Microwave heating of polymers: Influence of carbon nanotubes dispersion on the microwave susceptor effectiveness
| Autor: | Begoña Galindo, Adolfo Benedito, Fernando Ramos, Enrique Giménez |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Polymers and Plastics 02 engineering and technology Carbon nanotube 010402 general chemistry 01 natural sciences Nanocomposites law.invention Condensed Matter::Materials Science chemistry.chemical_compound law CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA Materials Chemistry Composite material Composites Polypropylene chemistry.chemical_classification Nanocomposite Matrix General Chemistry Polymer Polyethylene Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology 0104 chemical sciences Condensed Matter::Soft Condensed Matter chemistry 0210 nano-technology Dispersion (chemistry) Microwave Susceptor |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| ISSN: | 0032-3888 |
| Popis: | Carbon nanotubes dispersion within the polymer matrix is a very important factor to take into account when developing new nanocomposites with optimized properties. In this article, dispersion studies have been carried out with polypropylene filled with 1% of multiwall carbon nanotubes. The nanocomposites were obtained by melt compounding in a corotative twin screw extruder. Processing parameters as screw speed, screw configuration and feeding technology were modified to analyse their effect onto carbon nanotubes dispersion. Developed nanocomposites were exposed to microwave heating (5.8 GHz, 700 W, 60 min) and heating temperature was monitored. The relation between dispersion level of carbon nanotubes and heating effectiveness was studied. Microwave heating efficiency of carbon nanotubes was increased as dispersion was improved. Electrical conductivity of nanocomposites was measured and used as indirect variable of microwave heating susceptor of carbon nanotubes nanocomposites. Higher electrical conductivity indicates a better microwave susceptor propertiy of the nanocomposite. POLYM. ENG. SCI., 2016. © 2016 Society of Plastics Engineers |
| Databáze: | OpenAIRE |
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