CN117655335A - Combustible foil for non-point source type infrared interference bomb and preparation method thereof - Google Patents
Combustible foil for non-point source type infrared interference bomb and preparation method thereof Download PDFInfo
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- CN117655335A CN117655335A CN202311606003.5A CN202311606003A CN117655335A CN 117655335 A CN117655335 A CN 117655335A CN 202311606003 A CN202311606003 A CN 202311606003A CN 117655335 A CN117655335 A CN 117655335A
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- Prior art keywords
- foil
- silicate
- combustible
- adhesive
- agent
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- 239000011888 foil Substances 0.000 title claims abstract description 114
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 71
- 238000002485 combustion reaction Methods 0.000 claims abstract description 56
- 230000001070 adhesive effect Effects 0.000 claims abstract description 54
- 239000000853 adhesive Substances 0.000 claims abstract description 53
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000012298 atmosphere Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 70
- 239000000956 alloy Substances 0.000 claims description 70
- 239000000843 powder Substances 0.000 claims description 62
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 229910000838 Al alloy Inorganic materials 0.000 claims description 42
- 239000002002 slurry Substances 0.000 claims description 35
- 230000004913 activation Effects 0.000 claims description 32
- 239000004115 Sodium Silicate Substances 0.000 claims description 31
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 31
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 31
- 238000002156 mixing Methods 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 29
- 239000000243 solution Substances 0.000 claims description 28
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims description 27
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 20
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 20
- 239000007858 starting material Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 239000003623 enhancer Substances 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 13
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims description 12
- 239000004111 Potassium silicate Substances 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 10
- 239000011777 magnesium Substances 0.000 claims description 10
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 10
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- 229910052749 magnesium Inorganic materials 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 5
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000001923 methylcellulose Substances 0.000 claims description 5
- 235000010981 methylcellulose Nutrition 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000010907 mechanical stirring Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000002269 spontaneous effect Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 229920002449 FKM Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H11/00—Defence installations; Defence devices
- F41H11/02—Anti-aircraft or anti-guided missile or anti-torpedo defence installations or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/105—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/107—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing organic material comprising solvents, e.g. for slip casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
- B22F2007/042—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal characterised by the layer forming method
- B22F2007/047—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal characterised by the layer forming method non-pressurised baking of the paste or slurry containing metal powder
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to an infrared interference technology, in particular to a flammable foil for a non-point source type infrared interference bomb and a preparation method thereof. In order to solve the defects that production materials and processes in the process of producing equipment baits in the prior art are extremely dangerous and unfavorable for environmental protection, and meanwhile, the obtained baits are short in burning time and low in burning temperature, the combustible foil can be rapidly spontaneous-ignited in air, the heat radiation temperature can reach more than 1300K, and when the combustible foil is manufactured, the combustible agent and the combustion agent are coated on the metal foil through the adhesive and then activated, so that the combustible foil is obtained and then stored in an inert atmosphere glove box for subsequent use.
Description
Technical Field
The invention relates to an infrared interference technology, in particular to a flammable foil for a non-point source type infrared interference bomb and a preparation method thereof.
Background
With the continuous development of modern photoelectron technologies such as infrared imaging and spectrum identification, the rapid development and perfection of novel infrared detection and infrared guidance technologies are promoted, and the infrared guided missile gradually shows the special advantages and huge combat power. The hit rate and the hit force of the guided weapons on the preset targets are greatly improved, and in modern warfare, fighter planes, ships, armored vehicles, other ground works and the like are possibly severely threatened by the accurate guided weapons, and the infrared guided missiles become the most threatening 'enemies' of fighter facility equipment such as fighter planes, ships and the like. In the face of the severe situation faced by the survival of military targets in modern battlefields, the passive interference technology that the profiling baits are used as false targets to interfere with the detection and guidance of enemy is increasingly paid attention to, and it can be expected that future infrared baits must pertinently adopt advanced countermeasure technology and continuously update.
The infrared jamming bomb material has very important function as equipment bait, and can be used for covering the path of fighter weapons such as aircraft and the like passing through a specific area to disperse air fire resistance and prevent air fire attack. The traditional point source type infrared jamming bomb material is an infrared pyrotechnic agent composed of magnesium (Mg), polytetrafluoroethylene (PTFE) and fluororubber (Viton), and the current method for producing the magnesium-polytetrafluoroethylene mixture needs to use solvents which are more pollution to the environment and are inflammable. As in the known method, the mixture is prepared by depositing the binder on the mixture by solvent evaporation using acetone or methyl ethyl ketone, drying the mixture, and curing by pressing or extrusion, and acetone and methyl ethyl ketone are flammable, so that the materials used and the production process are extremely dangerous and environmentally friendly. In addition, in practical application, the infrared jamming bomb material needs to have the characteristics of quick combustion response time, meeting the requirements on combustion temperature and time and the like, and most point source infrared jamming bomb materials have short combustion time and low combustion temperature and cannot meet the practical requirements.
