Video clips

Shape memory effect and shape memory technology

PMMA for active disassembly

http://www.youtube.com/user/activedisassembly1#p/u

or

http://u.youku.com/user_video/id_UMzYzODc5NDg0.html

 

Shape memory polymers for active disassembly

 

 

 

 

 

http://www.youtube.com/user/SMM20110812#p/u

 

Shape memory alloys

Shape memory polymers

Shape memory hybrids

Shape memory material morphing wings

Medical applications of shape memory materials

One-way/two-way shape memory effect

Multiple-shape memory effect in shape memory materials

Shape memory effect in materials

Miscellaneous

Insects

Retractable/deployable structures

Hydrogels

Morphing

Devices for touch screen

Buttons-on-demand

Interesting technologies

3D/4D printing

Instruction

Fun

 

 

Active disassembly and programmed active disassembly

 

Material: PMMA

Purnawali H, Xu WW, Zhao Y, Ding D, Wang CC, Huang WM and Fan H, Poly(methyl methacrylate) (PMMA) for active disassembly, Smart Materials and Structures, Vol. 21, 2012, 075006

Reference

Active PMMA joint

PMMA自拆卸接头

http://www.youtube.com/watch?v=M_p6qzoDGmc

http://v.youku.com/v_show/id_XMjkzNzA0NDQw.html

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Active PMMA screw

PMMA 自拆卸螺丝

http://www.youtube.com/watch?v=rie_Zq2dVl0

http://v.youku.com/v_show/id_XMjkzNzA1MTI4.html

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Active PMMA snap-fit

自拆卸用 PMMA 卡扣

http://www.youtube.com/watch?v=FekHnnv4p7Y

http://v.youku.com/v_show/id_XMjkzNzA2NDk2.html

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Active PMMA tab 1

自拆卸用 PMMA 卡扣

http://www.youtube.com/watch?v=OAq8QuB1FKA

http://v.youku.com/v_show/id_XMjkzNzA5MDY4.html

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Active PMMA tab 2

自拆卸用 PMMA 卡扣

http://www.youtube.com/watch?v=9P1BVRR1UhM

http://v.youku.com/v_show/id_XMjkzNzEwMjQ4.html

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Programmed AD – PMMA box

自拆卸 PMMA 盒子

http://www.youtube.com/watch?v=g5e49utaFWs

http://v.youku.com/v_show/id_XMjkzNzEwNjc2.html

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Material: ABS/PC

Case material of Nokia’s mobile phone

(2011-2012 FYP)

Programmed active disassembly _A

http://youtu.be/C2XQ2sHbSWc

 

Programmed active disassembly _B

http://youtu.be/0d81KtnZq8s

Programmed active disassembly _C

http://youtu.be/ckE8Nb1ykGs

 

 

 


Shape memory polymers for active disassembly

 

SMP for active disassembly A

http://www.youtube.com/watch?v=7Z_5Qd_kZzs

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMP for active disassembly B

http://www.youtube.com/watch?v=ujtlSnyQCxU

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMP for active disassembly C

http://www.youtube.com/watch?v=ZIcEUl2Xzn0

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMP for active disassembly D

http://www.youtube.com/watch?v=qKBZuSzddfU

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMP for active disassembly E

http://www.youtube.com/watch?v=OAsMjl_0llY

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMP for active disassembly F                 

http://www.youtube.com/watch?v=iXthG2pD7-w

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMP for active disassembly G                

http://www.youtube.com/watch?v=yUemywV8Xt4

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMP for active disassembly H1 [strength test, with pre-compression]                  

http://www.youtube.com/watch?v=K75SAqH_aB8

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMP for active disassembly H2 [strength test, without pre-compression]                  

http://www.youtube.com/watch?v=2yLwq-W2Mk8

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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How to DIY shape memory polymer screw?

http://youtu.be/d8T6BR7VKg4

 

 

 

Active disassembly based on the shape memory effect in polymeric materials (Demo)

- (Programmed) active disassembly of components

- Active disassembly of materials

http://youtu.be/obVzuviyhVA

Active disassembly of polymeric components

-        To disassemble components/elements into particles for reusing.

-        A 2014/15 FYP

http://youtu.be/42FvHMZJc-Q

Active dis-assembly of a component into small elements: proof of concept

-        Material: ABS filament used in 3D printing

http://youtu.be/-L08UMn93M0

Active disassembly of PCL component into small pieces

-        Proof of concept: active dis-assembly for recycling

https://youtu.be/JaGuMADS_HY

Active dis-assembly of twisted PU filament

-        A potential way for recycling?

https://youtu.be/7kqvlmyp84M

 

 

 

Reference(s):

Huang, W.M., Yang, B. and Fu, Y.Q., Polyurethane shape memory polymers, Taylor & Francis/CRC Press, 2011

Huang et al Thermo-moisture responsive polyurethane shape-memory polymer and composites: a review, Journal of Materials Chemistry, Vol. 20, 2010, pp3367-3381

Purnawali H et al, Poly(methyl methacrylate) (PMMA) for active disassembly, Smart Materials and Structures, Vol. 21, 2012, 075006

Sun L, et al, Shape memory technology for active assembly/disassembly: fundamentals, techniques and example applications, Assembly Automation, Vol. 34, No.1, 2014, 78-93

 

 


Shape memory alloys

 

SMA inchworm A

http://www.youtube.com/watch?v=qmztarUHjOY

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Biased and two-way shape memory alloy actuators

-        One shape memory alloy spring vs. one normal spring; two shape memory alloy springs

http://youtu.be/g8oS8rzAQXk

Testing of nitinol spring(s) using a hot blower

https://youtu.be/Mp1spttfJ3k

Testing of 9 V battery activated nitinol SMA spring(s)

-        Including infrared video

https://youtu.be/NIMymR22ouY

Testing of triple springs in series

-        1 SMA + 1 normal + 1 SMA, 12 V battery

https://youtu.be/FEDX8Jkb6uI

Motion study of joule heated springs (SMA1, elastic, SMA2)

