Figure 9
From: Characterization technique of gases permeation properties in polymers: H2, He, N2 and Ar gas
(a) Gas uptake (\({C}_{\infty }\)) and (b) diffusivity (D) versus exposed pressure for four gases in HDPE sheets with different thicknesses and HDPE spheres. T indicates the thickness of the HDPE sheet. R indicates the radius of the HDPE sphere.
