微流控技术制备聚酰胺微胶囊的工艺研究

摘要针对聚酰胺微胶囊的制备，设计制作了简易微通道，以对苯二甲酰氯和1，6-己二胺、二乙烯三胺为壁材，吐温80为表面活性剂，聚乙烯醇（PVA）为保护胶体，采用界面聚合法制备出单分散（分散系数<5%）聚酰胺微胶囊。所制备的聚酰胺微胶囊的分散系数ε在0.2%~0.5%范围内，且具有良好的球形度。对影响聚酰胺微胶囊粒径和分布的因素进行了研究，结果表明：随着吐温80和聚乙烯醇用量的增加，连续相流量增大和分散相流量的减小，聚酰胺微胶囊粒径减小、分布变窄。

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	王彦
	王靖涛

关键词：微胶囊；聚酰胺；界面聚合；微通道

Abstract： In order to prepare polyamide microcapsules, a simple T microchannel was designed. Monodispersed (coefficient of variation ε<5%) polyamide microcapsules were prepared by interfacial polymerization using terephthaloyl chloride and 1,6-hexamethylenediamine, diethylenetriamine as the wall materials, Tween80 as surface active agent and polyvinyl alcohol as protective colloid. The polyamide microcapsules have good sphericity and their coefficient of variation ε is between 0.2% and 0.5%. The influence factors on the polyamide microcapsules size and distribution were investigated. The results show that with increasing amount of Tween80 and polyvinyl alcohol, the increasing flow rate of the continuous phase and the decreasing flow rate of the dispersed phase, the particle size of the polyamide microcapsules decrease and the distribution range becomes narrow.

Keywords： microcapsules； polyamide； interfacial polymerization； microchannel

Received 2016-10-26;

Fund:国家重点基础研究规划项目（2012CB720305）。

Corresponding Authors: 王靖涛,E-mail:wjingtao928@tju.edu.cn Email: wjingtao928@tju.edu.cn

About author: 王彦(1988-),女,硕士研究生,主要从事微胶囊制备的研究。

引用本文:

王彦, 王靖涛.微流控技术制备聚酰胺微胶囊的工艺研究[J]. 化学工业与工程, 2018,35(6): 20-25

Wang Yan, Wang Jingtao.Preparation of Polyamide Microcapsules Based on Microfluidics[J]. Chemcial Industry and Engineering, 2018,35(6): 20-25

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