CN104418676A - Gas generating agent for gas generator and manufacturing method thereof - Google Patents
Gas generating agent for gas generator and manufacturing method thereof Download PDFInfo
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- CN104418676A CN104418676A CN201310377633.XA CN201310377633A CN104418676A CN 104418676 A CN104418676 A CN 104418676A CN 201310377633 A CN201310377633 A CN 201310377633A CN 104418676 A CN104418676 A CN 104418676A
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Abstract
The invention discloses a gas generating agent for a gas generator and a manufacturing method thereof, wherein the gas generating agent comprises the following components by the mass percentage: 15%-30% of a bis(tetrazole) potassium salt; 50%-80% of modified ammonium nitrate; 0%-15% of a performance regulator; and 0%-15% of a bonding and slag forming agent. The gas generating agent is prepared by weighing the components according to the proportion and through dry granulation and water-soluble granulation process; the bis(tetrazole) potassium salt is adopted to cooperate with modified ammonium nitrate, the dry or spray granulation process is used, the medicament granulating requirements can be met, and the granulating efficiency is improved. The gas generating agent can be ignited to burn under heat released from igniting gunpowder, ignition is quick, combustion can be smoothly carried out, gas is produced, the use requirements of inflatable airbags are met, the gas generation amount is large, the gas generation speed is fast, ignition is easy, low-temperature ignition performance is excellent, and thermal stability and chemical stability are good. The gas generating agent cannot be liquified to flow during self combustion.
Description
Technical field
The present invention relates to the gas-evolution agent producing gas.
Background technology
Gas-evolution agent is a class solid state chemistry gas producing medicinal, primarily of chemical substance compositions such as oxygenant, reductive agent, ignition dope and tackiness agents.Patent for gas-evolution agent is more, is mainly used in automobile safety air bag gas generator, mainly contains Guanidinium nitrate class, nitrofuanidine and ammonium nitrate class etc.And for the gas-evolution agent of ammonium nitrate class, be mostly in domestic and international patent to carry out modification to ammonium nitrate, then use modified ammonium nitrate and other mixing of materials to carry out formula use, such as:
US5545272, US5641938, US6468369 use modified ammonium nitrate respectively with 5 amino tetrazole, Guanidinium nitrate, HTPB and dinitric acid polyethylenediamine used in combination;
US6019861 is formula patent, mentions the formula of ammonium nitrate and saltpetre, strontium nitrate, 5 amino tetrazoles, simple substance strontium, ferric oxide composition in patent;
The formula of ammonium nitrate and saltpetre, Mierocrystalline cellulose, HPC, MNA, magnesiumcarbonate composition is mentioned in US6315930;
Use in US5872329 modified ammonium nitrate and 1,3,5-triazole ammonium salt, 1,5-tetrazolium ammonium salt composition formula, wherein modified ammonium nitrate is 35% ~ 85%, and in modified ammonium nitrate, potassium nitrate content is 10% ~ 15%;
Use in US6074502 1,3,5 triazole ammonium salts, 1,5 tetrazolium ammonium salts are main fuel, content is 5% ~ 45%, hydrazo-dicarbonamide, azoformamide are secondary fuel, content is 1% ~ 35%, with the formula of modified ammonium nitrate, modified ammonium nitrate content is 55% ~ 85%, uses potter's clay, diatomite, alumina or silicon-dioxide as slagging and tackiness agent simultaneously, and content is 0.1% ~ 10%;
Use modified ammonium nitrate and triamino Guanidinium nitrate (TAGN) that combustion speed can be improved in US5531941, US3954528, but triamino Guanidinium nitrate (TAGN) is more responsive, explosive;
US3044123 describes and uses the propellant grain preparation method that ammonium nitrate is main component, use the tackiness agent with oxidisability, comprise cellulose acetate, PVC, PVA, vinyl cyanide and styrene-acrylonitrile, after mixing, carry out mold pressing, make spheroidal particle and use;
US4111728 uses nitric acid ammonium type propelling agent, and coordinate polyester type binders, fuel is oxamide and Guanidinium nitrate, as the gas producing medicinal of inflatable liferaft or similar equipment;
US4124368 has set forth the explosion-suppressing method using saltpetre modified ammonium nitrate;
US4552763, US5098683 have set forth Potassium monofluoride can improve the expansion of ammonium nitrate at brilliant height place and contraction;
US5074938 describes modified ammonium nitrate as the application of oxygenant in boron-propellant;
US6306232 describes the combination of modified ammonium nitrate, Guanidinium nitrate and at least one height nitrogen compound, and high nitrogen compound comprises guanidine class, tetrazolium, triazole, tetrazolium salts and triazolium salt, and the fusing point of this kind of combination is at least 115 DEG C;
US6887326 describes modified ammonium nitrate and two tetrazolium ammonium salt uses wet method, dry method or vibration mixing, then carries out pelletizing press sheet technique.
