Effect of thermal post-treatment on some surface-related properties of oriented strandboards

A very promising method for improving the dimensional stability of oriented strandboard (OSB) has been studied in Brazil since 2001. According to this method, the OSB is thermally treated under mild conditions using a hot-press, where it is reheated without high level of compression stress. The prop...

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Autores principales:	Cláudio Henrique Soares Del Menezzi, Raquel Bahia Ribeiro, Gerson Henrique Sternadt, Divino Eterno Teixeira, Esmeralda Yoshico Arakaki Okino
Formato:	article
Lenguaje:	EN
Publicado:	University of Zagreb, Faculty of Forestry and Wood Technology 2008
Materias:	Oriented strandboard Surface properties Thermal treatment Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/1fbd8a8294bf42f1bf1b80b279c2663a
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spelling	oai:doaj.org-article:1fbd8a8294bf42f1bf1b80b279c2663a2021-12-02T09:19:15ZEffect of thermal post-treatment on some surface-related properties of oriented strandboards0012-6772https://doaj.org/article/1fbd8a8294bf42f1bf1b80b279c2663a2008-07-01T00:00:00Zhttp://hrcak.srce.hr/file/40063https://doaj.org/toc/0012-6772A very promising method for improving the dimensional stability of oriented strandboard (OSB) has been studied in Brazil since 2001. According to this method, the OSB is thermally treated under mild conditions using a hot-press, where it is reheated without high level of compression stress. The properties of the treated OSB panels are different from and enhanced compared to those untreated ones. It means that the treated OSB can be used in more severe uses, like concrete formwork. This paper aims to evaluate the effect of the proposed thermal treatment on nail-holding capability and on surface hardness of OSB. Samples from 42 commercials OSB were thermally treated according to two levels of temperature (190°C and 220°C) and three heating times (12, 16 and 20 min) using a single opening hot-press. For comparison, control panels were kept untreated. The following surface-related properties were evaluated: Janka hardness, nail-holding capability in a plane normal to the surface, in the edge of the panel, water absorption and thickness swelling (TS) of edge sealed samples, and four surface roughness parameters. According to the Dunnett test, there were significant differences between treated and untreated panels for nail-holding, dimensional stability and surface roughness. The factorial ANOVA identified that the temperature was the main factor governing these properties while the duration of the treatment had lesser effect. It was concluded that the proposed thermal treatment improved significantly dimensional stability and did not affect adversely the nail-holding capability and surface roughness of the treated OSBCláudio Henrique Soares Del MenezziRaquel Bahia RibeiroGerson Henrique SternadtDivino Eterno TeixeiraEsmeralda Yoshico Arakaki OkinoUniversity of Zagreb, Faculty of Forestry and Wood TechnologyarticleOriented strandboardSurface propertiesThermal treatmentForestrySD1-669.5ENDrvna Industrija, Vol 59, Iss 2, Pp 61-67 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Oriented strandboard Surface properties Thermal treatment Forestry SD1-669.5
spellingShingle	Oriented strandboard Surface properties Thermal treatment Forestry SD1-669.5 Cláudio Henrique Soares Del Menezzi Raquel Bahia Ribeiro Gerson Henrique Sternadt Divino Eterno Teixeira Esmeralda Yoshico Arakaki Okino Effect of thermal post-treatment on some surface-related properties of oriented strandboards
description	A very promising method for improving the dimensional stability of oriented strandboard (OSB) has been studied in Brazil since 2001. According to this method, the OSB is thermally treated under mild conditions using a hot-press, where it is reheated without high level of compression stress. The properties of the treated OSB panels are different from and enhanced compared to those untreated ones. It means that the treated OSB can be used in more severe uses, like concrete formwork. This paper aims to evaluate the effect of the proposed thermal treatment on nail-holding capability and on surface hardness of OSB. Samples from 42 commercials OSB were thermally treated according to two levels of temperature (190°C and 220°C) and three heating times (12, 16 and 20 min) using a single opening hot-press. For comparison, control panels were kept untreated. The following surface-related properties were evaluated: Janka hardness, nail-holding capability in a plane normal to the surface, in the edge of the panel, water absorption and thickness swelling (TS) of edge sealed samples, and four surface roughness parameters. According to the Dunnett test, there were significant differences between treated and untreated panels for nail-holding, dimensional stability and surface roughness. The factorial ANOVA identified that the temperature was the main factor governing these properties while the duration of the treatment had lesser effect. It was concluded that the proposed thermal treatment improved significantly dimensional stability and did not affect adversely the nail-holding capability and surface roughness of the treated OSB
format	article
author	Cláudio Henrique Soares Del Menezzi Raquel Bahia Ribeiro Gerson Henrique Sternadt Divino Eterno Teixeira Esmeralda Yoshico Arakaki Okino
author_facet	Cláudio Henrique Soares Del Menezzi Raquel Bahia Ribeiro Gerson Henrique Sternadt Divino Eterno Teixeira Esmeralda Yoshico Arakaki Okino
author_sort	Cláudio Henrique Soares Del Menezzi
title	Effect of thermal post-treatment on some surface-related properties of oriented strandboards
title_short	Effect of thermal post-treatment on some surface-related properties of oriented strandboards
title_full	Effect of thermal post-treatment on some surface-related properties of oriented strandboards
title_fullStr	Effect of thermal post-treatment on some surface-related properties of oriented strandboards
title_full_unstemmed	Effect of thermal post-treatment on some surface-related properties of oriented strandboards
title_sort	effect of thermal post-treatment on some surface-related properties of oriented strandboards
publisher	University of Zagreb, Faculty of Forestry and Wood Technology
publishDate	2008
url	https://doaj.org/article/1fbd8a8294bf42f1bf1b80b279c2663a
work_keys_str_mv	AT claudiohenriquesoaresdelmenezzi effectofthermalposttreatmentonsomesurfacerelatedpropertiesoforientedstrandboards AT raquelbahiaribeiro effectofthermalposttreatmentonsomesurfacerelatedpropertiesoforientedstrandboards AT gersonhenriquesternadt effectofthermalposttreatmentonsomesurfacerelatedpropertiesoforientedstrandboards AT divinoeternoteixeira effectofthermalposttreatmentonsomesurfacerelatedpropertiesoforientedstrandboards AT esmeraldayoshicoarakakiokino effectofthermalposttreatmentonsomesurfacerelatedpropertiesoforientedstrandboards
_version_	1718398109762977792

Effect of thermal post-treatment on some surface-related properties of oriented strandboards

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