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首页> 外文期刊>Journal of thermal analysis and calorimetry >Effect of varied proportion of GAP-ETPE/NC as binder on thermal decomposition behaviors, stability and mechanical properties of nitramine propellants
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Effect of varied proportion of GAP-ETPE/NC as binder on thermal decomposition behaviors, stability and mechanical properties of nitramine propellants

机译：间隙-ETPE / NC作为粘合剂对硝基推进剂的热分解行为的稳定性和力学性能的影响

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摘要

To improve the thermal performance and mechanical properties of nitramine propellant, varied proportions of GAP-ETPE/NC were applied as binders. The thermal behavior of propellants was investigated by using differential scanning calorimetry (DSC), the thermal stability of the propellants was studied by methyl violet experiment and vacuum stability test, and the mechanical properties were also examined. It was found that the DSC curve of GAP-ETPE shows a single exothermic peak at around 250 A degrees C, and TG-DTG curves of GAP-ETPE exhibit two major steps of mass loss. GAP-ETPE has a good compatibility with nitrocellulose, and there is no interaction between GAP-ETPE and RDX in solid phrase. When increasing the proportion of GAP-ETPE content in the binder system, the decomposition peak of nitrocellulose disappears gradually and the peak temperature of main decomposition increases. Meanwhile, activation energy and frequency factor calculated by Kissinger and FWO methods using non-isothermal thermoanalytical data all increase slightly. And the thermal stability of propellant gets improved greatly when GAP-ETPE is introduced into the binder system. When the proportion of GAP-ETPE/NC is 1:1 and 1:2 in the binder system, the mechanical properties of nitramine propellant are relatively excellent.
机译：为了提高硝基推进剂的热性能和机械性能，将变化的GAP-ETPE / NC作为粘合剂施用。通过使用差示扫描量热法（DSC）研究推进剂的热行为，通过甲基紫实验和真空稳定性试验研究推进剂的热稳定性，并检查机械性能。发现GAP-ETPE的DSC曲线显示出约250℃的单个放热峰，间隙-ETPE的TG-DTG曲线表现出两种主要损失步骤。 GAP-ETPE与硝酸纤维素具有良好的相容性，并且在固体短语中没有间隙-ETPE和RDX之间没有相互作用。当增加粘合剂系统中的GAP-ETPE含量的比例时，硝酸纤维素的分解峰逐渐消失，主要分解的峰值温度增加。同时，使用非等温热分析数据的基辛格和FWO方法计算的激活能量和频率系数略微增加。当将间隙-ETPE引入粘合剂系统时，推进剂的热稳定性得到大大提高。当GAP-ETPE / NC的比例为1：1和1：2时，硝胺推进剂的机械性能相对优异。

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