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Effect of thermal treatments on technological properties of wood from two Eucalyptus species 42
Cademartori,Pedro Henrique G. de; Missio,André L.; Mattos,Bruno D.; Gatto,Darci A..
The effect of thermal treatments on physical and mechanical properties of rose gum and Sydney blue gum wood was evaluated. Wood samples were thermally modified in a combination: pre-treatment in an autoclave (127°C - 1h) and treatment in an oven (180-240°C - 4h); and only treatment in an oven at 180-240°C for 4h. Chemical changes in the structure of woods were evaluated through infrared spectroscopy. Evaluation of physical properties was performed through mass loss, specific gravity, equilibrium moisture content and dimensional stability tests. Surface changes were analyzed through apparent contact angle technique and static bending tests were carried out to evaluate the mechanical behavior. Use of pre-treatment in autoclave affected the properties...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hygroscopicity; Chemical changes; Wettability; Heat treatment; Mechanical strength.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100471
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