Effects of γ-Radiation and Addition of Silicone Dioxide on the Properties of Polytetrafluoroethylene

Effects of γ-Radiation and Addition of Silicone Dioxide on the Properties of Polytetrafluoroethylene

We perform a comparative study of melting of polytetrafluoroethylene (PTFE) in its unmodified form, after irradiation, and after adding plant-derived silicon dioxide as an additive (content, 1%). Calculation of peak shapes on thermal capacity profiles within the theory of smeared phase transitions e...

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Veröffentlicht in:Physics of the solid state 2019-07, Vol.61 (7), p.1332-1336
Hauptverfasser: Egorov, V. M., Yakushev, P. N., Arsent’ev, M. A., Smolyanskii, A. S.
Format: Artikel
Sprache:eng
Schlagworte:
Comparative studies
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Dynamic mechanical analysis
GAMMA RADIATION
Irradiation
MELTING
Phase transitions
Physics
Physics and Astronomy
Polymers
Polytetrafluoroethylene
RADIATION EFFECTS
RELAXATION
Silicon dioxide
SILICON OXIDES
Solid State Physics
SPECIFIC HEAT
TEFLON
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Zusammenfassung:We perform a comparative study of melting of polytetrafluoroethylene (PTFE) in its unmodified form, after irradiation, and after adding plant-derived silicon dioxide as an additive (content, 1%). Calculation of peak shapes on thermal capacity profiles within the theory of smeared phase transitions enable us to identify the structural changes and their features resulting from irradiation of PTFE and incorporation of the additive in it. α-relaxation at the glass transition in our samples is studied by dynamic mechanical analysis.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783419070084