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2018-09-10 11:11 872閱讀次數

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• ZG客戶在國際期刊上發(fā)表的文章15

  Themorphologicaleffectsuponenzymaticdegradationofpoly（butylenesuccinate-co-butyleneterephthalate）s（PBST）FaxueLi*,Xin極anXu,JianyongYu,AminCaoInthiswork,theenzymaticdegradationofpoly（butylenesuccinate-co-butyleneterephthalate）（PBST）copolyesterswasstudiedusingthelipasefromPseudomonas（LipasePS）.ThebiodegradationbehaviorwasfoundtostronglydependontheoverallimpactsofseveralimportantfactorsastheBTcomonomerstructureandmolarcontent,thermalcharacteristics,morphology,theenzyme-substrate,andsoforth.Further,thebiodegradedresidualfilmsampleswereallowedtobeanalyzedbymeansofgelpermeationchromatography（GPC）,protonnuclearmagneticresonance（1HNMR）,differentialscanningcalorimeter（DSC）,smallangleX-rayscattering（SAXS）,andscanningelectronmicroscope（SEM）.Ontheexperimentalevidences,anexo-typemechanismofenzymaticchainhydrolysispreferentiallyoccurringintheamorphousregionwassuggestedforthePBSTfilmsamples.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章16

  ConversionoftheSurfacePropertyofOleicAcidStabilizedSilverNanoparticlesfromHydrophobictoHydrophilicBasedonHost-GuestBindingInteractionMingChen,WenHuaDing,YangKong,andGuoWangDiao*Thispaperdescribesageneralmethodtochangethesurfacepropertyoftheoleicacidstabilizedsilvernanoparticlesandsuccessfultranferringofthesilvernanoparticlesfromtheorganicphaseintotheaqueousphase.Byvigorousshakingofabiphasicmixtureofthesilverorganosolprotectedwitholeicacidandp-sulfonatedcalix[4]arene（pSC4）aqueoussolution,itisbelievedthataninclusioncomplexisformedbetweenoleicacidmoleculesandpSC4,andtheprotectivelayerofthesilvernanoparticlesshiftsfromhydrophobictohydrophilicinnature,whichdrivesthetransferofsilvernanoparticlesfromtheorganicphaseintotheaqueousphase.TheefficiencyofthephasetransfertotheaqueoussolutiondependsontheinitialpSC4concentration.ThepSC4-oleicacidinclusioncomplexstabilizednanoparticlescanbestableforlongperiodsoftimeinaqueousphaseunderambientatmosphericconditions.TheprocedureofphasetransferhasbeenindependentlyverifiedbyUV-vis,transmissionelectronmicroscopy,Fouriertransforminfrared,and1Hnuclearmagneticresonancetechniques.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章14

  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%.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章13

  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.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章12

  Thephysicalpropertiesofaqueoussolutionofroom-temperatureionicliquidsbasedonimidazolium:DatabaseandevaluationWeiweiLiu,LingyanCheng,YumeiZhang,HuapingWang?,MingfangYuWereportthesystematicstudiesofthephysicalpropertiesofsystemsinvolvingimidazoliumbasedionicliquidsandwater.Themeasurementsofdensityρ,refractiveindexΔn,viscosityη,specificconductanceκandsurfacetensionγweremadeoverthewholeconcentrationrange.TheequivalentconductivityΛmwascalculated.Thephysicalproperti`esofthesolutionschangedwiththechangeofassociationbetweenionicliquidandwater.Thephysicalpropertiesofthesolutionsalsovarywiththealkyllengthonthecationandpolarityofanion.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章11

