2023-07-192023-07-192023-07-07NUNES, Jean Anthony Cavalcante. Compósitos híbridos de fibra de vidro e lama vermelha: propriedades físicas, mecânicas e flamabilidade. Orientador: Deibson Silva da Costa. 2023. 58 f. Trabalho de Curso (Bacharelado em Ciência e Tecnologia) – Campus Universitário de Ananindeua, Universidade Federal do Pará, Ananindeua, 2023. Disponível em: https://bdm.ufpa.br:8443/jspui/handle/prefix/5876. Acesso em:.https://bdm.ufpa.br/handle/prefix/5876The interest of researchers in new technologies that enable environmental preservation and reuse of waste has grown exponentially in the last century. The study with composite materials shows a huge potential to combine fibers with industrial waste to produce a new sustainable material. Thus, this work aimed to evaluate the influence of fiberglass length in a hybrid composite (glass fiber and red mud). The method used to manufacture the composites consisted of the hand lay up manual lamination process. The polymeric matrix used was the isophthalic polyester resin together with the cobalt accelerator (1.5% v/v) and the MEK-P catalyst (1% v/v), where composites were made with glass fibers in lengths of 15 , 30 and 45 mm and in the fixed mass proportion of 5%. The red mud residue was manually sieved in the Tyler series 100 mesh (0.149 mm) granulometry. The residue was submitted to morphological characterization by Scanning Electron Microscopy and X-ray Diffraction. Hybrid composites were made in the mass fractions of 5% glass fiber with a length of 45 mm (fiber length used after carrying out the mechanical tests where the FV 45 showed a better result, in relation to the other compositions) and the red mud with a mass fraction of 10%. After making the composite boards, they were subjected to physical characterization tests of Apparent Specific Mass, Apparent Porosity and Water Absorption; mechanical test of tensile strength and flexural strength and horizontal flammability test. The results showed that the red mud has a great diversity of particles of different shapes and sizes, according to the morphological characterization. The X-ray Diffraction showed the main minerals present, such as Hematite and Sodalite. The physical properties showed that the hybrid composite had an increase in Water Absorption, Apparent Porosity and Apparent Density. In the mechanical results, an increase in tensile strength is observed according to the size of the glass fiber, and with the addition of the red mud residue there was a significant improvement, being up to 96.45% superior to the 15 mm glass fiber. In the bending test, there was a tension increase of 19.82% of the hybrid composite in relation to the 15 mm glass fiber. As for the flammability test, the hybrid composite showed a useful flame retardancy, classifying the material as SI (no ignition), thus showing that the material performs well in this regard.Acesso AbertoFibraResina PoliésterPropriedades mecânicasCompósitoFiberPolyester resinMechanical propertiesCompositeCNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICATrabalho de Curso - Graduação - Monografia