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Preparation and characterization of ball‐milled Nafion® powders for membrane applications
Author(s) -
Haynes Shawn D.,
Mitchell Brian S.
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20776
Subject(s) - pellets , materials science , nafion , membrane , chemical engineering , transmission electron microscopy , particle size , ball mill , thermal analysis , composite material , thermal , nanotechnology , chemistry , electrochemistry , biochemistry , physics , electrode , meteorology , engineering
A method for producing Nafion® powder from commercially available pellets, and using this powder to produce membranes, is described. A description of particle size distribution, chemical composition, and thermal properties of Nafion® powders prepared by high‐energy ball milling of pellets is given. Nafion® powders prepared in this manner exhibit thermal behavior similar to that of the precursor pellets; however, traces of iron from the milling materials are shown to be present through transmission electron microscopy analysis of the particles. The membranes prepared by hot pressing of the Nafion® powders also show thermal behavior similar to that of the precursor pellet materials. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 2275–2281, 2004