有机胺乙氧基化缓蚀剂的合成及复配性能研究  

The Synthesis and Complex Performance of the Organic Amine Ethyl Oxide Inhibitor

作　　者：张勇 刘言霞 王素芳 陆原 张颖 胡廷 张国欣 李家俊 ZHANG Yong;LIU Yan-xia;WANG Su-fang;LU Yuan;ZHANG Ying;HU Ting;ZHANG Guo-xin;LI jia-jun(CNOOC(Tianjin)Oilfield Chemical Co.,Ltd.Tianjin 300452,China)

机构地区：[1]中海油(天津)油田化工有限公司,天津300452

出　　处：《全面腐蚀控制》2024年第8期151-154,158,共5页Total Corrosion Control

摘　　要：本文采用以十八胺与环氧乙烷反应,生成十八胺聚氧乙烯醚。通过调节反应物的不同比例,最终确定在十八胺:环氧乙烷=1:10时,反应产物的醇水体系中溶解良好,缓蚀效果最佳。采用红外光谱扫描,通过特征峰的分析,验证合成产物确为目标产物。将生成十八胺聚氧乙烯醚与硫氰酸钠、二邻甲苯硫脲、硫脲基油酸二乙烯三胺咪唑啉进行复配,复配后得到缓蚀剂通过挂片失重实验,测试了缓蚀剂的缓蚀性能;通过SEM进行腐蚀挂片表面进行观察。结果表明:十八胺聚氧乙烯醚缓蚀具有良好的配伍性及复配性能,与含硫物质复配后均有很好的缓蚀效果;加入缓蚀剂的金属挂片呈现金属光泽,腐蚀轻微。In this paper,octadecylamine was used to react with ethylene oxide to produce octadecylamine polyoxyethylene ether.By adjusting the different ratios of reactants,it was finally determined that when octadecylamine:ethylene oxide=1:10,the reaction product dissolved well in the alcohol water system,and the corrosion inhibition effect was the best.Infrared spectrum scanning and characteristic peak analysis were used to verify that the synthetic product was the target product.The synthesis of octadecylamine polyoxyethylene ether with sodium thiocyanate,dio-toluene thiourea and thioureolate diethylenetriamine imidazoline was combined,and the corrosion inhibitor was obtained by weight loss test.SEM was used to observe the corrosion surface of the hanging plate.The results show that the corrosion inhibition of octadecylamine polyoxyethylene ether has good compatibility and compound performance,and the compound combination with sulfur-containing substances has good corrosion inhibition effect.The electrochemical polarization curve shows that the corrosion inhibitor has good corrosion inhibition on both anode and cathode processes.The metal hangings with corrosion inhibitors show metallic luster and slight corrosion.

关 键 词：十八胺 乙氧基化 含硫物质 复配性能 缓蚀性能 

分 类 号：TQ085[化学工程]