Thfa modified acrylic resin and preparation method

The invention discloses a THFA modified acrylic resin and a preparation method thereof. The resin is characterized by comprising the following components by weight: 3% of acrylic acid, 15 to 20% of styrene, 15 to 20% of methyl methacrylate, 15 to 20% of butyl acrylate, 5% of maleic anhydride modified polyester resin, 5% of epoxy resin 601, 1 to 3% of tetrahydrofuran ester, 30 to 40% of solvent oil No. S-100, 0.1 to 0.5% of dibenzoyl peroxide and 0.01 to 0.02% of N,N-dimethylethanolamine. The invention has the following advantages: the THFA modified acrylic resin solves the disadvantages of epoxy resin, alkyd resin and common acrylic resin coatings, integrates the advantages of the above-mentioned resins, and has the characteristics of good adsorption force, strong salt spray resistance and weather resistance, etc.