--东莞市捷帆塑胶原料有限公司----DongguanJiefanplasticmaterialCoLtd--提供-韩国晓星PPS800FTopileneS800F东莞捷帆塑胶原料公司成立以来，我公司就对广大客户提供超高的服务态度品质，我们将塑胶原料做为根本中心，宗旨就是客户就是lord，也是我们的Family，我们以全心全意为广大客户们***好的服务！我公司的聚丙烯PP乃是我公司主打的通用型塑料，聚丙烯它是一种Noodor、Odorless、Nopoison的一种高性能高结晶型聚合物，另外我们有额外的***技术人员为你解答聚丙烯成型和加工难题等方面问题。我们将还提供另种聚丙烯PP（高硬度PP、韧性PP、导电PP、阻燃PP等）。我公司的塑料货源充足（adequate）、稳定（Stable）、品种多（Manyvarieties），另外我们是从自家的仓库里本人提货，所以请各位大可放心质量。Atpresent,polypropylenePPisthelightestplasticamongallplastics,especiallyitsdensityisonly0.90-0.91g/cm3,whichisamazing.Istheshrinkageofplasticbetteror***aller?Infact,theshrinkageofplasticistoolargetocontroltheactualsizeoftheproduct,whichwillresultinlowprecisionoftheproduct.Therefore,polypropylenePPhasgoodmoldingperformance,butitsshrinkagerateistoolarge,whichleadstotheproblemthatthickwallproductsareeasytosag.PolypropylenePPhashighcrystallinityinmechanicalproperties,highvalueinstrengthandhardness,andhigherelasticitythanHDPE,butitisfarlowerthanHDPEatlowtemperatureandroomtemperature.ThemostimportantthingtoknowaboutthemechanicalpropertiesofpolypropylenePPisthatitsbendingfatigueresistanceisthebest,whichisexactlyhowpolypropylenePPcanwithstand7x107timesofopenandclosebending,soastoensurethattherewillbenodamagetrace,butpolypropylenePPcannotguaranteebetterwithPAnylonunderlubrication,butthedryfrictioncoefficientofpolypropylenePPisclosetothatofnylon.PolypropylenePPhasgoodheatresistance,canbesterilizedandsterilizedundertheconditionofproductsabove100℃,andwillnotdeformunder150℃,providedthatpolypropylenePPcannotbeexertedwithoutexternalforce.ThecoldresistanceandpolyethyleneofpolypropylenePParefarfromenough,andPPwillh***e***iousembrittlementwhenitislowerthan-35℃.Insomeaspects,theperformanceofpolypropylenePPisstillinsufficientcomparedwithotherplastics.Asthesayinggoes,thestrengthisstrongerthanthestrength.JudgingfromthecurrentplasticMarketsituation,polypropylenePPisrelativelycompetitive.PolypropylenePPhasaveryhighdielectriccoefficient,soitsinsulationperformancewillnotbeaffectedbyhumidity.Therefore,itcanbeusedasthermalelectricalinsulationproductssuchasinsulationtape,electricalboard,insulationfastbarpaper.ThechemicalstabilityofpolypropylenePPisexcellent,butexceptforconcentratednitricacidandconcentratedsulfuricacid,theyarestableforotherreagents.Chlorinatedhydrocarbonandaromatichydrocarbonh***egreatinfluenceonpolypropylenePP,whichcanmakepolypropylenePPswellandsoften,butitsanti-corrosionperformanceisverygood.UVhasagreatinfluenceonPP,whichmakesPPagingrapidly.Onlyaddingdilauratethiopropionate,zincoxide,opalfillerandcarbonblackcanimprovetheagingresistanceofPP.carbonblackcannotonlyimprovetheagingresistanceofPP,butalsoimprovethelightresistanceofPP.聚丙烯PP在成型期间它的接受适应能力很强，像普遍的注塑机可使用。聚丙烯PP在制品当中如想要更好的制品美观，可以选择着色剂来增加产品的美观，而且还能改善在制品过程中某些性能。前面我们说到碳黑可以改善聚丙烯PP的耐光性能，***为弊端的一点如果选择不恰当的话会造成对制品危害，比如酞菁系颜料骊聚丙烯的老化在前期有***作用，随着时间的不断增长会导致制品的老化，所以在使用时仔细选择合适的。