3M性能参数

3M性能参数3VHB™TapesProductDescription:3M™VHB™Tapesprovidetheconvenienceandsimplicityofatapefastenerandareidealforuseinmanyinteriorandexteriorbondingapplications.Inmanysituations,theycanreplacerivets,spotwelds,liquidadhesivesandotherpermanentfasteners.These3M™VHB™Tapesaremadewithacrylicfoamwhichisviscoelasticinnature.Thisgivesthefoamenergyabsorbingandstressrelaxingpropertieswhichprovidesthesetapeswiththeiruniquecharacteristics.Theacrylicchemistryprovidesoutstandingdurabilityperformance.Thesetapesutilizeavarietyofspecificfoam,adhesive,colorandreleaselinertypestoprovideeachproduct/familywithspecificfeatures.Thesefeaturescanincludeadhesiontospecificorabroadrangeofmaterials,conformability,hightensilestrength,highshearandpeeladhesion,resistancetoplasticizermigration,andUL746Crecognition.All3M™VHB™Tapeshaveexcellentdurabilityandexcellentsolventandmoistureresistance.Note:All3M™VHB™Tapesshouldbethoroughlyevaluatedbytheuserunderactualuseconditionswithintendedsubstratestodeterminewhetheraspecifictapeisfitforaparticularpurposeandsuitableforuser’smethodofapplication,especiallyifexpecteduseinvolvesextremeenvironmentalconditions.TechnicalDataNovember,20103M™VHB™TapeProductsTapeNumberColorThicknessin.(mm)4611DkGray0.045(1.1)4618White0.025(0.64)4622White0.045(1.1)4624White0.062(1.55)4646DkGray0.025(0.64)4655DkGray0.062(1.55)4905Clear0.020(0.5)4910Clear0.040(1.0)4919FBlack0.025(0.64)4920White0.015(0.4)4926Gray0.015(0.4)TapeNumberColorThicknessin.(mm)4929Black0.025(0.64)4930(F)White0.025(0.64)4932White0.025(0.64)4936(F)Gray0.025(0.64)4941(F)Gray0.045(1.1)4943FGray0.045(1.1)4945White0.045(1.1)4946White0.045(1.1)4947FBlack0.045(1.1)4949Black0.045(1.1)4950White0.045(1.1)TapeNumberColorThicknessin.(mm)4951White0.045(1.1)4952White0.045(1.1)4955White0.08(2.0)4956(F)Gray0.062(1.55)4957FGray0.062(1.55)4959(F)White0.012(3.0)4979FBlack0.062(1.55)4991Gray0.09(2.3)5925Black0.025(0.64)5952Black0.045(1.1)5962Black0.062(1.55)(F)aftertheproductnumberdesignatethatbothapaperandfilmlinerproductversionareavailable.[e.g.4930(paperliner)and4930F(filmliner)]3M™VHB™TapesAdhesiveTypes:Multi-PurposeAcrylic:Thisadhesivebondstoawiderangeofmaterialsincludingmetals,glass,andhighandmediumsurfaceenergyplasticsandpaints.Thisuniqueadhesivealsohastheabilitytoresistmigrationofplasticizersinvinylsubstrates.ModifiedAcrylic:Thisadhesivebondstomediumlowsurfaceenergypaintsandplastics,includingmanypowdercoatedpaintsinadditiontothesubstrateslistedwiththemulti-purposeacrylicadhesive(exceptplasticizedvinyl).GeneralPurposeAcrylic:Thisadhesivebondstomosthighersurfaceenergysubstratesincludingmetal,glassandhighsurfaceenergyplastics.LowTemperatureAppliableAcrylic:Thisadhesivecanmakebondsdownto32°F(0°C),comparedto50°F(10°C)formostacrylicadhesives.Thisadhesivesystembondstomosthighsurfaceenergysubstratesincludingmetal,glassandhighsurfaceenergyplastics.LowSurfaceEnergy:Thishighperformancesyntheticadhesivebondstomanylowersurfaceenergysubstrates,includingmanyplasticsandpowercoatedpaints,plussmoothgeneralpurposesubstrates.3M™VHB™TapesFoamTypes:Conformable:Thisfoamprovideshighstrengthwiththecapabilityofconformingtotheirregularitiesofrigidsubstrates,evenwhentheremightbeslightmismatch.VeryConformable:Thisfoamprovidesthehighestlevelofconformabilitywhilemaintaininghighinternalstrength.Firm:Thisfoamprovidesthehighestleveloffoamstrengthinthe3M™VHB™Tapesfamily.Clear:Nottechnicallyafoam,thissolidacrylicmaterialprovidesexcellentclarity.