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Controlled chemical oxidation of carbon fibres: An XPS–XAES–SEM study
Author(s) -
Desimoni E.,
Salvi A. M.,
Casella I. G.,
Damiano D.
Publication year - 1993
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740201106
Subject(s) - potassium permanganate , x ray photoelectron spectroscopy , permanganate , polyacrylonitrile , auger electron spectroscopy , scanning electron microscope , chemistry , sulfuric acid , carbon fibers , peracetic acid , materials science , analytical chemistry (journal) , chemical engineering , inorganic chemistry , hydrogen peroxide , composite material , organic chemistry , physics , composite number , nuclear physics , engineering , polymer
High‐modulus, polyacrylonitrile‐derived carbon fibres were chemically oxidized in concentrated sulphuric acid containing potassium permanganate. The pre‐ and post‐oxidation surface status of the fibres was characterized by x‐ray photoelectron spectroscopy, x‐ray‐excited Auger spectroscopy and scanning electron microscopy. Tests were made to evaluate the effects of temperature, time of treatment and permanganate concentration. The overall results are discussed in terms of flexibility and easiness of the treatment and of reproducibility of the chemical composition of the oxidized fibre surface.