On the glass transition temperature of TNT

被引：0

作者：

Denton, Aric A. ^{[1
]}

Koh, Yung P. ^{[2
]}

Simon, Sindee L. ^{[2
]}

Mckenna, Gregory B. ^{[1
,2
]}

机构：

[1] Texas Tech Univ, Dept Chem Engn, Lubbock, TX 79409 USA

[2] North Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA

来源：

THERMOCHIMICA ACTA | 2024年 / 736卷

关键词：

Trinitrotoluene; TNT; Glass transition; Flash DSC; Differential scanning calorimetry; ENTHALPY RECOVERY; DEPENDENCE; VISCOSITY; FRAGILITY; LIQUIDS;

D O I：

10.1016/j.tca.2024.179733

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In prior work (N. Shamim, Y. P. Koh, S. L. Simon and G. B. McKenna, "The glass transition of trinitrotoluene (TNT) by Flash DSC," Thermochimica Acta, 620 , 36 - 39 (2015)) results for the glass transition temperature T g of TNT based on measurements using a rapid chip calorimeter were reported. In that work a silver paste was used to contain the liquid TNT on the chip sensor. In the present work we show that there was an interaction between the paste and the TNT that cause the reported T g to be approximately 10 degrees C higher than what we find for the material when placed directly on the chip calorimeter sensor. The reasons for the differences in T g values and similarities in the glassy fragility index m from the different sample preparations are presented and discussed.

引用

页数：6

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