Investigation of the effect of zinc oxide-modified gum Arabic on polar substrates

Abstract

Gum Arabic solution, a water-based adhesive, was modified with zinc oxide filler and the formulation was applied on wood, ceramic, glass and textile substrates. A strip of paper was used as a common adherent to all the
substrates. Zinc oxide increased the viscosity of 30wt% gum Arabic solution and increased bond strength on all the substrates except on glass where low bond strength was observed. The low bond strength on glass was perhaps due
to localized stresses in adhesive film. Wood, ceramic and glass had cohesive failure on the paper adherent while adhesive failure on the paper adherent was observed on the textile substrate.