MODIFICATION OF GAS SEPARATION POLIMER MEMBRANE BY PLASMA OF BARRIER DISCHARGE
This paper is devoted to experimental investigation of non-equilibrium plasma effect upon permeability and selectivity of the polymer membrane “Letosil”. Two types of the discharge s were used for membrane modification: nanosecond and streamer two barriers discharges in two gas mixtures Ar-O 2 и CO 2. Measurement of membrane permeability in respect of He и CH 4 indicated that plasma treatment provides significant drop of CH 4 permeability and do not effect upon He permeability. Thus, plasma effect leads to strong increasing (about by 2 order of magnitude) of selectivity in He-CH 4 mixture.