Caracterización de un material compuesto de una matriz de poliéster reforzado con fibra de corteza de Eucalyptus Globulus mediante moldeo por compresión

Abstract

In Chapter I the current situation of composite materials in industry and the variables involved in their mechanical characterization were studied, as well as the advantages of using a natural fiber as reinforcement of a polymeric matrix. In chapter II, a mold in ASTM A36 steel was designed and built, to obtain plates with different volumetric fractions, and then be laser cut under the dimensions specified in the ASTM D3039M-17, ASTM D7264M-15 and ASTM D5628M-10 standard for tensile tests, flexion and impact respectively. The volumetric fractions of composite material produced are 70% -30%, 80% -20% and 90% -10% of matrix and reinforcement respectively. In chapter III the mechanical behavior of the composite material was evaluated, where the group of specimens with 70% matrix and 30% reinforcement have the highest value of tensile strength and impact energy with 13. 54 MPa and 0.75 J respectively, on the other hand, the group of specimens with 90% matrix and 10% reinforcement presented the highest value of maximum bending stress with 34.02 MPa. Pure resin specimens were developed and tested, then compared with the mechanical properties of the composite material, where it is observed that the maximum tensile stress and the maximum bending stress decrease, while the tensile modulus of elasticity, modulus of flexural elasticity and impact resistance are increased, all this with respect to resin. Finally, it was investigated that the composite material can be used in the furniture area.