Preparation and properties of nonionic waterborne epoxy resin

Most waterborne epoxy resin emulsifiers are inactive, and the free emulsifier will precipitate out during the curing of the coating film, which will seriously affect the water resistance, solvent resistance, and hardness of the coating film. Herein we prepared a new type of nonionic active epoxy emulsifier. First, 1,4‐butanediol diglycidyl ether reacts with polyethylene glycol at a higher temperature to form an epoxy‐terminated modified...