电场强度与作用时间对马尾松木材含水率梯度的影响

Effect of intensity and work time of electric field on moisture gradient of Pinus massoniana wood

将马尾松Pinusmassoniana板材置于不同的电场(相距为20mm电板间的一定电势差)中,经过不同时间的处理后,测试和分析其在厚度(高度)方向的含水率梯度,并与未经电场处理的板材比较,研究电场强度及其作用时间与马尾松木材含水率梯度的影响。研究结果表明:①电场强度与作用时间对马尾松木材厚度(高度)方向的含水率梯度有影响;②厚度(高度)方向的含水率梯度随电场强度(相距为20mm电板间的电势差)和作用时间的增加都有不断下移的趋势;③电场方向对马尾松木材厚度(高度)方向的含水率梯度的变化无影响。

The moisture gradient along height of Pinus massoniana wood were tested and analyzed, which were treated by electric field for different intensity and work time, and were compared with the untreated wood. The results showed: (1)The intensity and work time of electric field had effect on the moisture gradient along height of the wood. (2) The moisture gradient alone height of the wood subsided with the increase of electric field intensity and work time. (3) But the direction of electric field had no effect on the moisture gradient along height of the wood. [Ch,5 fig. 26 ref.]