汽巴分散劑剖析課件

DISPEX帝派斯

AFAMILYOFANIONICDISPERSINGAGENTSFORWATERBASEDSYSTEMS

水性體系陰離子分散劑系列VISCALEX微樂斯&RHEOVIS瑞樂斯THICKENERSANDRHEOLOGYMODIFIERSFORWATERBASEDSYSTEMS水性體系增稠及流變改性劑?

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DISPEX帝派斯

AFAMILYOFANIO

DISPEX帝派斯AFAMILYOFANIONICDISPERSINGAGENTSFORWATERBASEDSYSTEMS水性體系陰離子分散劑系列Mr.ChrisWalkerHeadDecorativeCoatings–TechnicalServiceSegmentCoatingEffectsCibaSpecialtyChemicals汽巴精化全球技術(shù)經(jīng)理:ChrisWalker先生?

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DISPEX??DISPEXPRODUCTRANGEDISPEX產(chǎn)品系列

R50:Polycarboxylicacid.聚丙烯酸A40:Ammoniumpolycarboxylicacid.聚丙烯酸氨鹽N40:Sodiumpolycarboxylicacid.聚丙烯酸鈉鹽N100:Sodiumpolycarboxylicacid.聚丙烯酸鈉鹽GA40:Ammoniumpolycarboxylicacid/Carboxylicester.聚丙烯酸氨鹽/羧酸脂G40:Sodiumpolycarboxylicacid/Carboxylicester.聚丙烯酸鈉鹽/羧酸脂HDN:Sodiumpolycarboxylicacid/Carboxylicester.聚丙烯酸酸鈉鹽/羧酸脂DISPEXPRODUCTRANGEDISPETYPICALPROPERTIESOFDISPEXDISPERSING

AGENTS

DISPEX分散劑的基本特性?Dispexdispersingagentsarelowmolecularweightsolutionpolymerswithamolecularweightrangeof3500–20000Dispex分散劑是低分子量的可溶性聚合物,其分子量分布為3500~20000?Polymercompositionrangeis100%Carboxylicacidsto70%CarboxylicacidswithCarboxylicesterstodecreasethesolubilityofthedispersantinwater聚合物組成中羧酸為100%到70%.其余為羧酸脂用以降低可溶性.

?pHofthedispersingagentsaretypicallypH8.0分散劑的PH值一般為8.0DispexR50issuppliedatpH3DispexR50的PH值是3?Theappearanceofthedispersingagentsareclearyellowliquids

分散劑是清澈的黃色液體?DispexN100issuppliedinbeadformDispexN100是粒狀固體TYPICALPROPERTIESOFDISPEXDTYPICALPROPERTIESOFDISPEXDISPERSING

AGENTS

DISPEX分散劑的基本特性DispexGradePHYSICALPROPERPTY物理性能R50A40N40N100GA40G40HDNUN-neutralised未中和Ammoniumsalt氨鹽Sodiumsalt鈉鹽Activecontent%固含504040100404030Liquid/Solid液體/固體LLLSLLLHomopolyer均聚物Copolyer共聚物TYPICALPROPERTIESOFDISPEXDTHESTABILISATIONMECHANISMOFINORGANICPOWDERSUSINGANIONICDISPERSANTS

陰離子分散劑的分散機理

聚合物鏈鈉鹽離子化顏料顆粒吸引負電荷聚合物鏈吸引中和顏料顆粒的正電荷THESTABILISATIONMECHANISMOFDETERMININGTHEADDITIONLEVELOFADISPERSANTFORINORGANICPOWDERS

無機顏料分散劑用量評估?Thecorrectdosagelevelisfoundbyincrementaladditionsofthedispersanttoapowderslurry.Theslurryisefficientlymixedaftereachadditionandtheviscosityismeasured,usingforexampleaBrookfieldRVTviscometer.

準確用量的確定:向顏料漿逐漸增加分散劑,每次加入后充分攪拌.并測量漿料粘度(BrookfieldRVT粘度計)?Viscosityvs.%drydispersant/drypigmentisplotted.Theviscosityminimaisthe“OptimumViscosity”,thedispersantdosagelevelatthisviscosityisthecalled“OptimumDosage”.

粘度和分散劑干重/干粉重量比是有關(guān)的.粘度達到最低的”理想粘度”,時此時分散劑的添加量就是”理想用量”?TypicaldosagelevelsofDispexgradesare0.05-0.5%drydispersant/drypowder.

一般分散劑的添加量是0.05~0.5%分散劑(干重)/干粉重量比DETERMININGTHEADDITIONLEVELDISPERSIONOFA78%SOLIDSCONTENTCALCIUMCARBONATESLURRY.

78%固含的碳酸鈣漿的粘度/分散劑用量曲線

分散劑(干重)/干粉重量比粘度DISPERSIONOFA78%SOLIDSCONKRONOS2190(TiO2)75%solidscontent

75%鈦白漿粘度/分散劑用量曲線

粘度分散劑(干重)/干粉重量比KRONOS2190(TiO2)75%solidsCalciumcarbonate82%solidscontent82%碳酸鈣分散劑干重/干粉重量比粘度Calciumcarbonate82%solidscEFFECTOFSYSTEMpHONDISPERSIONPERFORMANCEPH值對分散的影響理想用量粘度EFFECTOFSYSTEMpHONDISPERS

