自交联丙烯酸弹性乳液的合成研究及应用

摘要

利用双丙酮丙烯酰胺（DAAM）和己二酸二酰肼（ADH）,合成了一种自交联丙烯酸弹性乳液,研究和分析了交联单体添加量、乳液玻璃化温度、乳化剂和引发剂及其加量对乳液及其弹性涂料性能的影响。研究表明,交联单体添加1.5%～2.0%,乳液玻璃化温度为-35～-25℃,乳化剂采用反应型和阴离子复配的乳化剂,其添加量为1.5%～2.0%,并使用过硫酸盐引发剂,其添加量为0.5%～1.0%,采用种子乳液聚合工艺,合成的乳液性能最好,制备的弹性涂料具有优异的力学性能和高耐沾污性。%Diacetone acrylamide（DAAM） and adipic dihydrazide（ADH） are used to synthesize the self-crosslinkage acrylic elastomer emulsion. This paper studies and analyzes the influence of cross-linking agent amount, emulsion glass transition temperature, emulsifi er and initiator and their amount on the properties of the emulsion and the elastomer coatings. The study shows that, with the crosslinking monomer of 1.5%～2.0%, emulsion glass transition temperature of -35～-25℃, emulsifier of reactive and anionic composite of 1.5%～2.0%, initiator of persulfate of 0.5%～1.0%, and seeded emulsion polymerization technology, the prepared emulsion is the best and the elastomer coatings are of excellent mechanical properties and high stain resistance.