BYK流变助剂

LiquidrheologycontroladditivesforPaintIndustry涂料用液态流变控制助剂PresentedbyAlecLi,李玉桂ProductGroupManager-Rheology流变助剂产品经理BYKSolutions(Shanghai)Co.,Ltd12.7.2BYKProductOverew:SagResistance,Anti-SettlingandViscosityControlBYK液态流变控制助剂:防流挂,防沉淀及粘度控制•BYK-410•BYK-411•BYK-420•BYK-425•BYK-430•BYK-431•BYK-428•BYK-41512.7.2ViscosityProfileDependantontheShearRate粘度与剪切速率有关0,10.010.11101001000100000.001shearrate剪切速率D(1/s)(Pa·s)100101canviscosityunderstirring搅拌下的罐内粘度BrookfieldKrebs-StormerHIGHSHEAR高剪切LOWSHEAR低剪切MEDIUMSHEAR中等剪切Viscosity粘度Storage贮存Transportation运输Production生产Leveling流平Settling沉降Rotationalviscometer旋转粘度计Flowcup4mm4mm流动杯ICIcone/plate锥板粘度计Sagging流挂Application施工12.7.20.010.11101001000100000.0010,1100101ViscosityProfilewithPseudoplasticFlowControlAdditives含假塑性流动控制助剂的粘度范围Application施工Stirring搅拌Grinding研磨highmolecularweightchainsathighshear,entanglement,orientedinflowdirection高分子量链在高剪切力下互相纠缠，按流动方向定向Storage贮存Settling沉降–leveling/sagging流平/流挂Transportation运输Highermolecularweightbasedproducts高分子量产品e.g.:Polyamides聚酰胺(e.g.BYK-430/431)Castoroilderivatives蓖麻油衍生物Polyurethane聚氨酯(e.g.BYK-425)Alkalineswellableemulsions碱溶胀性乳液Cellulosic纤维素viscosity粘度(Pa·s)shearrate剪切率D(1/s)highermolecularweightchainsatrest,tangled,structurebuildsupviaassoziationwithresinandpigments高分子量链在静止时缠结，通过树脂和颜料间的缔合形成结构12.7.20.010.11101001000100000.0010,1100101ViscosityProfilewithThixopropicFlowControlAdditives含触变性流动控制助剂的粘度范围particlesorientedintheflowdirection,nonetworkformationundershear颗粒按流动方向定向，在剪切力下没有网络结构Lowerparticlesizebasedproducts低颗粒大小产品e.g.:Ureachemistry脲化学(BYK-410,411,420)Claybasedproducts膨润土产品(Bentonites)Fumedsilica气相二氧化硅(Aerosil)additiveparticlesbuildup3D-networkviahydrogenbondings通过氢键，助剂颗粒建立起3维结构Application施工Stirring搅拌Grinding研磨Storage贮存Settling沉降–leveling/sagging流平/流挂Transportation运输viscosity粘度(Pa·s)shearrate剪切率D(1/s)12.7.2ProductDifferentiationAccordingtoPolarityandFlowProperties系列产品应用于不同极性体系,产生不同的流变效果BYK-410BYK-411BYK-420Nonpolarsystems非极性体系Polarsystems极性体系BYK-430BYK-431BYK-425Faststructurerecovery粘度结构恢复快Highbuildapplications厚涂施工Sagresistance防流挂Improvementof“in-canviscosity“增加罐内粘度Pseudoplasticflow-Mainadvantage:假塑性流动–优点Thixotropicflow-Mainadvantage:触变性流动–优点Anti-settling防沉淀Leveling流平Shearthinning剪切变稀Lowapplicationviscosity低施工粘度Postcorrection后粘度调整12.7.2BYK-411BYK-410BYK-420BYK-431BYK-430BYK-425•Imediatestructurerecoveryaftershear剪切后结构立即恢复•Excellentsagresistanceevenforhighbuildsystems即使用于厚膜体系也有优异的抗流挂性•Antisettlingpropertiesdependantontheadjustedstorageviscosity防沉降性受贮存粘度调整的影响•Structurerecoveryaftersheardependsontimeanddosage剪切后的结构恢复和时间及用量有关•Pronouncedshear-thinningeffect显著的剪切变稀效果•Idealproductperformancetoadjustleveling-andsagresistancebalance调整流平和抗流挂平衡有理想的效果•Airreleaseproperties脱泡性能LiquidRheologyAdditives:Differentiation液态流变助剂的区别Polarsystems极性体系Non-polarsystems非极性体系Thixotropicflow触变性流动:Pseudoplasticflow假塑性流动:12.7.2BYK-410,BYK-411,BYK-420:ThixopropyAdditivesBasedonModifiedUrea基于改性脲的触变助剂BYK-410BYK-411BYK-420Ureagroups脲基团Highpolarity高极性Mediumpolarity中等极性Lowpolarity低极性Modifyinggroups改性基团:12.7.2ModeofAction作用机理Incorporationunderstirring搅拌加入Networkbuildup建立网络Result:Strongthixotropicflowbehavior结果：形成强烈的触变性流动Activesubstanceprecipitatesinformofmicrocrystals活性物质以微小晶体析出Structureformationviahydrogenbondings通过氢键形成结构12.7.2BYK-410:EfficiencyDependsonPolarityofSystemBYK-410:效力与体系极性有关toonon-polar极性太低toopolar极性太高Whitespirits石油溶剂Xylene二甲苯Butylacetate醋酸丁酯Water水Isopropanol异丙醇Compatible相容Diacetonealcohol二丙酮醇Butanol丁醇Isobutanol异丁醇Butylglycol乙二醇丁醚Propylenglycol-Monomethylether丙二醇单甲醚Xylol二甲苯/n-Butanol正丁醇=80/20Butylacetate醋酸丁酯/DowanolPM丙二醇单甲醚=75/25Suitablesolventmixtures合适的溶剂混合物:!12.7.2BYK-420RheologyAdditiveforThixotropicFlowControlinWaterBornSystemsandPigmentConcentrates水性体系和颜料浓缩浆用触变性流动流变控制助剂12.7.2BYK-420:RheologyControlinAqueousSystems在水性体系中的流变控制Homogenous,rapidincorporation:均匀快速添加excellentthickeningeffect优异的增稠效果homogenoues,noparticles均相无颗粒Inhomogenouesincorporation:不均匀添加nothickeningeffect无增稠效果inhomogenoues,particles不均匀，有颗粒12.7.2BYK-420:EffectiveThickeningofPureWater在纯水中的增稠效果105210,50,20,10,05150100500Viscosity粘度Passhearrate剪切速率D(1/s)BYK-4201%activeloading活性成分Acrylatethickener1%activeloading活性成分丙烯酸酯增稠剂Syntheticclay1%activeloading活性成分合成陶土Naturalclay天然陶土2%activeloading活性成分Fumedsilica气相二氧化硅5%activeloading活性成分12.7.2BYK-420:CompatibilityTest相容性测试Particles/seedsvisible可见颗粒/析出Compatibilityimprovementpossibleusingco-solventsandwetting/dispersingadditives选择合适的助溶剂和润湿分散剂可改进相容性Noparticles/noseeds无颗粒/无析出andrheologicaleffect并有流变效果Compatibilityisacceptable,noformulationchangesareNecessary相容性可接受,无须改变配方2.Compatibilitytest相容性测试visualjudgementofcompatibility目测评价(particles/seeds)andrheologicaleffect（颗粒/析出）以及流变效果1.AdditionofBYK-420tothenon-pigmentedformulation将BYK-420加到不含颜料的配方中(homogeneousmixing均相混合)12.7.2BYK-420inAqueousEffectPigmentSlurry在水性效应颜料浆中1.Water水50,0–68,72.Co-solvents助溶剂5,0–10,0(e.g.,glycolsandglycolethers如，二元醇，二元醇醚)3.DISPERBYK-190orDISPERBYK-1921,0–3,04.Effectpigment25,0–35,0效应颜料5.BYK-4200,3–1,0(incorporationunderstirring搅拌下添加)12.7.2•Improvesanti–settling改善抗沉降性•Improvesant