Hybrid chipboard panels based on sugarcane bagasse, urea formaldehyde and melamine formaldehyde resin

Abstract

The expansion of Brazilian agricultural production was very important in the last decade. A number of waste residues were produced showing an enormous potential for industrial crops and products. Sugarcane bagasse is the most important one and it has been investigated for chipboard panel's preparation. In this sense, this work aims to develop, characterize and compare chipboard panels made with sugarcane bagasse with urea formaldehyde (UF) and melamine formaldehyde (MF) resins. Panels were obtained with a mixture of sugarcane bagasse and particles, like pine or eucalyptus, with and without paraffin in the formulation. Nine different types of panels have been made, all with 9% in resin mix, under a pressing cycle of 4.0 MPa cm 2 , and temperature of 160 • C. Under physical tests, the panels complied with the American Standard CS 236-66 for trading chipboards of medium density and, in most cases the results obtained were lower than the ones raised in the literature. Under mechanical tests, that same standard was not complied with and, in most cases the results were close to or higher than those obtained in the literature.

Effect of Post-production Heat Treatment on Particleboard from Sugarcane Bagasse

“…With regard to the IB property, only the control treatment met the requirements of the standard. These low IB values, regardless of the heat treatment, have also been observed in several studies on bagasse panels 3,9,10 , which is basically owing to the low density of the bagasse material and the consequent need to increase the number of particles to form a panel of predetermined density. This causes an increase in the surface area for the same amount of adhesive, thus more markedly promoting the decrease in the IB property.…”

“…Some studies on the use of bagasse for the production of particleboard have revealed its significant potential 2,4,7,8,9,10 . However, because of its low density, a large amount of bagasse particles is required to form the panel, causing an increase in the compressive stress at pressing time and a greater number of hygroscopic sites, thus making the panel more susceptible to water absorption and dimensional change.…”

<b>Analysis of physical, chemical e mechanical properties of wood-particle boards containing biaxially oriented polypropylene

“…The demand for environmentally friendly materials for construction and architectural manufacturing has led to the development of compounds using natural fibers, especially lignocellulosic materials such as wood, which has been used as a reinforcing agent in polymer matrices for the production of particle boards and composites since the production of synthetic fibers shows a high environmental cost (Barros Filho, Mendes, Novack, Aprelini, & Botaro, 2011).…”

Effect of the Particle Geometry and Adhesive Mass Percentage on the Physical and Mechanical Properties of Particleboard made from Peanut Hull

“…In general, the raw materials used to fabricate particleboard must have a chemical composition similar to that of wood, which usually contains cellulose, hemicellulose, and lignin (Copur et al 2007;Barros Filho 2011;Fiorelli et al 2012;Dias et al 2016). Peanut hull consists of 68.8% holocellulose, which includes 42.5% α-cellulose and 28% lignin (Guler et al 2008).…”