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Solid gas generator and preparation method thereof

A gas generating agent and solid technology, which is applied in the direction of ammonium perchlorate composition, etc., can solve the problems such as the lack of public reports on negative pressure index type composite solid gas generating agent

Inactive Publication Date: 2013-07-17
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no public report on the development of negative pressure index type composite solid gas generating agent in China

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Composition of gas generating agent

[0037] Formula composition Mass percentage (%) Ethylene oxide tetrahydrofuran copolyether 15.8 Toluene diisocyanate 1.9 ammonium perchlorate 60.0 Acetyl triethyl citrate 3.0 ammonium sulfate 18.0 tert-butylferrocene 0.7 Lecithin / Triethanolamine Boron Trifluoride Complex 0.6

[0038] (2) Performance of gas generating agent

[0039] Characteristic velocity, m / s 1224 Gas average molecular weight, g / mol 22.73 Gas output, l / kg 985.6 Burning rate (3MPa), mm / s 3.273 Pressure index n(2-5MPa) －0.19 Combustion temperature, ℃ 1483

Embodiment 2

[0041] (2) Composition of gas generating agent

[0042] Formula composition Mass percentage (%) Propylene oxide tetrahydrofuran copolyether 17.3 Multifunctional aliphatic diisocyanate 2.6 ammonium perchlorate 58.0 triethyl glycerol tricarbonate 3.0 ammonium sulfate 18.0 n-octyl ferrocene 0.7 Lecithin / Triethanolamine Boron Trifluoride Complex 0.6

[0043] (2) Performance of gas generating agent

[0044] Characteristic velocity, m / s 1183 Gas average molecular weight, g / mol 21.95 Gas output, l / kg 1020 Burning rate (3MPa), mm / s 2.328 Pressure index n(2-5MPa) －0.13 Combustion temperature, ℃ 1322

Embodiment 3

[0046] (1) Composition of gas generating agent

[0047] Formula composition Mass percentage (%) Ethylene oxide tetrahydrofuran copolyether 15.21 Toluene diisocyanate 1.37 ammonium perchlorate 58.0 Dioctyl sebacate 3.0 Oxalodihydrazine 22 tert-butylferrocene 0.5 Lecithin / Triethanolamine Boron Trifluoride Complex 0.6

[0048] (2) Performance of gas generating agent

[0049] Characteristic velocity, m / s 1255 Gas average molecular weight, g / mol 20.45 Gas output, l / kg 1096 Burning rate (3MPa), mm / s 3.982 Pressure index n(2-5MPa) -0.02 Combustion temperature, ℃ 1418

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Abstract

The invention provides a solid gas generator and a preparation method thereof. The solid gas generator comprises 12 to 23% of a polyether adhesive, 1.2 to 3.6% of a curing agent, 50 to 80% of an oxidizing agent, 0 to 5% of a plasticizer, 0 to 30% of a cooling agent, 0 to 5% of a combustion conditioning agent and 0 to 2% of other additives, wherein the polyether adhesive is one or a composition of more than one selected from the group consisting of ethylene oxide tetrahydrofuran copolyether and propylene oxide tetrahydrofuran copolyether, the curing agent is one or a composition of more than one selected from the group consisting of toluene diisocyanate, isophorone diisocyanate and multifunctional aliphatic diisocyanate, and the plasticizer is one or a composition of more than one selected from the group consisting of dioctyl sebacate, acetyl triethyl citrate and triethyl glycerin tricarbonate. The solid gas generator provided by the invention has a negative pressure exponent of 0 to - 0.30 and provides a power source for attitude control and orbit control power systems of light-weight kinetic kill vehicles (KKV).

Description

technical field [0001] The invention relates to a gas generating agent for gas generators and other gas generators, in particular to a negative pressure index type composite solid gas generating agent. Background technique [0002] Space reconnaissance satellites, penetration and anti-penetration of strategic weapons have constituted a non-negligible part of future warfare, and interception weapons play an extremely important role in it. Among interceptor weapons, Kinetic Energy Weapon (KEW) technology has become one of the main driving forces for countries to develop ballistic missile defense systems. The core component of kinetic energy weapons is "kinetic energy kill interceptor" (KKV). At present, the development direction of KKV technology is light weight (second generation technology) and intelligence based on light weight (third generation technology). This trend The gas power source used is required to adopt negative pressure index technology. At present, there is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B29/22
Inventor 乔应克孙兰兰张军民李冰信培培
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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