Quick-drying room temperature curing waterborne epoxy resin curing agent and preparation method thereof

The invention relates to the technical field of chemical paints and particularly discloses a quick-drying room temperature curing waterborne epoxy resin curing agent and a preparation method thereof. The method comprises the following steps: mixing liquid epoxy resins, polyether containing epoxy groups on both ends or the mixture of polyether containing epoxy groups on one end and polyether containing epoxy groups on both ends with a bisphenol compound to react at 150-200 DEG C under the action of a catalyst and generate an intermediate, then using the intermediate and amine to react, performing reduced pressure distillation to remove excess amine and the solvent, cooling the obtained resins to 60-90 DEG C, and dropwise adding deionized water to obtain the amber or light yellow quick-drying room temperature curing waterborne epoxy resin curing agent. The waterborne epoxy resin curing agent has simple production process flow, the surface drying time for curing the epoxy resin emulsion is shorter, and the working life is longer; and the epoxy resin film cured by using the curing agent has excellent performance. The waterborne epoxy resin curing agent is suitable for waterborne paints, waterborne adhesives and the like; and for example, the curing agent can be used as a flooring paint, an industrial protective paint and a furniture adhesive.