rGO/CL-20 self-supporting fibrous solid propellant as well as preparation method and application thereof

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 poor self-sustaining combustion performance, low thermal conductivity, difficult solid propellants, etc. question

Active Publication Date: 2018-12-11
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
View PDF3 Cites 3 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • rGO/CL-20 self-supporting fibrous solid propellant as well as preparation method and application thereof
  • rGO/CL-20 self-supporting fibrous solid propellant as well as preparation method and application thereof
  • rGO/CL-20 self-supporting fibrous solid propellant as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] as attached figure 1As shown, 0.2g CL-20 fine powder was added into 1mL deionized water, stirred for 10min and then ultrasonically dispersed for 10min. Add 1 g of GO hydrogel to the above dispersion, stir for 1 hour with magnetic force, and then add VC equal in mass to GO 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 hour 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 three times to obtain rGO / CL-20 hydrogel 4, and then dried naturally 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 respectively immersed in 0.05M, 0.1M and 0.2M KOH aqueous solution for 1h, and then dried in an oven at 60°C for 2h ...

Embodiment 2

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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 a rGO / CL-20 self-supporting fibrous solid propellant and its preparation method and application. 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. Research on micro-propellers (thrust mN level) matching the mass of micro-spacecrafts (<20kg) has become a key issue in the development of aerospace technology. [0003] The chemical energy propulsion using solid fuel has simple and reliable structure, low power consumption, and is suitable for miniaturization and integrated design. It is one of the best choices for the research and application of micro propulsion. The miniaturization of propellers puts forward higher requirements for solid fuel propellants, mainly including: (1) small size (generally in the mi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap