Evaluación de las propiedades mecánicas de biopelículas de celulosa de fibra de coco y zeolita a partir de diferentes formulaciones.

Abstract

This research work was based on evaluating the mechanical properties of biofilms from different formulations of coconut fiber cellulose and zeolite, comparing these results with national and international standards. The casting method was used in the elaboration of the biofilms and a 2k factorial design with two factors and three experimental repetitions was applied. The appropriate formulation of biofilms was evaluated visually, selecting the one with the best characteristics; the formulation of 1% - 1.3% cellulose and 0.2% - 0.5% zeolite was chosen. The mechanical properties were evaluated to measure its thickness (mm), modulus of elasticity (MPa), tensile strength (MPa) and percentage elongation at break (%). The results of the analysis of variance showed no significant differences between treatments, but between factors, it was observed that a higher cellulose and zeolite content increased the modulus of elasticity and tensile strength, but reduced the percentage of elongation at break. Zeolite significantly influenced the thickness and modulus of elasticity since a lower proportion of zeolite increased the thickness and a higher proportion of zeolite increased the modulus of elasticity. The results were compared with national and international standards, concluding that the optimal choice of treatment will depend on the mechanical properties of the desired biofilm for future applications.