经纬纱和针织纱分别选用不同线密度的高模高强玄武岩纤维,以不同衬纱方式编织出机织针织复合(CWK)织物和多层双轴向纬编(MBWK)织物,并以其作为增强体,采用真空辅助树脂传递模塑工艺制备了玄武岩纤维/乙烯复合材料.对两种复合材料0°、90°和45°方向的弯曲性能进行测试,分析比较了弯曲应力-应变特征曲线及纱线强度.结果表明:两种复合材料具有较好的弯曲性能,0°和90°方向的弯曲性能均优于各自45°方向的,弯曲应力-应变曲线均表现出一定的塑性破坏特征；MBWK织物增强复合材料0°和90°方向的弯曲性能又分别高于CWK织物增强复合材料0°和90°方向的弯曲性能；复合材料中经纱和纬纱的屈曲程度不同,致使MBWK织物增强复合材料的比模量和纱线强度均高于CWK织物增强复合材料,两种复合材料的弯曲性能受不同衬纱方式的影响,而两种复合材料试样的弯曲破坏形态相近.研究结果为双轴向衬纱纬编玄武岩纤维复合材料的应用提供了参考.
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