Bonding strength of some adhesives in wood materials impregnated with Imersol-Aqua

Örs, Yalçın; Atar, Musa; Keski̇n, Hakan

doi:10.1016/j.ijadhadh.2003.10.007

Cited by 38 publications

(20 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The highest shear strength was obtained in sanded specimens in which I‐A was applied with the short‐period dipping method and that were bonded with PU. The lowest shear strength was obtained in the sanded specimens in which I‐A was applied with the long‐period dipping method and that were bonded with S‐L 308 30…”

Section: Introductionmentioning

confidence: 99%

The shear strength of Calabrian pine (Pinus brutia Ten.) bonded with polyurethane and polyvinyl acetate adhesives

Burdurlu

Kiliç

Elibol

et al. 2006

J of Applied Polymer Sci

View full text Add to dashboard Cite

ABSTRACT:In this study, the change in shear strength on radial and tangential surfaces of Calabrian Pine (Pinus brutia Ten.) wood having different roughness values as the result of sawing with a circular ripsaw, planing and sanding, and bonded with polyurethane (PU) and polyvinyl acetate (PVAc) adhesives at the pressure levels of 3, 6, and 9 kgf/ cm 2 , was studied. Each of the 360 specimens prepared to determine the effect of the variables on bond performance were subjected to shear test in an universal test machine in accordance with the ASTM D 905-98 standards. The values obtained were analyzed statistically and the results were interpreted. The highest shear strength (11.83 N/mm 2 ) for plane of cut was obtained on the tangential surface after sanding and applying PVAc adhesive with a pressing pressure of 9 kgf/cm 2 . The lowest shear strength (6.01 N/mm 2 ) was obtained in the joinings made on the planed surfaces by using PU adhesive and a pressing pressure of 3 kgf/cm 2 .The highest shear strength (9.10 N/mm 2 ) on the radial surface was obtained after sanding and applying PVAc adhesive and pressing with a pressure of 6 kgf/cm 2 . The lowest shear strength (3.76 N/mm 2 ) was obtained in the specimens whose surfaces were sanded and glued with PU adhesive with a pressing pressure of 3 kgf/cm 2 . In general, in the radial surfaces, just like in the tangential surfaces, the specimens bonded with PVAc exhibited a higher shear strength compared with those glued with PU. According to these results, it is definitely necessary to sand the surfaces prior to the bonding process to have a higher shear strength. The bonding process should be made on the tangential surfaces with higher pressures. The PVAc adhesive should be preferred instead of the PU adhesive.

show abstract

Section: Introductionmentioning

confidence: 99%

The shear strength of Calabrian pine (Pinus brutia Ten.) bonded with polyurethane and polyvinyl acetate adhesives

Burdurlu

Kiliç

Elibol

et al. 2006

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Muchos factores pueden contribuir al desarrollo de una insuficiente resistencia en la línea de adhesivo. La presencia de preservantes y estabilizantes pueden interferir en la adhesión interfacial entre la madera y el adhesivo (Lee et al, 2006;Örs et al, 2004;Özçifçi, 2008). Se ha reportado que para lograr uniones estables con adhesivos del tipo PF en maderas tratadas con PEG fue necesario remover el PEG de las capas superficiales (Unger et al, 2001).…”

Section: Resultados Y Discusiónunclassified

“…Many factors may contribute to insufficient glue-line strength. The presence of preservatives and stabilizers can interfere with the interfacial adhesion between wood and adhesive (Lee et al, 2006;Örs et al, 2004;Özçifçi, 2008). It has been reported that to achieve stable bonds with PF-type adhesives in PEG-treated wood, it was necessary to remove the PEG from the surface layers (Unger et al, 2001).…”

Section: Resultados Y Discusiónmentioning

confidence: 99%

EVALUACIÓN DE TRES ADHESIVOS EN LA FABRICACIÓN DE TABLEROS ENLISTONADOS DE Aspidosperma quebracho blanco ESTABILIZADO CON POLIETILENGLICOL

