CN100417631C - Safety gas pocket gas production medicine and its preparation method - Google Patents
Safety gas pocket gas production medicine and its preparation method Download PDFInfo
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- CN100417631C CN100417631C CNB2005100887247A CN200510088724A CN100417631C CN 100417631 C CN100417631 C CN 100417631C CN B2005100887247 A CNB2005100887247 A CN B2005100887247A CN 200510088724 A CN200510088724 A CN 200510088724A CN 100417631 C CN100417631 C CN 100417631C
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- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000003814 drug Substances 0.000 title claims description 54
- 238000004519 manufacturing process Methods 0.000 title 1
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 claims abstract description 80
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 30
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 30
- 239000002671 adjuvant Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 52
- 239000000203 mixture Substances 0.000 claims description 44
- 229940079593 drug Drugs 0.000 claims description 42
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 34
- GXGAKHNRMVGRPK-UHFFFAOYSA-N dimagnesium;dioxido-bis[[oxido(oxo)silyl]oxy]silane Chemical compound [Mg+2].[Mg+2].[O-][Si](=O)O[Si]([O-])([O-])O[Si]([O-])=O GXGAKHNRMVGRPK-UHFFFAOYSA-N 0.000 claims description 31
- 239000000391 magnesium silicate Substances 0.000 claims description 31
- 229940099273 magnesium trisilicate Drugs 0.000 claims description 31
- 229910000386 magnesium trisilicate Inorganic materials 0.000 claims description 31
- 235000019793 magnesium trisilicate Nutrition 0.000 claims description 31
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 28
- 239000012752 auxiliary agent Substances 0.000 claims description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 229910001963 alkali metal nitrate Inorganic materials 0.000 claims description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 17
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 17
- 235000010344 sodium nitrate Nutrition 0.000 claims description 17
- 239000004317 sodium nitrate Substances 0.000 claims description 17
- 229940001516 sodium nitrate Drugs 0.000 claims description 17
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 16
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 235000010333 potassium nitrate Nutrition 0.000 claims description 6
- 239000004323 potassium nitrate Substances 0.000 claims description 6
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 4
- 229960004643 cupric oxide Drugs 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 239000005083 Zinc sulfide Substances 0.000 claims description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 2
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 5
- 150000001340 alkali metals Chemical class 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 229910002651 NO3 Inorganic materials 0.000 abstract description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract description 2
- 150000001342 alkaline earth metals Chemical class 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 2
- 239000011733 molybdenum Substances 0.000 abstract description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 3
- 235000016768 molybdenum Nutrition 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 50
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 239000002245 particle Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 238000000498 ball milling Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 7
- 229960001866 silicon dioxide Drugs 0.000 description 7
- 235000012239 silicon dioxide Nutrition 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 150000001540 azides Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000010517 secondary reaction Methods 0.000 description 3
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- -1 alkali metal azide Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- OKJPEAGHQZHRQV-UHFFFAOYSA-N iodoform Chemical compound IC(I)I OKJPEAGHQZHRQV-UHFFFAOYSA-N 0.000 description 2
