材料科学
环氧树脂
固化(化学)
复合材料
光致聚合物
丙烯酸酯
形状记忆合金
聚合物
韧性
阳离子聚合
聚氨酯
热稳定性
紫外线固化
聚合
高分子化学
化学工程
单体
工程类
作者
Ling Zhao,Ran Yu,Yangyang He,Manwen Zhang,Feng Tian,Lei Wang,Yulei Zhao,Wei Huang
标识
DOI:10.1016/j.addma.2023.103904
摘要
Fabricating shape memory polymers with complex configurations and high mechanical performance for application as structural materials remains a significant challenge. Here, an epoxy/acrylate hybrid material with remarkable mechanical properties and excellent shape memory performance is fabricated using vat photopolymerization printing technology through photo-thermal dual curing mechanism. The UV-curing component comprises of a polyurethane acrylate and a rigid active diluent to ensure robustness and toughness. Meanwhile, the thermal curing epoxy constituent utilizes a benzylanilinium salt as the cationic initiator for its storage and handling stability throughout the UV curing stage. The interpenetrating polymer network and the unique two-phase molecular microstructure impart the hybrid material with good shape memory and high mechanical properties. Many complex objects are fabricated using vat photopolymerization printing technology and employed in self-deploying antennas, intelligent mechanical grippers, and switches. Combining with excellent printability, mechanical and shape memory properties, the hybrid materials have great potential applications in various fields.
科研通智能强力驱动
Strongly Powered by AbleSci AI