-1-3M™VHB™TapeFamilies:4941Thisfamilyutilizesmulti-purposeacrylicadhesiveonbothsidesofconformablefoam.Theadhesiveprovidesexcellentadhesiontoabroadrangeofhighandmediumsurfaceenergysubstratesincludingmetals,glass,andawidevarietyofplastics,aswellasplasticizedvinyl.Theconformablefoamprovidesgoodcontact,evenwithmismatchedsubstrates.Availableingrayandblack.5952Thisfamilymatchesthemodifiedacrylicadhesiveonbothsidesofveryconformablefoam,providingadhesiontothebroadestrangeofsubstrates,includingmostpowdercoatedpaints.Availableindarkgray.4950Thisfamilyhasgeneralpurposeadhesiveonbothsidesoffirmtypefoam.Thisfamilyistypicallyusedonmetal,glassandhighsurfaceenergyplasticsubstrates.Availableinwhiteandblack.4945Thisfamilyhasmulti-purposeadhesiveonbothsidesoffirmfoam.Availableinwhite.4910Thisfamilyofcleartapesisexcellentforapplicationswhereclearorcolorlessisdesired.Thegeneralpurposeadhesiveonbothsidesissuitableforhighsurfaceenergysubstrates.4951Thisfamilyoftapesisbasedaroundthelowtemperatureappliableacrylicadhesivesystem,utilizedonbothfirmandconformablefoamtypes.Theseproductsaresuitableforhighsurfaceenergysubstrates.Availableinwhite(firmfoam)andgray(conformablefoam).4952Thisfamilyutilizesthelowsurfaceenergyadhesiveonafirmfoam.Availableinwhite.4611Thisfamilyhasageneralpurposeadhesiveonbothsidesoffirmfoam.Thisfamilyoftapesistypicallyusedonmetalsubstrates,andhastheaddedfeatureofhightemperatureresistance,makingitoftensuitableforbondingpriortohightemperaturepaintprocessing.Availableindarkgray.4622Thisfamilyhasgeneralpurposeadhesiveonthefaceside(thesidethattypicallywouldbebondedfirst)andmulti-purposeadhesiveonthelinerside(thesideexposedwhenthereleaselinerisremoved)ofaconformablefoam.Availableinwhite.3M™VHB™TapeProductFamilyGuideNOTE:Foreasyproductcomparison,datainthisproductinformationpagewillbeorganizedbyproductfamily.TypicalPhysicalPropertiesNote:Thefollowingtechnicalinformationanddatashouldbeconsideredrepresentativeortypicalonlyandshouldnotbeusedforspecificationpurposes.TypicalPerformanceCharacteristicsNote:Thefollowingtechnicalinformationanddatashouldbeconsideredrepresentativeortypicalonlyandshouldnotbeusedforspecificationpurposes.90°PeelAdhesion-BasedonASTMD3330-Tostainlesssteel,roomtemperature,jawspeed12in/min(305mm/min).Averageforcetoremoveismeasured.NormalTensile(T-BlockTensile)-ASTMD-897-Toaluminum,roomtemperature,1in2(6.45cm2),jawspeed2in/min(50mm/min.)Peakforcetoseparateismeasured.DynamicOverlapShear-ASTMD-1002-Tostainlesssteel,roomtemperature,1in2(6.45cm2),jawspeed0.5in/min(12.7mm/min.)Peakforcetoseparateismeasured.TypicalPerformanceCharacteristicsNote:Thefollowingtechnicalinformationanddatashouldbeconsideredrepresentativeortypicalonlyandshouldnotbeusedforspecificationpurposes.StaticShear-ASTMD3654-Tostainlesssteel,testedatvarioustemperaturesandgramloadings.0.5in2(3.22cm2).Willholdlistedweightfor10,000minutes(approximately7days).Conversion:1500g/0.5in2equals6.6lb/in2;500g/0.5in2=2.2lb/in2.ShortTermTemperatureTolerance-Nochangeinroomtemperaturedynamicshearpropertiesfollowing4hoursconditioningatindicatedtemperaturewith100g/staticload.