-        SMA1 and SMA2 are nitinol springs with different transition temperatures.

https://youtu.be/kawCRgnmzC0

SMA inchworm B

http://www.youtube.com/watch?v=1-oJxYzzeCc

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA 4-bar linkage

http://www.youtube.com/watch?v=6fzfdIp_IV0

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA micro boat

http://www.youtube.com/watch?v=hNTn0IMYu3Q

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA rolling car (1st version)

http://youtu.be/MFM-nVWJtA4

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA rolling car A

http://www.youtube.com/watch?v=X65mrEjH6Ig

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA rolling car B

http://www.youtube.com/watch?v=bV0AGy0PSew

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA rolling car C

http://youtu.be/O2ty3DH2j9k

SMA activated rolling ball

(2011/2012 Final year project)

http://youtu.be/0X-9pteHHJk

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SMA linear actuator

http://www.youtube.com/watch?v=nzjDNR6WT50

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA driven platform with multi-degree-of-freedom

http://www.youtube.com/watch?v=CGdAzD-EICo

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA gripper (atop a SMA driven platform with multi-degree-of-freedom

http://www.youtube.com/watch?v=7bGzy6RhQ5s

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA gripper (atop a SMA driven platform with multi-degree-of-freedom (assembly)

http://www.youtube.com/watch?v=WS860WVz7ik

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA heat engine (using hot water and 4 NiTi springs)

http://youtu.be/3vYO-fwJyoo

 

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SMA heat engine (using hot water)

http://www.youtube.com/watch?v=jCK9643gFBk

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA heat engine (using sunlight)

http://www.youtube.com/watch?v=I8878rX9zcw

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA heat engine (using sunlight) [+animation]

http://www.youtube.com/watch?v=zQlyp9Ua7oY

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA for crack closure and shape restoration A

http://www.youtube.com/watch?v=sZ1yiQrKjZo

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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SMA for crack closure and shape restoration B

(temperature distribution in SMA wire)

http://www.youtube.com/watch?v=CfERGFviKvM

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Joule heating NiTi SMA wire

http://youtu.be/424-3G0jNqU

 

Playing with superelastic Nitinol

http://youtu.be/nm2o8fhSkss

Shape fixing and increasing transition temperature of superelastic Nitinol

-        Fix a new permanent shape;

-        Increase transition temperature for the shape memory effect

http://youtu.be/emnpFBXuNGI

Training superelastic Nitinol to have two-way SME

-        Applicable to SME Nitinol as well.

http://youtu.be/GIonYwrBRdU

SMA mimosa

http://www.youtube.com/watch?v=c4ohr76LvOw

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Bi-Stable Buckling Strip

-        Joule heating SMA wires for actuation

http://youtu.be/7GE68366chc

 

SMA wire

http://youtu.be/792eJW6rTQM

 

Nitinol activated devices

-        Some old stuffs 

http://youtu.be/pZ410lHFLJA

SMA star shaped ring

http://youtu.be/6eGUlTSU9IY

Closure of a hole in silicone upon joule heating embedded SMA spring

http://youtu.be/LtWPvWXu5Sw

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Heating Nitinol spring with straw inside

http://youtu.be/llJdecanCVc

Phase transformation front in NiTi plate

-Upon loading and unloading at 10^(-3)/s

http://youtu.be/-IMiEXg7g88

 

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Phase transformation front movement in 1 mm diameter NiTi SMA wire A

-        upon stretching (strain rate: 10-3/s)

http://youtu.be/RUPzz9J3tg4

References:

Huang, W.M., Transformation front in shape memory alloys, Materials Science and Engineering: A, Vol. 392, No. 1-2, 2005, pp121-129

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Phase transformation front movement in 1 mm diameter NiTi SMA wire B

-        upon stretching (strain rate: 10-4/s)

http://youtu.be/hPY1fUE4j9k

 

References:

Huang, W.M., Transformation front in shape memory alloys, Materials Science and Engineering: A, Vol. 392, No. 1-2, 2005, pp121-129

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Impact induced phase transformation front movement in SMA (1 Kg)

-        1 mm diameter NiTi wire

http://youtu.be/9V69JtUhejo

 

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Impact induced phase transformation front movement in SMA (1.5 Kg)

-        1 mm diameter NiTi wire

http://www.youtube.com/watch?v=XX15aAa54ME&feature=youtu.be

 

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Impact induced phase transformation front movement in SMA (2 Kg)

-        1 mm diameter NiTi wire

http://youtu.be/jQ68CCxjZrI

 

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Evolution of surface morphology in NiTi thin film upon thermal cycling

http://youtu.be/3WiIXJQ3434

 

Reference:

Wu, M.J., Huang, W.M., Fu, Y.Q., Chollet, F., Hu, Y.Y., Cai, M.D., Reversible surface morphology in shape-memory alloy thin films, Journal of Applied Physics, Vol. 105, 2009, 033517

Reversible wrinkling atop NiTi thin film upon thermal cycling

http://youtu.be/t0vRRPh42EU

 

Reference:

Wu, M.J., Huang, W.M., Fu, Y.Q., Chollet, F., Hu, Y.Y., Cai, M.D., Reversible surface morphology in shape-memory alloy thin films, Journal of Applied Physics, Vol. 105, 2009, 033517

Simulation of laser annealing NiTi thin film

http://youtu.be/Stkwvr3skTE

References:

Miyazaki, S., Fu, Y.Q. and Huang, W.M. (Ed.), Thin film shape memory alloys–fundamentals and device applications, Cambridge University Press, 2009

He, Q., Huang, W.M., Gao, X.Y. and Hong, M.H., Numerical investigation of CO2 laser heating for annealing Ni/Ti multilayer thin films, Smart Materials and Structures, Vol. 14, 2005, pp1320-1324

He, Q., Hong, M.H., Huang, W.M., Chong, T.C., Fu, Y.Q. and Du, H.J., CO2 laser annealing of sputtering deposited NiTi shape memory thin films, Journal of Micromechanics and Microengineering, Vol. 14, 2004, pp950-956

