Caracterización mecánica del material compuesto de matriz epoxi reforzada con fibra vegetal (algodón) y fibra natural de STIPA ICHU (pasto de páramo) con secado natural y precocido para determinar propiedades mecánicas en la fabricación de elementos livianos de alta resistencia.

Abstract

The present experimental work of mechanical characterization of a new composite material of epoxy matrix and fabric of Stipa Ichu + Cotton, with several parameters like the type of obtaining or drying of Stipa Ichu natural fiber (natural, precooked and natural drying with cleaning of NaOH) , Different volumetric fractions and variable reinforcement orientation, the study of this composite material has been proposed because we are located in an industrialized sector and are currently replacing the classical materials with polymer composites. The composite material is made to compression with two volumetric fractions 30% reinforcement-70% matrix and 45% reinforcement and 55% matrix, reinforcement orientations. The specimens were made in a steel mold and compressed, using mold release additives. Tensile, flexural and impact tests are performed based on ASTM D3039, ASTM D 7264, and ASTM D 5628 impact respectively. The data tabulated after the tests on the tensile, flexural and impact specimens are evaluated considering average values and standard deviation, determining the composite of best configuration to the composite case with a volumetric fraction of 70% matrix-30% reinforcement (tissue Of Stipa Ichu + cotton), with precooked fiber (stipa ichu) drying, cured for 23 days, with two layers of reinforcement, reinforcement orientation layer 1: 90°; Layer 2: 90°.