制备了烯丙基化程度可达173%的烯丙基酚醛树脂(AN173),并与双马来酰亚胺(BMI)以1:1的质量比进行共聚,制备了双马改性的烯丙基酚醛树脂(BMAN173).研究了该树脂工艺性,确定了其固化制度,考察了该树脂石英布复合材料层合板的耐热性和力学性能.实验结果表明,BMAN173树脂具有良好的工艺性,适合于RTM、模压成型等多种成型工艺.BMAN173树脂固化物表现出良好的耐热性,其储能模量起始下降温度约为390℃,起始热分解温度超过430℃.与传统酚醛树脂相比,该树脂的复合材料的高温力学性能优异,350℃弯曲强度和层间剪切强度保留率分别约为57%和62%;复合材料具有优异的热性能,其储能模量起始下降温度约为410℃,玻璃化转变温度超过了450℃.BMAN173树脂是耐高温复合材料的理想候选基体树脂.
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