Creep of Chinese Fir Wood Treated by Different Reagents

编号 zgly0000362559

文献类型 期刊论文

文献题名 Creep of Chinese Fir Wood Treated by Different Reagents

学科分类 220.99;林学其他学科

作者 XueFeng-lian  ZhaoGuang-jie  LuWen-hua 

作者单位 CollegeofMaterialSciencesandTechnology  BeijingForestryUniversity  Beijing100083  ER.China 

母体文献 Forestry Studies in China;中国林学: 英文版 

年卷期 2005,7(1)

页码 40-45

年份 2005 

分类号 S791.27  S781.23 

关键词 杉木材  塑性变形  药剂处理  二甲基亚砜  二乙胺  二硫化物 

文摘内容 In order to investigate the effect of different reagents on changes of the crystalline region and amorphous region (Matrix) in wood cell walls, the creep behavior of Chinese fir (Cunninghamia lanceolata) wood treated with dimethyl sulfoxide(DMSO) and diethyl amine, sulfur dioxide and dimethyl sulfoxide mixture (1)EA-SO2-DMSO), and the untreated wood at oven-dried, air-dry and water-saturated states during adsorption and desorption processes were all examined in air or in water. The measurements were carded out at ambient temperature and atmospheric pressure. The load is constant with 62 g or 0.607 6 N. The results obtained were as follows: 1) The instantaneous compliance J0 and the creep compliance J of specimens decrystallized with DEA-SO2-DMSO solution were bigger than those of DMSO swollen wood, and the latter was still much bigger than those of untreated wood. 2) For untreated wood, J0 and J increased with equilibrium moisture content (EMC) of wood, but there was not apparent correlation between wood EMC and the relative compliance. 3) Specimens treated with DMSO and DEA-SO2-DMSO mixture were recrystallized after immersion in water, and the degree ofrecrystallization of the former was larger. 4) For oven-dried specimens, the creep compliances in water were bigger than those in air. But for fiber-saturated and water-saturated specimens they were nearly equivalent to each other。