Еlectret properties of γ-irradiated composites of ultrahigh molecular weight polyethylene/α-SiO₂
The influence of silicon dioxide (α-SiO₂) and the absorbed dose of γ-irradiation on the electret properties of UHMWPE+α-SiO₂ composites were studied. It is established that the dependence of the stabilized charge on the volume content of the α-SiO₂ filler has an extreme character: at 1% α-SiO₂, th...
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| Datum: | 2018 |
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| Hauptverfasser: | , , , , , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2018
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| Schriftenreihe: | Вопросы атомной науки и техники |
| Schlagworte: | |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/147700 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Еlectret properties of γ-irradiated composites of ultrahigh molecular weight polyethylene/α-SiO₂ / A.M. Magerramov, R.S. Ismayilova, M.M. Kuliev, A.A. Nabiev, E.G. Gadzhieva, J.I. Ismayilov, R.S. Abdullaev, G.A. Akhundova // Вопросы атомной науки и техники. — 2018. — № 5. — С. 50-54. — Бібліогр.: 20 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The influence of silicon dioxide (α-SiO₂) and the absorbed dose of γ-irradiation on the electret properties of
UHMWPE+α-SiO₂ composites were studied. It is established that the dependence of the stabilized charge on the
volume content of the α-SiO₂ filler has an extreme character: at 1% α-SiO₂, the charge reaches a maximum and then
decreases. TSD spectra show that the thermalstability of electrets of the UHMWPE+1 vol.% α-SiO₂ composite is
improved. The nature of the TSD current of the films which preliminarily γ-irradiated up to 50…100 kGy doses
proves that after γ-irradiation the charges injected from corona discharge zone are mainly accumulated in the
subsurface layers. However, the deterioration of the electret properties of composites irradiated at high doses of
γ-irradiation is related both to an increase in electrical conductivity so, and an increase in the rate of charge
relaxation. |
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