环氧树脂的增韧改性研究现状

Study on development of toughening modification of epoxy resin

未改性环氧树脂固化物存在质脆、冲击性能差等缺点,限制了其在复杂环境下的应用。针对这些不足,国内外科研工作者对其进行了大量改性研究。介绍了近几年来研究较为深入的互穿网络聚合物(IPN)、热致液晶聚合物(TLCP)、核壳聚合物(CSP)、纳米粒子等几种增韧环氧树脂的方法及其最新进展。

The unmodified cured epoxy resins are brittle and notch sensitive, which drawbacks limited the application in the strict fields. Much effort was paid to improve the performance of epoxy resins at home and abroad. Some new studies on the toughening methods of epoxy resin,such as interpenetrating polymer network,thermoset liquid crystal polymer, core-shell polymer and nano-particles, and their recent progress were introduced in detail in this paper.