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SIWEI · News
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Plastic modified high-tech enterprise
ShenyangSiweiPolymerPlasticCo.,Ltd.isahigh-techenterprisespecializinginplasticmodification.Ithasstrongeconomicstrengthandtechnicallevel.Theproductsarewidelyusedinhouseholdappliances,automobiles,aviation,railwaysandotherfields.Marketshare.Four-dimensionalpeopleadheretotheideasofhightechnology,marketizationandinternationalizationoftechnology,brandandcapital,adheringtotheprincipleof"respectandsincerity,servingthesociety",pragmaticinnovation,excellence,andstrivetoinjectnewvitalityintotheengineeringplasticsindustry..Inrecentyears,SiweihassuccessivelydevelopedEPE(PearlCotton)civilianproducts,whicharemainlyusedingeothermal,packaging,dailynecessitiesandotherindustries,whichareeconomic,beautiful,convenientanddurable,andarehighlypraisedbyconsumers.Themainproductsare:toughenerseriesTonerseriesmodifiedplasticseriesthermoplasticpolyurethaneelastomer(TPU)
2017-02-23
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Development and Application of Reinforced and Toughened Filling Masterbatch
Withtherapiddevelopmentofpolymerscienceandtechnology,society'srequirementsforpolymermaterialsarealsoincreasing.Itisoftendifficultforasinglepolymermaterialtomeetthisrequirement,anditisnecessarytomodifythepolymermaterialbymeansofalloying,blending,andcompounding(abbreviatedasabc)inordertomaximizethecharacteristicsofeachcomponentandgiveasinglematerialGoodqualitynotavailable.Theresearchanddevelopmentofhigh-performancecompositematerialshavebecomeanimportantpartofcontemporaryhightechnologyandanimportantdevelopmenttrendofpolymermaterials.Itismovingtowardshighspecificstrength,highspecificmodulus,hightoughness,hightemperatureresistance,corrosionresistance,andresistance.Wearandotherdevelopments.Amongthem,bothtoughenedandreinforcedpolymercompositematerialshavebecomeahotspotofengineeringplasticsmodificationresearch.However,fromtheperspectiveofmaterialsscience,strengthandtoughnessaretwoparticularlyimportantbutcontradictorymechanicalpropertiesofstructuralmaterials.Theproblemofsimultaneousreinforcementandtougheningofmaterialshasalwaysbeenoneoftheimportantproblemstobesolvedinpolymermaterialsscience.. Generallyspeaking,therigidparticlesfilledintothepolymermatrixcaneffectivelyimprovethestrength,stiffnessanddimensionalstabilityofthematerial,butatthesametimeitisveryeasytocausetheincreaseofpolymerbrittleness.Tougheningthermoplasticswithelastomers,whilestiffening,reducesthestiffness,strength,andtemperatureofthematerial.Thepolymer/elastomer/fillerthree-phasecompositematerialformedbyaddingrigidparticlesandrubberatthesametimebymechanicalblendingcanbalancethecontradictionbetweentherigidityandtoughnessofthematerialwithinacertainrange,butitcannotsimultaneouslyobtainhigh-strengthandhigh-performancepolymermaterials..Therefore,sincethe1980s,newwaystomodifypolymerswithnon-elastomers(rigidparticles)havebeenproposed.FundedbytheNationalNaturalScienceFoundationofChinaKeyLaboratory,thislaboratoryfirstcarriedoutbasicandappliedbasicresearchonpolymerinelastictougheninginChina.Afteryearsofhardwork,wereplacedinorganicrubbertoughenedpolymercompositematerialswithrigidinorganicparticlesandThetougheningmechanismhasbeensystematicallystudiedindepth,andbreakthroughshavebeenmade.Intheory,itisclarifiedthatinadditiontotherequirementsontheparticlesizeandparticlesizedistributionofthefiller,thetoughenedpolymerofinorganicrigidparticlesmustproposeanewstructuralformforitsinterfacialphasestructure,thatis,ithasgoodembeddingarounduniformlydispersedrigidparticlesTheinterfaceiscombinedwithaflexibleinterfacephaseofacertainthickness,sothatwhenthematerialisdamaged,itcannotonlyinducesilverstreaks,stopcrackexpansion,butalsotriggertheshearyieldofthematrixundercertainmorphologicalandstructuralconditions,therebydissipatingalargeamountofimpactenergy.However,theabove-mentionedinterfacialphasestructureisformedduringthereactiveextrusionprocess,thematerialperformanceisunstable,theoperationcycleislong,anditisdifficulttocontrol,soitisdifficulttoputthehighrigidityandhightoughnesspolymercompositematerialdevelopedinthelaboratoryintoindustrializationIntheproductionstage,underthesupportofthenational"863"project,theideaofpreparinghigh-performancecompositematerialswithreinforcedandtoughenedmasterbatchwasputforward,andundertheguidanceofthisidea,successfullydevelopedreinforcedandtoughenedfillerforpolypropyleneMasterbatchandtougheningagentmasterbatchfornylonmodification.Thedevelopmentofreinforcedandtoughenedfillermasterbatchinvolvesalargenumberofedgedisciplines:interfacemoleculardesign,physicalandchemicalmodificationoffillerandpolymersurfaces,surfaceperformancecharacterization,synthesisofinterfacecompatibilizers,interfaceinteraction,rheologicalbehavior,fillerdispersionspeedAndthedegreeofdispersion,thecrystallizationbehaviorofthepolymer,themechanicalpropertiesofthematerial,themechanismofstrengtheningandtoughening,soitisaverycomplexandverymeaningful.Afterstudyingtherelationshipbetweenthesurfacepropertiesofinorganicparticles,themicrostructureofthedispersedphaseandthemechanicalpropertiesofthematerials,wesummarizedthefourbasicprinciplesrequiredtopreparehigh-performancepolymercompositeswithreinforcedandtoughenedfillermasterbatchandcreativelysolvedtheinorganicThekeytechnicalproblemsofuniformdispersionofparticlesandinterfacialcombinationarethroughtheuseofefficientinterfacemodifiersandtheapplicationofreactiveextrusionprocessingmethods,andtherealizationofasmallamountofrubberinsituinfiltrationandcoatingofinorganicrigidparticleshasbeensuccessfullydeveloped.Anewtypeofpolymer/inorganicparticle"shell-core"reinforcedandtoughenedfilledmasterbatchwithmonodisperseinorganicparticlesasthecoreandasmallamountofelastomerastheshell. Reinforcedandtoughenedfilledmasterbatchhasthefollowingcharacteristics: 1.Theadditionoffilledmasterbatchnotonlycansignificantlyimprovetheprocessingrheologicalpropertiesofthepolymer,butalsocanbequicklyandevenlydispersedagaininthepolymermatrix.Therefore,thecompositeprocessoffilledmasterbatchandpolymerissimplifiedfromsecondaryprocessingtoOne-timeprocessingbecomespossible. 2.Theadditionofthe
2011-03-29
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