Starch Based Adhesives

Abstract

The production of adhesive from cassava root IITA variety TMS 94/0026 was performed. Applications of starch based adhesive are limited due to its unsuitable properties. Improvements in properties of adhesives produced were achieved by investigating the effects of temperature, mass (concentration) of the viscosity enhancer /stabilizer (borax) and gelatinization modifier (acidic, hydrogen chloride acid (HCl) and basic sodium hydroxide (NaOH)) and its concentration on the properties (viscosity, density and pH) of the adhesive produced. The effect of the gelatinization modifier (HCL and NaOH) on the drying time and bond strength of the adhesive was also investigated. Results obtained provide a wide range of conditions for producing starch-based adhesives for diverse applications and required properties. The adhesives produced with sodium hydroxide as its gelatinization modifier had a stronger bond and a maximum drying time of 7.20 minutes compared to a drying time of 4.16 minutes for the adhesive produced with hydrogen chloride acid.