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Liner-barrier for ultrahigh burning rate propellants
Liner-barrier for ultrahigh burning rate propellants
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机译:超高燃速推进剂的衬里屏障
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摘要
A highly effective liner-barrier is disclosed for use with carborane- containing 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.
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