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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (21): 2156-2160. 上一篇    下一篇

研究论文

柚皮苷的热稳定性及其热分析动力学研究

王韶旭1，林璐2，谭志诚*,3，李彦生1，李英1   

  1. (1大连交通大学环境与化学工程学院 大连 116028)
    (2哈药集团制药总厂 哈尔滨 150086)
    (3中国科学院大连化学物理研究所热化学实验室和中国离子液体实验室 大连 116023)
  • 投稿日期:2010-04-10 修回日期:2010-05-29 发布日期:2010-07-02
  • 通讯作者: 谭志诚 E-mail:tzc@dicp.ac.cn
  • 基金资助:

    聚苯胺/稀土氧化物复合材料的复合行为的热力学和热化学研究;Zr-Al-Ni 三元体系块体非晶合金的玻璃形成能力的研究

Thermal Stability and Kinetics of Thermal Decomposition of Naringin

Wang Shaoxu1 Lin Lu2 Tan Zhicheng*,3 Li Yansheng1 Li Ying1   

  1. (1 College of Environmental Science & Engineering, Dalian Jiaotong University, Dalian 116028)
    (2 The General Pharmaceutical Factory of Harbin Pharmaceutical Group, Harbin 150086)
    (3 Thermochemistry Laboratory and China Ionic Liquid Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023)
  • Received:2010-04-10 Revised:2010-05-29 Published:2010-07-02

PDF

1359

被引次数

23

用TG-DTG/DTA方法研究了柚皮苷的热降解过程及热分析动力学. 热重分析结果表明该物质的失重过程分两步进行. 第一步为结晶水脱出, 其温度范围为343～545 K, 第二步为其分子骨架大规模降解, 其温度范围在545～857 K. 差热分析结果表明, 该物质的熔化温度为439.2 K. 使用Friedman和Ozawa-Flynn-Wall两种方法分别计算出该物质降解过程的活化能. 采用多步线性回归方法, 并参考常用的15种热解机理函数, 确定了柚皮苷热解过程最佳动力学模型为Fn-F2-F1.

关键词: 柚皮苷, 热解过程, 热分析动力学, TG-DTG/DTA

Thermal decomposition of naringin was studied by TG-DTG/ DTA. The TG-DTG curve showed the process of mass loss of the substance proceeded in two steps. The first step could be attributed to the expulsion of water of crystallization in the temperature range of 343～545 Ｋ. The second step was corresponding to the large scale degradation of naringin in the temperature range 545～857 K. The activation energy E of the thermal degradation process was obtained by Friedman method and Ozawa-Flynn-Wall method. According to 15 mechanism functions, the possible kinetic model was estimated to be Fn-F2-F1 through the multiple linear regression method.

Key words: naringin, process of thermal decomposition, kinetics of thermal analysis, TG-DTG/DTA