The adhesive properties of an anti-corrosion silane-zeolite coatings on aluminium substrates have been evaluated in this work. The coated samples were obtained by dip-coating sol-gel solution. Four different composite coatings at increasing zeolite amount (60-90 wt% of zeolite) have been investigated. The composite coatings evidenced a high hydrophobic behaviour (contact angle between 125°and 140°) and good adhesive properties with the aluminium substrate. The best results were obtained at low concentrations of zeolite. A structural model of the composite coating able to interpret phenomenologically the performances of this new protective coating has been proposed.
Adhesion aspects of hydrophobic silane zeolite coatings for corrosion protection of aluminium substrate
L. Bonaccorsi;
2014-01-01
Abstract
The adhesive properties of an anti-corrosion silane-zeolite coatings on aluminium substrates have been evaluated in this work. The coated samples were obtained by dip-coating sol-gel solution. Four different composite coatings at increasing zeolite amount (60-90 wt% of zeolite) have been investigated. The composite coatings evidenced a high hydrophobic behaviour (contact angle between 125°and 140°) and good adhesive properties with the aluminium substrate. The best results were obtained at low concentrations of zeolite. A structural model of the composite coating able to interpret phenomenologically the performances of this new protective coating has been proposed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