While germany has earlier invented a combustible foil bomb that produces high intensity infrared radiation to interfere with an incoming infrared guided missile and deflect it from the target. The disturbing bullet is made by coating polyvinyl chloride glue, dioctyl phthalate softener, inflammable agent and dispersant on thin paper or metal foil, wherein the inflammable agent is magnesium powder, aluminum powder or red phosphorus powder. U.S. Pat. No. 4624186 describes a composite interference material, which uses a metal foil as a substrate, presses a layer of burning paste on the surface of the metal foil, and controls the burning speed by adjusting the amount of the combustible material in the paste, so as to simultaneously have interference effect on infrared rays and millimeter waves; U.S. patent No. 6013144 describes another composite material having carbon fibers as a substrate and a substantially pyrophoric coating deposited on the surface thereof by vapor deposition. The spontaneous combustion coating can provide infrared radiation in the continuous combustion process, and the intensity and wavelength of the infrared radiation are changed by adjusting the composition of the formula, so that the material is a bait material with high controllability; U.S. patent No. 6193814B1 describes a novel process for forming a pyrophoric composite material upon heating to 700-900 ℃ under oxygen-barrier conditions using tin-plated tin-plate as a substrate, and plating the surface with an active metal coating.
It can be seen from this that the production and processing of the directly used raw materials capable of spontaneous combustion in the air in the prior art results in complex production process and dangerous processing process. Therefore, there is a need for development of bait materials that are less dangerous, environmentally friendly, and capable of having both long burn times and high burn temperatures.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, production materials and processes in the process of producing equipment baits are extremely dangerous and unfavorable for environmental protection, and meanwhile, the obtained baits are short in burning time and low in burning temperature.
Inventive concept
The research shows that the combustible foil is a new generation of interference material for realizing the countermeasure of infrared source at present, and can be spontaneously ignited in the air, and according to the actual requirement of the non-point source type infrared decoy bullet, the invention develops the combustible foil with the heat radiation temperature of more than 1300K and the ignition time of less than or equal to 1.0s, and is suitable for the assembly requirement of the infrared interference bullet.
In order to achieve the above object, the technical solution provided by the present invention is as follows.
The combustible foil for the non-point source type infrared jamming bomb is characterized in that: the flame retardant coating comprises a metal foil and a mixture coated on the surface of the metal foil, wherein the mixture comprises an adhesive, a primer and a combustion agent; the adhesive comprises silicate; the ignition agent is a material capable of self-ignition in air.
Further, the ignition agent is formed by activating nickel-aluminum alloy or iron-aluminum alloy through a strong alkali solution, wherein the aluminum content in the nickel-aluminum alloy or the iron-aluminum alloy is 30-60 wt%; the mass ratio of the nickel-aluminum alloy/iron-aluminum alloy to the combustion agent is 1 (0.1-0.5). The aluminum content in the nickel-aluminum alloy or the iron-aluminum alloy is too small, so that the formed ignition agent has too little heat release and cannot be ignited; when the aluminum content is too high, the adhesive sodium silicate or methyl silicate is strong alkali weak acid salt, and the adhesive sodium silicate or methyl silicate reacts to generate gas, so that the sizing material is jelly-shaped and cannot be coated.
Further, the adhesive further comprises a viscosity enhancer, wherein the viscosity enhancer is one or more of sodium tripolyphosphate, polyvinyl alcohol, hydroxyethyl cellulose, methyl cellulose and the like; the silicate is one or two of sodium silicate and/or potassium silicate, and the modulus of the silicate is 2.0-3.4; the combustion agent comprises alloy powder composed of one or more of magnesium, zinc, titanium and boron, wherein the impurity content is less than 20% of the total mass. The modulus of silicate is preferably 2.0-3.4, and is too high, which can lead to too high viscosity of the adhesive, difficult to be coated on a metal foil, too low modulus, too high alkalinity of sodium silicate or potassium silicate, easy reaction with ferroaluminum alloy, and reduced viscosity of the adhesive. The viscosity enhancer is used for improving the viscosity of the adhesive and improving the stability of the combustible foil.
Further, the ignition agent is formed by activating an iron-aluminum alloy through a NaOH solution, and the combustion agent is magnesium; the adhesive is sodium silicate, and the viscosity enhancer is sodium tripolyphosphate.
Meanwhile, the invention also provides a preparation method of the flammable foil for the non-point source type infrared jamming bomb, which comprises the following steps:
step 1) preparing alloy slurry
Uniformly mixing the adhesive and the energy-containing alloy powder to obtain alloy slurry; the adhesive is silicate aqueous solution, and the energetic alloy powder comprises an ignition agent raw material and a combustion agent;
step 2) coating and baking
Step 2.1), uniformly coating the energy-containing slurry obtained in the step 1) on the surface of a metal foil, and drying to remove the moisture of the energy-containing slurry;
step 2.2) roasting the metal foil under the inert atmosphere condition, and cooling to room temperature for standby;
and 3) immersing the metal foil obtained in the step 2) in a strong alkali solution to activate the starting material of the ignition agent to form the ignition agent, taking out the ignition agent after activation, washing with water, and carrying out vacuum drying to obtain a combustible foil, and storing the combustible foil in an inert atmosphere glove box.
