The influence of some raw materials such as polyester,the uniformity,vesicant foams and catalysts to the preparation of rigid polyurethanes foam is also discussed.

• 探讨了聚酯多元醇、泡沫稳定剂、发泡剂及催化剂等原料对硬质聚氨酯泡沫塑料制备的影响。