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多壁碳纳米管改性氰酸酯/环氧树脂基纳米复合材料的力学性能*

Keywords: 复合材料,碳纳米管,力学性能

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Abstract:

?用强酸氧化法与等离子体镀膜法分别对原始多壁碳纳米管(mwcnts)进行表面修饰,制备了mwcnts改性氰酸酯/环氧树脂基纳米复合材料。对复合材料的断裂面进行sem分析,研究了表面处理方法对复合材料室温及低温力学性能的影响。结果表明,经等离子体镀膜表面修饰后的mwcnt在基体中分散更为均匀,与基体的界面结合力更强。经等离子体镀膜表面改性后的mwcnts复合材料,当mwcnts质量分数为0.3%时,其室温及低温拉伸强度、弹性模量和冲击强度较纯氰酸酯/环氧树脂基体均有不同程度的提高。

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