含能材料及相关物的低温焓松驰研究──(Ⅰ)由DSC获得粘弹系数

INVESTIGATION ON ENTHALPIC RELAXATION OF ENERGETIC MATERIALS AND RELATED MATERIALS AT LOW TEMPERATURE(Ⅰ)THE VISCOELASTIC COEFFICIENTS OBTAINED BY DSC

用差示扫描量热仪（ＤＳＣ）技术研究了某些含能材料及相关物的低温焓松弛过程及时温等效，通过玻璃化转变温度与升温速率的关系，导出了ＷＬＦ方程粘弹系数的计算式，并计算了１０个体系的粘弹系数，实验结果表明，用ＤＳＣ技术可以测定焓松驰和ＷＬＦ方程的系数。

The enthalpic relaxation and the time temperature superposition principle of some energetic and related materials at low temperature were investigated by differential scanning calorimeter(DSC).Based on the relationship between glass transition temperature and heating rate,the equations used to calculate the viscoelastic coefficients in WLF equation were derived.The viscoelastic coefficients of ten systems were calculated,and the results indicated that the viscoelastic coefficients can be obtained by DSC.