After a suitable cleaning treatment, high modulus, unsized, polyacrylonitrile-derived carbon fibres were surface-treated by negative d.c. corona discharges under a flow of various nitrogen/oxygen mixtures at ambient pressure and temperature. The surface composition and morphology of the fibres, characterized before and after the treatment by X-ray photoelectron spectroscopy, X-ray excited Auger spectroscopy and scanning electron microscopy, were influenced by several experimental parameters (applied potential, gaseous atmosphere, time of treatment, geometry of the corona apparatus, post-treatment storage conditions, etc.). The matter is discussed in the light of previously published information.
Activation of carbon fibres by negative d.c. corona discharge at ambient pressure and temperature / E. Desimoni, A.M. Salvi, U. Biader Ceipidor, I.G. Casella. - In: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA. - ISSN 0368-2048. - 70:1(1994), pp. 1-9. [10.1016/0368-2048(94)02207-G]
Activation of carbon fibres by negative d.c. corona discharge at ambient pressure and temperature
E. DesimoniPrimo
;
1994
Abstract
After a suitable cleaning treatment, high modulus, unsized, polyacrylonitrile-derived carbon fibres were surface-treated by negative d.c. corona discharges under a flow of various nitrogen/oxygen mixtures at ambient pressure and temperature. The surface composition and morphology of the fibres, characterized before and after the treatment by X-ray photoelectron spectroscopy, X-ray excited Auger spectroscopy and scanning electron microscopy, were influenced by several experimental parameters (applied potential, gaseous atmosphere, time of treatment, geometry of the corona apparatus, post-treatment storage conditions, etc.). The matter is discussed in the light of previously published information.
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