2021-01-212021-01-212020-11-30ALMEIDA, Lucas Rezende. Reaproveitamento do resíduo de minério de ferro em compósitos de matriz polimérica.Orientador: Deibson Silva da Costa. 2020. 83 f. Trabalho de Curso (Bacharelado em Engenharia de Materiais) – Campus Universitário de Ananindeua, Universidade Federal do Pará, Ananindeua, 2020. Disponível em: https://bdm.ufpa.br:8443/jspui/handle/prefix/3262. Acesso em:.https://bdm.ufpa.br/handle/prefix/3262In view of the environmental impact caused by the disposal of industrial waste and aiming at its application in new materials, polymeric composite materials with iron ore residues with a particle size of less than 100 mesh were produced in this work. The composites were made using the manual process (hand lay-up) associated with compression, with proportions in volume varying between 0 %, 10 %, 20 % and 30 %. The matrix used was isophthalic polyester resin, with an initiator in the proportion of 1 % in v/v and activator in the proportion of 1.5 % v/v. The mineralogical analysis of the residue was performed using the X-Ray Diffraction technique, morphological analysis was performed using the Scanning Electron Microscope - SEM and Optical Microscope - MO, the chemical analysis was through Dispersive Energy Spectroscopy - EDS and Ray Fluorescence X – FRX. After the stage of making the composite materials and the preparation of the specimens, physical tests of water absorption, apparent porosity and apparent specific mass were carried out according to the standards ASTM D 570, ASTM D 2734 and ASTM D 792, respectively, and the mechanical tests of flexion (ASTM D 790) and traction (ASTM D 3039), with the analysis of the fracture surface performed using the SEM. The flame propagation rate was obtained by means of a horizontal flammability test (ASTM D 635). The mineralogical analysis of the residue showed the main peaks corresponding to hematite, magnetite and quartz, corroborated by the morphology of the residue where it was possible to observe particles of hematite and magnetite. Chemical analysis showed higher amounts of iron, aluminum and silicon oxides. It was observed that the physical properties of apparent porosity and apparent specific mass increased and water absorption decreased as the compositions increased. Mechanically, the composites showed results superior to that of the full resin for the tensile and flexion test, obtaining more expressive values for the flexion test, acting as reinforcement load for this test. The fractographic analysis demonstrated a good distribution of the residues in the matrix and showed the predominant failure mechanisms in the composite. As for flame retardation, the addition of the residue significantly impacted the performance of the material, even extinguishing the flame in the proportions of 20 % and 30 %. Based on these analyzes, producing composites with iron ore residue becomes a potential alternative for reusing the waste, presenting good properties, which makes them a good candidate for certain applications, such as panels, partition walls, ceilings and other applications of this nature, in addition to promoting waste management and reducing environmental impact.Acesso AbertoMateriais compósitosResíduoMinério de ferroComposite materialsResidueIron oreCNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::METALURGIA EXTRATIVA::TRATAMENTO DE MINERIOSTrabalho de Curso - Graduação - Monografia