Thermal and mechanical analysis of sisal/glass/epoxy hybrid composites

• Grant number: 14/08120-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2015
• End date: April 30, 2016
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Andressa Cecília Milanese
• Grantee: Natalia Querido Verreschi
• Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil

Abstract

In the present context from development of new technologies, that respect and preserve the planet's natural resources, processing of composites with natural fibers has been extensively studied and used in construction, automotive parts and even in aerospace materials. So, in this research, were chosen two hybrid composite of glass and sisal fibers in epoxy resin matrix for the study, which only differ on the location of the sisal and glass layers, maintaining the same number of total layers. The sisal is an abundant fiber in Brazil, coming from the northeast, which has one of the highest mechanical strength among the natural fibers and has low price, what is an advantage for the use of this fiber on study while; glass fibers were added to increase the mechanical reinforcement. Processed composites will be thermally tested by thermogravimetry (TGA), mechanical-dynamic analysis (DMA) and differential scanning calorimetry (DSC), beyond the mechanical bending test by 3 points and the physical characterization from gas pycnometry test, so that thermal and mechanical behavior are analyzed, aiming to use the composite reinforcing materials or structures.