Bagasse cellulose and sugarcane straw: chemical modification and application as reinforcement in polypropylene compounds

• Grant number: 02/12834-9
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2003
• End date: September 30, 2005
• Field of knowledge: Engineering - Chemical Engineering - Chemical Technology
• Principal Investigator: Adilson Roberto Gonçalves
• Grantee: Adilson Roberto Gonçalves
• Host Institution: Faculdade de Engenharia Química de Lorena (FAENQUIL). Secretaria de Desenvolvimento Econômico (São Paulo - Estado). Lorena , SP, Brazil

Abstract

In this project composites will be obtained using as reinforcement bagasse cellulose and sugarcane straw chemically modified by benzylation and benzolation. The composites will be prepared in a forcefed degassing mono-thread extruder with variable compositions of reinforcement (10-50 per cent), injected directly into molds with specific dimensions for mechanical trials of traction, flexion and shearing. The composites will be characterized by MEV, polarized light optic microscopy, TGA, DSC and TMA. Preliminary tests were undertaken to obtain composites in mono-thread extruder and “Dryser” mixer using bagasse cellulose as reinforcement for polypropylene and the composite obtained was more homogeneous and displayed greater values of resistance to traction and flexion than that obtained in the extruder. However, mixing in the “Dryser” causes breakage in the length of the fibers, making it necessary to study the fiber/matrix mixture. Optimization of the use of the extruder is essential to obtain homogeneous composites which preserve the integrity of the fibers. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MULINARI, D. R.; VOORWALD, H. J. C.; CIOFFI, M. O. H.; LIMA, C. A. A.; BAPTISTA, C. A. P. R.; ROCHA, G. J. M.. Composite materials obtained from textile fiber residue. JOURNAL OF COMPOSITE MATERIALS, v. 45, n. 5, p. 543-547, MAR 2011. (02/12834-9, 06/02121-6)