Abstract

An experimental evaluation of the humidity effect of gases (nitrogen, methane, and carbon dioxide) on their permeability through poly(vinyltrimethylsilane) and quaternized chitosan membranes using a specially designed experimental setup has been performed in this work. The experimental unit has been additionally equipped with a moisture generator and an analytical complex including an electronic hygrometer coupled with a gas chromatographic TCD system. The gas humidity values were obtained before and after the separation on polymeric membrane. It has been experimentally shown that the PVTMS membrane in the presence of water vapor (up to 2.5 vol %) provides the stability of gas transport characteristics. The permeability of moist gases through the quaternized chitosan membrane has been significantly reduced due to the high affinity of the polymer to water vapor and this material provides the high water vapor permeability.

中文翻译：

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水分存在对聚（乙烯基三甲基硅烷）和季铵化壳聚糖气体分离膜透气性的影响

摘要

在这项工作中，使用特殊设计的实验装置对气体（氮气，甲烷和二氧化碳）通过聚（乙烯基三甲基硅烷）和季铵化壳聚糖膜的渗透性的湿度影响进行了实验评估。实验单元还额外配备了水分发生器和分析综合设施，其中包括电子湿度计和气相色谱TCD系统。在聚合物膜上分离之前和之后获得气体湿度值。实验表明，PVTMS膜在水蒸气（最多2.5％（体积））存在下具有稳定的气体传输特性。