1、BRITISH STANDARD BS EN 12964:2001 Adhesives for leather and footwear materials Lasting adhesives Testing heat resistance of bonds at increasing temperature The European Standard EN 12964:2001 has the status of a British Standard ICS 83.180 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COP
2、YRIGHT LAWBS EN 12964:2001 This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 BSI 06-2001 ISBN 0 580 37418 1 National foreword This Bri
3、tish Standard is the official English language version of EN 12964:2001. The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.
4、 Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Elec
5、tronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to unders
6、tand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover
7、, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN
8、12964 April2001 ICS83.180 Englishversion AdhesivesforleatherandfootwearmaterialsLasting adhesivesTestingheatresistanceofbondsatincreasing temperature Adhsifspourcuiretmatriauxpourarticleschaussants AdhsifshautetnacitContrledelarsistancela chaleurdesjointsunetempratureleve KlebstoffefrLederundSchuhwe
9、rkstoffeZwickklebstoffe PrfungderWrmebestndigkeitvonKlebungenbei steigenderTemperatur ThisEuropeanStandardwasapprovedbyCENon1March2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalter
10、ation.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberint
11、oitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.
12、 EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN12964:2001EPage2 EN12964:2001 Contents Page Foreword3 1 S
13、cope 4 2 Normativereferences 4 3 Termsanddefinitions . 4 4 Principle4 5 Safety 4 6 Apparatus .4 7 Adhesive.6 8 Testmaterial. 6 9 Testpieces . 6 10 Proceduresandevaluation .10 11 Testreport 10Page3 EN12964:2001 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC193,“Adhesives“,thes
14、ecretariatof whichisheldbyAENOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2001,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2001. AccordingtotheCEN/CENELECInternalRegulations,thenation
15、alstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom.Page4 EN12964:2001 1Scope ThisEuropea
16、nstandardspecifiesamethodfordeterminingtheheatresistanceofbondsproducedbylasting adhesives. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedherea
17、fter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN923 AdhesivesTermsanddefinitions EN1066 Adhesives
18、Sampling EN1067 AdhesivesExaminationandpreparationofsamplesfortesting ISO554 Standardatmospheresforconditioningand/ortesting Specifications 3 Termsanddefinitions ForthepurposesofthisstandardthetermsanddefinitionsinaccordancewithEN923,andthefollowingtermand definitionapply. 3.1 lastingadhesive adhesi
19、veusedforbondingashoeuppertoashoeinsoleduringthelastingprocess. 4Principle Stripsofspecifiedlengthandwidtharecutfromacottoncanvastestmaterial.Thelastingadhesivetobetestedis coatedontothesestripsandtwostripsarebondedtoproducetestpiecesofaspecifiedform. Theheatresistanceofthebondsisdeterminedbyheating
20、thetestpiecestocohesion(cohesive)failureinawarm aircabinetunderaspecifiedconstantloadandatatemperatureincreasingatarateof2 C/min. 5Safety Personsusingthisstandardshallbefamiliarwithnormallaboratorypractice. Thisstandarddoesnotpurporttoaddressallsafetyproblems,ifany,associatedwithitsuse. Itistherespo
