CN114736084A - Stable and efficient novel combustion agent and preparation method thereof - Google Patents
Stable and efficient novel combustion agent and preparation method thereof Download PDFInfo
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- CN114736084A CN114736084A CN202210222401.6A CN202210222401A CN114736084A CN 114736084 A CN114736084 A CN 114736084A CN 202210222401 A CN202210222401 A CN 202210222401A CN 114736084 A CN114736084 A CN 114736084A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 59
- 239000000843 powder Substances 0.000 claims abstract description 50
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 32
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 19
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 18
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 18
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005751 Copper oxide Substances 0.000 claims abstract description 17
- 229910000431 copper oxide Inorganic materials 0.000 claims abstract description 17
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002270 dispersing agent Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims abstract description 8
- 238000005469 granulation Methods 0.000 claims abstract description 7
- 230000003179 granulation Effects 0.000 claims abstract description 7
- 239000003814 drug Substances 0.000 claims description 32
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 27
- 238000001035 drying Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 14
- 238000007873 sieving Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011362 coarse particle Substances 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- 239000002184 metal Substances 0.000 abstract description 12
- 238000002844 melting Methods 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000000306 component Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003832 thermite Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 229920005596 polymer binder Polymers 0.000 description 3
- 239000002491 polymer binding agent Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000003860 storage Methods 0.000 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 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- 238000004200 deflagration Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical class [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
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-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/001—Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/12—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being two or more oxygen-yielding compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention provides a novel stable and efficient combustion agent. The stable and efficient novel combustion agent comprises 18-21 parts of high-energy aluminum alloy powder or magnesium aluminum alloy powder, 12-15 parts of ferric oxide, 3-5 parts of molybdenum trioxide, 50-55 parts of copper oxide, 0.5-2 parts of tungsten powder, 1-3 parts of a dispersing agent and 2-5 parts of fluororubber by weight through a series of steps of raw material powder mixing, granulation glue solution preparation, mixing granulation and the like. The stable and efficient novel combustion agent is easier to mix uniformly, the safety of the preparation process is improved, the fusing and fusion-through functions of flame jet on a metal target are improved, and various sensitivity indexes are reduced; good compatibility and excellent stability; the combustion temperature can reach more than 2800 ℃, and the flame can be used for igniting materials, damaging facilities and core parts of equipment, and melting strip-shaped, rod-shaped and linear metal barriers. In addition, a preparation method of the novel stable and efficient combustion agent is also provided.
Description
Technical Field
The invention relates to the technical field of metal compound combustion agents, in particular to a stable and efficient novel combustion agent and a preparation method thereof.
Background
The combustion agent can produce high temperature or glowing flame when burning, and is used for destroying and firing chemical substances. In the modern world, thermite and ferroaluminum thermite are generally adopted as main energy sources, ferroferric oxide and ferric oxide are generally adopted as oxidants, and can be decomposed to release oxygen at medium temperature, but a layer of slag film is often attached to the surface of a metal target after the thermite and the ferroaluminum thermite are fused and melted through by high-temperature flame jet, so that a certain heat insulation effect is achieved on the metal target, the fusing and melting effects of high-temperature flame are influenced, and the use requirements are difficult to meet.
The combustion temperature of the combustion agent is low, the flame intensity is low, and more slag is generated after combustion, so that the application of the combustion agent in the field of metal targets is not facilitated. For example, Chinese patent 201710692067.X discloses a high-energy combustion agent and a preparation method thereof, wherein the combustion agent comprises 70-80% of a high-energy component, 9-14% of a low-melting-point wetting agent, 3-5% of a pore-forming agent and 6-12% of an auxiliary agent, and is prepared by a series of steps of drying and mixing the components, preparing a grain and the like, and the highest combustion temperature of the combustion agent is 2004 ℃. Chinese patent 201811559803.5 discloses a combustion agent and a preparation method thereof, wherein the combustion agent comprises 25-30 parts of aluminum powder or aluminum-nickel alloy, 40-50 parts of ferroferric oxide and 20-35 parts of barium nitrate, and is prepared by a series of steps of drying, mixing and preparing a grain and the like. The maximum combustion temperature of the combustion agent was 2500 ℃. The combustion temperature of the combustion agent taking the thermite as the main energy source is not high enough, and the combustion agent is not beneficial to the application of the combustion agent in cutting, fusing and penetrating metal targets.
