聚氯乙烯包覆处理竹纤维对其增强摩擦材料摩擦学性能的影响Effect of PVC-coated bamboo fiber on tribological performance of its reinforced brake composites
何福善,高诚辉,林有希,郑开魁
摘要(Abstract):
采用聚氯乙烯(PVC)包覆法处理竹原纤维,并将其应用于增强树脂基摩擦材料。通过定速摩擦试验、表面形貌观察及能谱分析、热失重分析等方法探讨PVC包覆处理竹纤维对其增强摩擦材料摩擦学性能的影响。结果表明,竹纤维经过PVC包覆处理后,能显著提高摩擦材料的整体摩擦学性能,尤其是中高温的摩擦因数。PVC溶液质量浓度为20 g/L,处理时间为20 min,材料具有良好的综合摩擦磨损性能。PVC包覆处理后竹纤维表面可形成一层均匀的PVC复合界面膜,使复合材料中竹纤维和树脂基体的界面黏结性能得到改善,令竹纤维在较高温度下仍然能对基体起到增强作用,提高了材料的摩擦磨损性能。
关键词(KeyWords): 竹纤维;PVC包覆处理;摩擦材料;摩擦学性能
基金项目(Foundation): 国家教育部博士生导师基金(20113514110006);; 国家自然科学基金面上项目(51075074)
作者(Author): 何福善,高诚辉,林有希,郑开魁
DOI: 10.13289/j.issn.1009-6264.2015.03.004
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