期刊
MACROMOLECULAR MATERIALS AND ENGINEERING
卷 301, 期 9, 页码 1111-1120出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.201600139
关键词
fillers; near-infrared light; shape-memory polymer; soft actuator; stimuli-sensitive polymers
资金
- Scientific Research Foundation for Returned Scholars [ZX15504320001]
- National Natural Science Foundation of China [51503098]
- Preferred Program Foundation for Returned Scholars [ZX15512320008]
- Priority Academic Program Development of the Jiangsu Higher Education Institutions (PAPD)
Light triggered soft actuator in aqueous media has applications in operating underwater objects, creating liquid flow, and adjusting reaction velocity, etc. Here, composites prepared from commercial materials, poly[ethylene-ran-(vinyl acetate)] (EVA) and aniline black (AB), are reported as one cost efficient material for preparing such actuator, where EVA and AB work respectively as shape-memory polymer matrix and near-infrared light triggered photothermal filler. Upon irradiation, the temperature of the composites increases greatly with light power density and AB content. Light-induced shape-memory effect (SME) with recovery ratio >98%, temperature-memory effect (TME), and reversible bidirectional shape-memory effect (rbSME) of the prepared composites in air are realized. Higher light power density is required to trigger the shape recovery in aqueous media, while good SME, TME, and rbSME are also achieved. Releasing device and gripper are used to indicate the feasibility of the composites as light triggered soft underwater actuators.
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