Disclosure of Invention
Based on this, the invention aims to provide a novel combustion agent which is stable, efficient and has high combustion temperature and a preparation method thereof.
In a first aspect, the invention provides a stable and efficient novel combustion agent, which comprises, by weight, 18-21 parts of high-energy aluminum alloy powder or magnesium-aluminum alloy powder, 12-15 parts of ferric oxide, 3-5 parts of molybdenum trioxide, 50-55 parts of copper oxide, 0.5-2 parts of tungsten powder, 1-3 parts of a dispersing agent and 2-5 parts of fluororubber.
Further, the particle sizes of the magnesium-aluminum alloy powder and the ferric oxide are both 75 mu m, the particle sizes of the molybdenum trioxide, the copper oxide and the tungsten powder are 150 mu m, and the particle size of the high-energy aluminum alloy powder is 120 mu m.
Further, 19 parts of high-energy aluminum alloy powder or magnesium-aluminum alloy powder, 14 parts of ferric oxide, 3 parts of molybdenum trioxide, 52 parts of copper oxide, 1 part of tungsten powder, 1.5 parts of a dispersing agent and 4 parts of fluororubber.
In a second aspect, the present invention also provides a method for preparing a stable and efficient novel combustion agent, comprising the following steps: step (1): mixing raw material powder, uniformly mixing high-energy aluminum alloy powder or magnesium aluminum alloy powder, ferric oxide, molybdenum trioxide, copper oxide, tungsten powder and a dispersing agent in proportion, and vacuumizing and packaging for later use; step (2): preparing a granulation glue solution, namely, mincing the fluororubber, weighing, adding the minced fluororubber into ethyl acetate with certain mass, and stirring regularly to ensure that the fluororubber can be completely dissolved for standby after about 7-10 days; and (3): mixing and granulating, namely mixing the raw material powder and the granulating glue solution in proportion, and externally ventilating and fully stirring; and (3) after the organic solvent is volatilized until the medicament is in a coarse particle shape, sieving the medicament by using a 40-mesh sieve, uniformly stirring the medicament after sieving, repeatedly sieving the medicament once again, uniformly stirring the medicament, placing the sieved medicament powder in a drying room at the temperature of between 40 and 50 ℃, drying the medicament powder for 4 hours, and pressing the obtained mixture into a medicament column.
Further, the drying environment is drying for 4 hours at 120 ℃.
Further, the dissolving ratio of the ethyl acetate is 1: 2-1: 8.
Further, the pressure intensity during pressing is 8-10 Mpa.
According to the stable and efficient novel combustion agent, the optimized scheme of adding the tungsten powder and the flow agent and selecting the high polymer binder is adopted, so that the powder is easier to mix uniformly, the safety of the preparation process is improved, the fusing and fusion-through capacity of flame jet flow on a metal target is improved, and various sensitivity indexes are reduced. Good compatibility and excellent stability. Through drop, vibration, high and low temperature, soaking, long storage and other environmental tests, the flame-retardant cable can reliably act, has no phenomena of deflagration and detonation, has the safety performance meeting the use requirement, has the combustion temperature of more than 2800 ℃, and can be used for igniting materials, damaging facilities and core parts of equipment and melting strip-shaped, rod-shaped and linear metal barriers.
The stable and efficient novel combustion agent disclosed by the invention has high flame temperature during combustion, can reach 2800 ℃, can melt through a Q235 steel plate with the thickness not less than 12 mm within 8 seconds, can melt through Q235 round steel with the diameter not less than 18 mm within 8 seconds, and can melt through the Q235 steel plate with the thickness not less than 12 mm within 10 seconds at a position 1m underwater.
