采用预浸热压成型工艺制备碳纤维增强杂萘联苯聚醚酮(CF/PPEK)和碳纤维增强杂萘联苯聚醚砜(CF/PPES)单向复合材料试样,通过对试样在常温和高温条件下的力学性能测试与分析,研究了高性能热塑性复合材料在高温条件下力学性能及其强度和模量保留率的变化规律.实验表明,在250℃下其拉伸和弯曲强度及模量的保留率均在60%以上,仍具有极高的承载能力.利用Tr-n预测模型对这两种复合材料高温力学性能进行的预测结果与试验值基本吻合,从而验证了这个模型的可行性.
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