海水组分对海水润滑性能的影响

聚四氟乙烯

海水组分对海水润滑性能的影响
Influence of Seawater Constituents on the Lubrication Effect of Seawater

作　　者：王建章[1] 陈贝贝[1,2] 阎逢元[1]

Wang Jianzhang,Chen Beibei,Yan Fengyuan（ 1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences,  Lanzhou Gansu 730000, China;2. Graduate School of Chinese Academy of Science, Beijing 100049, China）

机构地区：[1]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000 [2]中国科学院研究生院,北京100049

出　　处：《润滑与密封》 CAS CSCD 2011年第36卷第11期 1-5页,共5页

Lubrication Engineering

基　　金：863资助项目（2009AA032105）;国家自然科学基金项目（50823008）.

摘　　要：通过研究聚四氟乙烯／Ni-P合金涂层在海水及其各组分溶液润滑下的摩擦学行为，探讨海水与纯水润滑性能的差异，并分析海水各组分对于其润滑性能的影响。结果显示：PTFE／Ni—P体系的摩擦因数与PTFE的磨损率在二价金属盐（MgCl2＋CaCl2＋SrCl2）溶液润滑下最小，在海水润滑下次之，而在纯水润滑下则最大。这说明：海水具有比纯水更优异的润滑性能，海水中所溶解的各种溶质有利于海水的润滑作用；二价金属盐，主要是Ca^2＋与Mg^2＋，是海水润滑作用的决定因素。

Based on the investigation on the tribological behaviors of PTFE/Ni-P coating under the lubrication of seawater and the solutions of seawater constituents, the difference of lubrication effect between seawater and pure water was discussed, and the influence of seawater constituents on the lubrication effect of seawater was elucidated. The results show that the friction coefficient of PTFE/Ni-P and the wear rate of PTFE under the lubrication of （ MgCI2 ＋ CaC12 ＋ SrC12 ） solution are the lowest, followed by under the lubrication of seawater, whereas they are the largest under the lubrication of pure water. This indicates that seawater has better lubrication effect than pure water, and the solutes dissolved in seawater are beneficial to the lubrication effect of seawater;the lubrication effect of seawater depends on the bivalent metal salts therein, mainly Ca^2＋ and Mg^2＋.

关 键 词：聚四氟乙烯 Ni—P合金涂层 海水 组分 润滑
PTFE Ni-P alloy coating seawater constituents lubrication
分 类 号：TH117.1 [工业技术 > 机械、仪表工业 > 机械学（机械设计基础理论） > 机械摩擦、磨损与润滑]

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