Citrazinic acid copper zirconium bimetallic salt as well as preparation method and application thereof

Abstract

The invention discloses citrazinic acid copper zirconium bimetallic salt shown in the structural formula (I). The citrazinic acid copper zirconium bimetallic salt has the advantages as follows: the synthetic process is simple; when used as a combustion catalyst, the citrazinic acid copper zirconium bimetallic salt can be decomposed to generate uniform and new ecological copper and oxide thereof, which are used as main catalytic active components, and high-melting-point zirconium dioxide generated during decomposition can be used as a catalyst promoter, so that the catalytic effect is improved further.

Description

technical field [0001] The invention relates to a copper-zirconium citrazine bimetallic salt and its preparation method and application. The bimetallic salt can be used as a dual-function ballistic improver of a solid propellant, that is, a combustion catalyst and a combustion stabilizer (also known as an unstable combustion inhibitor agent). technical background [0002] In terms of improving the combustion performance of double-base propellants or modified double-base propellant formulations, the current common method is to adjust the burning rate and pressure index of the propellant by adding some metal salts as combustion catalysts. 1%-5%. [0003] Lead compounds are the most important catalysts for the practical application of double-base propellants today, but lead compounds are highly toxic, and the lead oxide produced by combustion and decomposition is white or light blue smoke in the engine exhaust, which is not conducive to the guidance of missiles And stealth, f...

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Problems solved by technology

[0003] Lead compounds are the most important catalysts for the practical application of double-base propellants today, but lead compounds are highly toxic, and the lead oxide produced by combustion and decomposition is white or light blue smoke in the engine exhaust, which is not conducive to the guidance of missiles and stealth, for which researchers have long carried out research on non-lead catalysts

[0004] In addition, the most widely used unstable combustion inhibitors are aluminum powder and Al 2 o 3 Although the addition of aluminum powder solves the problems of low propellant energy and high-frequency oscillation and unstable combustion, aluminum powder participates in the combustion reaction when the propellant burns, which adversely affects the ballistic performance of the engine. The tail of the tube produces a very thick plume, which is inconsistent with the low signature of the propellant required by modern weapons

And Al 2 o 3 Due to its low melting point, it is easy to condense with catalysts such as PbO and CuO to form large particles during combustion, which not only affects the catalytic efficiency of the catalyst, but also affects the inhibition efficiency of unstable combustion.

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