Avaliação dos efeitos do adesivo, gramatura e pressão na qualidade de painéis EGP de Eucalyptus badjensis

Iwakiri, Setsuo; Trianoski, Rosilani; Zunta, Renan Raia; Pereira, Giuliano Ferreira; Rosa, Thiago Souza da

doi:10.18671/scifor.v49n129.20

Cited by 2 publications

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“…Iwakiri et al (2021), studying E. badjensis , found mean values of 48.89, 41.31 and 11.44 MPa in static bending after the dry state, high temperature and triple cycle. For tensile, the authors obtained values of 26.78, 24.85 and 19.88 MPa, respectively.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the potential use of Amazonian palm species for the production of edge-glued panels

Braga

Iwakiri

Trianoski

et al. 2022

International Wood Products Journal

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The potential of Attalea maripa and Attalea speciosa was evaluated for the production of edgeglued panels. The chemical and physical properties and the quality of the bonding of the species and mixed treatment between them, under different conditions, were evaluated. The length bonding was performed with polyvinyl acetate (PVA) adhesive and the side with PVA and emulsion polymer isocyanate (EPI) in two spreading rates. The species A. maripa has a lower content of extractives in cold and hot water, total extractives, ash and pH, and higher density compared to A. speciosa. The tangential, radial and volumetric shrinkage and shrinkage anisotropy of the species were statistically equal. On the length bonding, only in the tensile test after drying pre-treatment were the requirements of the technical standards not met. As regards side bonding, the treatments of A. maripa and mixed joints with EPI reached the standard for the pre-treatment in cold water.

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Section: Discussionmentioning

confidence: 99%

Evaluation of the potential use of Amazonian palm species for the production of edge-glued panels

Braga

Iwakiri

Trianoski

et al. 2022

International Wood Products Journal

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“…For E. badjensis, Iwakiri et al (2021) found average tensile values of 26.78; 24.85 and 19.88 MPa in the dry, high temperature and triple cycle pre-treatments, respectively, and an average wood failure of 25 to 97%. While for P. taeda, Lau (2017) found 20.79, 9.71 and 12.02 MPa in the dry, high temperature and triple cycle pre-treatments, respectively, and average wood failure of 13 and 58%.…”

Section: Finger Joints Resistancementioning

confidence: 92%

“…Even though the vast majority of gluing operations are considered unique, due to the different variables involved in the process, such as species, wood properties, adhesives, gluing parameters, among others (Hunt et al, 2019), the results obtained in this research were satisfactory and compatible with those observed for the most industrially used woods in the production of EGP panels pine and eucalyptus. Iwakiri et al (2021) also using PVA D3 adhesive in a spreading rate of 180 g.m -2 , found resistances to static bending of the butt seams for Eucalyptus badjensis of 48.89, 41.31 and 11.44 MPa in the dry, high temperature and triple cycle pre-treatments, respectively. For P. taeda, Lau (2017) using the same gluing parameters found average values of static bending resistance of 28.53, 14.05 and 7.39 MPa in the dry, hightemperature, and triple cycle pre-treatments, respectively.…”

Section: Finger Joints Resistancementioning

confidence: 99%

“…using EPI adhesive at a spreading rate of 180 g.m -2 ,França et al (2020) found a shear resistance of 12.77 MPa in the dry condition and 8.84 MPa in the wet condition. WhileIwakiri et al (2021) using the same adhesive and spreading rates for E. Cariniana domestica, 5.23 MPa for Copaifera paupera, and 4.31 MPa for Cedrelinga cateniformis in wet pre-treatment, using the same adhesive and spreading rates as in the present study. These authors also evaluated the quality of bonding of joints with mixtures of species, obtaining approval according to the requirements of EN 13353(EN, 2008) standard, only for the combinations of C. domestica x C. cateniformis (5.62 MPa) and C.…”

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Potential for using tropical solid wood waste from the Amazon for the production of edge glued panels

Keffer,

Trianoski,

Santos

et al. 2023

Sci. Electronic Arch

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The objective of this study was to evaluate the potential use of solid wood waste of the following species Cedrela odorata, Enterolobium schomburgkii, Erisma uncinatum, and Qualea paraensis for the manufacture of edge glued panels. The quality of the finger joint and edge bonding with PVA and EPI adhesives, respectively, with spreading rates of 180 g.m-2, was evaluated through static bending, parallel tensile, and shear tests, using ASTM D 5572, EN 13353, and EN 13354 standards. A total of 1,460 test specimens exposed to dry, high temperature, triple cycle, and wet pre-treatments were tested for glue line resistance. The results of all tests for all pre-treatments of finger joints and edge bonding demonstrated the potential of wood waste for the manufacture of edge glued panels for interior use in dry environments. There was a tendency for resistance values to be balanced in splices and joints combined with mixtures of species, possibly due to the densities of the wood pieces. Wet pre-treatment delivered excellent lower 5th percentile results, highlighting the potential of Amazonian tropical solid wood waste for the production of edge glued panels.

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Avaliação dos efeitos do adesivo, gramatura e pressão na qualidade de painéis EGP de Eucalyptus badjensis

Cited by 2 publications

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Evaluation of the potential use of Amazonian palm species for the production of edge-glued panels

Evaluation of the potential use of Amazonian palm species for the production of edge-glued panels

Potential for using tropical solid wood waste from the Amazon for the production of edge glued panels

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