Effects of gamma irradiation on structural, thermal and mechanical properties of polyamide-11/halloysite nanotubes nanocomposites
| Autor: | Mohamed Sahnoune, Hélène Garay, Mohamed Mahlous, Mustapha Kaci, José-Marie Lopez-Cuesta |
|---|---|
| Přispěvatelé: | Université Mohamed Akli Ouelhadj de Bouira (UMAOB), Laboratoire des Matériaux Polymères Avancés (LMPA), Faculté de Technologie, Université Abderrahmane Mira [Béjaïa], Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Equipe RIME - Recherche sur les Interactions des Matériaux avec leur Environnement (RIME), IMT - MINES ALES (IMT - MINES ALES), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Polymères Composites et Hybrides (PCH - IMT Mines Alès), Centre de Recherche Nucléaire d'Alger (CRNA), COMENA |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Nanocomposite 010308 nuclear & particles physics Gamma irradiation 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Halloysite [SPI]Engineering Sciences [physics] nanocomposites 0103 physical sciences Thermal Polyamide Ceramics and Composites engineering Degradation (geology) polyamide-11 halloysite Composite material 0210 nano-technology degradation |
| Zdroj: | Journal of Thermoplastic Composite Materials Journal of Thermoplastic Composite Materials, SAGE Publications (UK and US), In press, pp.089270572110319. ⟨10.1177/08927057211031966⟩ |
| ISSN: | 1530-7980 0892-7057 |
| Popis: | International audience; The effect of gamma irradiation on neat Polyamide-11 (PA11) and PA11 filled with 3 wt% of halloysite nanotubes (HNTs) was investigated at various doses up to 100 kGy in air and at room temperature. The irradiation test was conducted on sample films prepared by a twin-screw extruder in the first step then cast extrusion. The study showed the formation of a maximum of gel fraction up to 10 and 20 kGy for neat PA11 and PA11/HNTs, respectively. Furthermore, the results indicated the occurrence of crosslinking at low irradiation dose, whereas chain scission took place at higher ones. Additionally, the results revealed that the presence of HNTs limits the impacts of gamma irradiation through a barrier effect. An optimum irradiation dose was found for thermal and mechanical properties, corresponding to the dose for maximum gel formation. Moreover, experimental design was implemented to highlight the main incidences and interactions of both halloysite incorporation and radiation dose on some relevant effects of gamma irradiation. |
| Databáze: | OpenAIRE |
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