期刊
JOURNAL OF MEMBRANE SCIENCE
卷 531, 期 -, 页码 129-137出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2017.02.048
关键词
Composite membrane; CO2 separation; Poly (ethylene oxide); Cross-linking; Photopolymerization
资金
- National Natural Science Foundation of China [21206121, 21506160]
- Tianjin Research Program of Application Foundation and Advanced Technology [14JCQNJC06400]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry [48]
- Tianjin Training Program of Innovation and Entrepreneurship for Undergraduates [201510058067]
- Science and Technology Plans of Tianjin [15PTSYJC00230]
The composite membrane with high CO2 permeance and high CO2/N-2 selectivity was synthesized by UV-initiated free radical photopolymerization. Both supporting layer and selective layer were fabricated through photopolymerization. The supporting layer was synthesized by poly (ethylene glycol) diacrylate as monomer and polyethylene glycol as pore-forming additive, while the selective layer was synthesized by poly (ethylene glycol) methyl ether acrylate as monomer and dipentaerythritol hexaacrylate as cross-linker. The morphology, chemical structures and gas transport properties of the composite membranes were investigated by different techniques. Resulted composite membranes had defect-free selective layers with high CO2/N-2 selectivity, ranging from 38.8 to 40.9, which were close to the intrinsic selectivity for the selective layer material. In addition, it is found out that the selective layer thickness and permeance were affected severely by varying the consumption of coating solution. The selective layer thickness decreased with the decrement of coating solution consumption, changing from 4.15 to 0.62 mu m, which led to a significant increase in CO2 permeance, ranging from 182 to 1889 GPU (25 degrees C, 0.2 MPa).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据