CN107641065A - One kind is without chlorine low melting point thermoplasticity gas generator propellant and preparation method thereof - Google Patents
One kind is without chlorine low melting point thermoplasticity gas generator propellant and preparation method thereof Download PDFInfo
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- CN107641065A CN107641065A CN201710419094.XA CN201710419094A CN107641065A CN 107641065 A CN107641065 A CN 107641065A CN 201710419094 A CN201710419094 A CN 201710419094A CN 107641065 A CN107641065 A CN 107641065A
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- gas generator
- melting point
- low melting
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Abstract
The present invention provides a kind of without chlorine low melting point thermoplasticity gas generator propellant and preparation method thereof, includes the component of following quality proportioning：Oxidant：60~80%；Cooling agent：1~20%；Combustionregulator：1~3%；Low melting point ger-bond：5~10%；Auxiliary agent：1~5%；Plasticizer：1~10%.Thermoplasticity gas generator propellant prepared by the present invention does not contain metal dust, with relatively low combustion temperature, combustion gas is cleaned, overcome in existing gas generator propellant and a large amount of hydrogen chloride are produced in combustion product because causing using ammonium perchlorate, the deficiency of atmosphere pollution is caused, the thermoplasticity gas generator propellant can realize the melting mixing under lower temperature（<90℃）, greatly improve security prepared by thermoplastic propellant, it is possible to achieve the serialization of production and the repetition processing of waste product, reduce production cost.
Description
Technical field
Sent out the present invention relates to a kind of for gas generator and other gas generators without the combustion gas of chlorine low melting point thermoplasticity
Raw agent, belongs to composite solidpropellant field.
Background technology
Ammonium perchlorate（AP）Due to higher oxygen balance, wide material sources and it is cheap the advantages that, as sexual valence
Compare high oxidant, had a wide range of applications in gas generator propellant field, the mass fraction generally in gas generator propellant can
To reach 70% or so, but the gas generator propellant containing AP can produce substantial amounts of hydrogen chloride in combustion（HCl）Gas, row
The pollution of air can be caused by being put into air, be damaged the ozone layer, and be combined with the moisture in air, can produce acid mist or acid rain,
To the mankind and serious destruction is produced naturally, with the gradual enhancing of people's environmental consciousness, no chlorine gas generator propellant causes
The increasing research interest of researcher.
Compared with traditional thermosetting gas generator propellant, the thermoplasticity gas generator propellant using thermoplastic resin as adhesive has
There are excellent mechanical performance and the performance of repeatable processing, it is possible to achieve the serialization and zero percent defective of propellant production, from
And the production efficiency of propellant is improved, reduce the cost of propellant production.
There is relatively low ignition temperature without chlorine low melting point thermoplasticity gas generator propellant, do not have corrosive gas production in product
It is raw, it is possible to achieve the continuous production of gas generator propellant, to there is relatively low mixing temperature relative to conventional thermoplastic's gas generator propellant
Degree, can improve the intrinsic safety of production process, have extremely wide application prospect in gas generator, be to be worth deep
Enter a kind of novel gas propellant of research.
At present, deficiency existing for no chlorine low melting point thermoplasticity gas generator propellant is that energy level is relatively low, burning rate pressure exponent
It is slightly higher.
The content of the invention
There is relatively low combustion temperature, non-corrosiveness gas it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of
Body, it is possible to achieve the continuous production of gas generator propellant, the intrinsic safety for improving production process fire without chlorine low melting point thermoplasticity
Gas generating compositions.
The present invention also aims to provide the preparation method of above-mentioned no chlorine low melting point thermoplasticity gas generator propellant.
In addition to being described, the ratio used in the present invention is quality proportioning.
The technical solution adopted by the present invention is：It is a kind of without chlorine low melting point thermoplasticity gas generator propellant, including following component and
Mass percentage content：
Oxidant：60%~80%；
Cooling agent：1~20%；
Combustionregulator：1~3%；
Adhesive：5~10%；
Auxiliary agent：1~5%；
Plasticizer：1~10%；
The oxidant is modified ammonium nitrate.
