Influence of modified graphite on formaldehyde emission from medium density fiberboard (MDF)

In this study, the effect of graphite and two modified graphite materials was investigated in reducing formaldehyde emission from medium density fiberboard (MDF). For this purpose, expanded graphite (EG) was synthesized from graphite (G) and modified expanded graphite (MnO2-EG) was produced through...

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Autores principales:	Reza Jazayeri, S. Kazemi Najafi, H. Younesi, A. Karegarfard
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2021
Materias:	uf resin expanded graphite manganese dioxide Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/856bac1549d74895a464393d3aec361d
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id	oai:doaj.org-article:856bac1549d74895a464393d3aec361d
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spelling	oai:doaj.org-article:856bac1549d74895a464393d3aec361d2021-12-02T14:29:30ZInfluence of modified graphite on formaldehyde emission from medium density fiberboard (MDF) 10.22092/IJWPR.2020.343601.16241735-09132383-112Xhttps://doaj.org/article/856bac1549d74895a464393d3aec361d2021-02-01T00:00:00Zhttps://ijwpr.areeo.ac.ir/article_122992_351c6171f43152cc15c9863858cfccec.pdf?lang=enhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XIn this study, the effect of graphite and two modified graphite materials was investigated in reducing formaldehyde emission from medium density fiberboard (MDF). For this purpose, expanded graphite (EG) was synthesized from graphite (G) and modified expanded graphite (MnO2-EG) was produced through the intercalation process of expanded graphite with manganese dioxide. Thus, three graphite materials were prepared for resin treatment. Molecular tests including X-ray diffraction (XRD) and X-ray diffraction spectroscopy (SEM-EDS) were performed to determine their molecular properties. In addition, the differential scanning calorimetry (DSC) test was performed to evaluate the thermal behavior of the resin under the influence of any graphite materials as an additive. The additives were added to urea formaldehyde resin at three levels of consumption of 1, 2 and 3%, and then medium density fiberboard (MDF) was made from glued fibers with a density of 750 kg/m3. After making the board, the formaldehyde emission test was performed by desiccator method. Overall, MnO2-EG showed better results than control and two other graphite treatments. The best performance was resulted using MnO2-EG at 3% and formaldehyde emission was reduced by about 61%. It seems that the formaldehyde molecules absorbed on the expanded graphite layers which are exposed to oxidation by manganese dioxide molecules. On the other hand, as the DSC test showed, the highest enthalpy reaction occurred in MnO2-EG-incorporated resin, indicating the increased chemical reaction with formaldehyde molecules in the UF resin structure. Reza JazayeriS. Kazemi NajafiH. YounesiA. KaregarfardRegional Information Center for Science and Technology (RICeST)articleuf resinexpanded graphitemanganese dioxideForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 35, Iss 4, Pp 348-361 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	uf resin expanded graphite manganese dioxide Forestry SD1-669.5
spellingShingle	uf resin expanded graphite manganese dioxide Forestry SD1-669.5 Reza Jazayeri S. Kazemi Najafi H. Younesi A. Karegarfard Influence of modified graphite on formaldehyde emission from medium density fiberboard (MDF)
description	In this study, the effect of graphite and two modified graphite materials was investigated in reducing formaldehyde emission from medium density fiberboard (MDF). For this purpose, expanded graphite (EG) was synthesized from graphite (G) and modified expanded graphite (MnO2-EG) was produced through the intercalation process of expanded graphite with manganese dioxide. Thus, three graphite materials were prepared for resin treatment. Molecular tests including X-ray diffraction (XRD) and X-ray diffraction spectroscopy (SEM-EDS) were performed to determine their molecular properties. In addition, the differential scanning calorimetry (DSC) test was performed to evaluate the thermal behavior of the resin under the influence of any graphite materials as an additive. The additives were added to urea formaldehyde resin at three levels of consumption of 1, 2 and 3%, and then medium density fiberboard (MDF) was made from glued fibers with a density of 750 kg/m3. After making the board, the formaldehyde emission test was performed by desiccator method. Overall, MnO2-EG showed better results than control and two other graphite treatments. The best performance was resulted using MnO2-EG at 3% and formaldehyde emission was reduced by about 61%. It seems that the formaldehyde molecules absorbed on the expanded graphite layers which are exposed to oxidation by manganese dioxide molecules. On the other hand, as the DSC test showed, the highest enthalpy reaction occurred in MnO2-EG-incorporated resin, indicating the increased chemical reaction with formaldehyde molecules in the UF resin structure.
format	article
author	Reza Jazayeri S. Kazemi Najafi H. Younesi A. Karegarfard
author_facet	Reza Jazayeri S. Kazemi Najafi H. Younesi A. Karegarfard
author_sort	Reza Jazayeri
title	Influence of modified graphite on formaldehyde emission from medium density fiberboard (MDF)
title_short	Influence of modified graphite on formaldehyde emission from medium density fiberboard (MDF)
title_full	Influence of modified graphite on formaldehyde emission from medium density fiberboard (MDF)
title_fullStr	Influence of modified graphite on formaldehyde emission from medium density fiberboard (MDF)
title_full_unstemmed	Influence of modified graphite on formaldehyde emission from medium density fiberboard (MDF)
title_sort	influence of modified graphite on formaldehyde emission from medium density fiberboard (mdf)
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2021
url	https://doaj.org/article/856bac1549d74895a464393d3aec361d
work_keys_str_mv	AT rezajazayeri influenceofmodifiedgraphiteonformaldehydeemissionfrommediumdensityfiberboardmdf AT skazeminajafi influenceofmodifiedgraphiteonformaldehydeemissionfrommediumdensityfiberboardmdf AT hyounesi influenceofmodifiedgraphiteonformaldehydeemissionfrommediumdensityfiberboardmdf AT akaregarfard influenceofmodifiedgraphiteonformaldehydeemissionfrommediumdensityfiberboardmdf
_version_	1718391203522674688

Influence of modified graphite on formaldehyde emission from medium density fiberboard (MDF)

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