对热塑性树脂聚醚酮（ＰＥＫ）改性环氧体系进行了探索性研究，结果表明，Ｅ—５１／ＰＥＫ体系有一定增韧效果，且耐热性没有下降，并对该共混体系的微观结构进行分析，从理论上初步分析了该共混体系的机理。ＱＪ１＃环氧／ＰＥＫ共混体系中，ＰＥＫ树脂包裹环氧树脂球形颗粒形成了网络—球粒结构，这种结构有一定的增韧效果。 The results showed that E-51 / PEK had some toughening effect and the heat resistance did not decrease, and the microstructure of the blends was also studied Structure analysis, a preliminary analysis of the mechanism of the blend system theoretically. QJ1 # epoxy / PEK blend system, PEK resin encapsulated epoxy spherical particles formed a network - ball structure, this structure has a certain toughening effect.