DOI:10.11973/fsyfh-202302012环保型高固含低表面处理容忍性环氧涂层的制备及其性能史美慧,刘宏宇,吴井龙,韩悦,康鑫,周乃羽(沈阳化工研究院有限公司,沈阳110021)摘要:为了满足钢结构设备表面的维修需要,制备了高固含低表面处理容忍性环氧涂层,并分别讨论了树脂含量、固化剂种类以及复配颜填料对于所制备涂层性能的影响。结果表明:采用最优配方(A组分中环氧树脂质量分数为25%,改性曼尼希碱为固化剂,磷酸锌、氧化锌、三聚磷酸铝、钼酸锌、复合铁钛粉复配体系为颜填料)制备的涂料具有较好的流动性和润湿性,在低表面处理基材上即可使用,成膜后涂层的防腐蚀性能优异。关键词:环氧涂层;高固含;低表面处理容忍性;维修中图分类号:TQ630.7+9文献标志码:A文章编号:1005-748X(2023)02-0070-05PreparationandPropertiesofEnvironmentFriendlyEpoxyCoatingswithHighSolidContentandLowSurfaceTreatmentToleranceSHIMeihui,LIUHongyu,WUJinglong,HANYue,KANGXin,ZHOUNaiyu(ShenyangResearchInstituteofChemicalIndustry,Shenyang110021,China)Abstract:Epoxycoatingswithhighsolidcontentandlowsurfacetreatmenttolerancewereprepared,andtheeffectsofresincontent,curingagenttype,compoundofpigmentandfilleronthepropertiesofthepreparedcoatingswerediscussedrespectively,inordertomeetthemaintenancerequirementsofsteelstructureequipmentsurface.Theresultsshowedthatthecoatingpreparedwiththeoptimumformulahadgoodflowpropertyandwettability,inwhichthemassfractionofepoxyresinincomponentAwas25%,modifiedMannichbasewascuringagent,thecompoundofzincphosphate,zincoxide,aluminumtripolyphosphate,zincmolybdate,andcompositeiron-titaniumpowderswaspigmentandfiller.Soitwasabletobeusedonthesubstrateafterlowsurfacetreatment,andthecorrosionresistanceofthefilmcoatingwasexcellent.Keywords:epoxycoating;highsolidcontent;lowsurfacetreatmenttolerance;maintenance在工业设备中钢基材的应用占据了相当大的比例,防腐蚀涂层在钢基材和腐蚀介质之间充当阻挡层,可显著缓解基材腐蚀[1]。钢基材表面状况对涂层寿命影响较大[2],因此需对钢基材进行表面处理,使其除锈等级需达到Sa2.5级,且表面无油、无锈、无氧化皮等污物[3]。喷砂是使用最多的钢基材表面处理方法,但存在成本高、粉尘大、污染水源[4]等弊端,不适用于钢结构设备的维修。在维修施工...
