pe pp abs（pe、pp、abs）

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1、peppabs（PE、PP、ABS）Polyethylene(PE)ReferredtoasPE,itisathermoplasticresinmadefromethylenepolymerization.Inindustry,italsoincludescopolymersofethylenewithasmallamountofalphaolefins.Polyethyleneisodorless,non-toxic,feellikewax,hasexcellentresistancetolowtempera

2、tureperformance(minimumtemperaturecanreach-70~-100C),goodchemicalstability,erosionresistancetomostacid-base(notresistanttooxidizingacid),insolubleincommonsolventsatroomtemperature,lowwaterabsorption,excellentelectricalinsulationproperties;butpolyethylenefore

3、nvironmentalstress(chemicalandmechanicalfunction)isverysensitive,heatagingresistancedifference.Thepropertiesofpolyethylenevarydependingonthemolecularstructureanddensity.Theproductsofdifferentdensities(0.91~0.96g/cm3)canbeobtainedbydifferentproductionmethods.

4、Polyethylenecanbeusedasageneralthermoplasticformingmethod(seeplasticprocessing).Itiswidelyusedinthemanufactureoffilms,containers,pipes,monofilament,wireandcable,dailynecessities,andcanbeusedashighfrequencyinsulatingmaterialsfortelevision,radarandsoonTypesofp

5、olyethylene(1)LDPE:lowdensitypolyethyleneandhighpressurepolyethylene(2)LLDPE:linearlowdensitypolyethylene(3)MDPE:mediumdensitypolyethyleneandShuangfengresin(4)HDPE:HDPEandLDPE(5)UHMWPE:ultrahighmolecularweightpolyethylene(6)modifiedpolyethylene:CPEandcrossli

6、nkedpolyethylene(PEX)(7):ethylenecopolymerethylenepropylenecopolymer(plastic),EVA,ethylenebutenecopolymer,ethyleneandotherolefins(suchasoctenePOE,cyclicolefincopolymer),ethyleneunsaturatedestercopolymer(EAA,EMAA,EEA,EMA,EMMA,EMAH)PEfeatures:corrosionresistan

7、ce,electricalinsulation(especiallyhigh-frequencyinsulation)canbeexcellent,chlorination,cross-linking,irradiationmodification,useofglassfiberreinforcedpolyethylene.Themeltingpoint,hardnessandrigidity,highstrength,lowwaterabsorption,goodelectricalpropertiesand

8、resistancetoradiation;softness.Highpressurepolyethyleneelongation,impactstrengthandgoodpermeability;ultrahighmolecularweightpolyethylenehighimpactstrength,fatigueresistance,wearresistance,suitab