Low-temperature-resistant water-based acrylic resin and preparation method thereof

The invention discloses low-temperature-resistant water-based acrylic resin which is prepared from the following components in parts by mass: 30-60 parts of lauryl sodium sulfate, 0.05-0.1 part of disodium EDTA, 40-60 parts of hyaluronic acid, 2000-3000 parts of butyl acrylate, 1000-1500 parts of ethyl acrylate, 50-100 parts of acrylic acid, 40-60 parts of a silane coupling agent, 30-50 parts of a nonionic emulsifier, 10-20 parts of an initiator, and 500-700 parts of deionized water. The invention also discloses a preparation method of the low-temperature-resistant water-based acrylic resin. Paint prepared from the water-based acrylic resin is excellent in film formation performance, and has excellent water resistance and low temperature resistance.