High-strength electric-control solid propellant

A solid propellant, high-strength technology, applied in the direction of offensive equipment, compressed gas generation, etc., can solve problems such as performance research that is rarely reported, to improve mechanical properties and strength, improve viscosity and crystallization degree, and enhance interaction force Effect

Inactive Publication Date: 2017-02-01
HUBEI INST OF AEROSPACE CHEMOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The specific formula composition of the propellant is kept strictly c

Method used

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  • High-strength electric-control solid propellant
  • High-strength electric-control solid propellant
  • High-strength electric-control solid propellant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Propellant composition:

[0040]

[0041] Maximum tensile strength of propellant at 25°C: 6.5MPa, propellant density: 1.52g / cm 3 , safety performance meets the requirements of hazard level 1.3.

Embodiment 2

[0043] Propellant composition:

[0044]

[0045] Maximum tensile strength of propellant at 25°C: 6.2MPa, propellant density: 1.54g / cm 3 , safety performance meets the requirements of hazard level 1.3.

Embodiment 3

[0047] Propellant composition:

[0048]

[0049] Maximum tensile strength of propellant at 25°C: 6.7MPa, propellant density: 1.53g / cm 3 , safety performance meets the requirements of hazard level 1.3.

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Abstract

The invention relates to a high-strength electric-control solid propellant which comprises the following components in percentage by mass: 10-20% of adhesive, 60-80% of main oxidizer, 5-20% of auxiliary oxidizer, 1-2% of crosslinking agent, 0.1-0.5% of coupling agent and 1-5% of fuel additive. The adhesive is water-soluble polyvinyl alcohol (PVA); the main oxidizer is hydroxylammonium nitrate (HAN); the auxiliary oxidizer is one or combination of ammonium nitrate (AN) and ammonium perchlorate (AP); the crosslinking agent is one or combination of boric acid and borax; the coupling agent is a silane coupling agent; and the fuel additive is one or combination of cyclodextrin, sodium alginate, polyvinylpyrrolidone (PVP) and gelatin. The normal-temperature tensile strength of the electric-control solid propellant can be obviously enhanced, and the maximum normal-temperature strength can reach 8 MPa or above. The electric-control solid propellant is suitable to be used as an attitude control or orbit control propellant with higher requirements for normal-temperature strength.

Description

technical field [0001] The invention belongs to the technical field of solid propellants, and relates to a high-strength electronically controlled solid propellant, in particular to an electronically controlled solid propellant with high tensile strength at room temperature, while the propellant can still achieve multiple ignitions and flameouts . Background technique [0002] Electronically controlled solid propellant is a new type of solid propellant that combines the advantages of liquid and solid propellants, and is an important direction for the development of solid propellants in the future. It utilizes the unique electrochemical characteristics of the propellant components, acts on the external electric field, realizes multiple ignition and extinguishment of the propellant, and adjusts the combustion speed of the propellant by adjusting the external voltage. [0003] Electronically controlled solid propellants belong to a new class of solid propellants. There are ver...

Claims

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Application Information

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IPC IPC(8): C06D5/06
CPCC06D5/06
Inventor 黄印陈宗山王拯程红波陶博文庞爱民李洪旭武卓李尚文
Owner HUBEI INST OF AEROSPACE CHEMOTECH
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