ISSN:
0032-3888
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Over the past two decades, membrane technology has found application in a variety of industries, ranging from water desalination to gas separations. These new applications have come about because of the availability of high-performance, permselective membranes. A key element in the development of these new membranes has been the discovery of “skinned” or asymmetric membranes. These membranes typically have an effective thickness on the order of 0.1 to 0.2 μm. They are essentially composite structures, consisting of a dense skin supported by a finely porous substrate. We now recognize that an understanding of the mechanism of formation of these asym-metric membranes is available through binary and ternary phase diagrams. Membranes for microfiltration, ultrafiltration, reverse osmosis, and gas separations are now routinely produced by some form of “phase inversion” process, amenable to explanation through phase diagram considerations.
Additional Material:
9 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pen.760251705
