Open AccessResistência de linhas de cola para madeiras de reflorestamento
Author(s) -
Pedro Gutemberg de Alcântara Segundinho,
Carlito Calil Neto,
Fabrício Gomes Gonçalves,
Adair José Regazzi,
Carlito Calil
Publication year - 2015
Publication title -
semina. ciências exatas e tecnológicas
Language(s) - English
Resource type - Journals
eISSN - 1679-0375
pISSN - 1676-5451
DOI - 10.5433/1679-0375.2015v36n1p117
Subject(s) - glue , adhesive , urea formaldehyde , composite material , delamination (geology) , shear strength (soil) , materials science , environmental science , layer (electronics) , geology , paleontology , soil water , soil science , subduction , tectonics
This paper aims to evaluate the shear strength of glued laminated timber (glulam) made of three wood species: Tectona grandis, Pinus oocarpa and Eucalyptus sp.. The bonds were made with lamellae with no chemical treatment, using two-component adhesive based on melamine-urea-formaldehyde (MUF). Glue line shear tests were made for wood in local moisture content and high humidity, as well as delamination tests. The results presented in the glue line shear strength tests in dry condition and delamination for the three species indicate better performance of Pinus oocarpa. It was concluded that this species there is potential to produce MLC utilizing the MUF adhesive.