陕西科技大学学报（自然科学版）2005，Vol.23Issue(5)：12-18,7.
保护胶体对三聚氰胺甲醛树脂微胶囊成囊性影响的研究
EFFECTS OF PROTECTIVE COLLOID ON THE MELAMINE FORMALDEHYDE RESIN MICRO-ENCAPSULATION
甄朝晖 1陈中豪1
作者信息
- 1. 华南理工大学造纸与污染控制国家工程研究中心,广州,510640
- 折叠
摘要
Abstract
With styrene maleic anhydride copolymer (SMA) as the protective colloid, the mechanism of the emulsification and micro-encapsulation in the in situ polymerization of melamine formaldehyde resin microcapsules was studied. The results indicated that the pH value and the dosage of the protective colloid had important effects on zeta value and encapsulation in the process of in-situ polymerization. Emulsification time and stirring rate influenced the capsule preparation, mean particle size and particle size distribution of microcapsules. The process of the emulsification was the formation of electric double layer. The primary action of the protective colloid is the stable emulsification and electron charge effect,which can efficiently make the wall material to deposit and polymerize on the surface of droplet, and to prevent the side reaction in the water phase.关键词
微胶囊/保护胶体/蜜胺甲醛树脂/原位聚合Key words
microcapsules/protective colloid/melamine formaldehyde resin/in situ polymerization分类
化学化工引用本文复制引用
甄朝晖,陈中豪..保护胶体对三聚氰胺甲醛树脂微胶囊成囊性影响的研究[J].陕西科技大学学报（自然科学版）,2005,23(5):12-18,7.
