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dc.contributor.authorZiglio, Analine Crespo
dc.contributor.authorSantos, Sabrina Nicoleti Carvalho
dc.contributor.authorMendes, Nadine [UNESP]
dc.contributor.authorGonçalves, Débora
dc.identifier.citationScientia Forestalis/Forest Sciences, v. 45, n. 113, p. 161-167, 2017.
dc.description.abstractThis study aims to investigate wettability, surface polarity, and mass loss in two reforestation woods, Pinus sp. (softwood) and Erisma sp (hardwood), after heat treatment. The wood samples were heated to 100 °C, 140 °C and 180 °C, meanwhile a control group was kept at a fixed temperature of 25 °C. Different test liquids were employed in order to obtain the contact angles (wetting angles) formed on the heat-treated sample surfaces. From such measurements, the values of surface free energy, in terms of its polar and dispersive components, were calculated by the Owens-Wendt-Rabel-Kaelble approach. Temperatures far below 180 °C proved to be high enough to yield hydrophobic samples, i.e., with relatively high wetting angles and low surface polarity, but without drastic visual and dimensional changes. The impact of heat treatment on the surface properties of Pinus sp. and Erisma sp. was also verified by fungal inoculation (Pycnoporus sanguineus). Compared to Pinus sp., heat-treated Erisma sp. showed improved properties, such as mass stability, surface polarity and wettability.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipUniversity of Illinois at Urbana-Champaign
dc.relation.ispartofScientia Forestalis/Forest Sciences
dc.subjectContact angles
dc.subjectDecay fungi
dc.subjectSurface free energy
dc.titleWettability and surface free energy on heat-treated Pinus sp. and Erisma sp. Woodsen
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationCiência e Engenharia de Materiais USP - Universidade de São Paulo IFSC - Instituto de Física de São Carlos, Avenida Trabalhador São Carlense, 400
dc.description.affiliationUNESP - Universidade Estadual 'Júlio de Mesquita Filho', Campus Assis - Av. Dom Antonio, 2100
dc.description.affiliationUnespUNESP - Universidade Estadual 'Júlio de Mesquita Filho', Campus Assis - Av. Dom Antonio, 2100
dc.rights.accessRightsAcesso restrito
dc.description.sponsorshipIdFAPESP: 2012/13003-5
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