新型固体润滑及油品添加剂-硫代钼酸盐的制备

New Kind of Solid Lubricant and Oil Additive-Preparation of Oxythiomolybdate and Investigation of the Tribological Property

研究了在水溶液中合成新型固体润滑兼油品添加剂一ＮｉＭｏＯ２Ｓ２及其原料（ＮＨ４）２ＭｏＯ２Ｓ２的条件，其最佳参数为ｐＨ＝４～５，温度为３０℃左右和ｐＨ＝７～９；温度为－５～０℃．还对产品的组成、结构及形貌进行了分析观察，并验证了ＮｉＭｏＯ２Ｓ２作为油品添加剂和固体润滑剂从２０～６００℃的减摩性能；证实硫代钼酸镍是一种宽温度范围的润滑剂．

The process of chemical synthesis of a new kind of solid lubricant and oil additive-nickel oxythiornolybdate and one of its precursor material ammonium oxythiomolybdate were studied. Their composition, structure and morphology were investigated by chemical analysis, X-ray diffraction, electron microprobe and SEM. The results obtained show that their optimum parameters for synthesizing are: pH=4 similar to5, T=30 degreesC, and pH=7 similar to9, T=-5 similar to0 degreesC. NiMoO2S2 as a solid lubricant and an oil additive from 20 degreesC to 600 degreesC has good tribological behaviors, and can be regarded as a new kind of lubricant applied in a wide temperature range.