Further, in the step 2.1), the drying temperature is less than or equal to 60 ℃ and the drying time is less than or equal to 1h; cutting the metal foil according to different requirements after drying; in the step 2.2), the roasting temperature is 400-700 ℃, the roasting time is 10-60 min, and the roasting atmosphere is nitrogen. Wherein, the roasting temperature is too low, the silicate is not foamed sufficiently, and the adhesiveness of the alloy powder containing energy cannot meet the requirement; the high sintering temperature can cause the surface layer of the energy-containing alloy powder on the metal foil to flake off due to high-temperature sintering, so that the effect is better at 400-700 ℃.
Further, the step 1) specifically comprises:
step 1.1) dissolving silicate, or silicate and viscosity enhancer, in water to prepare an aqueous silicate solution with a mass concentration of 20-30 wt.% as an adhesive; the silicate is one or two of sodium silicate or potassium silicate, and the modulus of the sodium silicate or the potassium silicate is 2.0-3.4; the viscosity enhancer is one or more of sodium tripolyphosphate, polyvinyl alcohol, hydroxyethyl cellulose, methyl cellulose and the like, and the ratio of the viscosity enhancer in the adhesive is 0.5-1.0 wt.%;
step 1.2), weighing and mixing the ignition agent raw material and the combustion agent to prepare energetic alloy powder with the mass ratio of the ignition agent raw material to the combustion agent of 1 (0.1-0.5);
step 1.3) uniformly mixing the adhesive and the energetic alloy powder to obtain alloy slurry with the solid content of 50-80 wt.%, wherein the solid content refers to the mass ratio of the energetic alloy powder to the alloy slurry.
Further, in the step 1.2), the starting material of the ignition agent is nickel-aluminum alloy or iron-aluminum alloy powder, the granularity is less than or equal to 90 mu m, and the aluminum accounts for 30-60 wt%; the combustion agent comprises alloy powder composed of one or more of magnesium, zinc, titanium and boron, the granularity is less than or equal to 90 mu m, and the impurity content is less than 20% of the total mass.
Further, in the step 3), the strong alkali solution is a NaOH solution with the weight percent of 20-40, the activation time is 10-30 min, and the activation temperature is 50-100 ℃; the vacuum drying temperature is 150-300 ℃ and the drying time is 0.5-3.0 h. The strong alkali solution can also be potassium hydroxide or other strong alkali solutions.
Further, in step 1.1), the silicate is sodium silicate, the viscosity enhancer is sodium tripolyphosphate, the proportion of the sodium tripolyphosphate in the adhesive is 1.0wt.%, and 25wt.% of sodium silicate aqueous solution is prepared;
in the step 1.2), the starting material of the ignition agent is an iron-aluminum alloy, wherein the mass ratio of aluminum is 50 wt%, the combustion agent is magnesium, and the mass ratio of the starting material of the ignition agent to the combustion agent is 1:0.25;
in step 1.3), the solids content is 60wt.%;
in the step 2.2), the inert atmosphere is nitrogen atmosphere, the roasting temperature is 600 ℃, and the roasting time is 30min;
in the step 3), the mass concentration of the NaOH solution is 30%, the activation time is 20min, the inert atmosphere is nitrogen or helium, and the oxygen content and the water content in the inert atmosphere glove box are not more than 100ppm. The concentration of the NaOH solution, the activation time and the activation temperature are matched with each other to perform the activation reaction, so that a good activation effect can be achieved, and if the concentration of the NaOH solution is too high, the activation temperature is too high and the activation time is too long, the activation reaction is excessive, so that the ignition agent and the combustion agent fall off; the concentration of NaOH solution is small, the time is short and/or the temperature is low, the activation reaction is insufficient, the ignition agent generated by activation may be insufficient, and the ignition effect cannot meet the requirement.
Compared with the prior art, the invention has the following beneficial effects:
1. the combustible foil prepared by the invention creatively provides the inventive concept of a dual-component system of an ignition agent and a combustion agent, so that the combustible foil can be rapidly oxidized and released to generate spontaneous combustion when meeting air, and meets the requirement of rapid ignition of an infrared bait material.
2. The combustion agent of the invention introduces the energetic metal powder, so that the prepared combustible foil has good combustion ignition characteristic, can provide more ideal infrared radiation energy, has only slight spark or no spark burst in the combustion process, and meets the requirements of cold light combustion.
3. The invention fully utilizes the alloy components of the starting material of the ignition agent to form porous nickel or porous iron which has quick reaction capability after being activated by strong alkali solution, and the ignition agent and the combustion agent prepared by specific proportion are matched, so that the ignition can be quickly ignited, and the duration time and the combustion temperature of combustion can be ensured.
