Characterisation and feasibility as carbon fibre precursors of isotropic pitches derived from anthracene oil

FUEL

卷:101

Article; Proceedings Paper

Berrueco, Cesar¹  Alvarez, Patricia²  Diez, Noel²  Granda, Marcos²  Menendez, Rosa²  Blanco, Clara²  Santamaria, Ricardo²  Millan, Marcos¹ 

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn, London SW7 2AZ, England

[2] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain

关键词: Carbon fibres;    Melt spinning;    Anthracene oil;    LDI-MS;    UV-F;   

DOI  :  10.1016/j.fuel.2011.10.005

来源: Elsevier

【 摘 要 】

This work describes the preparation of isotropic carbon fibres from three anthracene oil-derived pitches of different softening points. The total absence of solid particles (e. g., primary quinoline insoluble (QI) particles) and the high aromatic composition turn these precursors into a promising raw material for the preparation carbon fibres, as they can be used without any pre-treatment. The carbon fibres were prepared by a melting process that involved the spinning of the pitches and subsequent oxidative stabilization with air and carbonisation. Scanning electron microscopy was used to monitor the surface appearance and diameter of the fibres. The results showed that softening point by itself cannot explain the spinning behaviour of the pitches. Therefore, detailed characterisation of the samples by means of size exclusion chromatography, UV-fluorescence spectroscopy, and laser desorption time-of-flight mass spectrometry was used to elucidate the composition of the pitches, especially their molecular weight distributions. The combination of the characterisation of the precursors with the characterisation of the fibres provides an overall vision of the carbon fibre preparation from the pitches and will certainly permit a pre-selection of the most appropriate precursor for this application. (C) 2011 Elsevier Ltd. All rights reserved.

【 授权许可】

Free