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Quantitative explanation of the mechanism of corrosion of poly(tetrafluoroethylene) caused by active alkali metals
Author(s) -
Jansta J.,
Dousek F. P.,
Řiha J.
Publication year - 1975
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.1975.070191206
Subject(s) - tetrafluoroethylene , alkali metal , galvanic cell , anode , materials science , electrochemistry , corrosion , penetration (warfare) , cathodic protection , metal , galvanic corrosion , reaction mechanism , inorganic chemistry , polymer chemistry , composite material , chemistry , electrode , metallurgy , organic chemistry , copolymer , polymer , catalysis , operations research , engineering
The known method of surface treatment of poly(tetrafluoroethylene) (Teflon) by alkali metals was studied quantitatively. It was shown that the reaction proceeds by an electrochemical mechanism in solid phase. The alkali metal acts as anode and Teflon as a cathodic active material of a typical galvanic corrosion cell. A relation describing the rate of the penetration of this reaction into the depth of Teflon was derived.