| 超临界二氧化碳中聚氨酯对小分子的吸附作用 |
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| 引用本文： | 叶树集,陈鸣才,黄玉惠,丛广民. 超临界二氧化碳中聚氨酯对小分子的吸附作用[J]. 物理化学学报, 2000, 16(2): 145-152. DOI: 10.3866/PKU.WHXB20000210 |
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| 作者姓名： | 叶树集 陈鸣才 黄玉惠 丛广民 |
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| 作者单位： | Guangzhou Institute of Chemistry,Academia Sinica,Guangzhou 510650 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 研究了超临界ＣＯ２中聚氨酯对乙醇、麝香草酚和β－苯乙醇等小分子的吸附作用，观测了超临界ＣＯ２的温度、压力、吸附时间和聚氨酯厚度对小分子吸附量的影响以及小分子在聚氨酯中的释放规律，并探讨了小分子的渗透机理。
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| 关 键 词： | 超临界CO2 聚氨酯 吸附量 渗透机理 |
| 收稿时间： | 1999-05-31 |
| 修稿时间： | 1999-05-31 |
Absorption of Small Molecules into Polyurethane in Supercritical Carbon Dioxide |
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| Ye Shuji,Chen Mingcai,Huang Yuhui,Cong Guangmin. Absorption of Small Molecules into Polyurethane in Supercritical Carbon Dioxide[J]. Acta Physico-Chimica Sinica, 2000, 16(2): 145-152. DOI: 10.3866/PKU.WHXB20000210 |
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| Authors: | Ye Shuji Chen Mingcai Huang Yuhui Cong Guangmin |
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| Affiliation: | Guangzhou Institute of Chemistry,Academia Sinica,Guangzhou 510650 |
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| Abstract: | A systematic study was undertaken in supercritical carbon dioxide to absorb thymol, benzyl carbinol and alcohol into polyurethane by a simple gravimetric method.The uptake of small molecule in PU had been observed with the changes of the factors such as temperature, pressure of supercritical carbon dioxide,absorption time and dimension of PU. Moreover, the mass change of PU after treatment was observed and the impregnation mechanism of small molecule was discussed to explain the experimental results. |
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| Keywords: | Supercritical carbon dioxide Polyurethane Absorption amount Impregnation mechanism |
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