波谱学杂志Issue(4)：661-669,9.DOI:10.11938/cjmr20150411
人造板吸水过程的TD-NMR动态研究
Water Absorption in Wood-Based Panel Observed by Dynamic Time-Domain Nuclear Magnetic Resonance Spectroscopy
摘要
Abstract
Time-domain nuclear magnetic resonance (TD-NMR) technology may provide a new method to study water absorption in wood-based panels. We measured changes of free induction decay (FID) signal of water in plywood, particle board and medium density fiberboard after a 24-hour soaking process, and the results were correlated to water contents calculated with the traditional weighing method. The amount of water absorption was plywood > particleboard > medium density fiberboard. The state of water in the panels was analyzed by spin-spin relaxation time (T2) measurements. The result suggested that NMR is an effective tool to study the relationship between wood-based panels and water.关键词
时域核磁共振(TD-NMR)/吸水率/自由感应衰减/自旋-自旋弛豫时间/人造板Key words
time-domain nuclear magnetic resonance/water absorption/free induction decay/spin-spin relaxation time/wood-based panel分类
数理科学引用本文复制引用
周云洁,张明辉,李新宇,邵朱伟..人造板吸水过程的TD-NMR动态研究[J].波谱学杂志,2015,(4):661-669,9.基金项目
国家自然科学基金资助项目(30800866,31160141)． （30800866,31160141）
