Effects of particle size and electrical resistivity of filler on mechanical, electrical, and thermal properties of linear low density polyethylene-zinc oxide composites
| Autor: | Devrim Balköse, Filiz Özmıhçı |
|---|---|
| Přispěvatelé: | Özmıhçı Ömürlü, Filiz, Balköse, Devrim, Izmir Institute of Technology. Chemical Engineering |
| Rok vydání: | 2013 |
| Předmět: |
Morphology
chemistry.chemical_classification Materials science Polymers and Plastics chemistry.chemical_element Mechanical properties Young's modulus General Chemistry Polymer Zinc Surfaces Coatings and Films Linear low-density polyethylene symbols.namesake Thermal conductivity chemistry Electrical resistivity and conductivity Zinc oxide Ultimate tensile strength Materials Chemistry symbols Particle size Composite material Composites |
| Zdroj: | Journal of Applied Polymer Science. 130:2734-2743 |
| ISSN: | 0021-8995 |
| DOI: | 10.1002/app.39433 |
| Popis: | The effects of particle size and electrical resistivity of zinc oxide (ZnO) on mechanical properties, electrical and thermal conductivities of composites made with linear low density polyethylene (LLDPE) were investigated. Micron sized (mZnO), submicron sized (sZnO), and nano sized (nZnO) powders having resistivities of 1.5 × 106, 1.5 × 109, and 1.7 × 108 were used to prepare composites with 5-20 vol % filler. The tensile strength was lowered and the modulus of elasticity of the composites was increased with ZnO addition. Rather than the particle size of the ZnO, its initial resistivity and aspect ratio affected the resistivity of composites. The resistivity of the LLDPE was lowered from 2.3 × 1016 Ω cm down to 1.4 × 1010 Ω cm with mZnO addition. Thermal conductivity of the composites was increased with ZnO addition 2.5-3 times of the polymer matrix. The composites can be used for electrostatically dissipating and heat sink applications due to their decreased electrical resistivity and increased thermal conductivity. IYTE BAP 2006 IYTE 25 |
| Databáze: | OpenAIRE |
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