Sorption of nitrogen and argon on fibrous and composite materials at pressures up to 50 MPa and temperatures 347, 373, and 393 K

Isotherms of sorption of nitrogen and argon on Polycone and Polycone-M composite-polymer fibrous materials was measured at pressures up to 50 MPa and temperatures 347, 373, and 393 K. An analysis of the obtained sorption isotherms demonstrated that the size of the pores in these polymeric materials is comparable to that of the sorbate molecules. That the obtained heats of sorption of nitrogen and argon are low was explained by the deformation of the Polycone and Polycone-M sorbents.