T_8-NH_2/E-44复合涂层的制备及其防腐性能研究  

Preparation and performance of corrosion resistance for T_8-NH_2/E-44 composite coating

作　　者：罗春林[1] 韦菲 侯蕾 覃筱燕[1] 黄映恒[1] 莫瑞华 苏瑞林 LUO Chun-lin WEI Fei HOU Lei QIN Xiao-yan HUANG Ying-heng MO Rui-hua SU Rui-lin(School of Materials Science and Engineering, Guangxi University, Nanning 530004, China Nanning Watson Ecological Biotechnology Co., Ltd., Nanning 530004, China)

机构地区：[1]广西大学材料科学与工程学院,广西南宁530004 [2]南宁沃森生态生物科技有限公司,广西南宁530007

出　　处：《广西科技大学学报》2016年第3期50-54,共5页Journal of Guangxi University of Science and Technology

基　　金：南宁市中小企业技术创新资金项目(20126266);广西大学科研基金项目(XBZ120548);广西石化资源加工及过程强化技术重点实验室项目(2013K03);广西自然科学基金项目(2013GXNSFAA019035)资助

摘　　要：以纳米杂化材料单氨基笼型倍半硅氧烷T_8-NH_2作为改性剂,改性环氧树脂E-44,制备T_8-NH_2/E-44复合涂层,应用于低碳钢表面以提高金属表面的防腐蚀性能.通过扫描电镜(SEM)、盐雾腐蚀、浸泡增重及极化曲线测试考察了不同添加量的T_8-NH_2复合涂层在中性介质中防腐蚀性能的影响.实验结果表明:当T_8-NH_2添加量为2%时,在E-44中的分散效果最佳,复合涂层的耐盐雾腐蚀性能最好,在浸泡了480 h后具有最小增重值,极化曲线腐蚀电位正移约232 mV,腐蚀电流下降近258倍,腐蚀速率下降近134倍.实验结果验证,T_8-NH_2/E-44复合涂层可提高低碳钢表面的防腐蚀性能.E-44 was modified with nano hybrid- Ts-NH2 as modifier, and Ts-NH2/E-44 composite coating was prepared. T8-NH2/E-44 composite coating was used on low carbon steel in order to improve its corrosion resistance. In this paper, the influences on corrosion resistance were investigated by using SEM, salt spray test, immersion and polarization curves when adding different amount of Ts-NH2 in neutral medium. The result shows that when the content of T8-NH2 was 2%, Ts-NH2 had the best dispersion in E-44, and composite coating had the best anticorrosion under salt spray. Weight added was the least while immersing 480h, meanwhile, corrosion potential polarization curve shifted about 232mV with corrosion current decreasing by nearly 258 times and corrosion rate declining by nearly 134 times. The experimental results verify T8-NH2/E-44 coating can improve corrosion resistance of low-carbon steel surface.

关 键 词：POSS 改性 环氧树脂 金属表面 防腐蚀 

分 类 号：TQ317.3[化学工程—高聚物工业]