Laser annealing NiTi thin film (a line) upon heating

http://youtu.be/NmFBJ8XoHN4

References:

Miyazaki, S., Fu, Y.Q. and Huang, W.M. (Ed.), Thin film shape memory alloys–fundamentals and device applications, Cambridge University Press, 2009

He, Q., Hong, M.H., Huang, W.M., Chong, T.C., Fu, Y.Q. and Du, H.J., CO2 laser annealing of sputtering deposited NiTi shape memory thin films, Journal of Micromechanics and Microengineering, Vol. 14, 2004, pp950-956

Thin film NiTi/silicon beam (two positions)

-gradually joule heating/cooling

http://youtu.be/NSr5y9x4Pps

Reference:

Huang, W.M., Liu, Q.Y., He, L.M. and Yeo, J.H., Micro NiTi-Si cantilever with three stable positions, Sensors and Actuators A, Vol. 114, No. 1, 2004, pp118-122 

Thin film NiTi/silicon beam (two positions) [side view]

- joule heating/cooling [3.2 mm long] (low current)

http://youtu.be/lyAxu0oD-JY

Reference:

Huang, W.M., Liu, Q.Y., He, L.M. and Yeo, J.H., Micro NiTi-Si cantilever with three stable positions, Sensors and Actuators A, Vol. 114, No. 1, 2004, pp118-122

Thin film NiTi/silicon beam (three positions)

-rapid joule heating (high current)

http://youtu.be/l8CcWn4YVgI

Reference:

Huang, W.M., Liu, Q.Y., He, L.M. and Yeo, J.H., Micro NiTi-Si cantilever with three stable positions, Sensors and Actuators A, Vol. 114, No. 1, 2004, pp118-122

600 micron thin film NiTi_silicon beam

http://youtu.be/N-nVhnffLRo

Reference:

Huang, W.M., Liu, Q.Y., He, L.M. and Yeo, J.H., Micro NiTi-Si cantilever with three stable positions, Sensors and Actuators A, Vol. 114, No. 1, 2004, pp118-122

1600 micron thin film NiTi_silicon beam

http://youtu.be/ImIBXN6dbZk

 

FEM simulation of NiTi_silicon beam

http://youtu.be/72G3sg_zPcc

 

Thin film NiTi/silicon gripper

-        1.6 mm long, 20 micron thick beam

http://youtu.be/CZMb8604WlU

References:

Huang, W.M., Liu, Q.Y., He, L.M. and Yeo, J.H., Micro NiTi-Si cantilever with three stable positions, Sensors and Actuators A, Vol. 114, No. 1, 2004, pp118-122

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Joule heating Thin film NiTi/silicon beam A

-        1.6 mm long, 5 micron NiTi atop 15 micron silicon beam (laser cutting to form circuit)

http://youtu.be/w9ymSjUkfpQ

References:

Huang, W.M., Liu, Q.Y., He, L.M. and Yeo, J.H., Micro NiTi-Si cantilever with three stable positions, Sensors and Actuators A, Vol. 114, No. 1, 2004, pp118-122

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Joule heating Thin film NiTi/silicon beam B

-        5 micron NiTi atop 15 micron silicon beam (laser cutting to form circuit) [smallest 0.6 mm long]

http://youtu.be/lGxSBbPjV80

References:

Huang, W.M., Liu, Q.Y., He, L.M. and Yeo, J.H., Micro NiTi-Si cantilever with three stable positions, Sensors and Actuators A, Vol. 114, No. 1, 2004, pp118-122

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

An introduction to various shape memory phenomena in shape memory alloys (SMAs)

http://youtu.be/xhykVMFDULk

An introduction to shape memory alloy rotatry devices

http://youtu.be/TdhmP2dKWIE

Buttons-on-demand

https://youtu.be/86H1iKpZXSs

 

 

 


Shape memory polymers

 

Shape memory effect in PU SMP A

http://youtu.be/NeiECH2RCCw

Shape memory effect in polyurethane card

http://youtu.be/aD5S_JxCzGY

Shape memory name card

-        Using normal material

http://youtu.be/Q6X81YQrZ4s

Shape memory effect in PU SMP B

http://youtu.be/YawCZnrZOl4

SME in thermo-responsive SMP A

http://www.youtube.com/watch?v=OB_dpL7RR-I

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Huang et al Thermo-moisture responsive polyurethane shape-memory polymer and composites: a review, Journal of Materials Chemistry, Vol. 20, 2010, pp3367-3381

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Shape recovery in PU SMP 001

http://youtu.be/pwR_xpJjP_s

 

Shape recovery in PU SMP 002

http://youtu.be/beb1UG55qKQ

 

Shape recovery in PU SMP 003

http://youtu.be/q_j1a88sZoU

 

Shape recovery in PU SMP 004

http://youtu.be/F_VLIDlzSg8

 

Shape recovery in PU SMP 005

http://youtu.be/m5eCDGhKnUo

 

Shape recovery in PU SMP 006

http://youtu.be/7MyEQGIlhWE

 

Shape recovery in PU SMP 007

http://youtu.be/NFIGsYiV59s

 

Shape recovery in PU SMP 008

http://youtu.be/G-wieECBNmY

 

Testing body/room temperature-responsive shape memory polyurethane

https://youtu.be/-sRi80X2QlQ

Hand-temperature activated shape recovery

-        Material: polyurethane

https://youtu.be/OjkzFwTlMrE

Shape memory effect in PCL

http://youtu.be/n7qmmlPTspE

The shape memory effect in PCL A

http://youtu.be/U0S8XRkZ33I

Pre-stretched PCL thin wire in hot water

-        Electrospinning produced PCL wire

http://youtu.be/7S5Pg1BdS5s

Shape recovery of cross linked PCL

-        In hot water

https://youtu.be/K9rWRfE9hms

Dancing of cross linked PCL

-        Chemo-responsive SME in PCL

https://youtu.be/sq4TyEJJfbY

Chemo/heat-responsive SME in cross-linked PCL

https://youtu.be/ZisnUk5geEE

SME in moisture-responsive SMP A

http://www.youtube.com/watch?v=L86ybNjWwZQ

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Huang et al Thermo-moisture responsive polyurethane shape-memory polymer and composites: a review, Journal of Materials Chemistry, Vol. 20, 2010, pp3367-3381

Huang et al, Water-driven programmable polyurethane shape memory polymer: demonstration and mechanism, Applied Physics Letters, Vol.86, 2005, pp114105

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Heating responsive SME in PU wire

-        With/without constraint

http://youtu.be/2hfkgOtqPgM

Pre-stretched PU in tube with ethanol

http://youtu.be/v-RxFDuXrLY

Reset the permanent shape of a shape memory polyurethane

-        A revisit.

