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为了弄清楚热处理木材细胞壁中的水分吸着环境，即由半纤维素和木素组成的无定形区构造的变化，本研究通过对未处理及１５０，１８０，２３０℃处理云杉材在温度为２０℃和５０℃时的水分吸着等温线的测定，得到了吸着水的微分吸着热ＱＬ、微分吸着自由能ΔＧ及微分吸着熵ＴΔＳ与水分吸着量Ｗ、热处理温度之间的关系．结果表明：①与未处理木材相比，热处理木材的水分吸着机构发生变化，即第一层吸着和第二层吸着不具有时间上的重叠性；②随着热处理温度的升高，水分吸着量减少，这是由于吸湿性的半纤维素发生变化而致；③在相对湿度为６０％时，微分吸着热ＱＬ和微分吸着熵ＴΔＳ随着热处理温度的升高而减少，这一现象意味着水分子与木材分子之间形成的氢键结合数量上的减少．
In order to clarify the moisture adsorption environment in the cell wall of the wood, that is, the change of the structure of the amorphous zone composed of hemicellulose and lignin, the study was conducted on the untreated and treated spruce-fir at 150, 180 and 230 ° C at a temperature of 20 ℃ and 50 ℃, the relationship between the differential adsorption heat QL, the differential adsorption free energy ΔG and the differential adsorption entropy TΔS and the moisture adsorption W and the heat treatment temperature were obtained. The results showed that: ① Compared with the untreated wood, the moisture sorption mechanism of heat-treated wood changed, that is, the first layer sorption and the second layer sorption did not overlap in time; ②With the increase of heat treatment temperature, Decrease, which is due to hygroscopic hemicellulose changes caused; ③ at 60% relative humidity, differential heat of adsorption QL and differential adsorption entropy TΔS decreases with the heat treatment temperature increases, a phenomenon that means water The number of hydrogen bonds formed between molecules and wood molecules is reduced.