4. The invention makes full use of the promotion effect of the viscosity enhancer in the adhesive, so that the prepared combustible foil has strong adhesion between the energetic metal powder and the foil and excellent use durability.
5. The preparation method provided by the invention adopts a simpler and more convenient coating activation method, is a preparation process with strong operability, high practicability and ideal action effect, and has very wide popularization and application prospects. The adhesive and the energetic alloy powder are mixed and coated on the metal foil, and then the ignition agent is obtained through activation, so that the processing step before activation does not contain flammable materials, and the processing process is safe and environment-friendly.
6. In the present invention, the particle size of the starting material for the ignition agent and the particle size of the combustion agent are further limited, and the particle size range is preferably 90 μm or less, so that the combustion speed is further improved.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a graph showing the particle size distribution of the starting material iron-aluminum alloy for the ignitors in examples 1-4 of the present invention;
FIG. 3 is a graph showing the light-off-combustion performance of the combustible foils of examples 1-4 of the present invention;
FIG. 4 is a graph showing the light-off-burning performance of the combustible foils of example 1 and comparative examples 1-2 of the present invention;
FIG. 5 is an SEM image of a combustible foil according to example 1 of the invention;
FIG. 6 is an XRD pattern of the starting material of the ferroaluminum alloy for the ignitable agent for a combustible foil in example 1 of the present invention.
Detailed Description
Example 1
The invention relates to a preparation method of a flammable foil for a non-point source type infrared jamming bomb, which is shown in a figure 1 and comprises the following steps:
step 1) preparing key material alloy slurry for the combustible foil.
Step 1.1) preparing an adhesive, mixing sodium silicate, sodium tripolyphosphate and water according to a mass ratio of 25:1:74, heating, stirring and dissolving to prepare the adhesive with the sodium silicate concentration of 25 wt%; sodium silicate has a modulus of 2.5;
step 1.2) preparing energy-containing alloy powder, weighing iron-aluminum alloy powder and magnesium powder, and physically mixing according to a mass ratio of 1:0.25 to obtain the energy-containing alloy powder, wherein the mass ratio of aluminum in the iron-aluminum alloy powder is 50 wt%, the impurity content of the magnesium powder is less than 20%, and the particle size ranges of the iron-aluminum alloy powder and the magnesium powder are 0-30 mu m;
step 1.3) adopts a simple solid-liquid mixing method, the adhesive obtained in step 1.1) and the energy-containing alloy powder obtained in step 1.2) are mixed according to the solid content of 60wt.%, and mechanical stirring and uniform mixing are adopted to obtain alloy slurry. The solid content refers to the mass ratio of the alloy powder containing energy to the alloy slurry.
And 2) uniformly coating the alloy slurry obtained in the step 1) on the surface of a metal foil, drying in hot air, cutting, roasting at 600 ℃ for 30min under the condition of nitrogen atmosphere, and naturally cooling to room temperature for standby.
The metal foil needs to be pretreated before use, and the pretreatment comprises cleaning, degreasing and drying.
The drying temperature in the hot air is not higher than 60 ℃, the drying time is not higher than 1h, and the drying time is shorter when the temperature is higher, so that the alloy slurry is prevented from being overdry and difficult to cut.
In other embodiments of the present invention, the water content of the alloy slurry may be removed by normal temperature drying, and the normal temperature drying is not limited to time.
Step 3) immersing the baked foil obtained in the step 2) into a 30% NaOH solution for activation for 20min at 80 ℃, taking out, washing with water after completion, and drying for 2.0h at 200 ℃ in a vacuum oven to obtain the combustible foil for infrared interference bomb, which is marked as A1, and storing the combustible foil in an inert atmosphere glove box to avoid spontaneous combustion, and meanwhile, facilitating assembly during subsequent use. As shown in fig. 5, an SEM image of A1 is shown.
The inert atmosphere is nitrogen or helium, and the oxygen content and the water content in the glove box are not more than 100ppm.
Example 2
Step 1) preparing alloy slurry for the combustible foil.
Step 1.1) preparing an adhesive, mixing sodium silicate, sodium tripolyphosphate and water according to a mass ratio of 25:1:74, heating, stirring and dissolving to prepare the adhesive with the concentration of 25wt.% of sodium silicate, wherein the modulus of the sodium silicate is 2.5;
step 1.2) preparing energy-containing alloy powder, weighing iron-aluminum alloy powder and magnesium powder, and physically mixing according to a mass ratio of 1:0.25 to obtain the energy-containing alloy powder, wherein the mass ratio of aluminum in the iron-aluminum alloy powder is 50 wt%, and the particle size range of the iron-aluminum alloy powder and the magnesium powder is 0-60 mu m;
step 1.3) adopts a simple solid-liquid mixing method, the adhesive obtained in step 1.1) and the energy-containing alloy powder obtained in step 1.2) are mixed according to the solid content of 60wt.%, and mechanical stirring and uniform mixing are adopted to obtain alloy slurry.
