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.
|Titolo:||Activation of carbon fibres by negative d.c. corona discharge at ambient pressure and temperature|
DESIMONI, ELIO (Primo)
|Parole Chiave:||Carbon fibre; D.C. corona discharge; SEM; XAES; XPS|
|Settore Scientifico Disciplinare:||Settore CHIM/01 - Chimica Analitica|
|Data di pubblicazione:||1994|
|Digital Object Identifier (DOI):||10.1016/0368-2048(94)02207-G|
|Appare nelle tipologie:||01 - Articolo su periodico|