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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
24/10/2016 |
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Data da última atualização: |
04/11/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CADEMARTORI, P. H. G. de; NISGOSKI, S.; MAGALHAES, W. L. E.; BOLZON DE MUNIZ, G. I. |
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Afiliação: |
Pedro Henrique G. de Cademartori, Doutorando da UFPR; Silvana Nisgoski, UFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Graciela Ines B. de Muniz, UFPR. |
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Título: |
Surface wettability of Brazilian tropical wood flooring treated with He plasma. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Maderas. Ciencia y Tecnologia, v. 18, n. 4, p. 715-722, 2016. |
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DOI: |
10.4067/S0718-221X2016005000062 |
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Idioma: |
Inglês |
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Conteúdo: |
This study investigated the effect of plasma treatment on changes of surface wettability of wood flooring from two Brazilian tropical species, Hymenaea spp. (rode locus) and Tabebuia spp. (lapacho). Wood flooring samples were plasma treated at low pressure in a helium atmosphere. Energy level was set at 100 W and four glow discharge times (5, 15, 30 and 45 s) were tested. Changes in wettability were investigated by measuring apparent contact angle, droplet volume and spreading contact area. The results showed less susceptibility of lapacho wood to the plasma treatments, while reduction of apparent contact angle in rode locus wood reached up to 76% for longer discharge times. In general, discharge time of 15 s produced the same effect as discharge of 45 s on wettability, which is important for industrial applications. Visual analyses revealed increase of water droplet spreading on lapacho wood surface, even though the variation of spreading contact area was not significant. Plasma treatment is feasible to improve wettability of tropical woods. Nevertheless, these findings should be investigated further due to the intrinsic characteristics of woods from tropical species. |
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Palavras-Chave: |
Gás hélio; Glow discharge; Helium gas; Molhabilidade; Piso de madeira; Plasma treatment; Spreading; Surface modification; Wetting. |
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Thesagro: |
Plasma; Tratamento. |
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Thesaurus Nal: |
Contact angle. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149180/1/2016-Washington-Maderas-Surface.pdf
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Marc: |
LEADER 02090naa a2200313 a 4500
001 2055273
005 2016-11-04
008 2016 bl uuuu u00u1 u #d
024 7 $a10.4067/S0718-221X2016005000062$2DOI
100 1 $aCADEMARTORI, P. H. G. de
245 $aSurface wettability of Brazilian tropical wood flooring treated with He plasma.$h[electronic resource]
260 $c2016
520 $aThis study investigated the effect of plasma treatment on changes of surface wettability of wood flooring from two Brazilian tropical species, Hymenaea spp. (rode locus) and Tabebuia spp. (lapacho). Wood flooring samples were plasma treated at low pressure in a helium atmosphere. Energy level was set at 100 W and four glow discharge times (5, 15, 30 and 45 s) were tested. Changes in wettability were investigated by measuring apparent contact angle, droplet volume and spreading contact area. The results showed less susceptibility of lapacho wood to the plasma treatments, while reduction of apparent contact angle in rode locus wood reached up to 76% for longer discharge times. In general, discharge time of 15 s produced the same effect as discharge of 45 s on wettability, which is important for industrial applications. Visual analyses revealed increase of water droplet spreading on lapacho wood surface, even though the variation of spreading contact area was not significant. Plasma treatment is feasible to improve wettability of tropical woods. Nevertheless, these findings should be investigated further due to the intrinsic characteristics of woods from tropical species.
650 $aContact angle
650 $aPlasma
650 $aTratamento
653 $aGás hélio
653 $aGlow discharge
653 $aHelium gas
653 $aMolhabilidade
653 $aPiso de madeira
653 $aPlasma treatment
653 $aSpreading
653 $aSurface modification
653 $aWetting
700 1 $aNISGOSKI, S.
700 1 $aMAGALHAES, W. L. E.
700 1 $aBOLZON DE MUNIZ, G. I.
773 $tMaderas. Ciencia y Tecnologia$gv. 18, n. 4, p. 715-722, 2016.
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Embrapa Florestas (CNPF) |
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