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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 被引量:4

Effect of PVC-coated bamboo fiber on tribological performance of its reinforced brake composites
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摘要 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。 Bamboo fiber was treated by PVC coating,and applied to reinforce resin matrix friction composite. The effects of PVC coating on tribological performance of bamboo fiber reinforced composites were investigated by the constant speed friction test,SEM observation,energy dispersive spectroscopy( EDS) and thermogravimetry( TG) analysis. The results show that,the PVC coated bamboo fibers can significantly improve the tribological properties of friction materials,especially the friction coefficient at elevated temperature. The samples treated by 2% PVC solution for 20 min have excellent friction and wear properties. Bamboo fibers PVC coated form an uniform PVC composite layer on the surface,which enhances the interface bonding capacity between bamboo fiber and resin matrix. The coated bamboo fibers can reinforce the substrate at elevated temperature,so that the tribological performance of the composite is improved.
作者 何福善 高诚辉 林有希 郑开魁 HE Fu-shan;GAO Cheng-hui;LIN You-xi;ZHENG Kai-kui;School of Mechanical Engineering and Automation,Fuzhou University;
出处 《材料热处理学报》 EI CAS CSCD 北大核心 2015年第3期21-26,共6页 Transactions of Materials and Heat Treatment
基金 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)
关键词 竹纤维 PVC包覆处理 摩擦材料 摩擦学性能 bamboo fiber PVC coating friction materials tribological performance
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