The Effect of Cellulose Nanocrystals in Sugarcane Bagasse Particleboards of Pith and Fibers

Abstract

The separation of pith and fiber did not affect the final properties of particleboards. The NNCs inclusion did not affect the most properties.

Properties of particleboards made from sugarcane bagasse particles

“…The WA2h value of the panels produced with hot water treated particles was significantly higher than those panels produced with untreated particles. The water can cause swelling, inducing a movement of the structural components of the panel, breaking the bonding among adhesive and wood surface sites due to mechanical forces and stresses (Liu et al, 2008), creating more porosity for water entrance (Mesquita et al, 2019). The panels produced with hot water treated particles and immersed for 24 hours were statistically equivalent in all treatments.…”

“…An interesting alternative would be sugarcane bagasse that is a residue of lignocellulosic fiber derived from sugarcane processing and juice extraction. It is used in the sugar and ethanol industry to generate heat, steam and energy (Mesquita et al, 2019).…”

“…Some studies carried out by Mendes et al (2014), Fiorelli et al (2016), Soares et al (2017), Silva et al (2018, Buzo et al (2019) and Nakanishi et al (2019) have demonstrated that this waste has the potential to produce panels, associated or not, with other lignocellulosic materials. In a study conducted with sugarcane bagasse Soares et al (2017) observed that this material contains high amounts of extracts, substances that can affect the curing of the resin and the adhesion between particles, in addition to cells with less stiffness and more damaged because of the sugarcane milling process (Mesquita et al, 2017(Mesquita et al, , 2019.…”

Evaluation of Functional Features of Lignocellulosic Particle Composites Containing Biopolymer Binders

“…Due to the depletion of wood resources for the production of wood-based panels, the use of lignocellulosic agricultural byproducts as a replacement, apart from attempts to use recycled wood-based materials [2], has become a promising alternative [3]. The most common byproduct, which is also rich in lignin and cellulose, are lignocellulosic particles from agricultural residues such as sugar cane bagasse [4], oil palm trunk [5], sugar beet pulp [6], tomato stalks [7], rice husk [8], corn stalk [9], maize cobs [10], coconut husk [11], kenaf stem [12], and waste biomass produced after orchard pruning [13]. In the production of commercial wood-based materials (particleboard, medium-density fiberboard, plywood or oriented strand board), synthetic adhesives such as urea-formaldehyde (UF), melamine-urea-formaldehyde (MUF), and phenol-formaldehyde (PF) are usually used due to their low production cost while maintaining excellent adhesive properties, excellent stability and fast curing [14].…”