Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine wood

Abstract: This study aimed to investigate the effect of thermal modification and nano-zinc oxide (nano-ZnO) particle impregnation on the deterioration of Caribbean pine wood under field conditions. Samples were thermally-modified at various temperature levels (control, 180 °C, 200 °C, and 220 °C). N...

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Autores principales:	Couto da Silva,Bruno, Trevisan,Henrique, Garcia,Rosilei Aparecida
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2020
Materias:	Deterioration index mass loss nano-zinc oxide particle termite tunnels wood deterioration.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400569
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spelling	oai:scielo:S0718-221X20200004005692020-10-07Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine woodCouto da Silva,BrunoTrevisan,HenriqueGarcia,Rosilei Aparecida Deterioration index mass loss nano-zinc oxide particle termite tunnels wood deterioration. Abstract: This study aimed to investigate the effect of thermal modification and nano-zinc oxide (nano-ZnO) particle impregnation on the deterioration of Caribbean pine wood under field conditions. Samples were thermally-modified at various temperature levels (control, 180 °C, 200 °C, and 220 °C). Nano-ZnO impregnation was done with an aqueous solution at 1,5 % in an autoclave under two-steps of pressure and vacuum. Unmodified and thermally-modified, non-impregnated and nano-ZnO impregnated samples were exposed to deterioration for five months in field tests. A deterioration index was used to evaluate the health condition of the samples. The mass loss and occurrence of termite tunnels in percentage were also determined. The nano-ZnO impregnation improved the resistance of unmodified wood to field-deterioration. The thermal modification at 180oC, and 200ºC increased the wood deterioration and nano-ZnO impregnation did not improve their resistance. Unmodified and 220 ºC modified samples had a lower mass loss by xylophages than other thermal treatments regardless of the nanoparticle impregnation. The nano-ZnO impregnation decreases the occurrence of termite tunnels in unmodified, 200 ºC and 220 ºC-modified samples.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.22 n.4 20202020-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400569en10.4067/S0718-221X2020005000415
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Deterioration index mass loss nano-zinc oxide particle termite tunnels wood deterioration.
spellingShingle	Deterioration index mass loss nano-zinc oxide particle termite tunnels wood deterioration. Couto da Silva,Bruno Trevisan,Henrique Garcia,Rosilei Aparecida Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine wood
description	Abstract: This study aimed to investigate the effect of thermal modification and nano-zinc oxide (nano-ZnO) particle impregnation on the deterioration of Caribbean pine wood under field conditions. Samples were thermally-modified at various temperature levels (control, 180 °C, 200 °C, and 220 °C). Nano-ZnO impregnation was done with an aqueous solution at 1,5 % in an autoclave under two-steps of pressure and vacuum. Unmodified and thermally-modified, non-impregnated and nano-ZnO impregnated samples were exposed to deterioration for five months in field tests. A deterioration index was used to evaluate the health condition of the samples. The mass loss and occurrence of termite tunnels in percentage were also determined. The nano-ZnO impregnation improved the resistance of unmodified wood to field-deterioration. The thermal modification at 180oC, and 200ºC increased the wood deterioration and nano-ZnO impregnation did not improve their resistance. Unmodified and 220 ºC modified samples had a lower mass loss by xylophages than other thermal treatments regardless of the nanoparticle impregnation. The nano-ZnO impregnation decreases the occurrence of termite tunnels in unmodified, 200 ºC and 220 ºC-modified samples.
author	Couto da Silva,Bruno Trevisan,Henrique Garcia,Rosilei Aparecida
author_facet	Couto da Silva,Bruno Trevisan,Henrique Garcia,Rosilei Aparecida
author_sort	Couto da Silva,Bruno
title	Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine wood
title_short	Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine wood
title_full	Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine wood
title_fullStr	Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine wood
title_full_unstemmed	Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine wood
title_sort	effect of the thermal modification and nano-zno impregnation on the deterioration of caribbean pine wood
publisher	Universidad del Bío-Bío
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000400569
work_keys_str_mv	AT coutodasilvabruno effectofthethermalmodificationandnanoznoimpregnationonthedeteriorationofcaribbeanpinewood AT trevisanhenrique effectofthethermalmodificationandnanoznoimpregnationonthedeteriorationofcaribbeanpinewood AT garciarosileiaparecida effectofthethermalmodificationandnanoznoimpregnationonthedeteriorationofcaribbeanpinewood
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Effect of the thermal modification and nano-ZnO impregnation on the deterioration of Caribbean pine wood

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