油酸酰胺作为防锈添加剂的防锈性能研究-表面技术.pdf

摇 摇 摇 表面技术 第44卷摇 第9期 ·122 · SURFACE TECHNOLOGY 摇 2015年09月 試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試試 油酸酰胺作为防锈添加剂的防锈性能研究 杜天源,衣守志,袁博,焦斌 (天津科技大学材料科学与化学工程学院,天津300457) 摘摇 要: 目的摇 以油酸酰胺作为防锈添加剂自制防锈剂,优选配方,考察防锈性能。 方法摇 以环保型缓 蚀剂水溶性硅酸盐为主要原料,以酰胺型表面活性剂为添加剂制备工序间水基防锈剂,通过电化学测试、 耐候试验和扫描电镜等评价其性能。 结果摇 电化学测试结果表明,涂抹自制防锈剂后,腐蚀电流密度降 -7 2 低到9.12伊10 A/ cm ,腐蚀电位提高到-0.4206 V。 结论摇 与市售防锈剂对比,以油酸酰胺为添加剂制 备的水基防锈剂可以明显提高碳钢的耐腐蚀性能。 关键词:硅酸盐;油酸酰胺;水基防锈剂;耐腐蚀性能 中图分类号:TG174.42摇 摇 摇 文献标识码:A摇 摇 摇 文章编号:1001鄄3660(2015)09鄄0122鄄05 DOI:10.16490/ j.cnki.issn.1001鄄3660.2015.09.020 Rust Resistance of Oleamide Used as Antirust Additive DU Tian鄄yuan,YI Shou鄄zhi,YUAN Bo,JIAOBin (College of Materials Science and Chemical Engineering,Tianjin University of Science Technology,Tianjin300457,China) ABSTRACT:Objective To explore the antirust performance and optimize formulation of homemade rust inhibitor prepared using oleamide asan antirust additive. Methods Environmentfriendly corrosion inhibitorwater鄄soluble silicatewasused asthemainraw material andsurfactantofamidetypeastheadditivetoprepareinter鄄processwater鄄basedrustinhibitor. Theperformancewasevalu鄄 ated by electrochemical test,weathering test,and scanning electron microscopy,etc. Results Electrochemical test results showed -7 2 that the corrosion current density of the steel coated with the homemade rust inhibitor decreased to 9.12伊10 A/ cm ,while the corrosion potential increased to -0.4206 V. Conclusion Compared with commercial rust inhibitor,the water鄄based rust inhibitor preparedwith oleamide as additive could