Nanocellulose-reinforced phenol-formaldehyde resin for plywood panel production
Abstract: The search for new technologies to improve adhesives and the properties of reconstituted wood panels is constant, and nanotechnology is a tool for this purpose. The aim of this study is investigating the effect of adding nanocellulose in the formulation of the adhesive phenol-formaldehyde on the physico-mechanical properties of Pinus taeda plywood panels. Three ratios of nanofibrillated cellulose (NFC) were added to the adhesive formulation used to produce plywood panels: 0,026 %; 0,038 % or 0,064 %. The panels were tested according to the European standards; apparent density, resistance to parallel and perpendicular flexure and glue line shear strength were determined after 6 hours of boiling and after the boiling cycle for the 1st glue line (face) and 2nd glue line (core). The use of NFC in the adhesive caused an increase of viscosity and reduction of the gel time of the adhesive. The apparent density of the panels was not influenced by the addition of NFC, but the properties of parallel bending, perpendicular flexing and glue line shear were sensitive to the addition of NFC. The NR2 treatment (0,038 % NFC) presented the best results in the mechanical tests.
Main Authors: | Lengowski,Elaine Cristina, Bonfatti Júnior,Eraldo Antonio, Dallo,Rafael, Nisgoski,Silvana, Mattos,Jorge Luís Monteiro de, Prata,José Guilherme |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Universidad del Bío-Bío
2021
|
Online Access: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100405 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Evaluation of chestnut shell and coffee waste with phenol-formaldehyde resin for plywood filler
by: Oh,Yong-Sung
Published: (2021) -
TECHNOLOGICAL PROPERTIES OF PLYWOOD BONDED WITH PHENOL-FORMALDEHYDE RESOL RESIN SYNTHESIZED WITH BIO-OIL
by: Ayrilmis,Nadir, et al.
Published: (2017) -
Production of plywood panels from Pinus taeda using veneers of differing densities and phenol-formaldehyde resin with high and low molecular weights
by: Muniz,Graciela Ines Bolzon de, et al.
Published: (2013) -
Performance characterization of plywood panels bonded with melamine-urea-formaldehyde resin and cellulose nanofibril/borax as an additive
by: Yildirim,Mert, et al.
Published: (2024) -
Graphitization of Lignin-Phenol-Formaldehyde Resins
by: Talabi,Segun Isaac, et al.
Published: (2020)