KH-550改性钢纤维对半金属摩擦材料摩擦学性能的影响  

Effect of KH-550 Modified Steel Fiber to The Tribology Capability of Semimetal Friction Material

作　　者：李国庆[1] 曹阳[1] 周元康[1] 聂华伟[1] 朱文祥[1] 

机构地区：[1]贵州大学机械工程学院,贵州贵阳550003

出　　处：《非金属矿》2011年第5期75-78,共4页Non-Metallic Mines

基　　金：贵州大学自然科学青年科研基金(贵大自青基合字[2010]053号);贵州大学研究生创新基金资助项目(校研理工2011028)

摘　　要：使用硅烷偶联剂对半金属摩擦材料中的钢纤维组分进行表面改性,促使该组分能够更好地与基体树脂融合,以进一步改善其摩擦磨损性能。研究了硅烷偶联剂KH-550对钢纤维改性的方法,用WGH-30/6红外分光仪进行了改性效果评判,并将改性钢纤维作为半金属摩擦材料的主要增强组分制备出摩擦材料试样,按照GB5763-98标准在XD-MSM定速式摩擦试验机上进行了摩擦磨损性能对比测试,对测试结果进行了机理分析。研究结果表明:半金属摩擦材料中的钢纤维经过硅烷偶联剂KH-550表面改性处理后,平均摩擦因数上升10%且比较稳定,平均磨损率下降30%,在高温350℃时,磨损率下降了约47%。In order to promote the steel fiber to better integration with the matrix resin in the semi-metallic friction materials and further improve its friction and wear performance, we modified the surface of steel fiber by silane coupling agent. We researched the process of silane coupling agent KH-550 modified steel fiber and assessed the modification effect by WGH-30/6 infrared spectrophotometer and got the modified steel fiber as the main enhance components to produce friction material sample, the frictional wear performance contrastive test was according to the GB5763-98 standard by a XD-MSM constant speed friction testing machine and we did the mechanism analysis of test result. The results showed that： if the surface of the steel fiber of Semi-metallic friction material was modified by silane coupling agent solution, the average friction coefficient increased by 10 % and be relatively stable, the average wear rate would decrease by 30 %, especially at high temperature 350 ℃, the wear rate dropped by 47 %.

关 键 词：硅烷偶联剂 钢纤维 表面改性 摩擦因数 磨损率 

分 类 号：O313.5[理学—一般力学与力学基础]