Análisis de homogenización en paneles aglomerados con refuerzo de cascarilla de arroz

Abstract

Objective: To morphologically analyze by means of scanning electron microscopy (SEM), agglomerated boards made from rice husk and Hidropul 400 and boards made from wood fibers and glue. Methodology: By each test piece of 7.3 x 3.6 x 1.5 cm, two samples were taken from the external and internal sections on each one of the boards to be analyzed, thin-layer graphite coatings were made to each one of them; by means of the scanning electron microscope, micrographic shots were obtained in ranges from 50x to 2000x. Results: It was evidenced that the panel made from rice husk had breakages in its internal structure, due to porosity, the waxy layers of its coating, the high presence of silica and the presence of water inside the adhesive, showing irregularities in adhesion between particles and low mechanical properties. Conclusions: Although the studied rice husk panel did not obtain adequate structural properties, it has great applications for interior design. In addition, due to its porous structure its potential as sound-absorbing material is considered. In the same way, the material can be improved by pre-treating the husk or combining it with other, more woody plant fibers such as wood waste, bamboo, coconut fiber, among others.