ZG客户在国际期刊上发表的文章14

文档简介InfluenceofaramidfibermoistureregainduringatmosphericplasmatreatmentonagingoftreatmenteffectsonsurfacewettabilityandbondingstrengthtoepoxyYuRen,ChunxiaWang,YipingQiu*Oneofthemaindifferencesbetweenalow-pressureplasmatreatmentandanatmosphericpressureplasmatreatmentisthatinatmosphere,thesubstratematerialmayabsorbsignificantamountofwaterwhichmaypotentiallyinfluencetheplasmatreatmenteffects.Thispaperinvestigateshowthemoistureabsorbedbyaramidfibersduringtheatmosphericpressureplasmatreatmentinfluencestheagingbehaviorofthemodifiedsurfaces.Kevlar49fiberswithdifferentmoistureregains（MR）（0.5,3.5and5.5%,respectively）aretreatedwithatmosphericpressureplasmajet（APPJ）withheliumasthecarriergasandoxygenasthetreatmentgas.Surfacewettabilityandchemicalcompositions,andinterfacialshearstrengths（IFSS）toepoxyforthearamidfibersinallgroupsaredeterminedusingwatercontactanglemeasurements,X-rayphotoelectronspectroscopy（XPS）,andmicro-bondpullouttests,respectively.Immediatelyaftertheplasmatreatment,thetreatedfibershavesubstantiallylowerwatercontactangles,highersurfaceoxygenandnitrogencontents,andlargerIFSStoepoxythanthoseofthecontrolgroup.Attheendof30dayagingperiod,thefiberstreatedwith5.5%moistureregainhadalowerwatercontactangleandmorepolargroupsonthefibersurface,leadingto75%improvementofIFSSoverthecontrolfibers,whilethoseforthe0.5and3.5%moistureregaingroupswereonly30%.