1、BRITISH STANDARD BS EN 14020-2:2002 Reinforcements Specification for textile glass rovings Part 2: Methods of test and general requirements The European Standard EN 14020-2:2002 has the status of a British Standard ICS 59.100.10 BS EN 14020-2:2002 This British Standard, having been prepared under th
2、e direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 18 December 2002 BSI 18 December 2002 ISBN 0 580 40996 1 National foreword This British Standard is the official English language versi
3、on of EN 14020-2:2002. Together with BS EN 14020-1 and BS EN 14020-3 this publication supersedes BS 3691:1990 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, which has the responsibility to
4、: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International
5、Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Sta
6、ndard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Europ
7、ean developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 8, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendm
8、ents issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN140202 December2002 ICS59.100.10 Englishversion ReinforcementsSpecificationfortextileglassrovingsPart2: Methodsoftestandgeneralrequirements RenfortsSpcificationdesstratifils(rovings)deverre textilePa
9、rtie2:Mthodesdessaietexigencesgnrales VerstrkungsfasernSpezifikationfrTextilglasrovings Teil2:PrfverfahrenundallgemeineAnforderungen ThisEuropeanStandardwasapprovedbyCENon7November2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an S
10、tandardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadeby
11、tra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,N
12、orway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN1
13、40202:2002EEN140202:2002(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Visualappearance . 5 5 Applicationperformance. 5 6 Listoftestmethods .6 7 Sampling.7 8 Generalrequirements 7 Bibliography 8EN140202:2002(E) 3 Foreword Thisdocument(EN140202:2002)hasbee
14、npreparedbyTechnicalCommitteeCEN /TC 249“Plastics“,the secretariatofwhichisheldbyIBN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJune2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby June2003. Thisdoc
15、umentisonepartofEN14020whichisstructuredasfollows: Part 1: Designation Part 2: Testmethodsandgeneralrequirements Part 3: Specificrequirements AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,
16、CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom.EN140202:2002(E) 4 1Scope ThispartofthisEuropeanStandarddefinestestmethodstobeusedtodeterminedesignatedandspecified propertiesgiveninPa
17、rt1and3,respectively.Itdefinesgeneralrequirementsapplicabletothespecificationofall typesofglassfibrerovingsfallingwithinthescopeofthisspecificationasdefinedinPart1ofthestandard. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These norm
18、ativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationrefe
19、rredtoapplies(includingamendments). ENISO472:2001, PlasticsVocabulary(ISO472:1999). ENISO1889, ReinforcementyarnsDeterminationoflineardensity(ISO1889:1997) . ENISO2078, TextileglassYarnsDesignation(ISO2078:1993) . ENISO3344, ReinforcementproductsDeterminationofmoisturecontent(ISO3344:1997) . ENISO91
20、63, TextileglassRovingsManufactureoftestspecimensanddeterminationoftensilestrengthof impregnatedrovings(ISO9163:1996) . ENISO14130,FibrereinforcedplasticcompositesDeterminationofapparentinterlaminarshearstrengthby shortbeammethod(ISO14130:1997) . ISO1887, TextileglassDeterminationofcombustiblematter
