Cold spray metal embedment: an innovative antifouling technology

Vucko, M.V., King, P.C., Poole, A.J., Carl, C., Jahedi, M.Z., and de Nys, R. (2012) Cold spray metal embedment: an innovative antifouling technology. Biofouling, 28 (3). pp. 239-248.

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The study demonstrates that embedment of copper particles into thermoplastic polymers (polymers) using cold spray technology is an effective deterrent against fouling organisms. Two polymers, high-density polyethylene (HDPE) and nylon were metallised with copper powder using cold spray technology. After 250 days in the field, Cu-embedded HDPE and copper plate controls were completely free of hard foulers compared to Cu-embedded nylon and polymer controls which were heavily fouled with both soft and hard fouling. Antifouling (AF) success is related to the interaction between the properties of the polymers (elastic modulus and hardness) and the cold spray process which affect particle embedment depth, and subsequently, the release of copper ions as determined by analytical techniques. Embedding metal using cold spray equipment is shown to be an effective AF technology for polymers, in particular those that are difficult to treat with standard AF coatings, with efficacy being a function of the interaction between the cold spray metal and the polymer recipient.

Item ID: 22055
Item Type: Article (Research - C1)
ISSN: 1029-2454
Keywords: antifouling; biofouling; copper; polymer; HDPE; nylon
Date Deposited: 29 Aug 2012 11:29
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 50%
09 ENGINEERING > 0912 Materials Engineering > 091207 Metals and Alloy Materials @ 50%
SEO Codes: 86 MANUFACTURING > 8613 Transport Equipment > 861303 Nautical Equipment (excl. Yachts) @ 100%
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