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Determination of Chemical and Mechanical Properties of Double Base Propellants during Aging
Author(s) -
Volk F.,
Bohn M. A.,
Wunsch G.
Publication year - 1987
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.19870120305
Subject(s) - propellant , nitrocellulose , internal ballistics , stabilizer (aeronautics) , materials science , rocket (weapon) , accelerated aging , degradation (telecommunications) , ultimate tensile strength , composite material , base (topology) , combustion , kinetic energy , thermal stability , chemical engineering , aerospace engineering , chemistry , engineering , organic chemistry , telecommunications , mathematical analysis , biochemistry , physics , mathematics , quantum mechanics , membrane
Thermal and mechanical stability of rocket and gun propellants are very important properties with regard to safety during storage and handling and to the interior ballistics behavior during combustion. However, our knowledge of how these properties are connected is poor. In order to better understand the aging behavior of double base propellants, the following properties were measured between 60 °C and 90 °C: the depletion of the stabilizers, the degradation of the molecular weights of nitrocellulose and the decrease of the mechanical properties (tensile strength and strain at break). The evaluation of the kinetic parameters of the different aging processes mentioned has shown that stabilizer depletion, molecular weight degradation of nitrocellulose and decrease of mechanical properties must be closely connected.

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