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【英文标准名称】:Plastics-Unsaturated-polyesterresins-Determinationofreactivityat130°C
【原文标准名称】:塑料.不饱和聚酯树脂.130℃时反应特性测定
【标准号】:ISO14848-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:化学性质;不饱和的;活性;聚酯树脂;塑料;聚合;模塑材料;测定
【英文主题词】:Chemicalproperties;Determination;Mouldingmaterials;Plastics;Polyesterresins;Polymerization;Reactivity;Unsaturated
【摘要】:ThisInternationalStandardspecifiesamethodofmeasuring-thetimerequiredforthetemperatureofasolutionofunsaturated-polyesterresinandacatalyst,heatedinathermostaticallycontrolledbathat130℃,torise·from80℃to140℃,·from80℃tothemaximumtemperaturereached;-themaximumtemperaturereached;-thespeedofthereaction,determinedbydrawingatangentatthepointofinflectionofthetemperature/timecurve.Itappliesinparticulartounsaturated-polyesterresinsprocessedatatemperaturehigherthan100℃.NOTE-Theresultsarecloselylinkedtotheconditions.TheaimofthisInternationalStandardistodefinethemasexactlyaspossible,particularlythefollowing:a)Thequantityandformoftheresinsamplebeingexamined(testtubediameter,heightofresininthetube).b)Therateatwhichthesampleisheatedinthebath.Forexample,theuseofaliquidhavingarelativelylowheatcapacity(ethyleneglycol,siliconeoil)leadstoslowerheating.c)Thetypeofthermometerused.Thermometershavingaresponseslowerthanthatofathermocouple,andresistanceprobeshavingtoolargeaheat-sensitiveelement,areunsuitable.d)Thepositionoftheheat-sensitiveelementintheresin,bothheightwiseandrelativetotheaxisofthetesttubecontainingtheresin.e)Thenatureofthecatalyst.
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:5P;A4
【正文语种】:英语