Gas generating agent for automobile safe gasbag and preparing method thereof

A technology for gas generating agent and automobile safety, which is applied in the production of compressed gas, attacking equipment, etc., can solve problems such as pollution, damage to vehicle occupants and the environment, increase the cost of gas generating agent, etc., to reduce pollution, reduce production costs, and reduce Effects of burns and damage from harmful toxic fumes

Inactive Publication Date: 2008-08-06
烟台安泰德汽车安全系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the gas generating agents widely used in automobile airbags mostly use harmful, highly toxic and high-temperature-generating agents such as sodium azide and hexogen to improve the burning speed and ignition performance of the gas generating agent components. Gas-generating agent not only increases the cost of gas-generating agent, but also requires the manufacturer’s process operators to wear strict personal protective equipment and operate carefully to prevent combustion and explosion accidents during production
And the toxic and harmful high-temperature gas produced by it will cause great harm and pollution to the car occupants and the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: raw material preparation: guanidine nitrate 30g of particle size≤10um, basic copper nitrate 20g of particle size≤8um, strontium nitrate 25g of particle size≤0.15mm, ammonium perchlorate 10g of particle size≤0.15mm, particle size≤0.10mm 2g of ferric oxide, 8g of sodium carboxymethyl cellulose with a particle size of 80-15um, and 5g of kaolin with a particle size of ≤15um.

[0019] Preparation of generator: Mix the above-mentioned raw materials in a mixer in proportion to a uniform powder; pour the mixed raw materials into a kneader, add 10% of the total weight of distilled water, and heat the kneader to 70-90 Celsius, fully knead again, and then cool to 25-40°C; make 20-80 mesh granules from the kneaded raw materials in a granulator; heat the granules in a drying box to remove water, sieve and take The above material is made into a granular gas generating agent; then the granular gas generating agent is pressed into a tablet of a specified size in a rotary ...

Embodiment 2

[0021] Embodiment 2: Raw material preparation: 50g of guanidine nitrate with particle size≤10um, 5g of basic copper nitrate with particle size≤8um, 20g of strontium nitrate with particle size≤0.15mm, 7g of ammonium perchlorate with particle size≤0.15mm, 6g of ferric oxide, 10g of sodium carboxymethyl cellulose with a particle size of 80-15um, and 2g of kaolin with a particle size of ≤15um.

[0022] Preparation of generator: fully mix the above raw materials in a mixer according to the proportion to become a uniform powder; pour the mixed raw materials into a kneader, add 30% of the total weight of distilled water, and heat the kneader to 70-90 Celsius, fully knead again, and then cool to 25-40°C; make 20-80 mesh granules from the kneaded raw materials in a granulator; heat the granules in a drying box to remove water, sieve and take The above material is made into a granular gas generating agent; then the granular gas generating agent is pressed into a tablet of a specified si...

Embodiment 3

[0024] Embodiment 3: raw material preparation: guanidine nitrate 40g of particle size≤10um, basic copper nitrate 20g of particle size≤8um, strontium nitrate 10g of particle size≤0.15mm, ammonium perchlorate 10g of particle size≤0.15mm, particle size≤0.10mm 5g of ferric oxide, 10g of sodium carboxymethyl cellulose with a particle size of 80-15um, and 5g of kaolin with a particle size of ≤15um.

[0025] Preparation of generator: Mix the above raw materials in a mixer according to the proportion to become a uniform powder; pour the mixed raw materials into a kneader, add 25% of the total weight of distilled water, and heat the kneader to 70-90 Celsius, fully knead again, and then cool to 25-40°C; make 20-80 mesh granules from the kneaded raw materials in a granulator; heat the granules in a drying box to remove water, sieve and take The above material is made into a granular gas generating agent; then the granular gas generating agent is pressed into a tablet of a specified size ...

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Abstract

The invention discloses an automobile airbag gas generating agent and a preparation method thereof. The invention is characterized in that 30 to 50 percent of guanidine nitrate, 5 to 20 percent of basic cupric nitrate, 10 to 25 percent of strontium nitrate, 3 to 10 percent of ammonium perchlorate, 2 to 6 percent of iron sesquioxide, 2 to 10 percent of sodium carboxymethyl cellulose and 2 to 5 percent of caoline taken in accordance with the weight percentages are mixed thoroughly; after distilled water is added, the mixture is heated and kneaded and cooled for granulation; obtained particles are then dried and sieved to get the gas generating agent. Raw materials for products to be made with the method of the invention are easy to acquire and have low prices. The production process is safe and conducive to safety of automobile occupants and also to environment protection.

Description

Technical field: [0001] The invention relates to a gas generating agent and a preparation method thereof, in particular to a gas generating agent for an automobile airbag and a preparation method thereof. Background technique: [0002] Now the automobile airbag technology has been more and more widely used in our country, to use the airbag to absorb the impact energy to protect the personal safety of the driver and other occupants in the event of an accident. To inflate the air bag at the instant of an accident, a gas generant is required. At present, the gas generating agents widely used in automobile airbags mostly use harmful, highly toxic and high-temperature-generating agents such as sodium azide and hexogen to improve the burning speed and ignition performance of the gas generating agent components. High-quality gas-generating agent not only increases the cost of gas-generating agent, but also requires the manufacturer’s process operators to wear tight personal protec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06D5/06
Inventor 朱旭朱宗胜方立敏
Owner 烟台安泰德汽车安全系统有限公司
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