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超支化水性聚氨酯乳液的制备及性能研究的任务书.docx

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超支化水性聚氨酯乳液的制备及性能研究的任务书 Title:ThePreparationandPerformanceStudyofOverspendingWaterbornePolyurethaneEmulsion BackgroundandSignificance: Asanenvironmentallyfriendlycoatingmaterial,waterbornepolyurethaneemulsionhasbeenwidelyusedinvariousfieldssuchascoatings,adhesives,andtextiles.However,duetoitsrelativelyweakperformanceinwaterresistanceandageingresistance,thedevelopmentofoverspendingwaterbornepolyurethaneemulsionhasbecomeahotspotinthefieldofpolyurethaneresearch. Thepurposeofthistaskistostudythepreparationandperformanceofoverspendingwaterbornepolyurethaneemulsion,toimproveitswaterresistanceandageingresistance,aswellastoprovidetechnicalsupportandtheoreticalguidanceforthedevelopmentandapplicationofhigh-performancewaterbornepolyurethaneemulsion. ResearchPlan: 1.Theformulationdesignandpreparationofoverspendingwaterbornepolyurethaneemulsion (1)Selectandoptimizethetypeandamountofrawmaterials,accordingtotherequirementsofperformanceimprovement; (2)Prepareanoverspendingwaterbornepolyurethaneemulsionviaasemi-continuousemulsionpolymerizationmethod; (3)Studytheinfluenceofprocessconditionsontheperformanceofoverspendingwaterbornepolyurethaneemulsion. 2.Characterizationofthepropertiesofoverspendingwaterbornepolyurethaneemulsion (1)Characterizethemolecularweight,particlesize,anddistributionoftheemulsion; (2)Analyzethethermalstability,hydrophilicity,andmechanicalpropertiesoftheemulsion. 3.Studytheperformanceofoverspendingwaterbornepolyurethaneemulsion (1)Evaluatethewaterresistanceandageingresistanceoftheemulsion; (2)Evaluatetheadhesionperformanceandcoatingperformanceoftheemulsion. 4.Analysisanddiscussionoftheexperimentalresults (1)Analyzeanddiscusstheinfluenceofthepreparationprocessandformulationvariablesontheperformanceofoverspendingwaterbornepolyurethaneemulsion; (2)Analyzeandcomparetheperformanceofoverspendingwaterbornepolyurethaneemulsionwiththatoftraditionalwaterbornepolyurethaneemulsion. 5.Conclusionandoutlook (1)Summarizethemainfindingsandconclusionsoftheexperiment; (2)Discussthef