Nitrogen/oxygen permeability of natural rubber, epoxidised natural rubber and natural rubber epoxidised natural rubber blends

被引：74

作者：

Johnson, T ^{[1
]}

Thomas, S ^{[1
]}

机构：

[1] Mahatma Gandhi Univ, Sch Chem Sci, Kottayam 686560, Kerala, India

来源：

POLYMER | 1999年 / 40卷 / 11期

关键词：

natural rubber; epoxidised natural rubber; permeability;

D O I：

10.1016/S0032-3861(98)00528-X

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Pure gas transport properties of natural rubber (NR), epoxidised natural rubber (ENR) and their blends have been determined. The permeabilities of the pure polymers and blends were determined with nitrogen and oxygen. The relation between oxygen-to-nitrogen selectivity and the glass transition temperature has been studied. NR is more permeable to nitrogen and oxygen but ENR-50 shows maximum oxygen-to-nitrogen selectivity. In NR/ENR blends, permeability of the penetrant decreases with Volume fraction of ENR, whereas selectivity increases with volume fraction of ENR. Pure gas permeabilities of NR/ENR blends were compared with models for permeation in heterogeneous media. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：3223 / 3228

页数：6

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