- 229910001960 metal nitrate Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- QPBYLOWPSRZOFX-UHFFFAOYSA-J tin(iv) iodide Chemical compound I[Sn](I)(I)I QPBYLOWPSRZOFX-UHFFFAOYSA-J 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910021542 Vanadium(IV) oxide Inorganic materials 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- COOGPNLGKIHLSK-UHFFFAOYSA-N aluminium sulfide Chemical compound [Al+3].[Al+3].[S-2].[S-2].[S-2] COOGPNLGKIHLSK-UHFFFAOYSA-N 0.000 description 1
- YDPLDMLRERBXAV-UHFFFAOYSA-N aluminum;triazide Chemical compound [Al+3].[N-]=[N+]=[N-].[N-]=[N+]=[N-].[N-]=[N+]=[N-] YDPLDMLRERBXAV-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- NNLOHLDVJGPUFR-UHFFFAOYSA-L calcium;3,4,5,6-tetrahydroxy-2-oxohexanoate Chemical compound [Ca+2].OCC(O)C(O)C(O)C(=O)C([O-])=O.OCC(O)C(O)C(O)C(=O)C([O-])=O NNLOHLDVJGPUFR-UHFFFAOYSA-L 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- JOHCVVJGGSABQY-UHFFFAOYSA-N carbon tetraiodide Chemical compound IC(I)(I)I JOHCVVJGGSABQY-UHFFFAOYSA-N 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- OMBRFUXPXNIUCZ-UHFFFAOYSA-N dioxidonitrogen(1+) Chemical compound O=[N+]=O OMBRFUXPXNIUCZ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- CKAPSXZOOQJIBF-UHFFFAOYSA-N hexachlorobenzene Chemical compound ClC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl CKAPSXZOOQJIBF-UHFFFAOYSA-N 0.000 description 1
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 description 1
- BQZGVMWPHXIKEQ-UHFFFAOYSA-L iron(ii) iodide Chemical compound [Fe+2].[I-].[I-] BQZGVMWPHXIKEQ-UHFFFAOYSA-L 0.000 description 1
- YADSGOSSYOOKMP-UHFFFAOYSA-N lead dioxide Inorganic materials O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 1
- GUWHRJQTTVADPB-UHFFFAOYSA-N lithium azide Chemical compound [Li+].[N-]=[N+]=[N-] GUWHRJQTTVADPB-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- RYFZYYUIAZYQLC-UHFFFAOYSA-N perchloromethyl mercaptan Chemical compound ClSC(Cl)(Cl)Cl RYFZYYUIAZYQLC-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- TZLVRPLSVNESQC-UHFFFAOYSA-N potassium azide Chemical compound [K+].[N-]=[N+]=[N-] TZLVRPLSVNESQC-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- IHBMMJGTJFPEQY-UHFFFAOYSA-N sulfanylidene(sulfanylidenestibanylsulfanyl)stibane Chemical compound S=[Sb]S[Sb]=S IHBMMJGTJFPEQY-UHFFFAOYSA-N 0.000 description 1
- AFNRRBXCCXDRPS-UHFFFAOYSA-N tin(ii) sulfide Chemical compound [Sn]=S AFNRRBXCCXDRPS-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- KOECRLKKXSXCPB-UHFFFAOYSA-K triiodobismuthane Chemical compound I[Bi](I)I KOECRLKKXSXCPB-UHFFFAOYSA-K 0.000 description 1
- GRUMUEUJTSXQOI-UHFFFAOYSA-N vanadium dioxide Chemical compound O=[V]=O GRUMUEUJTSXQOI-UHFFFAOYSA-N 0.000 description 1
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- Air Bags (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The present invention provides a kind of safety gas bag gas-producing chemicals and its preparation method. Said gas-producing chemicals contain sodium azide, in which said gas-producing chemicals also contain metal sulfite and/or metal oxide, nitrate of alkali metal and adjuvant. By using total weight of gas-producing chemicals as reference the content of sodium azide is 30-70 wt%, content of metal sulfite and/or metal oxide is 25-60 wt%, content of nitrate of alkali metal is 0.1-10 wt% and adjuvant content is 0.1-10 wt%. The described adjuvant is one or several kinds selected from oxide or sulfite of moly bdenum, oxide of aluminium and silicate of alkaline earth metal.
Description
Technical field
The present invention relates to a kind of gas generating powder that produces blast or advance usefulness gas, specifically, relate to gas generating powder of a kind of air bag and preparation method thereof.
Background technology
The air bag invention has been saved many people's life in decades, becomes the standardized component on the car gradually.Air bag is from inventing four more than ten years so far, and used gas generating powder always is with the sodiumazide to be the gas generating powder that main raw material makes, and sodiumazide is still the air bag gas generating powder of main flow at present.
