BYK表面助剂资料

SiliconesandAcrylates有机硅和丙烯酸酯Jakarta,JWA+BYKSeminar,22.04.2009,PetervanDamSurfaceAdditives表面助剂,Page2,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesTopics主题-Surfacetensiontheory表面张力理论-Siliconestoimprovesubstratewetting有机硅促进底材润湿-Formationandpreventionofcraters缩孔的形成和避免-Definitionandimprovementofflowandlevelling流动和流平的定义和流动和流平的定义的改进-Siliconestoadjustsurfaceslip有机硅调整滑爽-Acryliclevellingadditives丙烯酸流平剂-Siliconesurfactants有机硅表面活性剂-Dynamicsurfacetensionreduction降低动态表面张力-AcrylatedandOH-functionalproducts丙烯酸酯和羟基官能团产品-Silcleanforeasytocleansurfaces表面易清洁产品,Page3,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesDefinitionofsurfacetension表面张力的定义,Page4,PetervanDam,BYK-Chemie,PGMSurfaceAdditives•Moleculesinliquidshavearelativelyhighmobility分子在液体中能相对的高速移动•Inbetweenthemoleculestherearecohesiveforces分子间存在着内聚力•Thehigherthesecohesiveforcesare,thehigherthesurfacetensionwillbeWater73mN/m=strongcohesiveforceshydrocarbons23mN/m=nocohesiveforcesSurfacetension表面张力内聚力越大，表面张力越高水强内聚力烃没有内聚力,Page5,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesSurfacetension表面张力Liquid液体Gas气体,Page6,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesObjectiveswhenformulatingcoatings*涂料配方的目标-excellentflowandlevelling优异的流动性和流平性-sufficientsubstratewetting充分的底材润湿-nocrater没有缩孔-aredirectlyrelatedtothesurfacetensionofthiscoating直接关系到该涂料的表面张力-organicmodifiedsiliconesandacrylatesinfluencethesurfacetensioninsuchawaytoimprovetheseproperties有机改性有机硅和丙烯酸酯通过影响表面张力改善以上特性。,Page7,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesPolydimethylsiloxane聚二甲基硅氧烷(CH3)3SiOSiOSi(CH3)3CH3CH3xHammertone锤纹Flow流动Surfaceslip表面滑爽Defoaming消泡x2-2745-230380-15001800-2900Compatible相容Incompatible不相容,Page8,PetervanDam,BYK-Chemie,PGMSurfaceAdditives(CH3)3SiOSiOSiOSi(CH3)3CH3CH3yxAlkylmN/mCH3CH2CH3(CH2)9CH3212632Organicmodifiedsiloxane有机改性硅氧烷OrganicModificationAlkyl•Polyether聚醚(EO/PO)•Aralkyl芳烷基•Polyester聚酯•reactive反应型-Acrylic丙烯酸-COOH羧酸-OH羟基芳烷基有机改性,Page9,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesSubstratewetting*底材润湿Goodsubstratewetting:良好的底材润湿：paintsubstratenoadditive不含助剂0,1%BYK-333涂料底材,Page10,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesMeasuringsurfacetensionofliquidsusingtheDu-Nouyringmethod(static)使用提环法测量液体的静态表面张力=Fmax-FVL*cos,Page11,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesCMC(criticalmicelleconcentration)insolutionscontainingsurfactants溶液中含表面活性剂的临界胶束浓度1000075706560555045403530252015105011010010000Concentrationmg/LSurfacetensionmN/mSurfactant:表面活性剂Hydrophobic憎水(tail)尾Hydrophilic亲水(head)头WaterSurfaceAir含量表面张力,Page12,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesmN/mAdditivedosage助剂添加量0,050,1Substratewetting*底材润湿,Page13,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesVolumetoSurfaceArea*从体积到表面积50µm10µmV(olume)A(rea),Page14,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesReductionofsurfacetensionwithorganicmodifiedsiloxanes有改性有机硅氧烷降低表面张力Dosage添加量mN/mBYK-300BYK-320BYK-331302928272625BYK-310BYK-333Flow/LevellingSubstratewetting/AntiCratering流动流平底材润湿抗缩孔,Page15,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesOrientationoforganicmodifiedsiloxanes有机改性硅氧烷定向SiOCH3CH3SiOCH3(CH3)3SiSiOCH3CH3SiOCH3SiOCH3SiOCH3CH3SiOCH3CH3SiOCH3CH3SiOCH3OSi(CH3)3SiOCH3CH3SiOCH3SiOCH3SiOCH3SiOCH3CH3SiOCH3SiOCH3CH3SiOCH3CH3SiOCH3CH3(CH3)3SiOSi(CH3)3Substrate底材Paint油漆,Page16,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesTypicalsurfacetensions*各物质的表面张力whitespirit白电油Melamineresin氨基树脂80706050403020Phosphatizedsteel磷化钢材Water水Alkydresin醇酸树脂Acrylate丙烯酸酯SMC-Polyester聚酯mN/mSolvents溶剂Resins树脂Subtrates底材water-borne水性Xylene二甲苯Untreatedsteel无处理钢材Polypropylene聚丙烯,Page17,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesSubstratewettingandinterfacesduringcoatingapplication涂料施工中的底材润湿和界面状况Wetpaintwithsilicone=29mN/mSolventEvaporation溶剂挥发Paintwithsilicone=29mN/mWetpaintwithoutsilicone=30mN/mSolventEvaporation溶剂挥发Paintwithoutsilicone=33mN/m涂料不含有基硅Substrate=31mN/m底材,Page18,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesContactAngleMeasurement(KRÜSS)接触角度测量,Page19,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesContactanglemeasurement(sessiledrop)接触角度测量（座滴法）Substrate底材Contactanglesofliquids液体的接触角0°90°90°90°180°45°90°0°,Page20,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesMeasuringthesurfacetensionofsolids固体的表面张力测试Sessiledropmethod:座滴法：Measuringthecontactangleoffivedifferentliquidswithknownsurfacetensionandpolarities:用五种已知表面张力和极性的液体测量它们的接触角：-Water水（72.58×10-3）-Glycerine甘油（63.3×10-3）-Ethyleneglycol乙二醇（46.49×10-3）-Octanol辛醇（26.06×10-3）-Dodecan正十二烷(25.44×10-3)Byregressionanalysiscalculatethesurfacetensionofthesubstrate/drypaint通过回归分析计算底材和干膜的表面张力,Page21,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesSurfaceEffectsQ表面效果Causesforandovercomingofsurfacedefects表面缺陷的原因和解决办法,Page22,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesCrater(contaminationfromoutside)缩孔（受外因影响）Particle/粒子Droplet/液滴Dirt污垢(28mN)Paint油漆(30mN)Substrate底材32mN,Page23,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesCrater(contaminationofthesubstrate)缩孔（底材被污染）Droplet/Dirt液滴/污垢(28mN)Paint油漆(30mN)Substrate底材32mN,Page24,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesCraterformation缩孔的形成Paintdropletintowetpaint涂料滴进湿膜中left:samesurfacetension左：相同表面张力right:dropletwithlowersurfacetension右：液滴表