Publicação
A promising conductive material: highly oriented polypropylene filled with short vapour-grown carbon fibres
| Resumo: | Polypropylene matrix composites in the form of a continuous fibre, reinforced with submicron vapour-grown carbon fibre (VGCF), were prepared using a conventional polymer fibre processing technology. It has been found that materials with a unique set of mechanical and electrical properties can be obtained by combining polymer orientation and VGCF content. As-spun composites have Young’s moduli of 3.0–6.3 GPa, tensile strengths of 40–77 MPa, and electrical resistivities down to 2.2 x 10… m. The spun samples may be stretched at 130ºC with a concomitant increase in the modulus and strength up to 720 MPa and 14.9 GPa, respectively. The stretched composite fibre filled with 15 vol.% of VGCF shows tensile strength of 310 MPa and Young’s modulus of 11.2 GPa, being still electrically conductive. |
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| Autores principais: | Gordeyev, S. A. |
| Outros Autores: | Ferreira, J. A.; Bernardo, C. A.; Ward, I. M. |
| Assunto: | Polymer composites Vapour-grown carbon fibres Mechanical properties Electrical resistivity |
| Ano: | 2001 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | Polypropylene matrix composites in the form of a continuous fibre, reinforced with submicron vapour-grown carbon fibre (VGCF), were prepared using a conventional polymer fibre processing technology. It has been found that materials with a unique set of mechanical and electrical properties can be obtained by combining polymer orientation and VGCF content. As-spun composites have Young’s moduli of 3.0–6.3 GPa, tensile strengths of 40–77 MPa, and electrical resistivities down to 2.2 x 10… m. The spun samples may be stretched at 130ºC with a concomitant increase in the modulus and strength up to 720 MPa and 14.9 GPa, respectively. The stretched composite fibre filled with 15 vol.% of VGCF shows tensile strength of 310 MPa and Young’s modulus of 11.2 GPa, being still electrically conductive. |
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