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研究了在层内和层间两种混杂方式下,T300与表面处理前后的超高分子量聚乙烯(UHMWPE)纤维混杂复合材料的弯曲强度和ILSS的变化,结果表明层间混杂复合材料的黏结性比层内混杂好。在相同的混杂方式下,采用未处理的DC88纤维、合成的VE树脂,混杂复合材料的ILSS比E 51体系提高25%以上。采用VE树脂和处理后DC88/T300层间混杂,控制含胶质量在40%时,ILSS达到42 5MPa,是未处理的DC88/E 51体系的ILSS的5倍。混杂复合材料密度在1 12～1 24g/cm3之间,在航空航天结构材料减重上有良好的应用前景。
The flexural strength and ILSS of T300 and UHMWPE fiber hybrid composites before and after the surface treatment were studied in two kinds of interlaminar and interlaminar hybrid methods. The results show that the interlaminar hybrid composites have good cohesiveness Better mixed than the layers. In the same hybrid mode, using non-treated DC88 fibers, synthetic VE resin, hybrid composite ILSS than E 51 system increased by more than 25%. With VE resin and DC88 / T300 treated interlaminar mixture, the ILSS reached 42 5MPa when the gel content was 40%, which was 5 times higher than that of the untreated DC88 / E 51 system. The density of hybrid composites is between 1 12 and 1 24 g / cm3, which has a good application prospect in weight loss of aerospace structural materials.