Banca de DEFESA: ANA GOMES NEGRÃO
Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.DISCENTE : ANA GOMES NEGRÃO
DATA : 27/07/2018
HORA: 14:00
LOCAL: Miniauditório do PPGAU/UFRN
TÍTULO:
Pineapple leaf fiber composite pineapple and vegetable resin for use in architecture
PALAVRAS-CHAVES:
architectonical components; vegetal fiber; composite panel; alternative materials.
PÁGINAS: 142
GRANDE ÁREA: Ciências Sociais Aplicadas
ÁREA: Arquitetura e Urbanismo
RESUMO:
Nowadays is possible to observe the return of research, even in national or international context, that seeks alternative materials instead conventional ones, in industrial uses, with emphasis in biomass residue, as fibers and vegetal resin, looking to minimize the problems caused to natural environment and to substitute harmful products to human been. This research aims to produce composite materials with pineapple leaf fiber, designed in this work as PALF, and bi-component polyurethane derived from Castor Oil, destined to architectonical components and furniture production. Brazil is one of the biggest world producers and exporter of pineapple, and the states of Paraíba and Rio Grande do Norte are the largest producers in the country. So, to develop this work, the research was organized in three steps: Step I – Analysis of theoretical and documental contend related to study theme, and systematization and analysis of collected material; Step II – Experimental procedure: composite modelling and essay; Step III – Use viability analysis of composites to architectonical components manufacture. To produce these composites was tested four fiber concentrations variations, 0%, 15%, 30% and 40%. After modelling process, that was done by compression at room temperature, the physical essays was accomplished – humidity content, water absorption, and thickness grow; mechanical essays – flexion, tension, and impact – and thermal analysis – TGA/DTA. As results, must be said that the values increases when considered the PALF concentrations in composites, so, composites with bigger quantity of fibers shows better mechanical resistance, however, higher humidity content, water absorption and thickness grow. The results of mechanical essays are above of the minimal standards defined by technical specifications used, and very similar of the correlates researches; the physical essays comply with these standards mentioned. The composites varies from 610 kg/m3 to 800 kg/m3, showing to be possible to classify as composites panels, as standard ANSI A208.1/2006. The panels made with concentrations of 30% and 40% of PALF was the most appropriate for use in architecture. The parametrical modelling shows itself important to emphasize the possibility of the use of composite panels from PALF and Castor Oil to manufacture architectonical components and furniture, confirming the coherence of the comparative analysis between physical and mechanical results, the actual standards in national and international scenery for composites panels. Must be highlighted the extend of related researches with the develop of new technologies and alternative materials, aiming architectural and engineering applications.
MEMBROS DA BANCA:
Presidente - 1694892 - EDNA MOURA PINTO
Externo à Instituição - EDVALDO AMARO SANTOS CORREIA - IFPB
Externo à Instituição - LUCINEIDE BALBINO DA SILVA - UFPB
Interno - 1298938 - MAISA FERNANDES DUTRA VELOSO
Externo ao Programa - 3217842 - MARCOS SILVA DE AQUINO
Interno - 347627 - VIRGINIA MARIA DANTAS DE ARAUJO