ASTM E2041-2003 用BORCHARDT和DANIELS法的差别扫描热量仪评估运动参数的标准方法

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【英文标准名称】:StandardMethodforEstimatingKineticParametersbyDifferentialScanningCalorimeterUsingtheBorchardtandDanielsMethod
【原文标准名称】:用BORCHARDT和DANIELS法的差别扫描热量仪评估运动参数的标准方法
【标准号】:ASTME2041-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:E37.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:参数;估计;动力学;热量计
【英文主题词】:activationenergy;Arrheniusfrequencyfactor;BorchardtandDanielskinetics;differentialscanningcalorimetry(DSC);kinetics;pre-exponentialfactor;reactions
【摘要】:Thistestmethodisusefulinresearchanddevelopment.,Thedeterminationoftheappropriatemodelforachemicalreactionortransformationandthevaluesassociatedwithitskineticparametersmaybeusedintheestimationofreactionperformanceattemperaturesortimeconditionsnoteasilytested.Thisuse,however,isnotdescribedinthistestmethod.1.1Thistestmethoddescribesthedeterminationofthekineticparametersofactivationenergy,Arrheniuspre-exponentialfactor,andreactionorderusingtheBorchardtandDanielstreatmentofdataobtainedbydifferentialscanningcalorimetry.Thistestmethodisapplicabletothetemperaturerangefrom170to870K(100to600176;C).1.2Thistreatmentisapplicableonlytosmoothexothermicreactionswithnoshoulders,discontinuouschanges,orshiftsinbaseline.Itisapplicableonlytoreactionswithreactionordern2.Itisnotapplicabletoautocatalyzedreactionsand,therefore,isnotapplicabletothedeterminationofkineticparametersformostthermosetcuringreactionsortocrystallizationreactions.1.3Electronicinstrumentationorautomateddataanalysissystemsortreatmentsequivalenttothistestmethodmaybeused.Note18212;Theuserisadvisedthatallelectronicdatatreatmentmaynotbeequivalent.Itistheresponsibilityoftheuserofsuchelectronicdatatreatmenttoverifyapplicabilitytothistestmethod.1.4SIvaluesarethestandard.1.5Thistestmethodissimilar,butnotequivalentto,ISOMethod11357,Part5,whichcontainsprovisionsforadditionalinformationnotsuppliedbythistestmethod.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:17_200_10
【页数】:9P.;A4
【正文语种】: