采用熔融预聚法制备了N,N'-4,4 '-二苯甲烷双马来酰亚胺(BMI)/二烯丙基双酚A(DBA)/聚醚酮(PEK) (B/D/P)改性树脂体系.分析研究了改性树脂的固化反应特性、力学性能和热稳定性.探讨了PEK的含量对B/D/P树脂性能的影响.结果表明,适量PEK的加入可以明显提高树脂的韧性和强度(8％(质量分数)PEK的加入可使纯B/D树脂冲击强度增加61.8％,弯曲强度增加51.3％),对树脂的耐热性也有一定提高.
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