Dispersion of Carbon Nanotubes in Polycarbonate and Its Effect on the Composite Properties
| Autor: | C. A. Bernardo, José A. Covas, Carla Leer, Ferrie W.J. van Hattum, Imre Kiricsi, Olga S. Carneiro, Zsolt Endre Horváth, László P. Biró, João M. Maia |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Materials science
Mechanical Engineering Composite number Mechanical properties of carbon nanotubes 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention Carbon nanotube metal matrix composites Optical properties of carbon nanotubes Mechanics of Materials law Electrical resistivity and conductivity visual_art Dispersion (optics) visual_art.visual_art_medium General Materials Science Polycarbonate Composite material 0210 nano-technology |
| Zdroj: | Materials Science Forum. :1125-1130 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.514-516.1125 |
| Popis: | The effect of the dispersion state of carbon nanotubes in polycarbonate on the rheological, mechanical and electrical properties of melt-extruded compounds is presented. The dispersion state was monitored by means of grey values distribution histograms of optical micrographs of the composites. Increasing the processing residence time, and hence the deformation induced by the surrounding polymer, increased the level of dispersion of CNTs in the matrix. This, in turn, resulted in a large improvement of the CNTs reinforcement effect and decreased composite electrical resistivity. Rheological behaviour is in agreement with these observations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|