ASTM D7028-2007e1 用动态力学分析法(DMA)测定聚合物基复合材料的玻璃化转变温度的标准试验方法

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【英文标准名称】:StandardTestMethodforGlassTransitionTemperature(DMATg)ofPolymerMatrixCompositesbyDynamicMechanicalAnalysis(DMA)
【原文标准名称】:用动态力学分析法(DMA)测定聚合物基复合材料的玻璃化转变温度的标准试验方法
【标准号】:ASTMD7028-2007e1
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D30.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:composite;DMA;dynamicmechanicalanalysis;glasstransitiontemperature;polymermatrixcomposite;Dynamicmechanicalanalysis(DMA);Glasstransition;Glasstransitiontemperature;Polymermatrixcompositematerials
【摘要】:ThistestmethodisdesignedtodeterminetheglasstransitiontemperatureofcontinuousfiberreinforcedpolymercompositesusingtheDMAmethod.TheDMATgvalueisfrequentlyusedtoindicatetheupperusetemperatureofcompositematerials,aswellasforqualitycontrolofcompositematerials.1.1Thistestmethodcoverstheprocedureforthedeterminationofthedryorwet(moistureconditioned)glasstransitiontemperature(Tg)ofpolymermatrixcompositescontaininghigh-modulus,20GPa(>3x00D7;106psi),fibersusingadynamicmechanicalanalyzer(DMA)underflexuraloscillationmode,whichisaspecificsubsetoftheDynamicMechanicalAnalysis(DMA)method.1.2Theglasstransitiontemperatureisdependentuponthephysicalpropertymeasured,thetypeofmeasuringapparatusandtheexperimentalparametersused.Theglasstransitiontemperaturedeterminedbythistestmethod(referredtoasx201C;DMATgx201D;)maynotbethesameasthatreportedbyothermeasurementtechniquesonthesametestspecimen.1.3Thistestmethodisprimarilyintendedforpolymermatrixcompositesreinforcedbycontinuous,oriented,high-modulusfibers.Othermaterials,suchasneatresin,mayrequirenon-standarddeviationsfromthistestmethodtoachievemeaningfulresults.1.4ThevaluesstatedinSIunitsarestandard.Thevaluesgiveninparenthesesarenon-standardmathematicalconversionstocommonunitsthatareprovidedforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_120
【页数】:14P.;A4
【正文语种】:英语