Permeation of CO2 through polyurethane
Permeation of CO2 through polyurethane
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CO2 通过聚氨酯的渗透
DOI：
10.1002/app.1990.070400705
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发表时间：
1990
影响因子：
3
通讯作者：
T. Y. Yu
中科院分区：
文献类型：
--
作者：
H. Xiao;Z. Ping;J. Xie;T. Y. Yu
研究了CO2在聚氨酯中的渗透性。结果表明，随着硬段含量的减少和软段长度的增加，磁导率增加，但活化能基本不变。磁导率随退火温度的升高而增大。渗透率的温度依赖性在低于60-80°C的温度下观察到阿克里尼乌斯方程，但在高于该范围的温度下偏离。这种偏离可能是由于硬段畴中短程有序的解离导致硬段和软段的混合增加。
The permeability of CO2 through polyurethane was investigated. It is found that the permeability increases with the decrease of hard segment content and the increase of soft segment length; however, no change of activation energy is involved. The permeability increases with the elevation of annealing temperature. The temperature dependence of permeability observes the Arrhenius equation at temperatures below 60–80°C, but it deviates at temperatures above this range. This deviation would be attributed to the increase of mixing of hard and soft segments as a result of the dissociation of short-range order in hard segment domains.