ISO 04624-2023.docx

INTERNATIONA1.STANDARDISO4624editionFourth2023-06Paintsandvarnishes-Pu1.1.-offtestforadhesionPeinturesetvernis-EssaidetraciionISoRa西HO2跳到©ISO2023COPYRIGHTPROTECTEDDOCUMENT©ISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InyM1.tta0Dmk<nroni(ncm11ni10tf1.*Mqn1.C6pW11opypMRationmaytheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1.oworISO'smemberbodyinthecountr)oftherequester.f),WV>fifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.227490111觥ftte:丽丽BQrgPub1.ishedinSwitzer1.and©ISO2023-A1.1.rightsreservedPaintsandvarnishesPu1.1.-offtestforadhesion1 Scopesing1.ecoatingoramu1.ti-coatsystemofpainttvarnishorre1.atedproduct.methodA:usingtwodo1.1.ies,suitab1.efortestingbothrigidanddeformab1.esubstrates;methodC:usingdo1.1.ies,oneasapaintedsubstrate.differencesinadhesion.construction.Ford1.stortionspedaipurposes,duringcoatingtensi1.eapp1.iedcommontotousefacesandwich2 Normativereferencesconstitutesrequirements1.atesteditiondocument.referencedreferences,(inc1.uc1.ingamendments)app1.ies.app1.ies.ISO1514,PaintsandvarnishesStandardpane1.sfortestingandgHngPointsandvarnishesandtheirrawmateria1.sTemperaturesandhumiditiesforconditioningISOTermsanddefinitionsrawmateria1.sforpaintsandvarnishesSamp1.ingForthepurposesofthisdocument,thetermsanddefinitionsgiveninISO4618app1.y.ISOOn1.inebrowsingp1.atform:avai1.ab1.eat4ttp/WWW¼M>FgGbP随划Um!HTW!E，IEThisdocumentspecifiesthreemethodsfordeterminingtheadhesionbycarryingoutapu1.1.-offtestonaThesemethodsinc1.ude:methodB:testingfromonesideon1.y,usingasing1.edo1.1.y,suitab1.eforrigidsubstrateson1.y;Thesetestmethodshavebeenfoundusefu1.incomparingtheadhesionbehaviourofdifferentcoatings.Itismostusefu1.inprovidingre1.ativeratingsforaseriesofcoatedpane1.sexhibitingsignificantThetestcanbeapp1.iedusingawiderangeofsubstrates.Differentproceduresaregivenaccordingtowhetherthesubstrateisdeformab1.e,e.g.thinmeta1.rp1.asticsandwood,orrigid,e.g.thickconcreteandmeta1.p1.ates.Toavoidexamp1.e,forofthesubstratethethecanbetestritIsdirect1.yt1.eoftestdo1.1.y.Thefo1.1.owingdocumentsarereferredtointhetextinsuchawaythatsomeora1.1.oftheircontentundatedreferences,theofthisoftheFordateddocumenton1.ytheanyeditioncitedForISO1513,PaintsandvarnishesExaminationandpreparationoftestsamp1.esISO2808,PaintsandvarnishesDeterminationoffi1.mthicknessISO3270,ISO4618,PaintsandvarnishesVocabu1.ary315528,Paints,varnishesISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses：IECE1.ectropedia:avai1.ab1.eathttps:/www.e1.ectropedia.org/©ISO2023-A1.1.rightsreservedIfthetestpieceistoo1.arge,useanareacutfromthecoatedsubstrate(discofminimumdiameter30mmtoIhesquareofOf【woside30mm).Take()equa1.thetestP1.acethetestpiecebetweentheadhesive-coatedfacesofthedo1.1.iessuchthatthedo1.1.iesarecoaxia1.1.ydevice(in)thecentreoftestpiece,asaperiodequa1.theA1.ignthetestoftheinthespecia1.testsunderhigh1.yhumidconditions,thecuringtimeoftheadhesivesha1.1.beasshortaspossib1.e,theuseoftwo-packquick-dryingepoxy-adhesiveispreferab1.einthesesituations.Attheendofthisperiod,carefu1.1.ythecuttingdevice(5.4)CUt(see).Theadhesionattheadhesive/coatinginterfacemaybeimprovedby1.ight1.yabradingthesurfaceoftheInthemethodfordeformab1.esubstrates,ifapooradhesivebondisexpectedbetweentheuncoatedfaceofthesubstrateandthedo1.1.y,coatbothhe管ofthesubstratewiththeproductundertest.Figure4TestononeorforsidesApp1.ytheadhesiveeven1.ytotheuncoated,fresh1.y-c1.eanedsurfaceofado1.1.y(5.2).P1.acetheadhesive-coatedfacetheAtinendofwiththecoating,fortheperiodto(5.4)tocuttimeofcircumferenceofthedo1.1.ythroughtothesubstrate,un1.essOtherWiSespecifiedoragreed.9.5Measurement9.5.1 Breakingstrengthacrossadhesiontesttester(Withouttakingbendingmoment,do1.1.iesatensi1.estress,Increasingisatapp1.ieduniform1.yassemb1.ythepreparedstressrequiredtobreakthetestassemb1.y.Repeatthepu1.1.-offtestforeachtest9.5.2Natureofthefracturefractureasfo1.1.ows：A/Bisadhesivefai1.urebetweensubstrateandfirstcoat;B/Cisadhesivefai1.urebetweenfirstandsecondcoats;34”n/mYiscohesivefai1.ureofadhesive;Estimatetheareaoffractureasapercentagetothenearest10%foreachtypeoffracture.usingCa1.cu1.atio11nwreexpressionofresu1.ts10.1BreakingstrengthE(1)Immediate1.yafterth-perioda1.1.owedforthecuringoftheadhesive,p1.acethetestassemb1.yinthepu1.1.-offthearea,5.1),anycaretoa1.igntheApp1.ysothatthetensi1.eforceratenotgreaterthan1MPas,perpendicu1.artothep1.aneofthecoatedsubstratesuchthatfai1.ureofthetestassemb1.yoccurswithin90SOfinitia1.app1.icationofthestress.9Recordtensi1.e(see9.1).Visua1.1.yinspectthefracturesurfacestoestab1.ishthenatureofthefracture,andassessthetypeofAiscohesivefai1.ureofsubstrate;Biscohesivefai1.ureoffirstcoat;iscohesivefai1.ureofthenthcoatofamu1.1.icoatsystem;isadhesivefai1.urebetweenthentcoatandthe加小coat