Theperoxidepolymerizationinitiatedradicalpolymerizationisinitiatedpolymerization.Thepolymerizationprocessisusedforthepolymerizationofhighcontentofstyreneandmethylstyreneinthepolymerizationmonomer.Fore¡
Atpresent,ahigh-gradeC5petroleumresinorapetroleumresinofthemeta-pentadieneissubjectedtocatalyticpolymerizationusingacatalyst,andthepolymerizationreaction.Thesofteningpointoftheobtainedpetroleumresinis¡
Dicyclopentadiene(DCPD)petroleumresinistheuseofC5fractionsobtainedbythermalpolymerizationanddistillationseparationofindustrialdicyclopentadieneorhigh-puritydicyclopentadienehightemperatureandpressuret¡
Downstreammarket:Sofar,realestatenewhometradingsituationisnotideal,andmostlywait-and-seestate,coupledwithrestrictedcreditandotherrestrictionsontheroleofanumberofcontrolpolicyportfolio,thepropertymarke¡
TheglobalpetroleumresinmarketisexpectedtogrowfromUS$1.78billionin2016toUS$2.58billionin2021,acompoundannualgrowthrateof7.7%.Themarketisdrivenbytheincreasingdemandforend-useproductssuchaspersonalhygien¡
Petroleumresinisdividedintoaliphaticresin(C5),cycloaliphaticresin(DCPD),aromaticresin(C9),aliphatic/aromaticcopolymerresin(C5/C9)andhydrogenatedpetroleumresinaccordingtodifferentrawmaterials.C5hydroge¡
C5petroleumresinhasthecharacteristicsofhighsofteningpointanddeepcolor,butthecolorofC5petroleumresinisrelativelyshallow,butthesofteningpointislow,andtheC5/C9copolymerresinwithcomparativelylightcolorand¡
Petroleumresinisaby-productC5/C9distillateinpetroleumcrackingprocessasrawmaterial,sulfuricacid,anhydrousaluminumtrichloride,borontrifluorideorborontrifluoride,etc.ascatalyst,obtainedbycatalyticpolymer¡
Internationally,rawmaterialsandtechnologyconstraints,therearestillsomeoftheethyleneproductioncapacityofbackwardcountriescannotindependentlyproducepetroleumresin,needtorelyonalargenumberofimportstomeet¡
Inrecentyears,ChinaC5petroleumresinindustryisdevelopingrapidly,bothinproductioncapacityandtechnologyhaverapiddevelopment.Accordingtostatistics,C5petroleumresinproductioncapacityfrom300,000tonsin2011in¡
1.SofteningpointThetemperatureatwhichtheresindeformsatagivenheatload.Thesofteningpointgivestheviscosityindexwithintheresinwhichiscontrolledbytheaveragemolecularweightoftheoligomer.Thesofteningpointoft¡
Physicalproperties:TheuseofC9petroleumresinfractionsfortheproductionofpetroleumresinknownasC9petroleumresin.(C8~C11)fromtheheavyby-productpyrolysisoilaftertheseparationofbenzene,toluene,xylenebytheaci¡
Industrialproduction,with10%NaOHaqueoussolutiontoremovethecatalyst,thesolutioncolorthelightest,butalsothemosteconomical.ThepolymersolutionafterthecatalystwashingwasremovedwithanaqueoussolutionofNaOH,a¡
TheinfluenceofreactiontemperatureonthepropertiesofC5petroleumresinismainlydeterminedbythecompositionofC5rawmaterial.UsuallyC5petroleumresinusedintheC5fractionsinthehighcontentofolefinmixture,monomerac¡
C5petroleumresinrequiressubsequentprocessingandmixing,whichrequiresacertaindegreeofthermalagingresistanceoftheresin,itisnecessarytoaddacertainamountofantioxidantstoimprovetheoxidationresistanceofthere¡
Atpresent,researchersarestudyingsomenewcatalysts,suchasionicliquidcatalyst.Astheliquidcatalystcanbeevenlydistributedinthereactionsolutionforhomogeneouscatalysis,sotheamountofcatalystissmall,andcanbere¡
C5monomercompositionisrelativelycomplex,includingcyclodienes(suchascyclopentadiene,dicyclopentadiene),diene(isoprene,cisortrans-metopentadiene),monoene(isobutylene,1Butene,cisortrans2-butene,2-methyl-¡
C5petroleumresinisathermoplasticresinwithrelativemolecularweightof300-3000.Ithasexcellentpropertiessuchasinsolubleinwater,solubleinorganicsolvent,acidresistance,alkaliresistance,waterresistance,chemic¡
Thedevelopmentofpetrochemicalindustryarichandinexpensiverawmaterialsfortheproductionofpetroleumresin,petroleumresininsomepetrochemicaldevelopedcountries,therapiddevelopmentofproduction,suchastheUnited¡
Atpresent,China'spetroleumresinproductionenterprisesabout60-80,thetotalproductionC9resin,C5/C9copolymerresin,hydrogenationpetroleumresin,productionequipmenttoC9petroleumresin,accountingfor70%ofthetota¡