21、content . ISO1888, TextileglassStaplefibresorfilamentsDeterminationofaveragediameter . ISO3341, TextileglassYarnsDeterminationofbreakingforceandbreakingelongation . ISO35974, TextileglassreinforcedplasticsDeterminationofmechanicalpropertiesonrodsmadeofroving reinforcedresinPart4:Determinationofappar
22、entinterlaminarshearstrength . ISO/DIS15039, TextileglassrovingsDeterminationofsolubilityofsizing . 3 Termsanddefinitions ForthepurposesofthispartofthisEuropeanStandard,thetermsanddefinitionsgiveninENISO472:2001apply withthefollowingadditions: 3.1 characteristicproperties propertiesoftheglassfibrero
23、vingthatarenotnormallysubjecttotheplannedqualitycontrolintheproduction process 3.2 controlledproperties quantitativepropertiesoftheglassfibrerovingthataresubjecttotheplannedqualitycontrolintheproduction processEN140202:2002(E) 5 3.3 visualproperties qualitativepropertiesoftheglassfibrerovingthataren
24、otnecessarilysubjecttoroutinequalitycontrolinthe productionprocess 4 Visualappearance 4.1General Rovingsshowinganyofthefollowingdefectsmaybesubsequentlybefoundtocauseprocessingproblemsat customerspremises. Rovingproductsshouldbecheckedvisuallyduringtheproductionprocessagainstinternallydefinedaccepta
25、nce standards.Thequalitysystemshallbedeterminedbythemanufacturertoensureproductsofmarketablequality, suitablefortheintendedprocessingsystemsandconformingto,whereapplicable,customeracceptance requirements. 4.2ShapeDeviations: Theshapeofarovingbobbinmayshowdeviationsascomparedtoaperfectcylindrical sha
26、pewithprescribeddimensions.Firstofallthedimensions(bobbinheight,externaldiameterandinternal diameter)maydeviatefromtheprescribeddimensions.Moreovertheshapemaybenotperfectlycylindrical. Typicalshapedeviationsforrovingbobbinsare:roundcorners,barrelshape,doubleconvexshape,telescoped shapeanddogboneshap
27、e. 4.3Otherdefectsoriginatingfromtheproductionprocess: Themostcurrentarethefilamentationofthebobbin (shortsinglefilamentsprotrudingfromthesurfaceofthebobbin)andtheyellowdiscolourisationofthebobbin (generallyseenasasignofmigrationoroxidationoftheseizing). 5 Applicationperformance 5.1General Applicati
28、onperformancemaybedescribedbyeitherquantitativeorqualitativepropertiesthatdeterminethe processabilityoftheglassfibrerovinginthespecificapplicationforwhichitisintended.Inthesamewayasfor visualdefects,rovingproductsshouldbecheckedduringtheproductionprocessagainstinternallydefined acceptancestandards.
29、5.2Unwinding: Theactionoftakingtherovingfromtherovingbobbin.Thiscanbedoneeitherfromtheinside (internal)orfromtheoutside(external).Mostproductsaremadeforinternalunwinding,whichnecessarilyresultsin atwistintherovingaftereveryturning.Rovingsthataremadeforexternalunwindinggenerallyaremadeona cardboardtu
30、beandcanbetakenofftangentially(byhavingthebobbinrotatearounditsaxis),thusnotresultingin atwistintheroving. 5.3Fallingwindings: Canbedescribedasthefallingoftherovingfromthebobbin,buildingupadisorderlysetof rovingloops(coils)onthebottom. 5.4Ribbonisation: Canberegardedastheoppositeofsplit.Itisthetende
31、ncyofarovingtoappearasanonsplit entity.Alsosplitproductscanshowribbonisation,speciallyoftherovingdirectlyafterleavingthebobbin.However, forthesesplitproductsthisribbonisationmustdisappearduringtheprocess(speciallyafterpassingoftherovingof guidingpins,tensionbarsandthechopper). 5.5Catenary: Isthephen
32、omenonthatdifferentbundlesorstrandsinaroving(eitherinsplitproductsorinrovings thatshowfalsesplit)havedifferentlengths,resultingindifferentdisplacementsofthesebundleswhentherovingis suspended. 5.6Abrasionresistance(filamentationandsizingdeposit): Isthecapabilityoftherovingtomoveoverguiding pinsorinsi
