PRODUCTION OF PARTICLEBOARD FROM DISCARDED FURNITURE1

• Published in: Revista árvore 2018-04, Vol.41 (4)
• Main Authors: Zamarian, Esoline Helena Cavalli, Iwakiri, Setsuo, Trianoski, Rosilani, Albuquerque, Carlos Eduardo Camargo de
• Format: Article
• Language: English
• Subjects: FORESTRY; Furniture waste; Recycling of materials; Wood particles
• ISSN: 0100-6762; 1806-9088; 1806-9088
• DOI: 10.1590/1806-90882017000400007

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. RESUMO O objetivo deste trabalho foi avaliar a qualidade de painéis aglomerados produzidos com partículas geradas a partir de móveis descartados, na forma pura e em mistura com partículas industriais de Pinus. O material foi coletado na região de Curitiba-PR na forma de cavacos processados num triturador industrial de uma empresa especializada em reciclagem de resíduos de madeira. O plano experimental consistiu na produção de painéis com 10%, 25%, 50% e 75% de partículas de descartes de móveis com partículas de Pinus, além de painéis com 100% destes materiais. Foram produzidos painéis com densidade nominal de 0,70 g/cm3, utilizando a resina ureia-formaldeído na proporção de 10% de sólidos - base peso seco das partículas, e, 1% de emulsão parafínica. Os painéis foram prensados com pressão específica de 4,0 MPa, temperatura de 140ºC e tempo de prensagem de 10 minutos. Os resultados de ligação interna atenderam aos requisitos da norma EN 312, sendo indicativo de que houve uma colagem adequada destas partículas provenientes de descartes de móveis. Os resultados das propriedades físicas e mecânicas dos painéis demonstraram a viabilidade