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1、BYK潤濕分散劑畢克化學(xué)技術(shù)咨詢(上海)有限公司Contents內(nèi)容BasicsofPigmentStabilization顏料穩(wěn)定基礎(chǔ)知識StabilizationMechanisms穩(wěn)定機理InteractionW/DAdditiveswithPigments潤濕分散劑與顏料的相互作用FormulationGuidelines(AdditiveDosage,EvaluationMethods)配方指導(dǎo)(助劑添加量、評價方法)WettingandDispersingAdditivesbasedon潤濕分散劑基于EstablishedTe
2、chnologies成熟技術(shù)CPT可控聚合技術(shù)AdditiveRecommendation–Quickreference助劑推薦-快速參考Drypigment干顏料Dispersion分散Primaryparticles原始顆粒(idealdispersion)理想的分散狀態(tài)Agglomerates聚集體Pigmentinresinsolution顏料在樹脂溶液中DeflocculationofAgglomerates聚集體的解絮凝ParticleSizeVersusSurfaceArea粒徑與比表面積對比Pigment顏料Particl
3、esize顆粒大小(μm)Surfacearea比表面積(m2/g)Ironoxidered氧化鐵紅0.25012Carbonblack1炭黑10.09520Phthaloblue酞菁藍(lán)0.07064Carbonblack2炭黑20.013460WettingandDispersingProcess潤濕分散過程2Dispersing分散1Wetting潤濕3Stabilization穩(wěn)定StepsofStabilization穩(wěn)定步驟Reduced:降低-settling沉降-sagging流掛flood&float浮色發(fā)花strongf
4、lood&float嚴(yán)重浮色發(fā)花highviscosities高粘度Reduced:降低-colorstrength色強-gloss光澤-lessflood&float更少浮色發(fā)花-highergloss更高光澤-lowviscosity低粘度highestcolour最高的色強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光澤、霧影、遮蓋率Improved提高Slightlyreduced輕微降低Anti-settling,sagcontrol抗沉降、流掛控制Reduced變差I(lǐng)mproved提高Contr.Flocculation受控絮凝Flooding&floatingcontrol浮色發(fā)花控制TOPCOATS,面漆highgloss高光PRIMERS,highbuildlow–mediumglosscoatings底漆,厚涂層低-中光澤涂料Idealfor:最好用于:Wettin
6、gandDispersingAdditives–Effects潤濕分散劑-效果Deflocculation解絮凝型Appearance外觀ControlledFlocculation可控絮凝型Protection保護TypesofStabilization穩(wěn)定的類型Electrostaticstabilization靜電穩(wěn)定Stericstabilization位阻穩(wěn)定(osmotic/entropicrepulsion)滲透/熵排斥electrostaticstabilizationmainlyinwater-bornesystems(
7、e.g.,emulsions)靜電穩(wěn)定主要在水性體系里(例如乳液)stericstabilizationinsolvent-andwater-bornesystems位阻穩(wěn)定在溶劑以及水性體系combinationofbothmechanismsinwater-bornesystems水性體系中兩種機理結(jié)合WettingandDispersing潤濕與分散Toselecttherightadditive,youneedtoknow:要選擇合適的助劑,你需要知道:Polarityofthesystem(low,medium,high…)系統(tǒng)
8、的極性(低中高)Typeofthecoating(primer,topcoat,basecoat…)涂料的類型(底漆、面漆、底色漆)Pigmentation:pigmenttype(organ