Disclose a kind of method for preparing the porous gas producing medicinal as U.S. Pat 4758287, this method comprises the quantitative at least two kinds flammable raw materials that can rapid reaction generate gaseous substance and a kind of liquid dispersed agent mixed and forms slurries; Described slurries of flash drying and with the evaporation of described dispersion agent, and be prepared into the porous gas producing medicinal.Wherein said flammable raw material comprises alkali-metal trinitride and metal oxide at least.Described alkali-metal trinitride is sodiumazide, potassium azide, Lithium Azide or their mixture; Described metal oxide is ferric oxide, cupric oxide, manganese oxide, stannic oxide, titanium oxide, nickel oxide and their mixture; Described preparation method also comprises at least a oxygenant of further interpolation, and described oxygenant is basic cu nitrate, alkaline chlorate, alkaline perchlorate or their mixture.Described liquid dispersed agent comprises sodium silicate aqueous solution; Described liquid dispersed agent is an aliphatic hydrocarbon.The goal of the invention of this invention provides a kind of method for preparing the porous gas producing medicinal, to increase the combustion surfacearea of gas producing medicinal in reaction process.Adopt the method for above-mentioned patent disclosure to prepare gas-generating agent composition and have following shortcoming, since metal azide with described metal oxide and nitrate reaction after generated poisonous and unsettled oxide compounds such as nitrogen protoxide, carbon monoxide, if enough oxygen and higher temperature are arranged, then they are easy to continue to react generate stable materials such as nitrogen peroxide, carbonic acid gas, and this further reaction is called as secondary reaction.But often because secondary reaction is insufficient, make that the gas producing efficiency of gas generating powder is not high, and the amount ratio of gas generating powder is bigger, the producer gas generator volume of making is also bigger.
U.S. Pat 4836255 discloses a kind of safety airbag aerogenesis composition, and said composition comprises the alkali-metal trinitride of 65-74% weight; 10-28% weight ferric oxide, 5-16% weight nitric acid salt, the molybdenumdisulphide of the silicon-dioxide of 0.1-2% weight and 0-2% weight.The purpose of this invention is in order to improve the rate of combustion of gas-generating agent composition.The gas-generating agent composition of above-mentioned patent disclosure except same existence because above-mentioned because secondary reaction is insufficient, make beyond the not high shortcoming of the gas producing efficiency of gas generating powder, because the easy moisture absorption of silicon-dioxide, be difficult for flowing, with also be difficult for after the powder mixes of sodiumazide, nitrate and ferric oxide flowing, make that the free-running property of gas generating powder is relatively poor, the viscosity of gas generating powder is big; And silicon-dioxide hardness is too big, and mould damages very soon when causing pressing, and the cost of pressing is raise; Have, the adsorptivity of several compositions of this of above-mentioned prescription is bad, specific gravity difference is bigger again, and gas generating powder is easily layering in vibration, and the consistence of medicament is reduced, and therefore the chemical reaction of gas generating powder is insufficient in reaction process, causes factor of created gase not high.
U.S. Pat 3741585 discloses a kind of gas-generating agent composition that generates nitrogen, and the nitrogen temperature that said composition generates after burning is greatly about 200 °F-1000 °F; Said composition comprises the metal azide of 25-95% weight and the reactant of 1-75% weight, and described metal azide is selected from by an alkali metal azide, the group that an alkaline earth metal azide and aluminium azide are formed; Described reactant is selected from by molybdenumdisulphide, needle antimony, bismuth sulfide, Iron sulfuret, tin sulfide, curing calcium, aluminium sulfide; Bismuth triiodide, iron iodide, Tin tetraiodide, tetraiodo-methane, triiodomethane; Hexachloroethane, Perchlorobenzene, perchloro methyl-mercaptan; The group that molybdic oxide, three calcium oxide, plumbic oxide, vanadium dioxide and sulphur or their mixture are formed.The gas producing efficiency of the gas generating powder that above-mentioned patent provides is still not high.
Summary of the invention
The objective of the invention is to overcome the not high shortcoming of gas producing efficiency that has safety airbag aerogenesis drug now and high safety airbag aerogenesis drug of a kind of gas producing efficiency and preparation method thereof is provided.
The present inventor finds Magnesium Trisilicate, molybdenumdisulphide and aluminium sesquioxide can to improve a kind of combination in the factor of created gase, particularly Magnesium Trisilicate of gas generating powder or Magnesium Trisilicate and other two kinds or three kinds effectively unexpectedly, and results of use are better simultaneously.
Safety airbag aerogenesis drug provided by the invention contains sodiumazide, and wherein, this safety airbag aerogenesis drug also contains metallic sulfide and/or metal oxide, alkali-metal nitrate and auxiliary agent; With the gas generating powder gross weight is benchmark, and the content of sodiumazide is 30-70 weight %, and the content of metallic sulfide and/or metal oxide is 25-60 weight %, and the content of alkali-metal nitrate is 0.1-10 weight %, and the content of auxiliary agent is 0.1-10 weight %; Described auxiliary agent is selected from the oxide compound or the sulfide of molybdenum, the oxide compound of aluminium, one or more in the silicate of alkaline-earth metal.
