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Study of Oxetane Toughened Cationic UV Curable Marine Fouling Release Coating

Published online by Cambridge University Press:  15 March 2011

Zhigang Chen
Affiliation:
Center for Nanoscale Science and Engineering, North Dakota State University, 1805 NDSU Research Park Drive, Fargo, ND, 58102
Rachel Wagner
Affiliation:
Center for Nanoscale Science and Engineering, North Dakota State University, 1805 NDSU Research Park Drive, Fargo, ND, 58102
Sandeep Patel
Affiliation:
Center for Nanoscale Science and Engineering, North Dakota State University, 1805 NDSU Research Park Drive, Fargo, ND, 58102
Jongsoo Kim
Affiliation:
Center for Nanoscale Science and Engineering, North Dakota State University, 1805 NDSU Research Park Drive, Fargo, ND, 58102
Shane Stafslien
Affiliation:
Center for Nanoscale Science and Engineering, North Dakota State University, 1805 NDSU Research Park Drive, Fargo, ND, 58102
Justin Daniels
Affiliation:
Center for Nanoscale Science and Engineering, North Dakota State University, 1805 NDSU Research Park Drive, Fargo, ND, 58102
Lyndsi Vander Wal
Affiliation:
Center for Nanoscale Science and Engineering, North Dakota State University, 1805 NDSU Research Park Drive, Fargo, ND, 58102
Chavanin Siripirom
Affiliation:
Department of Coatings and Polymeric Materials, North Dakota State University, 1735 Research Park Drive, Fargo, ND, 58105
Bret Chisholm
Affiliation:
Center for Nanoscale Science and Engineering, North Dakota State University, 1805 NDSU Research Park Drive, Fargo, ND, 58102
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Abstract

To develop a cationic UV curable, tough fouling-release coating for marine vessels, a difunctional oxetane monomer was used to copolymerize with the epoxy-siloxane oligomer at loading levels from 10% to 40% wt.. The resulting coatings showed enhanced solvent resistance, impact resistance and modulus, while remained hydrophobic before and after immersion in artificial sea water. In marine microorganism bioassay, these oxetane toughened coatings showed no leachate toxicity and the coating surfaces were non-toxic to biofilm growth. The fouling removal performance for these coatings was found to be microorganism dependent. Live barnacle reattachment assay showed that the toughened coatings had a removal force comparable to the reference silicone coatings Dow Corning T2 and 3140.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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