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为了改善碳纤维/聚芳基乙炔复合材料的界面性能,采用表面氧化、表面接枝、偶联剂、表面涂层等方法对碳纤维进行表面处理,探讨了各种方法对非极性聚芳基乙炔树脂基复合材料的界面改性效果。研究表明,纤维表面氧化处理后有利于碳纤维/聚芳基乙炔复合材料界面性能的改善,在此基础上通过表面接枝及表面偶联剂处理在纤维表面引入可与基体树脂发生反应的基团,可以达到非极性树脂基复合材料界面改性的目的。极性的高碳酚醛树脂可以更好地浸润氧化后的纤维表面,并且与聚芳基乙炔树脂在结构上相似,因此作为涂层处理纤维表面后可以明显提高材料的界面性能,该方法适于进行3D织物的改性处理,是较为理想的处理方案。
In order to improve the interfacial properties of carbon fiber / poly (arylacetylene) composites, the carbon fibers were surface-treated by surface oxidation, surface grafting, coupling agent and surface coating. The effects of various methods on non-polar polyarylacetylene Interfacial Modification of Resin Matrix Composites. The results show that the fiber surface oxidation treatment is conducive to the improvement of the interface properties of the carbon fiber / polyarylacetylene composites. On the basis of this, surface-grafting and surface-coupling agent treatments are introduced to the surface of the fiber to react with the matrix resin , Can achieve the purpose of non-polar resin-based composites interface modification. Polar, high-carbon phenolic resins provide better wetting of the oxidized fiber surface and are structurally similar to polyarylacetylene resins, so handling of the fiber surface as a coating can significantly improve the interfacial properties of the material, which is suitable for For 3D fabric modification, is an ideal solution.