The preparation method of described gas generating powder comprises sodiumazide, metallic sulfide and/or metal oxide, alkali-metal nitrate and auxiliary agent is mixed and grind, the consumption of each component makes in the safety airbag aerogenesis drug that obtains and contains, with the gas generating powder gross weight is that benchmark content is the sodiumazide of 30-70 weight %, content is metallic sulfide and/or the metal oxide of 25-60 weight %, content is the alkali-metal nitrate of 0.1-10 weight %, and content is the auxiliary agent of 0.1-10 weight %; Described auxiliary agent is selected from one or more in molybdenumdisulphide, aluminium sesquioxide and the Magnesium Trisilicate.
The factor of created gase of described gas generating powder is subjected to medicament free-running property and conforming the influence, and free-running property is meant the flowing property of medicament.Because the medicinal powder granularity of existing gas generating powder is very little, medicine grain surface viscosity is big, be difficult to when in the utensil of packing into, allowing it down leak naturally, being not easy nature flows, therefore its free-running property is poor, and the free-running property difference causes the explosive load in preparation process to be not easy control, and the tablet consistence of extrusion is poor, therefore the gas generating powder reaction is incomplete, insufficient in reaction process, causes factor of created gase not high.
The factor of created gase of safety airbag aerogenesis drug provided by the invention is compared with similar gas generating powder, and its factor of created gase improves greatly; The solid residue amount significantly reduces, and because the auxiliary agent described in the gas generating powder prescription provided by the invention does not have corrodibility and all very smooth and loose, make that the various components in the prescription are can thorough mixing even, be difficult for static, be difficult for the moisture absorption, make the mixed gas generating powder good fluidity that gets, make and in preparation process, measure easily and compression moulding, can satisfy the requirement of automatic filling and pressing; And make gas generating powder after burning, be easy to form loose big residue, make residue be difficult for ejection to absorb Mars.
Embodiment
According to gas generating powder provided by the invention, under the preferable case, gross weight with gas generating powder is a benchmark, the content of described sodiumazide is 45-60 weight %, the content of metallic sulfide and/or metal oxide is 35-50 weight %, the content of alkali-metal nitrate is 1.5-5 weight %, and the content of auxiliary agent is 0.5-6 weight %.
Auxiliary agent in the described gas generating powder prescription preferably adopts one or more in molybdenumdisulphide, aluminium sesquioxide and the Magnesium Trisilicate; More preferably adopt a kind of combination in Magnesium Trisilicate or Magnesium Trisilicate and other two kinds; More preferably adopt three kinds simultaneously; The weight ratio of described molybdenumdisulphide, aluminium sesquioxide, Magnesium Trisilicate is 1: 0.1-3: 0.1-3.Because molybdenumdisulphide, aluminium sesquioxide and Magnesium Trisilicate do not have corrodibility and all very smooth and loose, make the good fluidity of mixed gas generating powder, easy-formation; And aluminium sesquioxide can also play the effect of slag making, makes gas generating powder be easy to form loose big residue after burning, thereby and Magnesium Trisilicate can also make the residue loose easier absorption Mars that becomes, make residue be difficult for ejection.
Described metallic sulfide is selected from one or more in IB in the periodic table of elements, IIB, the VIIIB family metallic sulfide, as in Iron sulfuret, zinc sulphide, the cupric sulfide one or more, preferably adopts Iron sulfuret.
Described metal oxide is selected from one or more in IB in the periodic table of elements, IIB, the VIIIB family metal oxide, as in cupric oxide, zinc oxide, the ferric oxide one or more; Preferred ferric oxide and/or the zinc oxide of adopting.
Because metallic sulfide is easier and reaction of sodium azide than metal oxide, thereby make easier the carrying out of chemical reaction of gas generating powder, react more abundant, therefore, preferably adopt metallic sulfide.
Described alkali-metal nitrate is emitted oxygen as oxygenant in reaction, described alkali-metal nitrate is selected from one or more in saltpetre, SODIUMNITRATE, the lithium nitrate, preferably adopts saltpetre and/or SODIUMNITRATE.