And 2) uniformly coating the alloy slurry obtained in the step 1) on the surface of a metal foil, drying in hot air, cutting, roasting at 600 ℃ for 30min under the condition of nitrogen atmosphere, and naturally cooling to room temperature for standby.
And 3) immersing the baked foil obtained in the step 2) into a 30% NaOH solution for activation for 20min at 80 ℃, taking out, washing with water after the activation is completed, and drying for 2.0h at 200 ℃ in a vacuum oven to obtain the combustible foil A2 for the infrared jamming bomb, and storing the combustible foil in an inert atmosphere glove box.
Example 3
Step 1) preparing alloy slurry for the combustible foil.
Step 1.1) preparing an adhesive, mixing sodium silicate, sodium tripolyphosphate and water according to a mass ratio of 25:1:74, heating, stirring and dissolving to prepare the adhesive with the concentration of 25wt.% of sodium silicate, wherein the modulus of the sodium silicate is 2.5;
step 1.2) preparing energy-containing alloy powder, weighing iron-aluminum alloy powder and magnesium powder, and physically mixing according to a mass ratio of 1:0.25 to obtain the energy-containing alloy powder, wherein the mass ratio of aluminum in the iron-aluminum alloy powder is 50 wt%, and the particle size range of the iron-aluminum alloy powder and the magnesium powder is 0-90 mu m;
step 1.3) adopts a simple solid-liquid mixing method, the adhesive obtained in step 1.1) and the energy-containing alloy powder obtained in step 1.2) are mixed according to the solid content of 60wt.%, and mechanical stirring and uniform mixing are adopted to obtain alloy slurry.
And 2) uniformly coating the alloy slurry obtained in the step 1) on the surface of a metal foil, drying in hot air, cutting, roasting at 600 ℃ for 30min under the condition of nitrogen atmosphere, and naturally cooling to room temperature for standby.
And 3) immersing the baked foil obtained in the step 2) into a 30% NaOH solution for activation for 20min at 80 ℃, taking out, washing with water after the activation is completed, placing the foil in a vacuum oven for drying at 200 ℃ for 2.0h to obtain a combustible foil A3 for infrared jamming bomb, and storing the combustible foil in an inert atmosphere glove box.
Example 4
Step 1) preparing alloy slurry for the combustible foil.
Step 1.1) preparing an adhesive, mixing sodium silicate, sodium tripolyphosphate and water according to a mass ratio of 25:1:74, heating, stirring and dissolving to prepare the adhesive with the concentration of 25wt.% of sodium silicate, wherein the modulus of the sodium silicate is 2.5;
step 1.2) preparing energy-containing alloy powder, weighing iron-aluminum alloy powder and magnesium powder, and physically mixing according to a mass ratio of 1:0.25 to obtain the energy-containing alloy powder, wherein the mass ratio of aluminum in the iron-aluminum alloy powder is 50 wt%, and the particle size range of the iron-aluminum alloy powder and the magnesium powder is 0-120 mu m;
step 1.3) adopts a simple solid-liquid mixing method, the adhesive obtained in step 1.1) and the energy-containing alloy powder obtained in step 1.2) are mixed according to the solid content of 60wt.%, and mechanical stirring and uniform mixing are adopted to obtain alloy slurry.
And 2) uniformly coating the alloy slurry obtained in the step 1) on the surface of a metal foil, drying in hot air, cutting, roasting at 600 ℃ for 30min under the condition of nitrogen atmosphere, and naturally cooling to room temperature for standby.
And 3) immersing the baked foil obtained in the step 2) into a 30% NaOH solution for activation for 20min at 80 ℃, taking out, washing with water after the activation is completed, placing the foil in a vacuum oven for drying at 200 ℃ for 2.0h to obtain a combustible foil A4 for infrared jamming bomb, and storing the combustible foil in an inert atmosphere glove box.
Example 5
Step 1) preparing alloy slurry for the combustible foil.
Step 1.1) preparing an adhesive, mixing sodium silicate, polyvinyl alcohol and water according to a mass ratio of 20:0.75:79.25, heating, stirring and dissolving to prepare the adhesive with the concentration of 20wt.% of sodium silicate, wherein the modulus of the sodium silicate is 2.0;
step 1.2) preparing energy-containing alloy powder, weighing nickel-aluminum alloy powder and zinc powder, and physically mixing according to a mass ratio of 1:0.1 to obtain the energy-containing alloy powder, wherein the mass ratio of aluminum in the nickel-aluminum alloy is 30 wt%, and the particle size range of the nickel-aluminum alloy powder and the zinc powder is 0-60 mu m;
step 1.3) adopts a simple solid-liquid mixing method, the adhesive obtained in step 1.1) and the energy-containing alloy powder obtained in step 1.2) are mixed according to the solid content of 50wt.%, and mechanical stirring and uniform mixing are adopted to obtain alloy slurry.
