Caracterización mecánica de un material compuesto de resina poliéster reforzada con fibra de bagazo de caña de azúcar para determinar las propiedades mecánicas

Abstract

The present experimental work refers to the fabrication of a composite material of polymeric matrix (polyester resin) and fiber reinforcement of sugar cane bagasse, with the purpose of diagnosing better mechanical properties that this material provides, two types of configurations have been used such as short longitudinal fiber and randomic fiber with different volumetric fractionation. The cane fiber was used due to its great amount of waste, it has a good elasticity, it is not corrosive as certain synthetic fibers, so with the new compound it would allow different uses. The tests were performed according to ASTM D3039-15 tensile, ASTM D7264-15 flexural and ASTM D5628-10 impact standards. A total of 90 specimens were tested, each one with different percentages and configurations such as the percentage values 8020, 7030, 6040 respectively. For the impact test, the percentage value 6040 of randomic configuration obtained the highest average failure energy with a total average of 0.8396 (J). As a result in the bending test, group 2 concluded that it obtained a percentage value (8020 with randomic configuration) which acquired the best results of maximum stress of 22.15 MPa, in the tensile and flexural test, group 3 with a percentage value of 7030 with a short longitudinal configuration obtained the best modulus of elasticity of 1435 and 1870.4 GPa.