Designing of carbon nanofilaments-based composites for innovative applications

作者：Cesano Federico; Bertarione Serena; Scarano Domenica^*; Spoto Giuseppe; Zecchina Adriano

来源：Diamond and Related Materials, 2009, 18(5-8): 979-983.

DOI：10.1016/j.diamond.2008.11.011

• Polymer composites
• Nanofibres
• Nanostructures
• CVD

The catalytic growth of CNTs and/or CNFs polymer composites has been performed by means of the chemical vapour deposition of a C(2)H(4)/H(2) gas mixture on polymer supports (i.e. para-aramide powders and fibres) at 500-600 degrees C. By selecting suitable reaction parameters, the concentration and the growth level of the CNTs and/or CNFs on the polymer surface can be changed, according to the final properties of the obtained composite. Nanofilaments, 20 divided by 120 mn in diameter formed at 500 degrees C on polymer supported Ni catalysts, give rise. at first, to a carbon-polymer composite. A more dense porous nanotissue, then generated at 600 degrees C, embeds the polymer substrate with formation of a carbon-carbon composite. In this work, the progressive formation of carbon-polymer and then carbon-carbon composites is investigated by SEM, TEM and AFM microscopies and by XRD analysis.

• 出版日期2009-8