The preparation method of described safety airbag aerogenesis drug comprises sodiumazide, metallic sulfide and/or metal oxide, alkali-metal nitrate and auxiliary agent is mixed and grind, the consumption of each component makes in the safety airbag aerogenesis drug that obtains and contains, with the gas generating powder gross weight is that benchmark content is the sodiumazide of 30-70 weight %, content is metallic sulfide and/or the metal oxide of 25-60 weight %, content is the alkali-metal nitrate of 0.1-10 weight %, and content is the auxiliary agent of 0.1-10 weight %; Under the preferable case, the preparation method of described safety airbag aerogenesis drug comprises the steps:
1) sodiumazide is mixed with the part of auxiliary agent and grind, obtain first mixture;
2) base metal nitrate is mixed with the other part of auxiliary agent and grind, obtain second mixture; The described the 1st) step is adjuvant used with the 2nd) adjuvant used weight ratio of step is 1: 1-1: 2.
3) metallic sulfide and/or metal oxide are ground;
4) metallic sulfide and/or metal oxide and described first mixture and second mixture of step 3) gained through grinding mixed, and the gained mixture is continued to grind.
According to the preparation method of gas generating powder provided by the invention, wherein, the median size of first mixture that obtains in the described step 1) is the 15-40 micron, is preferably the 15-20 micron; The median size of second mixture that obtains described step 2) is the 15-40 micron, is preferably the 15-20 micron; The metallic sulfide after the grinding that obtains in the described step 3) and/or the median size of metal oxide are the 4-20 micron, are preferably the 10-20 micron; The median size of the mixture after grinding that described step 4) obtains is the 4-20 micron, is preferably the 10-20 micron.
According to preparation method provided by the invention, before mixing, the water content of sodiumazide, metallic sulfide and/or metal oxide, alkali-metal nitrate is smaller or equal to 0.15 weight % in the described gas generating powder.
Described abrasive method adopts the method for ball milling, grinding or comminution by gas stream.
The preparation method of described gas generating powder also comprises the step of moulding, and the method for described moulding is with compression moulding behind the mixture pelleting after grinding, and is pressed into required arbitrary shape such as sheet or ring-type.
To the present invention be described in more detail by specific embodiment below.
Embodiment 1
Present embodiment is used for preparing safety airbag aerogenesis drug provided by the invention
At 70 ℃, sodiumazide, SODIUMNITRATE, Iron sulfuret were dried in baking oven 2 hours, make its moisture content be not more than 0.15%.
To put into the levigate mean particle size to mixture of ball mill be 15 microns after the mixed that sodiumazide and aluminium sesquioxide, the Magnesium Trisilicate of oven dry is 58: 0.2: 0.2 by weight.
To put into the levigate mean particle size to mixture of ball mill be 15 microns after the mixed that SODIUMNITRATE and aluminium sesquioxide, the Magnesium Trisilicate of oven dry is 3: 0.2: 0.2 by weight.
With Iron sulfuret put into ball mill levigate to mean particle size be 15 microns.
The mixture of the Iron sulfuret that above ball milling is obtained, the mixture of sodiumazide, SODIUMNITRATE is 38: 58: 4 the mixed ball mill grinding of packing into by weight.The ball milling time is 1 hour, levigate to mean particle size be 10 microns.Then, in 70 ℃ baking oven, dry to water content and be not more than 0.2%.
With adding a small amount of alcohol in the mixing medicine after the oven dry, the medicinal powder wet mixing is agglomerating, and put into the tablets press granulation.
Will make the medicinal powder of grain, in temperature is 70 ℃ baking oven, dry to water content and be not more than 0.2%.
After the medicine grain oven dry, put into that tabletting machine is pressed into needed sheet or ring-type can be used.
The safety airbag aerogenesis drug for preparing according to the described method of present embodiment is a benchmark with its gross weight, the content of sodiumazide is 57.61% in this gas generating powder, the content of Iron sulfuret is 38.00%, the content of SODIUMNITRATE is 3.53%, the content of aluminium sesquioxide is 0.43%, and the content of Magnesium Trisilicate is 0.43%.
Embodiment 2
Present embodiment is used for preparing safety airbag aerogenesis drug provided by the invention
At 70 ℃, sodiumazide, SODIUMNITRATE, ferric oxide were dried in baking oven 2 hours, make its moisture content be not more than 0.15%.
To put into the levigate mean particle size to mixture of ball mill be 20 microns after the mixed that the sodiumazide and the Magnesium Trisilicate of oven dry is 58: 2 by weight.
To put into the levigate mean particle size to mixture of ball mill be 20 microns after the mixed that the SODIUMNITRATE and the Magnesium Trisilicate of oven dry is 38: 2 by weight.
