碳纤维增强树脂基复合材料中的碳纤维与树脂之间界面改.pdf

MaterialsandDesign31(2010)1613–1616

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MaterialsandDesign

journalhomepage:www.elsevier.com/locate/matdes

ShortCommunication
Interfacepropertiesofcarbonfiber/epoxyresincompositeimproved
bysupercriticalwaterandoxygeninsupercriticalwater

YongpingBaia,ZhiWangb,*,LiqunFenga

aSchoolofChemicalEngineeringandTechnology,HarbinInstituteofTechnology,Harbin150001,China
bCenterforCompositeMaterials,HarbinInstituteofTechnology,Harbin150001,China

articleinfoabstract

Articlehistory:Theinterfacepropertiesbetweenthecarbonfibersandepoxyresinwereimprovedbythesupercritical
Received20June2009waterandoxygeninsupercriticalwaterbecausethesurfaceroughnessandthefunctionalgroupscon-
Accepted2September2009tainingoxygenwereincreasedobviouslycomparedwiththatofuntreatedcarbonfibers.Thiswasfavor-
Availableonline6September2009
abletoimprovementoftheadhesivestrengthbetweenthecarbonfibersandtheresin.ThemaximalIFSS
ofthecarbonfiber/epoxyresincompositetreatedbythesupercriticalwaterandtheoxygeninsupercrit-
icalwaterwere58.3and92.8MPa,respectively,whichincreasedbyapproximately10%and75%for
52.9MPaoftheuntreatedcarbonfiber/epoxyresincomposite.
Ó2009ElsevierLtd.Allrightsreserved.

1.Introductionappliedtotheprocessofdecompositionofstabletoxicorganic
wastesbecausethesupercriticalwaterhasahighsolubilityfor
Carbonfibershaveauniquecombinationofoutstandingbothorganiccompound,andoxygenandwatercanformasingle
mechanical,physicalandchemicalproperties,suchashighandhomogeneousphase,whichallowsoxidationtoproceedrap-
strength,highmodulusandthermalresistance[1].Thecarbonfi-idlybyaneliminationofthepotentialinterfacemasstransport
bersreinforcedresinmatrixcompositeshavebeenusedinaircraftlimitations[9–12].Nevertheless,uptodate,thereareonlyafew
andspacestructures[2,3].Theperformanceofthesecompositespapersdevotedtotheinvestigationofthesupercriticalwatertreat-
stronglydependsonthequalityofthefiber–matrixinterface,mentofthecarbonfibersurface,sincesupercriticalwateroxida-
whichdeterminesthewayloadsc