二烷基二硫代磷酸锌的热分解机理及其抗氧化性能的研究  

STUDY ON THERMAL DECOMPOSITION AND ANTIOXIDATIVE PERFORMANCE OF ZINC DIALKYLDITHIOPHOSPHATE

作　　者：魏建军[1] 薛群基[1] 

机构地区：[1]中国科学院兰州化学物理研究所固体润滑开放研究实验室

出　　处：《石油炼制》1991年第11期27-32,共6页

摘　　要：运用 DSC、IR 和 NMR 分析技术研究了二烷基二硫代磷酸锌(ZDDP)的热分解机理及其抗氧化性能。结果表明,ZDDP 热分解历程为:由分子内异构化反应,导致β-氢原子内消除反应及亲核取代反应,经一系列复合反应生成各种最终产物。ZDDP 热分解产物是其抗氧化作用的主要成分。DSC,IR and NMR were used to study the mechanism of the thermal deco-mposition of zinc dialkyldithiophosphate(ZDDP)and its antioxidative perfor-mance.The results show that,as temperature increases,inter-molecular iso-merization occurs and is followed by competitive reaction between β-hydrogenelimination and nucleophilic substitution.Various final decomposition productsare formed by a series of complicated reactions.It is also found that the decom-position products of ZDDP are the main components contributing to its anti-oxidative performance.

关 键 词：ZDDP 热解 抗氧剂 DSC IR NMR 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]