BYK 润湿分散剂

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1、BYK润湿分散剂毕克化学技术咨询（上海）有限公司Contents内容BasicsofPigmentStabilization颜料稳定基础知识StabilizationMechanisms稳定机理InteractionW/DAdditiveswithPigments润湿分散剂与颜料的相互作用FormulationGuidelines(AdditiveDosage,EvaluationMethods)配方指导（助剂添加量、评价方法）WettingandDispersingAdditivesbasedon润湿分散剂基于EstablishedTe

2、chnologies成熟技术CPT可控聚合技术AdditiveRecommendation–Quickreference助剂推荐-快速参考Drypigment干颜料Dispersion分散Primaryparticles原始颗粒(idealdispersion)理想的分散状态Agglomerates聚集体Pigmentinresinsolution颜料在树脂溶液中DeflocculationofAgglomerates聚集体的解絮凝ParticleSizeVersusSurfaceArea粒径与比表面积对比Pigment颜料Particl

3、esize颗粒大小(µm)Surfacearea比表面积(m2/g)Ironoxidered氧化铁红0.25012Carbonblack1炭黑10.09520Phthaloblue酞菁蓝0.07064Carbonblack2炭黑20.013460WettingandDispersingProcess润湿分散过程2Dispersing分散1Wetting润湿3Stabilization稳定StepsofStabilization稳定步骤Reduced:降低-settling沉降-sagging流挂flood&float浮色发花strongf

4、lood&float严重浮色发花highviscosities高粘度Reduced:降低-colorstrength色强-gloss光泽-lessflood&float更少浮色发花-highergloss更高光泽-lowviscosity低粘度highestcolour最高的色强strengthControlledFlocculation受控絮凝Flocculation絮凝Deflocculation解絮凝Improved提高Improved提高Deflocculation解絮凝Deflocculation/ControlledFlocc

5、ulation解絮凝/受控絮凝Gloss,hazeHidingpower光泽、雾影、遮盖率Improved提高Slightlyreduced轻微降低Anti-settling,sagcontrol抗沉降、流挂控制Reduced变差Improved提高Contr.Flocculation受控絮凝Flooding&floatingcontrol浮色发花控制TOPCOATS,面漆highgloss高光PRIMERS,highbuildlow–mediumglosscoatings底漆，厚涂层低-中光泽涂料Idealfor:最好用于：Wettin

6、gandDispersingAdditives–Effects润湿分散剂-效果Deflocculation解絮凝型Appearance外观ControlledFlocculation可控絮凝型Protection保护TypesofStabilization稳定的类型Electrostaticstabilization静电稳定Stericstabilization位阻稳定(osmotic/entropicrepulsion)渗透/熵排斥electrostaticstabilizationmainlyinwater-bornesystems(

7、e.g.,emulsions)静电稳定主要在水性体系里（例如乳液）stericstabilizationinsolvent-andwater-bornesystems位阻稳定在溶剂以及水性体系combinationofbothmechanismsinwater-bornesystems水性体系中两种机理结合WettingandDispersing润湿与分散Toselecttherightadditive,youneedtoknow:要选择合适的助剂，你需要知道：Polarityofthesystem(low,medium,high…)系统

8、的极性（低中高）Typeofthecoating(primer,topcoat,basecoat…)涂料的类型（底漆、面漆、底色漆）Pigmentation:pigmenttype(organ