摘要： 以可再生的物质资源松节油、2,4－甲苯二异氰酸酯（TDI）、丙烯酸羟丙酯（HPA）为原料，合成了一系列紫外光固化松节油聚氨酯丙烯酸酯聚合物，研究了加料方式、原料配比、溶剂等对其流变行为的影响。实验结果表明，以丙烯酸羟丙酯（HPA）先与异氰酸酯反应，后加松节油聚酯多元醇（TP）的加料顺序，n（TDI）∶n（TP）∶n（HPA）＝2.5∶1∶2.7，选用丁酮为溶剂，可合成具有优良流动性和光固化性能的松节油紫外光固化树脂（TPUA）。

关键词: 紫外光固化, 聚氨酯丙烯酸酯, 松节油, 流变性

Abstract: A series of Uv-curable polyurethane acrylate polymers have been synthesized. The effect of molar ratio of raw waterials, feeding ways and solvents on the rhealogigal behavior was studied respectively. It showed that a Uv-curable resin with good fluidity and curing performance was synthesized based on turpentine polyester polyol(TP),TDI,HPA buy a unique feeding process, in which HPA was reacted with TDI first then incorporated with TP.

Key words: Uv-curable, polyurethane acrylate, turpentine, rheological property