chapter  21
20 Pages

Fundamentals of Diffusion Mass Transfer

There are many applications of composite materials where diffusion mass transfer plays an important role. Composite membranes are used extensively in the separation of gas mixtures. In the packaging industry, composite membranes are used as barrier films. In the design and application of composite membranes, a good understanding of diffusion mass transfer is required. In this chapter, the key concepts and equations governing diffusion mass transfer are reviewed.