Drawings
FIG. 1 is a flow chart of a method for preparing the novel combustion agent with high efficiency according to the present invention;
FIG. 2 is a graph showing the effect of the combustion perforation test of the combustion agent of example 1;
FIG. 3 is a combustion temperature profile of the combustion agent of example 1;
FIG. 4 is a combustion temperature profile of the combustion agent of embodiment 2;
FIG. 5 is a combustion temperature profile of the combustion agent of comparative example 1; and
FIG. 6 is a combustion temperature profile of the combustion agent of comparative example 2.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1-2, the present invention provides a stable and efficient novel combustion agent, which comprises, by weight, 18 to 21 parts of high energy aluminum alloy powder or magnesium aluminum alloy powder, 12 to 15 parts of ferric oxide, 3 to 5 parts of molybdenum trioxide, 50 to 55 parts of copper oxide, 0.5 to 2 parts of tungsten powder, 1 to 3 parts of a dispersing agent, and 2 to 5 parts of fluororubber.
In one embodiment, the particle sizes of the magnesium-aluminum alloy powder and the ferric oxide are both 75 μm, the particle sizes of the molybdenum trioxide, the copper oxide and the tungsten powder are 150 μm, and the particle size of the high-energy aluminum alloy powder is 120 μm.
In one embodiment, the high energy aluminum alloy powder or the magnesium aluminum alloy powder is 19 parts, the ferric oxide is 14 parts, the molybdenum trioxide is 3 parts, the copper oxide is 52 parts, the tungsten powder is 1 part, the flow agent is 1.5 parts, and the fluororubber is 4 parts.
In addition, the invention also provides a preparation method of the stable and efficient novel combustion agent, which comprises the following steps: step (1): mixing raw material powder, uniformly mixing high-energy aluminum alloy powder or magnesium aluminum alloy powder, ferric oxide, molybdenum trioxide, copper oxide, tungsten powder and a dispersing agent in proportion, and vacuumizing and packaging for later use; step (2): preparing a granulation glue solution, namely mincing the fluororubber, weighing, adding the minced fluororubber into ethyl acetate with certain mass, and stirring periodically to ensure that the fluororubber can be completely dissolved for later use within about 7-10 days; and (3): mixing and granulating, namely mixing the raw material powder and the granulating glue solution in proportion, and externally ventilating and fully stirring; and (3) after the organic solvent is volatilized until the medicament is in a coarse particle shape, sieving the medicament by using a 40-mesh sieve, uniformly stirring the medicament after sieving, repeatedly sieving the medicament once again, uniformly stirring the medicament, placing the sieved medicament powder in a drying room at the temperature of between 40 and 50 ℃, drying the medicament powder for 4 hours, and pressing the obtained mixture into a medicament column.
In one embodiment, the drying environment is 120 ℃ for 4 hours.
In one embodiment, the ethyl acetate is dissolved in a ratio of 1:2 to 1: 8.
In one embodiment, the pressure during the pressing is 8-10 Mpa.
Specifically, the preparation method of the novel combustion agent provided by the invention comprises the following specific steps:
(1) weighing: weighing raw materials of each component in parts by weight;
(2) and (4) mixing the raw material powder. In the raw materials, except for the reducing agent which needs vacuum drying, the other raw material medicaments need drying for 4 hours at the temperature of 120 ℃; after being uniformly mixed, the dried raw material medicaments are filtered by a 40-mesh screen and uniformly mixed; sieving once again, mixing well, vacuum packaging, and keeping.
(3) And (4) preparing a granulation glue solution. The fluororubber is minced, weighed, added into ethyl acetate with a certain mass (dissolved according to the proportion of 1: 5-1: 7), and stirred periodically for about 7-10 days to be completely dissolved for later use.
