Liner-barrier for ultrahigh burning rate propellants

Details Liner-barrier for ultrahigh burning rate propellants Liner-barrier for ultrahigh burning rate propellants

1977-09-06

1981-12-08

Miller, Edward A.

Ammunition and explosives

Powder form

Having burning inhibiting means

149 2, 149 192, F42B 100, C06B 4510

Patent

active

043041850

ABSTRACT:
A highly effective liner-barrier is disclosed for use with carborane-conting ultrahigh burning rate propellants. The liner-barrier includes a resinous matrix selected from an epoxy, polysulfide, and a near neutral phenolic resinous liner-barrier composition, and a leafing aluminum flake incorporated therein. When this liner-barrier is applied to the surface of a rocket motor case, or insulation when used, the leafing aluminum flake floats to a region near the surface of the resin. The liner-barrier is cured to yield a leafing aluminum flake sub-surface layer which markedly reduces the permeability of the liner-barrier by the carboranyl burning rate catalysts which results from the migration or diffusion of the carborane from the propellant. The ultrahigh burning rate propellant is compatible with and forms a secure bond to the liner-barrier. These requirements of compatibility and forming a secure bond are essential for the field of use.

REFERENCES:
patent: 3079289 (1963-02-01), George et al.
patent: 3426528 (1969-02-01), Mangum et al.
patent: 4009231 (1977-02-01), Wasserman et al.
patent: 4034675 (1977-07-01), Sayles
patent: 4034676 (1977-07-01), Daume

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