【摘要】 研制了几种不同烷基结构的二烷基二硫代磷酸钼（ＭｏＤＤＰ），并对其理化性能、对成品油的感受性能及实际使用性进行了研究。试验表明，加入ＭｏＤＤＰ后的成品油具有良好的感受性，在行车试验中，可延长换油期，提高发动机各部件的使用寿命。更多还原

【Abstract】 We develope saveral kinds of MODDP of different structures, and study on its physical chemical properties, sensibility to product oil and service use property. The experiments showed that: It has a good sensibility after putting in product oil of MODDP. During the driving trial, it can prolong drain period and improve the derability of each pant of the engine.更多还原