The deficiency that prior art exists is: use the method to modification of ammonium nitrate, or modified ammonium nitrate carries out formula combination, material component is more, and in production, technology controlling and process link is many, is unfavorable for that cost reduces.
Summary of the invention
One is the object of the present invention is to provide to burn smoothly, produce gas, meet the service requirements of inflatable airbag, and gas production rate is large, aerogenesis speed is lighted soon, easily, the producer gas generator gas-evolution agent that low-temperature ignition excellent performance, thermostability and chemical stability are good.
The present invention also aims to the manufacture method that aforesaid gas generator gas-evolution agent is provided.
Technical solution of the present invention comprises following content and component (mass percent):
Two tetrazolium sylvite 15% ~ 30%;
Modified ammonium nitrate 50% ~ 80%;
Properties modifier 0% ~ 15%;
Bonding and slag forming agent 0% ~ 15%;
Granulation according to the above ratio forms.
The preferred content of producer gas generator gas-evolution agent of the present invention is:
Two tetrazolium sylvite 18% ~ 25%;
Modified ammonium nitrate 60% ~ 70%;
Properties modifier 0% ~ 15%;
Bonding and slag forming agent 0% ~ 15%.
Described pair of tetrazolium sylvite structural formula is as follows.
Modified ammonium nitrate of the present invention is ammonium nitrate and saltpetre, and wherein in modified ammonium nitrate, saltpetre mass percentage is greater than 8%.
Properties modifier of the present invention is nitrate, perchlorate or oxymuriate.
Bonding and slag forming agent of the present invention is potter's clay, talcum powder, White Carbon black, silicon-dioxide, the one of alumina or combination.
The manufacture method of producer gas generator gas-evolution agent of the present invention, comprises the following steps:
(1) raw material joins in mixing tank after weighing in proportion, and then use mixing machine mixing, mixing time is 30min ~ 120min;
(2) material mixed carries out granulation by one of the following two kinds mode;
A, use dry granulating machine carry out granulation, and joined in dry granulating machine hopper by material powder, operational outfit is granulated, then by for subsequent use for the powder collection of preparation;
B, water-soluble mist projection granulating, the water of more than 10% of weight of material is added in material, then start stirring rake material is fully mixed with water, make water-soluble medicine slurry, material is heated, Heating temperature 100 DEG C ~ 170 DEG C simultaneously, after stirring more than 15min, use spray-drier, carry out spray drying granulation, then that powder collection is for subsequent use;
(3) use pressing machine that powder is pressed into powder or tablet the material after granulation;
(4) baking oven powder suppressed or tablet being put into 60 DEG C ~ 90 DEG C dries 12h ~ 45h, after being then down to room temperature.
In step (1), can add blending agent, described mixed medium is porcelain ball or tetrafluoroethylene ball, to strengthen mixed effect, promotes mixing and the flowing of fine powder material, reach the object mixed in such hybrid motion
Described pressing machine is oil press, rotary tablet machine or powder former.
The invention has the advantages that:
(1) the rich nitrogen fuel that gas-evolution agent of the present invention uses is two tetrazolium sylvite, two tetrazolium sylvite due to nitrogen content high, nitrogen content reaches 52.34%, and manufacturing process is mature and stable, wide material sources, low price, the mechanical sensitivity of safety;
(2) oxygenant that the present invention is used is modified ammonium nitrate, wherein in modified ammonium nitrate, potassium nitrate content is greater than 8%, between-35 DEG C ~+85 DEG C, endotherm(ic)peak is not had through modified ammonium nitrate, and-35 DEG C is two boundary temperatures of air bag generator with+85 DEG C, the demand of air bag generator can be met.