-        Preliminary investigation.

-        Material: TPU.

https://youtu.be/59DannEV-Bc

Set the permanent shape of a TPU by hands (Recorded in Dec. 2014)

https://youtu.be/2AO-IJ86JvE

The SME in redox glue (in hot water)

http://youtu.be/E9BNy59RSPE

Heating responsive SME in redox glue

http://youtu.be/x-rMqz2x18o

Heating responsive SME in redox glue( coin version)

http://youtu.be/n4a8r4hNW0I

Water-responsive SME in cellulose

http://youtu.be/GB4ewjmzqkc

PU SMP under stretching at room temperature

http://www.youtube.com/watch?v=niX4cjFx_do

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Refreshable SMP Braille paper A

http://www.youtube.com/watch?v=B0hQaDfqbAE

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Refreshable SMP Braille paper B

http://www.youtube.com/watch?v=-6cMpYtWWyE

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Refreshable SMP Braille paper C

http://www.youtube.com/watch?v=nLib-d-7ZaE

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Write-on transparency film as refreshable braille paper for the blind

 http://youtu.be/vK8lVejgg6s

Heating pre deformed write on OHP transparency film

http://youtu.be/ogZaPQQPUV4

Shape memory effect in overhead transparency

http://youtu.be/5MAAr6bmtdo

SME in transparency after color-printed

http://youtu.be/2qZH-dfBXIM

Transformer using SMP form

http://www.youtube.com/watch?v=AncQTeftvjk

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Shape recovery in a PU foam upon heating

http://youtu.be/G8Y79LcqNP0

Reference(s):

Tey, S.-J., Huang, W.M. and Sokolwski, W. M., On the effects of long term storage in cold hibernated elastic memory (CHEM) polyurethane foam, Smart Materials and Structures, Vol. 10, No. 2, 2001, pp321-325

The shape memory effect in PU foam

 

- polyurethane foam deformed at room temperature

http://youtu.be/5HnAqFFby3A

The SME in toothbrush cover bag

https://youtu.be/tO2lMA7yAFM

Testing of a plastic food packaging bag

https://youtu.be/4-6gKIXPvs4

Testing of plastic packaging tea bag

https://youtu.be/bEO9YVENFXY

Testing of plastic packaging bag (white coffee)

https://youtu.be/kmfQ-HrjRgw

Repeat, rapid & comfort fitting elastic insole

- Different from memory foam type of insole.

- Simply step-on to get a pair of elastic insole, just for you and only fit you.

http://youtu.be/q6f5BNWya4Y

Comparison of elastic, memory and shape memory insoles

http://youtu.be/lYEgzMVi2AM

Cannot find the right size? Why not let shoes fit you.

http://youtu.be/U04muHhAsfo

Easy fitting shoes

-        Simplified version

http://youtu.be/Uv7eD221bO0

Comfort fitting shoes V2

-        No size, no left/right, just wear it and then it will fit your size for as long as you wish.

http://youtu.be/J6_rSZlMkuE

3D animation of comfort fitting shoes

Comfort fitting at any time, whenever you want.

Single size;

No right/left side.

http://youtu.be/E_puXEvCNsc

Comfort fitting shoes (sock version to proof of concept)

http://youtu.be/vz8Wa7gkLGY

Comfort fitting shoes [June 2015]

http://youtu.be/PlNbNBUr5ks

 

Shape memory shoes for comfort fitting 20151014

-        Proof of concept

https://youtu.be/e99wNlrH5Qo

Comfort self-fitting shoes 20160211

https://youtu.be/QGvyQKulGUU

Comfort self-fitting shoes (video) 20160212

https://youtu.be/Pq200IpqO3M

Single sized shoes 20160310

-        PCT filed

https://youtu.be/nF7j5wiXobQ

Single sized shoes 20160329

-        Proof of concept

https://youtu.be/hHhRjeTNr_0

Single sized shoes 20160412

https://youtu.be/Nqt_AKLvXKg

Single sized shoes 20160419

https://youtu.be/VqaYyZmizsg

 

Single sized shoes 20160503

https://youtu.be/RiUlVeMB2mg

Rapidly personalized soft elbow pad (proof of concept)

¾    Heat to 65 Deg C for softening, wear it when it is not too hot. After cooling back to room temperature, Bingo.

https://youtu.be/k2scmjkfkUs

Demonstration of TPU slipper

https://youtu.be/49uFNt5BwNE

Rapid comfort fitting sock-shoes

 

-        As compared with

 

Skinners – ultraportable footwear for every adventure

 

https://www.kickstarter.com/projects/skinners/skinners-revolutionary-ultraportable-footwear-with?ref=project_tweet

 

Our shoes are able to maintain the shape of your foot once "programmed" to fit your size/shape (personalized), and stiffer (while still elastic) to provide better protection.

