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rgo/cl-20 self-supporting fibrous solid propellant and its preparation method and application

A CL-20, solid propellant technology, applied in the direction of nitrated acyclic/alicyclic/heterocyclic amine explosive composition, detonating cord, etc., can solve the problem of low thermal conductivity, poor self-sustaining combustion performance, difficult solid propellants, etc. question

Active Publication Date: 2020-08-18
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, CL-20 itself has poor self-sustaining combustion performance due to its high activation energy and low thermal conductivity, and it is difficult to be directly used in solid propellants. It is urgent to explore new material construction systems to realize its propellant applications.

Method used

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  • rgo/cl-20 self-supporting fibrous solid propellant and its preparation method and application
  • rgo/cl-20 self-supporting fibrous solid propellant and its preparation method and application
  • rgo/cl-20 self-supporting fibrous solid propellant and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0039] as attached figure 1As shown, 0.2 g of CL-20 refined powder was added to 1 mL of deionized water, stirred for 10 min, and ultrasonically dispersed for 10 min. 1 g of GO hydrogel was added to the above dispersion liquid, and after magnetic stirring for 1 h, VC of the same mass as GO was added to obtain GO / CL-20 / VC aqueous solution 2. The GO / CL-20 / VC aqueous solution 2 was poured into the capillary glass tube 1, sealed with a sealing cap 3, and then placed in an oven for hydrothermal reaction for 1 h at a reaction temperature of 90 °C. After the sample was naturally cooled, the sample was taken out from the glass capillary, immersed in deionized water and rinsed for 3 times to obtain rGO / CL-20 hydrogel 4, which was then naturally dried and formed to obtain rGO / CL-20 self-supporting fibrous solid propellant. 5. Finally, three parts of rGO / CL-20 self-supporting fibrous solid propellant 5 were immersed in KOH aqueous solutions with concentrations of 0.05M, 0.1M and 0.2M fo...

Embodiment 2

[0041] as attached figure 2 As shown, 1 g of GO hydrosol was magnetically stirred for 1 h and then added with the same mass of VC as GO to obtain GO / VC aqueous solution 6. The GO / VC aqueous solution 6 was poured into the capillary glass tube 1, sealed with a sealing cover 3, and then placed in an oven for hydrothermal reaction for 1 h, and the reaction temperature was 90 °C. After the sample was naturally cooled, the sample was taken out from the glass capillary, immersed in deionized water for 3 times, and then transferred to acetone 7. After solvent replacement, the rGO fiber 8 after acetone replaced water was obtained, and transferred to 100 mol / L CL-20 In solution 9, after the CL-20 molecules fully diffused into the rGO fibers, the rGO fibers 10 replaced by the acetone solution of CL-20 were obtained, and then naturally dried and formed to obtain the rGO / CL-20 self-supporting fibrous solid propellant 5. Finally, the rGO / CL-20 self-supporting fibrous solid propellant 5 wa...

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Abstract

The invention discloses an rGO / CL-20 self-supporting fibrous solid propellant, which is composed of CL-20 nanometre or micrometre particles embedded in a rGO three-dimensional network. The invention also provides a preparation method and application of a rGO / CL-20 self-supporting fibrous solid propellant. According to the invention, a rGO three-dimensional network is constructed and simultaneouslya CL-20 micro-nano material is embedded in the rGO three-dimensional network to realize a solid propellant which uses CL-20 as a main release component and rGO as a heat transfer and combustion leading component. The superposition of the solid propellant utilizes the combustion heat release of rGO and CL-20, and the combustion product of CL-20 can further undergo redox reaction with rGO, therebyrealizing the energy release of rGO / CL-20 higher than that of CL-20, and as an innovative development of CL-20 applications.

Description

technical field [0001] The invention relates to the field of solid propellants, in particular to an rGO / CL-20 self-supporting fibrous solid propellant and a preparation method and application thereof. Background technique [0002] With the rapid development of aerospace technology and the traction of higher and higher application requirements, the miniaturization of aircraft has become an inevitable trend of development. The study of micro-propellers (thrust in the order of mN) that matches the mass (<20kg) of micro-spacecraft has become a key issue in the development of aerospace technology. [0003] The chemical energy propulsion using solid fuel has the advantages of simple and reliable structure, low power consumption, suitable for miniaturization and integrated design, and is one of the best choices for the research and application of micro propulsion. The miniaturization of thrusters has put forward higher requirements for solid fuel propellants, which mainly inclu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/34C06C5/04
CPCC06B25/34C06C5/04
Inventor 李小东杨光成黄兵谯志强陈瑾
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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