Characterization of stable and unstable states of moisture in wood during sorption by low-field NMR

吸附 水分 解吸 含水量 平衡含水量 化学 木材干燥 放松(心理学) 材料科学 复合材料 有机化学 地质学 吸附 岩土工程 心理学 社会心理学
作者
Fengze Sun,Kaiwen Chen,Yujing Tan,Hui Peng,Tianyi Zhan,Liping Cai,Jianxiong Lyu
出处
期刊:Industrial Crops and Products [Elsevier BV]
卷期号:210: 118109-118109 被引量:7
标识
DOI:10.1016/j.indcrop.2024.118109
摘要

Wood is a hygroscopic material that often undergoes dynamic moisture exchange with surroundings. Exploring the moisture state during moisture exchanges is crucial for understanding wood-moisture and bamboo-moisture relations. This study utilized low-field NMR (LF NMR) to analyze the T2 relaxation behavior of wood, rattan, and bamboo during sorption processes. We focused on characterizing the variation in T2 relaxation peak time in both unstable and stable moisture states. The T2 peak time exhibited clear moisture content and species dependences. Notably, when moisture content was consistent, the T2 peak time of wood in stable moisture state was shorter than that in unstable state, indicating that left movement of T2 spectrum occurred. At high moisture contents, the degree of left movement was more significant. Furthermore, The T2 peak time was associated with sorption history, i.e., the T2 peak time of the wood stabilized through adsorption was less than that stabilized through desorption. Based on the correlation analysis after normalization, the T2 peak area and peak height were significantly correlated with the cell wall ratio of wood. The degree of the left movement was primarily influenced by the effective adsorption area of the wood. The findings in this work effectively characterized the stable and unstable states of moisture during sorption, providing valuable insights into the wood-moisture relationship in the wood, clarifying the moisture sorption kinetics.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Dragon完成签到,获得积分10
刚刚
lu发布了新的文献求助10
刚刚
胖丁完成签到,获得积分10
刚刚
活泼甜瓜发布了新的文献求助10
刚刚
zjt18完成签到,获得积分10
刚刚
yuiop完成签到,获得积分10
刚刚
舒适太阳完成签到,获得积分10
1秒前
刘宇发布了新的文献求助10
1秒前
weiyongswust完成签到,获得积分10
1秒前
zxcharm完成签到,获得积分10
1秒前
迟迟完成签到 ,获得积分10
2秒前
李健应助熬夜的桃子采纳,获得10
2秒前
3秒前
yyyyyyy完成签到,获得积分10
3秒前
孔刚完成签到 ,获得积分10
3秒前
4秒前
上官若男应助失眠的晓露采纳,获得10
4秒前
徐州檀完成签到,获得积分10
4秒前
5秒前
杨道之发布了新的文献求助10
5秒前
JEWEL发布了新的文献求助10
5秒前
良猫发布了新的文献求助10
5秒前
内向南风完成签到 ,获得积分10
5秒前
酷波er应助踏月偷心采纳,获得10
6秒前
koly完成签到 ,获得积分10
6秒前
qxxxxx完成签到,获得积分10
6秒前
7秒前
玉玉发布了新的文献求助10
7秒前
eterny完成签到,获得积分10
7秒前
yyyyyyy发布了新的文献求助10
7秒前
7秒前
8秒前
XIAO完成签到,获得积分10
9秒前
万能图书馆应助在途中采纳,获得10
10秒前
个性的傲安完成签到,获得积分10
10秒前
UniTTEC9560完成签到,获得积分10
10秒前
11秒前
无语的沛春完成签到,获得积分10
11秒前
shinble完成签到 ,获得积分10
12秒前
杨大大完成签到 ,获得积分10
12秒前
高分求助中
Nickel, Cobalt and Palladium Catalysed Infarction with Ventricular following rich structural diversity 1000
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
Immigrant Incorporation in East Asian Democracies 600
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3968608
求助须知:如何正确求助?哪些是违规求助? 3513486
关于积分的说明 11168243
捐赠科研通 3248926
什么是DOI,文献DOI怎么找? 1794540
邀请新用户注册赠送积分活动 875188
科研通“疑难数据库(出版商)”最低求助积分说明 804676