Caracterización de la interfaz de un material compuesto de matriz polimérica reforzado con fibra natural obtenida por medio de dos procesos diferentes con el uso de microscopía : caracterización de la interfaz de un material compuesto de matriz polimérica reforzado con fibra natural obtenida por medio de estratificación manual con el uso de microscopía.

Abstract

This work describes the procedure carried out to obtain specimens of polymer matrix composite materials with reinforcement of rope fiber fabric, using the manufacturing method by manual stratification. Once the specimens were obtained, they were characterized by standardized traction, bending and impact tests according to the ASTM D3039/D3039 M-17, ASTM D7264/D7264 M-15 and ASTM 5628 standards, respectively, in order to determine their mechanical properties. . With the data obtained, the values ​​of resistance to breakage in tensile and flexural specimens were calculated, while, in the impact specimens, the average failure height and the average failure energy were calculated, with which the energy was determined. that the composite material can absorb before fracturing. After carrying out the standardized tests on the specimens, the matrix-reinforcement interface was examined by means of optical microscopy to be able to visualize the level of adhesion and compaction between them and to intuit conditions that produced the failures of the material in the tests carried out, as well as , observe possible manufacturing defects present in the specimens such as pores, fissures or cracks. Finally, the results of the mechanical properties in composite material specimens obtained through the manual stratification technique are compared with the specimens obtained by vacuum infusion to establish the technique that provides better mechanical properties in the manufacture of reinforced polymer matrix composite materials. with natural fiber fabrics.