本方法用璃玻纤维滤膜(GF)和聚氨酯泡沫塑料(PUF)采集焦炉逸散物中多环芳烃(PAH)。
A method for determination of PAH in coke oven emission is described. PAH aerosol were collected by glass fibre filter (GF) and polyurethane foam filter (PUF) simultaneously.
以淀粉乙二醇糖甙聚醚、多苯基多次甲基多异氰酸酯(PAPI)为主要原料，对聚氨酯硬质泡沫塑料的发泡工艺进行了研究。
A polyurethane (PU) rigid foam was prepared, using PAPI and the polyether polyols deried from starch ethylene glycol glycoside (EGG) as the main materials, and the foaming processing was studied.
本发明提供多异氰酸酯组合物及使用其的硬质聚氨酯泡沫的制造方法。
The invention provides an isocyanate composite and a preparation method for scleroid polyurethane foam using the same.
结果表明，在污水处理中，网状聚氨酯泡沫塑料附着的菌量多，是较好的新型微生物固定化载体。
The results showed that the reticulate PU foam had good property of biomass formation, and it was the preferable material for treating polluted water.
结果表明，在污水处理中，网状聚氨酯泡沫塑料附着的菌量多，是较好的新型微生物固定化载体。
The results showed that the reticulate PU foam had good property of biomass formation, and it was the preferable material for treating polluted water.
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