Electrophoretic Deposition of Zeolite 5A for Use in Supported Gas Separation Membranes
Electrophoretic deposition was investigated as a procedure for preparing supported membranes of zeolite 5A for use in gas separations. In particular, the addition of polyethylene imine (PEI) to the non-aqueous bath was explored as means of improving gas separation selectivity, deposit morphology, and adhesion. It was found that the addition of PEI improved all of these qualities. Post-deposition treatments such as baking and coating with polystyrene were also studied.
A.R. Boccaccini, O. Van der Biest and R. Clasen
W. S. Sweet et al., "Electrophoretic Deposition of Zeolite 5A for Use in Supported Gas Separation Membranes", Key Engineering Materials, Vol. 314, pp. 39-44, 2006