 

# PCT has been filed.

https://youtu.be/3tzDOk33xz4

Shape memory comfort fitting sock-shoes 20160604

https://youtu.be/aoHrZvwotRU

Comparison of normal socks and shape memory sock-shoes

https://youtu.be/s2ZYsC9qjKg

Shape memory sock shoes 20160705E

https://youtu.be/tWsMFJ3sc3o

Shape memory sock-shoes 20160815 A

-        Surface finishing improved

https://youtu.be/mBe3bKUKUBY

Testing 3D print pen sketched shape memory shoes

https://youtu.be/CEcYg53IE28

Shape memory sock shoes

-        Thin MG version

https://youtu.be/eVEWdwbAvGM

Shape memory sock shoes

-        Thick MG version

https://youtu.be/n4bmc6VC9bc

Shape memory sock-shoes V20170328A

-        How to prepare your own sock-shoes in a couple of minutes?

https://youtu.be/NzK_jcKZWYY

Shape memory sock-shoes: 1st test

https://youtu.be/CFIffRAphLI

Self-fitting shoes: field test (2017/07/09)

https://youtu.be/iRkNtXQkcx8

Sock shoes 20170716 testing

-        tested in gym

https://youtu.be/pBY7XCCS4Zs

Sock-shoes (indoor/outdoor tests) 20170716

https://youtu.be/yXZJe_0Ntso

Testing of shape memory shoes 20170823

https://youtu.be/ZkO08wTEGok

Comparison of normal socks and personalized sock shoes

Refer to, e.g.,

-        https://youtu.be/mBe3bKUKUBY

-        https://youtu.be/tWsMFJ3sc3o

for the process of personalization.

https://youtu.be/p6Ufm1hZf0U

Testing of 5-finger sock-shoes

https://youtu.be/Xb0sqD7Q7Ck

1-4-all sock-shoes V20171105.1

 

-        No size. no right/left.

Comfort fitting whenever wanted again and again.

https://youtu.be/aH_HfwXYTx0

Rapid personalized hallux valgus correction socks

-        03 Nov 2016

https://youtu.be/SsLNLeaBVzg

Shape memory hand ring

https://youtu.be/MNSBVUy6C00

Heat shrink (foam) tube

https://youtu.be/JpYkLKCgk7s

Heat shrink (foam) tube for comfort handle

-        Proof of concept

https://youtu.be/ZdVMHzhIIWk

Testing of slow recovery foam

-        Recovery speed is much lower than ordinary slow recovery foam (memory foam). The shape deformed at high temperatures can be maintained for a long period of time.

https://youtu.be/fPEYlrgHoSk

To modify elastic textile to become shape memory textile (I)

https://youtu.be/56-WKtNkHSk

To modify elastic textile into shape memory textile (II)

https://youtu.be/xPGcSBd9qUw

Testing of Jersey with/without modification

https://youtu.be/37r5Dfj5iEo

Flatten butterfly wing

http://youtu.be/wkD_JS7Hxgo

Testing of two insole materials

https://youtu.be/mxobF1p7iZg

SMP tag

http://www.youtube.com/watch?v=0G5DeeQXQ0s

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Electrically conductive SMP to active a toy

http://www.youtube.com/watch?v=oVhOEM6RLlQ

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Shape memory effect in a plastic toy

https://youtu.be/Zsji_r6vYbU

Formation of protrusion array atop SMP

http://www.youtube.com/watch?v=Kdhd8L1peW4

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Machining of PS SMP plate

-        Material: PS shape memory polymer (from CRG)

http://youtu.be/Mrdflqqeo64

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Recovery of indents upon heating

-        Material: PS (from CRG)

http://youtu.be/KDwsP5bAOSY

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Indentation (PS SMP, simulation) A

http://youtu.be/o7KU4i9_oEY

Indentation (PS SMP, simulation) B

http://youtu.be/jztdeKr_SoQ

Indentation (PS SMP, simulation) C

http://youtu.be/3uA_CIgnRGA

Micro SMP spring (coil 500 um; wire 70 um)

http://www.youtube.com/watch?v=vgHUDP8XwAI

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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PU fiber (MM5520) in room temperature ethanol

http://www.youtube.com/watch?v=db_VpiCIZrE

 

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PU spring (MM5520) in room temperature ethanol

http://www.youtube.com/watch?v=6Ia9xnNW4nk

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PU spring (MM5520) in ethanol (self-twisting/untwisting)

http://www.youtube.com/watch?v=WYbq2XIqy9M

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Pre-stretched PU spring (MM5520) in room temperature ethanol

http://www.youtube.com/watch?v=jxmIj4BhfTY

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Shrinking of pre-stretched TPU in acetone atmosphere

-        Thermal plastic TPU265A (Tm about 60 Deg C), stretched at room temperature

http://youtu.be/AxYKWYhrFVQ

Bending of pre stretched PCL in acetone atmosphere

 

http://youtu.be/QKJVkVANlZQ

Buckling of pre-stretched PMMA in hot silicone oil

http://www.youtube.com/watch?v=KymDucw0EHU

Reference:

Zhao Y, Wang CC, Huang WM, Purnawali H, Buckling of poly(methyl methacrylate) in stimulus-responsive shape recovery, Applied Physics Letters, accepted

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Joule heating PU SMP (temperature distribution) A

http://youtu.be/-YdpPVVRYMI

Joule heating PU SMP (temperature distribution) B

http://www.youtube.com/watch?v=U1OsIVkH7HM

Joule heating PU SMP (temperature distribution) C

http://youtu.be/WK6qnlyqW6Q

Joule heating PU SMP (temperature distribution) D

http://youtu.be/iDLOG4Twj_A

Joule heating PU SMP (temperature distribution) E

http://www.youtube.com/watch?v=5P39v6ZnKws

Shape recovery of PU SMP/clay composite A

PU SMP (MM3520) 5wt% non-treated clay atop 80 Deg C hotplate

http://youtu.be/r5nzTP_5QC8

Shape recovery of PU SMP/clay composite B

PU SMP (MM3520) 10wt% non-treated clay atop 80 Deg C hotplate

http://youtu.be/NkH3DH3hOxA

From 3D printing to 4D

 http://youtu.be/7hJ-VUod1PM

Heating-responsive shape memory effect in PLA: from 3D printing to 4D

 http://youtu.be/fXSmsriL_iQ

Testing of the shape memory effect in 1.5 mm PLA filament  for 3D printing

http://youtu.be/0M4hKY4VFfw

The shape memory effect in PLA filament for 3D printing (small strain)

http://youtu.be/8FiVt4vvqCY

The shape memory effect in flexible filament from ESUN

- 1.75 mm for 3D printing, ESUN

http://youtu.be/W6YKfklzyEU

Heating-responsive shape memory effect in PVA filament (for 3D printing)

http://youtu.be/AfAkdJ_7nRo

PLA card 01

http://youtu.be/I_VH4RwSLXA

 

PLA card 02

http://youtu.be/xs7PdFhreYg

PLA card 03

http://youtu.be/VdZOilxogTA

Verification of concept of 3D printed magic card

http://youtu.be/q7f2_Jx3soE

Makerbot Replicator 2 printed PLA card 

http://youtu.be/FIQIhyLAR6c

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3D printed personalized card, which reveals the actual  image only upon heating

 

http://youtu.be/VCMG7f_DJWg

3D printed personalized card. Its actual image only appears when heated by a hair dryer or hot water. It may be used as a gift card to bring a big surprise (secret message, signature or image) .

