【作者】 罗法三； 杨杨； 邢东； 许民；

【Author】 Fasan Luo Yang Yang Dong Xing Min Xu (Northeast Forestry University,Harbin 150040)

【机构】 东北林业大学； 东北林业大学材料科学与工程学院；

【摘要】 对落叶松及杨木在氧气含量小于2%的环境中进行热处理,处理温度为150℃、160℃、170℃、180℃、190℃、200℃、210℃,处理时间为4h。测试热处理后落叶松及杨木的吸水性、色度指数以及接触角的变化。结果表明:热处理温度是影响木材吸水率的显著性因素。从150℃到210℃落叶松及杨木的吸水率分别降低了12.52%和29.45%。随着热处理温度的升高,色差值呈现比较规律的升高过程。此外,热处理会导致木材表面接触角增加和润湿性降低。更多还原

【Abstract】 This paper use heat-treated of Larix spp.and Populus ussuriensis from modified test,processing temperature of 150℃,160℃,170℃,180℃,190℃,2001:, 210X,the processing time for 4 hours,with oxygen content is less than 2%.The water absorption,chromaticity index and contact angle were tested after the treatment. The results showed:temperature was one of the most significant factor of water absorption.The water absorption rate of Larix spp.decreased by 12.52%,that of Populus ussuriensis is 29.45%when the temperature rose from 150℃to 210℃. Along with the increase of temperature,the chromatic aberration emerged a regular increase.Furthermore,the contact angle increased and the wettability declined after heat treatment.更多还原