Pot Life Problem and its measure with a reduced smoke propellant production | Zendy

Tokui Harusuke | Zendy; Iwama Akira | Zendy

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Pot Life Problem and its measure with a reduced smoke propellant production

Author(s) -

Tokui Harusuke,

Iwama Akira

Publication year - 1991

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.19910160303

Subject(s) - propellant , ammonium perchlorate , materials science , zirconium , polybutadiene , rocket propellant , curing (chemistry) , composite number , combustion , specific impulse , composite material , hydroxyl terminated polybutadiene , ammonium bicarbonate , aluminium powder , chemical engineering , aluminium , metallurgy , chemistry , organic chemistry , raw material , copolymer , engineering , polymer

Typical reduced smoke type composite propellants mainly composed of hydroxyl‐terminated polybutadiene (HTPB) and ammonium perchlorate (AP) have a drawback that these propellant grains have a high response function of the burning rate to cause acoustic pressure oscillation. The addition of a small fraction (0.5% ∼ 1.2wt%) of zirconium (Zr) or zirconium oxide powders to propellant compositions has been known to be effective for suppressing such a combustion instability. It is also notified, however, Zr powder would incur the acceleration of urethance forming reaction so as to make the pot life of the HTPB/AP propellant dough shorter. This paper reports that tetracycline (TC) is available to offset such a trouble in curing process brought about by Zr powder addition.

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