Condensed Tannins from Mangrove and Grape Pomace as Renewable Corrosion Inhibitors and Wood Adhesive

Abstract

The potential of tannins extracted from mangrove bark was tested as inhibitors of copper corrosion and and tannins from grape pomace and mangrove bark were used as wood adhesives. Anticorrosion properties were assessed through electrochemical properties, adsorption isotherms and surface observations. Adhesives were prepared and integrated into wood particleboards. The tannins extracted from mangrove barks acted predominantly as cathodic inhibitors and acted as efficient corrosion inhibitors. Particleboards produced from these tannins did not meet the European standard specifications for interior grade wood particleboard. Mangrove tannins can be use as corrosion inhibitors. Grape pomace and mangrove tannins are utilizable as adhesives for wood panels, although some formulation improvements are needed to satisfy the standards.