摘要
通过丙烯酸酯乳液成膜后的吸水率、耐溶剂性、硬度等性能的测试,研究了双丙酮丙烯酰胺和已二酸二酰肼常温交联体系,以及乳胶粒子的核壳结构对乳液成膜后胶膜性能的影响。实验发现,当双丙酮丙烯酰胺(DAAM)用量为单体总量的5%～7%,ADH用量为DAAM摩尔质量的0.3～0.5时,胶膜的耐水性和耐溶剂性最佳。
Using diacetone acrylamide（DAAM）as crosslinking agent, and styrene, methyl methacrylate, isobornyl methacrylate,butyl acrylate, ethyl hexyl acrylate, acrylic acid, methacrylic acid as monomers, a series of acrylic emulsion were synthesized by method of semi-continuous seeded polymerization. Influence of dosage of DAAM and adipic acid di hydrazide（ADH）, as well as＂core-shell＂ structure of emulsion particles on the hardness,water resistance, solvent resistance of films formed were studied. The films showed the best water and solvent resistance when the following condition were met： pH of the emulsion was about 5 - 10, DAAM was 5 - 7wt% of the whole comonomers, and mole ratio of ADH to DAAM was in the range of 0. 3-0.5,. Meanwhile,it＇s found that the acrylic resin with ＂soft core and hard shell＂ structure demonstrated better water resistance and higher hardness than ones with ＂hard core and soft shell＂structure.
出处
《化工新型材料》
CAS
CSCD
北大核心
2012年第6期136-139,共4页
New Chemical Materials
