石墨烯防腐涂料制备及其防腐性能对比  

Preparation and Comparison of Anticorrosive properties of Graphene-based Anticorrosive Coatings

作　　者：陈强 赵悦菊[1,2] 刘杨 郑永立 滕济林[1,2] 王建辉 夏益青[1,2] 俞葆青 石金彪[1,2] 赵春风 Chen Qiang;Zhao Yueju;Liu Yang;Zheng Yongli;Teng Jilin;Wang Jianhui;Xia Yiqin;Yu Baoqin;Shi Jinbiao;Zhao Chunfeng(Beijing Guo Dian Futong Science and Techenolgy Development,Beijing 100070,China;Nanrui Group Co.,Ltd.(State Grid Electric Power Research Institute Co.,Ltd.),Nanjing 211106,China)

机构地区：[1]北京国电富通科技发展有限责任公司,北京100070 [2]南瑞集团有限公司(国网电力科学研究院有限公司),南京211106

出　　处：《涂料工业》2020年第5期19-24,共6页Paint & Coatings Industry

摘　　要：研究了石墨烯底漆的制备与防腐原理,对比石墨烯底漆与富锌底漆耐中性盐雾性能,将石墨烯底漆配套环氧云铁中间漆和氟碳面漆制备不同膜厚的样片,与镀锌片和316L不锈钢的耐中性盐雾性能进行比较。结果表明:单纯的石墨烯底漆防腐性能优于富锌底漆的防腐性能;石墨烯底漆配套涂层总厚度>300μm时,其耐中性盐雾时间>2000 h,镀锌片耐盐雾时间900 h,316L不锈钢片耐盐雾实验>2000 h。分析防腐方案性价比得知,如果基材厚度>1 mm,采用涂层防腐的性价比高。如要求单面防腐,0.5 mm以上基材的单面防腐,涂层的性价比也是高于316L。如果基材厚度<0.8 mm时,需双面防腐时,采用316L不锈钢材料更经济。This paper has discussed the preparation and anticorrosive principle of graphene-based anti-corrosive coatings.Comparison of the anti-corrosion performance of graphene prime to zinc primer in terms of neutral salt spray performance was conducted.Thus a graphene primer was used in combination with epoxy iron oxide intercoat and fluorocarbon topcoat to prepare the sample panels with different film thickness,which was compared to the galvanized sheet and 316 L stainless steel in terms of neutral salt spray resistance.The anticorrosion performance of sole graphene primer was better than that of zinc-rich primer.The total thickness of graphene primer was higher than 300 microns,and its salt spray resistance was over 2000 h,but the galvanized sheet was only 900 h.The salt spray resistance of 316 L stainless steel was over 2000 h.If one-side corrosion protection was required,the coatings with over 0.5 mm thickness was more cost-effective,but if double-side corrosion was needed with the thickness of coatings less than 0.8 mm,the 316 L stainless steel was more economical.

关 键 词：防腐涂料 石墨烯 耐盐雾 不锈钢 镀锌 

分 类 号：TQ635.2[化学工程—精细化工]