Permeation and sorption properties of poly(ether-block-amide) membranes filled by two types of zeolites

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• 作者：Karel Friess^a ; Vladim&#xed ; r Hynek^a ; Milan Š ; &#xed ; pek^a ; Wojciech M. Kujawski^b ; ^{kujawski@chem.umk.pl" rel="nofollow} ; Ondř ; ej Vopič ; ka^a ; Miroslav Zgaž ; ar^a ; Maciej W. Kujawski^c
• 关键词：PEBA membranes ; Zeolite fillers ; Gases ; VOCs
• 刊名：Separation and Purification Technology
• 出版年：2011
• 出版时间：18 August 2011
• 年：2011
• 卷：80
• 期：3
• 页码：418-427
• 全文大小：1184 K
• ISSN：S138358661100236X

文摘

The experimental study of transport properties of mixed matrix membranes (MMMs) based on PEBA-4033 with two types of zeolites is reported. Gas (CO₂, O₂, N₂) and vapor (benzene, toluene, methanol, water) permeation measurements were performed using the differential flow permeameter at temperature of 298.15 K and at atmospheric pressure. Gas/vapor permeation was monitored by measuring the changes of the thermal conductivity of carrier gas (H₂). Sorption experiments were performed gravimetrically. Determined values of the transport parameters (permeability, diffusion and sorption coefficients) of all studied vapors revealed expected high-order permeability of PEBA based membranes for vapors in comparison with gases whereas increasing of zeolite-filler content up to 30 wt.% in polymer matrix led to higher values of permeability and gas/gas and vapor/gas selectivity in comparison with pure polymer.