Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of deformable solid propellant and its preparation method

A solid propellant and curing agent technology, applied in the direction of offensive equipment, compressed gas generation, non-explosive/non-thermal agent components, etc., can solve the problems of poor adaptability and achieve the effect of changing performance

Active Publication Date: 2021-03-19
HARBIN INST OF TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the known propellants are all designed in advance with the shape of the burning surface, and the adaptability is poor

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
  • A kind of deformable solid propellant and its preparation method
  • A kind of deformable solid propellant and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A deformable solid propellant prepared from the following raw materials: oxidizing agent, reducing agent, shape memory binder, plasticizer and others.

[0026] The oxidant is ammonium perchlorate and ammonium dinitramide; the reducing agent is nano-aluminum powder and magnesium powder; the plasticizer is acetyl triethyl citrate; the shape memory adhesive is an epoxy matrix, a curing agent, and a catalyst And energy-containing additives; wherein the epoxy matrix is ​​bisphenol A epoxy resin, the curing agent is thiocyanuric acid, the catalyst is 2-methylimidazole, the energy-containing additive is polyazide glycidyl ether (GAP), and others are : Alcohol amine complex, aluminate coupling agent, N,N-diphenyl-p-phenylenediamine, carbon black, catocine.

[0027] The mass ratio relationship of the above raw materials is: 50 parts of ammonium perchlorate, 2 parts of ammonium dinitramide, 10 parts of nano-aluminum powder, 1 part of magnesium powder; 3 parts of acetyl triethyl c...

Embodiment 2

[0029] A deformable solid propellant prepared from the following raw materials: oxidizing agent, reducing agent, shape memory binder, plasticizer and others.

[0030] The oxidant is ammonium perchlorate and ammonium dinitramide; the reducing agent is nano-aluminum powder and magnesium powder; the plasticizer is acetyl triethyl citrate; the shape memory adhesive is an epoxy matrix, a curing agent, and a catalyst And energy-containing additives; wherein the epoxy matrix is ​​bisphenol A epoxy resin, the curing agent is thiocyanuric acid, the catalyst is 2-methylimidazole, the energy-containing additive is polyazide glycidyl ether (GAP), and others are : Alcohol amine complex, aluminate coupling agent, N,N-diphenyl-p-phenylenediamine, carbon black, catocine.

[0031] The mass ratio relationship of the above raw materials is: 60 parts of ammonium perchlorate, 4 parts of ammonium dinitramide, 15 parts of nano-aluminum powder, 5 parts of magnesium powder; 6 parts of acetyl triethyl ...

Embodiment 3

[0033] A deformable solid propellant prepared from the following raw materials: oxidizing agent, reducing agent, shape memory binder, plasticizer and others.

[0034] The oxidant is ammonium perchlorate and ammonium dinitramide; the reducing agent is nano-aluminum powder and magnesium powder; the plasticizer is acetyl triethyl citrate; the shape memory adhesive is an epoxy matrix, a curing agent, and a catalyst And energy-containing additives; wherein the epoxy matrix is ​​bisphenol A epoxy resin, the curing agent is thiocyanuric acid, the catalyst is 2-methylimidazole, the energy-containing additive is polyazide glycidyl ether (GAP), and others are : Alcohol amine complex, aluminate coupling agent, N,N-diphenyl-p-phenylenediamine, carbon black, catocine.

[0035] The mass ratio relationship of each raw material is: 58 parts of ammonium perchlorate, 4 parts of ammonium dinitramide, 12 parts of nano-aluminum powder, 3 parts of magnesium powder; 5 parts of acetyl triethyl citrat...

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 relates to a deformable solid propellant which is prepared from the following raw materials: an oxidant, a reducing agent, a shape memory adhesive and a plasticizer, wherein the oxidantis ammonium perchlorate and ammonium dinitramide; the reducing agent is nano aluminum powder and magnesium powder; the plasticizer is acetyl triethyl citrate. The shape memory polymer is used as an adhesive of the solid propellant, and the propellant is endowed with the deformation capability to a certain extent while the performance of the adhesive is not influenced, so that the change of a the combustion surface shape is realized, the performance of an engine is changed, and the engine can better adapt to the flight environment.

Description

technical field [0001] The invention relates to a deformable solid propellant and a preparation method thereof. Background technique [0002] Shape memory polymer is a representative material of intelligent materials, which has two properties of variable stiffness and shape memory. The so-called shape-memory polymer refers to heat-sensitive shape-memory polymer. For this type of polymer, the variable stiffness property means that the stiffness of the material can vary by up to more than 200 times in the glass state and the rubber state of the material. The shape memory property means that the material will automatically return to the original shape when the material is formed when it is in a rubber state and is not subjected to external force. The transition temperature between the rubber state and the glass state of the shape memory polymer is called the glass transition temperature (Tg). When the temperature of the material is lower than the glass transition temperature,...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C06D5/06C06B33/12C06B23/00
CPCC06B23/00C06B23/001C06B33/12C06D5/06
Inventor 冷劲松刘彦菊杜林喆孙健张风华
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com