Allnex---WB-Macrynal-Bilingual-Final

AdvancedPerformancesofWaterborne2KPolyurethaneCoatingswith2ndGenerationHydroxylAcrylicDispersion第二代高性能羟基丙烯酸树脂水性双组分涂料的优越表现Introduction介绍•Solventborne2componentpolyurethanes(2KPU)haveformanyyearsbeencommonlyusedforhighperformancecoatingswhichcureatroomtemp.2KPUisusedformanyapplicationsincludingprotectivecoatings,carrefinishcoatings,plasticcoatings,woodcoatingsandarchitecturalcoatings.However,duetotheconcernslinkedtotheirhighvolatileorganiccompounds(VOC)contents,waterbornealternativeswithcomparableperformancesandapplicationwindowsareneeded.长久以来，溶剂型PU在汽车，塑胶，木器和建筑涂料中应用广泛。而近期由于VOC因素，水性双组分PU(2KPU)将取代溶剂型双组分PUIntroduction介绍•Allnexdevelopedaseriesofhydroxyl-functionalpolyacrylicsecondarydispersionswithverygoodstabilityandcompatibility.Thedispersioncanbehandmixedwithawiderangeofsolventfreeandhydrophilizedpolyisocyanates.Thisovercomesissueofinconsistentqualityduetothefactthatmechanicalmixingisnotalwaysavailableduringapplication.湛新研发了一系列具有优异稳定性和兼容性的第二代水性羟基丙烯酸树脂，它可以与大部分水性异氰酸酯混合，（这点在这个应用领域不常见。）克服了应用时不能总是机械搅拌引起的质量不稳定。•Mostimportantly,thedispersionsdemonstratedverygoodreactivitywithpolyisocyanates.Thecoatingsdemonstratecomparableperformancetothesolventborne2Ksystems.最重要的，分散体的交联密度高，涂膜性能可与溶剂型双组分PU媲美。ProductRange产品范围Keypropertiesandareasofapplications主要性能和应用领域MACRYNAL™FormofsupplyOHcontent(solids)PropertiesandareasofapplicationVSM2521w42%WAB4,2%Highhardness,quickdrying,highchem.resistance,forwoodcoatingsandascombinationalresin硬度高，快干，耐化学品性能佳，可复配VSM6299w42%WA4,1%Applicationpropertiesin-betweenVSM2521wandSM6810w,wellbalancedoverallproperties性能处于VSM2521W和SM6810W之间SM6810w42%WA4,1%Highblisterfreefilmthickness,longertackfreetimeandslowerdryingthanVSM6299w,highglossapplications厚膜无针孔，高光泽SM6817w44%WA3,0%Quickdrying,forgeneralindustrialapplications,lowisocyanatedemand快干，异氰酸酯用量少HydrophilicStructureOHPrimaryhydroxylfunctionalacrylicdispersionExternallyemulsified外乳化第一代分散体Lowmolecularsurfactants低分子量表面活性剂MACRYNALSecondaryhydroxylfunctionalacrylicdispersion(internallyemulsified)第二代分散体（内乳化）Highmolecularemulsifyingcomponent高分子量乳化剂SurfactantResinparticleMorphologyofHydroxylFunctionalAcrylicDispersion羟基丙烯酸分散体的形态OHOHOHOHComparisonSelfvsExternallyEmulsified一级分散体与二级分散体对比PrimarySecondaryEmulsification乳化形式Externallyemulsified外乳化Selfemulsified自乳化Mw100k100kManufacturing生产Easy简单Complex复杂Susceptibletoexternalinfluences稳定性Notstable不稳定Stable稳定Particlesize粒径+++(80-120nm)MFFT最低成膜温度low-highMFFT低-高near0˚C接近0度Storagestability储存稳定性+++Shelflife保质期Poor差Verygood非常好Shearstability剪切稳定性Poor差Good好Directpigmentation可否直接添加颜填料Notpossible不可以Possible可以Compatibility兼容性•MACRYNALshowsgoodcompatibilitywithvariouspolyisocyanatesandpartnerresins.MACRYNAL可以和无溶剂或水性异氰酸酯手搅混合•Itcanbehandmixedwithsolventfreeandhydrophilizedisocyanateswithoutneedtopre-dilutetheisocyanateswithsolvents.