并对大坝的保温方案进行分析，最后采用硬质发泡沫聚氨酯保温方案对大坝坝面进行保温。
The scheme of spraying the hard foaming polyurethane is chosen to heat insulated of the dam.
酚醛泡沫资料属高分子有机硬质铝箔泡沫商品，是由热固性酚醛树酯发泡而成。
Phenolic foam material is a kind of polymer organic hard aluminum foil foam products, is made of thermosetting phenolic resin foam.
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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