两种有机钼化合物的减摩抗磨性能研究

本文在四球摩擦磨损试验机上考察了自制的两种有机钼化台物——二烷基二硫代磷酸钼的摩擦磨损性能,并且利用元素分析、红外光谱及热分析手段对它们进行了物性表征,同时还推测出了两者的化学结构。文章指出,添加1％有机钼可使基础油的抗擦伤负荷提高1倍以上,摩擦系数降低40—60％,表明油溶性有机钼是一种减摩、抗磨性能良好的润滑油添加剂。

The Friction Reducing and Antiwear Properties of Two Organic Molybdenum Compounds

Two organic molybdenum compounds, molybdenum di-2-ethylhaxyloxydi thiophosphate CYM-1 and YM-2) were synthesized and characterized by means of element analysis, infrared spectrum and ther-mogravimetric analysis, their molecular formulas are also determined as follows: where, R is alkyl with more than 8 C atoms. The antiwear and friction reducing properties of two organic molybdenum compounds were tested on Model STAN-Shell four ball tester (the test conditions: 1500rpm, room temperature, 30 minutes, 392N of load) 5 anti-galling load (PB Value) was also determined according to the GB 3142-82 method. The test results are shown as follows: a. The friction coefficient of basic oil containing organic molybdenum compound is reduced by 40-60% comparing to that of basic oil. b. The adding amount of additives is an influencing factor to the friction property of oil, integrating the load carrying capacity friction reducing and antiwear ability,the suitable content of organic molybdenum additive is 1-2 % . c. The PB value has a 2-fold increase after adding 1% YM-1 or YM-2 to 10 basic oil, 10 engine oil and 10W-30 oil. d. The organic molybdenum compounds(YM-1 or YM-2) used in combination with additive T202 perform well with excellent anti-galling pro-perties.