Evaluation of physical properties of thermopressing bioplastics made from cassava flour
Technological innovations in plastics made from renewable resources require knowledge of their properties and functional characteristics to identify their qualities and competitive advantages over materials made from nonrenewable resources. This report aims to study, the behavior of the mechanical properties, density and color (L* a* and b*) of bioplastics made from gelatinized cassava flour of variety MPER-183, reinforced with fique fiber. Bioplastics were obtained by compression molding technique by varying the pressure (0, 20 and 40 psi) and temperature (180, 190 and 200°C). The variables temperature and compression pressure significantly affected (p<0,05) the mechanical properties, color and density of bioplastics, identifying conditions at 180°C and 0 psi pressure, as the most favorable for L * a * b *, high values of flexural strength, flexural elastic modulus and low density, while the temperature of 190°C and pressure of 0 psi, were suitable for obtaining higher values of tensile strength and tensile elastic modulus.
Main Authors: | Navia Porras, Diana Paola, Bejarano Arana, Natali |
---|---|
Format: | Digital revista |
Language: | spa |
Published: |
Universidad del Cauca -Facultad de ciencias Agrarias
2014
|
Online Access: | https://revistas.unicauca.edu.co/index.php/biotecnologia/article/view/346 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Bioplastics made up of fruit puree.
by: MATTOSO, L. H. C., et al.
Published: (2015-12-09) -
Effect of the screw configuration on physical properties of starch bioplastics.
by: ORTIZ, J. A. R., et al.
Published: (2012-10-22) -
Extrudability of cassava flour, water and by-products of renewable fuels industry to produce bioplastic.
by: RUANO ORTIZ, J. A., et al.
Published: (2011-01-25) -
Thermal properties of bioplastics obtained from mixtures of cassava and corn starch.
by: ORTIZ, J. A. R., et al.
Published: (2012-10-15) -
Characterization of foams obtained from cassava starch, cellulose fibres and dolomitic limestone by a thermopressing process
by: Schmidt,Vivian Consuelo Reolon, et al.
Published: (2010)