摘要
文中应用31 P NMR技术考察了CD/SF 5W / 3 0通用内燃机油中二烷基二硫代磷酸锌 (ZDDP)添加剂在行车试验条件下的氧化降解机理。研究结果表明 ,ZDDP的氧化降解 ,首先是形成硫代磷酸酯以及硫代磷酸盐 ,其最终氧化降解产物是磷酸酯 (盐 )。
The degradation of ZDDP in CD/SF 5W/30 engine oil during field test was investigated by ~31P-NMR spectroscopy. The results show that the process of the degradation of ZDDP can be divided into two steps, and dithiophosphate as well as thiophosphate are formed first and finally is phosphate. The main reason resulting in the invalidation of engine oil is the degradation of ZDDP additive.
出处
《北京化工大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第1期106-108,共3页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
基金
总后物资油料部项目(油990106)
