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PTFE及纳米粒子改性环氧树脂基聚酯织物增强复合材料的.pdf

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万方数据 ModifiedandTribologicalPropertiesofPTFENanoparticlesEpoxyBasedPolyesterFabricCompositesmaterials．Woven，braidedTensileMaterialsMaterials，Shanghaicompositesfillers(nanoparticlesusi矗gblockepoxy／polyester1Introductionmajorfabric)7SUNLan—huil，YANGZhen—gu01，LIXiao—hui2(1DepartmentScience，FudanUniversity，Shanghai200433，China；2ShanghaiResearchInstitute200437，China)Abstract：FourfabricwerepreparedinorderstudytheinfluencePTFE)ontensiletribologicalproperties(bothon-axisoff-axisdirections)ofpolyestercomposites．Tensilefracturemechanismwasdiscussedbasedstress—strainfractographs．TribologicalconductedAmslerfrictionwearon—ringarrangement．Itobservedthatitplayedmainroletensile-resistantwear-resistantpropertiescomposites，butfillersaddedmatrixmoreimportantrole．Theimprovementattributedfiber-matrixadhesion．Andexcellentperformanceimprovedcomposites．Thebehaviorsdirectionsquitedifferentfromthosedirections．Keywords：fabrics；nanocomposites；tensileproperties；tribologicalproperteisID：1001—4381(2008：)Suppl-0117—10Theorderingtightnessfabricsmuchhigherthanfibers．Thushaveoutstandingspecificstrength，load—carryingcapacitywear-resistancecomparedfi—ber—reinforcedcomposites．Theyincreasinglyusedaerospace．automotive，navalotherin—dustries．Thedepend(woven，braidedknitted)andweavestyle(plain，twillsatin)inadditionfiberknit—tedthreefabrics，inwhichwovenmostcommonlyruralapplications．Thereinforcingpol—ymericsuchdiffersinorganicglassbonfabrics．Thelatter[1—3]havebeenwidelydis。cussedwhilewellstudied．Themacromolecularchainsbothstiffbenzeneringsflexibleali-phaticsegments．Thushashighstiffnessmodulusgoodprocessability．Therelotcomposites[4一引．Inparticulardirections(warpweft)andofpaxisattractedsignificantattentionyears：7一引．Althoughstructuraldesignability，stabilitywarpweftcoefficient，theirtieshighlyanisotropic．Theoff-axis．fab—ricdrawnattentionstheseyears．Rattanhisgroup[10--lZ]reportedfabrics(suchfabric，carbonenhancewear—resistancevariousmatricessignificantly．Thepolymer—ieisfabric，sinceliablebrittlepolymericshowductilechar