Conversion of cellulosic fibres into carbon fibres: a study of the mechanical properties and correlation with chemical structure

• Published in: Composites science and technology Vol. 61; no. 14; pp. 2063 - 2068
• Main Authors: Plaisantin, H, Pailler, R, Guette, A, Daudé, G, Pétraud, M, Barbe, B, Birot, M, Pillot, J.P, Olry, P
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 2001; Elsevier
• Subjects: A. Fibres; Applied sciences; B. Stress/strain curves; D. Thermogravimetric analysis (TGA); E. Heat treatment; Exact sciences and technology; Fibers and threads; Forms of application and semi-finished materials; Polymer industry, paints, wood; Rayon; Technology of polymers; Rayon; E. Heat treatment; A. Fibres; B. Stress/strain curves; D. Thermogravimetric analysis (TGA); High modulus fiber; Pyrolysis; Pyrocarbon; Molecular structure; Cellulose hydrate; Mechanical properties; Property structure relationship; Experimental study; Property processing relationship; Carbon fiber
• ISSN: 0266-3538; 1879-1050
• DOI: 10.1016/S0266-3538(01)00107-5

Rayon fibres were pyrolysed under inert gas flows up to 1200 °C. Changes in the mechanical properties of the fibres at various stages of the thermal treatment were studied and correlated with structural analyses of the char by CP/MAS 13C NMR and DRIFT spectroscopies. The force/displacement curve of fibres pyrolysed at 500 °C is non-linear but reversible within the deformation, which is approximately 10% at ultimate failure.