4D card

 http://youtu.be/3Pp2jYpiFBo

Unfolding 3D printed Apple-Jobs

http://youtu.be/TvDotEXFBiM

3D/4D printed NTU

http://youtu.be/UCcnRvk6h-Y

Shape memory effect in PLGA

http://youtu.be/pLUpTBE8Dj0

Testing of the shape memory effect in PLGA (II)

http://youtu.be/bo6ebdxzrBo

SME in TPU

http://youtu.be/NAVftYAtjLY

The SME in heat treated thermoplastic polyurethane

-        Much less sticky at high temperatures, able to be programmed at high temperatures and good SME

http://youtu.be/5MihzQWIExo

Shape memory effect and change of transparency in thermoplastic polyurethane

http://youtu.be/_ZkVj1Ys6-Q

Soft shape memory polymer: able to catch finger print

http://youtu.be/nkdw60aVd18

Shape recovery in TPU 262A

-        Twisted when it was still transparent, held for crystallization

https://youtu.be/4LT7qkuyOzA

SME in a thermoplastic PU 20160421

-        Sample was prepared by hot compression

https://youtu.be/saH3x931zE4

The SME in coated TPU/PU mixture

-        Finger print caught and then removed upon heating again

http://youtu.be/pKg-iZm73Pw

SME in heat shrink polymer

https://youtu.be/LlFU4kyTpgM

Macro/micro SME in heat shrink polymer

https://youtu.be/hWVTA2hSTww

Heat assisted self-folding using heat shrink polymer

https://youtu.be/hekK2OPh9MM

Gravure printing using heat shrink tube

https://youtu.be/IlGrbwnoDcA

Heat to open

https://youtu.be/RBFCwydZoQs

Heat to open (2D)

https://youtu.be/LHEpx2gE868

Heat to bend due to strain mismatch

https://youtu.be/kZ9kxSUzUcc

Formation of Fe3O4 magnetic chains in polyurethane shape memory polymer

http://youtu.be/Nr3uyUTT2a8

Reference(s):

Huang, W.M., Yang, B. and Fu, Y.Q., Polyurethane shape memory polymers, Taylor & Francis/CRC Press, 2011

Lan, X., Huang, W.M., Leng, J.S., Liu, N., Phee, S.J. and Yuan, Q., Elektrisch leitfähige Formgedächtnispolymere (Electrically conductive shape-memory polymers), GAK Gummi Fasern Kunststoffe (in German), Vol.61, No. 12, 2008, pp784-789

Lan, X., Huang, W.M., Leng, J.S., Liu, N., Phee, S.J. and Yuan, Q., Electric conductive shape-memory polymer with anisotropic electro-thermo-mechanical properties, RFP Rubber Fibers Plastics, Vol. 4, 2009, pp 84-88

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Switching of Fe3O4 magnetic chains in polyurethane shape memory polymer at 200oC

http://youtu.be/604NV2BTwCc

Reference(s):

Huang, W.M., Yang, B. and Fu, Y.Q., Polyurethane shape memory polymers, Taylor & Francis/CRC Press, 2011

Lan, X., Huang, W.M., Leng, J.S., Liu, N., Phee, S.J. and Yuan, Q., Elektrisch leitfähige Formgedächtnispolymere (Electrically conductive shape-memory polymers), GAK Gummi Fasern Kunststoffe (in German), Vol.61, No. 12, 2008, pp784-789

Lan, X., Huang, W.M., Leng, J.S., Liu, N., Phee, S.J. and Yuan, Q., Electric conductive shape-memory polymer with anisotropic electro-thermo-mechanical properties, RFP Rubber Fibers Plastics, Vol. 4, 2009, pp 84-88

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An introduction to chemo-responsive shape memory/change effect in polymeric materials

http://youtu.be/Xmwt6p11Lf0

Reference(s):

Huang, W.M., Yang, B. and Fu, Y.Q., Polyurethane shape memory polymers, Taylor & Francis/CRC Press, 2011

Huang et al Thermo-moisture responsive polyurethane shape-memory polymer and composites: a review, Journal of Materials Chemistry, Vol. 20, 2010, pp3367-3381

 


Shape memory hybrids

 

Shape memory effect in silicone/wax hybrid

http://youtu.be/5hWwwcCgXRg

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Shape memory effect in silicone/ sodium acetate hybrid

http://youtu.be/2oKWGxjtaYU

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Shape memory effect in silicone/wax/melting glue hybrid

http://youtu.be/b2jTrBT1RJo

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SME in silicone/glucose hybrid A

http://www.youtube.com/watch?v=napRAaupNgI

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SME in silicone/rosin hybrid A

http://www.youtube.com/watch?v=_3yVgqSOTTw

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Healing of scratch produced by blade atop TPU

-        Heat-assisted healing based on the shape memory effect in TPU

https://youtu.be/pWLZn6WAyAQ

Rubber-like SMH with repeated instant self-healing function A1

http://www.youtube.com/watch?v=PBthRXKJeUM

 

Reference(s):

Huang et al, Shape memory materials, Materials Today, Vol. 13, 2010, pp54-61

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Rubber-like SMH with repeated instant self-healing function A2

http://www.youtube.com/watch?v=kKBDPUtN_Sg

 

