Properties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer

This paper presents the results of laboratory investigations of bonding high moisture content (15 %) birch veneers (Betula pubescens Ehrh.) with the use of modifi ed phenol-formaldehyde (PF) resin. Wheat starch, rye flour, resorcinol and phenol-resorcinol-formaldehyde resin were chosen as modifying...

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Autores principales:	Pavlo Bekhta, Galyna Ortynska, Jan Sedliacik
Formato:	article
Lenguaje:	EN
Publicado:	University of Zagreb, Faculty of Forestry and Wood Technology 2015
Materias:	gluing veneer high moisture content plywood phenol-formaldehyde resin modifying agents Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/9ebc88dd6cfd4cdbb86f61923b10b9bf
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spelling	oai:doaj.org-article:9ebc88dd6cfd4cdbb86f61923b10b9bf2021-12-02T11:14:07ZProperties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer10.5552/drind.2014.13500012-67721847-1153https://doaj.org/article/9ebc88dd6cfd4cdbb86f61923b10b9bf2015-01-01T00:00:00Zhttp://hrcak.srce.hr/file/195184https://doaj.org/toc/0012-6772https://doaj.org/toc/1847-1153This paper presents the results of laboratory investigations of bonding high moisture content (15 %) birch veneers (Betula pubescens Ehrh.) with the use of modifi ed phenol-formaldehyde (PF) resin. Wheat starch, rye flour, resorcinol and phenol-resorcinol-formaldehyde resin were chosen as modifying agents. Dynamic viscosity, hydrogen ions concentration, solid content, curing time, pot life of developed adhesive compositions and shear strength of plywood samples were evaluated. ANOVA analysis has shown that type, mixture and content of modifying agents affect significantly the mechanical performance of plywood panels. The obtained results of shear strength values were above the standard requirements (1 N/mm2), and the properties of samples met the European standard EN 314-2 for gluing quality of class 3 and such plywood panels can be used in exterior conditions.Pavlo BekhtaGalyna OrtynskaJan SedliacikUniversity of Zagreb, Faculty of Forestry and Wood Technologyarticlegluingveneerhigh moisture contentplywoodphenol-formaldehyde resinmodifying agentsForestrySD1-669.5ENDrvna Industrija, Vol 65, Iss 4, Pp 293-301 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	gluing veneer high moisture content plywood phenol-formaldehyde resin modifying agents Forestry SD1-669.5
spellingShingle	gluing veneer high moisture content plywood phenol-formaldehyde resin modifying agents Forestry SD1-669.5 Pavlo Bekhta Galyna Ortynska Jan Sedliacik Properties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer
description	This paper presents the results of laboratory investigations of bonding high moisture content (15 %) birch veneers (Betula pubescens Ehrh.) with the use of modifi ed phenol-formaldehyde (PF) resin. Wheat starch, rye flour, resorcinol and phenol-resorcinol-formaldehyde resin were chosen as modifying agents. Dynamic viscosity, hydrogen ions concentration, solid content, curing time, pot life of developed adhesive compositions and shear strength of plywood samples were evaluated. ANOVA analysis has shown that type, mixture and content of modifying agents affect significantly the mechanical performance of plywood panels. The obtained results of shear strength values were above the standard requirements (1 N/mm2), and the properties of samples met the European standard EN 314-2 for gluing quality of class 3 and such plywood panels can be used in exterior conditions.
format	article
author	Pavlo Bekhta Galyna Ortynska Jan Sedliacik
author_facet	Pavlo Bekhta Galyna Ortynska Jan Sedliacik
author_sort	Pavlo Bekhta
title	Properties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer
title_short	Properties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer
title_full	Properties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer
title_fullStr	Properties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer
title_full_unstemmed	Properties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer
title_sort	properties of modified phenol-formaldehyde adhesive for plywood panels manufactured from high moisture content veneer
publisher	University of Zagreb, Faculty of Forestry and Wood Technology
publishDate	2015
url	https://doaj.org/article/9ebc88dd6cfd4cdbb86f61923b10b9bf
work_keys_str_mv	AT pavlobekhta propertiesofmodifiedphenolformaldehydeadhesiveforplywoodpanelsmanufacturedfromhighmoisturecontentveneer AT galynaortynska propertiesofmodifiedphenolformaldehydeadhesiveforplywoodpanelsmanufacturedfromhighmoisturecontentveneer AT jansedliacik propertiesofmodifiedphenolformaldehydeadhesiveforplywoodpanelsmanufacturedfromhighmoisturecontentveneer
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Properties of Modified Phenol-Formaldehyde Adhesive for Plywood Panels Manufactured from High Moisture Content Veneer

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