Title
Fluorescence microscopy techniques for quantitative evaluation of organic biocide distribution in antifouling paint coatings: Application to model antifouling coatings
Author
Goodes, L.R.
Dennington, S.P.
Schuppe, H.
Wharton, J.A.
Bakker, M.
Klijnstra, J.W.
Stokes, K.R.
Publication year
2012
Abstract
A test matrix of antifouling (AF) coatings including pMMA, an erodible binder and a novel trityl copolymer incorporating Cu 2O and a furan derivative (FD) natural product, were subjected to pontoon immersion and accelerated rotor tests. Fluorescence and optical microscopy techniques were applied to these coatings for quantification of organic biocide and pigment distribution. Total leaching of the biocide from the novel copolymer binder was observed within 6 months of rotor immersion, compared to 35% from the pMMA coating. In pontoon immersions, 61% of the additive was lost from the pMMA coating, and 53% from the erodible binder. Profiles of FD content in the binders revealed an accelerated loss of additive from the surface of the CDP resulting from rosin degradation, compared to even depletion from pMMA. In all samples, release of the biocide was inhibited beyond the Cu 2O front, corresponding to the leached layer in samples where Cu 2O release occurred. © 2012 Copyright Taylor and Francis Group, LLC.
Subject
Mechatronics, Mechanics & Materials
MPC - Materials Performance Centre
TS - Technical Sciences
Materials
Industrial Innovation
biocides
diffusion
fouling
leaching
microscopy
To reference this document use:
http://resolver.tudelft.nl/uuid:8561926f-4484-4046-bf9b-8548ebd26a0f
TNO identifier
462191
ISSN
0892-7014
Source
Biofouling, 28 (6), 613-625
Document type
article