© Global Journal Of Pure And Applied Sciences . 2011. Vol. 17 No. 4
Publisher: Bachudo Science Co. Ltd
Investigation of The Effect of Zinc Oxide-Modified Gum Arabic On Polar Substrates
U. B. Agunwa, E. M. Enyiegbulam
KEYWORDS: Gum Arabic, Zinc oxide, Substrate, Bond, Strength.
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.
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