咪唑啉季铵盐复配缓蚀剂的缓蚀性能研究  

Research on Corrosion Resistance of Complex Imidazoline Quaternary Ammonium Salt Corrosion Inhibitor

作　　者：于湘[1,2] 周祥照 程丽华[1,2] 王海泉[1] 刘文[1] 

机构地区：[1]广东石油化工学院化学工程学院,广东茂名525000 [2]茂名市石油化工腐蚀与安全工程技术研究中心,广东茂名525000

出　　处：《广东石油化工学院学报》2016年第4期18-22,共5页Journal of Guangdong University of Petrochemical Technology

基　　金：广东省自然科学基金资助项目(2014A030307033);茂名市科技计划(515040);大学生创新创业训练项目(2015DCA031)

摘　　要：以有机酸、二乙烯三胺为原料,二甲苯为携水剂合成咪唑啉中间体,向咪唑啉中间体体系中加入氯化苄合成咪唑啉季铵盐缓蚀剂。采用失重法和极化曲线对原产品和复配后的产品进行缓蚀性能研究;通过腐蚀电流密度、腐蚀电位、腐蚀速率分析,得出不同咪唑啉季铵盐质量分数、OP-10复配比例时,缓蚀剂在酸性盐溶液中对不锈钢材料的缓蚀效率。结果表明,加入质量分数0.5%的咪唑啉季铵盐缓蚀剂的缓蚀性能最好;咪唑啉季铵盐缓蚀剂与OP-10在酸性盐介质中以1∶2复配时缓蚀效果较好;咪唑啉季铵盐缓蚀剂与OP-10在盐水介质中以1∶5复配时缓蚀效果较好。The organic acid,diethyenetriamine as raw material,and dimethyl benzene as a water-carrying agent can synthesize Imidazoline intermediate,in which benzyl chloride is added to produce Imidazoline Quaternary Corrosion Inhibitor.In addition,original product and the compound product are studied by weight loss method and polarization curve.Based on corrosion current density,corrosion potential,and corrosion rate analysis,the corrosion inhibition effect is obtained after the imidazoline quaternary corrosion inhibitor is added into acid salt solution with stainless steel under the condition of different concentration ratio.The results show that corrosion inhibition effect is the best when 0.5% of imidazoline quaternary corrosion inhibitor is added,and OP-10 compound ratio is 1∶ 5 in saline medium optimum.

关 键 词：复配缓蚀剂 咪唑啉季铵盐 不锈钢 

分 类 号：TQ39[化学工程]