Chinese Journal of Applied Chemistry ›› 1988, Vol. 0 ›› Issue (1): 74-77.

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THE DEPENDENCE OF GAS TRANSPORT RATE OF POLYMER MEMBRANES ON TEMPERATURE

Tian He, Zhang Keda, Xu Jiping   

  1. Institute of Applied Chemistry, Academia Sinica
  • Received:1986-12-02 Revised:1987-03-19 Published:1988-02-10 Online:1988-02-10

Abstract: The oxygen and nitrogen transport rate of methylsilicone rubber, poly (4-methylpentene-1), ethylene-propylene rubber, high-pressure polyethylene and natural rubber membranes were measured at different temperature. The results exhibited that the dependence of gas transport rate of polymer membranes on temperature is relative only to the materials the membranes made. The oxygen and nitrogen permeation activation energy and the temperature coefficient of the gas transport rate were calculated. The relationship of permeation activation energy with the molecular structure of membrane materials was discussed.

Key words: Polymer film, Gas separation, Membrane structure, Property