  Fabricationandinvitrodrugreleasestudyofmicrospheredrugdeliverysystemsbasedonamphiphilicpoly-,-[N-（2-hydroxyethyl）-l-aspartamide]-g-poly（l-lactide）graftcopolymersYu-XiangZhou,Song-LinLi,Hui-LiFu,Si-XueCheng,Xian-ZhengZhang,Ren-XiZhuoBiodegradableamphiphilicgraftcopolymerswithdifferentcompositionsweresynthesizedbygraftingpoly（l-lactide）（PLLA）sequencesontoawater-solublepoly-,-[N-（2-hydroxyethyl）-l-aspartamide]（PHEA）backbone.Thecriticalmicelleconcentration（CMC）ofthegraftpolymerswasdeterminedbyfluorescenceprobetechnique.UsingtheMTT（3-（4,5-dimethylthiazol-2-yl）-2,5-diphenyltetrazoliumbromide）assay,thegraftpolymerswereprovedtohavelowcytotoxicity.Basedonthespecificphysicochemicalpropertyofthegraftcopolymers,submicronsizedmicrospheredrugdeliverysystemswerepreparedbyaveryconvenient“ultrasonicdispersionmethod”,whichdidnotinvolvetoxicorganicsolvents.Thedrug-loadedmicrosphereshadaregularsphericalshapewithanarrowsizedistribution.Ahydrophobicdrug,prednisoneacetate,wasencapsulatedintopolymericmicrospheresandtheinvitrodrugreleasewasstudied[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章10

  pH-AmplifiedExponentialGrowthMultilayers:AFacileMethodtoDevelopHierarchicalMicro-andNanostructuredSurfacesJinhongFu,JianJi,LiyanShen,AlexanderKu¨ller,AxelRosenhahn,JiacongShen,andMichaelGrunze*Wereportadirectmethodtoamplifytheexponentialgrowthofmultilayerssignificantlybythealternatingdepositionofpolyethylenimine（PEI）athighpHandpoly（acrylicacid）（PAA）atlowpH.ThealternatingpHswitchesthedegreeofionizationofthepolyelectrolytesinthemultilayers,whichenhancesthediffusionofPEIintoandoutofthefilmandhenceincreasesthedepositedmasspercycle.ThesynergeticactionofthepH-tunablechargedensityanddiffusivityoftheweakpolyelectrolytesprovidesanewmethodfortheenhancedgrowthofmultilayerswithhierarchalmicroandnanostructuredsurfaces.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章9

  FluorescentFilmSensorforVapor-PhaseNitroaromaticExplosivesviaMonolayerAssemblyofOligo（diphenylsilane）onGlassPlateSurfacesGangHe,GuofangZhang,FengtingLu¨,andYuFang*Afluorescentfilmsensorwaspreparedbychemicalassemblyofoligo（diphenylsilane）sonaglassplatesurfaceandwasusedforthedetectionofnitroaromaticcompounds（NACs）invaporphase.Thisdesigncombinestheadvantagesoffluorescentfilmsbasedonsingle-layerchemistryandthesignalamplificationeffectofconjugatedpolymersandprovidesaneffectivewaytocreatenovelfluorescencesensingfilmsforNACsexplosives.Theadvantageshavebeendemonstratedexperimentallybythesupersensitiveresponseoftheabove-mentionedfilmtothepresenceoftraceamountsofNACsinvaporphase.Furtherexperimentsshowedthatthesensingprocessisreversible,andthecommonlyencounteredinterferingsubstanceshavenointerferencetotheprocess.Fluorescencelifetimemeasurementsrevealedthatthequenchingisstaticinnature.Thesupersensitiveresponse,andthereversibilityandinterferencefreeofthesensingprocess,makethefilmapromisingNACssensor.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章8

  RoomTemperatureIonicLiquidBasedPolystyreneNanofiberswithSuperhydrophobicityandConductivityProducedbyElectrospinningXianboLu,JianhuaZhou,YihuaZhao,YongQiu,andJinghongLi*Inthisreport,apolystyrene-ionicliquid（PS-IL）compositenanofiberwassuccessfullyproducedforthefirsttimebyanelectrospinningmethod.TheelectrospuncompositefilmswerecharacterizedbySEM,FTIR,cyclicvoltammetry,watercontactangle（WCA）measurement,andconductivitymeasurement.Thedimension,morphology,conductivity,andhydrophobicityofelectrospunPS-ILcompositefilmcanbeeffectivelycontrolledbyalteringtheexperimentalparametersforelectrospinning,especiallythecontentofILintheoriginalelectrospinningsolution.TheelectrospunPS-ILcompositefilmdisplayedbothsuperhydrophobicityandconductivity,whichmaybeascribedtothemicro-andnanoscalehierarchicalstructuresofthePS-ILcompositefilmandtheintrinsichydrophobicityandconductivityoftheIL（BMIPF6）.EntrapmentofILwithinpolymerbyelectrospinningprovidesafacilewaytocreateIL-basednanofibersandcompositefilmandmayfindwidepotentialapplicationsinthefabricationofcontrollableandfunctionalsurface.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章7

