[1]邓启平,李大纲,张金萍.FTIR法研究出土木材化学结构及化学成分的变化[J].西北林学院学报,2008,23(02):149.
 DENG Qiping,LI Dagang,ZHANG Jinping.FTIR Analysis on Changes of Chemical Structure and Compostions of Waterlogged Archaeological Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2008,23(02):149.
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FTIR法研究出土木材化学结构及化学成分的变化()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第23卷
期数:
2008年02期
页码:
149
栏目:
出版日期:
2008-03-05

文章信息/Info

Title:
FTIR Analysis on Changes of Chemical Structure and Compostions of Waterlogged Archaeological Wood
作者:
邓启平 12 李大纲 1 张金萍 3
1.南京林业大学,江苏 南京,210037;2.西南林学院,云南 昆明,650224;3.南京博 物院,江苏 南京,210016
Author(s):
DENG Qiˉping 12 LI Daˉgang 1 ZHANG Jinˉping 3
1. Nanjing Forestry University,Nanjing,Jiangsu 210037, China;2.South west Forestry College,Kunming ,Yunna 650224 ,China;3.Nanjing Museum,Nanjing,Jiangsu 210016,China
关键词:
傅立叶变换红外光谱出土木材化学结构化学成分
Keywords:
FTIR waterlogged archaeological woodchemical structurechemi cal components
分类号:
S781.41
文献标志码:
A
摘要:
为了使出土木材化学结构和化学成分不受破坏降解,该研究选用傅立叶变换红外 光谱法 (FTIR)对出土木材的化学结构和化学成分进行了分析。结果表明,出土木材在长期的 地下水浸环 境下降解严重,部分纤维素大分子链因降解而断裂形成了低分子链,同时纤维素结晶结 构也遭到了 破坏,使出土木材抗拉、抗弯及冲击韧性等强度大大降低;半纤维素几乎全部被降解而流 失掉;木质 素降解很少,但部分醚键连接的空间网状结构遭到了破坏,苯环结构单元中部分侧链中 含有C=O 共轭羰基的结构也发生了改变。
Abstract:
A nondestructive analysis was carried out on the chemical s tructure and components of waterˉ logged archaeological wood(paulownia spp.)by fourier transform infrar ed spectroscopy(FTIR). The reˉ sults showed that waterlogged archaeological wood degraded heavily in water and underground for a long period of time.Some cellulose degraded to form short cellulose mol ecular rings,and the crystal structure of the cellulose was also destroyed,so the tensile strength,string s trength and fragile ability of waterlogged archaeological wood decreased drastically.Almost all hemicellulose m olecules underwent degradation.Ligˉ nin degraded a little, but some spatial network structures of ligni n formed by ether bonds destroyed and conjugated carbonyl groups in side rings of aromatic units also c hanged.

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 DENG Qiping,LI Dagang,ZHANG Jinping.FTIR Analysis on Changes of Chemical Structure and Compostions of Waterlogged Archaeological Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2008,23(02):149.

备注/Memo

备注/Memo:
收稿日期:2007ˉ05ˉ23 修回日期:2007ˉ06ˉ19 基金项目:东北林业大学材料科学学院 重点实验2004年度开放课题“木质文物劣化机理及新型防腐脱水加固剂的研究”(04ˉ01) 。 作者简介:邓启平(1970ˉ),男,四川武胜人,在读博士,从事木材科学与技术的教学 与研究工作。
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