羧甲基纤维素钠为稳定剂的无皂Pickering丙烯酸酯乳液表面施胶剂的合成  

Synthesis of Soap Free Pickering Acrylate Emulsion with Sodium Carboxymethyl Cellulose as Stabilizing Agent

作　　者：张恒[1,2] 宋雪[1] 李鹏飞[1] 孙嘉浩 Zhang Heng Song Xue Li Peng-fei Sun Jia-hao(College of Chemical Engineering, Qingdao University of Science ＆ Technology, Qingdao 266042, Shandong, China State Key Laboratory of Pulp and Paper Engineering ,South China University of Technology ,Guangzhou 510640,Guangdong,China)

机构地区：[1]青岛科技大学化工学院,山东青岛266042 [2]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《造纸科学与技术》2016年第5期28-33,共6页Paper Science & Technology

基　　金：山东省科技重大专项(产业转型升级)(2015ZDZX11011);制浆造纸工程国家重点实验室开放基金(201474)

摘　　要：本文研究了以甲基丙烯酸甲酯、丙烯酸丁酯为软硬单体、丙烯酸为功能单体,羧甲基纤维素钠CMC-Na为稳定剂,采用无皂乳液聚合的方法,制备Pickering丙烯酸酯乳液。首先考察了不同配比的CMC-Na对丙烯酸酯乳液性能的影响,然后测定了羧甲基纤维素钠的接触角,并对合成的乳液进行了红外表征,最终得到羧甲基纤维素钠的接触角为36.59°,并且在羧甲基纤维素钠的配比为3%时,乳液的固含量为24.12%,转化率为96.49%,粒径为152nm,施胶度为37s,此时制得的丙烯酸酯乳液的稳定性和抗水性最佳。This paper mainly studied the soap free emulsion polymerization of methyl methacrylate as hard monomer,butyl acrylate as soft monomer,acrylic acid as functional monomer,sodium carboxymethyl cellulose（ CMC- Na） as protective colloid,Pickering emulsion were prepared. The contact angle of sodium carboxymethyl cellulose was determined,and the effects of different concentrations of CMC- Na on the properties of acrylate emulsion were examined. The emulsion was also characterized. The contact angle of sodium carboxymethyl cellulose was 36. 59°. When the ratio of carboxymethyl cellulose was 3%,the solid content of emulsion was 24. 12%,the conversion rate was 96. 49%,the particle size was 152 nm,and the sizing degree was 37 s. At that time,the stability and water resistance of acrylate emulsion were the best.

关 键 词：无皂乳液聚合 羧甲基纤维素钠 稳定剂 PICKERING 丙烯酸酯乳液 

分 类 号：TQ316.33[化学工程—高聚物工业]