  SuperhydrophobicPatternedFilmFabricatedfromDNAAssemblyandAgDepositionLingluYang,ShuoBai,DunshenZhu,ZhaohuiYang,MaofengZhang,ZhifengZhang,ErqiangChen,andWeixiaoCao*InthisarticleweobtainedasuperhydrophobicpatternedAgfilmmainlybytwosteps.ThefirststepistofabricateaDNAfilmpatternthroughpoly（dimethyldiallylammoniumchloride）alternatedepositionwithDNAonalatentimagingfilmformedbytheselectiveUVexposureofaphotosensitivediazoresin/poly（acrylicacid）self-assembly（SA）film.ThesecondstepistobuildupthepatternedAgfilmonaDNAfilmpatternwithAgelectrolessdeposition.Aftersurfacemodificationwithn-dodecanethiolthepatternedAgfilm,whichexhibitsobviousmicrostructuresandnanostructures,willpossesssuperhydrophobicpropertiesandthecontactanglecanreachto162°.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章6

  Surface,InterfacialandAggregationPropertiesofSulfonicAcid-ContainingGeminiSurfactantswithDifferentSpacerLengthsJipingYang,JianyunXie,GuangmingChen,andXiaochenChenFoursulfonicacid-containinggeminisurfactants9BA-m-9BA（m=2,3,4,6）,6,60-（ethane-1,2-diylbis（oxy））bis（3-nonylbenzenesulfonicacid）（9BA-2-9BA）,6,60-（propane-1,3-diylbis（oxy））bis（3-nonylbenzenesulfonicacid）（9BA-3-9BA）,6,60-（butane-1,4-diylbis（oxy））bis（3-nonylbenzenesulfonicacid）（9BA-4-9BA）,and6,60-（hexane-1,6-diylbis（oxy））bis（3-nonylbenzenesulfonicacid）（9BA-6-9BA）,weresynthesizedandcharacterizedbyFouriertransforminfrared（FTIR）,1HNMR,elementalanalysis,andmeltingtemperaturemeasurements.Theirabilitytolowerthewatersurfacetensionandhexadecane/waterinterfacialtensionwasmeasuredandcorrelatedwiththehydrophobicityandlengthoftheiralkylspacerchain.Theiraggregatesinaqueoussolutionswereinvestigatedusingdynamiclightscatteringandtransmissionelectronmicroscopy.Sphericalvesiclescouldbefoundinaqueoussolutionsoffourgeminisurfactantswithanapparenthydrodynamicradius（Rh）of100nm.Thecriticalmicelleconcentration（cmc）offourgeminisurfactantsevaluatedbysurfacetensionmeasurementswas1orderofmagnitudesmallerthanthatofconventionalsingle-chainsurfactantsodiumdodecylsulfonate（SDS）.AndtheirC20,thegeminisurfactantconcentrationrequiredforloweringthesurfacetensionofwaterby20mN/m,wasabout2ordersofmagnitudesmallerthanthatofSDS,showingexcellentefficiencyatreducingthesurfacetensionofwater.Inaddition,thehexadecane/waterinterfacialtensioncouldbelessthan1.0mN/mafterusingpure9BA-m-9BAinwater.Using9BA-6-9BAthehexadecane/waterinterfacialtensionwasreducedto0.21mN/m.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章5

