The adhesion of the barnacle, Balanus improvisus, to poly(dimethylsiloxane) fouling-release coatings and poly(methyl methacrylate) panels: The effect of barnacle size on strength and failure mode
- 1 January 2001
- journal article
- Published by Informa UK Limited in Journal of Adhesion Science and Technology
- Vol. 15 (12), 1485-1502
- https://doi.org/10.1163/156856101753213321
Abstract
Measurements were made of the bond strength of cyprids and barnacles (Balanus improvisus) attached to poly(dimethylsiloxane) (PDMS) fouling-release coatings and poly(methyl methacrylate) (PMMA) panels as a function of barnacle base plate size (0.05-90 mm2). The vertical forces necessary to dislodge cyprids and newly metamorphosed barnacles (base plate < 0.5 mm2) were found to be equal for the two different substrates. This unexpected result was explained by the occurrence of cohesive failure in the cyprid/barnacle part. A significantly higher detachment force was observed for larger barnacles (base plate > 0.5 mm2) when dislodged from the PMMA compared to the PDMS. Analysis of the failure surfaces with light microscopy and scanning electron microscopy (SEM) showed a gradual transition in failure mode from a total cohesive within the barnacle to a mixed failure mode during barnacle growth. This transition, which is a measure of the balance between the cohesive strength of the barnacle base plate and the adhesion bond to the surface, occurs earlier or with smaller barnacles when detached from the PDMS. The quantification of the remaining fraction of the base plate at the polymeric failure surfaces appears to be a function of barnacle bioadhesive bond strength and is, therefore, suggested to be used as a new parameter for evaluating the release properties of new coatings formulations.Keywords
This publication has 33 references indexed in Scilit:
- Analysis of behavioural rejection of micro-textured surfaces and implications for recruitment by the barnacle Balanus improvisusJournal of Experimental Marine Biology and Ecology, 2000
- Impact of Tributyltin on Marine InvertebratesEcotoxicology, 2000
- Microtextured surfaces: Towards macrofouling resistant coatingsBiofouling, 1999
- Imposex in the commercial snail Bolinus brandaris in the northwestern MediterraneanEnvironmental Pollution, 1998
- TributyltinOcean & Coastal Management, 1998
- Performance and effectiveness of non‐stick coatings in seawaterBiofouling, 1997
- The surface properties of silicone elastomers Exposed to seawaterBiofouling, 1996
- Marine natural product antifoulants: Status and potentialBiofouling, 1996
- The influence of low surface energy materials on bioadhesion — a reviewInternational Biodeterioration & Biodegradation, 1994
- A low surface free energy approach in the control of marine biofoulingBiofouling, 1992