(4) Mixing and granulating. Mixing the raw material powder and the granulation glue solution in proportion, and then externally ventilating and fully stirring; when the organic solvent is volatilized until the medicament is in a coarse particle shape, sieving the medicament by using a 40-mesh sieve, uniformly stirring the medicament after sieving, and repeatedly sieving the medicament once again and uniformly stirring the medicament; placing the sieved medicament powder in a drying room at 40-50 ℃, drying for 4h, and removing a large amount of ethyl acetate; putting into a vacuum drying oven, and vacuumizing (not higher than 0.01 MPa) at 60 deg.C for 4h to remove residual ethyl acetate.
(5) Making into medicinal column. Pressing the mixture into a grain under the pressure of 8-10 Mpa.
According to the stable and efficient novel combustion agent, the optimized scheme of adding the tungsten powder and the flow agent and selecting the high polymer binder is adopted, so that the powder is easier to mix uniformly, the safety of the preparation process is improved, the fusing and fusion-through capacity of flame jet flow on a metal target is improved, and various sensitivity indexes are reduced. Good compatibility and excellent stability. Through drop, vibration, high and low temperature, soaking, long storage and other environmental tests, the flame-retardant cable can reliably act, has no phenomena of deflagration and detonation, has the safety performance meeting the use requirement, has the combustion temperature of more than 2800 ℃, and can be used for igniting materials, damaging facilities and core parts of equipment and melting strip-shaped, rod-shaped and linear metal barriers.
The stable and efficient novel combustion agent disclosed by the invention has high flame temperature during combustion, can reach 2800 ℃, can melt through a Q235 steel plate with the thickness not less than 12 mm within 8 seconds, can melt through Q235 round steel with the diameter not less than 18 mm within 8 seconds, and can melt through the Q235 steel plate with the thickness not less than 12 mm within 10 seconds at a position 1m underwater.
Example 1
Referring to fig. 1 to fig. 3, the present embodiment provides a stable and efficient novel combustion agent, which comprises the following components in parts by weight: 18 parts of high-energy aluminum alloy powder or magnesium aluminum alloy powder, 12 parts of ferric oxide, 3 parts of molybdenum trioxide, 50 parts of copper oxide, 0.5 part of tungsten powder, 1 part of a dispersing agent and 2 parts of fluororubber.
The novel combustion agent obtained in example 1 was prepared according to GJB5384.8-2005 pyrotechnic composition Performance test method part 8: flame temperature measurement thermal radiation method, test conditions: ambient temperature: 15-35 ℃; relative humidity less than or equal to 80%; and (4) testing at the wind speed of 1-1.5 m/s at the center of the flame in the combustion tower.
The effect of the steel plate burning test is shown in fig. 2. The combustion temperature profile of example 1 is shown in fig. 3. During the combustion process, the cluster jet generated by the combustion of the grains can be found to rapidly melt through the steel plate and fuse the reinforcing steel bars in a short time.
As can be seen from FIG. 2, the flame intensity of the new combustion agent can rapidly melt through the steel plate. From the test results in fig. 3, it can be seen that the combustion temperature of the embodiment of the present invention is relatively high, which can reach 2891 ℃. According to the stable and efficient novel combustion agent, by adding the tungsten powder and the dispersing agent and selecting the optimized scheme of the high polymer binder, the powder is easier to mix uniformly, the safety of the preparation process is improved, the fusing and melting-through capacity of flame jet flow on a metal target is improved, and meanwhile, various sensitivity indexes are reduced. Good compatibility and excellent stability. The safety performance can meet the use requirements through the reliable action of environmental tests such as falling, vibration, high and low temperature, soaking, long-term storage and the like, and the safety device can be used for igniting materials, damaging facilities and core components of equipment and melting strip-shaped, rod-shaped and linear metal barriers.
Example 2
Referring to fig. 4, the present embodiment provides a stable and efficient novel combustion agent, which comprises the following components in parts by weight: 21 parts of high-energy aluminum alloy powder or magnesium aluminum alloy powder, 15 parts of ferric oxide, 5 parts of molybdenum trioxide, 55 parts of copper oxide, 2 parts of tungsten powder, 3 parts of a flow dispersing agent and 5 parts of fluororubber.
