Skip to content

The effects of incorporated silicone oils and calcium carbonate on the resistance to settlement and the antifouling performance of a silicone elastomer

Research output: Contribution to journalArticle

The surfaces of elastomeric coatings based on poly(dimethylsiloxane), unfilled or containing calcium carbonate filler or with filler and silicone oils, have been characterised from topographic and surface indentation measurements by atomic force microscopy. The resistance of the coatings to marine biofouling has been assessed in a sea-exposure trial, in which the strengths of attachment of some barnacles and tubeworms have been measured. In laboratory experiments, the materials have been challenged with oyster larvae (Crassotrea gigas), barnacle cyprids (Balanus amphitrite) and brown algal embryos (Sargassum muticum). Using a linear stress flow cell, the stresses required to detach settled larvae and embryos by fluid flow have been measured. The attachment of barnacles to the coatings was promoted by the microscopic surface roughness produced by protruding particles of filler. Oyster larvae and algal embryos were more readily displaced from surfaces that had been characterised as relatively soft, or from oil-bloomed surfaces.
Original languageEnglish
Pages (from-to)2183-2198
Number of pages16
JournalJournal of Adhesion Science and Technology
Volume25
Issue number17
DOIs
Publication statusPublished - 2011

Related information

Facilities/Equipment

Relations Get citation (various referencing formats)

ID: 108134