文章基本信息

标题：Synthesis and Anticorrosion for X70 Steel of Propynol Derivatives in Acid Medium,
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作者：Yu Q. ; Jiang X. ; Zhou L. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2014
卷号：5
期号：1
页码：13-32
出版社：University of Mohammed Premier Oujda
摘要：1-dodecyl/tetrdecyl/hexadecyl-3-(4-hydrox ybut-2-ynyl) p yridinium bromides (namely M-n) were synthesized and their inhibition capacity for X70 steel in 5 M HCl investigated by weight loss test, electrochemical methods and surface analysis technics. The results sho wed that M-n could efficiently protect X70 steel from corrosion with an efficiency of 99% at 40 M and 60 M in 5 M H Cl solution. The inhibitory efficiency was almost unchanged at 30-60 M for M-n at a concentration of 40 M. Surface morphology analysis evidenced the protective film of M-n on X70 steel surface. The adsorption of M-n obeyed the Langmuir adsorption isotherm. And it was a spontaneous, exothermic and entropy driving process
关键词：X70 steel; Weight loss; EIS; Corrosion inhibitor; Intramolecular synergism