不同条件下不同尼龙的摩擦磨损性能

Friction and Wear Properties of Different Nylon Under Different Conditions

分别制备了MC尼龙、含5%(质量分数)润滑油的MC油尼龙及35%(体积分数)碳纤维增强的复合MC尼龙,研究了3种尼龙在干摩擦、洁净水、干砂、水砂条件下的摩擦磨损性能。结果表明:MC油尼龙表面由于存在润滑油膜,4种条件下的摩擦因数和磨损率均最小;干摩擦和水润滑条件下,复合MC尼龙表面的纤维凸起使其磨损率和摩擦因数均较MC尼龙的小;水润滑下的尼龙磨损程度均较干摩擦下的小;干砂和水砂条件下,石英砂的犁削作用使MC尼龙表面出现较多犁沟,M C油尼龙表面由于存在润滑油膜,仅出现少量犁沟。水砂条件下的尼龙磨损程度均较干砂条件下的小。

MC nylon,MC oil nylon containing 5%(mass fraction) of lubricating oil,and carbon fiber reinforced compound MC nylon containing 35%(volume fraction) of carbon fiber were prepared.The friction and wear performance of three kinds of nylon under dry friction,clean water,dry sand,and water sand conditions were studied.The results show that the friction factor and wear rate were the smallest of MC oil nylon under the four conditions due to the existence of lubricant film on the surface.Under the conditions of dry friction and water lubrication,the fiber protrusions on the surface of compound MC nylon made the wear rate and friction factor smaller than that of MC nylon.The degree of wear of nylon under water lubrication were lower than that under dry friction.Under the conditions of dry sand and water sand,the ploughing effect of quartz sand caused more furrows appeared on the surface of MC nylon.Only a few furrows appeared on the surface of MC oil nylon due to the lubricant oli film on the surface.The degree of wear of nylon under water sand conditions was lower than that under dry sand conditions.