Development of non-toxic polymer coatings with improved biofoul release properties Conference Paper uri icon

abstract

  • The corrosion resistance of steel panels coated with crosslinked siloxanes has been evaluated by electrochemical impedance spectroscopy (EIS) during exposure to 0.5 N NaCl. Two fluorinated and a nonfluorinated pentasiloxane have been prepared to develop non-toxic polymer coatings with improved biofoul release properties. Depending on the terminal epoxy group type, two different crosslinking/cure chemistries were utilized. The first type of crosslinking reaction involved room temperature UV cure with a photo-acid catalyst and the second crosslinking reaction was phenol-catalyzed thermal crosslinking with α,ω-diaminoalkanes [NH2-(CH2) n-NH2]. The EIS data suggest that the nonfluorinated pentasiloxane provided better corrosion protection than the two fluorinated pentasiloxanes and that room temperature UV cure with a photo-acid catalyst provides better corrosion protection than phenol-catalyzed thermal crosslinking.

author list (cited authors)

  • Kuş, E., Grunlan, M. A., Weber, W. P., & Mansfeld, F.

publication date

  • December 2005