Resíduo de sisal: uma alternativa sustentável como reforço particulado em compósito polimérico com adição de agente silano

Abstract

Recently, polymeric composites reinforced with natural fibers have been gaining prominence in the development of research, with the objective of replacing synthetic materials used in reinforcements. However, poor interfacial adhesion of natural fibers with the polymer matrix can negatively affect the mechanical and physical properties of composites. The APTES type silane coupling agent was applied to composites in order to promote better adhesion between the materials and consequently bring more satisfactory results to the mechanical and physical properties of polymeric matrix composites reinforced with residual sisal fiber powder. The results showed that the tensile strength of the composite is significantly dominated by particle size rather than the amount of sisal powder and the addition of the silane coupling agent APTES, and for the water absorption capacity the content of the sisal fiber powder interferes directly in this percentage.