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Thermal decomposition characteristics of lithium perchlorate-based high-temperature insensitive electrically controlled solid propellant.

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Title:	Thermal decomposition characteristics of lithium perchlorate-based high-temperature insensitive electrically controlled solid propellant.
Authors:	Zhang, Yiming¹ (AUTHOR), Fu, Xiaolong¹ (AUTHOR) fuxiaolong204@163.com, Xia, Xu¹ (AUTHOR), Chen, Qihang¹ (AUTHOR), Liu, Hanwen¹ (AUTHOR), Zhen, Shaocong¹ (AUTHOR), Cui, Lianpeng¹ (AUTHOR), Chen, Suhang¹ (AUTHOR), Wang, Jiangning¹ (AUTHOR)
Source:	Thermochimica Acta. Apr2026, Vol. 758, pN.PAG-N.PAG. 1p.
Subjects:	Lithium perchlorate, Solid propellants, Thermolysis, Oxidizing agents, Flame stability, Cyclodextrins, Scientific method
Abstract:	• A novel ECSP based on LiClO 4 /NaNO 3 oxidizer is characterized. • ECSP shows stable 280 V on/off switching and rapid extinction. • TG-DSC-FTIR-MS identifies the ECSP thermal decomposition paths. • β-Cyclodextrin reduces ECSP decomposition temperature without heat buildup. • The ECSP high-temperature desensitization mechanism is proposed. An electrically controlled solid propellant (ECSP) using lithium perchlorate/sodium nitrate as the oxidizer was prepared. The ECSP was verified to be capable of continuous and stable combustion under a 280 V voltage using the established electrically-controlled combustion test system, while it extinguished rapidly after power cutoff. The thermal decomposition properties of the ECSP and its raw materials were analyzed using TG-DSC-FTIR-MS coupled techniques. Comparative analysis of the combustion residues after flame burning and electrically controlled ignition was performed via separate FTIR tests. The results revealed that β-cyclodextrin significantly lowers the thermal decomposition temperature of the propellant system without leading to heat accumulation. Based on these findings, the formation mechanism of the high-temperature desensitization characteristics of this ECSP was further elucidated. [Display omitted] [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

Description
Abstract:	• A novel ECSP based on LiClO 4 /NaNO 3 oxidizer is characterized. • ECSP shows stable 280 V on/off switching and rapid extinction. • TG-DSC-FTIR-MS identifies the ECSP thermal decomposition paths. • β-Cyclodextrin reduces ECSP decomposition temperature without heat buildup. • The ECSP high-temperature desensitization mechanism is proposed. An electrically controlled solid propellant (ECSP) using lithium perchlorate/sodium nitrate as the oxidizer was prepared. The ECSP was verified to be capable of continuous and stable combustion under a 280 V voltage using the established electrically-controlled combustion test system, while it extinguished rapidly after power cutoff. The thermal decomposition properties of the ECSP and its raw materials were analyzed using TG-DSC-FTIR-MS coupled techniques. Comparative analysis of the combustion residues after flame burning and electrically controlled ignition was performed via separate FTIR tests. The results revealed that β-cyclodextrin significantly lowers the thermal decomposition temperature of the propellant system without leading to heat accumulation. Based on these findings, the formation mechanism of the high-temperature desensitization characteristics of this ECSP was further elucidated. [Display omitted] [ABSTRACT FROM AUTHOR]
ISSN:	00406031
DOI:	10.1016/j.tca.2026.180238