Efeito da retificação térmica nas características e propriedades físicas de madeira Pinus elliottii

• Autor(a) principal: Belezia, Camilo Araújo [UNESP]
• Data de Publicação: 2015
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/155602; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2017-07-11/000886250.pdf
• topic: Madeira - Propriedades físicas; Termorretificação; Pinus elliottii; Wood

The usage of renewable materials and new clean technologies are increasingly gaining market share and the consciousness of population, because these products are involved in the maintenance of the environment. Among these technologies, it glimpses the possibility of treating lignocellulosic materials with the usage of heat. It has grown each more time the market of thermally rectified wood, which in the case of the species under study, it can compete with woods protected by law in areas previously dominated by them. In this study, it was studied the thermally rectified Pinus elliottii's characteristics, and after the treatment, it was being analyzed the wood physical characteristics such as specific gravities, linear retractilities, the linear and volumetric swells, possible defects and the weight loss of boards. The final thermal rectification temperatures were 140°C, 160°C, 180°C and 200°C. This project was undertaken with the opportunity to, with a treatment without the use of materials that harm the environment, a more stable wood dimensionally, less hygroscopic and more natural resistance when in contact with different temperatures and humidity of your application environment . Thus it was concluded that the timber had a better dimensional stability after the treatment, changes in the organoleptic properties and the best results were found in the heat treatment temperature of 180°C