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渗透性反映流体通过木材的难易程度,是木材的重要物理特性之一,提高渗透性可以提高木材的干燥速度以及木材改性时流体的浸注效果。作者对杨木板材进行汽蒸、水煮及爆破处理来研究提高杨木板材的渗透性的因素。试验表明,这3种方法均能不同程度地提高杨木板材的渗透性,温度相同,汽蒸、水煮预处理时间越长,渗透性越大;时间相同,预处理温度高的渗透性好于温度低的渗透性。爆破预处理温度相同条件下,压力高的渗透性好于压力低的渗透性;相同爆破压力时,同样也是温度高的渗透性好于温度低的渗透性。
Permeability reflects the difficulty of the fluid passing through the wood and is one of the important physical characteristics of the wood. Increasing the permeability can increase the drying speed of the wood and the infusion effect of the fluid when the wood is modified. The author of poplar wood steamed, boiled and blasting treatment to improve the permeability of poplar wood elements. The results showed that these three methods could improve the permeability of poplar wood to varying degrees with the same temperature. The longer the time of steaming and boiled pretreatment, the greater the permeability; the same time, good permeability of pretreatment temperature Low temperature permeability. Under the same conditions of blasting pretreatment temperature, the high pressure permeability is better than the low pressure permeability; when the same burst pressure is also the high temperature permeability better than the low temperature permeability.