Avaliação de características espectroscópicas de fibras de bambu após modificação superficial

Abstract

Knowing the man's need to develop work with new materials, the use of composites of the most varied sources grows in proportion to technological advances. With this, materials such as natural fibers have been highlighted, being used as reinforcement in structural composites, in order to increase their mechanical properties. In this context, the main objective of this work is to analyze the superficial changes of bamboo fibers after having passed through mercerisation and acetylation chemicals. These were carried out in order to remove wax, hemicellulose and part of the lignin, which are found on the surface of lignocellulosicfibers, in order to increase the adhesion of the fibers with the polymeric matrices. To analyze whether the proposed treatments were successful in the withdrawal of these compounds, the fibers were evaluated through the Scanning Electron Microscopy (SEM) before and after the treatments. The results showed that treatments, when performed properly, proved effective without providing structural damage to the fibers.