Influence of the e-beam irradiation and photo-oxidation aging on the structure and properties of LDPE-OMMT nanocomposite films
| Autor: | Rossella Arrigo, N. Tz. Dintcheva, G. Przybytniak, Giuseppe Spadaro, Sabina Alessi |
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| Přispěvatelé: | Dintcheva, NT, Alessi, S, Arrigo, R, Przybytniak, G, Spadaro, G |
| Rok vydání: | 2012 |
| Předmět: |
Radiation
Materials science Nanocomposite LDPE-OMMT nanocomposite film e-beam irradiation Photo-oxidation ageing Mechanical properties Carbonyl index Molecular modification Polyethylene chemistry.chemical_compound Low-density polyethylene Settore ING-IND/22 - Scienza E Tecnologia Dei Materiali Montmorillonite chemistry Polymer chemistry Ultimate tensile strength Settore CHIM/07 - Fondamenti Chimici Delle Tecnologie Irradiation Composite material E beam irradiation Solubility |
| Zdroj: | Radiation Physics and Chemistry. 81:432-436 |
| ISSN: | 0969-806X |
| Popis: | In this paper two systems, polyethylene (LDPE) and polyethylene/commercial organo-modified montmorillonite (LDPE/OMMT) nanocomposite, were subjected to e-beam irradiation at different doses and both the molecular modifications and mechanical properties have been investigated through solubility, FT-IR, calorimetric and tensile tests. Moreover, in some of the irradiated systems photo-oxidation aging was performed and its effects were studied. The results show an enhancement with irradiation of the positive effect of the nano-filler loading, related to the increase of the mechanical properties, due to the increase of the nano-filler polymer interaction. Nevertheless calorimetric and FT-IR data indicate that the well known reduction of LDPE/OMMT nanocomposite resistance to photo-oxidation ageing, with respect to LDPE, is amplified by ionizing radiation. |
| Databáze: | OpenAIRE |
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