Interfacial Micromechanics of Carbon Fiber Reinforced Polyphenylene Sulfide Composites，第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）-中国聚合物网,论文下载

Interfacial Micromechanics of Carbon Fiber Reinforced Polyphenylene Sulfide Composites

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polyphenylene sulfide carbon fiber interfacial micromechanics microbond
test

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112K

所属学科：

分子表征

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第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）

简介：

Interfacialmicromechanicalperformanceofcarbonfiberreinforcedpolyphenylenesulfide(PPS)compositeswasstudiedbymicrobondtestwhichhadbeenwellacceptedasthemostimportantmicromechanicaltestforevaluatingtheinterfacialpropertiesbetweenthefiberandmatrix.Anovelhomemadetestapparatuswhichisoperatedsimplywasemployedandadifferentmicrosamplepreparationmethodwasintroduced.ComparativetestsofvariousloadingspeedsweremadetoinvestigatetheinfluenceoftestingratesontheinterfacialshearstrengthofCF/PPSmicro-composite.Itwasfoundthattheinterfacialshearstrengthincreasedwithincreasingthefiberembeddedlengthatthespeedsbelow0.02mm/sandabove0.04mm/s,butituniformlydistributedalongtheinterfaceat0.02and0.04mm/s.Itisrecommendedtoperformthemicrobondtestinthetestraterangeof0.02-0.04mm/s,wheretheinterfacialshearstrengthdoesnotchangewiththeembeddedlengthandnosignificantdeviationsareobserved,thuscouldbetterreflectthetrueinterfacestrengthofthecomposite.Comparisonofinterfacialpropertiesofannealingtreatmentsamplesandatmosphericplasmatreatedcarbonfiber/PPScompositeswerealsoinvestigated.Theresultsshowedthattheapparentinterfacialshearstrength(rapp)valueofmicrodropletsincreasedfrom33.5+4.3MPato43.9+2.3MPaafterannealing.Moreover,plasma-modifiedCFwascharacterizedbyscanningelectronmicroscope(SEM)andX-rayphotoelectronspectroscopy(XPS).Itshowedthatthesurfaceroughnesswasimproved,andtheO/Catomicratiowasincreasedfrom16.2%t028.5%.Thoughhydrogenandcovalentbondingswereinducedatfiber/matrixinterface,therappvaluesofCFfiber/PPScompositesdecreasedt036.4+1.0MPawithatmosphericplasmatreatment,duetotheremoveofthesizelayercoatedonthesurfaceofCF.

作者：

B. Y. Liu, X. J. Wang , S. R. Long, J. Yang

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2013-07-02 13:52:50

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