反应性乳化剂在聚醋酸乙烯乳液中的应用研究  

Application on Reactive Emulsifier in Polyvinyl Acetate Emulsion Polymerization

作　　者：匡佳 崔一鸣[1] 于广明[1] 李晓俊[1] 刘海英[1] 

机构地区：[1]东北林业大学,黑龙江哈尔滨150000

出　　处：《广东化工》2016年第11期8-9,共2页Guangdong Chemical Industry

摘　　要：采用半连续种子乳液聚合法,以2-丙烯酰胺基-2甲基丙烷磺酸钠盐(AMPS-Na)为乳化剂,合成了改性聚醋酸乙烯酯乳液。探讨了反应性乳化剂AMPS-Na和保护胶体PVA两者对乳液聚合稳定性的影响,对乳液的固含量、黏度、压缩剪切强度和粒径进行了表征。结果表明:AMPS-Na用量在0.4%时,乳液综合性能良好;固含量为38.54%,黏度476.0 m Pa·s,压缩剪切强度为14.44 MPa,乳液粒径34.5 nm。Polyvinyl Acetate Emulsion were prepared by semicontinuous seeding emulsion polymerization technology. Using 2-acrylamido-2-methyl propane sulfonic acid sodium salt（AMPS-Na）as reactive emulsifier. Studying the effect of reactive emulsifier AMPS-Na and protective colloid PVA on the stability of emulsion polymerization, solid content, viscosity, compression shear strength and particle size of the emulsion were analyzed. The research results show that emulsion＇s combination property were good when the amount of AMPS-Na is 0.4 %. Its solid content was 38.54 %, viscosity reached to 476.0 mPa＇S and compression shear strength was 14.44 MPa. And the Particle size was 34.5 nm.

关 键 词：聚醋酸乙烯酯 乳液聚合 反应性乳化剂 

分 类 号：TQ433.433[化学工程]