Utilização da fibra de mandacaru para o desenvolvimento de compósitos poliméricos

Abstract

This work is an initial study of the Mandacaru’s utilization (Cereus jamacareu DC) as dispersed phase in polymeric composites for an application in Design area. The process of the composite samples had the mandacaru wood fiber in the form of granules were mixed with 59 HDPE (high density polyethylene) and the pure OREVAC in different concentrations.The physical, mechanical and morphological properties of composites with HDPE matrix and 20% and 40% Mandacaru wood were determinated through traction, flexion, density determination, water absorption and Eletronic Sweep Microscope (ESM) test. The Mandacaru wood shows a porous structure that can influence in the composite weight. A comparative research between the utilization of the Mandacaru wood and the Eucalyptus wood in the composite was realized. The results indicated that Mandacaru wood doesn’t interfere in material rigidity, and the increase of their concentration doesn’t influence in the traction and in the resistence of the composites. There wasn’t any change in the density composites by varying the type of wood. The absorption water results indicated that the wood chemistry composition can have influence on this property being necessary other researches to better conclusions.