Effect of Mesoporous SBA-15 Silica on the Thermal Stability of isotactic Polypropylene based Nanocomposites prepared by Melt Extrusion
| Autor: | José M. Gómez-Elvira, Jorge Aníbal Ressia, Rosa Barranco-García, Ernesto Pérez, Enrique M. Vallés, María L. Cerrada, Alberto García-Peñas |
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| Přispěvatelé: | European Commission, Ministerio de Economía, Industria y Competitividad (España), Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina), Universidad Nacional del Sur, Barranco-García, Rosa, Cerrada, María L., Ressia, Jorge, Vallés, Enrique M, García-Peñas, A., Cerrada, María L.[0000-0003-4261-0627], García-Peñas, A.[0000-0001-5707-0198] |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Polymers and Plastics 02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound Rheology Tacticity Thermal Materials Chemistry Thermal stability Polypropylene Inert TGA Nanocomposite 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences chemistry Chemical engineering Mesoporous SBA-15 particles Mechanics of Materials 0210 nano-technology Mesoporous material |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | The influence of mesoporous SBA-15 on the thermal stability of nanocomposites with isotactic polypropylene has been evaluated in detail, both under inert and air conditions, by performing dynamic weight loss measurements and by tracking the evolution of degradation species in materials prepared by melt extrusion. A superior thermal stability has been found in the composites, both under nitrogen and air, compared with that observed in the pristine PP. An almost identical effect has been found under those two atmospheres, in spite that the mechanisms involved in both of them are completely different. The rheological characteristics of these materials turn out the driving aspect in the observed thermal behaviour, prevailing on other specific detrimental parameters The financial support from project MAT2016-79869-C2-1-P (AEI/FEDER, UE) is greatly acknowledged. Ms. R Barranco-García also thanks her pre-doctoral funding (BES-2014-070972) associated with the MINECO (MAT2013-47972-C2-1-P) project. EMV and JR also express their gratitude to the Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina (CONICET) and Universidad Nacional del Sur (UNS, Argentina) for supporting this study. |
| Databáze: | OpenAIRE |
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