第26卷第2期2023年2月建筑材料学报JOURNALOFBUILDINGMATERIALSVol.26,No.2Feb.,2023海上风电钢管桩石墨烯涂层的防腐性能李辉*,赵凯(浙江华东工程咨询有限公司,浙江杭州311122)摘要:研究了常规重防腐涂层(常规涂层)和石墨烯重防腐涂层(石墨烯涂层)的附着力和电化学性能,并利用数值模拟研究了牺牲阳极和石墨烯涂层防护下的海上风电钢管桩的防腐性能.结果表明:石墨烯涂层的附着力明显大于常规涂层;石墨烯涂层的腐蚀电流密度比常规涂层降低了1个数量级,且其腐蚀电位正移,表明石墨烯涂层的防腐效果较好;与常规涂层相比,石墨烯涂层可显著减小钢管桩表面的腐蚀速率,提高涂层的阴极保护作用.关键词:海上风电;石墨烯涂层;钢管桩;腐蚀中图分类号:P752文献标志码:Adoi:10.3969/j.issn.1007-9629.2023.02.013CorrosionResistanceofGrapheneCoatingforSteelPipePileinOffshoreWindFarmLIHui*,ZHAOKai(ZhejiangHuadongEngineeringConsultingCo.,Ltd.,Hangzhou311122,China)Abstract:Theadhesionandelectrochemicalpropertiesofconventionalheavy-dutyanti-corrosioncoating(conventionalcoating)andgrapheneheavy-dutyanti-corrosioncoating(graphenecoating)werestudied.Thecorrosionresistanceofsteelpipepilesinoffshorewindfarmprotectedbysacrificialanodeandgraphenecoatingwasstudiedbynumericalsimulationmethod.Theresultsshowthattheadhesionofgraphenecoatingissignificantlygreaterthanthatofconventionalcoating.Thecorrosioncurrentdensityofgraphenecoatingisreducedbyoneorderofmagnitudecomparedwiththatofconventionalcoating,anditscorrosionpotentialrises,indicatingthattheanti-corrosioneffectofgraphenecoatingisbetter.Comparedwiththeconventionalcoating,theuseofgraphenecoatingcansignificantlyreducethecorrosionrateofsteelpipepileandimprovethecathodicprotectioneffectofthecoating.Keywords:offshorewindfarm;graphenecoating;steelpipepile;corrosion目前,中国海上风电风机基础多采用大直径单桩基础型式,其承载着风机系统安全运营的重任,因此钢管桩的防腐性能是关系到整个风电工程安全运行的关键[1-2].有机环氧树脂涂层能良好阻隔外界环境对钢结构材料的腐蚀,被广泛应用于海洋环境[3-5].但是,环氧树脂在较高温度下承受较强腐蚀介质的能力较差[6],且钢管桩防腐涂层厚...