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(fù)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(zhǔn)確用量的確定:向顏料漿逐漸增加分散劑,每次加入后充分?jǐn)嚢?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