碳纤维/聚苯并(噁)嗪复合材料的界面与力学性能的关系研究

玻璃钢/复合材料, 2005, (3): 20-23. doi: 10.3969/j.issn.1003-0999.2005.03.005

碳纤维/聚苯并(噁)嗪复合材料的界面与力学性能的关系研究

卢晓春 ^1, , 杨小平 ^2, , 信春玲 ^3, , 余鼎声 ^4,

1.北京化工大学国家碳纤维工程技术研究中心,北京,100029

2.北京化工大学国家碳纤维工程技术研究中心,北京,100029;北京化工大学北京市,新型高分子材料制备与加工重点实验室,北京,100029

3.北京化工大学北京市,新型高分子材料制备与加工重点实验室,北京,100029

4.北京化工大学北京市,新型高分子材料制备与加工重点实验室,北京,100029

基金项目: 国家高技术研究发展计划(863计划)(2001AA335030)

关键词：聚苯并(噁)嗪 , 碳纤维 , 界面 , 力学性能

INVESTIGATION ON RELATIONSHIP BETWEEN INTERFACIAL AND MECHANICAL PROPERTIES OF CARBON FIBER/POLYBENZOXAZINE COMPOSITES

本文采用含不同上胶剂的碳纤维与苯并(噁)嗪树脂复合,制备碳纤维/聚苯并(噁)嗪单向复合材料,研究了碳纤维表面上胶剂对于复合材料的层间剪切强度(ILSS)、弯曲性能、断口形貌及动态机械性能的影响.结果表明,含有环氧树脂上胶剂的碳纤维/苯并(噁)嗪树脂基复合材料(EPCF/PBZ)的ILSS和弯曲性能优于含非环氧类树脂上胶剂的碳纤维/苯并(噁)嗪树脂基复合材料(VECF/PBZ)和不含上胶剂的碳纤维/苯并(噁)嗪树脂基复合材料(USCF/PBZ).环氧树脂上胶剂改善了纤维与苯并(噁)嗪树脂的粘结性能,使复合材料的内耗峰峰高降低,能量损耗减小.电镜照片同样验证了这一结果.

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