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Thermal and Photooxidative Degradation Behaviors of Poly(propylene)/SiO2 Nanocomposites with Various Polymer Morphologies |
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| Authors: | Ken‐Ichi Sumino Toshiaki Taniike Minoru Terano Graeme A George |
| Institution: | 1. School of Materials Science, Japan Advanced Institute of Science and Technology, 1‐1 Asahidai, Nomi, Ishikawa, 923‐1211, Japan;2. Faculty of Science, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane, Queensland 4001, Australia |
| Abstract: | Photo‐ and thermal stabilities of poly(propylene) (PP)/SiO2 nanocomposites were studied by varying the particle size of the SiO2 nanoparticles. It was found that smaller SiO2 nanoparticles improved the stabilities of the nanocomposites by depressing the size of spherulites. The phenomenon was successfully explained within the infectious spreading model, where the spatial spreading of oxidation was delayed at the interfacial region between the spherulites.  |
| Keywords: | degradation morphology nanocomposites poly(propylene) stability |