精品资料，欢迎大家下载！以上资料仅供参考，如有侵权，留言删除！Recently,blendingofpolymershasbecomeanincreasinglyimportantareaofresearchactivity.Elastomericblendsareusedformanyreasonssuchasloweringthecompoundcost,foreaseoffabricationandtoimprovetheperformanceoftheindustrialrubber.Naturalrubber(NR)andstyrenebutadienerubber(SBR)havebeenblendedforalongtimeforthesereasons.Inthisstudy,12differentrubbercompoundswerepreparedbyusingSMR-20typeofnaturalrubberandSBR-1502typeofstyrene-butadienerubberindifferentproportions,keepingfixedthetotalrubberquantityspecifiedinthestandardtestingrecipe.Themechanicalandphysicalproperties-suchastensilestrength,hardness,wear,carbonblack,ozoneresistance,densityandrheologicalpropertiesofthepresentindustrialrubber-werestudied.Physicalandmechanicaltestresultswerereported.Thetensile,hardnessandwearpropertiesoftheNR/SBRblendswiththeincrementofNRpercentagesweregreatlyenhanced.Thestudyalsoindicatedthatfillermaterialsaffectonthephysicalandmechanicalpropertiesoftheblends.Blendingoftwoormoretypesofpolymerisausefultechniqueforthepreparationanddevelopingmaterialswithpropertiessuperiortothoseofindividualconstituents.Itisimportantespeciallyfromanindustrialpointofviewtocontrolthestateofmixingofpolymerblends.Anadequatepolymer-blendprocessrequiresinformationandunderstandingoftheblendbehaviorunderproductionconditions.Theknowledgeoftherelationshipamongmeltviscosity,elasticity,andpressureandprocesstemperatureisimportantforthedesignappropriateprocessequipmentandforassessmentoftheoptimumprocessconditionstoproducematerialsthathaverequiredproperties.Naturalrubberhasbeenstudiedandreportedonextensivelybecauseofitssuperiorperformanceintireapplications.Itiswellinstalledthatelastomersdonotdisplayallofthecharacteristicsthatarerequired.Elastomericblendsareusedformanypurposessuchasloweringthecompoundcost.Thecomplexshapedproductmaybemoreeasilyfabricatedduringproduction.Naturalrubber(NR)andstyrene-butadienerubber(SBR)havebeenblendedforalongtimeforthesereasons.Alotofstudieshavedemonstratedthatthemechanicalpropertiesofsuchblendscanbesignificantlyimprovedbyaddingasuitablecompatibiliser.NRblendinghasbeenwidelystudiedandreportedasgoodcompatibleblendsthatprovidedesirablemechanicalproperties.Anotherpaperabout精品资料，欢迎大家下载！以上资料仅供参考，如有侵权，留言删除！thedevelopmentofnovelelastomericblendscontainingNRandultra-low-densitypolyethylene(ULDPE)reportedbyTanrattanakulandUdomkichdecha.Conventionalvulcanizationwasperformedandthephysicalandmechanicalpropertiesoftheblendweredetermined.TheresultswerecomparedwiththoseobtainedfromNRblendingwithSBR.BlendingSBRwithNRcanimprovethetensilestrengthbecauseNRcrystallizesonstretching.KiminvestigatedthemechanicalpropertiesofNRblendedwithSBR.Thosestudyindicatedthatthemechanicalpropertiesofthisblendwererequiredreinforcement.Thus,filledpolymersystemsareverypopularfortheindustryforbothcostandperformanceobjectives.Itisalsowellestablishedthatcarbonblack(CB)isoneofthemostimportantclassicalreinforcingfillers,especiallyfortherubbertechnologyforcheaperVulcansates.Newmaterialsarealsoconsideredasfillers,whetherformoreeconomicalreasonsorrathertoimpartsomedesirablecharacteristicsofCBasoneofthemajorinputsintireindustry,hassomeextraordinaryfeatures.SurfaceareaofCBisoneofthemostcriticalparametersconsideredfordegreeofreinforcement,whichsupplynecessarysitestopol...
