低粘度中温固化环氧树脂体系的基本性能

FRP/CM20081No14,,(,102101):RTM,A,,,,:;;;(Tg):TP39119:A:100320999(2008)04-0016-03:2007211225:(19822),,,[1,2],[3][4],RTM[57]A,,,,,1111,A,0.56,1300mPas(25);,A,,59,60mPas(25);EDV2,BROOKFIELD;CS10122A,;IN2STRON21121,INSTRON;DMA2980,TA112(1),10min,30min,,8015h,DMA,60104mm,,,(2),,40%8015h113(1),,600ml(2)GB,()(3)(Tg)30150,3/min,1Hz22111,,6120087©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(Tg)Tg(DTA)(DSC)[8](DMA)(TMA)DMA,Tg,Tg,Tg,,,,tanTg[9],2,,Tg76;,Tg922DMAFig.2DMAcurveofcuredresin2142E,,,,2Table2GeneralpropertiesofFRPsheetmadeofself2maderesinandGF/MPa840/GPa36.5/%2.4/MPa952/GPa25.9/MPa417/MPa40.62153,Tg80,7120084©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)2.5h,,;(2),70.3MPa,104MPa,5.7%,2.7GPa,3.1GPa,,,;(3),,Tg76,Tg92;(4),,;(5),[1],,.[J].,2007,28(4):729.[2],,.[J]./,2003(1):48250.[3].[J].,2006,5(12):55259.[4],.[J].,2006,3(9):48254.[5],,.RTM[J]./,2002(3):38240.[6]ScottWBeckwith,CraigRHyland.ResinTransferMolding:Adec2adeoftechnologyadvance[J].SAMPEJournal,1998(6):3223.[7]CDRudd,ACLong,KNKendalletal.Liquidmoldingtechnolo2gies[M].LondoonWoodheadPublishingLtd,1997:23229.[8],,.[J].,2002(4):25226.[9].[M].:,2002:34235.THEBASICPROPERTIESOFLOWVISCOSITYEPOXYRESINCUREDATMEDIUMTEMPERATURELVJin2yan,WANGLei,CHAIHong2mei(BeijingCompositeMaterialsCo.,Ltd.,Beijing102101,China)Abstract:AlowviscosityepoxyresinshouldbeusedinRTM,castingandfilling.ThesystemispreparedbymodifyingBisphenolAepoxy.Theviscosity,mechanicalpropertiesaswellasthermalstabilityarecharacterized,whichshowthatthepreparedepoxyhaslongpotlifeatnormaltemperature.Aftercuredatmediumtemperature,themechanicalpropertiesandthermalstabilityaregood.Keywords:lowviscosity;epoxyresin;mechanicalproperties;glasstransitiontemperature(Tg)8120087©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.