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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
08/06/2017 |
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Data da última atualização: |
11/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CADEMARTORI, P. H. G. de; STAFFORD, L.; BLANCHET, P.; MAGALHAES, W. L. E.; BOLZON DE MUNIZ, G. I. |
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Afiliação: |
Pedro Henrique Gonzalez de Cademartori, Doutorando da UFPR; Luc Stafford, Departement de Physique, Universite de Montreal; Pierre Blanchet, NSERC; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Graciela Ines Bolzon de Muniz, UFPR. |
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Título: |
Enhancing the water repellency of wood surfaces by atmospheric pressure cold plasma deposition of fluorocarbon film. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
RSC Advances, v. 7, n. 46, p. 29159-29169, Jun. 2017. |
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DOI: |
10.1039/c7ra03334f |
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Idioma: |
Inglês |
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Conteúdo: |
In this study, fluorocarbon thin filmsweredepositedonthe surfaceofwhite spruce andBrazilian cedarwoods via atmospheric pressure dielectric barrier discharge in the afterglow mode with octafluoropropane gas. A pretreatment with oxygen plasma was introduced before the thin film deposition to determine if this plasma condition could increase the wood nano/micro roughness, helping to improve the hydrophobicity of the surface. The optimal conditions of water repellency for both woods were examined in terms of their resistance to aging in controlled conditions. The water contact angle measurements showed a hydrophobic surface with a stable angle for both woods. X-ray photoelectron spectroscopy reveals the presence of CF, CF2 and CF3 functional groups after the Ar/C3F8 plasma, especially for longer treatments. The open-air system of the plasma reactor leads to the simultaneous fluorination and incorporation of oxygen-containing groups. The pre-treatment of oxygen plasma increases the wood roughness; however, the chemical attachment of oxygen molecules is more significant, negatively affecting the degree of repellency of the plasma-coated woods. On the other hand, the fluorocarbon deposition increases the wood roughness and creates a hydrophobic surface simultaneously. Even with partial defluorination after aging, both plasma-coated woods retain a similar degree of water repellency, which partially avoid chemical reorganization of their surface due to environmental exposure. |
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Palavras-Chave: |
Atmospheric plasma; Filme de fluorcarbono; Hydrophobic surface; Molhabilidade; Plasma a frio; Plasma atmosférico; Plasma treatment; Superfície hidrofóbica; Surface modification; Wetting. |
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Thesagro: |
Madeira. |
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Thesaurus Nal: |
Wood treatment. |
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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/160655/1/2017-Washington-RCSA-Enhancing.pdf
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Marc: |
LEADER 02486naa a2200325 a 4500
001 2070623
005 2017-07-11
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1039/c7ra03334f$2DOI
100 1 $aCADEMARTORI, P. H. G. de
245 $aEnhancing the water repellency of wood surfaces by atmospheric pressure cold plasma deposition of fluorocarbon film.$h[electronic resource]
260 $c2017
520 $aIn this study, fluorocarbon thin filmsweredepositedonthe surfaceofwhite spruce andBrazilian cedarwoods via atmospheric pressure dielectric barrier discharge in the afterglow mode with octafluoropropane gas. A pretreatment with oxygen plasma was introduced before the thin film deposition to determine if this plasma condition could increase the wood nano/micro roughness, helping to improve the hydrophobicity of the surface. The optimal conditions of water repellency for both woods were examined in terms of their resistance to aging in controlled conditions. The water contact angle measurements showed a hydrophobic surface with a stable angle for both woods. X-ray photoelectron spectroscopy reveals the presence of CF, CF2 and CF3 functional groups after the Ar/C3F8 plasma, especially for longer treatments. The open-air system of the plasma reactor leads to the simultaneous fluorination and incorporation of oxygen-containing groups. The pre-treatment of oxygen plasma increases the wood roughness; however, the chemical attachment of oxygen molecules is more significant, negatively affecting the degree of repellency of the plasma-coated woods. On the other hand, the fluorocarbon deposition increases the wood roughness and creates a hydrophobic surface simultaneously. Even with partial defluorination after aging, both plasma-coated woods retain a similar degree of water repellency, which partially avoid chemical reorganization of their surface due to environmental exposure.
650 $aWood treatment
650 $aMadeira
653 $aAtmospheric plasma
653 $aFilme de fluorcarbono
653 $aHydrophobic surface
653 $aMolhabilidade
653 $aPlasma a frio
653 $aPlasma atmosférico
653 $aPlasma treatment
653 $aSuperfície hidrofóbica
653 $aSurface modification
653 $aWetting
700 1 $aSTAFFORD, L.
700 1 $aBLANCHET, P.
700 1 $aMAGALHAES, W. L. E.
700 1 $aBOLZON DE MUNIZ, G. I.
