Adhesive technology has long played a pivotal role in various industries, from construction to packaging, with substantial global consumption. However, the over-reliance on petrochemical-based adhesives has raised concerns about environmental impact and cost. This research aims to develop eco-friendly, cost-effective adhesive alternatives using cassava starch, a renewable agricultural resource. The preparation and characterization of wood adhesives from cassava starch involved several phases, beginning with the extraction of starch from cassava tubers, followed by proximate analysis, chemical synthesis, and production of adhesives by blending extracted cassava starch with a gelatinization enhancer (hydrochloric acid/sodium hydroxide) and a viscosity enhancer, sodium tetraborate (Borax) while being heated and stirred on a magnetic stirrer kept at 80 ℃ and 250 rpm. Further characterization was done by Fourier Transform Infrared Spectroscopy (FTIR) on the adhesive, giving information about the functional groups present in the adhesive. The extracted cassava starch was tested to contain about 7.924% moisture, 1.180% ash, 6.916% crude protein, 0.283% crude fat, 1.737% crude fiber, and 81.962% carbohydrates. The FTIR spectrum showed a strong band with strong intensity at 3392 cm-1, this signal indicates an O-H stretch indicating the presence of a hydroxyl group among others. In conclusion, the findings from this research suggest that cassava starch holds great promise as a renewable and sustainable raw material for wood adhesive production.
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Olaoti et al. (2024) studied this question.
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