酚醛环氧树脂固化动力学研究

:2006-11-21:(1955-),,,.:.32006.204()Vol.20No.4200612JournalofNanhuaUniversity(ScienceandTechnology)Dec.2006:1673-0062(2006)04-0108-03,3(,421001):,,(TG)(DSC),,n=0.87E=49.18kJ/mol;,(170,120).:;;;:O633.13;O313:ACuringKineticsofEpoxy/Phenol-FormaldehydeResinLIUZhi2fang,WUZhi2xian3(SchoolofChemistryandChemicalEngineering,NanhuaUniversity,Hengyang,Hunan421001,China)Abstract:Phenol-formaldehyderesinwassynthesizedatfirst,andEpoxy/Phenol-formaldehyderesinwasconfectedbyphenol-formaldehyderesinandtheepoxyresin.ThenthekineticsinvestigationwascarriedoutforthecuringreactionbyusingtheTGandtheDSCanalysismethods.Thekineticsparameterofthesystemwasobtained:thereac2tionseries(n=0.87),theactivateenergy(E=49.18kJ/mol).Thepoly-condensationreactioninthecuringreactionwasvalidatedandtheprocessingparametersweregiven(thetemperatureofcuringreactionis170,thebake-outperiodis120).Keywords:epoxy/phenol-formaldehyderesin;thermalanalysis;curingreaction;ki2netics,[1].,.,,©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1):,96,.,,,40.(2):E-4,4501:1.1.3STA409,N2,50300,.22.1TG/DSC=2K/min,=5K/min,=10K/min,=20K/minTG/DSC14.2.2DSC1.1TG-DSC(=2K/min,[1]-TG;[2]-DSC)Fig.1CurveofTG-DSC(=2K/min,[1]-TG;[2]-DSC)(1)Kissinger[2],d[ln(/T2p)]d(1/Tp)=-ER(1)ln(/T2p)1Tp103,:Y=-5.9153X+3.2829(R2=0.97):Y=ln(/T2p),X=1Tp103k=-5.9153KissingerE=49.18kJ/mol.(2)Crane[2]:dlnd(1/Tp)=-EnR+2Tp(2)2TG-DSC(=5K/min,[1]-TG;[2]-DSC)Fig.2CurveofTG-DSC(=5K/min,[1]-TG;[2]-DSC)3TG-DSC(=10K/min,[1]-TG;[2]-DSC)Fig.3CurveofTG-DSC(=10K/min,[1]-TG;[2]-DSC)901204:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(Kmin-1)Tp/()Tp/K()1/Tp103lnln(/T2p)2136.4409.42.4440.693-11.3295152.6425.62.3511.609-10.49710172.9445.92.2522.303-9.88920201.1474.12.1112.996-9.3264TG-DSC(=20K/min,[1]-TG;[2]-DSC)Fig.4CurveofTG-DSC(=20K/min,[1]-TG;[2]-DSC)E/nR2Tp,2Tp,ln1Tp:Y=-6.8142X+17.501(R2=0.97):Y=ln,X=1Tp103k=-6.8142Crane,n=0.87..2.3.2TG/DSC:120DSC,TG3.56%,.120TG2.41%,,.2.4[3]:.14TG/DSC:1)120,DSC,TG.120,120;.2),TG/DSC,,.110K/min,,.3(=10K/min)TG/DSC,170,.31),E=49.18kJ/mol,n=0.87.2).3)120.4)170.:[1]MayAClayton,TanakaYoshio.EpoxyResinsChemistryTechnology[M].NewYork;MarcelDekkerinc,1973.[2].DSC[J].,1998(1):3334.[3].[M].:,1974.011()200612©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.