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利用热致型液晶化合物对环氧树脂进行增韧改性,固化体系既融合了液晶的有序性又保留了环氧树脂网络交联的特点,其韧性、冲击强度大幅度提高,而不降低耐热性,这是环氧树脂的传统增韧方法所无法比拟的,是实现环氧树脂高性能化的重要途径之一。热致型液晶高分子(TLCP)增韧环氧树脂可以归纳为两类:液晶环氧树脂(LCEP)增韧和其他聚合物液晶共混增韧。概述了LCEP增韧的方法和增韧机理,TLCP共混增韧的方法和增韧机理,综述了热致型液晶增韧环氧树脂的研究进展,并对其今后研究作了展望。
The toughening modification of the epoxy resin by the thermotropic liquid crystal compound is adopted. The curing system not only integrates the orderliness of the liquid crystal but also retains the cross-linking of the epoxy resin network, and greatly increases the toughness and impact strength without decreasing Heat resistance, which is incomparable with the traditional toughening of epoxy resin is one of the important ways to achieve high performance epoxy resin. Thermotropic liquid crystal polymer (TLCP) Toughened epoxy resin can be summarized into two categories: liquid crystal epoxy resin (LCEP) toughening and other polymer liquid crystal toughening. The toughening method and toughening mechanism of LCEP, toughening method and toughening mechanism of TLCP were summarized. The research progress of thermotropic liquid crystal toughened epoxy resin was summarized and its future research was prospected.