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Title: Surface cleaning technologies for the removal of crosslinked epoxide resin
Authors: Litchfield, Robert E.
Critchlow, Gary W.
Wilson, S.
Keywords: epoxides
metals
adhesion
non-stick
Issue Date: 2006
Publisher: © Elsevier
Citation: LITCHFIELD, R.E., CRITCHLOW, G.W. and WILSON, S., 2006. Surface cleaning technologies for the removal of crosslinked epoxide resin. International Journal of Adhesion and Adhesives, 26(5), pp. 295-303
Abstract: This study provides details of the use of laser ablation and sodium hydride cleaning processes for the removal of crosslinked epoxide and other residues from resin transfer moulding (RTM) tool substrates, as used in the aerospace industry. The requirement for removal of such contamination is so that the mould can be re-used, following the subsequent application of an external release agent. These tools are, typically, fabricated from steel, nickel or CFRP composite materials; this paper focuses on the use of nickel substrates. The requirement to clean large surface areas quickly to satisfy commercial restraints, compromises the degree of absolute cleanliness that can be obtained. However, in applications where cleaning time is not a constraint, laser cleaning can be a very gentle and efficient process; typically Nd:YAG lasers find application in this area. In contrast, high power lasers are desirable for industrial scale applications where large areas need to be cleaned quickly. In this instance pulsed CO2 lasers can be used. The use of sodium hydride was also found to be highly successful in removing crosslinked organic contamination providing that suitable hard rinse and drying operations were also carried out.
Description: This article has been accepted for publication in the journal, International Journal of Adhesion and Adhesives [© Elsevier]. The definitive version is available at: http://www.sciencedirect.com/science/journal/01437496.
URI: https://dspace.lboro.ac.uk/2134/861
ISSN: 0143-7496
Appears in Collections:Published Articles (Materials)

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