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Catalytic Action of Submicrometer Spherical Ta/Ph‐Fe on Combustion of AP/HTPB Propellant
Author(s) -
Song Naimeng,
Liu Jianchao,
Zhang Guoying,
Yan Zhenzhan,
Gao Hongxu,
Yang Li
Publication year - 2018
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201700297
Subject(s) - scanning electron microscope , combustion , propellant , materials science , differential scanning calorimetry , thermal decomposition , decomposition , particle size , exothermic reaction , catalysis , analytical chemistry (journal) , particle (ecology) , chemical engineering , chemistry , composite material , thermodynamics , chromatography , organic chemistry , physics , oceanography , engineering , geology
This paper describes the preparation of two combustion catalysts Tannin‐Fe (Ta−Fe) and Phloroglucinol‐Fe (Ph−Fe) by spray drying. The particle size and morphology of the particles are observed by scanning electron microscopy (SEM). The results of SEM image show that the particles are regular spherical and very good dispersion. The diameter of most spherical particles is about 1 μm. The effects of Ta−Fe and Ph−Fe on the thermal decomposition of RDX and AP were tested by differential scanning calorimeter (DSC). DSC dates show that Ta−Fe and Ph−Fe can advance the high temperature exothermic peak of AP 18.0 °C and 16.1 °C, respectively. The burning rates illustrates that both Ta−Fe and Ph−Fe can significantly increase the combustion rate of HTPB propellants. The formulation with 2 mass% Ta−Fe shows an average 21.31 % increase in burning rate and has a low value of the exponent n=0.48. The formulation with 2 mass%Ph−Fe has a burning rate 20 to 60 % larger than that of the initial AP/HTPB/Al formulation, and has a lowest exponent n=0.45.