| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
11/04/2016 |
|
Data da última atualização: |
10/07/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MATTOS, B. D.; MISSIO, A. L.; CADEMARTORI, P. H. G. de; GATTO, D. A.; MAGALHAES, W. L. E. |
|
Afiliação: |
Bruno D. Mattos, Integrated program in Engineering & Materials Science (PIPE), UFPR; André L. Missio, Forestry Engineering (PPGEF), UFSM; Pedro H. G. de Cademartori, Wood and Forestry Science Center (PPGEF), UFPR; Darci A. Gatto, Professor da UFSM; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF. |
|
Título: |
Color changes of wood from Pinus taeda and Schizolobium parahybum treated by in situ polymerization of methyl methacrylate using cross-linkers. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Maderas. Ciencia y tecnología, Concepción, v. 18, n. 1, p. 113-124, ene. 2016. |
|
DOI: |
10.4067/S0718-221X2016005000012 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The aim of this study was to evaluate the colorimetric properties of Pinus taeda and Schizolobium parahybum woods treated by in situ polymerization. The wood samples were impregnated in a vacuum/ pressure system and polymerized in an oven at 90°C for 10h, using benzoyl peroxide at 1,5wt% as the catalyst. The treatments were characterized using attenuated total reflectance infrared (ATRIR) spectroscopy and weight percentage gain (WPG). The color evaluation was performed using CIEL*a*b* concepts, specular gloss, and UV-Visible spectrophotometry. Treated woods showed increases in band intensity related to polymers (1730, 1460 and 1145 cm-1), and WPG ranged from 39 to 164%, depending of the wood species and treatments. Lightness decreased, while the Chroma, gloss and the color coordinates increased. A darkening of the all treated samples was observed, and confirmed by the decrease in the reflectance intensity between 400 and 700 nm. |
|
Palavras-Chave: |
Composites (materials); Espécie exótica; Free radical polymerization; Heat catalyst; Schizolobium parahybum; UV-Vis. |
|
Thesagro: |
Espécie nativa; Madeira; Pinus Taeda; Tratamento. |
|
Thesaurus Nal: |
Polymers; Wood treatment. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142217/1/2016-Washington-Maderas-Collor.pdf
|
|
Marc: |
LEADER 01978naa a2200325 a 4500
001 2043030
005 2017-07-10
008 2016 bl uuuu u00u1 u #d
024 7 $a10.4067/S0718-221X2016005000012$2DOI
100 1 $aMATTOS, B. D.
245 $aColor changes of wood from Pinus taeda and Schizolobium parahybum treated by in situ polymerization of methyl methacrylate using cross-linkers.$h[electronic resource]
260 $c2016
520 $aThe aim of this study was to evaluate the colorimetric properties of Pinus taeda and Schizolobium parahybum woods treated by in situ polymerization. The wood samples were impregnated in a vacuum/ pressure system and polymerized in an oven at 90°C for 10h, using benzoyl peroxide at 1,5wt% as the catalyst. The treatments were characterized using attenuated total reflectance infrared (ATRIR) spectroscopy and weight percentage gain (WPG). The color evaluation was performed using CIEL*a*b* concepts, specular gloss, and UV-Visible spectrophotometry. Treated woods showed increases in band intensity related to polymers (1730, 1460 and 1145 cm-1), and WPG ranged from 39 to 164%, depending of the wood species and treatments. Lightness decreased, while the Chroma, gloss and the color coordinates increased. A darkening of the all treated samples was observed, and confirmed by the decrease in the reflectance intensity between 400 and 700 nm.
650 $aPolymers
650 $aWood treatment
650 $aEspécie nativa
650 $aMadeira
650 $aPinus Taeda
650 $aTratamento
653 $aComposites (materials)
653 $aEspécie exótica
653 $aFree radical polymerization
653 $aHeat catalyst
653 $aSchizolobium parahybum
653 $aUV-Vis
700 1 $aMISSIO, A. L.
700 1 $aCADEMARTORI, P. H. G. de
700 1 $aGATTO, D. A.
700 1 $aMAGALHAES, W. L. E.
773 $tMaderas. Ciencia y tecnología, Concepción$gv. 18, n. 1, p. 113-124, ene. 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Clima Temperado. |
|
Data corrente: |
14/12/2018 |
|
Data da última atualização: |
14/12/2018 |
|
Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
|
Autoria: |
SILVEIRA, C. A. P.; CARDOSO, J. H.; CRUZ, M. T. P. da; SANDER, A.; MICHELIN, C.; ARAÚJO, V. F.; BECKER, S.; BALDEZ, D. L.; PERRES, M. M.; KOHLER, T. W. |
|
Afiliação: |
CARLOS AUGUSTO POSSER SILVEIRA, CPACT; JOEL HENRIQUE CARDOSO, CNPAT; Maria Tarciana Pereira da Cruz; Andréa Sander; Cassiana Michelin; Vanessa Fernandes Araújo; Simoni Becker; Daiane Leal Baldez; Milena Moreira Peres; Thaís Wacholz Kohler. |
|
Título: |
Produção de biomassa e acúmulo de nutrientes em plantas de Tithonia diversifolia a partir de diferentes agrominerais. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Pelotas: Embrapa Clima Temperado, 2018. |
|
Páginas: |
26 p. |
|
Série: |
(Clima Temperado. Boletim de Pesquisa e Desenvolvimento, 297). |
|
Idioma: |
Português |
|
Thesagro: |
Adubo Verde; Biomassa; Mineralogia. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188434/1/BOLETIM-297.pdf
|
|
Marc: |
LEADER 00823nam a2200265 a 4500
001 2101566
005 2018-12-14
008 2018 bl uuuu u0uu1 u #d
100 1 $aSILVEIRA, C. A. P.
245 $aProdução de biomassa e acúmulo de nutrientes em plantas de Tithonia diversifolia a partir de diferentes agrominerais.$h[electronic resource]
260 $aPelotas: Embrapa Clima Temperado$c2018
300 $a26 p.
490 $a(Clima Temperado. Boletim de Pesquisa e Desenvolvimento, 297).
650 $aAdubo Verde
650 $aBiomassa
650 $aMineralogia
700 1 $aCARDOSO, J. H.
700 1 $aCRUZ, M. T. P. da
700 1 $aSANDER, A.
700 1 $aMICHELIN, C.
700 1 $aARAÚJO, V. F.
700 1 $aBECKER, S.
700 1 $aBALDEZ, D. L.
700 1 $aPERRES, M. M.
700 1 $aKOHLER, T. W.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Clima Temperado (CPACT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