(Representsminutes,hoursinaprocesstypetemperatureexposure).LongTermTemperatureTolerance-Maximumtemperaturewheretapesupportsatleast250gloadper0.5in2instaticshearfor10,000minutes.(Representscontinuousexposurefordaysorweeks.SlittingToleranceStandardslittingtolerance±1/32inch(±0.031inch,±0.8mm).Precisionslittingwithslittingtoleranceof±1/64inch(±0.016in.,±0.44mm)isavailableonselectproductswithminimumorderoffullwebincrements.CoreSizeAllproductsareavailableona3inchIDCore(76.2mm).ConvertedPartsInadditiontostandardandcustomrollsizesavailablefrom3Mthroughthedistributionnetwork,3M™VHB™Tapesarealsoavailableinlimitlessshapesandsizesthroughthe3MConverternetwork.Foradditionalinformation,contact3MConverterMarketsat1-800-223-7427oronthewebatwww.3M.com/converter.ShelfLifeAll3M™VHB™Tapeshaveashelflifeof24monthsfromdateofmanufacturewhenstoredat40°Fto100°F(4°Cto38°C)and0-95%relativehumidity.Theoptimumstorageconditionsare72°F(22°C)and50%relativehumidity.Performanceoftapesisnotprojectedtochangeevenaftershelflifeexpires;however,3Mdoessuggestthat3M™VHB™Tapesareusedpriortotheshelflifedatewheneverpossible.Themanufacturingdateisavailableonall3M™VHB™Tapecoresasthelotnumber.Thelotnumber,typicallya4digitcode,isaJuliandate(YDDD).Thefirstdigitreferstotheyearofmanufacture,thelast3digitsrefertothedaysafterJanuary1.Example:Alotnumberof4266wouldtranslatetoadateofmanufactureofSept.22(266thdayofyear)in2009.Onmostproductsthisisfoundasthe4digitsafterthe“9”followingtheproductnumber.Fortapesprintedcontinuouslyaroundthecore(e.g.3M™VHB™Tape5952family)thelotnumbertypicallywillbethestringof4digitsprecedingtheproductnumber.-6--7-AdditionalTypicalPerformanceCharacteristicsOutgassing:3M™VHB™Tapes%TML%VCM%WVR49300.770.010.2149322.410.660.2349451.240.010.19TML-TotalMassLossVCM-VolatileCondensibleMaterialsWVR-WaterVaporRegainedNASAReferencePublication,“OutgassingDataforSelectingSpacecraftMaterials”,(11/18/2004)AvailableonlineatResistivity(ASTMD257)3M™VHB™VolumeResistivitySurfaceResistanceTapes(inohm-cm)(inohms/square)49412.1x10142.7x101459522.5x1014>101649501.5x1015>101649201.7x1015>101649103.1x1015>101646111.4x1015>10163M™VHB™TapesUL746CListings-FileMH17478CategoryQOQW2Component-PolymericAdhesiveSystems,ElectricalEquipmentNote:Thefollowingtechnicalinformationanddatashouldbeconsideredrepresentativeortypicalonlyandshouldnotbeusedforspecificationpurposes.ThermalConductivity-K-value3M™VHB™BTUin/Tapeshrft2°F(w/mK)49410.53(0.08)59520.37(0.05)4950/49450.63(0.09)49101.09(0.16)46110.77(0.11)R-Value=thicknessK-value(WhenunitsofK-valueareBTU-in/hrft2°Fandthicknessisgivenininches.)DielectricBreakdownStrength(ASTMD149)3M™VHB™Tapes(involts/mil)11330DielectricConstant(ASTMD150)3M™VHB™DielectricDissipationTapesConstantFactor4941at1kHz2.290.0245at1MHz1.990.03745952at1kHz2.140.0065at1MHz1.950.05064950at1kHz2.280.0227at1MHz1.990.03704910at1kHz3.210.0214at1MHz2.680.05954611at1kHz2.800.0130at1MHz2.430.0564Acurrentlistcanbefoundatwww.ul.com(selectcertifications,searchfileMH17478)Typical3M™VHB™TapePropertiesforModelingThermalCoefficientofExpansion1x10-4in/in/°F1.8x10-4mm/mm/°CShearModulus(@25°C,1Hz)4950Family:6x105Pa4941Family:3x105Pa(ShearModulusisbothtemperatureandfrequencydependent).YoungsModulus:ForVHBtapestheYoungsModuluswillbeabout3timestheShearModulus.Poisson’sRatio0.49%AdhesiveRetentionSolventandFuelResistance01000100WaterSaltWaterHydraulicFluid10W30MotorOilGlycolAntifreezeKeroseneIsopropylAlcoholJetFuelGasolineMEKTestMethod•Tapebetweenstainlesssteelandaluminumfoil.