文献类型：期刊文献

英文题名：Studies on pre-treatment by compression for wood impregnation I: effects of compression ratio, compression direction, compression speed and compression-unloading place on the liquid impregnation of wood

作者：Zhao, Youke[1,2] Wang, Zhihui[2] Iida, Ikuho[3] Guo, Juan[2]

第一作者：赵有科

通信作者：Guo, J[1]|[a0005c616682e38d4137f]郭娟;

机构：[1]Chinese Acad Forestry, Res Inst Forestry New Technol, Dong Xiao Fu 1, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Dong Xiao Fu 1, Beijing 100091, Peoples R China;[3]Kyoto Prefectural Univ, Lab Wood Technol, Sakyo Ku, Nakaragi Cho, Kyoto 6068522, Japan

年份：2018

卷号：64

期号：5

起止页码：551-556

外文期刊名：JOURNAL OF WOOD SCIENCE

收录：;EI(收录号：20182305285778);Scopus(收录号：2-s2.0-85048013071);WOS:【SCI-EXPANDED(收录号:WOS:000446490500009)】；

基金：This work was supported by the Fundamental Research Funds of Research Institute of Forest New Technology, CAF (Grant no. CAFYBB2017SY037).

语种：英文

外文关键词：Pre-treatment; Compression; Wood impregnation; Penetration

摘要：To improve the impregnation of wood, the pre-treatment by compression was systematically studied in terms of effects of compression ratio, compression direction, compression speed and compression-unloading place on the liquid impregnation in poplar and Chinese fir. The results showed: the impregnation increased 0.0065 or 0.0074g/cm(3) for every 1% increase of compression ratio when the compression ratio was lower or equal to 50 and 40% for poplar and Chinese fir, respectively; it continued to increase afterwards while the variation was quite big. There existed a significant difference of the impregnation of wood compressed at different directions in Chinese fir, but not in poplar. There existed a significant difference of the impregnation of wood compressed at different speed in both species. The impregnation of wood is likely to be in favor of radial compression in terms of the amount of impregnation. 5 and 10mm/min were recommended as a compromise of impregnation and pre-treatment efficiency. The impregnation of wood that the compression unloaded in water was about 18.2 (poplar) and 9.2% (Chinese fir) higher in amount and was much quicker in speed than that the compression unloaded in air, and the difference between them was significant, suggesting that compression unloaded in water is significant to improve the impregnation.