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【英文标准名称】:Methodsoftestingplastics-Mechanicalproperties-Shearvibration-Non-resonancemethod
【原文标准名称】:塑料试验方法..第3部分:机械特性.试验方法323C:剪切振动.非共振法
【标准号】:BS2782-3Method323C-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-09-15
【实施或试行日期】:1996-09-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:报告;剪切试验;机械试验;振动试验;剪切强度;塑料和橡胶技术;剪应变;高聚物;数学计算;塑料;试验设备;试样
【英文主题词】:Definition;Definitions;Determination;Dynamictesting;Mechanicalproperties;Plastics;Polymers;Shearmodulus;Testing
【摘要】:ThispartofISO6721describesaforced,non-resonancemethodfordeterminingthecomponentsoftheshearcomplexmodulusGofpolymersatfre-quenciestypicallyintherange0,01Hzto100Hz.Themethodissuitableformeasuringdynamicstoragemoduliintherange0,1MPato50MPa.Althoughmaterialswithmoduligreaterthan50MPamaybestudied,moreaccuratemeasurementsoftheirdy-namicshearpropertiescanbemadeusingatorsionalmodeofdeformation(seeparts2and7ofISO6721).Thismethodisparticularlysuitedtothemeasurementoflossfactorsgreaterthan0,1andmaythereforebeconvenientlyusedtostudythevariationofdynamicpropertieswithtemperatureandfrequencythroughmostoftheglass-rubberrelaxationregion(seeISO6721-1:1994,subclause9.4).Theavailabilityofdatadeterminedoverwiderangesofbothfrequencyandtemperatureenablesmasterplotstobederived,usingfrequency/temperatureshiftprocedures,whichdisplaydynamicpropertiesoveranextendedfre-quencyrangeatdifferenttemperatures.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:16P;A4
【正文语种】:英语