折叠性能方面上聚丙烯PP被制作许多铰链的制品，但是在模具的设计时候它的折叠性能在很大的程度上取决于模具结构的合理性，所以我们需要注意模具设计的好坏。说到聚丙烯PP在制品中需要注意那些方面，我们就来说道聚丙烯PP它到底能制作什么产品？***成型制品目前是聚丙烯PP应用***大的，***成型是将塑料放在***机里面熔融，然后再将柱塞或者螺杆推力的作用下进入模具，***后使用冷却来得到制品。聚丙烯PP无非就是在挤出制品、***成型制品、热成型制品中领域***大，在***成型制品当中聚丙烯PP所制品有手提箱、挡泥板、家用电器部件、干燥机通风管、通风管、仪表盘、一次性针筒、洗衣机框架、剪草机等日用家具和消费品等，目前聚丙烯PP在家电行业中占据非常不错的应用成绩，在***各地上，中国已经成为在***世界当中家用电器的***生产中心，而且在中国还有着许多生产企业。现在我国的家电技术发展已经更为突出，产品的品种也越来越多样化，我国的传统家电从小型化到大型化这两个方向***发展，随着时间的流逝新产品不断的降临到家家户户以及市场当中。我们回到前面部分，聚丙烯PP在挤出制品当中能制作聚丙烯薄膜也能制作出聚丙烯纤维这两种物质，其中聚丙烯纤维它可以纺丝制成纤维也可以叫做丙纶，这样就能额外的用于到服装和家具市场上。另外这两种物质又能给聚丙烯PP又添加了新的改善，它的透明度和强度得到大幅度提高。聚丙烯PP也能可以用作一次性容器，比如饮水杯、热罐装饮料瓶等。PolypropylenePPhasotherclassification,homopolymerPP,randomPPandblockcopolymerizedPP,whicharedividedintothreecategories.EachkindofpolypropylenePPhasdifferentpropertiesanddifferentapplicati***.ThereasonwhytheimpactpropertyofPPisnotsogoodisthatitscrystallinityistoohigh,butitsmolecularchainregularityisstillveryhigh.InordertoimprovethetoughnessofPP,theblendingofPEandEPDMwasused.Generallyspeaking,PPispoorinimpactresistance,dimensionalstability,toughness,agingandthermalstabilityinthelongterm.Atpresent,homopolymerPPcanonlybeusedinpackagingpaperfilm,folder,brush,packingbelt,householdproducts,wovenbags,blowbottles,etc.Duetothelackofmaterialimpact,hydrostaticpressureresistance,processingandheatandoxygenaging,therandomadditionofethylenereducesthecrystallinityandmeltingpointoftherandomcopolymerizedpolypropylene.Themorerandomthedistributionofethylenemonomerinthepropylenemolecularchain,themoresignificanttheperformanceofthepolypropylenewillchange.Fromthecomprehensiveviewofrandomcopolymerizedpolypropylene,itsrigidity,strengthanddimensionalstabilityaregood,especiallyitslow-temperaturetoughness,transparency,glossinessandheatresistancearegood.Atpresent,randomcopolymerizedpolypropylenecanbeusedinmanyfields,suchaspackagingpaperfilm,dropbottlesinhospitals,disposablesyringes,householdproductsinfurnituremarketandpipesinbuildingmaterials.Blockcopolymerizedpolypropyleneisakindofimpactresistantpolypropylene.Itsrigidityisverygood,soitimprovesitsimpactstrength.Originally,blockcopolymerizedpolypropylenehasbetterimpactstrength,butitsrigidityalsoimprovesitsimpactstrength.However,blockcopolymerizedpolypropyleneisverypooringlossinessandtransparency,soitcanonlybeusedinsportsequipment,luggage,batteryboxandbabycarriage.Fromthesethreedifferentkindsofpolypropylene,wecanseethatthestrengthofhomopolypropyleneisbetter,whichissuitableforelectricalappliances,householdproductsandpackagingpaperfilm.Theoverallcomprehensiveperformanceofrandomcopolymerizedpolypropyleneisgood,whichissuitableforpackaging,medicaltreatmentandhouseholduse.Theblockcopolymerizedpolypropyleneisrigid,hasgoodimpactstrength,andissuitableforhouseholdproductsandelectronic***allproducts.Thesethreedifferentkindsofpolypropylenearesuitableforhouseholdproductsandelectronic***allproductsPolypropylenehasitsownmerits.Itisemphasizedthatthestrengthofcopolymertypeishigherthanthatofhomopolymertype!However,duetocrystallization,theshrinkageofPPisquitehigh.Withthedevelopmentofscienceandtechnology,therearemanywaystoproducepolypropylenePP.PolypropylenePPwasborninItalyin1954.Itwassuccessfullyproducedbypolymerizationofpropyleneasrawmaterial.Atthattime,thebirthofpolypropylenePPestablishedthetheoryofdirectionalpolymerization.Accordingtotheresearchresultsin1957,theworld'sfirstsetof6000t/abatchpolypropyleneindustrialproductionequipment.PolypropylenePPcanbedividedintoslurrymethod,gas-phasemethodandliquid-phasebulkmethod.Slurrymethodispolymerized,whichistheearliestgenerationbefore,anditsspecificisdiluentpolymerization.Gasphasepolymerizationiscarriedoutundercertainconditi***.Gasphasepolymerizationissuperiortoslurryandliquidphasebulkpolymerization.Atpresent,gasphasepolymerizationisdevelopingrapidly.Atpresent,thedevelopmentandapplicationofpolypropylenePParemoreandmoreextensive.Manybuildingmaterialsinourlivesh***epolypropylenePPaccompanied.PolypropylenePPhasgoodperformanceandwideapplication,butitisoneoftheoptionalplastics.Itsmechanicalpropertiesandchemicalpropertiesplayanexcellentquality,butsomepropertiesarestillslightlyinadequate.TherearemanymoldingmethodsonthemoldingperformanceofpolypropylenePP,familiarwithblowmolding,injectionmolding,extrusion,coating,machining,rotarymolding,solutionwelding,foaming,electroplating,vacuumthermoforming,etc.,whichcanbesprayedonthemetalsurface.Generally,themeltmassflowrateofpolypropylenePPforinjectionis3-4.5g/10min,someofwhichcanreach20g/10min,anditsmoistureabsorptionis***all,only0.01%.Therefore,itisonlynecessarytopreheatthematerialinthegeneralblastovenat80-100℃beforemolding.AspolypropylenePPwilldecomposeandcarbonizewhencontactingwithmetalwallforalongtime,weneedtopayattentionnottouseittostayinthebarrelforalongtime.Inordertofacilitateplasticization,itisbettertolengthentheshuntingshuttle.Iftheinjectioncycleistobeshortened,theinjectiontemperaturecanbeincreasedappropriatelytotheextentthatseriousdegradationdoesnotoccur.Itisveryimportanttochoosethepropertemperatureininjectionmolding,becausePPmoleculesarepronetoorientation,whichwillproducestrainandreduceimpactstrength,andorientationphenomenonismostlikelytooccurinlowtemperatureandhighpressureinjection,sothetemperaturecannotbetoolow.Themoldtemperatureshouldbeabout80℃,notlessthan50℃,otherwise,thesurfaceglossofthemoldedproductsispoor,ortherearedefectssuchasmeltingmarks,etc.,buttoohighmoldtemperaturewillcausewarpageoftheproducts.ThesecondprocessingperformanceofpolypropylenePPisparticularlygood.Itsprintingperformanceisbetterthanthatofpolyethylene.Photographicconvexplate,rubberplate,flatconc***eplateandotherprintingmethodscanbeused.Inordertoobtainbetterheatresistance,oilresistance,waterresistanceandotherrequirements,itmustbeprintedaftercoronadischargetreatment.)