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|Title:||Ribbon fibres from naphtalene-based mesophase: Surface studies and fibre/matrix interactions in polycarbonate composites|
|Author(s):||Paiva, M. C.|
Edie, D. D.
Bernardo, C. A.
A. carbon fibres
D. mechanical properties
D. surface properties
|Abstract(s):||Naphthalene-based mesophase ribbon fibres were studied in the present work. The fibres were surface treated in a plasma reactor and their mechanical and surface characteristics determined before and after the surface oxidation. The dispersive and non-dispersive components of the surface energy were obtained by contact angle measurements using a tensiometric method, and the surface oxygen content was measured by XPS. The mechanical characterisation was made by single filament tensile tests. The interactions between the ribbon fibres and a polycarbonate matrix were assessed by means of fragmentation tests. The results were compared with those obtained with pitch-based fibres with circular cross-sections.|
|Access:||Restricted access (UMinho)|
|Appears in Collections:||IPC - Artigos em revistas científicas internacionais com arbitragem|
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