乳液聚合新技术应用研究

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1、乳液聚合新技术应用研究摘要水性涂料是以水为溶剂或分散介质的环保涂料，具有环境污染小、施工安透射电镜(TEM)观察了粒子的形态，讨论了乳化剂、聚合工艺、反应温度等对乳液聚合的影响。通过比较发现，相同组成下，核壳胶乳比常规胶乳具有更好的综合性能。较好的体现了“粒子设计”与应用的结合。无皂乳液是一种比较新型的乳液聚合技术，利用离子型和非离子型的强亲水单体参与共聚，制备了高固含量、稳定的无皂胶乳，讨论了种子乳液聚合的影响因素及成核机理。无皂胶乳作为粘接剂使用时，讨论了软硬单体、功能单体及醋酸乙烯酯等对粘结性的影响。可聚合高

2、分子乳化剂用于环氧树脂的水性化改性，通过分子自组装，达到两相分离的目的，实现了涂层一次涂覆，满足防腐蚀和亲水性的双重效果，讨论了影响环氧树脂接枝改性的影响因素及涂膜防腐、亲水的影响因素。关键词：水性涂料核壳乳液聚合无皂乳液聚合改性StudyOnNewTechnologyofEmulsionPolymerizationABSTRACTWater-bornecoatingisallenvironment—friendlycoatingwithwatersexedassolventordispersingmedium．T

3、hiskindofcoatinghasthevirtueoflittlepollutionandconstructionsecurity．Withthedevelopmentofpolymerizationtechnology,theperformanceofwater-bornecoatingisclosetoorequaltotheperformanceoftraditionalcoatingusingorganicsolventservedaSdispersingmedium．Somoreandmoreatt

4、entionsareputtingtowater-bornecoating．Accordingtotheideaofparticledesign，wehavesynthesizedcore。shelllatex，andTgofcoreishigh，offeringcohesionintensity；TgofshellisverylOW,whichisimportantinformingfilmatroomtemperature，ThroughTEM，weobservedtheshapeofcore—shellpar

5、ticles，andwithDSC，weobservedtwonotableTg．Inaddition，wediscussedtheeffectofemulsifier,polymerizationprocessandtemperature，Comparingtotraditionallatex，core—shelllatexhasbetterperformance，evenwhenthecomponentofmonomerissanle．Soap-freeemulsionisanovelemulsionpolym

6、erization，withthecopolymerizingofioningandnomoningamphilicmonomer,wesynthesizedhighcontentandhi豇stabilitysoap—freelatex，anddiscussedtheeffectsonseedingemulsionpolymerizing，puttingforwardanewnucleationmechanism．Whenusedasadhesive，highTgandlowTgmonomer,functiona

7、lmonomerandVAcallhaveeffectsOUadhereability．Usingpolymerizablemacro—emulsifierinepoxymodifying，wecanobtaingraftingamphiphiliccopolymer．Thiscopolymercarlbeusedasanti—corruptionandhydrophiliccoating．Theeffectsongraftingefficiency,effectsonanti—corruptionandhydro

8、philichavebeendiscussedaccordingly．Keywords：water-bornecoatingcore·-shellemulsionpolymerizationsoap--freeemulsionpolymerizationmodifying合肥工业大学本论文经答辩委员会全体委员审查，确认符合合肥工业大学硕士学位论文质量要求。答