Author： Rychkov A. Yablokov M. Kuznetsov A. Gil’man A. Kuznetsov A.
Publisher： MAIK Nauka/Interperiodica
ISSN： 0018-1439
Source： High Energy Chemistry, Vol.44, Iss.4, 2010-07, pp. : 347-350
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Abstract
The electret properties of tetrafluoroethylene-hexafluoropropylene copolymer films modified in direct-current discharge were studied. It was shown that the treatment of the films mounted on the anode had an insignificant effect on the relaxation of negative homocharge despite substantial changes in the chemistry of the surface. However, the low-temperature relaxation process responsible for the instability of the electret state in the untreated film is completely suppressed in the case of decay of positive homocharge. Deep traps associated with high-temperature relaxation processes in the polymer are simultaneously eliminated from the spectrum of surface states.
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