丙烯酸酯乳液是聚合物乳液中的一大主要类别，由于其优越的成膜性、良好的耐

丙烯酸酯乳液是聚合物乳液中的一大主要类别，由于其优越的成膜性、良好的耐水性和耐候性，优良的粘结性，受到人们的重视。在实际生产过程中，由于聚合工艺的波动使乳液聚合反应变得十分复杂，使聚合工艺指标的控制更为困难，因而影响聚合反应的稳定进行及影响产品的结构和性能。乳液的粒径及其分布对最终产品的性能有重要影响。
本课题重点研究通过研究乳液聚合的粒径及粒径分布。通过工艺因素（单体选择、电解质、乳化剂和引发剂的选择及用量、反应温度、单体质量比、搅拌速度、种子乳液的用量、预乳液的控制条件等）和工程因素（搅拌器类型及尺寸和反应釜尺寸）的两个方面的影响，以及乳液聚合过程在线粒径测试进行研究。用粒度仪测其粒度，TEM、SEM观察粒子形貌，并用DSC测其玻璃化温度。最后将乳液制成涂膜，研究粒度对涂膜性能（光泽度、耐溶剂性、耐水性、耐候性等）的影响。
关键词：丙烯酸乳液；粒径及粒径分布；涂层性能

結果 (中文) 2:

Acrylate emulsion polymer emulsion is one of the main categories, because of its excellent film-forming property, good water resistance and weather resistance, excellent adhesion, attention.In the actual production process, due to the fluctuation of polymerization emulsion polymerization is very complex, so that the polymerization process index control more difficult, thus affecting the polymerization stability and the influence of product structure and performance.Emulsion particle size and its distribution on the performance of the final product has important implications.
focus on the subject through the study of emulsion polymerization of particle size and particle size distribution.The process factors (monomer selection, electrolyte,Emulsifier and initiator amount and selection, reaction temperature, monomer mass ratio, stirring speed, the amount of seed emulsion, the emulsion control condition) and the engineering factor (stirrer type and size and reactor size) of the two aspects of the impact, as well as the emulsion polymerization process of on-line particle size testing research.By measuring the particle size, TEM, SEM observation of particle morphology, and DSC measurement of the glass transition temperature of.The final will be made on film emulsion, particle size on the properties of coating film (gloss, solvent resistance, water resistance, weatherability, etc.) effect.
key words: acrylic emulsion; particle size and particle size distribution of coating performance
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