采用同步法合成了预聚法丁腈羟聚氨酯/聚丙烯酸甲酯类互穿网络聚合物,研究了不同NCO基含量,不同组份比对聚合物抗张强度、剪切强度的影响,还以热失重方法对该体系的耐热性作了探讨。结果指出,聚合物的机械性能和耐热性皆比单一组成聚合物高,而且在组份比(PU/PMA)=8/2时机械性能有最大值,其协同效应显著。 The prepolymerized NBR / poly (methyl acrylate) interpenetrating polymer network was synthesized by the synchronous method. The effects of different NCO content and different components ratio on the tensile strength and shear strength of the polymer were also studied. Thermogravimetric method was used to investigate the heat resistance of the system. The results show that both the mechanical properties and the heat resistance of the polymer are higher than that of the single-component polymer, and the mechanical properties have the maximum value when the component ratio (PU / PMA) = 8/2, and the synergistic effect is remarkable.