热处理改性木材的性能分析Ⅲ——热处理材的防霉性能

Mold Inhibition of Heat-Treated Lumber

检测了4种热处理材的防霉性能,以及桦木和樟子松热处理材中还原糖的含量。结果表明,热处理材的含糖量升高,且表面部分比中间部分高。故热处理材比其素材更易长霉,尤其是木材表面部分。清漆处理可避免木材霉变。

This study was performed to evaluate the mildew resistance ot neat-treateo tumbel. Dinitrosalicylic acid was used to estimate the sugar content in heat-treated birch and Mongolian pine samples. The results showed that heat-treated lumber was more susceptible to mold growth than their untreated control samples. Furthermore, the outside layers of the heat-treated samples were more prone to mold growth than the inside layers. No mold growth was observed on the surfaces coated with varnish. The sugar content of heat-treated samples increased with higher treatment temperature and the sugar content of the outside layers was usually higher than the core.