(3) properties modifier that the present invention is used, bonding and slag forming agent, effectively can reduce the decomposition temperature of two tetrazolium sylvite, have katalysis to two tetrazolium sylvite, and synchronism is bonding and ensure that tablet forming effect adding of slag forming agent, improves the intensity of tablet.
(4) gas-evolution agent adds sufficient water, increases the autohension of medicinal powder, is also conducive to granulating and forming.
The present invention uses two tetrazolium sylvite to coordinate modified ammonium nitrate, uses dry method or spraying granulation technique, can meet the granulation requirement of medicament, improve the efficiency of granulation.
The present invention utilizes two tetrazolium sylvite and modified ammonium nitrate, properties modifier, gas-evolution agent that is bonding and slag forming agent composition can by ignition combustion under priming charge percussion liberated heat, igniting rapidly, can burn smoothly, produce gas, meet the service requirements of inflatable airbag, and gas production rate is large, aerogenesis speed is lighted soon, easily, and low-temperature ignition excellent performance, thermostability and chemical stability are good.Gas-evolution agent of the present invention can not liquefy when own combustion and flow.
Embodiment
By the implementation result that following example is in order to composition and engineering of the present invention is better described, but the present invention is not limited only to this several embodiment, should comprise the four corner in claim.
(following proportioning raw materials is mass percent)
Embodiment 1
23% pair of tetrazolium sylvite; 71% modified ammonium nitrate, wherein in modified ammonium nitrate, potassium nitrate content is 12%; 6% potter's clay; Added successively in mixing machine by medicinal powder, use porcelain ball to be blending agent, mix, mixing time is 120min, obtains the medicinal powder of uniformity after mixing; Use dry granulation process to carry out granulation, after granulation, use 100 tons of oil presses to carry out pressing, place in 75 DEG C ± 2 DEG C baking ovens after compacting and dry for 35 hours; Then tablet taking carries out-40 DEG C ~ 160 DEG C dsc analysis, and endotherm(ic)peak appears at 116 DEG C.Again tablet is put into producer gas generator, light a fire after 4 hours-35 DEG C ,+23 DEG C ,+85 DEG C insulations respectively, the time of giving vent to anger is less than 100 milliseconds, and without obvious residue, producer is complete.
Embodiment 2
25% pair of tetrazolium sylvite; 65% modified ammonium nitrate, wherein potassium nitrate content is 10%; 5% talcum powder; 5% Potcrate; Added successively in mixing machine by medicinal powder, use porcelain ball to be blending agent, mix, mixing time is 120min, obtains the medicinal powder of uniformity after mixing; Use water-soluble spray-drying process technique to carry out granulation, Heating temperature 150 DEG C, after granulation, use 100 tons of oil presses to carry out pressing, place in 75 DEG C ± 2 DEG C baking ovens after compacting and dry for 35 hours; Then tablet taking carries out-40 DEG C ~ 160 DEG C dsc analysis, and endotherm(ic)peak appears at 114 DEG C.Again tablet is put into producer gas generator, light a fire after 4 hours-35 DEG C ,+23 DEG C ,+85 DEG C insulations respectively, the time of giving vent to anger is less than 100 milliseconds, and without obvious residue, producer is complete.
Embodiment 3
17% pair of tetrazolium sylvite; 68% modified ammonium nitrate, wherein potassium nitrate content is 10%; 5% White Carbon black; 10% potassium perchlorate; Added successively in mixing machine by medicinal powder, use porcelain ball to be blending agent, mix, mixing time is 120min, obtains the medicinal powder of uniformity after mixing; Use water-soluble spray-drying process technique to carry out granulation, Heating temperature 160 DEG C, after granulation, use 100 tons of oil presses to carry out pressing, place in 75 DEG C ± 2 DEG C baking ovens after compacting and dry for 35 hours; Then tablet taking carries out-40 DEG C ~ 160 DEG C dsc analysis, and endotherm(ic)peak appears at 115 DEG C.Again tablet is put into producer gas generator, light a fire after 4 hours-35 DEG C ,+23 DEG C ,+85 DEG C insulations respectively, the time of giving vent to anger is less than 100 milliseconds, and without obvious residue, producer is complete.
