碱金属硼酸盐的摩擦学性能及其与无灰抗氧剂的抗氧化协同作用机理研究

润滑油的抗磨作用和抗氧化作用是所有润滑剂都必须具备的性质，随着机械工业的发展，迫使润滑油必须具有越来越高的氧化安定性。在目前使用的润滑油中加入本身不具有抗氧活性的碱金属盐，可以提高胺型抗氧化的氧化安定性。本课题拟选择不同的酚羟基和含氮杂环醇取代油溶性差的无机硼酸盐中的羟基制备碱金属硼酸盐,借助计算化学对其空间结构进行优化,找出羟基取代基的结构与碱金属硼酸盐油溶稳定性关系,同时选择模型化合物对其摩擦学机理和抗氧化机理进行深入研究,并且利用计算化学从根本上研究碱金属硼酸盐的结构与无灰抗氧剂在抗氧化协同作用机理。将硼元素和酚羟基以及含氮杂环有机结合,利用它们之间活性元素的复配,使新型碱金属硼酸盐的抗氧化性能、摩擦学性能和油溶稳定性得到很大的改善,并且又能与无灰抗氧剂起到协合抗氧化效应,从而为实际生产此类高效的多功能添加剂提供一定的理论基础，并且丰富杂环化学和有机硼化学在润滑功能材料中的内容。

The antiwear and antioxidation effect are the necessary properity of all lubricant. Along with the development of the mechanical industry，there are increasing more demand for oxidation stability of lubricant. It can improve the oxidation stability of amine type antioxidant in lubricating oil by adding some alkali metal salt which have no antioxidant activity. Some different phenolic group and N-containing heterocyclic alcohol have been choosed to replace hydroxyl of inorganic borate which is poor in oil solubility, to synthesis alkali metal borate. And the chemical structure and space structure will be optimized by calculating chemistry, to find out the oil-solubility stability relationship between the hydroxyl substituents structure and alkali metal borate, and to study the tribological and antioxidation mechanism by selected the model compounds, and to study the synergy effect between different structure alkali metal borate and ashless antioxidants in the oxidation mechanism by using computational chemistry in fundamentally. It will improve the tribological property, oil-solubility stability and antioxidant property of novel alkali metal borate, which organically blends boron element with phenolic group and N-containing heterocyclic, and using their active elements, so it will have synergistic effect with ashless antioxgen in antioxidation performance, and it will provide certain theoretical basis for real production of such efficient multifunctional additive, and it will also rich the material content of heterocyclic chemical and organic boron chemistry in the lubrication function material.