环氧树脂的增韧研究进展

Research progress on epoxy resin toughening

环氧树脂是一种性能优良的基体材料,在机械、电子电器和交通运输等领域扮演着重要的角色。然而由于其具有高度交联的网状结构使其韧性差、脆性大,限制了其进一步推广应用。对环氧树脂改性常用的包括橡胶弹性体、热塑性树脂(TP)、互穿聚合物网络(IPNs)、超支化聚合物(HBP)、热致性液晶聚合物(TLCP)、核/壳结构聚合物(CSLP)和刚性微纳米粒子等增韧改性方法。对上述方法进行了梳理和评述,分析了各种增韧改性方法的发展、机理、优点和不足,展望了环氧树脂增韧的未来发展方向。

Epoxy resin is a kind of excellent matrix material,which plays an important role in the fields of machinery,electronics,transportation and so on.However,due to the high degree of toughness and brittleness of highly crosslinked network structure,the application of material is limited.Several methods of the modification of EP（including rubber elastomer,thermoplastic resin,interpenetrating polymer networks,hyperbranched polymer,thermotropic liquid crystal polymer,core-shell structure polymer,rigid particles）were reviewed.And the development,mechanism,advantages and disadvantages of various toughening methods were analyzed.Finally the future development direction of EP toughening were discussed.