In a word, the present invention makes the perfect combustion of nitrogen gas propellant, and gas production rate is large simultaneously; Broad application temperature range, can be lighted-35 DEG C ~+85 DEG C successes, through repeatedly igniting experiments, can by BKN priming charge, 5AT class priming charge reliable ignition, and reliably burning release gas smoothly, ensure that the success ratio of producer.
Claims (8)
1. a producer gas generator gas-evolution agent, is characterized in that mass percent component is as follows:
Two tetrazolium sylvite 15% ~ 30%;
Modified ammonium nitrate 50% ~ 80%;
Properties modifier 0% ~ 15%;
Bonding and slag forming agent 0% ~ 15%.
2. producer gas generator gas-evolution agent according to claim 1, is characterized in that:
Two tetrazolium sylvite 18% ~ 25%;
Modified ammonium nitrate 60% ~ 70%;
Properties modifier 0% ~ 15%;
Bonding and slag forming agent 0% ~ 15%.
3. producer gas generator gas-evolution agent according to claim 1, is characterized in that: the component of described modified ammonium nitrate is: ammonium nitrate and saltpetre, and wherein in modified ammonium nitrate, saltpetre mass percentage is greater than 8%.
4. producer gas generator gas-evolution agent according to claim 1, is characterized in that: described properties modifier is nitrate, perchlorate or oxymuriate.
5. producer gas generator gas-evolution agent according to claim 1, is characterized in that: described bonding and slag forming agent is potter's clay, talcum powder, White Carbon black, silicon-dioxide, the one of alumina or combination.
6. a manufacture method for producer gas generator gas-evolution agent according to claim 1, is characterized in that comprising the following steps:
(1) raw material joins in mixing tank after weighing in proportion, and then use mixing machine mixing, mixing time is 30min ~ 120min;
(2) material mixed carries out granulation by one of the following two kinds mode;
A, use dry granulating machine carry out granulation, and joined in dry granulating machine hopper by material powder, operational outfit is granulated, then by for subsequent use for the powder collection of preparation;
B, water-soluble mist projection granulating, the water of more than 10% of weight of material is added in material, then start stirring rake material is fully mixed with water, make water-soluble medicine slurry, material is heated, Heating temperature 100 DEG C ~ 170 DEG C simultaneously, after stirring more than 15min, use spray-drier, carry out spray drying granulation, then that powder collection is for subsequent use;
(3) use pressing machine that powder is pressed into powder or tablet the material after granulation;
(4) baking oven powder suppressed or tablet being put into 60 DEG C ~ 90 DEG C dries 12h ~ 45h, after being then down to room temperature.
7. the manufacture method of producer gas generator gas-evolution agent according to claim 6, is characterized in that: in step (1), adds blending agent, and described mixed medium is porcelain ball or tetrafluoroethylene ball.
