抄録
We carbonized the wood waste generated in Shimane Prefecture into humidity-controlling charcoal for use in housing and examined its properties. Though the moisture adsorption isotherm curve of the wood waste was a reverse S-shaped sigmoid curve, that of the charcoal produced was an S-shaped sigmoid curve. This suggests the possible presence of new mesopores (2-50nm) resulting from carbonization. As the relative humidity increased, the percentage of moisture retained by the charcoal in the process of moisture adsorption and desorption increased, but the overall amount slightly decreased.