Simple Method for Derivative Differential Thermal Analysis
Simple Method for Derivative Differential Thermal Analysis
复制标题
微分热分析的简单方法
DOI：
10.1021/ac50164a055
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发表时间：
1959
期刊：
影响因子：
--
通讯作者：
David. Edeiman
中科院分区：
文献类型：
--
作者：
E. S. Freeman;David. Edeiman
导数差热分析 (DDTA) 作为差热分析 (DTA) 的补充而受到关注(2)。带峰的温度以及 DTA 曲线中经常被忽视的细节（例如 DDTA 曲线中出现的峰的拐点）使该技术可用于物质表征以及反应动力学研究 a, 8, 7)。可以通过电子方式进行微分热分析 (5)。所描述的方法涉及使用重复样品作为参考材料并在两个样品之间的施加温度中保持恒定的温差。使用传统的DTA装置(6)。该技术的原理允许自动记录 DDTA 曲线，并且是用 De-Keyser 差示热天平（由德国哥廷根的 Sartorius, A. G. Werle 制造）获得的衍生热重曲线的基础，其中使用两个炉子和重复的样品，一个系统的温度滞后于另一个系统。
Derivative differential thermal analysis (DDTA) is of interest as a complement to differential thermal analysis (DTA)(2). The temperatures of peaks of bands as well as details often overlooked in DTA curves, such as in-flections which appear as peaks in DDTA curves, make this technique use-ful for characterization of substances as well as for studying reaction kinetics a, 8, 7).Derivative differential thermal analysis may be carried out electronically (5). The method described involves using a duplicate sample as the reference material and maintaining a constant temperature differential in the applied temperatures between both samples. Conventional DTA apparatus (6) is used. The principle of this technique permits automatic recording of the DDTA curve and is the basis for the derivative thermogravimetric curves obtained with a De-Keyser differential thermobalance(manufactured by Sartorius, A. G. Werle, Gottingen, Ger-many), where two furnaces and dupli-cate samples are employed, the temperature of one system lagging the other.