TiO2纳米粒子改性有机醇酸涂料性能研究

16520049CORROSIONSCIENCEANDPROTECTIONTECHNOLOGYVol116No15Sep12004:2003203225;2003207203:(G19990650)(50001013):(1967-),,..Tel:[phone]E-mail:yiwang67@hotmail1comTiO21,2,2,2,111,11000421,110016:TiO2.,,TiO2;,,TiO2.:TiO2;;;:TG174121:A:100226495(2004)0520265203PERFORMANCESOFORGANICALKYDCOATIGNSMODIFIEDBYNANO-TiO2WANGYi1,2,LIYing2,WANGFu2hui2,WANGEn2de111NortheasternUnivrsity,Shenyang110004;21StateKeyLaboratoryforCorrosionandProtection,InstituteofMetalResearch,ChineseAcademyofSciences,Shenyang110016ABSTRACT:Byaddingdispersantandproperstirring,nano-TiO2particlesmaybeuniformlydis2tributedinorganicalkydcoatingwithoutanyagglomeration.Alkydcoatingmodifiedbynano-TiO2showshighresistancetoultravioletandcorrosivesalt-sprayincomparisonwithalkydcoatingwithtraditionaltitaniumwhite.Itswearresistancealsoincreasessignificantly.KEYWORDS:TiO2nano-particles;modify;alkyd;properties,,,.,.TiO2(),,,TiO2,,.,,.TiO2.,[1].,,,,.,.,,.1111,,TiO2,(MiniZeta),TiO21%2%3%4%5%(mass%),,4mass%.A3,,,2,(10410)m.112TiO2AETASIZER3000,.:YWX/Q-020.:(402),,4515,315%,:(0141)g/80cm2/h.GGZ300,,,45,9mV/cm2.,(10410)m.NUS-1SUGA,64gf,1000#,A3.2211TiO2,,.,,,5000/,2800/,,.TiO21,,7813nm,TiO2,,.(2a),,,(2b).,,11,,.212TiO2,,,.TiO2TiO2,,,TiO2,,TiO2TiO2.Fig.1Sizedistributionofnano-TiO2(numberdistribution)Fig.2TEMmorphologyofalkydcoatingsmodifiedbynano-TiO2with(a)andwithout(b)dispersantFig.3VisualappearanceofsamplesafterUV-radiation.(a)Alkydcoating;(b)alkiydcoatingwithnano-TiO2particles66216Fig.4Visualappearanceofsamplesexposuretosalt-spray(144hsalt-spraytest):(a)alkydcoating;(b)alkydcoatingwithnano-TiO2particles(4%)Fig.5Visualappearanceofsamplesafterwearingtest:(a)alkydcoatingwithtitaniumwhite(4%);(b)alkydcoatingwithnano-TiO2particles(4%),.303.,,;,,,TiO2,.213TiO2,GB/T1771-91.1444.,,,,,.214TiO2[2,3],,,,,,(5).,4%TiO2,,01325.54%4%TiO2(),,,.3,TiO2,TiO2,,,TiO2.:[1]HenryL,Jakubauskas.UseofA-Bblockpolymersasdisper2santsfornon-aqueouscoatingsystems[J].JournalofCoatingsTechnology,1986,58(736):72.[2]BJBriscoe,MDSteward.TheeffectofcarbonandglassfillersonthetransferfilmbehaviorofPTFEcomposites[M].Tribolo2gy1978,MaterialsPerformanceandConservation,IMechE,London,1978.17.[3]BJBriscoe,AKPogosianandDTabor,Thefrictionandwearofhighdensitypolythene:Theactionofleadoxideandcopperox2idefillers[J].Wear,1974,27:19.7624:TiO2