21、nsibilityoftheusertoestablishsafetyandhealthpracticesandtoensurecompliancewithany Europeanandnationalregulatoryconditions. 6Apparatus Theitemsrequiredwilldependonthetypesofmaterialsused:Page5 EN12964:2001 6.1 Cuttingknife Sharpknife,forcuttingtestpiecesinaccordancewith9.3.2.Theanglebetweentheinneran
22、doutercuttingsurface shallbeapproximately20 ; 6.2Hand brush Forcleaningthesurfaceofthetestmaterial; 6.3 Adhesiveapplicator Toensureauniformandevencoatingoftheadhesiveundertestusingpreferablythetypeofapplicator recommendedbythemanufactureroftheadhesive. Unlessotherwisespecified,forlastingadhesivessup
23、pliedinliquidformuseabrush,arolleroracoatingmachine, forsolidlastingadhesivesuseanapplicatorequippedwithameltingchamberandanapplicatornozzlewiththe followingrequirements: a)Themeltingchambershallheattheadhesivebyanelectricdevicetoitsapplicationtemperature(usually between100 Cand300 C).Thetemperature
24、ofthenozzleshallbekeptwithin5 Cofthespecified temperature. b)Theapplicatorshallallowtheevendistributionoftheadhesiveoverthetestpiecesurface.Itshallincludeanair drivenormechanicalsystemwhichproducesacontrolleddoseofthemeltedadhesive.Theuseofanozzlewith severalorificesisrecommendedasitfacilitatesthedi
25、stributionofthemeltedadhesiveoverthewholesurfaceof thetestmaterial. c)Duringapplication,thetestmaterialshallrestonamobilecarriage/travellerwhichallowstheapplicationofthe adhesivealongthelengthofthetestpieceatacontrolledspeed. 6.4 Heatactivator Forheatingadhesivecoatstotherequiredtemperature. 6.5 Equ
26、ipmentformeasurementoftemperature Thermocouple,thermoindicatorpapersormeltingpowdersformeasuringthetemperatureofactivatedadhesive coatsoranoncontacttemperaturemeasurementdevice. 6.6Pressing device Providinganevenpressureofupto0,6MPaoverthewholeofthesurfacetobebonded; 6.7 Warmaircabinet Withforcedven
27、tilationcapableofmaintainingtemperaturesbetween25 Cand300 Cwithtolerancesof2 C andsuitablefortestingtestpiecesinaccordancewithclause10.Thetestcabinetshallbefittedwithadevicefor increasingtemperatureataspecifiedconstantrate,athermometerorathermocoupleformeasuringtemperaturein thewarmaircabinet,awindo
28、wanddevicesforclamping5testpieces.Thesedevicesshallconsistofupper clampsfixedonametalbarinthecabinetandlowerclampswhichshallhavemeansforattachingweightswhich passthroughcylindricalholesinthebaseofthecabinet.Alllowerclampsshallbeofthesamemassandcapable ofbeingloadedwithweightssothattotalloadsappliedb
29、ytheindividualclampsare1,0kg,2,0kg,3,0kg,4,0kg and5,0kg;Page6 EN12964:2001 6.8Weights Withatoleranceof1%forapplyingloadsof1,0kg,2,0kg,3,0kg,4,0kgand5,0kg,includingtheweightofa clamptothetestpieces. 7Adhesive Identifytheadhesiveusedcompletelyinthetestreport,inparticularnotenameand/ordesignation,manuf
30、acturer, dateofmanufacture/supplyand/orlotnumber,typeofadhesive(solventborneorhotmeltadhesive),mainpolymer andcolour. 8 Testmaterial Unlessotherwisespecified,useanunsizedcompactcottoncanvasfortesting.Completelyidentifythetestmaterial used.Recordnameand/ordesignation,manufacturer,dateofmanufacture/su
31、pply,type,detailsofthreadsand weightperunitareaandothercharacteristicsofthetestmaterialinthetestreport. 9 Testpieces 9.1 Formoftestpieces Twostripsofmaterialupto(1002)mmlongand(300,5)mmwidemarkedwithlinesacrosseachstripat 30mm,40mmand70mminpencilorsolventresistantink,bondedtocovereachotheroveralengt
32、hofat least70mmfromthe30mmmarkedline(Figure1). Figure1Formanddimensions(inmillimetres)oftestpieces. 9.2 Numberoftestpieces Prepareforeachtestatleast5testpieces,forcarryingoutthetestinduplicateanother5testpiecesand,ifpre liminarycreeptestsarenecessaryforassessingthetesttemperature,additionally5testpi
