制备了炭化硅/环氧树脂(SiC/EP)和炭化硅接枝聚甲基丙烯酸缩水甘油酯/环氧树脂(SiC-g-PGMA/EP)两种纳米复合材料,通过差示扫描量热法(DSC)研究了纳米SiC粒子的加入及其表面接枝改性等对环氧树脂体系固化过程的影响.研究结果表明,纳米SiC粒子的加入及其表面接枝PGMA改性可以降低固化体系的理论凝胶温度,使固化反应放热比较平缓,有利于成型加工.同时,由于粒子表面羟基的催化作用及接枝物PGMA中环氧基团的反应活性,对固化反应的进行有明显的促进作用.
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