Eventos Anais de eventos
CONEM 2018
X Congresso Nacional de Engenharia Mecânica
CHARACTERIZATION OF NATURAL FIBRE REINFORCED HYBRID COMPOSITES
Submission Author:
Rosemere de Araujo Alves Lima , RJ , Brazil
Co-Authors:
Rosemere de Araujo Alves Lima, DANIEL KIOSHI CAVALCANTI, Jorge Neto, DOINA BANEA
Presenter: Rosemere de Araujo Alves Lima
doi://10.26678/ABCM.CONEM2018.CON18-0215
Abstract
With the increase in the use of composite materials in several industrial applications (such as in the aeronautics, automotive and defense industries), the need for the development of materials with low density and mechanical properties equivalent to existing composites, but with reduced costs and better relation between resistance and ductility. Thus, a new classification for these materials has appeared, named hybrid composites, which are characterized by the presence of more than one type of reinforcement that will give the final laminate characteristics similar to the materials that compose it. Among the existing hybrid matrix polymer composites are those reinforced with synthetic, natural or with both types of fibres. In particular, hybrid composites reinforced with mixed or only natural fibres have gained great visibility in recent years due to characteristics such as: low environmental impact, carbon emission levels during their production process and low density, despite having low interfacial adhesion in matrices polymer. In this way, this work aims to characterize two types of hybrid composites reinforced with natural fibres (jute + sisal, jute + curauá) and a jute laminate by tensile, flexural and impact tests in the untreated and alkalinized conditions. Afterwards, scanning electron microscopy images were performed in order to verify the influence of the application of superficial chemical treatment on the fracture type of the composites studied. It is expected that at the end of the research the alkaline composites present higher results in relation to the untreated composites and, in particular, that the hybrid composites present better mechanical properties in relation to the laminate of only jute.
Keywords
Natural hybrid composites, Curauá, Juta, Sisal
