Effect of Surface Treatment of Titanium Dioxide Nanoparticles on Non-Isothermal Crystallization Behavior,Viscoelastic Transitions and Cold Crystallization of Poly(Ethylene Terephthalate) Nanocomposites |
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| Authors: | D. Cayuela M. Cot M. Riva R. J. Sanchez M. G. Sánchez-Loredo I. Algaba |
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| Affiliation: | 1. Institut d’Investigació Textil de Terrassa (INTEXTER) - Universitat Politècnica de Catalunya, Colom 15, 08222 Terrassa, Spain cayuela@intexter.upc.edu;3. Departament d’Enginyeria Tèxtil i Paperera (DETIP) - Universitat Politècnica de Catalunya, Colom 11, 08222 Terrassa, Spain;4. Institut d’Investigació Textil de Terrassa (INTEXTER) - Universitat Politècnica de Catalunya, Colom 15, 08222 Terrassa, Spain;5. Instituto de Metalurgia/Facultad de Ingenieria, Universidad Autónoma de San Luis Potosí, Sierra Leona 520, San Luís Potosí 78290 SLP, Mexico;6. Department d’Estadística i Investigació Operativa - Universitat Politècnica de Catalunya, Colom 11, 08222 Terrassa, Spain |
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| Abstract: | The effect of untreated and tri-n-octylphosphine oxide (TOPO) surface-treated TiO2 nanoparticles when included as filler in poly(ethylene terephthalate) on its compatibility, non-isothermal crystallization behavior, viscoelastic transitions and cold crystallization has been studied. The effectiveness of the surface treatment has been studied using infrared spectrophotometry (FTIR) and thermogravimetric analysis (TGA). The effect of the untreated and surface-treated nanofiller content in the polymer, added by an extrusion process, on the non-isothermal crystallization has been studied by differential scanning calorimetry (DSC). The influence on the viscoelastic transitions and cold crystallization of PET nanocomposites has been studied through thermomechanical analysis (TMA). The surface treatment and the concentration of nanofiller influence the non-isothermal crystallization behavior, the viscoelastic transitions and the cold crystallization of the PET nanocomposites, enables us to evaluate the compatibility and the level of dispersion/aggregation of the nanofiller in the poly(ethylene terephthalate). |
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| Keywords: | Poly(ethylene terephthalate) TiO2 tri-n-octylphosphine oxide nanocomposites crystallization mechanical properties |
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