两种抗水解剂作用于TMPTO的效果分析  

Analysis on effect of two anti-hydrolysis agents on TMPTO

作　　者：田莹 吕涯[1] TIAN Ying;LV Ya(Petroleum Processing Research Institute,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学石油加工研究所,上海200237

出　　处：《现代化工》2020年第4期173-178,共6页Modern Chemical Industry

摘　　要：三羟甲基丙烷油酸酯(TMPTO)具有黏度指数高、环境友好等特点,但酯类基础油极易水解。为了改善基础油的水解,选取2种抗水解剂N,N’-二异丙基碳化二亚胺(DIC)以及2-甲基-2-唑啉分别加入到TMPTO中,通过ASTM D261-09进行实验,考察其对TMPTO水解的抑制作用。结果表明,随着2种抗水解剂质量分数的增加,抑制TMPTO水解的作用也越强。DIC和2-甲基-2-唑啉的最适宜质量分数分别为0. 5%和0. 8%,其中DIC的抗水解效能更高。加入抗水解剂不会对极压抗磨性和抗腐蚀性能产生影响。Trimethylolpropane oleate( TMPTO) has been widely used as a petroleum product with a more than 90%of biodegradation rate,high viscosity index and environmental friendliness. However,ester-series base oils are more susceptible to be hydrolysis in humid environment,resulting in oil loss or even machine failure.In order to improve this shortage,two representative anti-hydrolysis agents including N,N’-diisopropyl carbodiimide( DIC) and 2-methyl-2-oxazoline are selected and respectively added into TMPTO. ASTM D2619-09( 2014) "Hydraulic Fluid Hydrolysis Stability Test Method( Beverage Bottle Method) "is carried out to investigate their inhibition of TMPTO hydrolysis by each anti-hydrolysis agent alone at different contents. The hydrolytic stability of TMPTO is found to increase with the increasing dosage of anti-hydrolysis agent.The optimum dosages of DIC and 2-methyl-2-oxazoline are 0. 5% and 0. 8%,respectively.Between them,DIC has higher hydrolysis resistance. In addition,it is also verified that the addition of antihydrolysis agent will not affect TMPTO’s extreme pressure abrasion resistance and corrosion resistance.

关 键 词：碳化二亚胺 唑啉 水解 三羟甲基丙烷油酸酯 环境 

分 类 号：TE6[石油与天然气工程—油气加工工程]