Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings

In this research, the effects of poplar wood surface modification using sol-gel method on the quality of alkyd and polyurethane coatings for outdoor application were studied. For this purpose, the wood surface was modified with Tetraethoxy‌silane (T) sol-gel material. Then, solvent-borne alkyd (AS)...

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Main Authors:	Hadi Gholamiyan, asghar tarmian, kambiz pourtahmasi
Format:	Article
Language:	fas
Published:	Iranian Scientific Association of Wood and Paper Industries 2018-02-01
Series:	Iranian Journal of Wood and Paper Industries
Subjects:	Coating Sol-gel alkyd Polyurethane Weathering
Online Access:	http://www.ijwp.ir/article_24426_266f29e432ed78d78338ad2f56e8c76e.pdf

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spelling	doaj-d47b77c36056431d95eb4831627590242020-11-24T22:58:32Zfas Iranian Scientific Association of Wood and Paper IndustriesIranian Journal of Wood and Paper Industries2008-90662423-32422018-02-018450952024426Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatingsHadi Gholamiyan0asghar tarmian1kambiz pourtahmasi2Assistant Prof., Department of wood and paper science & technology, Faculty of natural resources, University of Tehran, Karaj, IranAssociate Prof., Department of wood and paper science & technology, Faculty of natural resources, University of Tehran, Karaj, IranProfessor, Department of wood and paper science & technology, Faculty of natural resources, University of Tehran, Karaj, IranIn this research, the effects of poplar wood surface modification using sol-gel method on the quality of alkyd and polyurethane coatings for outdoor application were studied. For this purpose, the wood surface was modified with Tetraethoxy‌silane (T) sol-gel material. Then, solvent-borne alkyd (AS) and solvent-borne polyurethane (PS) coatings were applied. The quality of coatings was evaluated by microscopic observation using fluorescence, confocal laser scanning microscopy (CLSM) and EDX-SEM. The results of EDX showed a noticeable silicon peak in the sol-gel-treated specimens. The results of fluorescence microscopic studies showed that alkyd and polyurethane coatings only present in the cell lumens but the sol-gel penetrates into the cell walls. Laser microscope results showed that the modification of wood surface with sol-gel process reduces the roughness of alkyd and polyurethane coatings caused by weathering.http://www.ijwp.ir/article_24426_266f29e432ed78d78338ad2f56e8c76e.pdfCoatingSol-gelalkydPolyurethaneWeathering
collection	DOAJ
language	fas
format	Article
sources	DOAJ
author	Hadi Gholamiyan asghar tarmian kambiz pourtahmasi
spellingShingle	Hadi Gholamiyan asghar tarmian kambiz pourtahmasi Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings Iranian Journal of Wood and Paper Industries Coating Sol-gel alkyd Polyurethane Weathering
author_facet	Hadi Gholamiyan asghar tarmian kambiz pourtahmasi
author_sort	Hadi Gholamiyan
title	Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings
title_short	Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings
title_full	Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings
title_fullStr	Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings
title_full_unstemmed	Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings
title_sort	microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings
publisher	Iranian Scientific Association of Wood and Paper Industries
series	Iranian Journal of Wood and Paper Industries
issn	2008-9066 2423-3242
publishDate	2018-02-01
description	In this research, the effects of poplar wood surface modification using sol-gel method on the quality of alkyd and polyurethane coatings for outdoor application were studied. For this purpose, the wood surface was modified with Tetraethoxy‌silane (T) sol-gel material. Then, solvent-borne alkyd (AS) and solvent-borne polyurethane (PS) coatings were applied. The quality of coatings was evaluated by microscopic observation using fluorescence, confocal laser scanning microscopy (CLSM) and EDX-SEM. The results of EDX showed a noticeable silicon peak in the sol-gel-treated specimens. The results of fluorescence microscopic studies showed that alkyd and polyurethane coatings only present in the cell lumens but the sol-gel penetrates into the cell walls. Laser microscope results showed that the modification of wood surface with sol-gel process reduces the roughness of alkyd and polyurethane coatings caused by weathering.
topic	Coating Sol-gel alkyd Polyurethane Weathering
url	http://www.ijwp.ir/article_24426_266f29e432ed78d78338ad2f56e8c76e.pdf
work_keys_str_mv	AT hadigholamiyan microscopicinvestigationontheeffectsofwoodsurfacemodificationwithsolgelmethodonthequalityofpolyurethaneandalkydcoatings AT asghartarmian microscopicinvestigationontheeffectsofwoodsurfacemodificationwithsolgelmethodonthequalityofpolyurethaneandalkydcoatings AT kambizpourtahmasi microscopicinvestigationontheeffectsofwoodsurfacemodificationwithsolgelmethodonthequalityofpolyurethaneandalkydcoatings
_version_	1725646929366351872

Microscopic investigation on the effects of wood surface modification with sol-gel method on the quality of polyurethane and alkyd coatings

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