利用扫描电子显微镜研究了聚酯热熔胶PE30增韧环氧树脂的微观相结构；利用DSC、DMA和TGA研究了聚酯热熔胶PE30对环氧树脂耐热性能的影响；测试了环氧树脂的冲击强度、弯曲强度和断裂韧性,考察了聚酯热熔胶PE30对环氧树脂力学性能的影响.结果表明,聚酯热熔胶PE30的最佳质量分数为15％,在固化过程中环氧体系发生诱导相分离,相结构由单相到连续相再到反转相；断裂韧性和冲击强度分别提高了127％和250％；弯曲强度和弯曲模量分别降低27％和44％；而体系玻璃化转变温度与起始热失重温度下降约1.5％,损耗峰温度下降约2.5％,说明聚酯热熔胶PE30可以在很大程度上提高环氧树脂的韧性,同时保持其耐热性能基本不变.
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