  TunablecellmembranemimeticsurfacespreparedwithanovelphospholipidpolymerMingGong,ShanYang,Jia-niMa,Shi-pingZhang,FrancoiseM.Winnik,Yong-kuanGong*Anovelmethodtofabricateandtunecellmembranemimeticsurfaceswasdevelopedbasedontheuseofanamphiphilicrandomcopolymerbearingphosphorylcholine（PC）,stearylandcrosslinkabletrimethoxysilylpropylgroupssynthesizedbyfreeradicalcopolymerization.Thepolymerwascoatedonglasscoverslipsbydip-coating.Thecoatedfilmsweretreatedinwaterallowingreorganizationofthesurfacegroupstomimicthestructureofcelloutermembranes.Thisstructurewasfixedbycrosslinkingofthetrimethoxysilylpropylgroupslinkedtothecopolymerchains,asascertainedbydynamiccontactangle（DCA）andattenuatedtotalreflectanceinfraredspectroscopy（ATR-FTIR）measurements.Ourresultsindicatethatthesurfacestructurecanbetunedtoagreatextenttoobtainastableoutermembranemimeticsurface/interface.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章4

  PreparationandcharacterizationofnovelCe-dopednonstoichiometricnanosilica/polysulfonecompositemembranesYuqingZhang,LiboShan,ZhengyuTu,YahuiZhangPolysulfone（PSF）isakindofmembranematerialwithbetterperformanceandbroadlyappliedinwaterpurification,biochemistryseparation,Chinesetraditionalherbdrugsextractionandconcentration,etc.ButPSFmembranehasatendencytobecontaminatedforitshydrophobicity,whichcanresultindecliningoffluxandlifeofthemembrane.ToenhancethecapabilityofPSFmembrane,suchastensilestrength,hydrophilicproperty,anti-fou領ability,novelorganicinorganiccompositemembraneswerepreparedbyaprocessofaddingmodifiednanosilicawithhigheractivityandhydrophilicpropertytotheporousmatrixofPSF.Ce-dopednonstoichiometricnanosilica（modifiednanosilica）wassynthesizedbydopingtherareearthCeelement.Compositemembraneswerepreparedbysolgelprocessandcharacterizedbytestoftensilestrength,contactangel,porosity,infraredspectroscope（IR）,environmentscanningelectronmicroscope（ESEM）andperformanceforoilwaterseparation.Theresultsshowthattensilestrengthisimprovedtoalargeextentandcontactangelreducesfrom78.6to41.7;porosityreaches75%.IRspectrumofthecompositemembraneindicatesthattheceriumelementhasenteredintotheframeworkofnanosilica.ESEMmicrographsindicatethatthecompositemembraneowningtheasymmetrystructurehastwolayersofcompactlayerandporouslayerandthatmodifiednanosilicaisuniformlydispersedinPSF.Thefluxintreatmentofwastewatercontainingoilisgreatlyincreased,soitindicatesthattheantifou領abilityissignificantlyenhancedandtreatmentofwastewatercontainingoilusingthecompositemembranedevelopedisfeasibleanddesirable.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章1

  ApplicationoftheRestrictingFlowofSolidEdgesinFabricatingSuperhydrophobicSurfacesXianliangSheng,JihuaZhang,andLeiJiangInthisarticle,asimplemethodofpressingaconicalfrustumintoliquidwasadoptedtoexploretheabilitytorestrictflowaroundtheiredges.Onthebasisofexperimentsandtheoreticalanalyses,therestrictingforceΔfandthepressingworkΔEwwereusedtocharacterizetheabilitytorestrictflowaroundtheedgeforwaterorformamide,whichwerefoundtobecloselyrelatedtothegeometricmorphologiesofedgesandtheliquidandmaterialcharacteristics.Theabilitytorestrictflowaroundtheedgemaybeenhancedbyincreasingtheriseangleωandthesizeofedgecirclesandusingahigh-surface-energyliquid.Inspiredbythis,thesuperhydrophobicityofthematerialswithlowerhydrophobicityhasbeensuccessfullyobtainedbyconstructingclosemicroedgesontheirflatsurfaces.Webelievethatthesefindingswouldhelptowidenseveralnovelapplicationstohigh-adhesionsuperhydrophobicsurfaces.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章2

  Effectofadditivesonthefabricationofpoly（vinylidenefluoride-co-hexafluropropylene）（PVDF-HFP）asymmetricmicroporoushollowfibermembranesLeiShi,RongWang,YimingCao,DavidTeeLiang,JooHwaTayTheeffectsoftwotypicaladditives,lithiumchloride（LiCl）andglycerol,onthefabricationofpoly（vinylidenefluoride-co-hexafluropropylene）（PVDF-HFP）asymmetricmicroporoushollowfibermembraneswereinvestigatedintermsofmembranemorphology,structure,permeationperformance,hydrophobicityandmechanicalproperty.Theadditionoftheadditivesintothedopesolutionalteredthemorphologyandstructureoftheresultantmembranes,whichwasbelievedtobeassociatedwiththechangeofthethermodynamicandkineticpropertiesofthesysteminthephaseinversionprocess.Themembraneswithimprovedpurewaterpermeability（PWP）from6.908×105（7）to4.835×104（49）,3.256×104（33）and5.003×104L/hm2Pa（51L/hm2atm）wereobtainedwhen2wt.%LiCl,4wt.%LiCland10wt.%glycerolwasusedastheadditive,respectively.Amongthese,themembranemadefromthedopecontaining4wt.%LiClpossessedthehighestretentioncapabilityof40kDamolecularweightcut-off（MWCO）.TheLiClorglyceroladditionintothepolymerdopealsomadethemembranesexhibitanarrowporesizedistribution.Moreover,themembranehydrophobicitywasaffectedlessbyLiClandglycerolthanbypoly（vinylpyrrolidone）（PVP）.Theadditionof4wt.%LiClintothedopecouldformthemembranewithfourtimesstrongerstrainstrengththanthepoly（vinylidenefluoride）（PVDF）commercialmembranewhilekeepingsimilarrigidity.[詳細]

  2018-09-10 11:11

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• ZG客戶在國際期刊上發(fā)表的文章3

  FabricationandcharacterizationofhydrophobicPVDFhollowfibermembranesfordesalinationthroughdirectcontactmembranedistillationDeyinHou,JunWang,DanQu,ZhaokunLuan,Xiao極ngRenThemixtureofinorganicsaltLiClandsolublepolymerpolyethyleneglycol（PEG）1500asnon-solventadditivewasintroducedtofabricatehydrophobichollowfibermembraneofpolyvinylidenefluoride（PVDF）byphaseinversionprocess,usingN,N-dimethylacetamide（DMAc）assolventandtapwaterasthecoagulationmedium.ComparedwithotherthreemembranesfromPVDF/DMAc,PVDF/DMAc/LiClandPVDF/DMAc/PEG1500dopesolution,itcanbeobservedobviouslybyscanningelectronmicroscope（SEM）thatthemembranespunfromPVDF/DMAc/LiCl/PEG1500dopehadlongerfinger-likecavities,ultra-thinskins,narrowporesizedistributionandporousnetworksponge-likestructureowingtothesynergisticeffectofLiClandPEG1500.Besides,themembranealsoexhibitedhighporosityandgoodhydrophobicity.Duringthedesalinationprocessof3.5wt%sodiumchloridesolutionthroughdirectcontactmembranedistillation（DCMD）,thepermeatefluxachieved40.5kg/m2handtherejectionofNaClmaintained99.99%withthefeedsolutionat81.8Candthecolddistillatewaterat20.0C,thisperformanceiscomparableorevenhigherthanmostofthepreviousreports.Furthermore,a200hcontinuouslydesalinationexperimentshowedthatthemembranehadstablepermeatefluxandsoluterejection,indicatingthattheas-spunPVDFhollowfibermembranemaybeofgreatpotentialtobeutilizedintheDCMDprocess.[詳細]

  2024-09-28 03:48

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• 2014年發(fā)表在Science上的關于低溫力學的文章

  2014年發(fā)表在Science上的關于低溫力學的文章[詳細]

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• ZG農業(yè)科學院楊國慶博士對紫荊澤蘭的研究論文在SCI期刊上成功發(fā)表

  ZG農業(yè)科學院楊國慶博士對紫荊澤蘭的研究論文在SCI期刊上成功發(fā)表[詳細]

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• MFD產品在德國雜志上發(fā)表的關于生物反應器上的應用

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• LGR液態(tài)水同位素分析儀在PNAS上發(fā)表的Zxin文獻

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