超疏水银纳米涂层的制备及其抗腐蚀性  

Fabrication of silver nano coatings and investigation of their superhydrophobic and anticorrosion properties

作　　者：杨自嵘[1] 石彦龙[1] 冯晓娟[1] 王永生[1] 岳国仁[1] 杨武[2] 

机构地区：[1]河西学院化学化工学院,甘肃省高校河西走廊特色资源利用省级重点实验室,张掖734000 [2]西北师范大学化学化工学院,生态环境相关高分子材料教育部重点实验室,兰州730070

出　　处：《科学通报》2013年第28期2934-2939,共6页Chinese Science Bulletin

基　　金：国家自然科学基金(20873101);甘肃省高校河西走廊特色资源利用省级重点实验室面上项目(ZX1101)资助

摘　　要：通过置换反应,在锌基底上制得银纳米涂层,经十二烷基硫醇(DDT)、十八烷基硫醇(ODT)表面修饰后表现出较好的超疏水性和抗腐蚀性,接触角达到151.8°和156.2°,滚动角接近5°.涂层表面的超疏水性受反应时间、AgNO3浓度及化学表面能的控制.本文对银纳米涂层超疏水效应的形成及其抗腐蚀性进行了分析、探讨.Silver nano coatings were fabricated on zinc substrate by a facile method of replacement reaction. The coatings enhibit properties of superhydrophobicity and anticorrosion after being modified by dodecanethiol （DDT） and octadecanethiol （ODT）. Contact angles on modified coating are 156.2° and 151.8°, respectively, and the glide angle is approximately 5°. Silver coatings＇ superhydrophobicity is dominated by reaction time, concentration of AgNO3 and surface free energy. Finally, superhydrophobic and anticorrosion mechanisms of the coatings were analyzed and discussed.

关 键 词：银纳米涂层 超疏水性 抗腐蚀性 阶层结构 表面修饰 

分 类 号：TB304[一般工业技术—材料科学与工程]