可以与无溶剂或者水性异氰酸酯手工搅拌，不用预先稀释异氰酸酯Thisovercomeissueofinconsistencequalityduetothefactthatmechanicalmixingisnotalwaysavailableduringapplication.手搅形式在市面上不常见ReducesVOC低VOCPotlifeof4hourscanbeachievedwithpropermatchingofresins,polyisocyanaytesandformulations.配方得当的话，活化期为4hrMACRYNALPotlifeSelf-emulsifiedHDIIPDIModifiedHDIVSM6299w4hour4hourSM6810w3hour4hourSM6817w3hour2hourVSM2521w2hour2hourGlossLevel光泽•Goodcompatibilitywithvarioushydrophilizedpolyisocyanatesandpartnerresinsallowedformulatingoffullglosssystems.与水性异氰酸酯兼容性好是高光产品的前提。•Canbehandmixedwithhydrophilizedpolyisocyanateswithoutneedtopre-dilutethepolyisocyanateswithsolvents.手搅，无须预稀释MACRYNALSelf-emulsifiedHDIIPDIModifiedHDIGlosslevel(7day)20˚/60˚20˚/60˚VSM6299w34/9266/88SM6810w44/9063/87SM6817w29/7267/90VSM2521w18/5962/91GlossLevel光泽•Withconventional100%activesolventbornepolyisocyanates,MACRYNALachievedlowglosslevelormattfinisheswithgoodtransparency.与常规的100％活性溶剂型聚异氰酸酯结合使用,MACRYNAL呈低光泽度，但透明度良好11Glossretentionofwhitepigmentedtopcoats白色面漆的保光性FloridaWeathering耐候性测试LowMolecularWeight(Mw)低分子量•MACRYNALhasrelativelylowMw.较低分子量•LowMFFT.Donotneedadditionalcoalescencesolventsforfilmforming.较低MFFT，无须添加成膜助剂•HighOHvaluehighcross-linkingdensity.高羟值，高交联密度•HighReactivity.高活性•Goodtransparency透明性好•Noexternalsurfactantgoodcorrosionandwaterresistance.无外乳化剂，优异的耐腐蚀和耐水性。•Shearstableandgoodpigmentwettingproperties.Allowmoreformulationflexibility.良好的剪切稳定性和颜料润湿性。配方灵活。Reactivity反应活性MACRYNALhassmallerparticlesizehighersurfacearea粒径更小Highercross-linkingdensity.更高交联密度Betterfilmintegrationandfilmformation.成膜性能佳Performances性能MACRYNALSM6817wVSM2521wVSM6299wSM6810wOHcontent(onsolid)3,0%4,2%4,1%4,1%Pendulumhardness(RTafter24h/7d)26“/37“54“/62“44“/50“36“/78“Pendulumhardness(45min60°C-24h7d)58“/71“117“/121“92“/94“65“/106“Blisterfreefilmthickness69µm35µm65µm87µmTackfreetime3hrs.3hrs.6hrs.8hrs.Acetoneresistance(7d)30s1min30s1minXyleneresistance(7d)5min10min9min10minVOC175g/l190g/l190g/l185g/lWhitetopcoatsbasedonMACRYNAL+externallyemulsifiedpolyisocyanate白色面漆+外乳化型异氰酸酯(OH:NCO1:1,4)BlisterFreeDryFilmThickness施工无微泡干膜厚度Blisterfreedryfilmthickness(µm)无微泡干膜厚度(µm)OHcontentonsolidbinder(%)1.02.03.04.05.03060907080SM6817wSM6810wVSM2521w5040VSM6299wDryingProperties干燥性能102030405012345678SM6817wVSM2521wVSM