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X,,X(,610065):(PTC),:;PTC;;:TQ32418:A:1005-5770(2008)07-0006-05ProgressofPolymer2basedSelf2regulatingHeatingCompositeZHANGYi2chuan,DAIKun,LIZhong2ming(CollegeofPolymerSci.andEng.OfSichuanUniversity,StateKeyLab.ofPolymerMaterialsEng.,Chengdu610065,China)Abstract:Themechanismofself2regulatingheatingcompositeanditscharacteristicparameters,suchasthepositivetemperaturecoefficient(PTC)intensity,theself2regulatingcoefficientandsoon,areintroducedbriefly,andthefactorsinfluencingtheperformanceandtheapplicationofthecompositearesummarized.Keywords:Self2regulatingHeatingMaterials;PositiveTemperatureCoefficientEffect;CarbonBlack;Polymer,,[1],,,10,,,PTC,,(),,,,(),[2],(CB),PTC,[3]1[4-6]PTC(,PTC)PTCNTCmax0,:=1gmax/0(1),PTC,,6CHINAPLASTICSINDUSTRY36720087Xzmli@2631net1cn:,,,1969,,,90,11Fig1Relationshipbetweenpowerandtemperaturearoundservicetemperature,,;,,,,,,EnicksonJoseph[7],:P=C0+C1(Tm-Ta)(2)C1016W/K1,,W/(mK)=(P1-P2)/(t2-t1)(3),P1t1,W/m;P2t2,W/m,2,,PTC,,NTC,,,,NTC,211CB,CBCBCB,,,,PTC[8](DBP)CB,DBP,,;,,;CB,,[9]CB,CB,,,CB,NTC[10]CB,CB,CB,PTC,NTC,[11]CB:,,,[12]CB,PTCAdib[13]CB,CB,CBCB,PTC23,,NTCCB,,CB,,NTC,,CB,212PTC,PTC,,PTC[14-17],PTC[18],,,CB,,CB,PTC[11]:7367:;,EVA-;,,[12]CB,PTC21211,NTC,,CB,NTC[19][20](LDPE)/-(EEA)/(EPDM)/CB,NTC,21212,-,[21-23],,(HDPE)/(PP)PP/(PMMA)HDPE/PM2MANTC[24],,NTCNTC[25]HDPE/(PVDF),PVDFCB,,,,PVDFPTC,,NTC,213,,CB,CB21311,,,,PTC[26-27][28]HDPE/CB,HDPE,PTCPTC,21312,,,,,[29]168,,,[30]HDPE/CB,246,115%3%,,21313,,PTC,[31][32],PP(LLDPE),PPLLDPE3,311,,,,,,,(),,[33]82008312,,,,,,,,,[34]313Texas,,[35],-,,[36][37]PTC,,,,[38],,,[39]4,,,[1].[J].,2003(3):12-17.[2].[J].,1996,13(3):53-57.[3],,.PTC[J].,1996,12(3):6-11.[4],,.[J].,1995,(z1):38-41.[5],,,.PTC[J].,1996,14(3):175-181.[6].PTC[J].,2001(6):13-16.[7]LardearJL.Controlofself2regulatingheatingcableforuseinpipelineheatingapplications[C]//24McMillanWayNewark.DE:Val2TechInc,1990:105-113.[8].[J].,2000(5):20-22.[9],.[J].,1994,25(6):492-499.[10],,.[J].,2001(2):23-26.[11]TANGHao,CHENXinfang,LUOYunxia.Electricalanddy2namicmechanicalbehaviorofcarbonblackfilledpolymercom2posites[J].EurPolymJ,1996,32(8):963-966.[12],,.PTC[J].,2000,14(7):50-52.[13]ADIBF,KOC,LIUGuojun,etal.Polymergraftedcarbonblackprimarilyforuseinpositivethermalcoefficientover2currentprotectiondevices:US,20030096888[P]12003-05-22.[14],,,.PTC[J].,2000,26(6):621-623.[15].PTC/NTC[D].:,2006.[16]LUOYanling,WANGGengchao,ZHANGBingyu,etal.TheinfluenceofcrystallineandaggregatestructureonPTCcharacter2isticofconductivepolyethylene/carbonblackcomposite[J].EurPolymJ,1998,34(8):1221-1227.[17]MEYERJ.GlasstransitiontemperatureasaguidetoselectionofpolymerssuitableforPTCmaterials[J].PolymEngSci,1973,13(6):462-468.[18],.LDPE/PTC/NTC[J].,1994(5):38-44.[19],,.PTC[J].,1994,16(3):44-48.[20],,,.PE2LD/EEA/EPDM/PTC[J].,2005,19(8):17-20.[21]MEYERJ.Stabilityofpolymercompositesaspositivetempera2turecoefficientresistors[J].PolymEngSci,1974,14(10):10-15.[22],,,.[J].,2002,14(3):69-74.[23]FENGJiyun,CHANChiming.Carbonblack2filledimmiscible9367:blendsofpoly(vinylidenefluoride)andhighdensitypolyethy2lene:Therelationshipbetweenmorphologyandpositiveandneg2ativetemperaturecoefficienteffects[J].PolymEngSci,1999,39(7):1207-1215.[24],,,.PTC[J].,2004,33(4):79-82.[25],,.HDPE/PVDF/CBPTC[J].,2004,32(4):13-15.[26],,,./PTC[J].,1996,9(3):329-336.[27],,,./PTC[J].,2001,34(3):383-385.[28],.HDPE/CB[J].,2004,32(8):23-25.[29],,,.PTC[J].,2002,17(6):15-19.[30].HDPE/CBPTC[D].:,2005.[31],,,./PTC[J].,2000,16(3):101-106.[32],,.PTC[J].,2000,17(4):69-75.[33],,,.PTC[J].,2003,15(6):749-752.[34],,.[J].,1999,27(10):34-36.[35]CURHANJA,PIMENTELDR,BERGPG.FinnedPTCairheaterassemblyforheatinganautomotivepassengercompart2ment:US,5256857[P]11993.[36],,,.[J].,2004,32(12):51-53.[37],,,.[J].,1998(1):136-138.[38].[J].,2000(3):48-51.[39],,.[J].,2005,28(2):20-22.(2008-04-01)(5)[23],.PE100[J].,2006,23(4):24-26.[24],,.[J].,2005,17(1):42-43.[25].[J].,2006,23(2):46.[26],.[J].,2006,23(3):66.[27],.PE80[J].,2007,24(1):18-21.[28],,.PE80[J].,2005,17(5):25-27.[29],,,.[J].,2004,18(3):36-39.[30],,.[J].,1999,9(3):13-16.[31].[J].,2006,23(3):51-54.[32].C180/R180[J].,2002,14(5):27.[33],,.PP2R[J].,2004,33(4):200-201.[34],,.PP2B[C]//.:,2005:137-138.[35],,.[J].,2006,18(6):32-35.[36].[J].,2004,16(2):61-64.[37],.[J].,2005,17(3):51-53.[38].()[J].,2007,37(5):1-8.(2008-03-25),,!012008