Matrimid active layer thickness

Figure 5.14 Active layer thickness obtained by taking into account the silicone layers as a function of the corresponding thickness as measured by AFM for the 14/10 Matrimid membrane.

Another possible way to improve the performance of a membrane relies on increasing flux for a given permeability and selectivity by simply reducing the thickness of the active layer. An example on how AFM can help in this research program is worthy of comment here. This is the procedure to make Matrimid asymmetric membranes. 

Figure 5.13 also shows the corresponding thickness for the Matrimid dense layer as obtained from SEM. The thickness obtained by assuming that only the dense active layer of Matrimid has a significant resistance to the flux of gas according to... 

Figure 5.13 Thickness of the active layer of Matrimid membranes 14/10 and 14/12 as a function of the evaporation time obtained by different methods.

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See also in sourсe #XX -- [ ]

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