38520105CHINAPLASTICSINDUSTRY*(040A02),(P1502)**wangxia@ussteducn:,,1981,,,liying516@126com螺杆组合对PP改性的SEBS弹性体结构与性能的影响*1,1,**,1,2(1.,200093;2.,200235):,-/-(SEBS)/(PP):,,,SEBS/PP,SEBSPP:;;;-/-;:TQ32066+3:B:1005-5770(2010)05-0023-04EffectofScrewCombinationonStructureandPropertiesofPPModifiedSEBSElastomerLIYing1,WANGXia1,FUWen1,ZHENGKang-sheng2(1.CollegeofMaterialScienceandEngineering,ShanghaiSc.iandEngineeringUniversity,Shanghai200093,China;2.DepartmentofMaterialScienceandEngineering,ShanghaiAppliedScienceCollege,Shanghai200235,China)Abstract:Thispaperstudiedtheeffectonthemechanicalpropertiesandmicro-morphologicalstructureofthestyrene-ethylene-butylene-styreneblockcopolymer/polypropylene(SEBS/PP)causedbyreversescrewelementandthemixingrotorthroughdesignofscrewcombination.Throughthedesignofthescrewcombina-tion,theresultsshowedthatthetensilepropertiesandthereboundperformanceoftheelasticmaterialSEBS/PPwereimprovedobviouslywhenthekneadingblockswasincreasedandthemixingrotorwasintroducedintothetwinscrewcombination.TheeffectofthemixingrotoronthehomogenizingblendSEBSwithPPwasprovedbythecharacterizationofthestructureandthemechanicalproperties.Keywords:TwinScrewExtruder;ScrewAssemble;PP;SEBS;MechanicalProperties,[1],,[2-6]-/-(SEBS),,SEBS,;,-60,SEBS,100%;,;,,;,SEBS,SEBS,,SEBS,(PP),PPSEBS232010,SEBS/PP,,SEBSPPSEBS111SEBS:3151,;PP:S700,;:46#,;1010:ANOX20,;SEBSPP1010803~4h,SEBS/PPSEBS//PP/=100/120/110/053()12SEBS/PPSEBSSEBS,10min,24h,PP(SHR-10A,),10minTE-35()SEBS/PP(1),FT-80()13(SUN500,ItalyGALD-ABLNI),GB/T5281998GB/T5291999(DMA242C,NETZSCH)DMA:,,,,=(/)100%(1)JSN-6360(SEM),SEBSSEM[7]2:,;,,;,;,,,,,,21SEBS/PP,SEBS,,;PPSEBS,,,,SEBS/PP,,a-b-1Fig1Thepictureofthemixingrotor,SEBS/PP,,(12)1/32/324385:PPSEBS,:(1),,(2),,(3)SEBSPP,22SEBS/PP221SEBS/PP3SEBS/PP3,1#,2#,3#,4#0#,,,3,2#1#3#4#1#3#4#,2#,3,SEBSPP,,,SEBS,SEBS/PP,,,4#1#,2#,3#,4#1#6030,2,,,,,,,4#SEBS/PP3,1#,2#,3#,222SEBS/PP,,,,,DMASEBS/PP,44,SEBS/PP3,4#,1#3#0#2#23SEBS/PP,;,,,,,SEBS252010PP,,,PP2,SEBS/PP2,SEBS/PPSEBS;PP2a,PP,PPSEBS,;2bPPSEBS,2SEBS/PP,4#0#a-0#b-4#2Fig2Thepolarizedopticalmicroscopyforthedifferentcombinationa-3#b-4#3SEBS/PPSEMFig3SEMofelasticmaterialSEBS/PPforthedifferentcombination3SEBS/PPSEMSEBS,PP3a,PP,,PP;3b,,4#PPSEBS,4#,(34)31),SEBS/PP,,T-352)SEBS/PP3),,SEBSPP4),,SEBSPP5)SEBS/PP,SEBS[1].[M].:,2003.[2]WHITEJL,KIMB,BAWISKARS,eta.lDevelopmentofaglobalcomputersoftwareformodularsel-fwipingcorotatingtwinscrewextruders[J].PolymPlastTechnolEng,2001,40(4):385-405.[3],,.[J].,2001(12):4-7.[4],,.(+)[J].,2001,15(7):66-70.[5],.[J].,2000(3):75-82.[6],,.[J].,2001(6):73-77.[7]VEENSTRAH,VERKOOIJENPCJ,vanLENTBJJ,eta.lOnthemechanicalpropertiesofco-continuouspolymerblends:experimentalandmodelling[J].Polymer,2000,41(5):1817-1826.(2010-02-02)(14)[4]PRITCHARDG.Twotechnologiesmerge:woodplasticcom-posites[J].PlastAdditComp,2004,6(4):18.[5].[M].:,2004.(2010-01-20)26