兼有缓蚀与降黏性的聚丙烯酸甲酯-丙烯酸咪唑啉制备及性能评价  

Preparation and Performance Evaluation of Poly Methyl Acrylate-acrylic Acid Imidazoline with Corrosion Inhibition and Viscosity Reduction Effect

作　　者：林富荣[1] 仲艳艳 曾天亮 LIN Furong;ZHONG Yanyan;ZENG Tianliang(School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164,P R of China)

机构地区：[1]常州大学石油化工学院,江苏常州213164

出　　处：《油田化学》2018年第1期144-149,共6页Oilfield Chemistry

基　　金：江苏省前瞻性联合研究项目"兼有缓蚀作用的高分子降黏剂的开发"(项目编号BY2015027-19);常州大学江苏省先进催化与绿色制造协同创新中心资助

摘　　要：为开发兼有缓蚀与降黏作用的多功能油品添加剂,以丙烯酸甲酯和丙烯酸咪唑啉为原料制备了聚丙烯酸甲酯-丙烯酸咪唑啉(MA-ACI),用红外光谱对其结构进行了表征,用凝胶渗透色谱对其分子量进行了检测。采用旋转挂片和电化学Tafel极化曲线法评价了MA-ACI的缓蚀性能,用旋转黏度计研究了MA-ACI的降黏性能。结果表明,在丙烯酸甲酯与丙烯酸咪唑啉摩尔比8∶1、引发剂偶氮二异丁腈加量1.0%、反应温度80℃、反应时间10 h的条件下制得的MA-ACI(相对分子质量36582)对N80金属钢片具有良好的缓蚀作用,对江苏油田韦5-57井原油具有较好的降黏作用。在30℃、MA-ACI加量为0.10 g/L时,用旋转挂片法测得的缓蚀率为82.06%,MA-ACI加量为0.40 g/L时,用电化学极化曲线法测得的缓蚀率为90.21%;在70℃、MA-ACI加量为100μg/g时,江苏油田韦5-57井原油的降黏率为85.28%。In order to develop a multifunctional oil additive with corrosion inhibition and viscosity reduction,poly methyl acrylate-acrylic acid imidazoline（MA-ACI）was synthesized using methyl acrylate and acrylic imidazoline as raw materials,and characterized by FT-IR and gel permeation chromatography（GPC）. The corrosion inhibition property of MA-ACI was evaluated by rotating hanging plate method and electrochemical Tafel polarization curve method,and its viscosity reduction property was sdudied by rotating viscometer. The results showed that MA-ACI with the relative molecular weight 36582 could be obtained under the condition of 8∶1 molar ratio of methyl acrylate to acrylic imidazoline,1% initiator AIBN,80℃ reaction temperature and 10 h reaction time. MA-ACI had good corrosion inhibition effect on N80 steel sheet,and had good viscosity reducing effect on crude oil of Wei5-57 well in Jiangsu oilfield. At 30℃,the inhibition rate measuring by rotating hanging plate method was 82.06% with MA-ACI dosage of 0.10 g/L,and that measuring by electrochemical polarization curve method was 90.21% with MA-ACI dosage of0.40 g/L. The viscosity reduction rate of crude oil of Wei5-57 well in Jiangsu oilfield was 85.28% under the condition of 100 μg/g MA-ACI and 70℃.

关 键 词：丙烯酸甲酯 丙烯酸咪唑啉 聚丙烯酸甲酯-丙烯酸咪唑啉 降黏性 缓蚀性 

分 类 号：TG174.42[金属学及工艺—金属表面处理] TE39[金属学及工艺—金属学]