对连续碳纤维增强杂萘联苯聚醚酮(CF/PPEK)的界面结构与性能进行了研究.通过XPS和Raman光谱表征了CF/PPEK复合材料的界面结构,并利用微脱粘试验研究了CF/PPEK复合材料的界面性能.结果表明:PPEK能与经过表面处理的碳纤维形成较强的界面作用,粘结情况较为理想,保证了基体与纤维间的应力传递,使得CF/PPEK复合材料具有良好的热稳定性及力学性能.基于复合材料细观结构的周期性假设,采取连续性与周期性边界条件,建立了高性能热塑性复合材料三相同轴圆柱形细观分析模型.应用剪滞理论和非线性有限元分析方法对CF/PPEK的界面性能进行了模拟计算与分析,其计算结果与试验结果吻合较好.
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