LGR液态水同位素分析仪在PNAS上发表的Zxin文献

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  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%.[详细]

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  PolymerplatingonAZ31magnesiumalloysurfaceandfilmevaluationofcorrosionpropertyZhixinKang,JingSang,MingShao,YuanyuanLiThepolymericthinfilmwaspreparedonthesurfaceofAZ31magnesiumalloybypolymerplatingof6-dihexylamino-1,3,5-triazine-2,4-dithiolmonosodium（DHN）inordertomodifyitssurfacefeatureandtoimproveitsanti-corrosiveproperty.Cyclicvoltammetrywasusedtostudytheelectrochemicalreactionandfilmgrowthprocessofpoly（6-dihexylamino-1,3,5-triazine-2,4-dithiol）（PDH）film,andthereactionpeaksforfilmformationandgrowthwereaffirmed.Thepolymericfilmweightwasdeterminedbyelectronicbalanceanditsinsolublefractionintetrahydrofuranwasalsomeasured.Contactanglemeterwasappliedtotestthesurfacewettabilitywithdistilledwaterdropsatambienttemperature.Itwasfoundthatthepolymer-platedAZ31alloyshowedhydrophobicpropertywithitsdistilledwatercontactangleupto117.2.TheperformancepropertyofpolymericthinfilmformedonAZ31surfacewasstudiedbypotentiodynamicpolarizationandelectrochemicalimpedancespectroscopy（EIS）inthecorrosionsolutionof3.5%NaCl.Theelectrochemicalexperimentresultsshowedthatpolymer-platedthinfilmwithhydrophobicandinsulativecharacteristicscouldprovidesurfacemodificationandaneffectiveanti-corrosiveprotectiontomagnesiumalloysubstratecomparedtotheblankone.[详细]

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  2018-09-10 11:11

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  2018-09-10 11:11

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• ZG客户在国际期刊上发表的文章5

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  2018-09-10 11:11

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