Reference(s):

Huang et al, Shape memory materials, Materials Today, Vol. 13, 2010, pp54-61

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Rubber-like SMH with repeated instant self-healing function A3

http://www.youtube.com/watch?v=WRebpWvpk9w

 

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Rubber-like SMH with repeated instant self-healing function A4a

[Programmed sample (in V-shape) under cyclic loading at room temperature]

http://www.youtube.com/watch?v=N8us-7BEASE

 

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Rubber-like SMH with repeated instant self-healing function A4b

[Original straight sample under cyclic loading at room temperature.]

http://www.youtube.com/watch?v=BkgcwFKsQPI

 

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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Rubber-like SMH A

http://www.youtube.com/watch?v=nWEtddspd9o

 

Reference(s):

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

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It is show-time: Magic I

 

http://www.youtube.com/watch?v=O_ndngzQIRg

Samples prepared by: CHIA JIUN WEI as a part of his URECA 2010

Magician: TAN KHUN LING as a part of his URECA 2011

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It is show-time: Magic II

 

http://youtu.be/E0KXMGtaqTU

It is show-time: Magic III

 

http://youtu.be/UWahJHC1Nic

 

Mind reader

http://youtu.be/qn_0IMnm-sA

Magician: TAN KHUN LING as a part of his URECA 2011

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Reconfigurable elastic mug

The distorted elastic mug (made of silicone and MG) is able to return its original shape upon heating by hot water.

- URECA 2013-2014 project by TAN PHEI CHIEH

http://youtu.be/w6rI_lpsQXo

Room temperature programmable shape memory rubber

https://youtu.be/G_nBiL-Y4_A

Body/room temperature programmable rubber-band-like thermoplastic shape memory polymer

-        Thermoplastic (good for 3D printing), rubber-band-like at room temperature, programmable at body/room temperature in 3-5 min, 100% shape fixity ratio and shape recovery ratio

https://youtu.be/he9fPXeUWns

Rubber-band like transparent shape memory polymer

-Always as elastic as rubber-band, fully transparent,  with heat-responsive shape memory effect

https://youtu.be/kC5tuPWBU8o

Wearable electrical device based on flexible shape memory polymeric material

Resistance measurement (combined)

https://youtu.be/DscqyMtfzFY

Cooling/water-responsive SMH A

[Melting upon cooling]

http://www.youtube.com/watch?v=VMeZAPzMXYw

Reference:

Wang CC, Huang WM, Ding Z, Zhao Y, Purnawali H, Cooling-/water-responsive shape memory hybrids, Composites Science and Technology, in press

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Cooling/water-responsive SMH B

[Programming]

http://www.youtube.com/watch?v=09t_vFg_LTE

Reference:

Wang CC, Huang WM, Ding Z, Zhao Y, Purnawali H, Cooling-/water-responsive shape memory hybrids, Composites Science and Technology, in press

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Cooling/water-responsive SMH C

[Recovery in 0oC water]

http://www.youtube.com/watch?v=y_1ZzmcgHj8

Reference:

Wang CC, Huang WM, Ding Z, Zhao Y, Purnawali H, Cooling-/water-responsive shape memory hybrids, Composites Science and Technology, in press

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Cooling/water-responsive SMH D

[Recovery in 20oC water]

http://www.youtube.com/watch?v=yZj5BrXZpoM

Reference:

Wang CC, Huang WM, Ding Z, Zhao Y, Purnawali H, Cooling-/water-responsive shape memory hybrids, Composites Science and Technology, in press

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Cooling-responsive shape memory hydrogel

https://youtu.be/S8ePH8gYl7k

Tapping induced SME

http://youtu.be/DbVoQSswyiA

 

Pressure responsive SMH (impact)

http://youtu.be/T_gnocq8rzE

 

Water-responsive SMH A

(polymer sponge/cupric sulphate pentahydrate)

http://youtu.be/PBgdT-6E7Z0

Reference(s):

Fan, K., Huang, W.M., Wang, C.C., Ding, Z., Zhao, Y., Purnawali, H., Liew, K.C. and Zheng, L.X., Water-responsive shape memory hybrid: design concept and demonstration, eXPRESS Polymer Letters, Vol. 5, No. 5, 2011, pp409-416

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

How to DIY your own shape memory foam?

 http://youtu.be/OxdDpNdtwzo

Transformer made of sponge/wax

-2013/14 FYP

http://youtu.be/jR4WBJkwYEQ

Shape memory effect in modified elastic sponge

https://youtu.be/1Gi1emU-wN0

Memory foam, hand impression

http://youtu.be/dpUToykm0XI

Heating assisted recovery in "elastic" sponge

- clamped for two days

http://youtu.be/cLCD4ekwaHo

Shape recovery of elastic sponge with/without heating

- clamped for one month

http://youtu.be/n8EE7drMaic

Heating assisted recovery in "elastic" sponge

- clamped for two months

http://youtu.be/m2ZLwzK2E_E

The shape memory effect in elastic sponge

- Water/heating-responsive?

http://youtu.be/BTLoVOwmucY

SME in EVA insole

http://youtu.be/Fw4QIkC0f4I

Comparison of elastic sponge, memory foam and shape memory foam

http://youtu.be/KbV6iwyKFC4

SME in styrofoam

http://youtu.be/YwJnAxe_4BY

Water-responsive SMH B

(silicone/ sodium acetate trihydrate)

(right: in air; left: in room temperature water)

http://youtu.be/2R9k5M-UkMc

Reference(s):

Fan, K., Huang, W.M., Wang, C.C., Ding, Z., Zhao, Y., Purnawali, H., Liew, K.C. and Zheng, L.X., Water-responsive shape memory hybrid: design concept and demonstration, eXPRESS Polymer Letters, Vol. 5, No. 5, 2011, pp409-416

