含辣素衍生结构疏水缔合聚合物的缓蚀性能研究  

Inhibition Effect of Hydrophobic Associating Polymer Containing a Capsaicin-Like Moiety

作　　者：孙绪金 张寒露[2] 李亮[2] 吴刚[1] 于良民[1] SUN Xu-Jin;ZHANG Han-Lu;LI Liang;WU Gang;YU Liang-Min(Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education,College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266100,China;Institute of Naval Equipment Technology,Beijing 102442,China)

机构地区：[1]中国海洋大学海洋化学理论与工程技术教育部重点实验室化学与化工学院,山东青岛266100 [2]海军装备技术研究所,北京102442

出　　处：《中国海洋大学学报（自然科学版）》2019年第4期91-96,共6页Periodical of Ocean University of China

基　　金：国家重点研究发展计划项目(2016YFC0802301);中央高校基本科研业务费专项资金项目(201562026)资助~~

摘　　要：采用失重法、电化学方法以及表面观察方法对比研究了含辣素衍生结构疏水缔合聚合物P(AM-MAA-AMPSHDDE-SA)(PAMAHS)和聚丙烯酰胺对Q235钢在CO_2饱和的模拟油田采出水中的缓蚀性能。实验结果表明:相较于聚丙烯酰胺,PAMAHS对碳钢在油田水中的腐蚀具有较好的抑制作用,其缓蚀率随着聚合物浓度的增加而增大,缓蚀剂浓度为500mg·L^(-1)时,缓蚀效率能达到80.64%。因此,PAMAHS是一种混合抑制型缓蚀剂,其分子可以吸附在金属表面,形成一层具有保护作用的吸附膜,从而起到减缓腐蚀的作用。PAMAHS在碳钢表面的吸附行为符合Langmuir吸附等温式。By means of weight loss method,electrochemical method and surface observation methods,the inhibition efficiency of the hydrophobic associating polymer P(AM-MAA-AMPS-HDDE-SA)(PAMAHS)containing capsaicin moietyfor Q235 steel in the CO2 saturated simulated oilfield was studied.Results show that the corrosion inhibitor PAMAHSgave an good performance in inhibiting the corrosion of carbon steel in oilfield water,which was better than polyacrylamide.The corrosion rate increased as the polymer concentration increased,when the concentration of corrosion inhibitor was 500 mg·L^-1,the corrosion inhibition efficiency can reach up to 80.64%.PAMAHS is a mixed type corrosion inhibitor.Thepolymer molecules can adsorbed on the metal surface,forming a protective adsorption film which play a great role in corrosion inhibition.Its adsorption behavior on carbon steel surface was according with the Langmuir adsorption isotherm.

关 键 词：缓蚀剂 疏水缔合聚合物 辣素 吸附 电化学 

分 类 号：TG174[金属学及工艺—金属表面处理]