【摘要】 制备了两种苯并噻唑衍生物2-苯并噻唑基-巯基硫代乙酸正辛酯(MBTT)和2-苯并噻唑基-巯基乙酸正辛酯(MBTA),并用元素分析和核磁共振谱表征其分子结构.用X光吸收近边结构谱(X-ray absorption near edge structure,XANES)全面地分析了杂环化合物在矿物油和菜籽油中所形成的摩擦膜和热膜的化学态.分析结果表明,在矿物油中,添加剂MBTT和MBTA摩擦反应生成的摩擦膜主要由FeS2组成,而菜籽油中,两种添加剂摩擦反应生成的摩擦膜由FeSO4组成;在两种基础油中,两种添加剂生成的热膜都是由FeSO4组成的.更多还原

【Abstract】 Two kinds of 2-mercaptobenzothiazole derivatives MBTT and MBTA are synthesized, which are characterized by means of element analysis and 1H NMR. X-ray absorption near edge structure(XANES) spectroscopy was used to analyze the chemical structure of both thermal films and tribofilms. To our know-ledge, this would be the first comprehensive study where XANES were used to examine the tribofilms and thermalfilms from heterocyclic compounds. According to the XANES analytic results, in mineral oil, the tribofilms generated from two additives MBTT and MBTA are composed of FeS2. However, in RSO, the corresponding tribofilms are composed of FeSO4. The thermalfilms are composed of FeSO4 in both mineral oil and RSO.更多还原