Rival, Guilhem and Paulmier, Thierry and Dantras, Eric
Influence of electronic irradiations on the chemical and structural properties of PEEK for space applications.
(2019)
Polymer Degradation and Stability, 168. 1-8. ISSN 0141-3910
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 787kB |
Official URL: https://doi.org/10.1016/j.polymdegradstab.2019.108943
Abstract
Polymer materials used in satellite manufacturing are exposed to severe environmental conditions. Irradiation by high-energy electrons induces chemical modifications of macromolecules. PolyEtherEtherKetone (PEEK) is used in space industry and therefore, its behaviour regarding electronic irradiations has to be studied. Thus, the aim of this work is to investigate the effect of experimental electronic irradiations on the physical and chemical structure of PEEK. In this way, PEEK films were irradiated under high vacuum by a mono-energetic electron beam. Doses deposited are representatives of 15 years in geostationary electronic environment. The study of irradiated samples revealed modifications of the chemical and physical structures. Irradiation predominantly induces cross-linking phenomena in the amorphous phase in front of chain scission phenomena. Irradiation also leads to a decrease in crystallite size and crystallinity ratio.
Item Type: | Article |
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HAL Id: | hal-02307101 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
Laboratory name: | |
Funders: | Région Occitanie |
Statistics: | download |
Deposited On: | 07 Oct 2019 10:07 |
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