陶瓷粉填充尼龙1010的摩擦磨损性能研究  

Investigation on Tribological Behaviors of Nylon 1010 Filled with Ceramic Powders

作　　者：刘利国[1] 葛世荣[1] 王庆良[1] 

机构地区：[1]中国矿业大学材料科学与工程学院,江苏徐州221008

出　　处：《摩擦学学报》2005年第6期540-544,共5页Tribology

基　　金：国家杰出青年基金资助项目(50225519)

摘　　要：以微米级有机陶瓷粉末为增强材料,用KH-550硅烷偶联剂对陶瓷粉末进行表面处理制备出陶瓷/尼龙复合材料,在环-块摩擦磨损试验机上评价了陶瓷/尼龙复合材料与钢配副的摩擦磨损性能,并对其力学性能进行测试.结果表明:陶瓷粉末含量在5%～25%时,陶瓷/尼龙1010复合材料的摩擦系数增至0.46左右,当陶瓷粉末含量为30%～40%时,其摩擦系数降至0.41;含5%～40%陶瓷粉末的陶瓷/尼龙1010复合材料的相对磨损率为纯尼龙相对磨损率的26%～42%;陶瓷粉末填充尼龙可以提高复合材料的力学性能,其表面硬度随着陶瓷粉含量增加而呈线性增长,拉伸强度提高16.7%;硅烷偶联剂能够改善陶瓷粉末与尼龙基体的结合强度.这是由于复合材料表面熔融和粘着转变为浅的犁沟,致使陶瓷/尼龙1010复合材料的相对磨损率减小.Trihological and tensile properties of nylon 1010 composite, filled with micro scale ceramic powder with surface treatment by silane coupling agents （KH-550）, was investigated. Ceramic powders increased friction coefficient of the composite as well as decreased wear rate, and it also improved the composite＇s tensile strength in a certain range of contents. Ring on block tests show that ceramic/nylon composite with 5%-25% ceramic powder exhibited friction coefficient as high as 0. 46, and friction coefficient decreased to O. 41 when containing 30%-40% ceramic powder. Ceramic/nylon composite with 5% -40% ceramic powder exhibited lower wear rate which is only 26%-42% of that pure nylon did. Ceramic powder improves nylon＇s mechanical properties, and its surface hardness increased linearly as fraction of ceramic powder increased. Ceramic powder increase tensile strength by 16. 7% due to better bonding between ceramic powder and nylon. Ceramic/nylon composite exhibited lower wear rate because some surface nylon melted and shallow grooves formed instead of adhesion dominated in wear of pure nylon.

关 键 词：尼龙1010 陶瓷粉 摩擦磨损性能 力学性能 

分 类 号：TH117.3[机械工程—机械设计及理论]