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【英文标准名称】:TestMethodforMeasuringtheDynamicMechanicalPropertiesofPlasticsUsingThreePointBending(08.03)
【原文标准名称】:用三点弯曲测量塑料动态机械特性的方法
【标准号】:ANSI/ASTMD5023-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:2001-09-25
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:热固性聚合物;弯曲试验;试验;流动性;塑料
【英文主题词】:plastics;testing;abilitiestoflow;thermosettingpolymers;bendtesting
【摘要】:Thistestmethodcoverstheuseofdynamicmechanicalinstrumentationforgatheringandreportingthevisco-elasticpropertiesofthermoplasticandthermosettingresinsandcompositesystemsintheformofrectangularbarsmoldeddirectlyorcutfromsheets,plates,ormoldedshapes.Thedatagenerated,usingthree-pointbendingtechniques,maybeusedtoidentifythethermomechanicalpropertiesofaplasticsmaterialorcompositionusingavarietyofdynamicmechanicalinstruments.Thistestmethodisintendedtoprovidemeansfordeterminingthemodulusasafunctionoftemperatureforawidevarietyofplasticsmaterialsusingnonresonantforced-vibrationtechniques,inaccordancewithPracticeD4065.Plotsoftheelastic(storage);loss(viscous);andcomplexmoduliandtandeltaasafunctionoffrequency,time,ortemperatureareindicativeofsignificanttransitionsinthethermomechanicalperformanceofthepolymericmaterialsystem.Thistestmethodisvalidforawiderangeoffrequencies,typicallyfrom0.01to100Hz.Apparentdiscrepanciesmayariseinresultsobtainedunderdifferingexperimentalconditions.Theseapparentdifferencesfromresultsobservedinanotherstudycanusuallybereconciled,withoutchangingtheobserveddata,byreportinginfull(asdescribedinthistestmethod)theconditionsunderwhichthedatawereobtained.Duetopossibleinstrumentationcompliance,thedatageneratedareintendedtoindicaterelativeandnotnecessarilyabsolutepropertyvalues.Testdataobtainedbythistestmethodarerelevantandappropriateforuseinengineeringdesign.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1-ThereisnosimilarorequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:
【正文语种】:英语