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中文摘要：
研究了聚乙烯吡咯烷酮（polyvinyl pyrrolidone,PVP）、油酸（olei cacid,OA）和硅烷偶联剂（r–缩水甘油氧基丙基三甲氧基硅烷,KH560）3种分散剂表面修饰的蛇纹石粉体在基础油500SN中的分散性能,并对3种分散剂修饰的超细蛇纹石粉体作为添加剂加至基础油中,在四球摩擦副上做摩擦磨损性能的测试。结果表明：不同分散剂在基础油500SN中分散效果从高到低依次为：OA〉PVP〉KH560;OA,PVP和KH560修饰的蛇纹石粉体的油润滑添加剂的磨斑直径分别降低了17%,4.26%和12.8%,摩擦系数分别减小了35.5%,2.48%和16.9%。OA添加剂的磨斑表面生成了修复镀层。
英文摘要：
An investigation of dispersion properties of ultra-fine serpentine modified by three dispersants： polyvinyl pyrrolidone （PVP）, oleic acid （OA） and silane coupling agent （KH560） in 500SN base oil was investigated. The ultra-fine serpentine specimens with three different surfactants were considered as different additives in the base oil and tribology tests were carried out using a fiiction-wear tester. The results show that effect of the three surfactants on the dispersion property in the base oil 500SN decreases according to this order： OA〉PVP〉KH560. The wear scar diameter of the OA, PVP and KH560 additives decrease by 17%, 4.26% and 12.8%, respectively. The friction coefficients of OA, PVP and KH560 decrease by 35.5%, 2.48% and 16.9%. The fiiction surface of the OA additive forms a repair coating.
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