摘要
木材作为一种多孔亲水材料,在环境湿度增加时易发生吸湿行为,产生湿胀,甚至变形等现象,影响木材的加工利用。因此,木材吸湿性研究一直都是木材科学领域探讨的重要问题之一。为了更好地明晰木材吸湿过程水分和尺寸的变化情况,学者们采用了多种多样的研究方法和手段。本文以木材吸湿机理及其影响因素为切入点,概述了木材吸湿环境调节手段,分析对比了吸湿过程中木材含水率、水分吸着状态、热量和速率的分析方法及其尺寸/应变变化的测定方式,总结了目前木材吸湿性研究存在的问题及建议,以期为科学研究和实际生产提供一定的参考。
Wood,being a hydrophilic material with porosity,is susceptible to moisture absorption,causing it to swell and deform under high ambient humidity conditions.This adversely impacts the processing and utilization of wood.The investigation on wood hygroscopicity has always been one of the significant issues in the field of wood science.To discern the alterations in moisture content and dimension during the process of wood moisture absorption,researchers have employed various research techniques and approaches.Therefore,this paper presents a summary and comparison of various methods used for regulating environmental humidity and measuring wood moisture content,moisture state,moisture adsorption rate,and moisture adsorption thermal energy.Additionally,it includes a discussion of methods used to measure dimension and strain changes in wood.Finally,a summary of the current issues and recommendations in this field presents to supply some guidances for scientific research and practical production.
作者
温佳璐
刘文静
张明辉
WEN Jialu;LIU Wenjing;ZHANG Minghui(College of Materials Science and Art Design,Inner Mongolia Agricultural University,Hohhot 010018,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2024年第18期285-293,共9页
Materials Reports
基金
内蒙古自治区自然科学基金(2021MS03046)
国家自然科学基金(31960292)。
关键词
木材
吸湿
含水率
水分状态
尺寸测定
wood
moisture absorption
moisture content
moisture state
wood dimension measurement
