The role of carbon nanotubes in both physical and chemical liquid-solid transition of polydimethylsiloxane
In this work we investigate the effect of the dispersion degree of as-received multiwall carbon nanotubes (MWNTs) in the liquid-solid transitions (LST) of polydimethylsiloxane (PDMS). The physical LST of the suspensions showed a strong dependence on the nanotubes dispersion degree due to the formati...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/194110 |
| Acceso en línea: | http://hdl.handle.net/10261/194110 |
| Access Level: | acceso abierto |
| Palabra clave: | Carbon nanotubes Polydimethylsiloxane Cross-linking reaction Rheological properties Dispersion |
| Sumario: | In this work we investigate the effect of the dispersion degree of as-received multiwall carbon nanotubes (MWNTs) in the liquid-solid transitions (LST) of polydimethylsiloxane (PDMS). The physical LST of the suspensions showed a strong dependence on the nanotubes dispersion degree due to the formation of an interconnected network as the dispersion time increased. These MWNTs acting as >effective physical cross-links> also influenced the dynamic viscoelastic properties, accelerating the chemical LST (or chemical cross-linking) and giving rise to an increase in the cross-linking density of the composite samples. |
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