ASTM D6746-2010 测定生橡胶或未硫化混合物的湿强度和应力松弛的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminationofGreenStrengthandStressRelaxationofRawRubberorUnvulcanizedCompounds
【原文标准名称】:测定生橡胶或未硫化混合物的湿强度和应力松弛的标准试验方法
【标准号】:ASTMD6746-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D11.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:green;greenstressrelaxation;rawrubber;rubber;stressrelaxation;tensilegreenmodulus;tensilegreenstrength;unvulcanizedcompounds;yieldstress;Rawrubber;Stress-straintesting;Tensilegreenstrength;Tensileproperties/testing--rubber/relat
【摘要】:Thestress-strainpropertiesofunvulcanizedrubber(eitherinacompoundorintherawstate)areimportanttocertainprocessingoperationsintherubberindustry.Theseunvulcanizedrubberpropertiesarefrequentlyreferredtoasx201C;greenstrength.x201D;Greenstrengthisdeterminedprimarilybythephysicalandchemicalcharacteristicsofpolymers,suchasmolecularweight,tendencytocrystallize,degreeofbranching,andsoforth.Itisalsorelatedtothecompoundformulation,particularlyfillerandplasticizercontent,andthepresenceofpeptizers.Greenstrengthcanbeagoodindicationofprocessingbehavior.Itisaparticularlyimportantcharacteristicforallprocessingoperationsinwhichelongationpredominates.Greenstrengthisdependentonthetestpiecepreparation,rateofextension,andtesttemperature.Therefore,asingle-pointmethodcannotbeexpectedtogivecorrelationbetweengreenstrengthandprocessingbehavioroverthewholerangeofprocessingconditions.1.1Thistestmethodcoversmethodstoevaluateacharacteristicofrawrubberorunvulcanizedrubbercompoundsthatisdesignatedasgreenstrength.Thisspecialstrengthpropertyforuncuredrubbersisanimportantprocessingperformanceattributeinrubberproductmanufacturing.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G34
【国际标准分类号】:83_040_20
【页数】:5P.;A4
【正文语种】:英语