Per: Damares da cruz barbosa nascimento (universidade federal do pará), Maurício maia ribeiro (instituto federal do pará), roberto tetsuo fujiyama (universidade federal do pará), jean da silva rodrigues (instituto federal do pará), alisson clay rios da silva (universidade federal do pará), SérgiO neves monteiro (instituto militar de engenharia), verônica scarpini candido (universidade federal do pará)
Abstract:
Composites are important materials for the development of new products for certain applications. These materials are composed of phases/microconstituent, which determine the properties and characteristics of the final product. Natural jute fiber has good mechanical properties, strength and is a renewable, biodegradable and economically viable reinforcement. On the other hand, wood residues, in turn, constitute a good reinforcement to the matrix, adhering exponentially. Therefore, the objective of this study is to evaluate the tensile properties of a hybrid composite of 25/25% of natural jute fiber and marupá wood residues, in a polyester matrix methyl - ethyl - ketone of 0.33% (v/v ). Subsequently, the hybrid composite was subjected to tensile testing, according to ASTM D638, and fractographic analysis by scanning electron microscopy. Thus, the results showed that the composite presented an average tensile strength equal to 25.13 MPa, with only 31.54% reduction when comparing the strength of the pure Matrix. The fractrographic aspect showed the presence of porosity in the material and pull out. Thus, in function of the mentioned characteristics, the hybrid composite presented a good performance, compared to the pure matrix.