核壳结构丙烯酸酯乳液合成及其木器封闭底漆的制备  

Preparation of Acrylic Latex of Core-shell Structure and Its Use in Waterborne Wood Sealing Primer

作　　者：闫福安[1] 黄贵[1] 谢浩[1] 

机构地区：[1]武汉工程大学化工与制药学院,武汉430073

出　　处：《中国涂料》2011年第5期36-39,57,共5页China Coatings

摘　　要：采用种子乳液聚合法合成了核壳结构丙烯酸酯乳液。研究了乳化剂、单体质量在核壳两阶段聚合中的分配、长链丙烯酸酯单体及交联单体对乳液涂膜性能的影响。试验发现:乳化剂在核壳两相分配比例为4∶3最佳,单体质量分配比例为4∶6最佳;长链丙烯酸酯单体与交联单体能提高涂膜耐水性和耐溶剂性,但有一定的适用范围;用该丙烯酸酯乳液及合适助剂配制的水性木器封闭底漆,对底材封闭性良好。Acrylic latex with core-shell structure is synthesized through seed emulsion polymerization.This paper studies the influence of the emulsifier,the mass distribution of emulsifier and monomer in core and shell polymerization stages,the long-chain acrylic monomer and cross-linking monomer on the performance of latex film.It is found that the best mass ratio of emulsifier in core and shell phase is 4∶3 and the best monomer mass ratio in core and shell is 4∶6;Long chain monomer and crosslinking monomer can increase the water and solvent resistance in certain range;with suitable additives,the acrylic latex can give waterborne wood sealing primer of good sealing performance for wood substrates.

关 键 词：丙烯酸酯乳液 核壳结构 交联单体 封闭底漆 

分 类 号：TQ630[化学工程—精细化工]