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High-calorific-value easily-ablated artificial de-bonding layer material and preparation method thereof

A layer material, high calorific value technology, applied in the direction of offensive equipment, compressed gas generation, explosives, etc., can solve the problems of small contribution to the total impact of solid ramjet engines, waste of resources, and non-provision, so as to increase temperature and pressure, increase engine The effect of total flushing and high calorific value

Active Publication Date: 2020-09-18
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the solid ramjet gas generator, there is basically no combustion, no or only a small calorific value is provided, and the contribution to the total rush of the solid ramjet is very small, and there is a waste of resources

Method used

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  • High-calorific-value easily-ablated artificial de-bonding layer material and preparation method thereof
  • High-calorific-value easily-ablated artificial de-bonding layer material and preparation method thereof
  • High-calorific-value easily-ablated artificial de-bonding layer material and preparation method thereof

Examples

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preparation example Construction

[0037] According to a second aspect of the present invention, there is provided a method for preparing an artificial debonding layer material with high calorific value and easy ablation, the method comprising the following steps:

[0038] Add particle reinforcing agent, active agent, sulfur and accelerator to solid nitrile butadiene raw rubber that has been masticated, and pressurize and vulcanize after sufficient mixing to prepare artificial debonding layer material.

[0039] Wherein, the selection and raw material ratio of solid nitrile raw rubber and particle reinforcing agent, active agent, sulfur and accelerator are consistent with those described in the first aspect.

[0040] In a preferred embodiment, during the preparation of the artificial debonding layer material, a calorific value enhancer is also added in the mixing stage, and the calorific value enhancer includes any one of aluminum powder, magnesium powder or boron powder One or more, preferably boron powder. Th...

Embodiment 1

[0047] The artificial debonding layer material with high calorific value and easy ablation is made of the following raw materials in parts by weight:

[0048]

[0049] The preparation method is as follows: masticating solid nitrile rubber in an open mill; 2) adding carbon black and boron powder of the above weight, and fully mixing; 3) adding zinc oxide and stearic acid of the above weight, fully mixing; 4) Add the above weight of sulfur and accelerator M, and mix fully; 5) In the open mill, reverse the thin pass in the form of a triangular bag, and release the sheet for use; 6) The material is made into a test piece by mold pressurization, The process parameters are: vulcanization temperature 160°C, vulcanization pressure 15Mpa, vulcanization time 40 minutes.

Embodiment 2

[0051] The artificial debonding layer material with high calorific value and easy ablation is made of the following raw materials in parts by weight:

[0052]

[0053] The preparation method is consistent with that in Example 1.

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Abstract

The invention provides a high-calorific-value easily-ablated artificial de-bonding layer material and a preparation method thereof. The artificial de-bonding layer material is prepared from the following raw materials in parts by weight: 100 parts of solid butyronitrile raw rubber, 20-40 parts of a particle reinforcing agent, 6-10 parts of an active agent, 1-3 parts of sulfur and 1-3 parts of a promoter. Ablation-resistant fillers such as resin, fibers and inorganic oxide in the traditional ablation-resistant rubber-based heat insulation layer material are removed, and the high-calorific-valueeasily-ablated filler is filled, the ablation performance of the artificial de-bonding layer material is effectively reduced on the premise that the tensile strength is not influenced, and the totalcalorific value of the material and the total impulse of an engine are improved.

Description

technical field [0001] The invention belongs to the field of artificial debonding layer materials, and relates to a solid propellant artificial debonding layer material, in particular to an artificial debonding layer material with high calorific value and easy ablation and a preparation method thereof, which are mainly used in solid ramjet engine gas generation Stress relief of boron-containing grains. Background technique [0002] There is an insulating layer in the solid engine and solid ramjet gas generator, which is used to prevent the high temperature gas from burning the gas generator shell, preventing the shell strength from being reduced due to overheating and endangering the integrity of its structure; the shell and the grain are buffered stress transfer between them; and seal the gas generator. The propellant is initially vacuum poured into the gas generator in a liquid state, and then solidifies into a solid grain. During the curing process, it will generate tens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/00C06D5/00
CPCC06B33/00C06D5/00
Inventor 肖金武李洋孙笑然张先瑞胡俊杰詹穹王江彭正贵伍政陈亚格彭琴
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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