And 2) uniformly coating the alloy slurry obtained in the step 1) on the surface of a metal foil, drying in hot air, cutting, roasting at 400 ℃ for 60min under the condition of nitrogen atmosphere, and naturally cooling to room temperature for standby.
And 3) immersing the baked foil obtained in the step 2) into a 20% NaOH solution for activation for 30min at 50 ℃, taking out, washing with water after the activation is completed, placing the foil in a vacuum oven for drying at 150 ℃ for 3.0h to obtain the combustible foil A5 for the infrared interference bomb, and storing the combustible foil in an inert atmosphere glove box.
Example 6
Step 1) preparing alloy slurry for the combustible foil.
Step 1.1) preparing an adhesive, mixing potassium silicate, hydroxyethyl cellulose, methyl cellulose and water according to a mass ratio of 30:0.5:0.5:69, heating, stirring and dissolving to prepare the adhesive with the concentration of 30wt.% of potassium silicate, wherein the modulus of the potassium silicate is 3.4;
step 1.2) preparing energy-containing alloy powder, weighing iron-aluminum alloy powder and titanium powder, and physically mixing according to a mass ratio of 1:0.5 to obtain the energy-containing alloy powder, wherein the mass ratio of aluminum in the iron-aluminum alloy powder is 60 wt%, and the particle size range of the iron-aluminum alloy powder and the titanium powder is 0-60 mu m;
step 1.3) adopts a simple solid-liquid mixing method, the adhesive obtained in step 1.1) and the energy-containing alloy powder obtained in step 1.2) are mixed according to the solid content of 80wt.%, and mechanical stirring and uniform mixing are adopted to obtain alloy slurry.
And 2) uniformly coating the alloy slurry obtained in the step 1) on the surface of a metal foil, drying in hot air, cutting, roasting at 700 ℃ for 10min under the condition of nitrogen atmosphere, and naturally cooling to room temperature for standby.
And 3) immersing the baked foil obtained in the step 2) into 40% NaOH solution for activation for 10min at 100 ℃, taking out, washing with water after the activation is completed, placing the foil in a vacuum oven for drying at 300 ℃ for 0.5h to obtain the combustible foil A6 for infrared interference bomb, and storing the combustible foil in an inert atmosphere glove box.
Comparative example 1
Comparative example 1 the procedure was substantially identical to example 1, except that the energetic alloy slurry of comparative example 1 had only the starter raw material fe—al alloy, and no starter component, to give a combustible foil B1.
Comparative example 2
Comparative example 2 the procedure was substantially identical to example 1, except that the adhesive used in the energetic alloy slurry of comparative example 2 was a pure sodium silicate solution, with no adhesion enhancer component, to give a combustible foil B2.
Combustion performance detection: the light-off-burning characteristics of the combustible foil were tested by a PS400 Gao Degong external thermal imager, in particular: taking out the combustible foil from the glove box, quickly igniting and burning the foil after contacting air, releasing intense light and heat, and measuring a temperature field by using a camera to align the foil, thereby verifying the burning performance of the combustible foil. The invention uses technical indexes to require combustible foil: the ignition time is less than or equal to 1.5s (the room temperature is increased to 900K); the combustion duration is more than or equal to 3.0s (more than 900K).
And (3) adhesive property detection: the method for checking the powder removing condition of the combustible foil in the using process is a visual observation and acceptance judging method, a bending tool is used for bending a sample in a glove box, the powder removing condition of gaps at the bending positions of the two sides of the foil is visually observed, and the condition that the foil substrate is not leaked is judged to be qualified.
TABLE 1 comparison of the light-off and Combustion Performance data for the combustible foils of the invention
| Sequence number | Ignition time/s | Duration/s | Maximum temperature/K | Powder removal condition |
| Example 1 (A1) | 0.56 | 5.10 | 1584.1 | Qualified product |
| Example 2 (A2) | 0.82 | 4.95 | 1584.8 | Qualified product |
| Example 3 (A3) | 1.05 | 5.43 | 1579.0 | Qualified product |
| Example 4 (A4) | 1.25 | 5.78 | 1578.6 | Qualified product |
| Example 5 (A5) | 0.51 | 4.54 | 1577.3 | Qualified product |
| Example 6 (A6) | 1.18 | 5.83 | 1586.5 | Qualified product |
| Comparative example 1 (B1) | 0.98 | 0.00 | 895.7 | Qualified product |
| Comparative example 2 (B2) | 0.72 | 6.15 | 1616.1 | Failure to pass |
As can be seen from comparison of the performance test data of the combustible foil, the comprehensive performance of the two comparative examples is poor, the ignition-combustion performance curve is shown in fig. 4, the combustion temperature and duration of the combustible foil of comparative example 1 do not meet the use index requirements, and the adhesive performance of comparative example 2 cannot meet the use requirements of the foil although the combustible foil has good ignition-combustion characteristics. The combustible foil obtained by the invention has the advantages that the combustible foil can be quickly ignited when being exposed to air through the mutual interaction of the ignition agent and the combustion agent with a specific proportion by a two-component system of the composite ignition agent and the combustion agent, and the purpose that the foil can continuously burn at high temperature and release heat is realized. The particle size distribution of examples 1-4 is shown in fig. 2, the light-off-combustion performance curve is shown in fig. 3, the porous iron starter after activation by NaOH emits strong infrared radiation light after ignition of magnesium powder, and the smaller the particle size of the starting material of the starter, the faster the ignition speed. When the particle size of the starting material of the ignition agent is too large, intense spark-over occurs during combustion due to the excessively intense combustion of the crystal nuclei, which affects the usability of the combustible foil, and in the case of example 6, the starting material of the ignition agent has a particle size ranging from 0 to 120 μm and a small amount of spark-over occurs during combustion, so that the starting material of the ignition agent and the particle size of the combustion agent are preferably 90 μm or less. From the above performance data, it can be seen that the combustible foil of the examples performed best, with longer duration and highest temperature after combustion, with shorter light-off time.
