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High-cycle-life and...
High-cycle-life and high-loading copolymer network with potential application as a soft actuator
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- Rehman, Hafeez Ur (author)
- Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China.
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- Chen, Yujie (author)
- Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China.
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- Hedenqvist, Mikael S. (author)
- KTH,Fiber- och polymerteknologi
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- Pathan, Radan (author)
- Shanghai Jiao Tong Univ, Dept Automat, Shanghai 200240, Peoples R China.
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- Liu, Hezhou (author)
- Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Dee Sea Explora, Shanghai 200240, Peoples R China.
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- Wang, Hesheng (author)
- Shanghai Jiao Tong Univ, Dept Automat, Shanghai 200240, Peoples R China.
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- Chen, Tao (author)
- Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China.
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- Zhang, Xiaomiao (author)
- Shanghai Gen Hosp, Songjiang Rd 650, Shanghai 201620, Peoples R China.
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- Li, Hua (author)
- Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Dee Sea Explora, Shanghai 200240, Peoples R China.
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Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China Fiber- och polymerteknologi (creator_code:org_t)
- ELSEVIER SCI LTD, 2019
- 2019
- English.
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In: Materials & design. - : ELSEVIER SCI LTD. - 0264-1275 .- 1873-4197. ; 182
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Thermo-responsive polymer materials ate appealing in emerging fields including soft robotics, artificial muscles, and actuators. However, realising a single smart polymer material that can achieve immense strain, fast actuation, and high loading remains a challenge. We attempted to address these limitations by fabricating a thermo-responsive copolymer network structure of poly(urethane-caprolactone-siloxane). The relative concentrations of these precursors were adjusted to realise a high mechanical strength of >= 17 MPa, 100% shape fixation, and a quick shape recovery time of <= 15 s. Experimental results revealed that the soft segments largely determines the extensibility and crystallinity of the copolymer material. The thermal gradient of the soft part enables the copolymer to self-heal during shape recovery. The copolymer network was applied to a load lifting device as an artificial muscle and was able to lift 200 times its weight with a short response time of <5 s and maximum power density that was half that of mammalian skeletal muscles. With its fast actuation, high loading, and self-healing abilities, the developed therrno-activated smart copolymer material is potentially applicable to a wide range of fields such as soft robotics, biomimetic devices, and prosthetics.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Shape memory
- Self-healing
- Artificial muscle
- Polyurethane
- Polydimethylsiloxane
- Kemi
- Chemistry
- Kemi
- Chemistry
Publication and Content Type
- ref (subject category)
- art (subject category)
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