文献类型：期刊文献

英文题名：Increased dimensional stability of Chinese fir through steam-heat treatment

作者：Cao, Yongjian[1,2] Lu, Jianxiong[1] Huang, Rongfeng[1] Jiang, Jiali[1]

第一作者：Cao, Yongjian

通信作者：Lu, JX[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Key Lab & Wood Sci & Technol State Forestry Adm, Beijing 100091, Peoples R China;[2]Univ New Brunswick, Fac Forestry & Environm Management, Wood Sci & Technol Ctr, Fredericton, NB E3C 2G6, Canada

年份：2012

卷号：70

期号：4

起止页码：441-444

外文期刊名：EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS

收录：;EI(收录号：20123715430287);Scopus(收录号：2-s2.0-84865999001);WOS:【SCI-EXPANDED(收录号:WOS:000304653300006)】；

基金：This research was funded by the National Natural Science Foundation of China (No. 30825034).

语种：英文

外文关键词：Efficiency - Heat treatment - Steam - Wood products

摘要：Chinese Fir is one of the most commonly planted tree species in China. As a fast-growing species, the main drawback is dimensional instability, which limits its applications. Steam-heat treatment is one of the effective methods to improve the dimensional stability of wood. Heartwood and sapwood of Chinese fir were treated using thermal modification with steam that was used as a heating medium and a shielding gas at temperatures ranging from 170 to 230A degrees C and length of time from 1 to 5 hours in an airtight chamber with an atmosphere comprising less than 2 per cent of oxygen. The effect of steam-heat treatment on anti-shrink efficiency and anti-swelling efficiency were examined. The results indicated that the dimensional stability of the wood was increased by 73% for heartwood and 71% for sapwood at 230A degrees C for 5 hours, respectively.