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Electrically conductive SMH

(joule heating, 6%CF+20%wax56+74%silicone )

http://youtu.be/T6zpS-4hYzU

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Multiple-stimuli-responsive silicone-sodium acetate trihydrate hybrid

http://youtu.be/aJqQdKsdSUM

An introduction to mechano-responsive shape memory hybrid

http://youtu.be/2vZr21jx7j4

An introduction to cooling-responsive shape memory hybrid (SMH)

http://youtu.be/4dFcl1EEQuI

An introduction to shape memory hybrid (SMH): a technique to design your own shape memory materials

http://youtu.be/HvlMcYnhrMQ

 

 

 


Medical applications of shape memory materials

 

Self-untying SMP suture upon heating

http://www.youtube.com/watch?v=2XEBdzdRN70

 

 

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Self-untying SMP suture upon heating (fast)

http://youtu.be/_3KBjG1EMPs

 

Reference:

Huang WM, Song CL, Fu YQ, Wang CC, Zhao Y, Purnawali H, Lu HB, Tang C, Ding Z. Zhang JL, Shaping tissue with shape memory materials, Advanced Drug Delivery Reviews, in press

Self-untying SMP suture upon heating in hot water

http://youtu.be/bw7oklXN2zk

 

Self-tightening (PU wire) knot upon immersing into water

http://youtu.be/jISPzrxZs6w

Reference:

Huang, W.M., Yang, B. and Fu, Y.Q., Polyurethane shape memory polymers, Taylor & Francis/CRC Press, 2011

Huang WM, Song CL, Fu YQ, Wang CC, Zhao Y, Purnawali H, Lu HB, Tang C, Ding Z. Zhang JL, Shaping tissue with shape memory materials, Advanced Drug Delivery Reviews, in press

Self-tightening SMP suture upon heating

http://youtu.be/Uh6e7fFDB44

References:

Huang, W.M., Yang, B. and Fu, Y.Q., Polyurethane shape memory polymers, Taylor & Francis/CRC Press, 2011

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

PLA spiral spring for sutureless anastomosis

http://youtu.be/t_UoWalEYjw

Reference:

Huang WM, Song CL, Fu YQ, Wang CC, Zhao Y, Purnawali H, Lu HB, Tang C, Ding Z. Zhang JL, Shaping tissue with shape memory materials, Advanced Drug Delivery Reviews, in press

Self-tightening PLA staple

http://youtu.be/Y5gnwpdt-3g

Reference:

Huang WM, Song CL, Fu YQ, Wang CC, Zhao Y, Purnawali H, Lu HB, Tang C, Ding Z. Zhang JL, Shaping tissue with shape memory materials, Advanced Drug Delivery Reviews, in press

Proof of concept of self-tightening staple: 1 preparation

(2012/2013 FYP)

http://youtu.be/k08lj2FwW9E

 

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Proof of concept of self-tightening staple: 2 the shape memory effect

(2012/2013 FYP)

http://youtu.be/Bf3xrwQIOis

 

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Proof of concept of self-tightening staple: 3 penetration

(2012/2013 FYP)

http://youtu.be/jojO52kwyzE

 

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Proof of concept of self-tightening staple: 4 tightening

(2012/2013 FYP)

http://youtu.be/OYHRLSHZoAI

 

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Retractable SMA spiral stent (two-way SME)

http://youtu.be/u6IOmmcYLW4

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Retractable SMA stent (triple-SME)

http://youtu.be/PmUcWMpw4HA

Reference:

Huang WM, Song CL, Fu YQ, Wang CC, Zhao Y, Purnawali H, Lu HB, Tang C, Ding Z. Zhang JL, Shaping tissue with shape memory materials, Advanced Drug Delivery Reviews, in press

Retractable SMA/silicone composite stent

http://youtu.be/66JJDy9XlqE

Reference:

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Retractable SMH stent

(silicone/ sodium acetate trihydrate) upon immersing into room temperature water

 

http://youtu.be/T4PkAK9i6uA

 

Reference(s):

Fan, K., Huang, W.M., Wang, C.C., Ding, Z., Zhao, Y., Purnawali, H., Liew, K.C. and Zheng, L.X., Water-responsive shape memory hybrid: design concept and demonstration, eXPRESS Polymer Letters, Vol. 5, No. 5, 2011, pp409-416

Sun et al, Stimulus-responsive shape memory materials: a review, Materials and Design, 33, 2012, 577-640

Retractable elastic shape memory stent

http://youtu.be/hNvkuwr2Mdk

 

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Elastic shape memory polymeric stent with retraction function

http://youtu.be/0le2uQ6QPVM

(2009 EID project)

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Injection of PU SMP spiral spring/wire into jellyfish

http://www.youtube.com/watch?feature=player_detailpage&v=U6lySw33pbM

Water activated PEG sponge hybrid

http://youtu.be/ct7PNLB8u3U

Wetting induced buckling in PEG hydrogels with different prestrains

http://youtu.be/heBKLaxUCWI

Wetting induced buckling in PEG hydrogel (optimized)

http://youtu.be/Zyoe-63UCRE

Wetting induced buckling in PLGA PEG composites with different prestrains

http://youtu.be/zjkEHnfn5HU

Rapid occlusion of blood vessel (demonstration)

-        In two minutes.

An A*STAR BEP project

http://youtu.be/5KqjOtJZEBI

Rapid occlusion of blood vessel (in vitro, dual vessels)

http://youtu.be/UBD7TemjwcU

Biodegradable shape memory embolization: Animal test

April, 2015

http://youtu.be/24SPv34qo9E

Water/body fluid activated bio-degradable plug

23 Sep 2015

https://youtu.be/aaHFDaJy7pc

Wetting induced buckling (real time exp. results) 201602

-        Biodegradable polymer

https://youtu.be/tbyNFgeYmk8

Water induced buckling in pre-stretched PEG wire within a tube

PEG in constrained tube with flow system.

Diameter

Before stretching: 2.45 mm

After stretching 600% : 0.87 mm

Length: 50 mm

Flow Rate: 120 ml/min

Flow media : Deionized water at 37 °C

Tube Diameter: 4 mm

https://youtu.be/6MQ0Th4128w

Comparison of water induced buckling  in pre-stretched PEG wire