Enhanced gas transport properties in silica nanoparticle filler-polystyrene nanocomposite membranes

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• 作者：Mahmoud Salimi ; Vahid Pirouzfar ; Ehsan Kianfar
• 关键词：Nanocomposite membranes ; Gas separation performance ; HPS ; Silica nanoparticles ; Permeability ; Selectivity
• 刊名：Colloid and Polymer Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：295
• 期：1
• 页码：215-226
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences; Soft and Granular Matter, Complex Fluids and Microfluidics; Characterization and Evaluation of Materials; Physical Chemistry; Food Science; Nanotechnology and Microengineering;
• 出版者：Springer Berlin Heidelberg
• ISSN：1435-1536
• 卷排序：295

文摘

In this paper, first, the pure dense membrane by polystyrene was made through the solution casting method at various concentrations and then the silica nanoparticles were added in different weight percentages to the pure membrane. The best permeability result for CO₂ and N₂ in pure polymer membrane was achieved in concentration of 10 wt% of high-impact polystyrene (HPS). Also, the impact of increasing the pressure of the tested gases was examined on permeability and selectivity of nanocomposite membrane. The results indicated, with the pressure increasing, the permeability coefficient of tested gases is reduced. The best selectivity of CO₂ to N₂ was obtained in nanocomposite membrane containing 4 wt% silica nanoparticles in HPS.