碳纤维织物基形状记忆复合材料的制备及其性能

为解决碳纤维织物基形状记忆复合材料体系中催化剂存在对其回收利用的影响，通过基于动态酯交换反应的环氧-酸酐体系作为形状记忆功能体(BMT),以多羟基反应单体三羟甲基丙烷(TMP)作为反应活性剂，与碳纤维织物整理复合制备出无催化剂可调控的形状记忆复合材料。结果表明，这种多羟基催化碳纤维织物基复合材料(C-BMT)不仅具有良好的形状记忆的能力，而且其物理性能也十分优异，特别是拉伸强度较形状记忆功能体BMT提高了24倍。另外，这种复合材料中不存在催化剂，解决了催化剂对其回收利用产品应用的限制，对未来高性能碳纤维织物基复合材料开发和回收利用的实现具有重要意义。

Preparation and properties of shape-memory composites reinforced by carbon fabrics

In order to solve the impact of catalysts in a carbon fabric-based shape-memory composite system on its recycling performance, an epoxy-anhydride system (BMT) based on dynamic transesterification to provide the shape-memory function was adopted, and a polyhydroxy reactive monomer trimethylolpropane (TMP) as the reactive agent was combine with the carbon fabric to prepare a catalyst-free and regulable shape-memory composite. The results show that the polyhydroxy catalytic composite (C-BMT) not only displays a good shape-memory ability, and its physical properties are also excellent, especially its tensile strength is 24 time higher than that of the BMT system. In addition, there is no catalyst in the composite, which simplifies the recycling of the composites. The research is of great significance for the future development and for recycling of high-performance carbon fiber fabric matrix composites.