•72hoursdwellatroomtemperature.•Solventimmersionfor72hours.•Testwithin45minutesafterremovingfromsolvent.•90°peelangle.•12in./min.rateofpeel.•Peeladhesioncomparedtocontrol.Note:Continuoussubmersioninchemicalsolutionsisnotrecommended.Theaboveinformationispresentedtoshowthatoccasionalchemicalcontactshouldnotbedetrimentaltotapeperformanceinmostapplicationsinordinaryuse.-8-DesignandTapeSelectionConsiderationsChoosetherighttapeforthesubstrate:Adhesivesmustflowontothesubstratesurfacesinordertoachieveintimatecontactareaandallowthemolecularforceofattractiontodevelop.Thedegreeofflowoftheadhesiveonthesubstrateislargelydeterminedbythesurfaceenergyofthesubstrate.Usetherighttapethickness:Thenecessarythicknessoftapedependsontherigidityofsubstratesandtheirflatnessirregularity.Whilethe3M™VHB™Tapeswillconformtoacertainamountofirregularity,theywillnotflowtofillgapsbetweenthematerials.Forbondingrigidmaterialswithnormalflatness,consideruseoftapeswiththicknessof45mils(1.1mm)orgreater.Asthesubstrateflexibilityincreasesthinnertapescanbeconsidered.Usetherightamountoftape:Because3M™VHB™Tapesareviscoelasticbynaturetheirstrengthandstiffnessisafunctionoftherateatwhichtheyarestressed.Theybehavestrongerwithrelativelyfasterrateofstressload(dynamicstresses)andwilltendtoshowcreepbehaviorwithstressloadactingoveralongperiodoftime(staticstresses).Asageneralrule,forstaticloads,approximatelyfoursquareinchesoftapeshouldbeusedforeachpoundofweighttobesupportedinordertopreventexcessivecreep.Fordynamicloads,thedynamicperformancecharacteristicsprovidedonpage4shouldbeuseful,factoringintheappropriatesafetyfactors.Allowforthermalexpansion/contraction:3M™VHB™Tapescanperformwellinapplicationswheretwobondedsurfacesmayexpandandcontractdifferentially.Assuminggoodadhesiontothesubstrates,thetapescantypicallytoleratedifferentialmovementintheshearplaneupto3timestheirthickness.BondFlexibility:Whileanadvantageformanyapplicationswhereallowingdifferentialmovementisabenefit,thetapebondsaretypicallymoreflexiblethanalternatebondingmethods.Suitabledesignmodificationsorperiodicuseofrigidfastenersoradhesivesmaybeneededifadditionalstiffnessisrequired.SevereColdTemperature:Applicationswhichrequireperformanceatseverecoldtemperaturesmustbethoroughlyevaluatedbytheuseriftheintendedusewillsubjectthetapeproducttohighimpactstresses.Atechnicalbulletin“3M™VHB™TapeColdTemperaturePerformance”isavailableforadditionalinformation.