SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2016, Vol. 24 ›› Issue (1): 196-201.DOI: 10.1016/j.cjche.2015.12.014

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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   

  1. Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
  • Received:2015-02-05 Revised:2015-05-10 Online:2016-02-23 Published:2016-01-28
  • 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.

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   

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

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

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