Effect of ionic liquids on stability of O/W miniemulsion for application of low emission coating products

doi:10.1016/j.cjche.2015.12.014

Chinese Journal of Chemical Engineering ›› 2016, Vol. 24 ›› Issue (1): 196-201.DOI: 10.1016/j.cjche.2015.12.014

• 第25届中国过程控制会议专栏 • 上一篇下一篇

Effect of ionic liquids on stability of O/W miniemulsion for application of low emission coating products

Yiyang Kong, Binjie Hu, Yanqing Guo, Yifan Wu

Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China

收稿日期:2015-02-05 修回日期:2015-05-10 出版日期:2016-01-28 发布日期:2016-02-23
通讯作者: Binjie Hu
基金资助:
One of the authors would like to acknowledge the Low Carbon Automation Manufacture Innovation Team 2011B81006 for the PhD studentship and Ningbo Natural Science Foundation funding 2012A610094.

Effect of ionic liquids on stability of O/W miniemulsion for application of low emission coating products

Yiyang Kong, Binjie Hu, Yanqing Guo, Yifan Wu

Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China

Received:2015-02-05 Revised:2015-05-10 Online:2016-01-28 Published:2016-02-23
Contact: Binjie Hu
Supported by:
One of the authors would like to acknowledge the Low Carbon Automation Manufacture Innovation Team 2011B81006 for the PhD studentship and Ningbo Natural Science Foundation funding 2012A610094.

摘要/Abstract

摘要： Room temperature ionic liquids (RTILs) are non-volatile organic salts. They may replace conventional coalescing agents in latex coating thus reducing volatile organic compounds (VOCs) emission as well as improving performance of latex coating products such as better thermal stability, conductivity, and antifouling property. The formation of latex coating containing RTILs can be achieved by encapsulation of RTILs inside particles via miniemulsion polymerization. In this study, the role of RTILs and its concentration on stability of miniemulsion during storage and polymerization were investigated. It has been found that, above a critical concentration (10 wt%), adding more RTILs to oil phase may weaken miniemulsion stability during storage aswell as polymerization. Such observations were consistent with the zeta potential measurement for miniemulsions prepared at the similar conditions. The results obtained here would be a useful guideline for the development of new waterborne coating products with desirable functions and particle sizes.

关键词: Room temperature ionic liquids, Miniemulsion polymerization, Volatile organic compounds, Zeta potential

Abstract: Room temperature ionic liquids (RTILs) are non-volatile organic salts. They may replace conventional coalescing agents in latex coating thus reducing volatile organic compounds (VOCs) emission as well as improving performance of latex coating products such as better thermal stability, conductivity, and antifouling property. The formation of latex coating containing RTILs can be achieved by encapsulation of RTILs inside particles via miniemulsion polymerization. In this study, the role of RTILs and its concentration on stability of miniemulsion during storage and polymerization were investigated. It has been found that, above a critical concentration (10 wt%), adding more RTILs to oil phase may weaken miniemulsion stability during storage aswell as polymerization. Such observations were consistent with the zeta potential measurement for miniemulsions prepared at the similar conditions. The results obtained here would be a useful guideline for the development of new waterborne coating products with desirable functions and particle sizes.

Key words: Room temperature ionic liquids, Miniemulsion polymerization, Volatile organic compounds, Zeta potential

Yiyang Kong, Binjie Hu, Yanqing Guo, Yifan Wu. Effect of ionic liquids on stability of O/W miniemulsion for application of low emission coating products[J]. Chinese Journal of Chemical Engineering, 2016, 24(1): 196-201.

Yiyang Kong, Binjie Hu, Yanqing Guo, Yifan Wu. Effect of ionic liquids on stability of O/W miniemulsion for application of low emission coating products[J]. Chin.J.Chem.Eng., 2016, 24(1): 196-201.

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Effect of ionic liquids on stability of O/W miniemulsion for application of low emission coating products

Effect of ionic liquids on stability of O/W miniemulsion for application of low emission coating products

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