Domesticpetroleumresinmarket,someofthedomesticexportsofresin,usedforforeignrubberprocessingandhydrogenationofpetroleumresinrawmaterials.DomesticuseofaseriesofpetroleumresinandC5,C9copolymerresinandhyd¡
Inrecentyears,China'simportsofpetroleumresinincreasedyearbyyear,in2000reached28,000t,importedproductsarehigh-gradespecialgradepetroleumresin.Inviewofthissituation,thedomesticlarge-scalepetrochemicalco¡
Astheuseofrawmaterialsandpolymerizationprocessisdifferentfromthecolorlessresintothereddishbrowncolor,themainreasonisthatthepolymerchaincontainsunsaturateddoublebond,oxidationstabilityisnotgood.Inrecen¡
Atpresent,theproductionofpetroleumresinismainlyconcentratedintheUnitedStates,JapanandWesternEuropeandothercountriesandregions,therapidgrowthofpetroleumresinproduction,thecurrentmajorwesterncountries,t¡
Petroleumresinsareoftenusedincombinationwithotherpolymerstoimproveorincreasesomeofthecharacteristicsoftheproduct.Becauseofthelowpriceofpetroleumresin,itiscompatiblewithmanysolventsotherthanalcohol,and¡
Atpresent,thepetroleumresinhasenteredtheeraoftechnologicalcompetition,themanufacturersactuallydevelopedmorevarieties,newgradesandspecial-typeresin,toexpanditsapplicationrange,mainlyinthefollowingareas¡
Petroleumresinisaby-productoftheethyleneplantC5,C9fractionsasthemainrawmaterial,polymerizationofsolidorviscousliquidstateoflowmolecularweightpolymer.Ithasalowacidvalue,miscible,lowmeltingpoint,goodadh¡
Foreigntechnologyofhydrogenatedpetroleumresinafteryearsofdevelopmenthasbecomemature,mostoftheproductioncapacityofpetroleumresinhydrogenationplantinthe20000t/aorso.Duetotheincreaseofproductionscaleandt¡
Inrecentyears,withthevigorousdevelopmentofChina'spetrochemicalindustry,especiallytheincreaseinsomelarge-scaleethyleneplant,asaby-productofthepetroleumresinproductionisincreasingyearbyyear,sothedevelop¡
Acidvalue:Theacidvaluerepresentsthecarboxylicacidcontentofthecarbon-5petroleumresinmoleculeandisameasureofthedegreeofchangeofthecarboxylcompoundofthepetroleumresinafterbeingplacedintheair.Ash:Theprese¡
Theformationofimpuritiesmainlyintheflashprocessofhightemperatureandresidencetimeistoolong,resultinginpetroleumresinoxidation,carbonationandtheformationofcarbides.Toreducetheliquidlevelwithinthehightem¡
TheC5andC9fractionsoftheethyleneplantareusedasthestartingmaterials,andafterpretreatmentoftherawmaterialssuchasrectificationandcutting,theeffectivecomponentsofthepetroleumresinareobtained.Aftertheanhyd¡
C5petroleumresinisalowmolecularweightpolymerobtainedbytheseparationandcopolymerizationofC5olefinsasaby-productofethyleneplant.Withitsexcellentperformanceandwideapplicationfields,C5petroleumresinisgain¡
Inviewofthedifferentrawmaterialsandpolymerizationprocess,petroleumresinwascolorlesstoreddishbrownvarietyofcolor,colorismainlyduetothepolymerchaincontainsunsaturateddoublebonds,oxidationstabilityisnotg¡
C5petroleumresin,hasalreadyoccupiedanimportantpositionastackifyingresin.Thelargestamountofwhichishot-meltadhesivesandpressure-sensitiveadhesive,rubbertiresandotherfields,petroleumresinissuitableforhot¡
Withtheincreasingimportanceofenvironmentalprotection,adhesivesandcoatingsandotherproductsinthewater-basedtypeofcontinuousimprovement.Asaneffectivetackifier,petroleumresinhasanewrequirement,thatis,theo¡
C5petroleumresininthetransportationandloadingandunloadingprocessprohibittheuseofsharphooksandothertools,avoidthrowingtoavoiddamagetothebags,transportshallnotbesunexposureorrain,notwithsand,metal,coala¡
Rawmaterialsofpetroleumresinproduction,somesubstancessuchaspentene,pentadiene,cyclopentadiene,styreneandotherhightemperatureorlong-termstoragecanoccurself-polymerizationreaction.Intheself-polymerizati¡
Petroleumresinproductionprocessusedinallbelongtotheflammableandexplosiveitems,butalsohasacertaintoxicity.Petroleumresinintherawmaterialfractionation,polymerizationandproductfractionationunithasalargen¡
C5petroleumresinhashotmeltadhesive,highpeelstrength.MaybeduetothebestcompatibilityofC5petroleumresinandthesystem.Atpresent,inthefieldofdomestichotmeltresearch,manymaterialscanbeaddedasamodifiertothefo¡