Adhesive of the present invention is ethylene-vinyl acetate copolymer low melting point thermoplastic resin.
The preferred ingredient and mass percentage content of the present invention is as follows：
Oxidant：70%~75%；
Cooling agent：10%~15%；
Combustionregulator：1%~2%；；
Adhesive：8%~10%；
Auxiliary agent：2%~4%；
Plasticizer：4%~8%.
Cooling agent of the present invention is dihydroxy glyoxime, calcium carbonate, one kind in ammonium oxalate or its combination.
Combustionregulator of the present invention be chrome green, vanadic anhydride, di-iron trioxide, Kato it is pungent in one kind
Or its combination.
Thermoplastic adhesives of the present invention are ethylene-vinyl acetate copolymer low melting point thermoplastic resin（The trade mark
EVA420）, 73 ~ 78 DEG C of fusing point.
Auxiliary agent of the present invention be three [1 ,-（2- methylaziridines）] phosphine oxide, alcohol amine complex, silane coupler, aluminium
Acid esters coupling agent, N, one kind or its combination in N- diphenyl-para-phenylene diamines, carbon black.
Plasticizer of the present invention be di-n-octyl sebacate, ATEC, mineral oil, phthalic acid two just
One kind or its combination in butyl ester.
Preparation method of the present invention, it is characterised in that including following process：
（1）Oxidant, adhesive, plasticizer, auxiliary agent, cooling agent, combustionregulator are weighed according to the ratio；
（2）Adhesive is put into vertical mixer and heats melting, mixing temperature is 85 ~ 90 DEG C；
（3）Remaining component after weighing is put into vertical mixer and mixed, mixing temperature be 85 ~ 90 DEG C, incorporation time be 60 ~
110min, slurry is made；
（4）Slime vacuum spray is poured into mould or is poured into engine, is subsequently placed in coagulation forming at room temperature.
Low melting point thermoplastic resin is used for the adhesive of gas generator propellant by the present invention, realizes thermoplastic propellant compared with low temperature
Mixing under degree, the intrinsic safety of production process is improved, curing process is eliminated in process of producing product, shorten production week
Phase, production efficiency is improved, reduce production cost, using modified ammonium nitrate, solving easy hygroscopic component should in propellant
Problem, obtains the gas generator propellant formula without HCl gases in gas-fired products, and the gas generator propellant of preparation has wide
Application prospect.
The present invention compared with prior art the advantages of be：
（1）What is prepared has relatively low combustion temperature, non-corrosiveness gas without chlorine low melting point thermoplasticity gas generator propellant, it is possible to achieve combustion
The continuous production of gas generating compositions, realize zero percent defective of production.
（2）The mixing and shaping of thermoplasticity gas generator propellant at a lower temperature are realized, improves thermoplasticity combustion gas hair
The intrinsic safety of raw agent production process.
Embodiment
With reference to embodiment, the present invention is described in detail, but the present invention is not limited only to embodiment.
