Plasticity increase of beech veneer by steaming and gaseous ammonia treatment

Ammonia treatment was used in order to change the colour of wood and also to plasticize the wood before bending or compressing. The mechanism and the process of gaseous ammonia treatment impact on wood are not very well known. The goal of this study was to quantify the effect of gaseous ammonia on m...

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Autores principales: Šprdlík,Václav, Brabec,Martin, Mihailović,Stefan, Rademacher,Peter
Lenguaje:English
Publicado: Universidad del Bío-Bío 2016
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2016000100009
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spelling oai:scielo:S0718-221X20160001000092016-03-30Plasticity increase of beech veneer by steaming and gaseous ammonia treatmentŠprdlík,VáclavBrabec,MartinMihailović,StefanRademacher,Peter Fagus sylvatica mechanical properties modulus of elasticity modulus of rupture plasticization Ammonia treatment was used in order to change the colour of wood and also to plasticize the wood before bending or compressing. The mechanism and the process of gaseous ammonia treatment impact on wood are not very well known. The goal of this study was to quantify the effect of gaseous ammonia on mechanical properties, i.e., modulus of elasticity (MOE), modulus of rupture (MOR) and deflection at maximal loading force (yFmax). When wood was treated by water and ammonia vapour together, significant changes in plasticity of wood were observed. The samples which were firstly exposed to water vapour and then to ammonia vapour exhibit the lowest values of MOE and MOR and an enhanced flexibility of the material. The results show that ammonia treatment increases wood plasticity. This process can be used for manufacturing of bent furniture.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.18 n.1 20162016-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2016000100009en10.4067/S0718-221X2016005000009
institution Scielo Chile
collection Scielo Chile
language English
topic Fagus sylvatica
mechanical properties
modulus of elasticity
modulus of rupture
plasticization
spellingShingle Fagus sylvatica
mechanical properties
modulus of elasticity
modulus of rupture
plasticization
Šprdlík,Václav
Brabec,Martin
Mihailović,Stefan
Rademacher,Peter
Plasticity increase of beech veneer by steaming and gaseous ammonia treatment
description Ammonia treatment was used in order to change the colour of wood and also to plasticize the wood before bending or compressing. The mechanism and the process of gaseous ammonia treatment impact on wood are not very well known. The goal of this study was to quantify the effect of gaseous ammonia on mechanical properties, i.e., modulus of elasticity (MOE), modulus of rupture (MOR) and deflection at maximal loading force (yFmax). When wood was treated by water and ammonia vapour together, significant changes in plasticity of wood were observed. The samples which were firstly exposed to water vapour and then to ammonia vapour exhibit the lowest values of MOE and MOR and an enhanced flexibility of the material. The results show that ammonia treatment increases wood plasticity. This process can be used for manufacturing of bent furniture.
author Šprdlík,Václav
Brabec,Martin
Mihailović,Stefan
Rademacher,Peter
author_facet Šprdlík,Václav
Brabec,Martin
Mihailović,Stefan
Rademacher,Peter
author_sort Šprdlík,Václav
title Plasticity increase of beech veneer by steaming and gaseous ammonia treatment
title_short Plasticity increase of beech veneer by steaming and gaseous ammonia treatment
title_full Plasticity increase of beech veneer by steaming and gaseous ammonia treatment
title_fullStr Plasticity increase of beech veneer by steaming and gaseous ammonia treatment
title_full_unstemmed Plasticity increase of beech veneer by steaming and gaseous ammonia treatment
title_sort plasticity increase of beech veneer by steaming and gaseous ammonia treatment
publisher Universidad del Bío-Bío
publishDate 2016
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2016000100009
work_keys_str_mv AT 352prdlikvaclav plasticityincreaseofbeechveneerbysteamingandgaseousammoniatreatment
AT brabecmartin plasticityincreaseofbeechveneerbysteamingandgaseousammoniatreatment
AT mihailovi263stefan plasticityincreaseofbeechveneerbysteamingandgaseousammoniatreatment
AT rademacherpeter plasticityincreaseofbeechveneerbysteamingandgaseousammoniatreatment
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