Thermal Decomposition of AP Catalyzed by Nano ZnO Cube and Its Application in HTPE Propellants

被引：0

作者：

Li H.-T. ^{[1
,2
]}

Xu S. ^{[1
,2
]}

Song L.-F. ^{[1
,2
]}

Wang Y. ^{[2
]}

Pang A.-M. ^{[2
]}

Liao G.-L. ^{[3
]}

机构：

[1] Science and Technology on Aerospace Chemical Power Laboratory, Xiangyang

[2] Hubei Institute of Aerospace Chemotechnology, Xiangyang

[3] School of Mechanical Science & Engineering of HUST, Wuhan

来源：

| 2021年 / 44卷 / 01期

关键词：

Ammonium perchlorate; Combustion performance; HTPE propellant; Nano ZnO cube; Physical chemistry; Thermal decomposition;

D O I：

10.14077/j.issn.1007-7812.202010002

中图分类号：

学科分类号：

摘要：

In order to improve the performance of ammonium perchlorate (AP) so as to improve the combustion performance of composite solid propellant, nano ZnO cubic catalyst (n-ZnO/cube) was synthesized by AP assisted metal organic framework (MOF) thermal decomposition method. Its morphology was characterized by XRD,FESEM,TEM, and its specific surface area and pore size distribution were analyzed. Its effect on the thermal decomposition of AP was analyzed by TG-DTA. The effects of n-ZnO/cube on the process performance, safety performance, mechanical properties and combustion performance of HTPE propellant were tested. The results show that the large specific surface area of 70.5m2/g and a large number of pore structures of n-ZnO/cube catalyst decrease the high temperature decomposition peak of AP from 413 ℃ to 279℃, increase the heat release from 584J/g to 1520J/g, and decrease the decomposition activation energy from 151.1kJ/mol to 65.3kJ/mol. The burning rate (20℃, 6.86MPa) of HTPE propellant increases from 12.01mm/s to 16.16mm/s when 2%(mass fraction) n-ZnO/cube is added into the propellant. The process performance, safety performance, mechanical properties, burning rate pressure index (0.42, 20℃, 3-16MPa) and burning rate temperature sensitivity coefficient (2.02×10-3 /℃, -55-70℃, 6.86MPa) are not affected significantly, showing that nano ZnO cubic structure has good catalytic performance on thermal decomposition of AP, and it is a potential burning modifier for HTPE propellant. © 2021, Editorial Board of Journal of Explosives & Propellants. All right reserved.

引用

页码：89 / 95

页数：6

共 29 条

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