聚乙烯吡咯烷酮超滑行为研究  

Study on Superlubricity Behavior of Polyvinylpyrrolidone

作　　者：吴行阳[1] 王少卿 WU Xingyang;WANG Shaoqing

机构地区：[1]上海大学机电工程与自动化学院

出　　处：《计量与测试技术》2023年第12期7-11,共5页Metrology & Measurement Technique

基　　金：国家自然科学基金(项目编号:52275203)。

摘　　要：超滑(摩擦系数小于0.01)系统具有极低的能耗,受到了广泛的关注。本文研究了聚乙烯吡咯烷酮(PVP)水溶液在氮化硅陶瓷、蓝宝石盘之间的润滑性能。结果表明:聚乙烯吡咯烷酮水溶液可在磨合或使用酸溶液预磨合后,达到超滑状态;PVP可较好的保护滑动表面降低磨损,并通过摩擦化学反应、流体动压润滑效应,有效减少摩擦系数,在边界润滑和混合润滑的条件下实现超滑。Ultra-slippery(coefficient of friction less than 0.01)systems have very low energy consumption and have received a lot of attention.In this paper,the lubrication properties of polyvinylpyrrolidone(PVP)aqueous so-lution between silicon nitride ceramic and sapphire disk were studied.The results show that the aqueous solution of polyvinylpyrrolidone can reach superslippery state after running-in or pre-running-in with acid solution.PVP can better protect the sliding surface to reduce wear,and effectively reduce the friction coefficient through tribo-chemical reaction and hydrodynamic lubrication effect,and achieve super slip under the conditions of boundary lu-brication and mixed lubrication.

关 键 词：超滑 聚乙烯吡咯烷酮 水基润滑 摩擦化学反应 流体动压润滑 

分 类 号：TH117.2[机械工程—机械设计及理论]