Aplicabilidad de un material compuesto con matriz polimérica reforzado con fibras de planta de mora (Rubus Glaucus) en partes interiores de carrocerías de la industria carrocera de Tungurahua

Abstract

The present research is based on the experimentation of a composite material with polymer matrix and reinforced with blackberry plant fiber. This type of fiber is proposed, due to that the Tungurahua province has a planted area of 3,673 hectares of this plant, which are pruned monthly and its agricultural wastes are burned because there is no application for them, producing large amounts of CO2 that contaminates the environment, for that reason the fiber that was used as a reinforcing material was obtained from these agricultural wastes. Were fabricated test tubes with different configurations, volumetric fractions and manufacturing process, which were tested under some policies like ASTM D3039 for tensile strength, ASTM D7268 for flexion and ASTM D5628-10 for impact, in order to obtain mechanical properties such as modulus of elasticity, maximum stress (pulling and flexion), flexural modulus and maximum impact strength or absorbed energy. From the study, it was determined by statistical analysis that group 6, formed by 70 % of polymer matrix and 30 % of reinforcement of blackberry plant fiber showed better characteristics, having a tensile strength equal to 18.62 MPa, resistance at bending equal to 46.9 MPa and absorbed energy equal to 1.2156 J. Accordingly, the hypothesis raised in this research is accepted and therefore the composite material accomplish with the minimum mechanical properties required in the internal componentes of bodywork industry bodies.