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.

Activation of carbon fibres by negative d.c. corona discharge at ambient pressure and temperature

E. Desimoni
Primo
;
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.
Carbon fibre; D.C. corona discharge; SEM; XAES; XPS
Settore CHIM/01 - Chimica Analitica
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/176672
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