表面修饰的硼酸盐添加剂与ZDDP复配的摩擦性能

用四球摩擦磨损试验机研究了表面修饰的硼酸盐添加剂与一些抗磨减摩剂复配体系的摩擦学性能。结果表明，表面修饰的用酸盐与T202复配，其复配体系的抗磨性受其添加量的影响，而与T203或T205复配体系的抗磨性分别产生对抗效应或协同效应。表面修饰的硼酸盐与ZDDP系列添加剂复配体系的减摩性，与ZDDP相比没有明显的改善，但是加人苯三唑衍生物，复配体系的摩擦系数明显降低。摩擦表面的XPS分析表明，摩擦表面生成了BON化合物、BN、硫酸盐、磷酸盐、硫化物、氧化物的混合的摩擦化学反应膜。

TRIBOLOGICAL PROPERTIES OF THE COMBINATION SYSTEM OF THE SURFACE MODIFIED BORATE AND ZDDP

The tribological performances of the combination systems of the surface modified borate and ZDDP additive were investigated by using four-ball tester. The results showed that the added amount of T202 could affect on the antiwear properties of the combination systems. The synergistic effect mechanism was observed when the added amount of T202 was equal to or more than 0. 5 wt%. The antiwear properties of the combination systems of the surface modified borate and T203 or T205 could produce antigenic or synergistic effect. In comparison with ZDDP additive alone, the friction coefficient of the combination systems did not reduce obviously, however, the N-containing compound addition could improve the anti-friction propeties of the combination systems of the surface modified borate and T202. X-ray photoelectron spectroscopy analysis indicated that a tribochemical mixed film was formed on the rubbing surface of the combination systems, which consisted of BON compounds, BN, phosphate, sulphides, sulphates and oxidate.