聚脲交聯(lián)改性丙烯酸酯彈性乳液的制備與性能研究.pdf

1、山東輕工業(yè)學(xué)院碩士學(xué)位論文聚脲交聯(lián)改性丙烯酸酯彈性乳液的制備與性能研究姓名：楊寧申請學(xué)位級別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：姚金水；張獻(xiàn)20110610山東輕工業(yè)學(xué)院碩士學(xué)位論文IABSTRACTWiththeincreasingawarenessofenvironmentalprotectionmuchstrictlyenvironmentalregulationstheaqueouscoatingswhichhavetheac

2、teristicsoflowpollutionlowhazardhavebecametheprotagonistofthewldscoatingsmarketinthe21stcenturywidelyusedinconstructionfurniturevehicleslightindustry.Atpresentitalsohasalargeshareinourcountry.Theaqueouscoatingspreparedby

3、thepolyurethaneacrylicresinemulsionhavebeenappliedquitewidely.Howevertheperfmancewhichneedtoimprovedbetterwaystoobtainthespecialfeaturesarestillproblems.Itiswellknownthatpolyurethanepolyureaacrylatepolymercanbecomplement

4、arytoeachotherinperfmance.Althoughtherehavebeenmanyreptsonthesynthesisofthepolyurethanemodifiedacrylicemulsionthesynthesisofpolyureacrosslinkingmodifiedacrylicemulsionwererarelyinvolved.Thethesishasacomprehensivereviewon

5、emulsionpolymerizationtheyfilmflexibilityprincipleAcrylicelasticemulsionresearchprogresspolyurethane(polyurea)modifiedacrylateelasticemulsionresearchprogress.Thepreparationofthepolyureamodifiedacrylicemulsionmanyinfluenc

6、ingfactswereexpledstudiedinthethesis.Tocomparepolyureacrosslinkingmodifiedacryliclatex(PUA)withacrylicemulsion(PA)intheaspectofperfmance.Endisocyanatepolyureaprepolymerissynthesizedbyaminoterminatedpolyetherswithtoluened

7、iisocyanateusingacetoneasthesolvent.Duetothereversiblecondensationreactionofamineacetonetheactivityoftheaminogroupsisocyanategroupswasreduced.Thusthereactionratecouldbebettercontrolledtheratioofadversereactionswouldbedec

8、reased.ThePUmacromonomerwhichcontainstwodoublebondswasobtainedthroughpolyureaprepolymerwhichwasterminatedbythedoublebondofhydroxyethylacrylateester.Itwasfurtherusedasthecrosslinkingagentcombinedwithmethylmethacrylatebuty

9、lacrylatefinallytheacryliclatexelasticwhichwasmodifiedbyPUwassynthesizedbyemulsioncopolymerization.ThefilmswereacterizedbyFTIRDSCTGAmeasurement.Furthermethebestsyntheticprocessthesuitableexperimentalconditionsmanyotherfa

10、ctsweredetermined.Thisthesisshowthatcomparingwithacrylicemulsiontheacrylateelasticemulsionwhichmodifiedbypolyurehavebettermechanicalpopertieslowtemperatureresistancethermalstabilitysolventresistance.Inadditioninthethesis