3D Printing of Highly Stretchable, Shape-Memory, and Self-Healing Elastomer toward Novel 4D Printing
3D Printing of Highly Stretchable, Shape-Memory, and Self-Healing Elastomer toward Novel 4D Printing
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DOI：
10.1021/acsami.7b18265
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发表时间：
2018-02-28
影响因子：
9.5
通讯作者：
Qi, H. Jerry
中科院分区：
文献类型：
--
作者：
Kuang, Xiao;Chen, Kaijuan;Qi, H. Jerry
具有形状记忆（SM）和自修复（SH）等智能功能的柔性和可拉伸材料的三维（3D）打印对于开发用于无数应用的未来4D打印技术是非常理想的，例如软致动器，可部署智能医疗设备和柔性电子产品。在这里，我们报告了一种新型油墨，可用于通过紫外光辅助直接油墨书写印刷的高度可拉伸，SM和SH弹性体的3D打印。开发了一种含有聚氨酯二丙烯酸酯和线性半结晶聚合物的油墨，用于3D打印可拉伸高达600%的半互穿聚合物网络弹性体。3D打印的复杂结构显示出有趣的功能特性，例如高应变SM和SM辅助SH能力。我们证明了这种3D打印的SM弹性体具有用于生物医学设备的潜在应用，例如血管修复设备。这项研究为新型4D打印、软机器人和生物医学设备的进一步发展铺平了新的道路。
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.