Effect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)

Wood-composites are susceptible to fire due to their nature. Some research projects were therefore carried out to investigate potentiality of bentonite nanoparticles in improving fire-retarding properties in medium-density fiberboards (MDF); the present complimentary study aimed at determining the e...

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Autores principales:	Ghonche Rassam, Hamid Reza Taghiyari, Bratali Keshtegar
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2014
Materias:	Medium-density fiberboard (MDF) Nano-Bentonite physical properties MECHANICAL PROPERTIES Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/c753a6a5f2d943ef8c124550bd76a217
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spelling	oai:doaj.org-article:c753a6a5f2d943ef8c124550bd76a2172021-12-02T02:27:45ZEffect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)1735-09132383-112X10.22092/ijwpr.2014.5689https://doaj.org/article/c753a6a5f2d943ef8c124550bd76a2172014-06-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_5689_da25ef70d9415a406284abb128e34cce.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XWood-composites are susceptible to fire due to their nature. Some research projects were therefore carried out to investigate potentiality of bentonite nanoparticles in improving fire-retarding properties in medium-density fiberboards (MDF); the present complimentary study aimed at determining the effects of nanobentonite on physical and mechanical properties of MDF. Ten percent of urea-formaldehyde resin was used as adhesive in the matrix. Nano bentonite was added at 5 levels (%0 ,% 5 ,% 10 , %15 and %20) g/kg based on the dry weight of fibers. Bentonite nanoparticles were sprayed on the fibers after being mixed with the resin solution. Mats were hot-pressed for 4, 5, and 6 minutes at temperature of 170°C. Density was kept constant (75 g.cm-3) for all treatment. Results revealed that nano Bentonite did not improve the physical properties of water absorption, thickness swelling and mechanical properties of internal bonding (IB), modulus of elasticity (MOE), modulus of rupture (MOR). As to the other treatments, nano Bentonite consumption level of % 5 showed the lowest negative effect on the physical properties (water absorption, thickness swelling ) and treatment of 5% and %10 also less negative effect on the Mechanical properties (Modulus of rupture, Internal Bonding ). Treatment 20% is not recommended because it weakens the properties; moreover, the surface of fiberboards is not suitable. It was concluded that due to the fire-retarding improving effects, %5 of nano Bentonite is recommended as the optimum level for the industry.Ghonche RassamHamid Reza TaghiyariBratali KeshtegarRegional Information Center for Science and Technology (RICeST)articleMedium-density fiberboard (MDF)Nano-Bentonitephysical propertiesMECHANICAL PROPERTIESForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 29, Iss 2, Pp 266-274 (2014)
institution	DOAJ
collection	DOAJ
language	FA
topic	Medium-density fiberboard (MDF) Nano-Bentonite physical properties MECHANICAL PROPERTIES Forestry SD1-669.5
spellingShingle	Medium-density fiberboard (MDF) Nano-Bentonite physical properties MECHANICAL PROPERTIES Forestry SD1-669.5 Ghonche Rassam Hamid Reza Taghiyari Bratali Keshtegar Effect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)
description	Wood-composites are susceptible to fire due to their nature. Some research projects were therefore carried out to investigate potentiality of bentonite nanoparticles in improving fire-retarding properties in medium-density fiberboards (MDF); the present complimentary study aimed at determining the effects of nanobentonite on physical and mechanical properties of MDF. Ten percent of urea-formaldehyde resin was used as adhesive in the matrix. Nano bentonite was added at 5 levels (%0 ,% 5 ,% 10 , %15 and %20) g/kg based on the dry weight of fibers. Bentonite nanoparticles were sprayed on the fibers after being mixed with the resin solution. Mats were hot-pressed for 4, 5, and 6 minutes at temperature of 170°C. Density was kept constant (75 g.cm-3) for all treatment. Results revealed that nano Bentonite did not improve the physical properties of water absorption, thickness swelling and mechanical properties of internal bonding (IB), modulus of elasticity (MOE), modulus of rupture (MOR). As to the other treatments, nano Bentonite consumption level of % 5 showed the lowest negative effect on the physical properties (water absorption, thickness swelling ) and treatment of 5% and %10 also less negative effect on the Mechanical properties (Modulus of rupture, Internal Bonding ). Treatment 20% is not recommended because it weakens the properties; moreover, the surface of fiberboards is not suitable. It was concluded that due to the fire-retarding improving effects, %5 of nano Bentonite is recommended as the optimum level for the industry.
format	article
author	Ghonche Rassam Hamid Reza Taghiyari Bratali Keshtegar
author_facet	Ghonche Rassam Hamid Reza Taghiyari Bratali Keshtegar
author_sort	Ghonche Rassam
title	Effect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)
title_short	Effect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)
title_full	Effect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)
title_fullStr	Effect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)
title_full_unstemmed	Effect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)
title_sort	effect of nano–bentonite on physical and mechanical properties medium density fiberboard (mdf)
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2014
url	https://doaj.org/article/c753a6a5f2d943ef8c124550bd76a217
work_keys_str_mv	AT ghoncherassam effectofnanobentoniteonphysicalandmechanicalpropertiesmediumdensityfiberboardmdf AT hamidrezataghiyari effectofnanobentoniteonphysicalandmechanicalpropertiesmediumdensityfiberboardmdf AT bratalikeshtegar effectofnanobentoniteonphysicalandmechanicalpropertiesmediumdensityfiberboardmdf
_version_	1718402493709287424

Effect of Nano–Bentonite on Physical and Mechanical Properties Medium Density Fiberboard (MDF)

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