Meanwhile, in the embodiment of the invention, the adhesion performance of the combustible foil obtained in the embodiments 1-6 and the comparative example 1 meets the use requirement, while the powder removing condition occurs in the comparative example 2, mainly because the adhesive reinforcing agent is introduced into the adhesive used in the invention, the adhesive capability of the adhesive can be effectively improved through the introduction of the adhesive reinforcing agent, so that the powder removing condition after the combustible foil is charged can meet the use requirement of environmental adaptability such as vibration and the like.
Claims (10)
1. A flammable foil for a non-point source type infrared interference bomb is characterized in that:
the flame retardant coating comprises a metal foil and a mixture coated on the surface of the metal foil, wherein the mixture comprises an adhesive, a primer and a combustion agent;
the adhesive comprises silicate;
the ignition agent is a material capable of self-ignition in air.
2. The combustible foil for a non-point source type infrared jamming bomb according to claim 1, wherein:
the ignition agent is formed by activating a nickel-aluminum alloy or an iron-aluminum alloy through a strong alkali solution, wherein the aluminum content in the nickel-aluminum alloy or the iron-aluminum alloy is 30-60 wt%;
the mass ratio of the nickel-aluminum alloy/iron-aluminum alloy to the combustion agent is 1 (0.1-0.5).
3. A combustible foil for a non-point source type infrared jamming bomb according to claim 1 or 2, characterized in that:
the adhesive also comprises an adhesion enhancer, wherein the adhesion enhancer is one or more of sodium tripolyphosphate, polyvinyl alcohol, hydroxyethyl cellulose, methyl cellulose and the like; the silicate is sodium silicate and/or potassium silicate, and the modulus of the silicate is 2.0-3.4;
the combustion agent comprises alloy powder composed of one or more of magnesium, zinc, titanium and boron, wherein the impurity content is less than 20% of the total mass.
4. A combustible foil for a non-point source infrared jamming bomb according to claim 3, wherein:
the ignition agent is formed by activating an iron-aluminum alloy through a NaOH solution, and the combustion agent is magnesium;
the adhesive is sodium silicate, and the viscosity enhancer is sodium tripolyphosphate.
5. The preparation method of the combustible foil for the non-point source type infrared jamming bomb is characterized by comprising the following steps of:
step 1) preparing alloy slurry
Uniformly mixing the adhesive and the energy-containing alloy powder to obtain alloy slurry;
the adhesive is silicate aqueous solution, and the energetic alloy powder comprises an ignition agent raw material and a combustion agent;
step 2) coating and baking
Step 2.1), uniformly coating the energy-containing slurry obtained in the step 1) on the surface of a metal foil, and drying to remove the moisture of the energy-containing slurry;
step 2.2) roasting the metal foil under the inert atmosphere condition, and cooling to room temperature for standby;
and 3) immersing the metal foil obtained in the step 2) in a strong alkali solution to activate the starting material of the ignition agent to form the ignition agent, taking out the ignition agent after activation, washing with water, and carrying out vacuum drying to obtain a combustible foil, and storing the combustible foil in an inert atmosphere glove box.
6. The method for preparing the combustible foil for the non-point source type infrared jamming bomb, which is disclosed in claim 5, is characterized in that:
in the step 2.1), the drying temperature is less than or equal to 60 ℃, and the drying time is less than or equal to 1h; cutting the metal foil according to different requirements after drying;
in the step 2.2), the roasting temperature is 400-700 ℃, the roasting time is 10-60 min, and the roasting atmosphere is nitrogen.
