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Evaluation of the Performance Enhancement of Silicone Biofouling-Release Coatings by Oil Incorporation
Biofouling
  • Kathryn Truby, GE Corporate Research and Development - New York
  • Christina Wood, GE Corporate Research and Development - New York
  • Judith Stein, GE Corporate Research and Development - New York
  • James Cella, GE Corporate Research and Development - New York
  • John Carpenter, GE Industrial Systems - New York
  • Christopher Kavanagh, Florida Institute of Technology - Melbourne
  • Geoff Swain, Florida Institute of Technology - Melbourne
  • Deborah Wiebe, Bridger Scientific, Inc. - Massachusetts
  • David Lapota, SPAWAR Systems Center - California
  • Anne Meyer, University at Buffalo - New York
  • Eric Holm, SPAWAR Systems Center - Maryland
  • Dean Wendt, University of Hawaii at Honolulu
  • Celia Smith, University of Hawaii at Honolulu
  • Jean Montemarano, SPAWAR Systems Center - Maryland
Publication Date
1-1-2000
Abstract

In response to increased evidence of ecosystem damage by toxic antifouling paints, many researchers have developed nontoxic silicone fouling release coatings. The fouling release capability of these Systems may be improved by adding nonbonding silicone oils to the coating matrix. This idea has been tested by comparing the adhesion strength of hard- and soft-fouling organisms on a cured polydimethylsilicone (PDMS) network to that of the same network containing free polydi-methyldiphenylsilicone (PDMDPS) oil at five exposure sites in North America and Hawaii. Fouling coverage is discussed, together with the bioadhesion data, to emphasize that although these coatings foul the fouling is easily removed. The partitioning of the incorporated oil upon exposure of the coatings to a simulated marine environment containing sediment was determined. Less than 1.1 wt% of the incorporated oil was lost from the coating over one year, and the toxicity of these coatings was shown to be minimal to shrimp and fish. Brush abrasion wear was greater for coatings containing free oil, but the modulus of elasticity was not appreciably decreased by the addition of 10wt% free oil.

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Publisher statement
This is an electronic version of an article published in Biofouling.
Citation Information
Kathryn Truby, Christina Wood, Judith Stein, James Cella, et al.. "Evaluation of the Performance Enhancement of Silicone Biofouling-Release Coatings by Oil Incorporation" Biofouling Vol. 15 Iss. 1 (2000) p. 141 - 150
Available at: http://works.bepress.com/dwendt/21/