引用本文:
叶树集, 陈鸣才, 胡红旗, 郭元强. 超临界二氧化碳中聚氨酯吸附小分子的影响因素[J]. 物理化学学报,
2000, 16(04): 345-350.
doi:
10.3866/PKU.WHXB20000410
Citation: Ye Shu-Ji, Chen Ming-Cai, Hu Hong-Qi, Guo Yuan-Qiang. Effects on the Absorption of Small Molecules into Polyurethane in Supercritical Carbon Dioxide[J]. Acta Physico-Chimica Sinica, 2000, 16(04): 345-350. doi: 10.3866/PKU.WHXB20000410
Citation: Ye Shu-Ji, Chen Ming-Cai, Hu Hong-Qi, Guo Yuan-Qiang. Effects on the Absorption of Small Molecules into Polyurethane in Supercritical Carbon Dioxide[J]. Acta Physico-Chimica Sinica, 2000, 16(04): 345-350. doi: 10.3866/PKU.WHXB20000410
超临界二氧化碳中聚氨酯吸附小分子的影响因素
English
Effects on the Absorption of Small Molecules into Polyurethane in Supercritical Carbon Dioxide
Abstract:
A systematic study about the absorption of small molecules into polyurethane was undertaken in supercritical carbon dioxide. Changes in mass of PU were given in terms of the changes of factors such as decompression time, solubility parameter, electrophilic and aromatic character of small molecules. The effect of specific evaporation velocity of small molecules on desorption was observed. The results showed that polyurethane is easy to absorb electrophilic and aromatic compounds. The more rapid its specific evaporation velocity is, the faster the small molecule is desorbed.
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Key words:
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Supercritical carbon dioxide
- / Polyurethane
- / Absorption
- / Effect
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