Sanabria¹,

Cayre²,

Frank³

2011

rchscfa

View full text Add to dashboard Cite

RESUMENEn este trabajo se evaluó que tipo de adhesivo es factible de utilizar en la fabricación de tableros enlistonados de madera de Aspidosperma quebracho-blanco impregnada con polietilengliol (PEG). Se analizaron tres tipos de adhesivos: polivinil acetato (PVAc), urea-formaldehído (UF) y fenol-formaldehído (PF) para conformar los tableros. La calidad adhesiva se determinó mediante la resistencia de la línea de adhesivo en tableros fabricados con madera impregnada y sin impregnar. El uso de PEG como estabilizante de la madera de Aspidosperma quebracho-blanco no interfirió en el proceso de adhesión cuando se utilizaron adhesivos UF y PF. Con el adhesivo PVAc provocó una disminución (< 15 %) de la resistencia en la línea de adhesivo respecto de la madera sin impregnar. El adhesivo que mejor se comportó de acuerdo a la Norma Española UNE 56-777-92. Determinación de la resistencia en la línea de adhesivo, fue el UF. Los adhesivos PVAc y PF no lograron pasar las especificaciones mínimas de 10 N·mm -2 aún en los tableros fabricados con madera sin impregnar. ABSTRACTThis study analyzed what type of adhesive is most suitable for use in the manufacture of Aspidosperma quebracho-blanco wood blockboards impregnated with polyethylene glycol (PEG). Three types of adhesives that could potentially be used to form the boards were analyzed: polyvinyl acetate (PVAc), urea-formaldehyde (UF) and phenol-formaldehyde (PF). Bond quality was determined by the glue-line strength in boards made with impregnated and non-impregnated wood. The use of PEG as a stabilizer of Aspidosperma quebracho-blanco wood did not interfere in the adhesion process when UF and PF adhesives were tested. The PVAc adhesive decreased (<15%) the resistance of the glue line in comparison with the non-impregnated wood. The adhesive that performed the best according to the Spanish standard UNE 56-777-92, pertaining to the determination of glue-line strength, was the UF one. The PVAc and PF adhesives failed to reach the minimum specifications of 10 N·mm -2 even in those boards manufactured with non-impregnated wood.

show abstract

“…Retention was found more in long‐term dipping than in short‐term dipping method. It was reported that in impregnation of scotch pine and oriental beech with Imersol‐WR, retention was increased by the period of impregnation 15. Impregnation with long‐term dipping provides advantages for applications requiring high retention quantity.…”

Section: Discussionmentioning

confidence: 99%

Effects of impregnation with imersol‐AQUA on yellow color tone of some softwoods and varnishes

Atar

Keski̇n

Çolakoğlu

2006

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

This study has been performed for determining impacts of impregnation with Imersol-AQUA (I-AQUA) to yellow color tone of some softwoods and varnishes. For this purpose, samples of scotch pine (Pinus sylvestris L.), oriental spruce (Picea orientalis L.), and Uludag fir (Abies bornmlleriana L.) wood, prepared according to the ASTM D 358 standards, are impregnated with I-AQUA by short-term (S), medium-term (M), and long-term (L) immersion techniques in accordance with ASTM D 1413 and producer's definition. After impregnation, surfaces have been coated by synthetic (Sv), acrylic (Ac), water-based varnishes (Wb) and polyurethane (Pu) varnishes in accordance with ASTM D 3023 standards. According to ASTM D 2244 standards, yellow color tone value of specimens after varnishing process was determined. As a result, based on the wood material, varnish type, and impregnation period, yellow color tone was the highest in pine, medium-term dipping, and synthetic varnish and the lowest in fir, long-term dipping, and water-borne varnish. Considering the interaction of wood type, period of impregnation and type of varnish, yellow color tone was the highest in fir þ medium-term of dipping þ synthetic varnish and the lowest in spruce þ long-term of dipping þ water-borne varnish. So, impregnation process, impregnation period, and varnishes applied during tests showed increasing impact for yellow color tone value of wood materials.

show abstract

Bonding strength of some adhesives in wood materials impregnated with Imersol-Aqua

Cited by 38 publications

References 2 publications

The shear strength of Calabrian pine (Pinus brutia Ten.) bonded with polyurethane and polyvinyl acetate adhesives

The shear strength of Calabrian pine (Pinus brutia Ten.) bonded with polyurethane and polyvinyl acetate adhesives

EVALUACIÓN DE TRES ADHESIVOS EN LA FABRICACIÓN DE TABLEROS ENLISTONADOS DE Aspidosperma quebracho blanco ESTABILIZADO CON POLIETILENGLICOL

Effects of impregnation with imersol‐AQUA on yellow color tone of some softwoods and varnishes

Contact Info

Product

Resources

About