构造煤结构成分应力效应的傅里叶变换红外光谱研究  

FTIR Spectroscopic Study on the Stress Effect of Compositions of Macromolecular Structure in Tectonically Deformed Coals

作　　者：琚宜文[1,2] 姜波[3] 侯泉林[1] 王桂梁[3] 

机构地区：[1]中国科学院研究生院地球科学学院 [2]中国矿业大学资源与地球科学学院,江苏徐州221008 [3]中国矿业大学资源与地球科学学院

出　　处：《光谱学与光谱分析》2005年第8期1216-1220,共5页Spectroscopy and Spectral Analysis

基　　金：国家重点基础研究发展规划"973"项目(2002CB211704);国家自然科学基金(40172058);中国博士后科学基金(200403508);中国科学院王宽诚博士后工作奖励基金项目资助

摘　　要：应用傅里叶变换红外光谱法(FTIR)对不同类型构造煤结构成分的应力效应进行了分析。结果表明,在各类构造煤中,芳香结构、脂肪结构以及含氧官能团的结构成分吸收频率几乎一致,但吸收峰的强度却不相同,这正是在构造应力作用下构造煤变形程度及变形机制不同所引起的。在低、中和高煤级变质变形环境形成的不同类型构造煤中,随着构造变形的增强,富氢程度降低,富氧程度也越来越低,而缩合程度增高,但不同类型构造煤结构成分的含量变化又有区别。该法应用于构造煤结构成分应力效应的研究,取得了较满意的效果。Fourier transform infrared spectroscopy （FTIR） was applied to the study of the stress effect of compositions of macromolecular structure in tectonically deformed coals. The results showed that in different kinds of tectonically deformed coals, the absorption band of aromatic structure, aliphatic structure and oxygen functional groups nearly consistent in the peak wave number, but the intensity of the peak is different which is justly influenced by different deformation degree and deformation mechanism of tectonically deformed coals under tectonic stress. In the metamorphic and deformed environments of the low, middle and high coal rank, for tectonically deformed coals, with the increasing stress, hydrogen enriched degree and oxygen-enriched degree decrease, while the degree of ring condensation increases. But there are differences in the change of compositions contents of macromolecular structure. This might indicate that the FTIR could be used in the stress effect of compositions of macromolecular structure in tectonically deformed coals.

关 键 词：构造煤 变形机制 大分子结构 化学成分 红外光谱 

分 类 号：P618.1[天文地球—矿床学]