Gas transport properties of polyimide/NaX membrane

초록

In the present works, polyimides have often been used as a membrane separation material because polyimides have a good mechanical strength and thermal and chemical stability, but polymer membrane has the limit of separation properties. Many studies to use composite material and modified polymer were performed in order to overcome this limit. In this experiment, NaX type zeolite which has a larger affinity for N2 than one for O2 and 6FDA-p-TeMPD polyimide which has a largest permeability in the series of polyimides were used to improve the separation properties for O2/N2. The separation properties of 6FDA-p-TeMPD polyimide were =122barrer and =3.4.