Study of Factors on Ethanol Resistance Stability of Water-Based Acrylic Resin Emulsion

摘要

Acrylic emulsion is the most widely used binder in water-based inks due to its low price, safety, resource and energy saving, and environmentally friendly. The stability of acrylic emulsion is one of the most basic and important performance. In the process of using water-based inks, a certain amount of ethanol is often added into inks to improve the drying rate, hence, excellent ethanol resistance stability is often needed for the emulsion. In this paper, acrylic resin emulsion with core-shell structure was prepared by means of semi-continuous seeded emulsion polymerization and pre-emulsification technology. Effects of emulsifier types, latex particle size, and chain transfer agent on stability of the emulsion, including polymerization stability and ethanol resistance stability, were investigated, which would provide an important guidance for the broad readships.