(70-0707-3991-0)AdhesiveHighsurfaceenergy—SubstrateLowsurfaceenergy—SubstrateThisillustrationdemonstratestheeffectofsurfaceenergyonadhesiveinterfacialcontact.Highsurfaceenergymaterialsdrawtheadhesivecloserforhighbondstrength.RelationshipofAdhesionandSurfaceEnergyfor3M™VHB™TapeAdhesiveFamilies400-1100AluminumStainlessSteelCopperZincTinLeadAnodizedAluminumGlass42-50Kapton™PhenolicNylon™AlkydEnamelPolyesterEpoxyPaintPolyurethane36-37PVAPolystyreneAcetalPowderPaint18-33EVAPolyethylenePolypropyleneTedlar™SiliconeTeflon™NOTES:Thereareawidevarietyofformulations,surfacesfinishesandsurfacetreatmentsavailableonsubstratematerialswhichcanaffectadhesion.Thischartisintendedtoprovideonlyaroughestimateoftheadhesionlevelswhichcanbeexpectedonsomecommonmaterialsrelativetoareferencesurfacesuchasaluminum.Lightsurfaceabrasionwillsignificantlyincreaseadhesionlevelsonmanymaterials,exceptwhenusingtapes4952/4932.38-39ABSPolycarbonate(Lexan™)PVCNoryl™AcrylicPolane™PaintPowderPaintEstimateof%ofMaximum3M™VHB™TapeAdhesionHIGHLOWMEDIUMApplicationTechniquesClean:Mostsubstratesarebestpreparedbycleaningwitha50:50mixtureofisopropylalcohol(IPA*)andwaterpriortoapplying3M™VHB™Tapes.Exceptionstothegeneralprocedurethatmayrequireadditionalsurfacepreparationinclude:•HeavyOils:Adegreaserorsolvent-basedcleanermayberequiredtoremoveheavyoilorgreasefromasurfaceandshouldbefollowedbycleaningwithIPA/water.•Abrasion:Abradingasurface,followedbycleaningwithIPA/water,canremoveheavydirtoroxidationandcanincreasesurfaceareatoimproveadhesion.•AdhesionPromoters:Primingasurfacecansignificantlyimproveinitialandultimateadhesiontomanymaterialssuchasplasticsandpaints.•Poroussurfaces:Mostporousandfiberedmaterialssuchaswood,particleboard,concrete,etc.needtobesealedtoprovideaunifiedsurface.•UniqueMaterials:Specialsurfacepreparationmaybeneededforglassandglass-likematerials,copperandcoppercontainingmetals,andplasticsorrubberthatcontaincomponentsthatmigrate(e.g.plasticizers).Referto3MTechnicalBulletin“SurfacePreparationfor3M™VHB™TapeApplications”foradditionaldetailsandsuggestions.(70-0704-8701-5)*Note:Thesecleanersolutionscontaingreaterthan250g/lofvolatileorganiccompounds(VOC).PleaseconsultyourlocalAirQualityRegulationstobesurethecleaneriscompliant.Whenusingsolvents,besuretofollowthemanufacturer’sprecautionsanddirectionsforusewhenhandlingsuchmaterials.Pressure:Bondstrengthisdependentupontheamountofadhesive-to-surfacecontactdeveloped.Firmapplicationpressuredevelopsbetteradhesivecontactandhelpsimprovebondstrength.Typically,goodsurfacecontactcanbeattainedbyapplyingenoughpressuretoinsurethatthetapeexperiencesapproximately15psi(100kPa)pressure.Eitherrollerorplatenpressurecanbeused.Notethatrigidsurfacesmayrequire2or3timesthatmuchpressuretomakethetapeexperience15psi.Temperature:Idealapplicationtemperaturerangeis70°Fto100°F(21°Cto38°C).Pressuresensitiveadhesivesuseviscousflowtoachievesubstratecontactarea.Minimumsuggestedapplicationtemperatures:•50°F(10°C):3M™VHB™Tapes4950,5952,4910,4952,4611,4622families.•60°F(15°C):3M™VHB™Tapes4941,4945families.•32°F(0°C):3M™VHB™Tape4951families.Note:Initialtapeapplicationtosurfacesattemperaturesbelowthesesuggestedminimumsisnotrecommendedbecausetheadhesivebecomestoofirmtoadherereadily.However,onceproperlyapplied,lowtemperatureholdingisgenerallysatisfactory.Toobtaingoodperformancewithall3M™VHB™Tapes,itisimportanttoensurethatthesurfacesaredryandfreeofcondensedmoisture.Time:Afterapplication,thebondstrengthwillincreaseastheadhesiveflowsontothesurface.Atroomtemperatureapproximately50%ofultimatebondstrengthwillbeachievedafter20minutes,90%