THE EFFECT OF WATER ON THE TRANSPORT OF OXYGEN THROUGH NYLON-6 FILMS

被引:43
作者
GAVARA, R
HERNANDEZ, RJ
机构
[1] MICHIGAN STATE UNIV,SCH PACKAGING,E LANSING,MI 48824
[2] CSIC,E-46010 VALENCIA,SPAIN
关键词
NYLON-6; DIFFUSION OF OXYGEN; BIMODAL DIFFUSION; EFFECT OF WATER CONTENT;
D O I
10.1002/polb.1994.090321408
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The effect of presence of water on the transport of oxygen through films of Nylon-6 was evaluated at 5, 23, and 40-degrees-C by permeation experiments. Through the oxygen permeability experiments it was found that the diffusion of oxygen through Nylon-6 is not a simple Fickian process and the total diffusion process can be expressed by a bimodal diffusion mechanism. Permeability, solubility, and diffusion coefficients were determined as a function of water activity for both mechanisms. The effect of sorbed water on the oxygen diffusion and solubility in the polymer is presented as a function of the state of water in the polymer and as a result of the molecular competition between water and oxygen. (C) 1994 John Wiley & Sons, Inc.
引用
收藏
页码:2375 / 2382
页数:8
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