Results
Title

HTPE 固体推进剂点火能量和燃烧特性的实验研究.

Authors

李泽旭; 苑继飞; 刘建忠; 孙志昊; 赵 昱; 杨洪涛

Abstract

The ignition energy and combustion characteristics of HTPE solid propellants were investigated by CO2 laser ignition and combustion test system. The effects of pressure, atmosphere, initial temperature (-50—70℃) and burning rate regulator on the burning rate, flame morphology, combustion temperature and minimum ignition energy of HTPE solid propellants were analyzed. The results show that HTPE solid propellant has lower flame intensity, burning rate, and combustion temperature than hydroxyl-terminated polybutadiene (HTPB) solid propellant. The increase of temperature, pressure and oxygen content can increase the combustion intensity and decrease the minimum ignition energy of HTPE solid propellant. The minimum ignition energy of the three HTPE solid propellants (HTPE_0, HTPE_Ca, HTPE_Sr) is 0.738, 1.038 and 1.862J at -50℃, respectively. The low temperature initial environment can significantly increase the minimum ignition energy. The calcium carbonate and strontium carbonate can inhibit the burning rate of HTPE solid propellant.

Subjects

SOLID propellants; HEAT of combustion; IGNITION temperature; TEST systems; CALCIUM carbonate; PROPELLANTS; FLAME

Publication

Chinese Journal of Explosives & Propellants, 2024, Vol 47, Issue 11, p1022

ISSN

1007-7812

Publication type

Academic Journal

DOI

10.14077/j.issn.1007-7812.202403026