聚乙烯醇/超支化聚酯交联渗透汽化膜的制备及其溶解扩散性能分析

doi:10.19491/j.issn.1001-9278.2019.11.007

中国塑料 ›› 2019, Vol. 33 ›› Issue (11): 34-38.DOI: 10.19491/j.issn.1001-9278.2019.11.007

聚乙烯醇/超支化聚酯交联渗透汽化膜的制备及其溶解扩散性能分析

王勇

陕西煤业化工集团神木天元化工有限公司

收稿日期:2019-07-10 修回日期:2019-07-23 出版日期:2019-11-26 发布日期:2019-12-27

Preparation and Dissolutiondiffusion Performance of Poly(vinyl alcohol)/ Hybranched Polyester Crosslinked Pervaporation Membranes

WANG Yong

Shaanxi Coal and Chemical Industry Group Shenmu Tianyuan Chemical Industry Co,LtdYulin 719319,China

Received:2019-07-10 Revised:2019-07-23 Online:2019-11-26 Published:2019-12-27

摘要/Abstract

摘要： 将超支化聚酯（HBPE）与聚乙烯醇（PVA）共混交联制备了PVA/HBPE交联渗透汽化膜，研究了PVA/HBPE交联膜内的溶解扩散及渗透汽化性能。结果表明，随着温度的增加，水在交联膜内的渗透系数（Pwater）增加，且变化趋势与纯水通量一致，在55 ℃时达到最大值71.952 g/m2·h;随着HBPE含量的增加，渗透系数Pwater及纯水通量呈现增加的趋势，当HBPE含量为40 %时，纯水通量达到最大值185.726 g/m2·h。

关键词: 超支化聚酯, 聚乙烯醇, 交联膜, 溶解扩散, 渗透汽化

Abstract: A series of poly（vinyl alcohol）(PVA)/hyperbranched polyester (HBPE) crosslinked membranes were prepared by blending PVA and HBPE at different mass ratios, and their dissolution-diffusion mechanism and pervaporation properties were investigated. The results indicated that the water permeability coefficient of the crosslinked membranes increased at the elevated temperatures, and its variation trend was consistent with the water flux. The crosslinked membranes achieved a maximum water permeability coefficient of 71.952 g/m2·h at 55 ℃. The water flux was found to increase with an increase of HBPE content, and a maximum water flux of 185.726 g/m2·h was gained for the crosslinked membranes containing 40 wt% HBPE.

Key words: hyperbranched polvester, poly(vinyl alcohol), crosslinked membranes, dissolution-dif-fusion, pervaporation

中图分类号:

TQ051.893

王勇. 聚乙烯醇/超支化聚酯交联渗透汽化膜的制备及其溶解扩散性能分析[J]. 中国塑料, 2019, 33(11): 34-38.

WANG Yong. Preparation and Dissolutiondiffusion Performance of Poly(vinyl alcohol)/ Hybranched Polyester Crosslinked Pervaporation Membranes[J]. China Plastics, 2019, 33(11): 34-38.

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聚乙烯醇/超支化聚酯交联渗透汽化膜的制备及其溶解扩散性能分析

Preparation and Dissolutiondiffusion Performance of Poly(vinyl alcohol)/ Hybranched Polyester Crosslinked Pervaporation Membranes

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