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为了揭示落叶松木材难干易裂、渗透性小、浸注性差等性质与木材超微构造之间的内在联系,由汽蒸高温干燥过程中不同含水率阶段取样,制成相应碳膜,用透射电镜观察,初步得出结果:随着汽蒸高温干燥过程的逐步进行,纹孔膜塞缘上微纤丝束之间的沉积物质逐渐被除去,辐射状微纤丝束和交叉网状微纤丝束先后显露出来,微纤丝束和纹孔塞表面的沉积物质呈同样的减少趋势。
In order to reveal the intrinsic relationship between the properties of larch wood, such as easy to crack, low permeability and poor impregnability, and the ultrastructure of wood, samples were taken from different water cut stages during steaming and high temperature drying process to produce the corresponding carbon film The results of transmission electron microscopy showed that with the progress of steaming and high temperature drying, the deposition material between the microfibril bundles on the plugging edge of the pits was gradually removed, and the radial microfibril bundles and cross-reticular micro Fibril bundles have been revealed, microfibril bundles and pits on the surface of the deposition material showed the same decreasing trend.