自组装单分子膜成膜形貌及其缓蚀性能  

Self-assembled Monolayer Film Morphology and Corrosion Inhibition

作　　者：刘琳[1] 楚茂阳[1] 邢锦娟[1] 钱建华[1] 

机构地区：[1]渤海大学辽宁省功能化合物的合成与应用重点实验室,锦州121003

出　　处：《科学技术与工程》2011年第13期3059-3062,共4页Science Technology and Engineering

基　　金：辽宁省自然科学基金(20082178);辽宁省高校优秀人才支持计划(2009R02)资助

摘　　要：新工艺方法在玻璃基体表层及银片表面制备出3巯-基丙基三甲氧基硅烷自组装单分子膜(MPS-SAM),并利用扫描电子显微镜(SEM)观察了玻璃基体薄膜形貌,使用自动椭圆偏振测厚仪SGC-2测出其膜厚;运用金相显微镜观测出银片表面形貌变化并结合触针式粗糙度测量仪得出其膜厚范围;同时通过塔菲尔曲线(Tafel)对银片电极的电化学性能进行了对比分析。结果表明:组装溶液的成膜形貌与致密性受组装时间的影响很大且在金属与非金属表面的成膜时间大不相同;银片表面组装膜形貌的变化决定其缓蚀性能、稳定性和致密性等条件。Self-assembled monolayer was fabricated on glass substrates and Ag substrates by molecular self-assembly new process.Scanning electron microscope（SEM） and Auto Ellipsometer SGC—2 were used to characterize the thin films on glasses.Metallographic microscope and the roughness measuring instrument of stylus were used to characterize the thin films on glasses.Meanwhile,electrochemical properties of silver films were evaluated by Tafel curves.The results show that morphology and density of the MPS—SAM greatly influenced by the assembly time,and the surface of the metal and nonmetal film were formed at different times.Surface morphology of silver assembled monolayer determine their corrosion performance,stability and density.

关 键 词：防护效能 自组装单分子膜 3-巯基丙基三甲氧基硅烷 

分 类 号：TB304[一般工业技术—材料科学与工程]