Elaboración de láminas de papel en base a quitosano obtenido a partir de cáscaras de camarón, como una alternativa al uso de papel de celulosa

Abstract

This project presents the synthesis of films made from chitosan, which was obtained from the deacetylation of the chitin present in shrimp shells. The characterization of the chitosan obtained and that of a commercial chitosan of the Sigma Aldrich brand CAS 9012-76-4 was also carried out, through the processes of determination of the deacetylation degree and calculation of the molecular weight of chitosan from FTIR spectrophotometry. Once the chitosan was obtained, films were prepared using 3 different formulations varying the concentration of chitosan – cellulose pulp - latex, a required mix to obtain a compact structure. Subsequently, the films were characterized, assessing the thickness and grammage that they should have. For the chitosan samples, the best result obtained a deacetylation degree of 82.48% and a molecular weight of 198700 g/mol, results that allowed to continue with the preparation of the films, recommending the formulation containing 2g of chitosan, 2ml of latex and 10ml of cellulose pulp.