Dimethylglyoxime magnesium and preparation method thereof

Abstract

The invention discloses a dimethylglyoxime magnesium compound with a structural formula represented in a formula (I). The dimethylglyoxime magnesium compound can be decomposed to produce uniformly distributed nascent magnesium oxide as a main catalytic active component when used as a combustion catalyst and can produce a carbon substance as an assisted catalytic component simultaneously, thereby having excellent catalytic effect on combustion of a slow-combustion solid propellant with a low combustion temperature and capable of greatly reducing combustion speed and pressure intensity indexes under the condition that the combustion speed of the propellant is not increased.

Description

technical field [0001] The invention relates to a magnesium dimethylglyoxime compound, which can be used as a combustion catalyst for solid propellants. technical background [0002] With the development of cutting-edge technology, the increase of the flight distance of missiles and rockets and the improvement of control precision, higher requirements are put forward for solid gas generators, which require light weight and longer working hours. This requires that the gas generator not only produces The gas volume is large, the gas cleanliness is high, and the burning rate and burning temperature are lower, but the performance of the propellant is related. Large, incomplete combustion and increased residue. [0003] In terms of double-based propellants with low combustion temperature and low burning rate, the decomposition rate is usually delayed by adding a catalyst with a higher melting point, adding a decomposition and endothermic catalyst to reduce the combustion tempera...

AI Technical Summary

Problems solved by technology

However, there are some problems in the combustion catalysts commonly used in double-base gas generating agents, such as Al 2 o 3 The melting point is low, and it is easy to condense with other catalysts to form large particles during combustion, which will stick to the gas pipe or turbofan and cause failure; the compound containing Zr and Bi is too hard, and it is easy to damage the turbofan

The double base propellant containing magnesium oxide not only has the advantages of low combustion flame temperature, low solid particle content in the gas, no corrosive products such as chlorine or chlorine compounds, but also is insensitive to temperature and impact, and can be used in a wide temperature range It has good mechanical properties, and the addition of MgO can also inhibit the combustion of acoustic vibration instability, but the magnesium oxide used as a catalyst is unstable and easy to absorb moisture, and its performance is prone to change and failure during storage, which seriously limits the Propellant-like service life

In addition, the propellant formula contains water-soluble substances, which is not conducive to the preparation of solvent-free stretching process

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