The combustion temperature profile of the novel combustion agent obtained in example 2 is shown in FIG. 4. As can be seen from the test results in the figure, the combustion temperature corresponding to the novel combustion agent is higher and can reach 3065 ℃.
Comparative example 1
A stable and efficient novel combustion agent comprises the following components in parts by weight: 10 parts of high-energy aluminum alloy powder, 15 parts of ferric oxide, 5 parts of molybdenum trioxide, 55 parts of copper oxide, 2 parts of tungsten powder, 3 parts of a dispersing agent and 5 parts of fluororubber.
The combustion temperature profile of the novel combustion agent prepared in comparative example 1 is shown in FIG. 5. As can be seen from the test results in the graph, the novel combustion agent corresponds to a low combustion temperature which can reach 2343 ℃.
Comparative example 2
A stable and efficient novel combustion agent comprises the following components in parts by weight: 10 parts of magnesium-aluminum alloy powder, 15 parts of ferric oxide, 5 parts of molybdenum trioxide, 55 parts of copper oxide, 2 parts of tungsten powder, 3 parts of a dispersing agent and 5 parts of fluororubber.
The combustion temperature profile of the novel combustion agent prepared in comparative example 2 is shown in FIG. 6. As can be seen from the test results in the figure, the combustion temperature corresponding to the novel combustion agent is lower and can reach 2125 ℃.
The above examples only express embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A stable and efficient novel combustion agent is characterized by comprising 18-21 parts of high-energy aluminum alloy powder or magnesium aluminum alloy powder, 12-15 parts of ferric oxide, 3-5 parts of molybdenum trioxide, 50-55 parts of copper oxide, 0.5-2 parts of tungsten powder, 1-3 parts of a dispersing agent and 2-5 parts of fluororubber.
2. The stable and efficient novel combustion agent as claimed in claim 1, wherein: the particle sizes of the magnesium-aluminum alloy powder and the ferric oxide are both 75 mu m, the particle sizes of the molybdenum trioxide, the copper oxide and the tungsten powder are 150 mu m, and the particle size of the high-energy aluminum alloy powder is 120 mu m.
3. The stable and efficient novel combustion agent as set forth in claim 2, wherein: 19 parts of high-energy aluminum alloy powder or magnesium aluminum alloy powder, 14 parts of ferric oxide, 3 parts of molybdenum trioxide, 52 parts of copper oxide, 1 part of tungsten powder, 1.5 parts of a dispersing agent and 4 parts of fluororubber.
4. The method for preparing the stable and efficient novel combustion agent as claimed in any one of claims 1 to 3, characterized by comprising the following steps: step (1): uniformly mixing high-energy aluminum alloy powder or magnesium aluminum alloy powder, ferric oxide, molybdenum trioxide, copper oxide, tungsten powder and a dispersing agent in proportion, and vacuumizing and packaging for later use; step (2): the fluororubber is minced, weighed and added into ethyl acetate with certain mass, and stirred periodically to be completely dissolved for standby after about 7-10 days; and (3): mixing the raw material powder and the granulation glue solution in proportion, and then externally ventilating and fully stirring; and (3) after the organic solvent is volatilized until the medicament is in a coarse particle shape, sieving the medicament by using a 40-mesh sieve, uniformly stirring the medicament after sieving, repeatedly sieving the medicament once again, uniformly stirring the medicament, placing the sieved medicament powder in a drying room at the temperature of between 40 and 50 ℃, drying the medicament powder for 4 hours, and pressing the obtained mixture into a medicament column.
5. The method for preparing the stable and efficient novel combustion agent as claimed in claim 4, wherein: the drying environment is drying for 4h at 120 ℃.
6. The method for preparing a stable and efficient novel combustion agent as claimed in claim 5, wherein: the dissolving ratio of the ethyl acetate is 1: 2-1: 8.
7. The method for preparing the stable and efficient novel combustion agent as claimed in claim 6, wherein: and the pressure intensity during pressing is 8-10 Mpa.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1029888A (en) * | 1996-05-15 | 1998-02-03 | Shunichi Yoshinaga | Burning sounding composition |
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