33、deguidingtubeswithoutshowingchangesinrovingappearanceorinappearanceoftheguidingEN140202:2002(E) 6 devices.Changesinrovingappearancearemainlytheformationofloosefilamentsontheroving:filamentationor fuzzing.Thechangesintheappearanceoftheguidingdevicescanbethedepositofsizingatthelocationwhere therovingm
34、akescontact,thedepositofloosefilamentsorthewearoftheguidingdevice. 5.7Split,splitefficiencyandfalsesplit: Splitisthephenomenonthatarovingfallsapartintoseveralbundles. Thiscanbedoneonpurposee.g.forapplicationswheretherovingischopped.Thesesocalledsplitproductsare madeinsuchawaythatafterchoppingtherovi
35、ngfallsapartinamultiplestrands.Theratioofthenumberof strandsthatappearafterchoppingtherovingandthetheoreticalamountofstrandsthatshouldappeariscalledthe “splitefficiency”.Rovingsthatarenotmeanttofallapartintoseveralbundles(e.g.rovingsforweaving,filament windingorpultrusion)sometimesshowsplit,whichisc
36、alled“falsesplit”. 5.8Choppingandmatforming: Areaspectsofimportanceforrovingsforchoppingpurposes.Adefectduring choppingcanbeastaticrelatedbehaviourofthechoppedfibresduetothefactthattheyarechargedelectrically (resultinginchoppedstrandsthatjumpawayorsticktopartsofthecuttingdevice).Anotherdefectduringc
37、hopping canbethattherovingisnotchoppedcompletely,resultinginmultiplesofthecuttinglength(doublelengths,triple lengths,etc.).Matformingcanbecharacterisedbythethicknessofthemat,thecoarsenessofthemat(connected withstrandtex),matirregularity(connectedwithalowsplitefficiency)andtheoccurrenceof“tapes”,whic
38、hare choppedrovingsthatarepracticallynonsplittedandformthickpiecesinthemat. 5.9Impregnation: Istheabilityoftherovingtobewettedbytheresin.Adivisionshouldbemadebetweennon splitrovingsandsplitproducts(forchopping).Fornonsplitrovingsimpregnationcanbedefinedastheprocessof penetrationoftheresinthroughoutt
39、hebundle.Generallyrefractiveindicesofresinandglassarethesamesothat acompleteimpregnationcanbeobservedastherovingbecomingtransparentintheresin.Forsplitproductstwo stagesofimpregnationaredefined.Becauseofthefactthattheseproductsgenerallyarechoppedtoformamat thatisimpregnatedfromtheoutsidesofthemat,the
40、wettingthroughoutthematwithresindoesnotimplythatthe choppedstrandsinitarecompletelywetted.Thereforebothmacroimpregnation(wetthrough:wetting throughoutthematwithresin)andmicroimpregnation(wetout:wettingoftheindividualchoppedstrands)are defined. 6 Listoftestmethods Thelistofpropertieswiththeapplicable
41、testmethodshallbeconsideredasaguidefortheselectionofthe propertiesandlimitsforwhichwillbeapplicabletobethetechnicalspecificationsgiveninpart3ofthisstandard. Someofthepropertiesapplytoallrovingproductsindependentoftheapplication,whileothersarelimitedto specificapplications. Table1Controlledproperties
42、,mandatoryforallrovings Property Testmethod Lossonignition(sizecontent)(%) ISO1887 Lineardensity(tex) ENISO1889 Moisturecontent(%) ENISO3344 Table2Controlledproperties,optionalforspecificapplications Property Testmethod Indicativeapplication(s) Tensilestrength(cN/tex) ISO3341 Weaving Acetonesolubili
43、ty(%) ISO/DIS15039 Sprayup,SMC Impregnatedstrength(MPa) ENISO9163 Pultrusion,filamentwinding Impregnationandcomposite characteristics(ILSS)(MPa) ISO35974or ENISO14130 Weaving,pultrusion,filamentwindingEN140202:2002(E) 7 Table3Characteristicproperties(notnormallysubjecttoplannedqualitycontrol),forallrovings Property Testmethodorclassification Filamentdiameter( m m) ISO1888 Glasstype() ENISO2078 7Sampling Thesamplesshallbetakenusingstatisticaltechniquesagreedbetweentheinterestedpartiesand,ifrequired, re
