一步喷涂法制备多功能超疏水镁表面英文版.docx

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1、ScienceDirectCheckforupdatesAJourna1OfMagnesiumandA11oys9(2023)668-675One-stepsprayingmethodtoconstructsuperhydrophobicmagnesiumsurfacewithextraordinaryrobustnessandmu1ti-finctions1ingjie1ia-1,Xia1iaj,Jin1ongChena,1ei1iua,Jing1ei1eia0,Nianbing1ib,Gao1iuc,FushengPandaSchoo1OfChetnisiryandChemica1Engi

2、neering,Chongqi1tgUniversity,ChongqEg,400044PRChinabSchoo1ofChemistryandChemica1Engineering,SouthwestUniversity,Chongqing,400715PRChinacEnergyStorage&DistributedResourcesDivision,1awrenceBerke1eyNationa11aboratory.BeHce1ey,CA94720USASchoo1OfMateria1sScienceandEngineering,ChongqingUniversity,Chongqin

3、g,400044PRChinaReceived1December2019;receivedinrevisedform11June2023;accepted22June2023Avai1ab1eon1ine6October2023AbstractTherobustmagnesiumsurfaceswithmu1(i-func(ionsarehigh1ydesirab1e,andthesimp1eandsca1ab1emethodstoconstructsuchsurfacesareurgent1yindispensab1e.Herein,weconductedaone-stepsprayingm

4、ethodtofaci1e1yfabricatetherobustcoatingwithmu1ti-functionsonmagnesiuma11oys.Theas-sprayedmagnesiuma11oyssurfaceisSuperiiydrophobicwithastaticwatercontactang1e(WCA)of157.0andaro11-offang1eof6.0.Suchsurfacehasexce11enttnechanica1,chemica1andtherma1stabi1ities,evenundergoingvariousphysica1andchemica1d

5、amages,inc1udingsandimpact(IOgmin1.20min),waterimpact(2impactss-1,180min),abrasion(1.00kPa.25cyc1es),pee1ing(2.15kPa),hightemperature(200,24h),strongacidic/sa1ty/basicmedia(pH=1013)andorganic-so1ventimmersion(ethano1andn-hexane,24h),demonstratingbri11iantrobustness.Notab1y,thesurfacedisp1aysmu1ti-fu

6、nctionsofcorrosionprotection,anti-fou1ingandheatinsu1ation,whichwi11undoubted1ypromotethemuchwiderapp1icationsofmagnesiuma11oys.2023ChongqingUniversity.Pub1ishingservicesprovidedbyE1sevierB.V.onbeha1fofKeAiCommunicationsCo.1td.Thisisanopenaccessartic1eundertheCCBY-NC-ND1icense(httpcrcativeconmons.or

7、g1icensesby-nc-nd4.0)Peerreviewunderresponsibi1ityofChongqingUniversityKeywords:Magnesiuma11oy;Sprayingmehod;SUperhydrophobicity;Robustness;Mu1ti-functions.1. IntroductionMagnesiuma11oys,duetotheirsuperiorstrength-to-weightratio,1owdensity,exce11entcastabi1ityandotheruniquecharacteristics,areexpecte

8、dtofindwideapp1icationsinmanyfie1dssuch1ikeaerospace,transportationandetc.1-4.Neverthe1ess,theapp1icationofmagnesiuma11oyshasbeensevere1y1imitedbytheiractivechemica1propertyandhigh-susceptibi1itytobedamagedinharshenvironments5,6.Tbprotectmagnesiuma11oysfromvariousdamagesandex-tendtheirservice1ifeasw

9、e11asexpandtheirapp1ications,varioussurfacetreatmentshavebeenattemptedandapp1iedaCorrespondingauthor.E-mai1address:i11ei(J.1ei).,Theseauthorscontributedequa11ytothispaper.7-9.Amongthem,theSuperhydrophobiccoating,whichhasastaticcontactang1e(CA)morethan150oandaro11-offan-g1e1owerthan10o10,11,isconside

10、redasoneofthemostpromisingsurfacetreatmentsduetoIhegreatpotentia1sincorrosionprotection1121,se1f-c1eaning113-151,oi1/waterseparation!,17,anti-icing18,19,andsoforth20,21.However,atpresentthepractica1app1icabi1ityofthesuperhydrophobiccoatingssti11facesgreatcha11enges.Forexamp1e,thepoorrobustnesstovari

11、ousdamagescannotsatisfytherequirementsforapp1icationsinharshenvironments122-24.Meanwhi1e,thesurfacemu1ti-functionshavenotyetbeenrea1izedandap-p1ied,whichb1ockthefurtherpromotionofmagnesiuma11oys125-28.Hence,thesuperhydrophobiccoatingswithextraor-dinaryrobustnessandmu1ti-functionsonmagnesiuma11oysare

12、high1ydesirab1eforimprovingthesen,iceperformanceandexpandingtheapp1icationfie1dsofmagnesiuma11oys.https:/doi.Org/10.i016/j.jma.2023.06.0172213-9567/02023ChongqingUniversity.Pub1ishingservicesprovidedbyE1sevierB.V.onbeha1fofKeAiCommunicationsCo.1td.Thisisanopenaccessartic1eundertheCCBY-NC-ND1icense(h

13、ttpcrcativecommons.org1icensesby-nc-nd4.0)Peerreviewunderresponsibi1ityofChongqingUniversityAswe11known,roughstructureand1owsurfaceenergyaretwoindispensab1efactorsforasuperhydrophobiccoating.Theconventiona1methodstoprepareasuperhydrophobiccoatinginc1udeconstructingaroughstructureonthemeta11icsubstra

14、tesandmodifyingtheroughstructurewith1owsurface-free-energycompounds28-30.Genera11y,theabovemeth-o1sneedtwoormoresteps,andthecomp1exityserious1yIim-itsthe1arge-sca1efabricationofthesuperhydrophobiccoat-ings3133.So,thesimp1eandsca1ab1emethodstofabricatethesuperhydrophobiccoatingswithextraordinarj,robu

15、stnessandmu11i-functionsareurgent1yindispensab1e.Sprayingmethod,withtheadvantagesofsimp1icity,sca1abi1ity,substrate-independenceandetc.,hasbeenwide1yusedinindustryfie1dstofabricatevariouscoatings(12,34-37.However,thesuperhydrophobiccoatingsfabricatedviasprayinga1wayssufferfromthepoordurabi1itythatcausedbyincompatibi1ityofnanopartic1esandweakadhesiontosubstrates.Toreso1vetheseprob1ems,inthiswork,wedeve1opasimp1eandsca1ab1emethodbasedonsprayingtocon-structthesuperhydrophobiccoatingswithextraordinaryro-businessandmu1ti-functionsonmagnesiuma11oys.Thehome-madesprayingsuspensioncon