Properties of Polytetrafluoroethylene Films Modified with Titanium and Phosphorus Oxide Structures

Properties of Polytetrafluoroethylene Films Modified with Titanium and Phosphorus Oxide Structures

Properties of polytetrafluoroethylene films modified with mono- and two-component titanium-phosphorus oxide systems by alternating treatment of the polymeric substrate in a prescribed order with vapors of reagents from the series TiCl 4 , PCl 3 , and H 2 O were examined. It was found that the energy...

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Bibliographic Details
Published in:Russian journal of applied chemistry Vol. 92; no. 8; pp. 1128 - 1134
Main Authors: Radyuk, E. A., Sosnov, E. A., Malygin, A. A., Rychkov, A. A., Kuznetsov, A. E.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-08-2019
Springer Nature B.V
Subjects:
Additives
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Composite Materials
Differential thermal analysis
Functional groups
Industrial Chemistry/Chemical Engineering
Phosphorus
Phosphorus oxides
Polytetrafluoroethylene
Properties (attributes)
Reagents
Stability analysis
Substrates
Surface energy
Titanium
Titanium oxides
titanium- and phosphorus-containing structures
surface
electret properties
polytetrafluoroethylene
chemical modification
energy characteristics of the surface
thermo-oxidative stability
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Summary:Properties of polytetrafluoroethylene films modified with mono- and two-component titanium-phosphorus oxide systems by alternating treatment of the polymeric substrate in a prescribed order with vapors of reagents from the series TiCl 4 , PCl 3 , and H 2 O were examined. It was found that the energy characteristics of the sample surface with two-component oxide systems P–Ti and Ti–P in comparison with polytetrafluoroethylene modified with only phosphorus or titanium oxide functional groups due to the increase in the polar component of the surface energy. Specific features of the effect of stabilization of the electret charge in modified polytetrafluoroethylene films. It was shown that the best electret properties are possessed by titanium-containing polytetrafluoroethylene films, including those with two-component titanium-phosphorus oxide additives. According to the results of a differential-thermal analysis, modified samples exhibit an increased thermo-oxidative stability manifested in that the onset temperature of the polymer decomposition increases by 40–50° and the loss of mass decreases by 17–23% as compared with an unmodified sample at 650°C.
ISSN:1070-4272
1608-3296
DOI:10.1134/S1070427219080111