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Electric-controllable combustion solid propellant based on perchlorate and preparation method thereof

A solid propellant and perchlorate technology, which is applied in the direction of offensive equipment, compressed gas generation, inorganic oxyhalide salt explosive composition, etc., can solve the problems of harsh preparation process and storage conditions, poor precision and adjustability of thrust, and limitations Problems such as propellant high temperature resistance, to achieve good chemical stability and thermal stability, wide range of storage conditions, and low price

Active Publication Date: 2017-06-30
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the research and development of electronically controlled solid propellants, the electronically controlled solid propellants prepared with ammonium nitrate (AN) as the oxidant have the disadvantage that they cannot be extinguished immediately after power failure, resulting in poor thrust adjustment; The electronically controlled solid propellant prepared for the oxidant has been well developed, and has the advantages of fast response and high adjustable thrust. However, due to the strong hygroscopicity of HAN itself, the solid propellant using it as the oxidant absorbs moisture. In addition, HAN will decompose at about 100°C, which limits the high temperature resistance of the propellant, and on the other hand, the propellant cannot be burned after the power is turned off due to its own thermal decomposition. It is completely extinguished, and it is necessary to add specific additives to improve the high temperature resistance of the propellant. Therefore, the electronically controlled solid propellant with HAN as the oxidant has high technical difficulty, and the preparation process and storage conditions are relatively harsh. certain restrictions

Method used

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  • Electric-controllable combustion solid propellant based on perchlorate and preparation method thereof
  • Electric-controllable combustion solid propellant based on perchlorate and preparation method thereof
  • Electric-controllable combustion solid propellant based on perchlorate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] An electrically controllable combustion solid propellant based on perchlorate and a preparation method thereof, is characterized in that, comprising raw materials and parts by weight thereof as shown in Table 1:

[0040] Table 1

[0041] barium perchlorate 73 copies polyvinyl alcohol 15 copies Aluminum powder 5 copies boric acid 2 copies glycerin 5 copies

[0042] Carry out the following steps by weighing the above-mentioned raw materials:

[0043] 1) adding barium perchlorate and water into the reactor for dissolving, then adding boric acid, glycerin and aluminum powder in sequence, and placing the container at 8°C for vacuum stirring to obtain a mixture A;

[0044] The weight volume ratio (g:mL) of described perchlorate and solvent is 1.86:1;

[0045] The stirring time is 20 minutes, and the rotating speed is 250 rpm;

[0046] 2) After adding polyvinyl alcohol to mixture A, continue vacuum stirring at 8°C to obtain mixtur...

Embodiment 2

[0051] An electrically controllable combustion solid propellant based on perchlorate and a preparation method thereof, is characterized in that, comprising raw materials and parts by weight thereof as shown in Table 2:

[0052] Table 2

[0053] lithium perchlorate 73 copies Methylcellulose 10 copies Aluminum powder 10 copies boric acid 1 copy corn syrup 6 servings

[0054] Carry out the following steps by weighing the above-mentioned raw materials:

[0055] 1) Lithium perchlorate and absolute ethanol were added into the reactor for dissolution, then boric acid, corn syrup and aluminum powder were added in sequence, and the container was placed at 10°C for vacuum stirring to obtain mixture A;

[0056] The weight volume ratio (g:mL) of described perchlorate and solvent is 0.54:1;

[0057] The stirring time is 10 minutes, and the rotating speed is 200 rpm;

[0058] 2) After adding methyl cellulose to mixture A, continue vacuum stirri...

Embodiment 3

[0063]An electrically controllable combustion solid propellant based on perchlorate and a preparation method thereof, is characterized in that, comprising raw materials and parts by weight thereof as shown in Table 3:

[0064] table 3

[0065] barium perchlorate 76 copies Hydroxyethyl cellulose 11 copies Aluminum powder 6 servings boric acid 2 copies corn syrup 5 copies

[0066] Carry out the following steps by weighing the above-mentioned raw materials:

[0067] 1) Add barium perchlorate and anhydrous methanol into the reactor for dissolution, then add boric acid, corn syrup and aluminum powder in sequence, place the container at 3°C ​​for vacuum stirring, and obtain mixture A;

[0068] The weight volume ratio (g:mL) of described perchlorate and solvent is 1.86:1;

[0069] The stirring time is 10 minutes, and the rotating speed is 200 rpm;

[0070] 2) After adding hydroxyethyl cellulose to mixture A, continue vacuum stirring at 3...

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Abstract

The invention discloses an electric-controllable combustion solid propellant based on perchlorate and a preparation method thereof. By weight, the electric-controllable solid propellant is prepared by the following raw materials: 35-90 parts of an oxidant, 10-30 parts of an adhesive, 0.1-2 parts of a cross-linking agent, 0.2-10 parts of a plasticizer and 5-20 parts of a metal fuel, wherein the oxidant is the perchlorate. The electric-controllable solid propellant has the better air humidity stability and high-temperature resistance, the difficulty of the preparation technology is low, the preparation process is simple, the operation is easy, and the safety coefficient is high.

Description

technical field [0001] The invention relates to the technical field of solid propellants, in particular to an electrically controllable combustion solid propellant based on perchlorate and a preparation method thereof. Background technique [0002] Gas production is one of the important performance indicators of propellants. Propellants with high gas production are widely used in rocket propellant systems, gas generators, oil field application development, airbags, and devices that require rapid gas production. With the development of modern industrial technology, higher requirements are put forward for the performance control of the ignition, combustion and extinguishment of the propellant system. While improving the safety characteristics of the propellant, it is hoped that the thrust of the propellant system can be precisely controlled. Electronically controlled solid propellants can better adapt to the stringent requirements of modern propellant systems because of their ...

Claims

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Application Information

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IPC IPC(8): C06B29/00C06B29/08C06D5/02
CPCC06B29/00C06B29/08C06D5/02
Inventor 胡建新何志成李洋
Owner CHONGQING UNIV
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