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酚醛树脂基炭膜的制备与性能研究 被引量：2

Preparation of Phenolic-resin-based Carbon Membrane and Its Separation Performance
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摘要 采用真空涂膜法,以一定浓度的商用酚醛树脂为前驱体在多孔陶瓷管上制备复合炭膜,并考察真空度对复合膜气体渗透性能的影响。结果表明,采用真空法可以在载体表面形成均匀的炭膜,而传统提拉法较难获得连续的炭膜,涂膜真空度为0.6MPa更利于高性能炭膜的制备。对真空法制备的炭膜进行单组份气体渗透测试,发现随着涂膜真空度的增加,复合膜的气体渗透速率显著减低,而理想选择性出现峰值。等摩尔CO2/CH4混合气的渗透测试发现:室温下炭膜的CO2渗透速率达到1.4×10-7mol.Pa-1.m-2.s-1,αCO2/CH4达到48.3,高于其努森值。扫描电镜测试表明,此复合膜表面均匀、连续,膜厚度大约4μm,与载体结合紧密。 Vacuum-assisted coating（VC） was employed to prepare carbon membrane on porous α-Al2O3 tube using commercial phenol resin as precursor,and the effect of vacuum degree was investigated.Results showed that the VC method was more effective（vacuum degree = 0.6 MPa） for the preparation of uniform carbon membrane compared with the conventional method.Single-gas permeation test indicated that with the increase of vacuum degree,the gas permeance decreased and the selectivity exhibited the maximum.The CO2/CH4（50/50） mixture permeation test showed that the carbon membrane had CO2 permeance of 1.4×10-7 mol·Pa-1·m-2·s-1 and CO2/CH4 selectivity of 48.3,higher than the Knudsen value.The scanning electron microscope revealed that the membrane was dense,continuous,with a thickness of 4 μm.
作者 杨立军 张金海
机构地区 沈阳农业大学高职学院
出处 《沈阳农业大学学报》 CAS CSCD 北大核心 2011年第2期247-250,共4页 Journal of Shenyang Agricultural University
关键词 酚醛树脂 炭膜 真空辅助 气体分离 phenol ic-resin carbon membrane vacuum-assisted gas separation
分类号 O61 [理学—无机化学]
  • 相关文献

参考文献11

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二级参考文献29

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共引文献12

同被引文献11

  • 1张兵,王同华,呼立红,曹义鸣,邱介山.聚酰亚胺基气体分离炭膜的进展[J].膜科学与技术,2007,27(5):97-101. 被引量：13
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引证文献2

沈阳农业大学学报
2011年 第2期

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