Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood

Effects of alfalfa-intercropping and nanosilver-impregnation were studied here on the specific gas permeability of 10-year old Populus nigra var. betulifolia. Specimens were impregnated with a 200 ppm aqueous dispersion of silver nanoparticles under 250 kPa pressure; the results were then compared w...

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Autor principal:	Taghiyari,Hamid Reza
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2014
Materias:	Alfalfa specific gas permeability diameter increment intercropping Populus nigra
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2014000100005
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spelling	oai:scielo:S0718-221X20140001000052014-03-12Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar woodTaghiyari,Hamid Reza Alfalfa specific gas permeability diameter increment intercropping Populus nigra Effects of alfalfa-intercropping and nanosilver-impregnation were studied here on the specific gas permeability of 10-year old Populus nigra var. betulifolia. Specimens were impregnated with a 200 ppm aqueous dispersion of silver nanoparticles under 250 kPa pressure; the results were then compared with the un-impregnated specimens. The size range of silver nanoparticles was 10 to 80 nm. After the initial measurement, specimens were kept in vaporized chamber for six months (43±2°C, and 80±3% relative humidity); permeability was measured every month. Results showed that maximum specific longitudinal gas permeability was observed in the nanosilver-impregnated inner-wood specimens of the treatment with alfalfa (1614,4 × 10-13 m³ m-1), and minimum permeability was found in the un-impregnated outer-wood specimens of the treatment without alfalfa (491,7 × 10-13 m³ m-1) before the vaporization. Vaporized chamber made permeability decrease permeability at the first phases because of the absorption of water vapors and the consequent swelling; however, due to the proliferation of pits and perforation plates by fungi and molds, permeability was eventually increased. Antibacterial property of silver did not significantly decrease the growth of molds and fungi in the nanosilver-impregnated specimens.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.16 n.1 20142014-02-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2014000100005en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Alfalfa specific gas permeability diameter increment intercropping Populus nigra
spellingShingle	Alfalfa specific gas permeability diameter increment intercropping Populus nigra Taghiyari,Hamid Reza Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood
description	Effects of alfalfa-intercropping and nanosilver-impregnation were studied here on the specific gas permeability of 10-year old Populus nigra var. betulifolia. Specimens were impregnated with a 200 ppm aqueous dispersion of silver nanoparticles under 250 kPa pressure; the results were then compared with the un-impregnated specimens. The size range of silver nanoparticles was 10 to 80 nm. After the initial measurement, specimens were kept in vaporized chamber for six months (43±2°C, and 80±3% relative humidity); permeability was measured every month. Results showed that maximum specific longitudinal gas permeability was observed in the nanosilver-impregnated inner-wood specimens of the treatment with alfalfa (1614,4 × 10-13 m³ m-1), and minimum permeability was found in the un-impregnated outer-wood specimens of the treatment without alfalfa (491,7 × 10-13 m³ m-1) before the vaporization. Vaporized chamber made permeability decrease permeability at the first phases because of the absorption of water vapors and the consequent swelling; however, due to the proliferation of pits and perforation plates by fungi and molds, permeability was eventually increased. Antibacterial property of silver did not significantly decrease the growth of molds and fungi in the nanosilver-impregnated specimens.
author	Taghiyari,Hamid Reza
author_facet	Taghiyari,Hamid Reza
author_sort	Taghiyari,Hamid Reza
title	Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood
title_short	Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood
title_full	Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood
title_fullStr	Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood
title_full_unstemmed	Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood
title_sort	effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood
publisher	Universidad del Bío-Bío
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2014000100005
work_keys_str_mv	AT taghiyarihamidreza effectsofnanosilverimpregnationandalfalfaintercroppingonfluidtransferindownyblackpoplarwood
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Effects of nanosilver-impregnation and alfalfa-intercropping on fluid transfer in downy black poplar wood

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