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A kind of auto-ignition agent composition, preparation method, application and gas generator

A technology of automatic ignition and composition, which is applied in the direction of igniting agent, explosives, offensive equipment, etc., can solve the problems such as the inability to play a film release effect, and achieve the effect of improving ignition performance, significant effect, and low decomposition temperature

Active Publication Date: 2021-07-13
HUBEI HANGPENG CHEM POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses dry granulation, and uses extrusion molding for tablet production and granulation production. There are certain risks in the process, especially in the process of tablet compression and granulation. Membrane effect

Method used

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  • A kind of auto-ignition agent composition, preparation method, application and gas generator
  • A kind of auto-ignition agent composition, preparation method, application and gas generator
  • A kind of auto-ignition agent composition, preparation method, application and gas generator

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preparation example Construction

[0075] The present invention adopts the mode of wet granulation to prepare the autoignition agent composition, and the specific preparation method comprises the following steps:

[0076] (1), NTO (3-nitro-1,2,4-triazol-5-one), sodium nitrate (NaNO 3 ), guanidine nitrate, and graphite are mixed to obtain the first material; the first material can be obtained by mixing in a mixing device, and the mixing time is ≤40min; the mixing device can use a multi-motion mixer or an acoustic resonance mixer.

[0077] (2), add water to the first material and carry out wet mixing to obtain the second material, wherein the amount of water added is 3% to 15% of the total mass of the first material; the wet mixing time is 2min to 15min; wet mixing equipment For kneader or mixer.

[0078] (3), passing the second material through a 10-40 mesh screen to obtain the third material;

[0079] (4), drying the third material until the water content is less than 0.5% of the total mass of the third mater...

Embodiment 1

[0097]The self-igniting agent composition comprises the following components in mass percent content:

[0098]

[0099] After these components are weighed, they are compressed into discs with a diameter of 5 mm and a thickness of 2.3 to 2.9 mm by wet granulation and a rotary tablet press. The specific preparation method is: NTO (3-nitro-1,2,4-triazol-5-one), sodium nitrate (NaNO 3 ), guanidine nitrate, and graphite were mixed by a ribbon mixer to obtain the first material; the first material was added to 10% (mass percentage content) of distilled water and carried out wet kneading for 5min to obtain the second material, and the second material was passed through 10 mesh The third material is obtained through a sieve; the third material is dried until the water content is less than 0.5% of the total mass of the third material, and the fourth material is obtained through a 20-mesh screen; the fourth material is passed through a rotary tablet press The material is shaped to o...

Embodiment 2

[0102] The self-igniting agent composition comprises the following components in mass percent content:

[0103]

[0104] After these components are weighed, they are compressed into discs with a diameter of 8 mm and a thickness of 2.4 to 2.6 mm by wet granulation and a rotary tablet press. The specific preparation method is: NTO (3-nitro-1,2,4-triazol-5-one), sodium nitrate (NaNO 3 ), guanidine nitrate, and graphite were mixed by a ribbon mixer to obtain the first material; the first material was added to 8% (mass percentage content) of distilled water and carried out wet kneading for 8min to obtain the second material, and the second material was passed through 10 mesh The third material is obtained through a sieve; the third material is dried until the water content is less than 0.5% of the total mass of the third material, and the fourth material is obtained through a 20-mesh screen; the fourth material is passed through a rotary tablet press The material is shaped to o...

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Abstract

The present invention relates to an autoignition agent composition and its preparation method and application. The autoignition agent composition comprises the following components in mass percent: NTO(3-nitro-1,2,4-triazole-5- ketone) 45% ~ 65%; sodium nitrate (NaNO 3 ) 25%~45%; Guanidine nitrate 4.5%~15.5%; Graphite 0.1%~10%; The automatic ignition powder provided by the present invention, by adopting specific preparation process, Guanidine nitrate is wet-mixed and granulated with NTO, sodium nitrate, Graphite is mixed and prepared into an auto-igniting agent with excellent performance. The auto-igniting agent composition has good long-term heat storage stability and is suitable for a long service life of an automobile. That is, it can realize instant ignition of the auto-igniting agent and realize reliable ignition. The ignition performance has been significantly improved to meet the needs of airbags to protect drivers and passengers.

Description

technical field [0001] The present invention relates to an auto-ignition agent composition and its preparation method and application, in particular to an auto-ignition agent composition whose decomposition temperature and explosion point are lower than that of gas-generating agent and its preparation method, belonging to the automobile airbag gas generator technology field. Background technique [0002] As we all know, with the development of highways and the improvement of automobile performance, the speed of automobiles is getting faster and faster, which makes the traffic accidents of vehicles more frequent, so the airbag system, which is an important part of automobile passive safety, is particularly important. A very important part of the airbag system is the gas generator, its function is to generate a sufficient volume of gas at a fast enough rate in a short time to supply the airbag. Automobile airbags are one or more inflatable devices installed in the front and r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06C15/00C06B31/12B60R21/26
CPCB60R21/26B60R2021/26064C06B31/12C06C15/00
Inventor 罗运强任响宁杜涛张俊刘红卫翟连峰侯晶晶张雯雯尚云平
Owner HUBEI HANGPENG CHEM POWER TECH
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