《德国毕克表面助剂》PPT课件

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1、Jakarta,JWA+BYKSeminar,22.04.2009,PetervanDamSurfaceAdditives表面助剂SiliconesandAcrylates有机硅和丙烯酸酯,Page2,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesTopicsSurfacetensiontheory表面张力理论Siliconestoimprovesubstratewetting有机硅促进底材润湿Formationandpreventionofcraters缩孔的形

2、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Silcleanfor

3、easytocleansurfaces表面易清洁产品,Page3,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesMoleculesinliquidshavearelativelyhighmobility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,thehigherthesurfacetensionwillbeWat

4、er73mN/m=strongcohesiveforceshydrocarbons23mN/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,Page4,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesSurfacetension表面张力Liquid液体Gas气体,Page5,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesObjectiveswhenformu

5、latingcoatings*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organicmodifiedsiliconesandacrylatesinfluencethesurfacetensioninsuchawaytoimprovethesepr

6、operties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。,Page6,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,Page7,PetervanD

7、am,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,Page8,PetervanDam

8、,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,Page9,PetervanDam,BYK-Chemie,PGMSurfaceAdditivesMeasuringsurfacetensionofliquidsusingtheDu-Nouyrin