首先通过筛选树脂合成原料中植物油酸、多元酸、多元醇以及催化剂的种类和加量,对醇酸树脂进行改性。其次对石油树脂再进行改性,通过化学接枝法将石油树脂接于醇酸树脂大分子上,从而提高涂料耐人工老化性能和稳定性。制备的产品符合GB/T 25251—2010《醇酸树脂涂料》中调合漆的各项指标。

Firstly modified the alkyd resin by screening the types and dosages of vegetable oleic acids,polybasic acids,polyols and catalysts in the synthetic raw materials of resin,and then further modified the petroleum resin by grafting it to alkyd resin macromolecules with chemical grafting method,so as to improve the stability and artificial aging resistance of the coating.The prepared product conforms to various indicators of ready-mixed paint in GB/T 25251—2010 Alkyd Resin Coatings.