Yu Zhengwei, Wang Zhenqing, Li Hao, Teng Jianxin, Xu Lidan
College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.
Materials (Basel). 2019 Apr 3;12(7):1107. doi: 10.3390/ma12071107.
Shape memory epoxy polymer (SMEP) composite specimens with different graphene oxide (GO) contents were manufactured to study the effects of GO mass fractions on epoxy polymer composites. While ensuring the shape memory effect of SMEP, the addition of GO also remarkably strengthened the mechanical performance of the polymers. Analyses of the epoxy polymer composites' thermal, mechanical, and shape memory performance were conducted through carrying out dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), and static tensile, three-point bending, impact, and shape memory tests. Moreover, the tensile fracture, bending fracture, and impact fracture interfaces of epoxy resin composites were examined with scanning electron microscopy. The final test results indicated that when the GO content was 0.8 wt %, SMEP composites had good shape memory performance and optimum thermal and mechanical performance.
制备了具有不同氧化石墨烯（GO）含量的形状记忆环氧树脂聚合物（SMEP）复合材料试样，以研究GO质量分数对环氧树脂基复合材料的影响。在确保SMEP形状记忆效应的同时，GO的添加还显著增强了聚合物的力学性能。通过进行动态力学分析（DMA）、热重分析（TGA）以及静态拉伸、三点弯曲、冲击和形状记忆测试，对环氧树脂基复合材料的热性能、力学性能和形状记忆性能进行了分析。此外，用扫描电子显微镜检查了环氧树脂复合材料的拉伸断裂、弯曲断裂和冲击断裂界面。最终测试结果表明，当GO含量为0.8 wt%时，SMEP复合材料具有良好的形状记忆性能以及最佳的热性能和力学性能。
