Journal
APPLIED SURFACE SCIENCE
Volume 254, Issue 9, Pages 2588-2593Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2007.09.105
Keywords
carbon fibre; XPS; recycling; interfacial bonding
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X-ray photoelectron spectroscopy (XPS) was used to investigate the surface of carbon fibres recycled using a high-temperature fluidised bed. The interfacial shear strength of the recycled carbon fibres with epoxy resin was examined using a micro-droplet test. The corresponding as received carbon fibres were used as control samples. It was shown that the recycling process converted some of the surface hydroxyl groups into carbonyl and carboxylic groups due to the effect of heat in atmosphere of air. The overall O/C ratio was not changed significantly. The interfacial shear strength with epoxy resin was not affected by the change of surface oxygen composition. It was also shown that surface texture may play a dominant role in interfacial bonding performance. (C) 2007 Elsevier B. V. All rights reserved.
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