Embodiment 1
（1）Formed without chlorine low melting point thermoplasticity gas generator propellant
Oxidant（Modified ammonium nitrate）：70%；Cooling agent（Ammonium oxalate）：10%；Combustionregulator（Chrome green）：1%；Bonding
Agent（EVA420）：10%；Plasticizer（Di-n-octyl sebacate）：7%；Auxiliary agent（Three [1 ,-（2- methylaziridines）] phosphine oxide）：
0.3%；Auxiliary agent（Silane coupler）：0.2%；Auxiliary agent（N, N- diphenyl-para-phenylene diamine）：1.2%；Auxiliary agent（Carbon black）：0.3%
（2）Without chlorine low melting point thermoplasticity gas generator propellant performance
Specific impulse：1848.06 N*s/kg；Combustion temperature：938.47oC；Characteristic velocity：1067.14 m/s；Combustion gas mean molecule quantity：
21.8 g/mol；Fusing point：81.3 oC；Gas forming amount：1184.9 L/Kg；Residue content：2.4%；Pressure Exponent（3MPa~9MPa）：
0.48
Embodiment 2
（1）Formed without chlorine low melting point thermoplasticity gas generator propellant
Oxidant（Modified ammonium nitrate）：72%；Cooling agent（Dihydroxy glyoxime）：10%；Combustionregulator（Chrome green）：
0.5%；Combustionregulator（Vanadic anhydride）：1.5%；Adhesive（EVA420）：8%；Plasticizer（ATEC）：
6%；Auxiliary agent（Alcohol amine complex）：0.2%；Auxiliary agent（Aluminate coupling agent）：0.6%；Auxiliary agent（N, N- diphenyl-para-phenylene diamine）：
0.5%；Auxiliary agent（Carbon black）：0.7%
（2）Without chlorine low melting point thermoplasticity gas generator propellant performance
Specific impulse：1951.14 N*s/kg；Combustion temperature：1122.5oC；Characteristic velocity：1213.18 m/s；Combustion gas mean molecule quantity：
22.3 g/mol；Fusing point：82.1 oC；Gas forming amount：1152.0 L/Kg；Residue content：2.5%；Pressure Exponent（3MPa~9MPa）：
0.51
Embodiment 3
（1）Formed without chlorine low melting point thermoplasticity gas generator propellant
Oxidant（Modified ammonium nitrate）: 65%；Cooling agent（Dihydroxy glyoxime）：8%；Cooling agent（Calcium carbonate）：5%；Burning is adjusted
Save agent（Vanadic anhydride）：0.4%；Combustionregulator（Di-iron trioxide）：0.6%；Adhesive（EVA420）：9%；Plasticizer（Second
Acyl triethyl citrate）：6%；Plasticizer（Mineral oil）：2%；Auxiliary agent（Three [1 ,-（2- methylaziridines）] phosphine oxide）：0.4%；
Auxiliary agent（Aluminate coupling agent）：1.2%；Auxiliary agent（N, N- diphenyl-para-phenylene diamine）：1.8%；Auxiliary agent（Carbon black）：0.6%
（2）Without chlorine low melting point thermoplasticity gas generator propellant performance
Specific impulse：1746.92 N*s/kg；Combustion temperature：915.49oC；Characteristic velocity：1008.94 m/s；Combustion gas mean molecule quantity：
23.1 g/mol；Fusing point：82.5 oC；Gas forming amount：1072.5 L/Kg；Residue content：2.61%；Pressure Exponent（3MPa~9MPa）：
0.54
Embodiment 4
（1）Formed without chlorine low melting point thermoplasticity gas generator propellant
Oxidant（Modified ammonium nitrate）：62%；Cooling agent（Dihydroxy glyoxime）：4%；Cooling agent（Ammonium oxalate）：10%；Burning is adjusted
Save agent（Chrome green）：1%；Combustionregulator（Kato is pungent）：1%；Adhesive（EVA420）：10%；Plasticizer（Mineral oil）：
6%；Plasticizer（N-butyl phthalate）：4%；Auxiliary agent（Alcohol amine complex）：0.2%；Auxiliary agent（Silane coupler）：0.8%；
Auxiliary agent（N, N- diphenyl-para-phenylene diamine）：0.6%；Auxiliary agent（Carbon black）：0.4%
（2）Without chlorine low melting point thermoplasticity gas generator propellant performance
Specific impulse：1821.60 N*s/kg；Combustion temperature：912.25oC；Characteristic velocity：1031.63 m/s；Combustion gas mean molecule quantity：
24.0 g/mol；Fusing point：80.1 oC；Gas forming amount：1153.7 L/Kg；Residue content：2.72%；Pressure Exponent（3MPa~9MPa）：
0.55
It is described above, it is only the optimal embodiment of the present invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should
It is included within the scope of the present invention.
The content not being described in detail in description of the invention belongs to the known technology of professional and technical personnel in the field.
Claims (8)
1. one kind is without chlorine low melting point thermoplasticity gas generator propellant, it is characterised in that including following component and mass percentage content：
Oxidant：60%~80%；
Cooling agent：1~20%；
Combustionregulator：1~3%；
Adhesive：5~10%；
Auxiliary agent：1~5%；
Plasticizer：1~10%；
The oxidant is modified ammonium nitrate；
Described adhesive is ethylene-vinyl acetate copolymer.
