Release characteristics of reattached barnacles to non-toxic silicone coatings
Titel:
Release characteristics of reattached barnacles to non-toxic silicone coatings
Auteur:
Kim, Jongsoo Nyren-Erickson, Erin Stafslien, Shane Daniels, Justin Bahr, James Chisholm, Bret J.
Verschenen in:
Biofouling
Paginering:
Jaargang 24 (2008) nr. 4 pagina's 313-319
Jaar:
2008
Inhoud:
Release mechanisms of barnacles (Amphibalanus amphitrite or Balanus amphitrite) reattached to platinum-cured silicone coatings were studied as a function of coating thickness (210-770 μm), elastic modulus (0.08-1.3 MPa), and shear rate (2-22 µm s-1). It was found that the shear stress of the reattached, live barnacles necessary to remove from the silicone coatings was controlled by the combined term (E/t)0.5 of the elastic modulus (E) and thickness (t). As the ratio of the elastic modulus to coating thickness decreased, the barnacles were more readily removed from the silicone coatings, showing a similar release behavior to pseudobarnacles (epoxy glue). The barnacle mean shear stress ranged from 0.017 to 0.055 MPa whereas the pseudobarnacle mean shear stress ranged from 0.022 to 0.095 MPa.