CF/PPEK复合材料界面结构与性能  

Interfacial structure and properties of CF/PPEK composites

作　　者：刘文博[1] 王荣国[2] 矫维成[2] 江龙[2] 

机构地区：[1]哈尔滨工业大学材料科学与工程学院,哈尔滨150001 [2]哈尔滨工业大学复合材料与结构研究所,哈尔滨150001

出　　处：《复合材料学报》2008年第4期45-50,共6页Acta Materiae Compositae Sinica

基　　金：黑龙江省科技攻关项目(GC04A214)

摘　　要：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。The interfacial structure and properties of the carbon fiber reinforced poly phthalazinone- ether-ketone （CF/PPEK） composites were studied. The interfacial structure of CF/PPEK composite was characterized by XPS and Raman spectrum. And the interfacial properties were discussed through microdebonding experiments. The results show that PPEK resin can form strong interaction with treated carbon fiber at interface, which assures the stress transfer between the matrix and fiber. As a result, CF/PPEK composites have good heat-stability and mechanical properties. A mesomechanical model was presented based on the hypothesis of periodicity in microstructure with continuous and periodic boundary conditions carried out. The interfacial strength of CF/PPEK was analyzed and calculated according to the shear-lag theory and nonlinear FEM method. The results well correspond with the experiments.

关 键 词：CF/PPEK 界面结构 界面性能 细观分析模型 

分 类 号：TB332[一般工业技术—材料科学与工程]