Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/49267
Título: Variação das propriedades tecnológicas de painéis MDF em uma linha de produção industrial no Brasil
Título(s) alternativo(s): Variation of technological properties of MDF panels in an industrial production line in Brazil
Variación de las propiedadestecnológicas de los paneles de MDF en una línea de producción industrial en Brasil
Palavras-chave: Painel de fibras de média densidade
Painéis comerciais
Propriedades físico-mecânicas
Envelhecimento artificial
Medium density fiberboard
Commercial panels
Physical-mechanical properties
Artificial aging
Tableros de fibra de densidad media
Paneles comerciales
Propiedades físico-mecánicas
Envejecimiento artificial
Data do documento: 6-Set-2021
Editor: Universidade Federal de Itajubá (UNIFEI), Campus Itabira
Citação: ARAUJO, E. da S. et al. Variação das propriedades tecnológicas de painéis MDF em uma linha de produção industrial no Brasil. Research, Society and Development, [S.l.], v. 10, n. 11, p. 1-10, 2021. DOI: 10.33448/rsd-v10i11.19951.
Resumo: In the present study the technological properties of medium density fibreboard (MDF) were characterised, at different production times in a Brazilian industrial line, with the aim of assessing the technological variability of the boards and their quality in relation to the commercial technical standard. MDF panels made with fibers from Eucalyptus spp. (70%), Schizolobium parahyba (20%) and sawmill waste wood (10%), bonded with urea-formaldehyde resin were collected at two-hour intervals from one of the company's production shifts. Physical properties (moisture, bulk density, surface absorption, water absorption, thickness swelling and thickness non-return rate) and mechanical strength (static bending, janka hardness, perpendicular traction and screw pull-out) were determined. The panels from the beginning and end of the shift were submitted to the accelerated ageing cycle, and then evaluated for density, tensile and static bending. Of the total properties assessed in the MDF panels, a percentage of 55% showed no variations between the production times, and conformed to the values of the standard. Only the properties of swelling in thickness (IE 24h) and traction in 80% of the times, did not meet the values stipulated by ABNT NBR 15316-1, ranging from 11.2 to 15.6% and 0.42 to 0.62 N/mm², respectively, between the beginning and end of the shift. Accelerated ageing caused a significant decrease in the quality of the sheets. The MDF panels studied present good technological performance for use in dry environments, and their technological variation was due to the use of fibres from different woods in the production of the boards.
URI: http://repositorio.ufla.br/jspui/handle/1/49267
Aparece nas coleções:DEG - Artigos publicados em periódicos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
ARTIGO_Variação das propriedades tecnológicas de painéis MDF em uma linha de produção industrial no Brasil.pdf218,96 kBAdobe PDFVisualizar/Abrir


Este item está licenciada sob uma Licença Creative Commons Creative Commons