天津大学近期采用桐油为原料,研制出一种桐油基聚氨酯树脂,该研究以天然可再生原料替代石化原料的路线,具有重要的环境意义。此外,采用桐油制备或改性的聚氨酯作为涂料使用时,其漆膜硬度、耐水性等均得到提高。其工艺路线首先将桐油甲酯化,接着进行桐酸甲酯酸酐化,将所制得 Recently, Tianjin University used tung oil as a raw material to develop a tung oil-based polyurethane resin. This research replaces the route of petrochemical raw materials with natural renewable raw materials and has important environmental significance. In addition, the use of tung oil prepared or modified polyurethane as a paint when used, the film hardness, water resistance, etc. are improved. The process route first tung oil methyl esterification, followed by acid anhydride methyl acid, the prepared