技术要求: 目前,聚氨酯预聚物采用传统的间歇反应釜式生产工艺,反应后期通过真空脱除泡沫和部分游离的异氰酸酯单体。该工艺生产的聚氨酯预聚物产品的缺点是:1)预聚物气味大,对车间现场环境影响较大;2)预聚物稳定性差,在长时间加温后异氰酸酯质量分数下降,影响最终的制品性能。因此,我公 Technical requirements: At present, the polyurethane prepolymer using traditional batch reactor-type production process, the latter part of the reaction by vacuum to remove foam and part of the free isocyanate monomer. The shortcomings of the polyurethane prepolymer product produced by the process are as follows: 1) the smell of the prepolymer is large, which has a great influence on the on-site environment of the workshop; 2) the poor stability of the prepolymer and the decrease of the isocyanate mass fraction after prolonged heating affect the final Product performance. Therefore, I am male