2. one kind according to claim 1 is without chlorine low melting point thermoplasticity gas generator propellant, it is characterised in that：Including following excellent
Select component and mass percentage content：
Oxidant：70%~75%；
Cooling agent：10%~15%；
Combustionregulator：1%~2%；；
Adhesive：8%~10%；
Auxiliary agent：2%~4%；
Plasticizer：4%~8%.
3. one kind according to claim 1 or 2 is without chlorine low melting point thermoplasticity gas generator propellant, it is characterised in that：The drop
Warm agent is dihydroxy glyoxime, calcium carbonate, one kind in ammonium oxalate or its combination.
4. one kind according to claim 1 or 2 is without chlorine low melting point thermoplasticity gas generator propellant, it is characterised in that：The combustion
Burning conditioning agent be chrome green, vanadic anhydride, di-iron trioxide, Kato it is pungent in one kind or its combination.
5. one kind according to claim 1 or 2 is without chlorine low melting point thermoplasticity gas generator propellant, it is characterised in that：The second
Alkene-acetate ethylene copolymer is low melting point thermoplastic resin, 73 ~ 78 DEG C of fusing point.
6. one kind according to claim 1 or 2 is without chlorine low melting point thermoplasticity gas generator propellant, it is characterised in that：It is described to help
Agent be three [1 ,-（2- methylaziridines）] phosphine oxide, alcohol amine complex, silane coupler, aluminate coupling agent, N, N- diphenyl
One kind or its combination in p-phenylenediamine, carbon black.
7. one kind according to claim 1 or 2 is without chlorine low melting point thermoplasticity gas generator propellant, it is characterised in that：The increasing
Modeling agent is di-n-octyl sebacate, ATEC, mineral oil, one kind in n-butyl phthalate or its group
Close.
A kind of 8. preparation method of the no chlorine low melting point thermoplasticity gas generator propellant of claim 1 or 2, it is characterised in that including
Following process：
（1）Oxidant, adhesive, plasticizer, auxiliary agent, cooling agent, combustionregulator are weighed according to the ratio；
（2）Adhesive is put into vertical mixer and heats melting, mixing temperature is 85 ~ 90 DEG C；
（3）Remaining component after weighing is put into vertical mixer and mixed, mixing temperature be 85 ~ 90 DEG C, incorporation time be 60 ~
110min, slurry is made；
（4）Slime vacuum spray is poured into mould or is poured into engine, is subsequently placed in coagulation forming at room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (3)
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| CN108147932A (en) * | 2018-01-15 | 2018-06-12 | 湖北航天化学技术研究所 | A kind of no chlorine low melting point thermoplasticity gas generator propellant and preparation method thereof |
| CN109232144A (en) * | 2018-03-16 | 2019-01-18 | 湖北航天化学技术研究所 | A kind of rubber-type high-temperature metal particle propellant |
| CN110746251A (en) * | 2019-10-24 | 2020-02-04 | 湖北航天化学技术研究所 | Thermoplastic gas generating agent and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147932A (en) * | 2018-01-15 | 2018-06-12 | 湖北航天化学技术研究所 | A kind of no chlorine low melting point thermoplasticity gas generator propellant and preparation method thereof |
| CN108147932B (en) * | 2018-01-15 | 2020-09-18 | 湖北航天化学技术研究所 | Chlorine-free low-melting-point thermoplastic gas generating agent and preparation method thereof |
| CN109232144A (en) * | 2018-03-16 | 2019-01-18 | 湖北航天化学技术研究所 | A kind of rubber-type high-temperature metal particle propellant |
| CN109232144B (en) * | 2018-03-16 | 2021-02-12 | 湖北航天化学技术研究所 | Rubber type high-temperature metal particle generating agent |
| CN110746251A (en) * | 2019-10-24 | 2020-02-04 | 湖北航天化学技术研究所 | Thermoplastic gas generating agent and preparation method thereof |
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| CN107641065B (en) | 2018-09-18 |
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