聚甲基丙烯酸酯类润滑油降凝剂的研究  

RESEARCH ON SYNTHESIS OF POUR POINT DEPRESSANT POLYMETHACRYLATE FOR LUBRICATING OIL

作　　者：李黔蜀[1,2] 贺建勋[2] 

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]西北大学化工学院

出　　处：《石油炼制与化工》2015年第6期84-88,共5页Petroleum Processing and Petrochemicals

摘　　要：以甲基丙烯酸、高碳醇、马来酸二异辛酯和苯乙烯为原料、甲苯为溶剂、对甲苯磺酸为催化剂,通过酯化和聚合反应合成甲基丙烯酸高碳醇酯-马来酸二异辛酯-苯乙烯三元共聚物降凝剂,研究聚合条件对降凝剂降凝效果的影响。结果表明:在n(甲基丙烯酸十四酯)∶n(马来酸二异辛酯):n(苯乙烯)=5∶1∶1、引发剂过氧化苯甲酰用量为0.8%、反应温度为105℃、反应时间为5h的条件下,合成的三元共聚物降凝剂具有最佳的降凝效果;该降凝剂的添加量为1.0%时,可使150SN基础油凝点降低22℃。The methacrylate ester-diisooctyl maleate-styrene terpolymer was synthesized through es-terification and polymerization using methacrylic acid,high carbon alcohol and maleic acid isooctyl ester and styrene as raw materials,toluene as solvent,and p-toluene sulfonic acid as catalyst. The synthesis conditions and pour point depressing performance of the terpolymer was studied. The results show that the terpolymer,synthesized at the conditions of molar ratio of monomers of 5 ∶1 ∶1,initiator of 0.8%and 105 ℃,5 h,has the best pour pint depressing performance. The pour point of the 150SN base oil decreases 22 ℃ when the dosage of depressant is 1.0%.

关 键 词：甲基丙烯酸酯 马来酸二异辛酯 降凝剂 聚合 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]