773 $tRSC Advances$gv. 7, n. 46, p. 29159-29169, Jun. 2017.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 64 | |
| 44. |  | VIANA, L. C.; BOLZON DE MUNIZ, G. I.; HEIN, P. R. G.; MAGALHAES, W. L. E.; CARNEIRO, M. E. NIR spectrocospy can evaluate the crystallinity and the tensile and burst strenghts of nanocellulosic films. Maderas. Ciencia y Tecnología, Concepción, v. 18, n. 3, p. 493-504, jul. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 47. | | BOLZON DE MUÑIZ, G. I.; CORDEIRO, M. E.; NISGOSKI, S.; TANOBE, V.; MAGALHAES, W. L. E.; SATYANARAYANA, K. G. Treatment of Schizolobium parahyba var. amazonicum wood (Quanwood) laminates by styrene, furfural alcohol and nano silica is due by the end of this week. In: CONGRESO LATINOAMERICANO DE IUFRO, 3., 2013, San José. Bosques, competitividad y territorios sostenibles. San José: CATIE; [S.l.]: IUFRO, 2013. 1 p. IUFROLAT 2013. Disponibilizado online. Resumen.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 48. | | ALMEIDA, G. C. de; KLOCK, U.; MAGALHÃES, W. L. E.; BOLZON de MUNIZ, G. I.; ANDRADE, A. S. de. Utilização da espectroscopia de infravermelho próximo e calibração multivariada para previsão de propriedades físicas e mecânicas da madeira de Pinus spp. In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 4., 2005, Colombo. Anais. Colombo: Embrapa Florestas, 2005. 1 CD-ROM (Embrapa Florestas. Documentos, 117). EVINCI. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 51. | | CADEMARTORI, P. H. G. de; CARVALHO, A. R. de; MARANGONI, P. R. D.; BERTON, M. A. C.; BLANCHET, P.; BOLZON DE MUNIZ, G. I.; MAGALHAES, W. L. E. Adhesion performance and film formation of acrylic emulsion coating on mediumdensity fiberboard treated with Ar plasma. International Journal of Adhesion and Adhesives, v. 70, p. 322-328, Oct. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Florestas. |
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| 52. | | ANDRADE, D. R. M.; MENDONÇA, M. H.; HELM, C. V.; MAGALHAES, W. L. E.; BOLZON DE MUNIZ, G. I.; KESTUR, S. G. Assessment of nano cellulose from peach palm residue as potential food additive: part II: preliminary studies. Journal of Food Science and Technology, v. 52, n. 9, p. 5641-5650, Sept. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 53. | | BOLZON DE MUÑIZ, G. I.; LENGOWSKI, E. C.; NISGOSKI, S.; MAGALHÃES, W. L. E.; OLIVEIRA, V. T. de; HANSEL, F. A. Characterization of Pinus spp needles and evaluation of their potential use for energy. Cerne, Lavras, v. 20, n. 2, p. 245-250, abr./jun. 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Florestas. |
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| 54. | | LENGOWSKI, E. C.; NISGOSKI, S.; OLIVEIRA, V. T. de; BOLZÓN DE MUÑIZ, G. I.; MAGALHAES, W. L. E.; SATYANARAYANA, K. G. Development of composites of highly filled phenol formaldehyde resin: coconut (Cocos nucifera) endocarp particles. International Polymer Processing, v. 29, n. 4, p. 477-488, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 56. | | CADEMARTORI, P. H. G. de; MATTOS, B. D.; LOURENÇON, T. V.; HARRES, A. N.; CAPOBIANCO, G.; MATOS, M. de; BOLZON DE MUNIZ, G. I.; MAGALHAES, W. L. E. Production of activated carbon from fast-pyrolysis biochar. In: INTERNATIONAL SYMPOSIUM ON WOOD, FIBRE AND PULPING CHEMISTRY, 19., 2017, Porto Seguro. Proceedings. Viçosa, MG: UFV, 2017. p. 229-232.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 57. | | VIANA, L. C.; BOLZON DE MUÑIZ, G. I.; MAGALHAES, W. L. E.; ANDRADE, A. S. de; NIGOSKI, S.; POTULSKI, D. C. Nanostructured films produced from the bleached Pinus sp. kraft pulp. Floresta e Ambiente, Seropédica, v. 26, n. 4, e20150191, July 2019. 10 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 58. | | LOURENÇON, T. V.; ALAKURTII, S.; VIRTANEN, T.; JÄÄSKELÄINEN, A.-S.; LIITIÄ, T.; HUGHES, M.; MAGALHAES, W. L. E.; BOLZON DE MUNIZ, G. I.; TAMMINEN, T. Phenol-formaldehyde resins with suitable bonding strength synthesized from "less-reactive" hardwood lignin fractions. Holzforschung, v. 74, n. 2, p. 175-183, Feb. 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Florestas. |
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| 59. | | LOUREÇON, T. V.; MAGALHAES, W. L. E.; BOLZON de MUNIZ, G. I.; VIRTANEN, T.; JÄÄSKELÄINEN, A.-S.; LIITIA, T.; ALAKURTTI, S.; HUGHES, M.; TAMMINEN, T. Hardwood kraft lignin fractions as phenol substitute in phenol-form aldehyde resins. In: EUROPEAN WORKSHOP ON LIGNOCELLLULOSICS AND PULP, 15., 2018, Aveiro. Proceedings for posters presentations. [S.l.: s.n.], 2018. p. 399-402.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 64 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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