Matrimid oxygen permeability

The development of this coating technique has enabled the study of ultra-thin films with thicknesses that are of interest in gas separation membrane applications. Figure 3.4(a) presents the influence of aging time on the oxygen permeability coefficients of Matrimid films down to 18 nm in thickness prepared with the coating technique. Note that the quoted film thickness is the thickness of the glassy layer. 

Figure 3.4 Influence of aging time on (a) oxygen permeability coefficients, and (b) O2/ N2 pure gas selectivity in Matrimid films with thicknesses ranging from 550 run to 18 run. Reproduced with permission of Elsevier. ...

FIGURE 4.15 The comparison of gas permeability for pure Matrimid and nanocomposite membranes with different loadings of MgO nanoparticles (a) permeability of helium, hydrogen, and carbon dioxide (b) permeability of oxygen, nitrogen, and methane). (Adapted from Hosseini, S.S., et al., /. Membrane Sci., 302, 207-217, 2007.)... 

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