BASF_HR_Ultradur_PBT__Presentation

Ultradur®HydrolysisResistantPBTCommercialandDevelopmentGrades2WhatisHydrolysisResistant(HR)PBT?„APBTthatretainsit’spropertiesafterexposuretohighheatandhumidity.zStandardPBTwilldepolymerize(unzip)undertheseconditions.„DevelopedmainlyfortheAutoE/Emarket(e.g.,connectors,sensorhousings).„SpecificationDrivenzFord–1000hoursat85%RHand85oCzUSCARConnectorSpec–Class3125oCtemprating.„AutoE/EapplicationsmovingforwardinthevehiclezStandardPBTislimitedtothecabinandtrunkareas.zHRPBTisviableinhotterareas(instrumentpanels,enginecompartmentperiphery).3CommercialUltradur®HRPBTProducts„CurrentClassificationasGG(GlobalGrade)zMaterialisavailableforallapplicationszMaterialisavailablegloballyinNAFTA,Europe,andAsia.„Productionmaterialsamplesareimmediatelyavailable.„Suitableforapplicationsrequiringsuperiorhydrolysisresistance,highstrength,laserwelding,andhighflowmoldingperformance.„NotsuitedforapplicationsrequiringNaOHexposure.B4300G6HRBK15116&UNC30%GFPBT4DevelopmentUltradur®HRPBTProducts„WillbeclassifiedasaGG(GlobalGrade)zMaterialwillbeavailableforallapplicationsinBlackandUncolored.zMaterialwillbeavailablegloballyintheNAFTA,Europe,andAsiaregions.„Suitableforapplicationsrequiringsuperiorhydrolysisresistance,highstrength,laserwelding,andhighflowmoldingperformance.„SuitableforapplicationswhereexposedtoNaOH.zCustomerisresponsiblefordeterminingsuitabilityofmaterialuseintheapplication.XB7355BK,UNC30%GFModifiedPBTBlendXA7362BK,UNCUnfilledModifiedPBTXA7365BK,UNC15%GFModifiedPBTB4330G6HRBK,UNC30%GFModifiedPBTNaOHtestingtobecompletedSamplesareavailablefortrialpurposes5HydrolysisResistanceTestResultsAlthoughallstatementsandinformationinthispublicationarebelievedtobeaccurateandreliable,theyarepresentedwithoutguaranteeorwarrantyofanykind,expressorimplied,andrisksandliabilityforresultsobtainedbyuseoftheproductsorapplicationofthesuggestionsdescribedareassumedbytheuser.Werecommendyouconducttestingtoultimatelydeterminesuitabilityofaproductforyourparticularpurposepriortouse.Statementsorsuggestionsconcerningpossibleuseoftheproductsaremadewithoutrepresentationorwarrantythatanysuchuseisfreeofpatentinfringementandarenotrecommendationstoinfringeanypatent.Theusershouldnotassumethattoxicitydataandsafetymeasuresareindicatedorthatothermeasuresmaynotberequired.UltradurUltradurUltradurUltradurUltradurBenchmarkBenchmarkBenchmarkPROPERTYB4300G6UncoloredXB7355BlackXB7355UncoloredB4300G6HRUncoloredB4330G6HRCompetitor1Competitor2Competitor2ProductAProductBTensilestrength,MPa145112117139110117128122Tensilestrengthafterconditioning*,MPa30108104116100927819%Retention21%96%89%83%91%78%60%16%TensileElongation,%2.843.93.253.82.62.7TensileElongationafterconditioning*,%0.42.92.92.63.12.11.20.5%Retention14%73%74%81%62%55%46%19%CharpyImpact,kJ/m27270787475694544CharpyImpactafterconditioning*,kJ/m27.45958456041134%Retention10%84%74%61%80%59%30%9%CommentsNonHRProductHRProductwithNaOHResistantHRProductwithNaOHResistanceHRProductHRProductwithNaOHResistanceHRProduct,failedinNaOHHRProduct,failedinNaOHNonHRProductThesampleswereconditionedat110C/100%RHfor10daysUltradurHydrolysisResistanceComparison6Ultradur®B4330G6HRHydrolysis&NaOHresistantPBTAutomotiveplasticpartapplicationshavetoexistinharshenvironmentsthatcontainchemicalssuchasroadsaltspray.Thiswouldrelatetoareasofthecarsuchasfenders,wheelwells,doorsandtherearofthevehicle.Roadsaltsprayistypicallystillunrefinedsodiumchloride(NaCl)andwater.Becausesaltsolutionisanelectrolyte,caremustbetakentochoosesimilarmaterialsofconstruction.Experienceshowsthatmetalsneedtobewithin0.15Vofeachotherintermsoftheirgalvanicindex(corrosionpotential)orgalvaniccorrosioncantakeplace.Forexample,lowcarbonorplaincarbonsteelhasavalueof0.85Vwhereaszinccoatedsteelhasavalueof1.20V.Thiswouldnotmakethemgoodchoicesforanelectricallyconnectedsystem.Thezincplatedsamplewouldbecomesacrificialinthepresenceofelectricityandanelectrolyte(saltwater).Aplatedsteelpartmaynotbeseenasadifferentmaterialunlesstheplatingiscompromisedduringassembly(scratched)exposingtheplaincarbonsteel.Corrosionbyproductscanalsobuilduponthesurfaceofthepartsandpossiblyincreasetheeffectofelectricalconduction.Whenenergyispresentinthesystem,itisalsopossiblethatsaltsolutionmaybecomeamoreaggressivesolutionofsodiumhydroxideanddilutehydrochloricacid.ItispossiblethatthissolutionofNaCl+H2O+energycanbecomeNaOH+HCl+water.Thischangemightbetemporary,butthedamagecanbeseveretomaterials,includingplastics,inthepresenceofstrongbaseslikesodiumhydroxide.UltradurB4330G6HRPBTwasdevelopedtobehydrolysisresistant.Inaddition,itcombatschemicalattack,suchasexposuretosodiumhydroxide,andcrackingduetohighresidualstrainsduetoslightlyoversizedinsertsandotherdesignconstraints.Ingeneral,appropriatechoiceofmaterialsforallcomponentsiscrucialtoavoidfailuresofapart.Chemicalattackisaconcernforbothmetalsandplastics.NaCl+H2O+energy=NaOH+HCl+waterNaCl+H2ONaCl+H2ONaCl+H2ONaCl+H2OZinccoatedsteelboltandbushinginsertedintoplastichousingNaOHNaOHNaOHPlatedsteelsubstratewithexposedplaincarbonsteelcausedbythreadinterfaceisideallocationforgalvaniccorros