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A kind of gas generating agent composition and preparation method thereof

A technology of gas generating agent and composition, which is applied in the generation of compressed gas and attacking equipment, etc. It can solve the problems of increased residue amount and reduced gas production efficiency, and achieves the effects of advanced decomposition temperature, reduced gas production efficiency and stable performance

Active Publication Date: 2017-11-17
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the gas generant composition in the prior art improves the ignitability and lowers the combustion temperature while increasing the amount of residue and reducing the gas production efficiency by adding coolant components, thereby providing a non-toxic Gas generant composition requiring addition of coolant and perchlorate, good ignitability and low combustion temperature and preparation method thereof

Method used

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  • A kind of gas generating agent composition and preparation method thereof

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Embodiment 1

[0039] The gas generating agent composition described in this embodiment adopts the following raw material components:

[0040] Fuel guanidine nitrate, 44g;

[0041] Oxidant basic copper nitrate, 47g;

[0042] Cerium oxalate, 3g;

[0043] Azotetrazolium biguanide, 2g;

[0044] Silicon dioxide, 1g;

[0045] Binder polyethylene glycol, 2g.

[0046] The preparation method of described gas generant composition, it comprises the steps:

[0047] Take the guanidine nitrate, basic copper nitrate, cerium oxalate, biguanidine azotetrazolium and silicon dioxide respectively according to the above weight, mix them uniformly, add the binder polyethylene glycol, granulate, dry at 60°C, press Slice and serve.

Embodiment 2

[0049] The gas generating agent composition described in this embodiment adopts the following raw material components:

[0050] Fuel guanidine nitrate, 40g;

[0051] Oxidant basic copper nitrate, 50g;

[0052] Cerium oxalate, 1g;

[0053] Ammonium azotetrazolium, 7g;

[0054] Binder sodium carboxymethylcellulose, 2g.

[0055] The preparation method of described gas generant composition, it comprises the steps:

[0056] According to the above weight, take the guanidine nitrate, basic copper nitrate, cerium oxalate and ammonium azotetrazolium respectively, mix them evenly, add the binder sodium carboxymethyl cellulose, granulate, dry at 60°C, and press into tablets to obtain .

Embodiment 3

[0058] The gas generating agent composition described in this embodiment adopts the following raw material components:

[0059] Fuel guanidine nitrate, 42g;

[0060] Basic copper nitrate, 46g;

[0061] Cerium oxalate, 2g;

[0062] Azotetrazolium biguanidine, 5g;

[0063] The slagging agent is a mixture of alumina and kaolin, wherein 3g of alumina and 1g of kaolin;

[0064] Binder sodium carboxymethylcellulose, 1 g.

[0065] The preparation method of described gas generant composition, it comprises the steps:

[0066] Take the guanidine nitrate, basic copper nitrate, cerium oxalate, biguanidine azotetrazolium, alumina and kaolin according to the above weight respectively, mix them uniformly, add the binder sodium carboxymethyl cellulose, granulate and heat at 60°C Drying and pressing into tablets.

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Abstract

The present invention relates to a kind of gas generant composition, and its raw material composition comprises fuel, oxidant, rare earth metal organic salt and azotetrazole nonmetallic salt, by adding rare earth metal organic salt and azotetrazole nonmetallic to fuel and oxidant The salt component makes the decomposition temperature of the fuel advance, promotes the fuel decomposition, increases the burning rate and gas production; and the azotetrazole non-metallic component produces a large amount of gas after reacting with the oxide, enhances the ignitability, and increases the burning rate , reduce the combustion temperature. The gas generant composition of the present invention can effectively improve ignitability and reduce combustion temperature while not generating residue, has high gas production efficiency, large gas production volume and fast burning speed.

Description

technical field [0001] The invention relates to a gas generating agent composition and a preparation method thereof, belonging to the technical field of gas generating agents. Background technique [0002] With the enhancement of people's road safety awareness, automobile airbag system has become one of the standard configurations of automobiles. The automotive airbag system belongs to the field of passive safety. When the car is collided during operation, the gas generating agent in the airbag gas generator will be triggered to generate a large amount of gas, making the airbag deploy and forming a gap between the car and the passengers. Safety barriers to protect passengers from or reduce injuries caused by inertia. Therefore, the gas generating agent in the gas generator needs to have the following properties: (1) good ignitability, rapid gas generation, and complete combustion to reach the maximum pressure within tens of milliseconds; (2) safe gas composition, which can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06D5/06
Inventor 简丽娟李金贵
Owner BYD CO LTD
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