7. The method for preparing the combustible foil for the non-point source type infrared jamming bomb according to claim 5 or 6, wherein the method comprises the following steps:
the step 1) is specifically as follows:
step 1.1) dissolving silicate, or silicate and viscosity enhancer, in water to prepare an aqueous silicate solution with a mass concentration of 20-30 wt.% as an adhesive;
the silicate is one or two of sodium silicate or potassium silicate, and the modulus of the sodium silicate or the potassium silicate is 2.0-3.4;
the viscosity enhancer is one or more of sodium tripolyphosphate, polyvinyl alcohol, hydroxyethyl cellulose, methyl cellulose and the like, and the ratio of the viscosity enhancer in the adhesive is 0.5-1.0 wt.%;
step 1.2), weighing and mixing the ignition agent raw material and the combustion agent to prepare energetic alloy powder with the mass ratio of the ignition agent raw material to the combustion agent of 1 (0.1-0.5);
step 1.3) uniformly mixing the adhesive and the energetic alloy powder to obtain alloy slurry with the solid content of 50-80 wt.%, wherein the solid content refers to the mass ratio of the energetic alloy powder to the alloy slurry.
8. The method for preparing the combustible foil for the non-point source type infrared jamming bomb, which is characterized by comprising the following steps of:
in the step 1.2), the starting material of the ignition agent is nickel-aluminum alloy or iron-aluminum alloy powder, the granularity is less than or equal to 90 mu m, and the aluminum accounts for 30-60 wt%;
the combustion agent comprises alloy powder composed of one or more of magnesium, zinc, titanium and boron, the granularity is less than or equal to 90 mu m, and the impurity content is less than 20% of the total mass.
9. The method for preparing the combustible foil for the non-point source type infrared jamming bomb, which is disclosed in claim 8, is characterized in that:
in the step 3), the strong alkali solution is a NaOH solution with the weight percent of 20-40, the activation time is 10-30 min, and the activation temperature is 50-100 ℃; the vacuum drying temperature is 150-300 ℃ and the drying time is 0.5-3.0 h.
10. The method for preparing the combustible foil for the non-point source type infrared jamming bomb, which is characterized by comprising the following steps of:
in the step 1.1), the silicate is sodium silicate, the viscosity enhancer is sodium tripolyphosphate, the proportion of the sodium tripolyphosphate in the adhesive is 1.0wt.%, and 25wt.% of sodium silicate aqueous solution is prepared;
in the step 1.2), the starting material of the ignition agent is an iron-aluminum alloy, wherein the mass ratio of aluminum is 50 wt%, the combustion agent is magnesium, and the mass ratio of the starting material of the ignition agent to the combustion agent is 1:0.25;
in step 1.3), the solids content is 60wt.%;
in the step 2.2), the inert atmosphere is nitrogen atmosphere, the roasting temperature is 600 ℃, and the roasting time is 30min;
in the step 3), the mass concentration of the NaOH solution is 30%, the activation time is 20min, the inert atmosphere is nitrogen or helium, and the oxygen content and the water content in the inert atmosphere glove box are not more than 100ppm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311606003.5A CN117655335A (en) | 2023-11-28 | 2023-11-28 | Combustible foil for non-point source type infrared interference bomb and preparation method thereof |
| PCT/CN2023/142412 WO2025112152A1 (en) | 2023-11-28 | 2023-12-27 | Combustible foil for area-type infrared decoy flare and preparation method therefor |
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| CN202311606003.5A CN117655335A (en) | 2023-11-28 | 2023-11-28 | Combustible foil for non-point source type infrared interference bomb and preparation method thereof |
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| US4018616A (en) * | 1974-09-13 | 1977-04-19 | Mizusawa Kagaku Kogyo Kabushiki Kaisha | Water glass composition |
| US4970114A (en) * | 1979-03-30 | 1990-11-13 | Alloy Surfaces Company, Inc. | Coating and activation of metals |
| US4880483A (en) * | 1981-07-08 | 1989-11-14 | Alloy Surfaces Company, Inc. | Pyrophoric composition |
| US5182078A (en) * | 1980-07-28 | 1993-01-26 | Alloy Surfaces Company, Inc. | Metal treatment |
| WO1989010340A1 (en) * | 1988-04-18 | 1989-11-02 | Alloy Surfaces Company, Inc. | Activated metal and method |
| US5102700A (en) * | 1988-04-18 | 1992-04-07 | Alloy Surfaces Company, Inc. | Exothermically formed aluminide coating |
| CN100424052C (en) * | 2004-10-08 | 2008-10-08 | 中国科学院长春应用化学研究所 | Long wave infrared burning radiation agent |
| GB2432582A (en) * | 2005-11-18 | 2007-05-30 | Pains Wessex Ltd | Decoy countermeasure |
| JP4668954B2 (en) * | 2007-06-21 | 2011-04-13 | 株式会社トレードサービス | Aqueous complete inorganic alkali metal silicate composition, aqueous complete inorganic alkali metal silicate composition aqueous solution, aqueous coating agent, aqueous solution of aqueous coating agent, complete inorganic colored paint, binder for high temperature heat resistant paint, aqueous complete inorganic alkali metal silicate compound How to use |
| CN114316481A (en) * | 2021-12-22 | 2022-04-12 | 中国建筑材料科学研究总院有限公司 | Infrared interference material, preparation method and application thereof |
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