EFECTO DE LA TEMPERATURA DE TERMOTRATAMIENTO EN EL COMPORTAMIENTO ELÉCTRICO DE LA MADERA DE PINO RADIATA
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Universidad del Bío Bío
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This paper analyzes the effect of heat treatment temperature on the electrical conductivity of radiata pine wood. On specimens of radiata pine of the Basque Country provenance (Spain), heat treated at 190°C and 210°C by the method Thermowood as well as not treated matched samples, conditioned up to constant mass at the standard conditions of 20°C/40%; 20°C/65% and 20°C/90% RH the electrical resistance (longitudinal and transverse) was measured and a Samuelsson model fitted to describe the relationship between the electrical resistance and moisture content of each material. From the data is concluded that the temperature employed in the thermal treatment timber not only affects equilibrium moisture content of wood but also to its electrical conductivity, being this effect maximum in the processing performed at 210°C.
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