期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 8, 页码 7381-7388出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b18265
关键词
3D printing; highly stretchable; shape memory; self-healing; semi-IPN
资金
- NSF award [CMMI-1462894, 1462895]
- AFOSR grant [FA9550-16-1-0169]
- HP, Inc.
The three-dimensional (3D) printing of flexible and stretchable materials with smart functions such as shape memory (SM) and self-healing (SH) is highly desirable for the development of future 4D printing technology for myriad applications, such as soft actuators, deployable smart medical devices, and flexible electronics. Here, we report a novel ink that can be used for the 3D printing of highly stretchable, SM, and SH elastomer via UV-light-assisted direct-ink-write printing. An ink containing urethane diacrylate and a linear semicrystalline polymer is developed for the 3D printing of a semi interpenetrating polymer network elastomer that can be stretched by up to 600%. The 3D-printed complex structures show interesting functional properties, such as high strain SM and SM-assisted SH capability. We demonstrate that such a 3D-printed SM elastomer has the potential application for biomedical devices, such as vascular repair devices. This research paves a new way for the further development of novel 4D printing, soft robotics, and biomedical devices.
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