Dispersantevaluationina40%PVCwaterbasedemulsionpaintsystem分散劑效力的評估40%PVC的乳膠漆

Formulationdetails配方PVC40%Solidscontent固含50%pH8.5ViscosityBfdRVT20rpm布氏粘度7500mPa.sProduct組分Level(byweight)添加量(按重量)Water水29.7Defoamer消泡劑0.5Biocide殺菌劑0.2Dispersant分散劑X(1.5timesoptimum)(1.5倍理想用量)PigmentTiO2鈦白15.2Calciumcarbonate碳酸鈣10.3Dolomite白云石9.8BinderSty/Ac填料32.5Co-solvent助溶劑1.0pHadjustorPH調(diào)節(jié)TopH8.5HASEThickener增稠劑0.7Total合計100(+Ｘ）Formulationdetails配方PVC4DispersionofTiO2/CalciumCarbonate/Dolomite

blendat75%solidscontentslurry

75%的鈦白/碳酸鈣/白云石漿分散劑(干重)/干粉重量比DispersionofTiO2/CalciumCarCalculatedadditionlevels添加用量計算Product產(chǎn)品1.5XOptimumdrydosage1.5倍理想用量DispexN400.40Kg/100KgPowdersDispexA400.48Kg/100KgPowdersDispexG400.56Kg/100KgPowdersDispexHDN0.68Kg/100KgPowdersSTPP0.54Kg/100KgPowdersCalculatedadditionlevelsWetscrubresistanceina40%PVCwaterbasedinterioremulsionpaintsystem

40%PVC內(nèi)墻乳膠漆的抗擦洗性Wetscrubresistanceina40%P60°Glossina40%PVCwaterbasedemulsionpaintsystem40%PVC乳膠漆的60度光澤60°Glossina40%PVCwaterbas40%PVCANTI-CORROSIVEPAINTSYSTEM

40%PVC防腐漆配方Component組分Level(pbw)Water水PropyleneGlycol丙二醇Dispersant分散劑TitaniumDioxide二氧化鈦CalciumCarbonate碳酸鈣Aluminiumtriphosphate三磷酸鋁AcrylicBinder丙烯酸樹脂Coalescent成膜助劑Thickener增稠劑pHBufferPH緩沖劑25.01.51.5xoptimumdosage1.5倍理想用量14.015.56.036.00.71.3TopH8.040%PVCANTI-CORROSIVEPAINTSDISPERSANTSDOSAGESREQUIREDFORTHE

ANTI-CORROSIVEPAINTPIGMENTSYSTEM

防腐漆的分散劑用量Product產(chǎn)品AdditionLevel(%dry/dry)(1.5xOptimumdosage)添加量(固含%)(1.5倍理想用量)DispexN400.12DispexG400.15DispexHDN0.19DISPERSANTSDOSAGESREQUIREDFSTABILITYRESULTS穩(wěn)定性?DispexHDNrecommendedforreactivepigmentsystems!DispexHDN推薦用于含有反應(yīng)性顏料的體系!Product產(chǎn)品7DayPaintStability7天穩(wěn)定性DispexN40Flocculated(1day)絮凝(一天)DispexG40Gelled膠凝DispexHDNStable穩(wěn)定STABILITYRESULTS穩(wěn)定性?DisDISPERSANT/GLYCOLCOMPATIBILITYMETHODOLOGY分散劑/二元醇的相容性GlycolCompatibility二元醇相容性Component組分p.b.wGlycolstested二元醇測試Dispersant(20%solids)-50gEthylene乙二醇分散劑(20%固含)Glycol二元醇-50gPropylene丙二醇TOTAL合計100gButylene丁二醇Hexylene己二醇Methodology檢測方法Dispersantsolutionaddedtotheglycol.分散劑溶液添加到二元醇中Themixtureisshakenvigorouslyfor3minutes.混合液搖動3分鐘Dispersantstabilityisassessedafter10minutes.10分鐘后測穩(wěn)定性DISPERSANT/GLYCOLCOMPATIBILITCOMPARATIVEGLYCOLCOMPATIBILITYOF

DISPERSINGAGENTS分散劑的二元醇相容性比較Rating注意1.Homogenoussolution純?nèi)芤?.Phaseseparation相位分離3.mixtureispartiallygelatinous混合液部分凝膠Dispersant分散劑Ethyleneglycol乙二醇Propyleneglycol丙二醇Butyleneglycol丁二醇Hexyleneglycol己二醇DispexN401232DispexG401122DispexHDN1122COMPARATIVEGLYCOLCOMPATIBILIDISPERSANTFOAMINGPROPERTIES

METHODOLOGY分散劑起泡性測試方法Methodology方法Pour40mlofdispersantsolution(pre-dilutedto20%solidscontent)intoastopperedmeasuringcylinder(100ml).40毫升的分散劑溶液(沖淡到20%固含)倒入100毫升的量筒中Reciprocatethecylinderfor5cycles.來回晃動量筒5次Volumeoffoamismeasuredafter10seconds.10秒后測泡沫的高度DISPERSANTFOAMINGPROPERTIES

DISPERSANTFOAMINGPROPERTIES

METHODOLOGY分散劑起泡性測試方法Product產(chǎn)品Foamheight(mls)泡沫高度(毫升)Product產(chǎn)品Foamheight(mls)泡沫高度(毫升)DispexN402DispexA404DispexG4022DispexGA4020DispexHDN4DISPERSANTFOAMINGPROPERTIES

ReasonsforchoosingaHomopolymer

選擇均聚物型分散劑的好處DispexN40,DispexA40,DispexR50,DispexN100

Advantages:好處Generallylowercostthancopolymerproduct比共聚物的成本低Generallymoreefficientthancopolymerproduct比共聚物有效Generallylessfoam