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碳纳米管纤维/环氧树脂复合材料的界面剪切强度及微观结构

, PP. 1206-1211

Keywords: 碳纳米管纤维,环氧树脂,拉伸性能,界面剪切强度,微观结构

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Abstract:

研究了碳纳米管纤维的微观结构和拉伸性能,并进一步分析了其与环氧树脂形成界面剪切强度及微观结构。采用单丝断裂试验测试了碳纳米管纤维/环氧树脂复合材料体系的界面剪切强度,结合单丝断裂过程中的偏光显微镜照片、复合材料的拉曼谱图和断口扫描电镜照片,研究了碳纳米管纤维/环氧树脂复合材料界面的微观结构。结果表明:碳纳米管纤维/环氧树脂复合材料的界面剪切强度约为14MPa;在碳纳米管纤维和环氧树脂形成界面的过程中,环氧树脂可以浸渍纤维,形成具有一定厚度的复合相,这种浸渍过程和界面相的形成都有利于碳纳米管纤维与基体之间的连接。

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