幾種氧化物薄膜及聚丙烯材料的表面潤(rùn)濕性控制研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文幾種氧化物薄膜及聚丙烯材料的表面潤(rùn)濕性控制研究姓名：秦衛(wèi)龍申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：化學(xué)工程指導(dǎo)教師：王軍趙毅20050601兒種氧化物薄膜及聚丙烯材料的表面潤(rùn)濕性控制研究StudyonsurfacewettabilitycontrolofseveraloxidefilmsandpolypropyleneAbstractWettabilityofsolidsurfacesisanimportantpropertyt

2、akentoconsiderationinmanypracticalfieldsThecontrolofsurfacewettabilityhasatlractedincreasingresearchattentioninrecentyears11isdissertationworksmairdyonthistopicFirstlythecontrolofthewettabilityofseveraloxidethinfilms，inc

3、ludingTi02，ZnO，Sn02，F(xiàn)e203andCr203，isdemonstratedbytheuseofUVirradiationandwetmechanicalrobbing，Then，wetchemicaltreatmenthasbeensuccessfullyappliedtoimprovethehydrophilicityofpolypropylenesurfaceInaddition，anovelsol—gelap

4、proachhasbeendevelopedforthefabricationofFe203，andCr203filmsSeveraloxidefilms，includingTi02，ZnO，Sn02，F(xiàn)e203andCr203，arefabricatedoncA3rnmonglasssubstratesbysol—geldip—coatingtechniqueTheas—preparedfilmsandcorrespondingpow

5、dersarecharacterizedbyvarioustechniques，suchasDSC，XRD，SEMandAFMnecontrollabilityoftheirwettabilltyuponUVirradiationandwetmechanicalrobbingiSinvestigatedTheresuitsindicatethattheas—preparedfilmsaredense，uniformandadheredt

6、ightlytothesubstmtesThefilmsarecomposedofnanocrystallineparticlesTheirradiationwithUVrendersthesurfaceofTi02，ZnO，Sn02andFe203hydrophilicThishydrophilicsurface，afterwetrubbingtreating，Canbeconvertedtoarelativelyhydrophobi

7、coneThehydrophilichydrophobictransitionisreversibleandcallbequicklyaccomplishedThetransitionfromhydrophobicitytohydmphilicityunderUVirradiationisbelievedtobearesultoftheformationofsurfacehydroxylAlso，thetransitionfromhyd

8、mphilicitytohydrophobicityunder“wetrobbing”maybecausedbytheeliminationofsurfacehydroxylonthesurfaceToimprovethehydrophilicityofpolypropylenesurface，wetchemicaltreatingisusedinthisstudyThefollowinginfluentialfactorsinclud

9、ingthespeciesofoxidizer，concentrationofH2S04，themassratioofK2Cr204toH2S04，treatingtime，andtreatingtemperature，areinvestigatedThetreatingconditionsareoptimizedaccordingtoorthogonaltestsAftertreating，thecontactangledecreas

10、esby30％TheFT—IRspectrashowanincreaseOftheintensityoftheabsorptionpeakofthecarboxylicgroupC=Oatl7l4cm—ThisindicatesthatthenumberofpolaroxygenousgroupsincreasesaftertreatingAtthesametime，themicroscopeimagesrevealthatsurfac