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©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,,210009)(BaTiO3SrTiO3TiO2)(),,,,BaTiO3,,,,[15],,,,,11.1,,,,,E[6]:lnE=V1lnE1+V2lnE2E1E2;V1V2E1V1;E2V2,V1+V2=1,:lnE=V1(lnE1-lnE2)+lnE21.22,,X:1994-12-26©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:lnE=V1(lnEa-lnE2)+lnE2V1,E21.3,CE:E=14.4CõDöD2C(PF);D(cm);D(cm)GQ70CtgD:C=$C=ûC1-C2û,tgD=($QõC1)ö(Q1õQ2õ$C1)C1C2;Q1Q2,$Q=Q1-Q22(BaTiO3),0.5Lm,5.66göcm3,E20=800(SrTiO3),0.05Lm,5.116göcm3,E20=300;(TiO2),0.1Lm,4.1göcm3,E20=40,(CPE)(PS)32.1,200,2.22.2.1:,,,,,,,,2.2.2:,,,,,,,,,,2.2.3:,,,,,,,,,,,,2.3CD18()GQ70()PU29512(871996©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(VSrTiO3))33.13.1.1:,,Fig.1,,,V=0E(V=0)=3.9E(V=0)=2.55,V=100%E(V=100%)=211EV=100%)=300,,,,,[7],,,,,V=0Tab.1DielectricpropertiesofcompositeofSrTiO3andpolystyreneaftertreat-mentofacrylicacidMethodofpreparationVol.EtgDSrTiO3+polystyrene13.6%7.376E-3SrTiO3treatedbyAAandPS13.7%8.2513E-33.1.2:,,,,Tab.1,,,,,,,Tab.2DielectricpropertiesofcompositeofSrTiO3andchlorinatedpolyethyleneMethodofpreparationVol.EtgDSrTiO3treatedbyAAandPS13.7%8.2513E-3SrTiO3+CPE11.6%23.97591E-33.1.3:,,Tab.2,,,,,[7],,,,,,975:2©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(VBaTiO3)bysolutionpolymerization3.23.2.1:25,1000Hz,Fig.2,,,,,EatgD,,10-4,,10-2[6],,,,,,,Tab.3EffectofpreparationondielectricpropertiesMethodofpreparationVol.ofceramic103HzEtgD5104HzEtgDSoln.blend30.3%42.610.33521.770.569Soln.polym.31.2%35.10.04421.980.0053Soln.polym.treatedbyAA39.5%47.10.03337.720.00713.2.2:3Tab.3Tab.3,,,,,,,,,103Hz,,,5104Hz,,,,,,,,,,[8],-CO-,,,,,3.2.33EtgDf:40140kHz3Fig.3,(f50kHz),f,,,,081996©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:solutionblend;:solutionpolymerizationtreatedbyAA.Fig.4RelationofdielectricpropertiesofTiO2-PScom-positetothevolumefractionofTiO2(VTiO2)3.33.3.1:,Fig.4ö.,,V=100%,3,,,Ti+4O-2,[8],,,,Ti+4O-2,,,,,Tab.4ComparisonofcompositesofTiO2andpolymerPolymerVol.EtgDTiO2+styrenesol.polym.9.20%4.5823E-3TiO2+CPE8.35%10.17113E-33.3.2:,,Tab.4,EtgD185:2©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[2,4,5]2,2,,Fig.5Schemeof3-phasemodelA:ceramicphase;B:polymerphase.(Fig.5),Ei,Vi,,:lnE=VclnEc+VilnEi+VplnEpE;EcEiEp;VcViVp(),D,,:Vc+Vi+Vp=1Vi=[Vcö(4ö3)PR3](4PR2D)=3DöRlnE=Vc[lnEc-1+(3DöR)(lnEi-lnEp)]+lnEp,Ei,lnE=kõVc+Ck,1(LeiDeming).(J.ofInorganicMaterials),1987,2(3):2192DasguptaDK,DoughtyK.ThinSolidFilms,1988,(158):931053.,1988,23(8):1334.,1986,37(11)5Furukawa,T,etal.J.Appl.Phys.1979,50(7):49046(LiBiaorong),.(InorganicDielectricMaterials).(ShanghaiSciencePress),19867(HuananGongxueyuan).(PhysicalPropertiesofCeramicMaterials).(JianzhuGongyePress)8(ChengJidan).(PhysicsofDielectric),(MechanicalEngeeringPress),1982STUDYONHIGHDIELECTRICCOMPOSITESOFPOLYMER-CERAMICWangTingwei,ChenYifan(NanjingUniversityofChemicalTechnology,Nanjing)ABSTRACTThedielectricpropertiesofpolymer2ceramicwerestudiedbyvariousmethod.There2sultsindicatedthatthedielectricconstantofcompositeschangeswiththevolumefractionofceramicinlinearrelationandmixingeffectofsolutionpolymerizationisbetterthanthesim2pleblend.Thecomparisonforceramicmaterialsshowedcompositesofsurfacetreatedbari2umtitanateandpolystyrenehavethelowerdielectriclossandhigherdielectricconstantathighfrequency.Keywordsceramic,composite,dielectricproperty281996