33、eces.Page7 EN12964:2001 9.3 Preparationoftestpieces 9.3.1 Conditioningofthetestmaterial Conditionthetestmaterialtoanequilibriumstateinthestandardatmosphere23/50inaccordancewithISO554. 9.3.2 Cuttingofmaterialstrips Whencuttingthematerialsfortestpieces,thesurfacethatistobebondedshallbeuppermost.Theinn
34、ersurface oftheknifeshallbeatrightanglestotheplaneofthematerialtobecut.Thedepthofthecutshallbegreaterthan thethicknessofthematerialbeingcut. NOTEItisrecommendedthatathicksheetofpaperbelaidbetweenthematerialandthecuttingblock. 9.3.3 Preparationofbondingsurfaces Preparethematerialsurfacesinaccordancew
35、iththeinstructionsoftheadhesivesupplier.Ifthereisnoinformation availablecleanthesurfacestobebondedbyahandbrush(6.2)sothattheyarefreefromcontamination. 9.3.4 Preparationoftheadhesive TakeasignificantsampleoftheadhesivetobetestedinaccordancewithEN1066andexamineandprepareitin accordancewithEN1067.Store
36、thesampleinaclosedcontainerat(232) Cuntilithascompletelyreachedthis temperature. 9.3.5 Applicationofliquidadhesivesandbondingoftestpieces Unlessotherwisespecifiedandrecordedinthetestreport: Weigheachpreparedstrip Applytheadhesive(305)minafterthepreparationofthesurfacetobebonded(9.3.3)atacontrolled t
37、emperatureof(235) Candrelativehumiditylessthan70%.Dependingonthenatureofthesurfaceto bebondedapplytwoormorecoatsofadhesiveinthelengthdirectionofthestrips,usinganappropriate device(6.3). Coattheadhesiveuptothe30mmmarkonthestripssothata30mmlengthisfreefromadhesive.Allow adryingintervalof(305)minbefore
38、applyingthenextcoat,unlessotherwisespecifiedbytheadhesive manufacturer.Reweigheachstripandcalculatethetotalquantityofdryadhesiveapplied. Recordthequantityofadhesiveapplied,thenumberofcoats,andthetimebetweenadhesiveapplications inthetestreport. Betweentheapplicationoftheadhesiveandtheassemblingofthet
39、wostripsallowthefinaladhesivecoat todryfor(305)minatacontrolledtemperatureof(235) Candarelativehumidityoflessthan70%. Activatetheadhesivecoatsbyusingaheatactivator(6.4)ensuringthattheoptimumactivationtempera ture,usually(855) C,isreachedwithin15s. NOTEIftheoptimumactivationtemperaturewhichensuresafu
40、llcoalescenceoftheadhesivecoatwithinthepressing timeisunknown,preliminarytestsshouldbemade. Determinethesurfacetemperatureoftheadhesiveusinganyofthedevicesspecifiedin6.5. Recordtheactivationtemperaturemeasured,thedeviceandhowitwasusedinthetestreport. Assembletwoactivatedcoatsimmediatelyaftertheirrem
41、ovalfromtheheatactivatorcarryingoutall operationsfromtheendofactivationtoattainmentofmaximumpressurewithin10s.Page8 EN12964:2001 Holdthebondedstripsunderapressureofatleast(0,60,02)MPafor15s.Ensurethatthepressure isevenlydistributedoverthewholesurface. 9.3.6 Applicationofsolidadhesivesandbondingoftes
42、tpieces Heattheapplicatortoatemperaturewhichwillallowadhesiveremainedfromprevioususetobeflushedout.To dothis,addsomeoftheadhesivetobetested(previouslycuttosizeifnecessary),allowtheadhesivetomeltin themeltingchamberandapplyittopaperorotherscrapmaterial,untilitappearstobethesamecolourand freefrompollu
43、tants.Repeatthisprocesswithfurtheradhesiveuntilthewholemeltingchamberisclean. Rechargethemeltingchamberandadjustittotherequiredapplicationtemperature.Applyasuitableamountof adhesive,injustonecoatwiththenozzle,totheareaofthetestpiecetobebonded.Immediatelyplacethe otherstripofmaterialontopandapplysufficientpressuretoachieveahomogeneouslayerofadhesive, thicknessapproximately0,4mm.
