Abstract
ABSTRACT This research aims to evaluate the quality of particleboard produced with particles generated from discarded furniture, both in its pure form or mixed with industrial particles of Pinus. The material was collected in the region of Curitiba City (Paraná) in the form of chips processed in an industrial chipper of a company specialized in waste wood recycling. The experimental plan consisted in producing panels with 10%, 25%, 50% and 75% of particles obtained from discarded furniture mixed with particles of Pinus, and panels with 100% of such materials. Panels were produced with nominal density of 0,70 g/cm3, using the urea-formaldehyde resin in a proportion of 10% solids - dry basis weight of the particles and 1% paraffin emulsion. The panels were pressed with a specific pressure of 4,0 MPa, temperature of 140ºC and pressing time of 10 minutes. The results of internal bond met the requirements of the standard EN 312, which indicates that there was an adequate bonding of these particles obtained from discarded furniture. The results of physical and mechanical properties of the panels demonstrated the feasibility of using particles from discarded furniture when producing particleboard, with the possibility of full use of these particles from waste without mixing it with industrial particles of Pinus free from contamination.
Highlights
The main source of wood used on the production of particleboards in Brazil comes from planted forests, with Pinus and Eucalyptus being the most used species (Iwakiri et al, 2002)
The particles obtained from furniture discards presented a mean value of density bulk of 0,178 g/ cm3, lower than the average value of 0,200 g/cm3 obtained on the industrial Pinus particles (Table 2)
Regarding the chemical analyzes of the materials, the average pH value obtained for the furniture discards was 5,30 and 5,14 for the industrial particles of Pinus
Summary
The main source of wood used on the production of particleboards in Brazil comes from planted forests, with Pinus and Eucalyptus being the most used species (Iwakiri et al, 2002). Particleboards industries use wood in the form of thin logs from slabs, or chips generated from the reprocessing of sawmills and rolling mills. The use of residues of wood products at the end of their life cycle is not yet performed in Brazil for the manufacture of particleboards, it is one of the main sources of raw materials in developed countries. In recent years, studies on the potential use of various types of wood residues and wood products on the production of particleboards have been objects of some researchers in Brazil. The researchers found satisfactory results for the use of these residues in the production of particleboards, indicating it is possible to incorporate them into the raw material matrix for these industries
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
