Adhesion of epoxy (pseudobarnacles) to glass that has been treated with hydrophobic carbosilane-based coatings

• Published in: Progress in organic coatings 2017-06, Vol.107, p.1-4
• Main Authors: Kohl, James G., Malicky, David M., Jones, Adam M.
• Format: Article
• Language: English
• Subjects: Adhesion; Carbosilane; Coating effects; Epoxy; Epoxy coatings; Glass; Heat treatment; Polydimethylsiloxane; Silicone resins
• ISSN: 0300-9440; 1873-331X
• DOI: 10.1016/j.porgcoat.2017.03.008

•Monolayer coatings of silacyclobutane were used to provide a release layer for epoxy adhesion.•Removal of epoxy from 1-methyl-1-chloro-1-silacyclobutane coating was similar to that from PDMS (70μm Sylgard 184).•Adhesion of epoxy to 1-methyl-1-chloro-1-silacyclobutane and 1,1’-dichloro-1-silacyclobutane coatings were modified by HT. Derivatives of silacyclobutane were applied as monolayer coatings to provide a release layer for epoxy adhesion. Pull-off tests of epoxy (pseudobarnacles) from both uncoated glass slides and glass slides coated with two silacyclobutane derivatives were performed in order to determine the effects of the silacyclobutane coating on adhesion. It was found that the type of silacyclobutane coatings and the heat treatment used affected the amount of force required to pull-off the epoxy from the glass. More specifically, a removal stress of 1.6MPa was achieved when using one silacyclobutane derivative. This pull-off stress is close to that of a much thicker polydimethylsiloxane, PDMS (70μm Sylgard 184™, 1.2MPa).