摘要： 采用种子预乳化半连续法，合成了固含量高的阳离子型聚丙烯酸酯乳液。考察了在乳液聚合中反应性乳 化剂、引发剂种类及功能单体含量对乳液聚合稳定性及乳液性能的影响。结果表明:在乳液聚合体系中，功能单体 HEA含量为1%最佳;合理的反应性乳化剂用量及加入方式可使乳液固含量达到41%;选用AIBN与BPO复配的引发剂制备的乳液性能良好。

关键词: 水性涂料;阳离子型;丙烯酸酯乳液;乳液聚合

Abstract: The cationic polyacrylate latex with high solid content were synthesized by seeding semi-continuous emulsion polymerization. The influence of reactive emulsifier, types of initiator and the function mon-omer content on emulsion polymerization stabilities and properties of emulsion were studied in emulsion poly merization reaction. The results suggested that the optimum content of function monomer HEA was 1. The latex solid content reached the criteria of 41% by use of reasonable reactive emulsifier content and feeding mode. The properties of emulsion, when the latex was made by using AIBN and BPO compound initiator system, were good.

Key words: waterborne coatings; cationic; acrylic latex; emulsion polymerization