Improvement of dielectric properties of natural rubber by adding perovskite nanoparticles
| Autor: | Neudys González, Said Lalaouna, Jordi-Roger Riba, Elaine Armelin, Maria del Àngels Custal |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica, Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, Universitat Politècnica de Catalunya. MCIA - Motion Control and Industrial Applications Research Group, Universitat Politècnica de Catalunya. IMEM - Innovació, Modelització i Enginyeria en (BIO) Materials |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Polymers and Plastics Ruptura dielèctrica Oxide General Physics and Astronomy Nanoparticle natural rubber Perovskita 02 engineering and technology 010402 general chemistry Elastomer Perovskite 01 natural sciences Nanocomposites chemistry.chemical_compound Cautxú Nanocompostos (Materials) Natural rubber Materials Chemistry Ceramic Composite material Perovskite (structure) chemistry.chemical_classification Nanocomposite dielectric breakdown Organic Chemistry Polymer 021001 nanoscience & nanotechnology permittivity 0104 chemical sciences Breakdown (Electricity) Energies::Energia elèctrica [Àrees temàtiques de la UPC] chemistry visual_art visual_art.visual_art_medium Rubber 0210 nano-technology |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| Popis: | Natural rubber matrix, reinforced with several conventional stabilizer additives, was further charged with perovskite nanoparticles. Although the addition of BaTiO3 ceramic particles usually transforms a non-conducting pristine polymer into a more conductive polymer composite, in this case we use the addition of a few percent of BaTiO3 (less than 1 wt.%) to decrease the effective electrical conductivity of natural rubber (NR). This reduction has been attributed to the synergistic effect between ceramic particles and the amorphous phase of the polymer matrix, which allowed decreasing the interfacial polarisation among the NR/oxide particles interfaces. Electrical tests clearly indicate that the breakdown voltage increases and the leakage current decreases, whereas the mechanical and hydrophobicity properties of solid films improve after accurate sonication of all solid particles before pre-vulcanization process. Therefore, the dielectric elastomer becomes more insulating with the addition of nanometric oxide particles. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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