BYK消泡剂Defoamers

,Defoamer消泡剂,PublicSeminarPetervanDam,PGMSurfaceAdditives,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Content目录,Whatisfoam-foamstabilization什么是泡-稳泡Modeofactionofdefoamers消泡剂的工作模式Defoamerclasses消泡剂的种类Defoamertestmethods选择消泡剂的测试方法,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,TypesofFoam泡的种类,Wetfoam湿泡,Dryfoam干泡,Foamisanemulsionofagasinaliquid气泡是一种液体包裹气体的乳液,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,CausesforFoamBubbles产生泡沫的原因,Adsorbedair(pigments,extenders)颜填料吸附的空气Reactionbubbles(e.g.,carbondioxideinPUsystems)反应型泡沫（如聚氨酯体系里产生的二氧化碳）Incorporatedair(production,application)外力作用下添加进去的空气（生产，施工）Airfromthesubstrate(wood,concrete,.)底材内的空气（木材，混凝土）,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,BubblesBreakatSurface*气泡在表面破裂*,Pureliquidsdonotfoam!纯净液体不会稳泡！,Drainageeffect,Lamella=doublewallinterface膜层=两层界面,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,NoFoaminPureWater在纯水中不稳泡,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Gibbs-Marangoni-Effect吉布斯-马拉高尼-效应Formationofelectrostatic/stericrepulsingdoublelayers静电的形成/双层空间位阻Increaseofsurface/interfacialviscosity增加表面/界面粘度Gasdiffusion气体扩散Foamstabilizationthroughsolidparticles固体粒子引起的稳泡Influenceofviscosity粘度的影响,MechanismsofFoamStabilization:稳泡的机理：,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,FoamStabilization稳泡,hydrophobicnon-polar憎水性非极性,hydrophilicPolar亲水性极性,Surfactant表面活性剂,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,ElectrostaticRepulsion静电排斥,+,+,+,+,+,10nm,+,+,+,+,+,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,BubblesRisetoSurface*气泡上升到表面,V=Velocityofrise上升的速度r=Bubbleradius气泡的半径=Viscosityofliquid液体的粘度,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Defoamers:modeofaction消泡剂的工作模式,Propertiesofadefoamer:消泡剂的特性：LowSurfaceTension低表面张力Goodspreadingability优异的扩散能力Insoluble/Incompatibleinthesurroundingmedium围绕在液体中但不溶解，不相容silicones,mineraloilsandcertainpolymersfullfillthesecriterias有机硅，矿物油和某些聚合物可以符合这些标准,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Definition:EnteringandSpreadingCoefficient定义：渗透系数和扩散系数,Enteringcoefficient渗透系数E=F+int-DSpreadingcoefficient扩散系数S=F-int-DDefoamer:消泡剂：E0andS0,F=Surfacetensionoffluid流体的表面张力int=Interfacialtensionfluid/defoamer流体/消泡剂的界面张力D=Surfacetensionofdefoamer消泡剂的表面张力,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SpreadingofDefoamer消泡剂的扩散,Markingwatersurfacewithinertpowder在水中撒些粉体,Addingonedropletofdefoamer加入一滴消泡剂,Rapidspreading迅速扩散,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SpreadingofDefoamer(Slow-motion)Q消泡剂的扩散（慢动作回放）,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,WATER-BORNESYSTEMS水性体系,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,CompositionofdefoamersforAqueoussystem水性体系中的消泡剂的成分,Mineraloil,Siliconeoilorwaterinsolublepolymer矿物油，有机硅油或非水溶性聚合物HydrophobicParticles憎水性粒子Carrier载体Otheringredients(e.gfungicides,emulsifiers)其他成分（如杀菌剂，乳化剂）,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Incorporation/Emulsificationofdefoamers.消泡剂的加入/乳化Dropletsizedistribution*消泡剂分布,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,BYK-defoamerClassesforAqueousSystems水性体系中BYK消泡剂的分类,Mineraloildefoamers矿物油消泡剂Siliconedefoamers有机硅消泡剂Silicone-freepolymericdefoamers非有机硅聚合物消泡剂,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,CompositionofMineralOilDefoamers矿物油消泡剂的组成,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DisadvantagesofMineralOilDefoamers*矿物油消泡剂的缺点,Unstableduringstorageofthepaint/separation/syneresis在油漆储存中不稳定，分离，脱水收缩VOCs(249C)Dirtpick-up易沾污SickBuildingSyndrome室内空气综合症GlossreductioninlowPVCsystems在低PVC体系中降低光泽Maycontainaromaticsolvents可能含芳香族溶剂SometimesMicro-Foam会导致微泡Difficulttoincorporate难以加入Odour有气味,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,MineralOilDefoamersforEmulsionPaintsandPlasters为乳胶漆和抹灰设计的矿物油消泡剂,Good良好,Excellent优异,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,BYK-030FamilyBYK-030家族,UsageofdefoamersaccordingtoPVCofthesystem根据体系中PVC含量不同确定消泡剂选择,BYK-033,BYK-034/BYK-038,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,CompositionofSiliconeOilDefoamer有机硅消泡剂的成分,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Polydimethylsiloxanes聚二甲基硅氧烷,Compatible相容,Incompatible不相容,2-30,45-230,1800-2900,380-1500Defoaming消泡,Flow流平,Slip增滑,Hammertone锤纹,x,(CH3)3SiOSiOSi(CH3)3,CH3CH3,x,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SiliconeDefoamers有机硅消泡剂,Polyether:EO,PO,EO/PO聚醚：环氧乙基，环氧丙基，环氧乙基/环氧丙基,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SiliconeDefoamersforEmulsionPaintsandPlasters*乳胶漆和抹灰用的有机硅消泡剂,Good良好,Excellent优秀,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SiliconeDefoamersforAqueousSystems水性体系用的有机硅消泡剂,Polyether=PO聚醚主要由环氧丙基组成,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SiliconeDefoamersforAqueousSystems水性体系用的有机硅消泡剂,Polyether=EOorEO/PO聚醚主要由环氧乙基或环氧乙基/环氧丙基组成,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Defoaming消泡,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SiliconeDefoamerSelection-AqueousSystems*水性体系中的消泡剂的选择,stronglyhydrophobicmoreincompatible强憎水性更不相容,BYK-093,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Defoaming:InfluencingFactors*消泡：影响因素,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerSelection消泡剂的选择,Shearforce剪切力,BYK-021,BYK-019,BYK-018,BYK-093BYK-028,BYK-024,BYK-025,Durationofincorporation添加时间,Postaddition后添加,Letdown配漆,Grinding研磨,BYK-044,BYK-017,BYK-022,BYK-023,BYK-094,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Silicone-freeandMineralOilFreeDefoamersforAqueousSystemsQ水性用非有机硅非矿物油消泡剂,good,excellent,Foamdestroyingpolymersandhydrophobicparticles破泡聚合无和憎水粒子Noinfluenceonrecoatabilityandcolorantacceptance对重涂和受色性没有影响,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SOLVENT-BORNESYSTEMS溶剂型体系,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamersforSolvent-borneandSolvent-freeSystems溶剂型/无溶剂型体系用的消泡剂,Siliconedefoamers有机硅消泡剂Silicone-freepolymerdefoamers非有机硅类聚合物消泡剂Silicone/polymerdefoamers有机硅/聚合物消泡剂Siliconesandacrylateswithdefoamingproperties带有消泡特性的有机硅和丙烯酸酯,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerSelectionforSolvent-borneSystems*溶剂型体系的消泡剂选择,compatible/Soluble相容/可溶解,incompatible/Insoluble不相容/不可溶,Defoaming消泡,Foamstabilization稳泡,Optimum最佳点,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,InfluenceofCompatibility:相容性的影响：OneDefoamerinThreeDifferentSolvents*同一种消泡剂在三种不同溶剂中的表现,Left:tooincompatibleTurbid左：太不相容浑浊,Middle:toocompatiblefoamstabilization中间：太相容稳泡,Right:goodbalanceclear,nofoam右：刚好平衡清澈，没有泡,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SiliconeDefoamersforSolvent-borneandSolvent-freeSystems溶剂体系和无溶剂体系用的有机硅消泡剂,Polarity极性,Efficiency效率,Low低,High高,BYK-020,BYK-071,BYK-141,BYK-080A,BYK-067A,BYK-066N,BYK-065,Low低,High高,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Defects缺陷,compatible/Soluble相容/可溶解,incompatible/Insoluble不相容/不可溶,Defoaming消泡,Foam稳泡,Optimum最适合,AirReleaseAgentSelection脱泡剂的选择,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Defoamers-AirReleaseAgents*消泡剂-脱泡剂,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Silicone/PolymerDefoamersforSolvent-borneandSolvent-freeSystems溶剂性和无溶剂型体系用的有机硅/聚合物消泡剂,Polarity极性,Efficiency效率,Low低,High高,Low低,High高,BYK-070,BYK-088,BYK-A530,BYK-060N,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Silicone-freePolymerDefoamersforSolvent-borneandSolvent-freeSystems*溶剂型/无溶剂性体系用的非有机硅聚合物消泡剂,Polarity极性,Efficiency效率,Low低,High高,Low低,High高,BYK-051,BYK-052BYK-1752,BYK-053,BYK-055,BYK-057,BYK-A550,BYK-A560,BYK-054BYK-1790,Silicone-free非有机硅,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,SurfaceAdditiveswithDefoamingProperties带消泡特性的表面助剂,BYK-077BYK-322BYK-323BYK-320,BYK-354BYK-352BYK-392BYK-359,Silicones有机硅类,Acrylates丙烯酸酯类,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods消泡剂测试方法,Shaking震荡Stirring-inairbydissolver用Dissolver搅入空气Introducingairbypump用泵加入空气Rollingwithporousfoamroller用多孔滚筒滚涂Brushapplication刷涂Measurementofdensity测量密度,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods消泡剂测试方法,Shaking震荡,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods-Shaking消泡剂测试方法震荡,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods消泡剂测试方法,Shaking震荡Stirring-inofairbydissolver用Dissolver搅入空气,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods-Stirring-inofAirbyDissolver消泡剂测试方法-用分散机搅入空气,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods消泡剂测试方法,Shaking震荡Stirring-inofairbydissolver用Dissolver搅入空气Introducingairbypump用泵加入空气,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods消泡剂测试方法,Shaking震荡Stirring-inairbydissolver用Dissolver搅入空气Introducingairbypump用泵加入空气Rollingwithporousfoamroller用多孔滚筒滚涂,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods-RollingWithFoamRoller消泡剂测试方法-用多孔滚筒滚涂,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods消泡剂测试方法,Shaking震荡Stirring-inairbydissolver用Dissolver搅入空气Introducingairbypump用泵加入空气Rollingwithporousfoamroller用多孔滚筒滚涂Brushapplication刷涂,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods-BrushApplication消泡剂测试方法-刷涂,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,DefoamerTestMethods消泡剂测试方法,Shaking震荡Stirring-inairbydissolver用Dissolver搅入空气Introducingairbypump用泵加入空气Rollingwithporousfoamroller用多孔滚筒滚涂Brushapplication刷涂Measurementofdensity测量密度,PetervanDam,BYK-Chemie,PGMSurfaceAdditives,Dispermattofoamuptheink用分散机把气泡搅进油墨