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Correlation between Gas Evolution under Vacuum or Pressure and Stability of Single‐Base Propellants
Author(s) -
SyryczyńSki Piotr,
Szmajda Jerzy
Publication year - 1990
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.19900150207
Subject(s) - propellant , stabilizer (aeronautics) , evaporation , base (topology) , decomposition , materials science , chemistry , analytical chemistry (journal) , thermodynamics , chromatography , organic chemistry , aerospace engineering , physics , mathematics , mathematical analysis , engineering
The processes of the gas liberation during heating single‐base propellants in vacuum or underatmospheric pressure has been studied. The results for several samples with various size of grains, water content and methods of production were compared. The results of the tests under vacuum cannot be the strict and simple measure of the stability of propellants. It is not clear whether the increase of pressure is due to the breakdown of RO‐NO 2 bonds or is noly due to the evaporation of the derivatives of primary stabilizer. The amount of gas evolved depends on the size of grains, type of stabilizer, various additives etc. There are no strict boundaries between stable and unstable propellants when their decomposition rate under atmospheric pressure is measured. This method of determining the stability of single‐base propellants is useless for old samples made by unknown technology.