Polyurethane/Poly(vinyl alcohol) Blend Membranes for Gas Separation

被引：31
作者：
Shirvani, Hemmat [1 ]
Sadeghi, Morteza [1 ]
Afarani, Hajar Taheri [2 ]
Bagheri, Rouhollah [1 ]
机构：
[1] Isfahan Univ Technol, Dept Chem Engn, Esfahan 8415683111, Iran
[2] Tennessee Technol Univ, Dept Chem Engn, Cookeville, TN 38505 USA
来源：
FIBERS AND POLYMERS | 2018年 / 19卷 / 05期
关键词：
Gas separation; Membrane; Polyurethane; Poly(vinyl alcohol); Blend; MIXED MATRIX MEMBRANES; NATURAL-RUBBER LATEX; PERMEATION PROPERTIES; TRANSPORT-PROPERTIES; CO2; POLYETHER; PERFORMANCE; FABRICATION; MORPHOLOGY; MIXTURES;
D O I：
10.1007/s12221-018-1023-6
中图分类号：
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号：
0805 ; 080502 ; 0821 ;
摘要：
This Study involves preparation and characterization of polyurethane (PU) and polyurethane/poly(vinyl alcohol) (PU/PVA) blend membranes for gas separation. PU was synthesized by two step polymerization based on isophorone diisocyanate (IPDI), 1,4-butanediamine (BDA), polytetramethylene glycol (PTMG) in the mole ratio of 3:2:1. The prepared blend membranes were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray Diffraction (XRD), and scanning electron microscopy (SEM). The effects of molecular weight of PVA, and blend composition on the gas transport properties of N-2, O-2, CO2 and CH4 were investigated. Obtained results show that the permeability of gases decreased in blend membranes by poly(vinyl alcohol) (PVA) molecular weights while their gas selectivity enhanced. Comparison of the gas separation performance of the prepared membranes to Robeson upper bound, reveal the enhancement of membrane performance by introducing PVA in PU matrix.
引用
收藏
页码：1119 / 1127
页数：9
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