2023年05月第38卷第05期CHINACOATINGSMay2023中国涂料Vol.38No.0540XXXXXX收稿日期:2023-02-01作者简介:张春江(1994–),男,江苏盐城人。硕士,从事功能性涂料的开发与应用。基金项目:国家重点研发项目(2021YFF0500803)聚合物乳液含量对外墙无机涂料性能聚合物乳液含量对外墙无机涂料性能影响研究影响研究张春江1,2,缪志勇3,王书展1,2,孙德文1,2,李申振1,2,冯潇月1,2,冉千平4,穆松1,2(1.江苏苏博特新材料股份有限公司,南京211103;2.高性能土木工程材料国家重点实验室,南京211103;3.江苏丰彩建材(集团)有限公司,南京211599;4.东南大学材料科学与工程学院,江苏省土木工程材料重点实验室,南京211189)ResearchontheInfluenceofPolymerEmulsionContentonthePerformanceofInorganicCoatingsforExteriorWallsAbstract:Inthispaper,theinfluenceofemulsioncontentchangeonthebondstrengthandwaterresistanceofinorganiccoatingsforexternalwallswassystematicallyevaluated.Threeexperimentsofinitialwaterresistance,adhesionstrengthandwaterabsorptionofcoatingsweredesignedtostudythebondstrengthandwaterresistanceofinorganiccoatingsforexteriorwalls.Theresultsshowthattheemulsioncontenthasagreatinfluenceontheinitialwaterresistanceofinorganiccoatingsforexternalwalls.Whentheemulsioncontentislow,thecoatingshavenofoaming,peeling,strippingorotherdefectsafter15hofwaterflushing1hafterthesurfacedrying,andthestrengthhasnochangeafterdrying.Whentheemulsioncontentishigh,thecoatingsbubbleeasilyafter15hofflushing.Whentheemulsioncontentisintherangeof10%~13%,thebondstrengthoftheinorganiccoatingsontheconcreteisabove3MP.Thehighertheemulsioncontent,thelowerthewaterabsorptionrateofinorganiccoatingsforexteriorwallsandthedenserthecoatings.Keywords:inorganiccoatingsforexteriorwalls,emulsioncontent,waterresistance,bondstrength摘要:通过研究聚合物乳液含量变化对外墙无机涂料黏结强度与耐水性能的影响规律作了系统评价。设计了初期耐水性、附着力强度和涂料吸水量3组实验对外墙无机涂料的黏结强度与耐水性能进行研究。结果表明:乳液含量对外墙无机涂料初期耐水性影响很大。乳液含量少时,涂料喷涂结束表干1h内水流冲刷15h无发泡、起皮、剥落等缺陷现象,干燥后强度无变化;乳...