PDSC法研究抗氧剂与金属清净剂在润滑油中的复配使用规律  

Study on the Compounding Rule of Antioxidants and Metal Detergents in Lubricating Oil by PDSC

作　　者：李涛[1] 薛卫国[1] 刘玉峰[1] LI Tao;XUE Wei-guo;LIU Yu -feng(PetroChina Lanzhou Lubricating Oil R＆D Institute, Lanzhou 730060, Chin)

机构地区：[1]中国石油兰州润滑油研究开发中心,甘肃兰州730060

出　　处：《润滑油》2018年第3期36-39,共4页Lubricating Oil

摘　　要：用高压差示扫描量热法(PDSC)对抗氧剂和金属清净剂复配使用在基础油中的氧化性能进行了研究,结果表明,抗氧剂与金属清净剂复配使用后,氧化诱导期时间(OIT)增长,胺类抗氧剂与烷基水杨酸钙金属清净剂复配使用,氧化诱导期时间提高幅度大;且酚类和胺类抗氧剂同时使用时,氧化诱导期时间提高幅度更高,说明油品的抗氧化安定性能表现更佳,同时表明油品配方中胺类、酚类两种抗氧剂与烷基水杨酸钙金属清净剂同时使用可以大幅度提高油品的性能。The oxidation performance of compounding of antioxidants and metal detergents in base oil was studied by pressure differential scanning calorimetry（ PDSC）. The results show that the oxidation induction time（ OIT） extends when the antioxidants and metal detergents are used together. When the amine type antioxidants and the calcium alkyl salicylate metal detergents are compounded,the OIT extends greatly. When phenol and amine type antioxidants are used at the same time,the OIT extends by a greater margin,which indicates that the oil has better antioxidant stability. The results also show that the performance is substantially improved when both two kinds of antioxidants are used with calcium alkyl salicylate metal detergents in the oil.

关 键 词：高压差示扫描量热法 抗氧剂 金属清净剂 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]