摘要
本文论述了泡桐木材流体渗透性,扩散性,吸着水与自由水的吸着与吸收动力学特性,密度和干缩性以及电镜观察结果;阐明了泡桐木材具有流体可渗透及可扩散路径,有着输导流体的天然机制,水、热处理难易一般;泡桐材本身并不具有隔潮耐湿性,但由于它密度低,胀缩小,变形和开裂的可能性亦小,用它干燥后制成的箱盒容器的密封性、隔潮耐湿性较好。
The experimental resuts of the air permeability, moisture diffusion below the fiber saturation point, adsorption and absorption of water, density, shrinkage and fine structure of the Paulownia genus woods were given in this paper. It was demonstrated that PauIownia wood has permeable and diffusive path for fluid as the other tree species, the movement of fluid through Paulownia wood is by the general mechanism for the fluid permeability and diffusion of wood, and the impregnation and drying rating with fluid or heating of Paulownia wood are moderate. Paulownia wood would not have the ability to resist water, but owing to its low density the percentage of shrinkage or swelling of Paulownia wood is comparatively small, so checks will not be often found in a chest made of Paulownia wood, which is considered with good hermetic seal, and the Paulownia wood has been misunderedstood to have some resistance against water.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1990年第3期239-246,共8页
Scientia Silvae Sinicae
关键词
泡桐木材
渗透性
扩散性
Permeability
Diffusion
Adsorption
Absorption
