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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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表面改性对碳纤维/酚醛树脂基复合材料摩擦性能的影响
Keywords: 复合材料,偶联剂,表面改性,碳纤维,摩损率
Abstract:
？使用浓硝酸和硅烷偶联剂(hk550)对pan基碳纤维(3k)进行表面改性,以酚醛树脂为基体制备复合材料,使用扫描电子显微镜(sem),傅里叶变换红外光谱(ftir),和x射线光电子能谱(xps)等手段研究了碳纤维的结构和表面特性。用拉伸试验机测量了复合材料的拉伸强度,用微纳米力学综合测试系统(unmt-1)测量了复合材料的摩擦性能。结果表明,用浓硝酸和偶联剂处理可提高碳纤维表面的粗糙度和化学活性,可改善碳纤维与酚醛树脂基体之间的界面结合,使复合材料的拉伸强度提高、磨损率降低。
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