With ferric oxide put into ball mill levigate to mean particle size be 15 microns.
Ferric oxide, sodiumazide mixture, the sodium nitrate mixture that above ball milling is obtained is 37: 58: 5 the mixed ball mill grinding of packing into by weight.The ball milling time is 1 hour, levigate to mean particle size be 10 microns.Then, in 70 ℃ baking oven, dry to water content and be not more than 0.2%.
With adding a small amount of alcohol in the mixing medicine after the oven dry, the medicinal powder wet mixing is agglomerating, and put into the tablets press granulation.
Will make the medicinal powder of grain, in temperature is 70 ℃ baking oven, dry to water content and be not more than 0.2%.
After the medicine grain oven dry, put into that tabletting machine is pressed into needed sheet or ring-type can be used.
The safety airbag aerogenesis drug for preparing according to the described method of present embodiment is a benchmark with its gross weight, the content of sodiumazide is 56.07% weight in this gas generating powder, the content of ferric oxide is 37.00% weight, the content of SODIUMNITRATE is 4.75% weight, and the content of Magnesium Trisilicate is 2.18% weight.
Comparative Examples 1
This Comparative Examples is used for preparing the reference safety airbag aerogenesis drug
Method according to embodiment 2 prepares safety airbag aerogenesis drug, and different is to use the silicon-dioxide of equivalent to replace Magnesium Trisilicate, obtains the reference safety airbag aerogenesis drug.
With reference safety airbag aerogenesis drug gross weight is benchmark, and the content of sodiumazide is 56.07% in this reference safety airbag aerogenesis drug, and the content of ferric oxide is 37.00%, and the content of SODIUMNITRATE is 4.75%, and the content of silicon-dioxide is 2.18%.
Embodiment 3
Present embodiment is used for preparing safety airbag aerogenesis drug provided by the invention
At 70 ℃, sodiumazide, SODIUMNITRATE, ferric oxide were dried in baking oven 2 hours, make its moisture content be not more than 0.15%.
Putting into the levigate mean particle size to mixture of ball mill after the mixed that sodiumazide and molybdenumdisulphide and the Magnesium Trisilicate of oven dry is 58: 2: 2 by weight is 20 microns.
Putting into the levigate mean particle size to mixture of ball mill after the mixed that SODIUMNITRATE and aluminium sesquioxide and the Magnesium Trisilicate of oven dry is 38: 2: 2 by weight is 20 microns.
With ferric oxide put into ball mill levigate to mean particle size be 10 microns.
Ferric oxide, sodiumazide mixture, the sodium nitrate mixture that above ball milling is obtained is 40: 55: 5 the mixed ball mill grinding of packing into by weight.The ball milling time is 1 hour, levigate to mean particle size be 10 microns.Then, in 70 ℃ baking oven, dry to the water yield and be not more than 0.2%.
With adding a small amount of alcohol in the mixing medicine of oven dry, the medicinal powder wet mixing is agglomerating, and put into the tablets press granulation.
Will make the medicinal powder of grain, in temperature is 70 ℃ baking oven, dry to water content and be not more than 0.2%.After the medicine grain oven dry, put into that tabletting machine is pressed into needed sheet or ring-type can be used.
The safety airbag aerogenesis drug for preparing according to the described method of present embodiment is a benchmark with its gross weight, the content of sodiumazide is 51.45% weight in this safety airbag aerogenesis drug, the content of ferric oxide is 40.00% weight, the content of SODIUMNITRATE is 4.52% weight, the content of molybdenumdisulphide is 1.77% weight, the content of Magnesium Trisilicate is 2.02% weight, and the content of aluminium sesquioxide is 0.24%.
Comparative Examples 2
This Comparative Examples is used for preparing the reference safety airbag aerogenesis drug
Method according to embodiment 3 prepares safety airbag aerogenesis drug, and different is to use the silicon-dioxide of equivalent to replace Magnesium Trisilicate and aluminium sesquioxide, obtains the reference safety airbag aerogenesis drug.
With reference safety airbag aerogenesis drug gross weight is benchmark, the content of sodiumazide is 51.45% in this reference safety airbag aerogenesis drug, and the content of ferric oxide is 40.00%, and the content of SODIUMNITRATE is 4.52%, the content of molybdenumdisulphide is 1.77% weight, and the content of silicon-dioxide is 2.26%.
