可聚合乳化剂DNS-86对丙烯酸酯乳液稳定性的影响  

Influence of polymerizable emulsifier DNS-86 on water-based acrylic emulsion stability

作　　者：袁婷婷[1] 沈玲[1] 王汉峰 叶青[1] 管蓉[1] 

机构地区：[1]湖北大学化学化工学院,湖北武汉430062 [2]广州双键贸易有限公司,广东广州510700

出　　处：《粘接》2010年第9期63-66,共4页Adhesion

摘　　要：使用可聚合乳化剂烯丙氧基壬基酚丙醇聚氧乙烯(10)醚硫酸铵(DNS-86),通过半连续聚合工艺制备了水基丙烯酸酯乳液。考查了DNS-86对乳液的固含量、转化率、乳胶粒的大小及形态、Zeta电位以及各种稳定性(聚合稳定性、化学稳定性及冻融稳定性)的影响。与常规乳化剂十二烷基硫酸钠(SDS)制备的丙烯酸酯乳液性能进行了对比。结果表明,DNS-86因反应活性大,能与丙烯酸酯单体进行共聚,制得的乳胶粒大小均一,形态规整,乳液的稳定性得到改善。In this paper, the acrylate emulsions were systhesized by dropwise manner of monomers using the emulsifier allyloxy nonylphenol propyl polyoxyethylene （10） ether sulfate （DNS-86）, and then their properties were compared with the emulsions prepared with conventional emulsifier sodium dodecyl sulfate （SDS）. The effects of emulsifier DNS-86 on the solid content, conversion of monomers stability, size and morphology of emulsion particles and Zeta potential were investigated. The reason of affecting the stability of emulsion for polymerizable emulsifier DNS-86 was explored. The results showed that compared with the conventional emulsifier SDS, the emulsion stability is improved when the emulsifier DNS-86 is used.

关 键 词：丙烯酸酯乳液 可聚合乳化剂 ZETA电位 稳定性 

分 类 号：TQ314.255[化学工程—高聚物工业] TQ331.4