after24hoursand100%after72hours.Thisflowisfasterathighertemperaturesandsloweratlowertemperatures.Ultimatebondstrengthcanbeachievedmorequickly(andinsomecasesbondstrengthcanbeincreased)byexposureofthebondtoelevatedtemperatures(e.g.150°F[66°C]for1hour).Thiscanprovidebetteradhesivewetoutontothesubstrates.Abrasionofthesurfacesortheuseofprimers/adhesionpromoterscanalsohavetheeffectofincreasingbondstrengthandachievingultimatebondstrengthmorequickly.20MIN1HOUR24HOURS72HOURSBondTypicalBuildvs.Time-9--10-3Mwarrantsfor24monthsfromthedateofmanufacturethat3M™VHB™Tapewillbefreeofdefectsinmaterialandmanufacture.3MMAKESNOOTHERWARRANTIES,EXPRESSORIMPLIED,INCLUDINGBUTNOTLIMITEDTO,ANYIMPLIEDWARRANTYOFMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSE.Thislimitedwarrantydoesnotcoverdamageresultingfromtheuseorinabilitytouse3M™VHB™Tapeduetomisuse,workmanshipinapplication,orapplicationorstoragenotinaccordancewith3Mrecommendedprocedures.LimitedWarrantyIfthe3M™VHB™Tapeisprovedtobedefectivewithinthewarrantyperiodstatedabove.THEEXCLUSIVEREMEDY,AT3M’SOPTION,SHALLBETOREFUNDTHEPURCHASEPRICEOFORTOREPAIRORREPLACETHEDEFECTIVE3M™VHB™TAPE.3Mshallnototherwisebeliableforlossordamages,whetherdirect,indirect,special,incidental,orconsequential,regardlessofthelegaltheoryasserted,includingnegligence,warranty,orstrictliability.LimitationofRemediesandLiabilityAllstatements,technicalinformationandrecommendationscontainedinthisdocumentarebasedupontestsorexperiencethat3Mbelievesarereliable.However,manyfactorsbeyond3M’scontrolcanaffecttheuseandperformanceofa3Mproductinaparticularapplication,includingtheconditionsunderwhichtheproductisusedandthetimeandenvironmentalconditionsinwhichtheproductisexpectedtoperform.Sincethesefactorsareuniquelywithintheuser’sknowledgeandcontrol,itisessentialthattheuserevaluatethe3Mproducttodeterminewhetheritisfitforaparticularpurposeandsuitablefortheuser’smethodofapplication.ProductUseThisIndustrialAdhesivesandTapesDivisionproductwasmanufacturedundera3MqualitysystemregisteredtoISO9001:2000standards.Kapton,Tedlar,NylonandTeflonareregisteredtrademarksofE.I.DupontDeNemours&Co.Inc.LexanandNorylareregisteredtrademarksofGeneralElectricCo.PolaneisaregisteredtrademarkofSherwinWilliamsCo.PrintedinU.S.A.©3M201070-0709-3863-7(09/05)RecycledPaper40%pre-consumer10%post-consumer3IndustrialBusinessIndustrialAdhesivesandTapesDivision3MCenter,Building21-1W-10,900BushAvenueSt.Paul,MN55144-1000800-362-3550•877-369-2923(fax)www.3M.com/vhbSpecialCases:RoughSurfaceswith3M™VHB™Tapes4932/4952–3M™VHB™Tapes4932/4952weredesignedtoadheretomanylowsurfaceenergysubstrates.Roughsurfacescreatedbylightabrasionortexturedmoldsaretypicallydetrimentaltobondstrengthwiththistapefamily.PlasticizedVinyl–Plasticizerscompoundedinsoftvinylcanmigrateintoadhesivesandsignificantlychangetheirperformancecharacteristics.3M™VHB™Tapes4941and4945familieshaveverygoodplasticizerresistanceandadhesiontomanyvinylformulations.Becauseofthewidevariationinvinylformulations,however,evaluationbytheusermustbeconductedwiththespecificvinylusedtoensurethatperformancewillbesatisfactoryovertime.Problemsrelatedtoplasticizermigrationcanoftenbepredictedbyacceleratedagingofassembledpartsat150°F(66°C)foroneweek).