Composite particles with low density peanut shell, coconut fiber and castor oil polyurethane resin for application as castor lining of poultry houses

Author(s)

Julio Cesar Machado Cravo

• Document type: Master's Dissertation
• Press: Pirassununga.
• Institution: Universidade de São Paulo (USP). Faculdade de Zootecnica e Engenharia de Alimentos (FZE/BT)
• Defense date: 2013-02-15

Examining board members

Juliano Fiorelli; Júlio César de Carvalho Balieiro; Francisco Antonio Rocco Lahr

• Advisor: Juliano Fiorelli

Abstract

This study considered the potential use of agro waste like peanut hulls and coconut fiber in order to add value to this material through the manufacturing of composite particles of low-density liner for use as poultry houses. To make the composite was used for peanut shell, coconut fiber and bi-component polyurethane resin-based castor oil. The material was evaluated by physical-mechanical tests: a) density, b) swelling, c) absorbing, d) modulus of rupture, e) elastic modulus and f) internal adhesion, durability: a) natural aging b) Accelerated aging ; thermal: a) thermal conductivity b) factor of solar heat gain. Considering the results obtained in this study, it is concluded that the composite possess physical and mechanical properties compatible with the needs of use of the material. Durability testing showed that the mechanical properties of the composite are reduced after application of cycles of humidity and temperature, however, the evaluation was rigorous and does not represent the actual conditions of exposure of the composite in lining use as poultry houses. Prolonged contact with sources of moisture caused fungal growth in the material, indicating the need for application of sealer to the surface of the material, to reduce water absorption. For the thermal conductivity test was possible to determine the factor of solar heat gain which demonstrated that when the composite is applied as a lining, there is a significant reduction in the transfer of solar radiation into the poultry, demonstrating the potential of this material for use. (AU)

• FAPESP's process: 11/03707-2 - Low-density particulate composite based on peanut hulls and castor oil polyurethane resin for use as lining of broiler
• Grantee: Julio Cesar Machado Cravo
• Support Opportunities: Scholarships in Brazil - Master