| 线型聚乙烯-丙烷体系在超临界条件下临界点的计算 |
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| 引用本文： | 谭立扬.线型聚乙烯-丙烷体系在超临界条件下临界点的计算[J].化工学报,1992,43(4):489-495. |
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| 作者姓名： | 谭立扬 |
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| 作者单位： | 北京工业大学环境化学系 北京100022 |
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| 摘 要： | 根据Koningsveld等人推广的Flory-Huggins关于高聚物溶液理论,提出了用聚乙烯-丙烷体系标样的超临界流体相平衡浊点线实验值来模拟计算临界点的方法.结果表明,该计算方法简便,计算结果与实验数据基本相符.
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| 关 键 词： | 聚乙烯 丙烷 浊点线 临界点 旋节线 |
CALCULATION OF CRITICAL POINTS FOR LINEAR POLYETHYLENE-PROPANE SYSTEM UNDER SUPERCRITICAL CONDITIONS |
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| Tan Liyang.CALCULATION OF CRITICAL POINTS FOR LINEAR POLYETHYLENE-PROPANE SYSTEM UNDER SUPERCRITICAL CONDITIONS[J].Journal of Chemical Industry and Engineering(China),1992,43(4):489-495. |
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| Authors: | Tan Liyang |
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| Abstract: | In terms of the Flory-Huggins' polymer solution theory as extended by Koningsveld and Kleintjens, an algorithm for calculating critical points based on experimental cloud point curves has been developed for the polyethylene-pfopane system. Results suggest that the method developed in this work can be easily used and the calculated critical points agree fairly well with the experimental data in the concentration range less than 10% (weight). In engineering design the method can be used to estimate critical points and cloud point curves in supercritical fluid fractionation of polymers (polyethylene-propane) . |
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| Keywords: | linear polyethylene-propane system supercritical condition cloud point critical point spinodal |
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