聚合物基PTC热敏材料的研究

,2002210225,12(5):5862CHINAELASTOMERICS:2002201221:(1966-),,,,,,,3:(20061201)PTC31,2(1.,116034;2.,132021)):PTCPTCPTCPTC:PTC;;:TQ314.2:A:100523174(2002)0520058205PTC(PositiveTemperaturecoefficient),,(1.58),(Tc),[1],,,,PTC,[2],,PTCPTC,(),,,PTC,PTC,,[34]PTCPTCPTCPTC1PTC1948FrydmanPTC,,PTC,PTC[56]1.1kohler[6],,,,,,,,,[7][8]/,,PTCPTC,PTCPTC1.2:,,;,,,,:(Tg),PTCPTC,Tg,PTC1.3PTC,,,;,,,,-,Klason[9],(PSPMMA),PTC(PEPP),PTC,[10]/,PTCPTC,,(),,,,2PTCPTC,PTCPTC,2.1PTCPTC(40%50%),,,PTC,,,,100400;30100(DBP)DBP,,,[11]Klason[12]Narkis[13][14]:,955,.PTC,PTC;,PTC1[11]1(EC)(ACET)(HAF)Sa,(N:)/(m2g-1)92970110CTAB,/(m2g-1)48078105Sg,/(m2g-1)10877111DBP/[mL(100g)-1]350250102/nm304229,PTC(maxRT):,,,:,,(),,,PTC[15]2.2PTCPTC,,PTC,,PTC(HDPELDPEEVA),PTC;(PSPMMA),PTC[16],PTC2.3PTC,PTC2.3.1,,[17]:,,,,,,,,PEPP,(),,,,,,2%,,LDPE[11]2.3.2,:[17]3PTC,PTC,[18],PTC061250,PTC,()(PTC),PTC,,PTC[19]:PTC,8530h/,,,,PTC,,,1405,PTC[20][7]PTC/SBS/SBR[21]:SBS/SBRPTCSBRSBRSBS,,,PTC[14],LLDPE/EVA/,720h7050,30,PTC30104Gy,,705,,,,PTC;,,PTCPTC,,,,[22]:,,,PTC,,PTC,[23]/(1010,168)()(CPE),PTC,,,PTC421PTC,,,PTC,:[1].[M].:,1998,2460.165,.PTC[2]HuybrechtsB,Ishizakik,TakataM.ThePositiveTempera2tureCoefficientofResistivityinBariumTitanate[J].Mater.Sci.,1995,30:2463.[3].[J].,1992,21(5):20.[4]RaychemCorp.CircuitProtectionDevicesComprisingPTCElement[P].:4,1983,413.[5],.[J].,1999,21(3):149.[6],,.[J].,1996,12(2):1.[7],,.--[J].,1990,7(5):97.[8],,.-[J].,1994,(5):109.[9]KlasonC,KubatJ.AnomalousBehaviorofElectricalConduc2tivityandThermalNoiseinCarbonBlack2ContainingPolymersatTgandTm.[J].J.Appl.Polym.Sci.,1975,19(3):831.[10],,.[J].,1998,11(3):5512.[11].[M].:,1991.[12]KlasonC,KubatJ.AnomalousBehaviorofElectricalConduc2tivityandThermalNoiseinCarbonBlack2ContainingPolymersatTgandTm.[J].J.Appl.Polym.Sci.,1975,19(3):831.[13]NarkisM,RamA,SteinZ.ElectricalPropertiesofCarbonBlackFilledCrossLinkedPolyethylenePolymerEng.Sci.[J].1981,21(160):1049.[14],,.LLDPE/EVA/CB[J].,1998,10(6):26.[15]NarkisM,RamA,Flashner.ElectricalPropertiesofCarbonBlackFilledPolyethylene[J].PolymerEng.Sci.,1978,18(8):649.[16],,,.PTC/[J].,2000,(2):47.[17].[J].,2000,14(12):17.[18],,.[J].,1999,27(10):34.[19],,./PTC[J].,1996,9(3):329.[20],,,.PVDF/CBPTC[J].1998,14(5):93.[21],./SBS/[J].,1998,11(1):65.[22]XiaoSuYi,Jianfengzhang,Qiangzheng,etal.IrradiationInfluenceontheResistivityBehaviorofCarbonBlackLoadedPolyethyleneComposites[J].SubmittedtoJ.ofMater,Sci.letters,1998.[23],,,./PTC[J].,2000,14(12):29.StudyonPTCthermistormaterialsofpolymermatrixXIAYing1,LINLi2hua2(1.Dept.ofMater.Sci.Eng.,DalianInst.ofLightInd.,Dalian116034,China;2.Acryloni2trilePlantofJilinChemicalGroupCorporation,Jilin132021,China)Abstract:Inthispaper,themechanism,influencingfactorsandstabilizingwaysofPTCeffectsinthermistormaterialsofpolymermatrixarereviewed.Keywords:PTCeffects;thermistormaterials;composites2612