剑麻纤维/硅灰石混杂增强摩擦制动材料的性能  

Properties of Sisal Fiber/Wollastonite Hybrid Reinforced Friction Brake Materials

作　　者：熊雪梅[1] 韦春[1] 曾铭[1] 

机构地区：[1]桂林理工大学有色金属及材料加工新技术教育部重点实验室,材料科学与工程学院,广西桂林541004

出　　处：《高分子材料科学与工程》2011年第7期46-49,共4页Polymer Materials Science & Engineering

基　　金：国家973计划前期研究专项(2008CB617513);国家自然科学基金资助项目(50763001);广西自然科学基金资助项目(桂科自0728223);广西应用基础研究专项(桂科基0836016);广西研究生教育创新项目(2009105960305M13)

摘　　要：选用纳米粒子改性酚醛树脂为基体,以剑麻纤维和硅灰石混杂为增强纤维,制备了无石棉复合摩擦材料。采用D-MS定速摩擦机对样品进行定速试验,利用扫描电镜对磨损表面进行分析,研究了剑麻纤维/硅灰石不同配比对摩擦材料性能的影响。结果表明,当剑麻纤维和硅灰石的配比为1∶2时,该摩擦材料的力学性能较好,摩擦系数稳定在0.40.5之间,具有较好的耐磨性能,达到了汽车制动器衬片GB5763-1998的规定要求。By using phenol formaldehyde resins modified with nano-SiO2 as matrix,using surface-treated sisal fiber and wollastonite as reinforcement,we prepared the asbestos-free friction material.The friction and wear properties were investigated on constant speed（D-MS） tester.And the abrasion surfaces of composites were observed by scanning electron microscope（SEM）.The result shows that all the properties,such as,friction coefficient and wear rate can meet the GB5763-1998 requirement.When the sisal fiber and wollastonite hybrid ratio is 1∶2,the composite has the high mechanical properties,suitable and stable coefficient of friction and relatively low wear rate especially at high temperature.

关 键 词：剑麻纤维 硅灰石 混杂增强 摩擦磨损 耐热性 

分 类 号：TQ314.262[化学工程—高聚物工业]