納米tio,2表面改性及其復(fù)合涂層的制備

1、南昌航空大學(xué)碩士學(xué)位論文納米TiO表面改性及其復(fù)合涂層的制備姓名：鄭高申請學(xué)位級別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：杜楠20070601南昌航空大學(xué)碩士學(xué)位論文AbstractIIABSTRACTSinceimperceptibilityoftheparticlesizeoftitaniumdioxidetheproptionofitsareavolumeincreasedwithit.Thespecialityofelectromagism

2、calificsoccurtransfmationofnanoTiO2.Nanometercompositepaintiscomposedofnanoparticlesganicresinpaint.Thepaintwillhavespecialeffectifaddnanoparticlesintopaintsocanraisemechanicalpropertiesofcoatingsuchasstrengthhardnessant

3、icrosionantibacterialpropertiesetc.InthisexaminationthenanometerruitileTiO2(20～40nm)whichwassurfacemodifiedbymicrocapsulelongchainalkaneethylmethacrylatemacromolecularlongchainwasengraftedonthesurfaceofmodifiedTiO2.Itssu

4、rfacestructuregraftingdegreedispersionpropertieswerestudiedwithdispersiontestscanningelectronmicroscopy（SEM.）fouriertransfminfraredray（IR）thermalanalysis（TGA）.Theresultsshowthatthemodifiednano–TiO2particlescandisperseint

5、heganicsolventwithnanosizethebestgraftingdegreeoflongchainalkanemicrocapsulewere5%12%respectively.Themodifiednano–TiO2wasblendedwithpolyurethanecoatingsoftwocompositionstoobtainnano–TiO2polyurethanecompositecoatingwithhi

6、ghspeedmixbyplaaryballmill.ThesurfaceacterpercentagecompositionofnanoTi02havesignificantinfluenceonthepropertiesofcoatingswhichwasstudiedbycoatingcapabilitytest.Theresultsshowthatthecompositecoatinghavebestpropertieswhen

7、microcapsulemodifiednano–TiO2particlecontentcometo2wt%.TheexperimentaldatumshowthatthehardnessofthiskindofnanoTiO2compositecoatinggofrom0.8to0.85itsimpactresistancepropertiesgofrom35kgcmto40kgcmwhichwascontrastedtotheigi

8、nalcoating.InthesametimetheadhesionbendingresistancebrightnesspropertiesofmodifiednanoTiO2coatingsaresameasiginalcoating.Throughtheelectrochemicalimpedancespectroscopytostudytheanticrosionpropertiesofcompositecoatings.Th

9、eresultsshowthattheanticrosionofmodifiednanoTiO2compositecoatingcanendure480hbrinemarinate.Throughtheantibacterialexperimentationtostudytheantibacterialpropertiesofcompositecoating.heresultsshowthatthegrowthofbacteriumon