摘要
采用分子自组装技术在碳钢表面制备了3-巯基丙基三甲氧基硅烷自组装膜(MPTS-SAM).通过原子力显微镜(AFM)观察了碳钢表面成膜过程,并对其表面粗糙度进行了分析;利用动电位极化曲线研究了该自组装膜对碳钢的缓蚀性能.结果显示:该自组装膜对碳钢具有良好的缓蚀性能,且经MPTS自组装分子膜改性处理的碳钢表面较平滑,粗糙度明显降低;硅烷分子的水解程度对自组装有一定影响,且随着组装时间的延长,自组装膜更完整,对碳钢的缓蚀效率更高.
Self -assembled monolayer of 3 -mercaptopropyl trimethoxysilane （ MPTS ） was fabricated on carbon-steel surface by molecular self -assembly process .Atomic force microscope （ AFM） was used to char-acterize the surface morphology of the film , while the corrosion -inhibitive properties of carbon steel were evalua-ted by potentiodynamic polarization techniques in the 0 .5 mol？ L-1 HCl solution .The results show that the self-assembled monolayer of MPTS has a good inhibition performance on carbon steel , and the carbon steel surface modified by MPTS self-assembled monolayer is uniform and relatively smooth , while the surface roughness sig-nificantly reduced .In addition , the degree of hydrolysis of the silane molecules has a certain impact on the MPTS self-assembly .The SAM is more complete , and its inhibition efficiency increases with assembling time exten-ding.
出处
《渤海大学学报（自然科学版）》
CAS
2015年第1期58-62,共5页
Journal of Bohai University:Natural Science Edition
基金
国家自然科学基金(No:21176030)
辽宁省优秀人才支持计划(No:LR2011033)
关键词
3-巯基丙基三甲氧基硅烷
自组装膜
碳钢
缓蚀
3-mercaptopropyl trimethoxysilane
self-assembled monolayer
carbon steel
anti -corro-sion
作者简介
邢锦娟（1980-），女，实验师，主要从事功能材料的合成及应用等方面的研究．
通讯作者：qianjianhua@bhu．edu．cn．
