The effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)

This objective of this investigation was to modify and improve the water resistance of urea formaldehyde (UF) bonded particleboard adding Boric acid to the resin. Four levels (1, 2, 3 and 4) of boric acid based on the dry weight of the bonder were added to the UF resin. Then these mixtures were use...

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Autores principales:	Mostafa Poozesh, Hamid Reza Mansouri, babak Nosrati, Alireza Samzadeh
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2016
Materias:	UREA FORMALDEHYDE Boric acid water absorption Thickness swelling Internal bonding Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/cb0c6185c31042f78c03f611b2758c26
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spelling	oai:doaj.org-article:cb0c6185c31042f78c03f611b2758c262021-12-02T02:36:29ZThe effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)1735-09132383-112X10.22092/ijwpr.2015.102672https://doaj.org/article/cb0c6185c31042f78c03f611b2758c262016-03-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_102672_b252aa25a6530a718d8be6e90b4c4b5c.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XThis objective of this investigation was to modify and improve the water resistance of urea formaldehyde (UF) bonded particleboard adding Boric acid to the resin. Four levels (1, 2, 3 and 4) of boric acid based on the dry weight of the bonder were added to the UF resin. Then these mixtures were used to produce particleboard. Physical and mechanical properties were examined according to the ASTM, D1013-04. The results showed that the using of this additive increased the water absorption and thickness swelling resistance after 2 and 24 hours immersion in water. Also using this additive increased the internal bonding of the boards after 24 hours after immersion in water, compared to the control sample but in the case of dry samples, the internal bonding decreased compared to the control sample. However it was not lower than standard value. As the Boric acid levels increased to 2 percent, bending strength of the samples was increased compare to the control sample and after this level it was decreased. Also with increasing the levels to 4 percent, modulus of elasticity of boards were increased compare to the control sampleMostafa PoozeshHamid Reza Mansouribabak NosratiAlireza SamzadehRegional Information Center for Science and Technology (RICeST)articleUREA FORMALDEHYDEBoric acidwater absorptionThickness swellingInternal bondingForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 31, Iss 1, Pp 40-47 (2016)
institution	DOAJ
collection	DOAJ
language	FA
topic	UREA FORMALDEHYDE Boric acid water absorption Thickness swelling Internal bonding Forestry SD1-669.5
spellingShingle	UREA FORMALDEHYDE Boric acid water absorption Thickness swelling Internal bonding Forestry SD1-669.5 Mostafa Poozesh Hamid Reza Mansouri babak Nosrati Alireza Samzadeh The effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)
description	This objective of this investigation was to modify and improve the water resistance of urea formaldehyde (UF) bonded particleboard adding Boric acid to the resin. Four levels (1, 2, 3 and 4) of boric acid based on the dry weight of the bonder were added to the UF resin. Then these mixtures were used to produce particleboard. Physical and mechanical properties were examined according to the ASTM, D1013-04. The results showed that the using of this additive increased the water absorption and thickness swelling resistance after 2 and 24 hours immersion in water. Also using this additive increased the internal bonding of the boards after 24 hours after immersion in water, compared to the control sample but in the case of dry samples, the internal bonding decreased compared to the control sample. However it was not lower than standard value. As the Boric acid levels increased to 2 percent, bending strength of the samples was increased compare to the control sample and after this level it was decreased. Also with increasing the levels to 4 percent, modulus of elasticity of boards were increased compare to the control sample
format	article
author	Mostafa Poozesh Hamid Reza Mansouri babak Nosrati Alireza Samzadeh
author_facet	Mostafa Poozesh Hamid Reza Mansouri babak Nosrati Alireza Samzadeh
author_sort	Mostafa Poozesh
title	The effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)
title_short	The effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)
title_full	The effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)
title_fullStr	The effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)
title_full_unstemmed	The effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)
title_sort	effect of boric acid on the physical and mechanical properties of particleboard made to urea-formaldehyde resin (uf)
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2016
url	https://doaj.org/article/cb0c6185c31042f78c03f611b2758c26
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The effect of boric acid on the physical and mechanical properties of particleboard made to Urea-formaldehyde resin (UF)

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