Investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate

This research was conducted to investigate the effect of modification with maleic anhydride and methyl methacrylate on mechanical properties and decay resistance of poplar wood. Samples of mechanical and biological resistance tests were prepared according to ASTM D143-94 and EN113 standards. Treatme...

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Autores principales:	Azadeh Nikkhah Shahmirzadi, Maryam Ghorbani, Seyed Mojtaba Amininsab
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2015
Materias:	Keywords: Wood–polymer composite MECHANICAL PROPERTIES maleic anhydride methyl methacrylate decay resistance Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/37a456a05714464092c31efa96f9607a
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spelling	oai:doaj.org-article:37a456a05714464092c31efa96f9607a2021-12-02T05:06:01ZInvestigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate1735-09132383-112X10.22092/ijwpr.2015.13002https://doaj.org/article/37a456a05714464092c31efa96f9607a2015-09-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_13002_a97a6672751c55714abb2ca9865cb486.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XThis research was conducted to investigate the effect of modification with maleic anhydride and methyl methacrylate on mechanical properties and decay resistance of poplar wood. Samples of mechanical and biological resistance tests were prepared according to ASTM D143-94 and EN113 standards. Treatment levels were divided into 4 groups; control, methyl methacrylate, maleic anhydride and combined of maleic anhydride/ methyl methacrylate. Samples were impregnated with maleic anhydride and monomer using vacuum- pressure method with experimental cylinder. Maleic anhydride treated samples were heated in oven for 4 and 24 hours at 150 and 103ºC. For polymerization, methyl methacrylate monomer treated samples were heated in oven at 90ºC for 24 hours, consequently at 103ºC for the same time. Methyl methacrylate polymer coating formed on the cell wall, causing 22.57% improvement in the lateral stability under pressure parallel to grain. Highest value in modules of rupture, elasticity and hardness were measured in combined level with 24.13, 47.13 and 45.53% improvement compared with the control, respectively. Maleic anhydride in the presence of methyl methacrylate, with decreasing polarity of the wood and create a good distribution of the particle and the polymer, resulting in the cross linking formation and transmission of uniform tension that would lead to improved mechanical properties. Also, decay resistance was improved in all levels of modification, so that weight loss declined from 80.4% in control to 4.29% in combined level. Modified with maleic anhydride because of the wood composition change, reduction in moisture absorption ability of cell wall and bulking effect, and the presence of methyl methacrylate in the cell cavities as a physical barrier to the movement of fungi mycelium and moisture, were leading to improved decay resistance.Azadeh Nikkhah ShahmirzadiMaryam GhorbaniSeyed Mojtaba AmininsabRegional Information Center for Science and Technology (RICeST)articleKeywords: Wood–polymer compositeMECHANICAL PROPERTIESmaleic anhydridemethyl methacrylatedecay resistanceForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 30, Iss 3, Pp 490-503 (2015)
institution	DOAJ
collection	DOAJ
language	FA
topic	Keywords: Wood–polymer composite MECHANICAL PROPERTIES maleic anhydride methyl methacrylate decay resistance Forestry SD1-669.5
spellingShingle	Keywords: Wood–polymer composite MECHANICAL PROPERTIES maleic anhydride methyl methacrylate decay resistance Forestry SD1-669.5 Azadeh Nikkhah Shahmirzadi Maryam Ghorbani Seyed Mojtaba Amininsab Investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate
description	This research was conducted to investigate the effect of modification with maleic anhydride and methyl methacrylate on mechanical properties and decay resistance of poplar wood. Samples of mechanical and biological resistance tests were prepared according to ASTM D143-94 and EN113 standards. Treatment levels were divided into 4 groups; control, methyl methacrylate, maleic anhydride and combined of maleic anhydride/ methyl methacrylate. Samples were impregnated with maleic anhydride and monomer using vacuum- pressure method with experimental cylinder. Maleic anhydride treated samples were heated in oven for 4 and 24 hours at 150 and 103ºC. For polymerization, methyl methacrylate monomer treated samples were heated in oven at 90ºC for 24 hours, consequently at 103ºC for the same time. Methyl methacrylate polymer coating formed on the cell wall, causing 22.57% improvement in the lateral stability under pressure parallel to grain. Highest value in modules of rupture, elasticity and hardness were measured in combined level with 24.13, 47.13 and 45.53% improvement compared with the control, respectively. Maleic anhydride in the presence of methyl methacrylate, with decreasing polarity of the wood and create a good distribution of the particle and the polymer, resulting in the cross linking formation and transmission of uniform tension that would lead to improved mechanical properties. Also, decay resistance was improved in all levels of modification, so that weight loss declined from 80.4% in control to 4.29% in combined level. Modified with maleic anhydride because of the wood composition change, reduction in moisture absorption ability of cell wall and bulking effect, and the presence of methyl methacrylate in the cell cavities as a physical barrier to the movement of fungi mycelium and moisture, were leading to improved decay resistance.
format	article
author	Azadeh Nikkhah Shahmirzadi Maryam Ghorbani Seyed Mojtaba Amininsab
author_facet	Azadeh Nikkhah Shahmirzadi Maryam Ghorbani Seyed Mojtaba Amininsab
author_sort	Azadeh Nikkhah Shahmirzadi
title	Investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate
title_short	Investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate
title_full	Investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate
title_fullStr	Investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate
title_full_unstemmed	Investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate
title_sort	investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2015
url	https://doaj.org/article/37a456a05714464092c31efa96f9607a
work_keys_str_mv	AT azadehnikkhahshahmirzadi investigationonthemechanicalanddecayresistancepropertiesofwoodmodifiedwithmaleicanhydrideandmethylmetacrylate AT maryamghorbani investigationonthemechanicalanddecayresistancepropertiesofwoodmodifiedwithmaleicanhydrideandmethylmetacrylate AT seyedmojtabaamininsab investigationonthemechanicalanddecayresistancepropertiesofwoodmodifiedwithmaleicanhydrideandmethylmetacrylate
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Investigation on the mechanical and decay resistance properties of wood modified with maleic anhydride and methyl metacrylate

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