Particleboard Production With Residues From Mechanical Processing of Amazonian Woods

Abstract

The lack of use of the residues generated by the mechanical processing of wood and their inadequate disposal are challenges for the timber industry. They have potential for products with higher value. The purpose of this research was to evaluate the use of residues generated by the mechanical processing of Amazonian woods Caryocar villosum, Hymenolobium excelsum, Mezilaurus lindaviana, Erisma uncinatum, Tachigali myrmecophyla and Qualea paraensis in the high-density particleboard production. The panels produced had nominal density of 850 kg.m-3, nominal thickness of 15.7 mm and 8% of phenol formaldehyde adhesive. The physical-mechanical properties of the panels produced from each species and with a mixture of all of them in equal parts were evaluated. The specimens from the panels were prepared for physical tests (apparent density, moisture content, water absorption and thickness swelling) and mechanical tests (static bending - modulus of elasticity and modulus of rupture, and internal bond) according to the standard ABNT NBR 14810-3. The mechanical properties of the particleboards manufactured with the C. villosum, H. excelsum and T. myrmecophyla residues were generally superior than those of the other species and met one or more of the minimum requirements indicated by the ANSI A208.1 standard for (H-1 classification) and for floors production (PBU classification).

Properties of particleboards made from sugarcane bagasse particles

“…In 2018, Brazil produced 8.2 million m³ of reconstituted panels (Ibá, 2019). The panel quality depends on wood factors, such as species, extractives and basic density, besides those related to processing (Surdi et al, 2019).…”

Effects of Chip Type on the Properties of Chip–Sawdust Boards Glued with Polymeric Diphenyl Methane Diisocyanate

“…Currently, the minimum requirements for particleboards containing fine chips in this respect are set in Europe by the EN 312 standard [7]. Boards of this type can be successfully produced from various types of biomass, e.g., fragmented primary (forest) wood [8,9], secondary wood [10], or crop straw [11][12][13]; all types of resins, pure, modified, or hybrids, may be used to bond them [14][15][16][17][18][19]. Irrespective of the wood's origin, it is first fragmented into larger pieces, 30 to 60 mm in size and 3 to 9 mm in thickness (chips), and then into proper strands, 10 to 20 mm long, 3 to 10 mm wide, and 0.4 to 0.7 mm thick.…”