烟炱分散型多功能黏指剂的合成与性能  

Synthesis and property of soot dispersed multifunctional viscosity index improver

作　　者：安文杰[1] 王黎川 张明辉 陈平勇 罗意[1] 张创 AN Wen-jie;WANG Li-chuan;ZHANG Ming-hui;CHENG Ping-yong;LUO Yi;ZHANG Chuang(PetroChina Lanzhou Lubricating Oil R&D Institute,Lanzhou 730060,Gansu,China;PetroChina Xiamen Lubricant Marketing Branch,Xiamen 361100,Fujian,China;PetroChina Northwest Lubricating Oil Branch,Lanzhou 730060,Gansu,China;College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,Gansu,China)

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 [2]中国石油厦门润滑油分公司,福建厦门361100 [3]中国石油西北润滑油分公司,甘肃兰州730060 [4]西北师范大学化学化工学院,甘肃兰州730070

出　　处：《西北师范大学学报（自然科学版）》2024年第6期112-118,I0004,共8页Journal of Northwest Normal University(Natural Science)

基　　金：中国石油和化工行业低碳节能与高端润滑重点实验室资助项目。

摘　　要：以乙烯丙烯共聚物、马来酸酐、过氧化二叔丁基、防交联剂、乳化剂和胺化物为原料合成了一种多功能分散型黏度指数改进剂.考察了乙丙共聚物接枝马来酸酐过程中接枝率和凝胶率的关系,分别从反应温度、单体马来酸酐和引发剂用量等方面分析了接枝率和凝胶率的变化规律,提出了提高接枝率和降低凝胶率的方法.结果表明,在引入防交联剂的条件下,反应的接枝率和凝胶率达到了较好的平衡,分别为2.8%和3.6%.所得产品具有优异的增稠能力、烟炱分散性能、烟炱磨损性能、抗氧化性能和剪切稳定性能,兼具黏度指数改进剂和无灰分散剂的特点.A soot dispersed viscosity index improver was prepared by grafting reaction of ethylene-propylene copolymer(OCP),maleic anhydride,initiator di-tert-butyl peroxide,and anti-crosslinker,and then amidation reaction was carried out by adding emulsifier and amide.The relationship between grafting ratio and gel ratio in the process of grafting maleic anhydride onto ethylene-propylene was investigated.The change trend of grafting ratio and gel ratio was analyzed based on the reaction temperature,monomer maleic anhydride content and initiator dosage.The methods for improving grafting ratio and reducing gel ratio were proposed.Under the condition of anti-crosslinking agent,the grafting ratio and gel ratio of the reaction can reach a good balance,it is 2.8%and 3.6%,respectively.The prepared product possesses the characteristics of viscosity index improver and ashless dispersant,which has excellent thickening ability,good dispersion properties of oil sludge,remarkable soot wear property and great oxidation resistance.

关 键 词：乙丙橡胶 接枝率 凝胶率 防交联剂 烟炱 

分 类 号：TE624.8[石油与天然气工程—油气加工工程]