几种噻二唑二聚体衍生物的摩擦学性能研究

合成了3种噻二唑二聚体衍生物。采用红外光谱仪对其结构进行了表征；用四球摩擦磨损试验机考察了其在蒸馏水中的摩擦学性能；用X射线光电子能谱仪（XPS）分析了磨斑表面典型元素的化学状态。结果表明，添加剂在水中具有优良的承载能力和极压性能，并在一定程度上改善了水的抗磨减摩性能；在摩擦过程中，磨斑表面形成了含氮的吸附膜和含Fe2O3，FeS，FeSO4的化学反应膜，二者协同作用使添加剂在摩擦过程中具有良好的抗磨减摩性能。

TRIBOLOGICAL BEHAVIOR OF THIADIAZOLE DIMER DERIVATIVES

Three thiadiazole dimer derivatives (TDD-7，TDD-10 and TDD-15) were synthesized and their structures were characterized by FT-IR. The tribological properties of these derivatives used as additives in distilled water were evaluated with a four-ball machine, and the chemical states of some typical elements on the worn surface were analyzed by XPS. Results indicated that these additives possessed excellent load carrying capacity and extreme pressure property in distilled water, and the antiwear and friction reducing performance of distilled water with additives were improved in some extent. Among these three additives, TDD-10 exhibited the best load carrying capacity and TDD-15 exhibited the best antiwear performance. The improved tribological behavior of distilled water by these additives could be attributed to the formation of adsorption film containing nitrogen, chemical reaction film containing Fe2O3, FeS and FeSO4, and the synergetic effect of these two types of films led to a further improvement.