分别以松香聚醚多元醇(A),马来松香酯多元醇(B)为原料制备了松香基硬质聚氨酯泡沫塑料(RPFA,RPFB)。考察了2种多元醇的反应活性和发泡行为,通过TGA对RPFA,RPFB的热性能进行了研究,并与工业聚醚4110及其制得的泡沫塑料(RPFC)进行了对比,结果表明,多元醇反应活性顺序依次为B>A>工业聚醚4110;RPFA,RPFB和RPFC的热分解活化能分别为89.17,82.66和57.65kJ/mol。松香环状结构的引入提高了多元醇的反应活性及泡沫材料的耐热性。 Rosin-based rigid polyurethane foam (RPFA, RPFB) was prepared from rosin polyether polyol (A) and maleyl rosin polyol (B) respectively. The reactivity and foaming behavior of two kinds of polyols were investigated. The thermal properties of RPFA and RPFB were studied by TGA. The results were compared with that of industrial polyether 4110 and RPFC. The order of reaction of polyols was B> A> industrial polyether 4110; the thermal decomposition activation energies of RPFA, RPFB and RPFC were 89.17, 82.66 and 57.65 kJ / mol, respectively. The introduction of the rosin ring structure improves the reactivity of the polyol and the heat resistance of the foam.