Evaluación de la adhesión de un pegante realizado con almidón nativo de yuca (Manihot Sculenta Crantz) variedad M-Tai

In this study, the adhesive and shell forces of a glue were evaluated. The glue was made with native cassava starch (Manihot sculenta Crantz) variety M-Tai and sodium hydroxide was used as a hydrolyzing agent. In the preparation of the glue, five solutions of native cassava starch were valuated (10, 20, 30, 40 and 50 % w/v) and four concentrations of NaOH (0, 0.66, 1.33 and 2 % w/w). The results indicated that the paper-paper, cardboard-paperboard and paper-glass joints, made with the adhesives made with 40 %-2 %, 40 %-0 % and 50 %-0 % w/v -w/w, of cassava starch and NaOH respectively, showed higher adhesion strength and the paper-paper, cardboard-paperboard and paper-glass joints, which showed greater frictional force as an indication of greater durability of the glue, were the glued with 50 %-2 %, 50 %-1.33 % and 50 %-2 % w/ v - w/w, of starch and NaOH respectively. The paste based on cassava starch did not present significant differences (p<0.05) with three commercial adhesives (Colbocol, Supertack and Pegajoso), having better adhesiveness and durability in the bonds made with paper-paper and glass-paper substrates.

• Fecha de publicación: 2018
• Institución: Universidad de América
• Repositorio: Lumieres
• Idioma: spa
• OAI Identifier: oai:repository.uamerica.edu.co:20.500.11839/7024
• Acceso en línea: https://doi.org/10.29097/2011-639X.181
• Palabra clave: Pegante; Agente hidrolizante; Adhesividad; Cáscara; Sustratos; Adhesive; Hydrolyzing agent; Adhesive; Shell; Substrates
• License: Atribución – No comercial – Sin Derivar