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用自制的二烷基二硫代磷酸和NdCl3为原料 ,通过交换反应制备了二异辛基二硫代磷酸钕和二异丙基二硫代磷酸钕 ,并鉴定了其结构。以四球实验比较了所合成的两种二烷基二硫代磷酸钕作为抗磨减摩剂的抗磨减摩性能 ,并与现在普遍使用的抗磨剂ZDDP进行了比较。以电子衍射X射线能谱 (EDXA)分析了经四球机实验磨损 10s后的蚀球表面元素组成 ,初步认证了稀土元素扩渗进入摩擦副表面是此类稀土配合物具有比ZDDP更好的抗磨减摩作用的原因之一。
Using dialkyldithiophosphoric acid and NdCl3 as raw materials, neodymium diisooctyl dithiophosphate and neodymium diisopropyldithiophosphate were prepared by the exchange reaction. The structures of the compounds were characterized. The anti-wear and friction-reducing properties of two kinds of neodymium dialkyldithiophosphate synthesized as anti-friction and antifriction agent were compared by four-ball experiment and compared with ZDDP which is commonly used antiwear agent. The elemental composition on the surface of the etched ball after 10s abrasion with a four-ball machine was analyzed by EDXA. It was initially verified that the rare earth elements infiltrated into the surface of the friction pair is a better anti-ZDDP One of the reasons grinding friction reduction role.