石墨烯对聚乙烯醇缩丁醛防腐涂层性能的影响  

Effect of graphene on properties of PVB anticorrosive coating

作　　者：耿宏章[1,2] 石培培 许春霞[1,2] 贾松霖 GENG Hong-zhang;SHI Pei-pei;XU Chun-xia;JIA Song-lin(School of Material Science and Engineering,Tianjin Polytechnic University,Tianjin 300387,China;Tianjin Key Laboratory of Advanced Fibers and Energy Storage,Tianjin Polytechnic University,Tianjin 300387,China)

机构地区：[1]天津工业大学材料科学与工程学院,天津300387 [2]天津工业大学天津市先进纤维材料与储能技术重点实验室,天津300387

出　　处：《天津工业大学学报》2018年第6期60-65,共6页Journal of Tiangong University

基　　金：天津市自然科学基金资助项目(15JCZDJC37900)

摘　　要：为提高涂层的防腐蚀性能,采用改进的Hummers法成功制备了氧化石墨烯(GO),利用水热还原法制备还原氧化石墨烯(rGO),将rGO与无机纳米粒子(SiO_2、TiO_2)结合,采用刷涂的方法制备rGO/聚乙烯醇缩丁醛(PVB)复合涂层;通过TEM、FT-IR、XPS等观察分析GO及rGO的表面形貌和微观结构,并利用摩擦磨损和接触角测试研究rGO/PVB涂层的疏水性,同时利用电化学分析进一步探究防腐涂层的防腐性能.结果表明:rGO与无机纳米粒子复合,得到的rGO/PVB涂层的疏水性较好,且在研究范围内随rGO含量的增加,涂层的防腐性能越好,当rGO质量分数为0.6%时涂层的腐蚀速率最小,防腐效率最高为99.79%.To improve the corrosion resistance of the coating, graphene oxide (GO) was prepared successfully by modified Hummers method, and then reduced graphene oxide (rGO) was obtained using hydrothermal reduction method. Combining rGO with inorganic nanoparticles (SiO2, TiO2), the rGO/polyvinyl butyral (PVB) composite coating was prepared by brush coating method. The surface morphology and microstructure of rGO and GO were analyzed through TEM, FT-IR, XPS, and the hydrophobicity of the rGO/PVB coating was studied by friction wear and contact angle test. The electrochemical analysis was used to further explore the anti-corrosion coating. The results show that rGO was combined with inorganic nanoparticles and the obtained rGO/PVB coatings has good hydrophobicity. In the range of research, the corrosion resistance of the coating becomes better with the increase of rGO content. When the rGO mass fraction is 0.6%, the corrosion rate of rGO/PVB coating is the smallest and the anti-corrosion efficiency is the highest of 99.79%.

关 键 词：石墨烯 聚乙烯醇缩丁醛 防腐涂层 电化学分析 防腐性能 

分 类 号：TG174.46[金属学及工艺—金属表面处理]