固体火箭技术2024，Vol.47Issue(3)：348-353,6.DOI:10.7673/j.issn.1006-2793.2024.03.007
AlH3在GAP/NG/BTTN中的贮存稳定性研究
Storage stability of AlH3 in GAP/NG/BTTN
王榜庆 1裴宝林 1池旭辉 1杨根 1曹蓉 1赵程远 1张峰涛 1李小娜1
作者信息
- 1. 航天化学动力技术重点实验室,襄阳 441003||湖北航天化学技术研究所,襄阳 441003
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摘要
Abstract
Aiming at the stability of aluminum hydride(AlH3)in NG/BTTN plasticized azidoglycidyl ether(GAP)high-energy propellant,the thermal stability of AlH3 in GAP/NG/BTTN at different temperatures was studied by XRD,elemental analysis and SEM.The results show that,compared with XRD,the quantitative characterization of AlH3 by elemental analysis has little fluctuation.There are induction period,acceleration period and decay period during the decomposition releasing hydrogen of AlH3 and its GAP/NG/BTTN mixture,the induction period is about 6 days at 70℃,and GAP/NG/BTTN accelerates the decomposition hydrogen re-leasing rate of AlH3,especially during the acceleration period,which shortens the time span of the accelerated decomposition period of AlH3 from 22 days to 9 days.During the induction period,NG/BTTN is the main factor affecting the thermal stability of AlH3,and GAP has no obvious effect on the thermal stability of AlH3.During the induction period,the decomposition activation energy of pure AlH3 is 197.01 kJ/mol,and that of AlH3 in the mixture of AlH3/GAP/NG/BTTN is 199.58 kJ/mol,their decomposition activation energy is basically the same.关键词
高能推进剂/含能材料/AlH3/活化能/硝酸酯Key words
high energy propellant/energetic materials/AlH3/activation energy/nitrate ester分类
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王榜庆,裴宝林,池旭辉,杨根,曹蓉,赵程远,张峰涛,李小娜..AlH3在GAP/NG/BTTN中的贮存稳定性研究[J].固体火箭技术,2024,47(3):348-353,6.