Embodiment 4
Present embodiment is used for preparing safety airbag aerogenesis drug provided by the invention
In 75 ℃ baking oven, sodiumazide, saltpetre, Iron sulfuret were dried 4 hours, make its moisture content be not more than 0.15%.
Is 48: 2: 46 with sodiumazide, saltpetre, Iron sulfuret and aluminium sesquioxide, Magnesium Trisilicate and the molybdenumdisulphide of oven dry according to weight ratio: it is 20 microns that 0.5: 2.5: 1 mixed is put into the levigate mean particle size to mixture of ball mill together.
Add a small amount of alcohol in the mixture that behind above-mentioned ball milling, obtains, its wet mixing is agglomerating, and put into the tablets press granulation.
The medicinal powder of making grain dried in temperature is 70 ℃ baking oven to water content be not more than 0.2%.
After the medicine grain oven dry, put into that tabletting machine is pressed into needed sheet or ring-type can be used.
The safety airbag aerogenesis drug for preparing according to the described method of present embodiment is a benchmark with its gross weight, the content of sodiumazide is 48.0% weight in this gas generating powder, the content of saltpetre is 2.00% weight, the content of Iron sulfuret is 46.0% weight, the content of molybdenumdisulphide is 1.0% weight, the content of Magnesium Trisilicate is 2.5% weight, and the content of aluminium sesquioxide is 0.5% weight.
Embodiment 5
Present embodiment is used for illustrating the performance of safety airbag aerogenesis drug provided by the invention
The gas generating powder 71-72 gram that respectively embodiment 1-4 and Comparative Examples 1, Comparative Examples 2 is prepared is packed in the air bag generator housing, and the pressure measurement of lighting a fire in 60 liters encloses container is surveyed 10 for every kind, and the average peak pressure of gained is as shown in table 1.
Table 1
| The embodiment numbering | Embodiment 1 | Embodiment 2 | Comparative Examples 1 | Embodiment 3 | Comparative Examples 2 | Embodiment 4 |
| 10 average peak pressure | 0.20 MPa | 0.17 MPa | 0.14 MPa | 0.25 MPa | 0.15 MPa | 0.24 MPa |
As can be seen from Table 1, in same container, the average peak pressure of the embodiment 1-4 that records under the identical condition is apparently higher than Comparative Examples 1 and Comparative Examples 2, and this factor of created gase that safety airbag aerogenesis drug provided by the invention is described is apparently higher than existing safety airbag aerogenesis drug.
Claims (12)
1. a safety airbag aerogenesis drug contains sodiumazide, and wherein, this safety airbag aerogenesis drug also contains metallic sulfide and/or metal oxide, alkali-metal nitrate and auxiliary agent; With the gas generating powder gross weight is benchmark, the content of sodiumazide is 30-70 weight % in the described gas generating powder, the content of metallic sulfide and/or metal oxide is 25-60 weight %, the content of alkali-metal nitrate is 0.1-10 weight %, the content of auxiliary agent is 0.1-10 weight %, and described auxiliary agent is one or more and the Magnesium Trisilicate in the oxide compound of Magnesium Trisilicate or molybdenumdisulphide and aluminium.
2. safety airbag aerogenesis drug according to claim 1, wherein, gross weight with gas generating powder is a benchmark, the content of described sodiumazide is 45-60 weight %, the content 35-50 weight % of metallic sulfide and/or metal oxide, the content of alkali-metal nitrate is 1.5-5 weight %, and the content of auxiliary agent is 0.5-6 weight %.
3. safety airbag aerogenesis drug according to claim 1 and 2, wherein, described auxiliary agent is one or both and the Magnesium Trisilicate in Magnesium Trisilicate or molybdenumdisulphide and the aluminium sesquioxide.
4. safety airbag aerogenesis drug according to claim 3, wherein, described auxiliary agent is molybdenumdisulphide, aluminium sesquioxide and Magnesium Trisilicate, the weight ratio of molybdenumdisulphide, aluminium sesquioxide and Magnesium Trisilicate is 1: 0.1-3: 0.1-3.
5. safety airbag aerogenesis drug according to claim 1, wherein, described metallic sulfide is selected from one or more in the sulfide of IB in the periodic table of elements, IIB, VIIIB family metal; Described metal oxide is selected from one or more in the oxide compound of IB in the periodic table of elements, IIB, VIIIB family metal.