8. the manufacture method of producer gas generator gas-evolution agent according to claim 6, is characterized in that: described pressing machine is oil press, rotary tablet machine or powder former.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310377633.XA CN104418676A (en) | 2013-08-27 | 2013-08-27 | Gas generating agent for gas generator and manufacturing method thereof |
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| CN201310377633.XA CN104418676A (en) | 2013-08-27 | 2013-08-27 | Gas generating agent for gas generator and manufacturing method thereof |
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| CN104418676A true CN104418676A (en) | 2015-03-18 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106699490A (en) * | 2016-01-25 | 2017-05-24 | 湖北航天化学技术研究所 | Safety airbag igniting powder composition and preparation method of safety airbag igniting powder composition |
| CN107139657A (en) * | 2017-05-24 | 2017-09-08 | 广州科技职业技术学院 | Tyre safety device and the tire provided with the device |
| CN107698415A (en) * | 2017-10-24 | 2018-02-16 | 湖北航鹏化学动力科技有限责任公司 | A kind of gas generant composition, preparation method, application and gas generator |
| CN108871111A (en) * | 2018-07-16 | 2018-11-23 | 湖北三江航天红林探控有限公司 | A kind of big L/D ratio charge constitution and loading method |
| CN109400427A (en) * | 2018-12-26 | 2019-03-01 | 湖北航天化学技术研究所 | A kind of granulating process of high burn rate gas-forming agent |
| CN112624888A (en) * | 2020-09-29 | 2021-04-09 | 陈肇明 | Gas generating agent for novel safety air bag device |
| CN114349584A (en) * | 2022-01-27 | 2022-04-15 | 湖北航天化学技术研究所 | Propellant with low ablation property, high energy and low characteristic signal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1072273A (en) * | 1996-08-28 | 1998-03-17 | Nippon Kayaku Co Ltd | Gas generating agent for air bag |
| CN1244916A (en) * | 1996-11-08 | 2000-02-16 | 汽车系统实验室公司 | Nonazide gas generant compositions |
| CN1277597A (en) * | 1998-09-28 | 2000-12-20 | 大赛璐化学工业株式会社 | Gas generator composition |
| CN1376135A (en) * | 1999-09-27 | 2002-10-23 | 大赛璐化学工业株式会社 | Basic metal nitrate, method for producing the same and gas-generating agent composition |
| US20040016480A1 (en) * | 2002-04-04 | 2004-01-29 | Williams Graylon K. | Nonazide gas generant compositions |
| CN1644574A (en) * | 2004-12-16 | 2005-07-27 | 中国航天科技集团公司第四研究院第四十二研究所 | Non-nitrine gas generating agent and production thereof |
-
2013
- 2013-08-27 CN CN201310377633.XA patent/CN104418676A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1072273A (en) * | 1996-08-28 | 1998-03-17 | Nippon Kayaku Co Ltd | Gas generating agent for air bag |
| CN1244916A (en) * | 1996-11-08 | 2000-02-16 | 汽车系统实验室公司 | Nonazide gas generant compositions |
| CN1277597A (en) * | 1998-09-28 | 2000-12-20 | 大赛璐化学工业株式会社 | Gas generator composition |
| CN1376135A (en) * | 1999-09-27 | 2002-10-23 | 大赛璐化学工业株式会社 | Basic metal nitrate, method for producing the same and gas-generating agent composition |
| US20040016480A1 (en) * | 2002-04-04 | 2004-01-29 | Williams Graylon K. | Nonazide gas generant compositions |
| CN1644574A (en) * | 2004-12-16 | 2005-07-27 | 中国航天科技集团公司第四研究院第四十二研究所 | Non-nitrine gas generating agent and production thereof |
Non-Patent Citations (2)
| Title |
|---|
| 姚俊等: "硝酸铵类产气药水溶工艺的研究", 《化工管理》 * |
| 柴玉萍等: "非叠氮燃气发生剂配方研制进展", 《宇航材料工艺》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106699490A (en) * | 2016-01-25 | 2017-05-24 | 湖北航天化学技术研究所 | Safety airbag igniting powder composition and preparation method of safety airbag igniting powder composition |
| CN107139657A (en) * | 2017-05-24 | 2017-09-08 | 广州科技职业技术学院 | Tyre safety device and the tire provided with the device |
| CN107698415A (en) * | 2017-10-24 | 2018-02-16 | 湖北航鹏化学动力科技有限责任公司 | A kind of gas generant composition, preparation method, application and gas generator |
| CN108871111A (en) * | 2018-07-16 | 2018-11-23 | 湖北三江航天红林探控有限公司 | A kind of big L/D ratio charge constitution and loading method |
| CN109400427A (en) * | 2018-12-26 | 2019-03-01 | 湖北航天化学技术研究所 | A kind of granulating process of high burn rate gas-forming agent |
| CN109400427B (en) * | 2018-12-26 | 2021-02-02 | 湖北航天化学技术研究所 | Granulation process of gas generating agent with high burning speed |
| CN112624888A (en) * | 2020-09-29 | 2021-04-09 | 陈肇明 | Gas generating agent for novel safety air bag device |
| CN114349584A (en) * | 2022-01-27 | 2022-04-15 | 湖北航天化学技术研究所 | Propellant with low ablation property, high energy and low characteristic signal |
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Application publication date: 20150318 |