Effect of manufacturing method and aging environment on painted automotive carbon fibre composite surfaces

de Souza, M.L., Mardel, J.I. and Fox, B.L. 2012, Effect of manufacturing method and aging environment on painted automotive carbon fibre composite surfaces, Applied composite materials, pp. 1-13.

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Title Effect of manufacturing method and aging environment on painted automotive carbon fibre composite surfaces
Author(s) de Souza, M.L.
Mardel, J.I.
Fox, B.L.
Journal name Applied composite materials
Start page 1
End page 13
Total pages 13
Publisher Springer
Place of publication Dordrecht, The Netherlands
Publication date 2012-11
ISSN 0929-189X
1573-4897
Keyword(s) aging
automotive
carbon fibre composites
environmental degradation
epoxy
surface analysis
Summary In this paper, the effect of various aging environments on the painted surface finish of unidirectional carbon fibre composite laminates, manufactured by autoclave and a novel out-of-autoclave technique was investigated. Laminates were exposed to water immersion, 95 % relative humidity and cyclic environments for 552 h and the surface finish was evaluated using visual and wave-scan distinctness of image (DOI) techniques. It was found that the laminate surface finish was dependent on the amount of moisture in the aging test. Minor surface waviness occurred on the laminates exposed to the cyclic test, whereas, surface waviness, print through and DOI values were all significantly higher as the laminates absorbed larger quantities of moisture from the hygrothermal and hydrothermal tests. The water immersion test, which was the most detrimental to the surface finish of the painted laminates, produced dense blistering on the autoclave manufactured laminate surface whereas the out-of-autoclave laminate surface produced only a few. It was found that the out-of-autoclave laminate had high substrate surface roughness which resulted in improved paint adhesion and, therefore, prevented the formation of surface blistering with aging. © 2012 Springer Science+Business Media Dordrecht.
Language eng
Field of Research 090202 Automotive Engineering Materials
091202 Composite and Hybrid Materials
Socio Economic Objective 880108 Road Public Transport
HERDC Research category C1.1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30051132

Document type: Journal Article
Collection: Institute for Frontier Materials
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