6. safety airbag aerogenesis drug according to claim 5, wherein said metallic sulfide is selected from one or more in Iron sulfuret, zinc sulphide, the cupric sulfide; Described metal oxide is selected from one or more in cupric oxide, zinc oxide, the ferric oxide.
7. safety airbag aerogenesis drug according to claim 1 and 2, wherein, described alkali-metal nitrate is selected from one or more in saltpetre, SODIUMNITRATE, the lithium nitrate.
8. the preparation method of the described safety airbag aerogenesis drug of claim 1, this method comprises sodiumazide, metallic sulfide and/or metal oxide, alkali-metal nitrate and auxiliary agent is mixed and grind, the consumption of each component makes in the safety airbag aerogenesis drug that obtains and contains, with the gas generating powder gross weight is that benchmark content is the sodiumazide of 30-70 weight %, content is metallic sulfide and/or the metal oxide of 25-60 weight %, content is the alkali-metal nitrate of 0.1-10 weight %, and content is the auxiliary agent of 0.1-10 weight %; Described auxiliary agent is one or more and the Magnesium Trisilicate in the oxide compound of Magnesium Trisilicate or molybdenumdisulphide and aluminium.
9. preparation method according to claim 8, wherein, before mixing, the water content of sodiumazide, metallic sulfide and/or metal oxide, alkali-metal nitrate is smaller or equal to 0.15 weight % in the described gas generating powder.
10. preparation method according to claim 8, this method comprises the steps:
1) sodiumazide is mixed with the part of auxiliary agent and grind, obtain first mixture;
2) alkali-metal nitrate is mixed with the other part of auxiliary agent and grind, obtain second mixture;
3) metallic sulfide and/or metal oxide are ground;
4) metallic sulfide and/or metal oxide and described first mixture and second mixture of step 3) gained through grinding mixed, and the gained mixture is continued to grind.
The 11. preparation method according to claim 10, wherein, the 1st) step is adjuvant used with the 2nd) adjuvant used weight ratio of step is 1: 1-1: 2.
12. preparation method according to claim 10, wherein, the median size of first mixture that obtains in the described step 1) is the 15-40 micron; The median size of second mixture that obtains described step 2) is the 15-40 micron; The metallic sulfide after grinding that obtains in the described step 3) and/or the median size of metal oxide are the 4-20 micron; The median size of the mixture after grinding that described step 4) obtains is the 4-20 micron.
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| CN108871111B (en) * | 2018-07-16 | 2020-05-26 | 湖北三江航天红林探控有限公司 | Large-diameter-length-ratio powder charging structure and powder charging method |
| CN114289926B (en) * | 2022-03-07 | 2022-05-31 | 北京奥邦新材料有限公司 | High-niobium flux-cored wire for repairing hard surface of roller press and preparation method thereof |
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| JPS5071594A (en) * | 1973-07-23 | 1975-06-13 | ||
| US4758287A (en) * | 1987-06-15 | 1988-07-19 | Talley Industries, Inc. | Porous propellant grain and method of making same |
| US4836255A (en) * | 1988-02-19 | 1989-06-06 | Morton Thiokol, Inc. | Azide gas generant formulations |
| EP0678492A1 (en) * | 1994-04-18 | 1995-10-25 | Morton International, Inc. | Gas generant compositions with alkali oxide scavengers |
| US6166094A (en) * | 1999-03-26 | 2000-12-26 | Mauk; Jeffrey L. | Blowing agent and method for producing foamed polymers and related compositions |
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2005
- 2005-07-29 CN CNB2005100887247A patent/CN100417631C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5071594A (en) * | 1973-07-23 | 1975-06-13 | ||
| US4758287A (en) * | 1987-06-15 | 1988-07-19 | Talley Industries, Inc. | Porous propellant grain and method of making same |
| US4836255A (en) * | 1988-02-19 | 1989-06-06 | Morton Thiokol, Inc. | Azide gas generant formulations |
| EP0678492A1 (en) * | 1994-04-18 | 1995-10-25 | Morton International, Inc. | Gas generant compositions with alkali oxide scavengers |
| US6166094A (en) * | 1999-03-26 | 2000-12-26 | Mauk; Jeffrey L. | Blowing agent and method for producing foamed polymers and related compositions |
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