摘要
采用多壁碳纳米管(MWNTs)为改性剂,对环氧树脂/双酚A型氰酸酯树脂体系进行增韧改性。以该改性体系制备了碳纳米管改性氰酸酯树脂/碳纤维复合材料。研究了MWNTs加入量对复合材料力学性能的影响,利用动态力学分析仪和扫描电子显微镜分别对该复合材料的耐热性及微观形貌进行了分析。结果表明,MWNTs的加入能明显地改善复合材料的耐热性和力学性能,当MWNTs的含量为1份和1.5份时,复合材料的层间剪切强度和弯曲强度分别提高约31%和23%。
The epoxy resin/bisphenol A type cyanate ester system was modified by using multiwall nanotubes （MWNTs） as modifier, and a modified cyanate ester/carbor fiber composite was prepared by using the system. The effects of the mass fraction of MWNTs on the mechanical property of the composite were studied, and the thermostability and microcosmic morphology of the composite were analysed with DMA and SEM. The results showed that the addition of MWNTs improved thermal stability and mechanical properties of the composite remarkably. When the mass fraction of the MWNTs was 1 Phr and 5 Phr, the shear strength and the flexural strength increased by 31% and 23% respectively.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2007年第4期15-17,共3页
Engineering Plastics Application
基金
教育部高等学校博士学科点专项科研基金项目(20050699034)
西北工业大学创新种子基金项目(Z200670)
