PE原料及PE管道发展现状及趋势

GustaafSUYSTotalPetroch.ResearchFeluy(formerlyATOFINA)WHERE,WHEN,WHY…andWHICHHDPEforPIPESCHINANATIONALSTANDARDSSeminarBeijing,26-27June2005GustaafSUYSTotalPetroch.ResearchFeluyGOLDENJUBILEE50YearsHDPEGustaafSUYSTotalPetroch.ResearchFeluySOMEAPPLICATIONSCableBlowMoldingFilm,Sheet,ProfileRotomoldingGustaafSUYSTotalPetroch.ResearchFeluyPIPEandFITTINGAPPLICATIONGustaafSUYSTotalPetroch.ResearchFeluyMANUFACTURINGETHYLENEPOLYETHYLENE-[CH2–CH2]n-nCH2=CH2CATALYSTCOMONOMERGustaafSUYSTotalPetroch.ResearchFeluyGustaafSUYSTotalPetroch.ResearchFeluyCOMONOMERSYSTEMS\C/C\C/C\C/C\C/C\C/C\\C/C\C/CC\/C–C/C\C/C\C/C\\C/CC\/CC-C//CC-C\/C–C/C\C/C\C/C\\C/C\CC//CC-C\/C-C/C\C/C\C/C\HomopolymerButeneCopolymerHexeneCopolymerOcteneCopolymerGustaafSUYSTotalPetroch.ResearchFeluyGustaafSUYSTotalPetroch.ResearchFeluyCRYSTALLINITYAmorphousstructure,e.g.PVC,ABS,…Semi-crystallinestructure,e.g.PE,PP,PA,PC,…GustaafSUYSTotalPetroch.ResearchFeluyGustaafSUYSTotalPetroch.ResearchFeluyCRYSTALLISATIONPRINCIPLEThecomonomerbranchesdisturbthecrystallisation.HexenehasamuchhigherefficiencythanbuteneGustaafSUYSTotalPetroch.ResearchFeluyGustaafSUYSTotalPetroch.RhFlGustaafSUYSTotalPetroch.ResearchFeluyDUCTILEFAILUREMECHANISMRe:ArnoldLUSTIGER121Failurebybreak:tensiletestfailureFailurebysplitting:pressuretesting2GustaafSUYSTotalPetroch.ResearchFeluyBRITTLEFAILUREMECHANISMRe:ArnoldLUSTIGER11IntercrystallinefailurebySCGGustaafSUYSTotalPetroch.ResearchFeluyMWD:MONOMODALComonomerThehighestcontentofcomonomerisinthelowestmolecularweightportion,whichisnottheoptimalconditionforhighstrengthmaterialGustaafSUYSTotalPetroch.ResearchFeluyGustaafSUYSTotalPetroch.ResearchFeluyMWD:BIMODALMWDAMWDBMWDABComonomerinBComonomerinABAsonlyportionBiscopolymer,itwillleadtohighcomonomerbranchinginthehighmolecularweightpartofABGustaafSUYSTotalPetroch.ResearchFeluyGustaafSUYSTotalPetroch.ResearchFeluyHDPEPIPESINEUROPEAlthoughtheEuropeanHDPEpipemarketstartedover40years,andcanbeconsideredasamaturemarketto-day,thereisstillaverysubstantialgrowthexpectedinthecomingyears020040060080010001200140016001980198519901995200020052010kTONGustaafSUYSTotalPetroch.ResearchFeluyGustaafSUYSTotalPetroch.ResearchFeluyPE100vs.PE80marketPE/PE100PipesmarketEuropebyProductClass010020030040050060070080019961997199819992000200120022003KMTPE80PE100PE80/PE100PipesmarketEuropebyProductClass010020030040050060070080019961997199819992000200120022003KMTPE80WEPE80EEPE100WEPE100EEInWestEurope,wheremostPE100issold,thePE80marketisexpectedtoshrinkat3%peryear.PE100,whichgrowsat15%-20%peryear,takestheentiregrowthofthePEpipesmarket.GustaafSUYSTotalPetroch.ResearchFeluyHDPEPIPESINTHEUS-CANADADecreasingshareforPEpipesPossiblereasons:-Lowerperformancerating-MOPforPE3408andPE2406lowerthanPE80-NoPE100typeyet-Discriminatingdesign-Gas,waterandsewageisonly20%(inEuropeabout70%)-PVCquitepopularGustaafSUYSTotalPetroch.ResearchFeluyTIMEDEPENDENTPROPERTIESPEisavisco-elasticmaterial:mostpropertiesaretimedependent•LONGTERM:-STRENGTH:resistancetointernalpressure(MRS)-STIFFNESS:resistancetodeformationbytopload-FLEXIBILITY:stressreleasebylimiteddeformation•SHORTTERM:-TOUGHNESS:impactandrapidcrackpropagationresistance(RCP)-FLEXIBILITY:easeofcoiling,handlingandinstalling•SHORTandLONGTERM:-STRESSCRACKINGRESISTANCE:-environmental(ESCR)-mechanical(MSCR)GustaafSUYSTotalPetroch.ResearchFeluyGustaafSUYSTotalPetroch.ResearchFeluyINTERNALPRESSURERESISTANCELONGTERMPERFORMANCEGustaafSUYSTotalPetroch.ResearchFeluyINTERNALPRESSURETESTINGMETHOD:EN921ISO1167Referencepipe:32x3mmTemperature:20,40,60,80°CPressure:f.(failuretimes)Failuretimes:10-9000hData:minimum30/temperatureExtrapolation:ISO9080GustaafSUYSTotalPetroch.ResearchFeluyFAILUREMODESDUCTILEFAILURE:-largedeformation-“fishmouth”failure-mechanicaloverloadingofthetestpieceBRITTLEFAILURE:-nodeformation-“slit”failure-resultoffatigueGustaafSUYSTotalPetroch.ResearchFeluySTRESS-TIMEFAILURECURVEDUCTILEFAILUREMODEFAILUREDATABRITTLEFAILUREMODE97.5%lclCURVEAVERAGECURVEKNEE-POINTσ1σ2σ3............σxLogHOOPSTRESS(MPa)LogFAILURETIME(h)DUCTILEfailureline:measureformaximumstressloadingBRITTLEfailureline:measureforexpectedservicelifeGustaafSUYSTotalPetroch.ResearchFeluyEXTRAPOLATIONPRINCIPLELogFAILURETIME(h)LogHOOPSTRESS(MPa)20°C40°C60°C80°C~100~50~6Re:ISOEN50yGustaafSUYSTotalPetroch.ResearchFeluyPE80ClassMD–HDMinimumrequirements–TypicalperformanceENISOHDMDHDMD4.5NPT4.08.09.010.0100W165G500100050y100yFailuretime(h)Hoopstress(MPa)PE63PE80PE10020°C80°CGustaafSUYSTotalPetroch.ResearchFeluyPE100ClassMinimumrequirements-Typicalperformance50y20°C40°C60°C80°C12.45.45.0NPT4.6G500W165Hoopstress(MPa)Failuretime(h)Somealreadybrittlefailure100Y10.01001000PE125(PE112)PE100PE80PE63GustaafSUYSTotalPetroch.ResearchFeluyRESISTANCETOSLOWCRACKGROWTH-SCGGustaafSUYSTotalPetroch.ResearchFeluyPOSSIBLESURFACEDEFECTSUnduecareduringtransporting,handlingandinstallingmayleadtoscratchingandnotchingtheoutsidepipesurfaceSqueeze-offtostoptheflowmayleavehaircracksattheedgesontheinsidepipesurfaceGustaafSUYSTotalPetroch.ResearchFeluyNOTCHESBYTHESYSTEMBeadro