| PDMS—PSF复合膜空分过程压力的影响 |
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| 引用本文： | 武法文,徐志红.PDMS—PSF复合膜空分过程压力的影响[J].广东化工,2009,36(12):25-27. |
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| 作者姓名： | 武法文 徐志红 |
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| 作者单位： | 1. 中国药科大学,制药工程教研室,江苏,南京,210009
2. 常熟华益化工有限公司,江苏,常熟,215556 |
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| 摘 要： | 采用L-S相转化法制备了聚砜（PSF）非对称膜，在其表面涂覆硅橡胶（PDMS）制备PDMS-PSF复合膜，进行空分富氧实验。实验结果表明：在室温、操作压力为0．6MPa的测试条件下，富氧浓度最高可达40．4％，相应的渗透通量为0．43×10^-10（m^3／m^2·s·Pa）。同时系统考察了操作压力对复合膜的富氧分离性能的影响，对气体在PDMS—PSF复合膜中渗透行为的压力相关性进行了定性分析。
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| 关 键 词： | PDMS-PSF复合膜 空气分离 压力相关性 |
Effect of Pressure on the Process of PDMS-PSF Composite Membranes for Air Separation |
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| Wu Fawen,Xu Zhihong.Effect of Pressure on the Process of PDMS-PSF Composite Membranes for Air Separation[J].Guangdong Chemical Industry,2009,36(12):25-27. |
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| Authors: | Wu Fawen Xu Zhihong |
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| Affiliation: | Wu Fawen1,Xu Zhihong2(1.Department of Pharmaceutical Engineering,China Pharmaceutical University,Nanjing 210009,2.Changshu Huayi Chemical Company,Changshu 215556,China) |
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| Abstract: | The asymmetric PSF （polysulfone） membrane was prepared by L-S phase inversion, and PDMS was coated on its surface to prepare the composite PDMS-PSF membrane. The membrane was used for air separation to enrich oxygen. The maximum oxygen concentration reached 40.4 %, and the corresponding oxygen-enriched air fiux was 0.43×10^-10 （m^3/m^2.s.Pa） with the operating pressure of 0.6 MPa at the ambient temperature. Meanwhile the effects of the operating pressure on the oxygen-enrichment performance of the composite PDMS-PSF membrane were investigated, and the pressure dependence of the gases permeation behaviors in the membrane were aoalyzed qualitatively. |
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| Keywords: | PDMS-PSF composite membrane air separation pressure dependence |
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