| Autor: | Pierre Delhaes, F. Carmona, S. Cui, Jean-Luc Putaux, Alain Dufresne, Michel Paillet, R. Canet |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Acrylate
Nanotube Materials science Nanocomposite Mechanical Engineering Butyl acrylate chemistry.chemical_element Percolation threshold Carbon nanotube law.invention chemistry.chemical_compound chemistry Mechanics of Materials law General Materials Science Thermal stability Composite material Carbon |
| Zdroj: | Journal of Materials Science. 37:3915-3923 |
| ISSN: | 0022-2461 |
| DOI: | 10.1023/a:1019659624567 |
| Popis: | Nanocomposite materials were prepared from an amorphouspoly(styrene-co-butyl acrylate) latex as the matrix using an aqueous suspension of carbon nanotubes as the filler. After stirring, the preparations were cast and evaporated. The morphology of the resulting films was examined by scanning electron microscopy and a good dispersion of the filler was observed, except for the 5 wt% filled sample. The electrical conductivity and mechanical behavior in both the linear and non-linear ranges were analyzed. From conductivity measurements, a clear percolation threshold has been observed for a relatively low critical volume fraction around 1.5%. The mechanical characterization displayed a continuous reinforcing effect of the carbon nanotubes without lowering of the elongation at break up to 3 wt%. The thermal stability of the composites was strongly improved by carbon nanotubes loading. For instance, the terminal zone was shifted by 115 K with only 15 wt% of nanotubes. |
| Databáze: | OpenAIRE |
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