本文论述了用机械发泡法制备聚乙烯醇缩甲醛泡沫塑料的工艺及其影响因素。
The preparation technology and its effect factors for polyvinyl formal foam plastic by way of mechanical foaming method were studied.
介绍了硬质聚氨酯泡沫塑料全水发泡工艺的基本原理。
Introduced the rigid polyurethane foam plastics entire water foaming craft basic principle.
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。
The influence of some raw materials such as polyester the uniformity vesica nt foams and catalysts to the preparation of rigid polyurethanes foam is also discussed.
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