Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taeda

The main objective of this study was to compare the effect of thermal pre-treatment in particles of strand type with the effect of variables of production on physical-mechanical properties of OSB panels, aiming to improve their dimensional stability. The experimental design consisted on five treatme...

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Autores principales:	Farinassi Mendes,Rafael, Bortoletto Júnior,Geraldo, Ferreira de Almeida,Natalie, Gabriella Surdi,Paula, Najm Barbeiro,Isabela
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2013
Materias:	OSB thermal pre-treatment variables of production physical-mechanical properties
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2013000200002
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spelling	oai:scielo:S0718-221X20130002000022014-07-14Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taedaFarinassi Mendes,RafaelBortoletto Júnior,GeraldoFerreira de Almeida,NatalieGabriella Surdi,PaulaNajm Barbeiro,Isabela OSB thermal pre-treatment variables of production physical-mechanical properties The main objective of this study was to compare the effect of thermal pre-treatment in particles of strand type with the effect of variables of production on physical-mechanical properties of OSB panels, aiming to improve their dimensional stability. The experimental design consisted on five treatments with the assessment of two temperatures of thermal treatment on particles (200 and 240°C) during 60 minutes; the increase of adhesive content, the application of paraffin in different treatments and a control treatment. For each treatment three panels with Phenol-Formaldehyde adhesive were produced. The cycle of pressing panels was: pressure of 3.5 MPa and temperature 160°C during 8 minutes. Analyzing the results of tests it was possible to conclude that: the thermal treatment of particles at 200°C promoted a negative effect on physical and mechanical properties, while thermal treatment of particles at 240°C promoted a significant improvement on physical properties and reduction of mechanical properties. The increase on adhesive content resulted in a significant improvement of WA24h, and the application of paraffin improved the WA2h and TS2h of panels, however such treatments were not so efficient on keeping the dimensional stability of OSB panels as a thermal treatment applied on particles at 240°C.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.15 n.2 20132013-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2013000200002en10.4067/S0718-221X2013005000012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	OSB thermal pre-treatment variables of production physical-mechanical properties
spellingShingle	OSB thermal pre-treatment variables of production physical-mechanical properties Farinassi Mendes,Rafael Bortoletto Júnior,Geraldo Ferreira de Almeida,Natalie Gabriella Surdi,Paula Najm Barbeiro,Isabela Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taeda
description	The main objective of this study was to compare the effect of thermal pre-treatment in particles of strand type with the effect of variables of production on physical-mechanical properties of OSB panels, aiming to improve their dimensional stability. The experimental design consisted on five treatments with the assessment of two temperatures of thermal treatment on particles (200 and 240°C) during 60 minutes; the increase of adhesive content, the application of paraffin in different treatments and a control treatment. For each treatment three panels with Phenol-Formaldehyde adhesive were produced. The cycle of pressing panels was: pressure of 3.5 MPa and temperature 160°C during 8 minutes. Analyzing the results of tests it was possible to conclude that: the thermal treatment of particles at 200°C promoted a negative effect on physical and mechanical properties, while thermal treatment of particles at 240°C promoted a significant improvement on physical properties and reduction of mechanical properties. The increase on adhesive content resulted in a significant improvement of WA24h, and the application of paraffin improved the WA2h and TS2h of panels, however such treatments were not so efficient on keeping the dimensional stability of OSB panels as a thermal treatment applied on particles at 240°C.
author	Farinassi Mendes,Rafael Bortoletto Júnior,Geraldo Ferreira de Almeida,Natalie Gabriella Surdi,Paula Najm Barbeiro,Isabela
author_facet	Farinassi Mendes,Rafael Bortoletto Júnior,Geraldo Ferreira de Almeida,Natalie Gabriella Surdi,Paula Najm Barbeiro,Isabela
author_sort	Farinassi Mendes,Rafael
title	Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taeda
title_short	Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taeda
title_full	Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taeda
title_fullStr	Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taeda
title_full_unstemmed	Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taeda
title_sort	effects of thermal pre-treatment and variables of production on properties of osb panels of pinus taeda
publisher	Universidad del Bío-Bío
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2013000200002
work_keys_str_mv	AT farinassimendesrafael effectsofthermalpretreatmentandvariablesofproductiononpropertiesofosbpanelsofpinustaeda AT bortolettojuniorgeraldo effectsofthermalpretreatmentandvariablesofproductiononpropertiesofosbpanelsofpinustaeda AT ferreiradealmeidanatalie effectsofthermalpretreatmentandvariablesofproductiononpropertiesofosbpanelsofpinustaeda AT gabriellasurdipaula effectsofthermalpretreatmentandvariablesofproductiononpropertiesofosbpanelsofpinustaeda AT najmbarbeiroisabela effectsofthermalpretreatmentandvariablesofproductiononpropertiesofosbpanelsofpinustaeda
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Effects of thermal pre-treatment and variables of production on properties of OSB panels of Pinus taeda

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