Wood heat treatment in glycerin atmosphere
This study aimed to evaluate heat treatment of wood under glycerin atmosphere, that is residue of biodiesel industry, and indicate uses of the product in different wood markets. Six Eucalyptus grandis and E. cloeziana trees were selected from homogeneous plantation with 21 years old. Wood samples ta...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | Brasil |
| Institución: | Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
| Repositorio: | Pesquisa Florestal Brasileira (Online) |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/1183 |
| Acceso en línea: | https://pfb.sede.embrapa.br/pfb/article/view/1183 |
| Access Level: | acceso abierto |
| Palabra clave: | Biodiesel Higroscopicidade Colorimetria Hygroscopicity Colorimetry |
| Sumario: | This study aimed to evaluate heat treatment of wood under glycerin atmosphere, that is residue of biodiesel industry, and indicate uses of the product in different wood markets. Six Eucalyptus grandis and E. cloeziana trees were selected from homogeneous plantation with 21 years old. Wood samples taken from trees were laid in a laboratorial-scale oil bath with glycerin at 50 °C and they were heat-treated in glycerin atmosphere at 125 °C and 165 °C for 30 min. Control treatment was not heat-treated. Mass loss, changes in equilibrium moisture content and maximum water absorption were measured. Colorimetric parameters were determined by CIEL*a*b* system. A completely randomized design was applied, considering two temperatures and control treatment. Heat treatment in glycerin atmosphere decreased the equilibrium of moisture content and resulted in darker wood surface. Although heat-treated wood with glycerin shows restrictions related to water contact, it can be used indoors. |
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