CN117865759A - High-strength plate-type emulsion explosive for underwater explosion compounding and preparation method thereof - Google Patents
High-strength plate-type emulsion explosive for underwater explosion compounding and preparation method thereof Download PDFInfo
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- CN117865759A CN117865759A CN202311740661.3A CN202311740661A CN117865759A CN 117865759 A CN117865759 A CN 117865759A CN 202311740661 A CN202311740661 A CN 202311740661A CN 117865759 A CN117865759 A CN 117865759A
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- emulsion explosive
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- underwater explosion
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- 239000002360 explosive Substances 0.000 title claims abstract description 83
- 239000000839 emulsion Substances 0.000 title claims abstract description 66
- 238000004880 explosion Methods 0.000 title claims abstract description 37
- 238000013329 compounding Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000011159 matrix material Substances 0.000 claims abstract description 45
- 239000004816 latex Substances 0.000 claims abstract description 40
- 229920000126 latex Polymers 0.000 claims abstract description 40
- 206010070834 Sensitisation Diseases 0.000 claims abstract description 17
- 230000008313 sensitization Effects 0.000 claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- 238000004132 cross linking Methods 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 5
- LTIBQZLAXJMKEF-UHFFFAOYSA-N azane;isocyanic acid Chemical compound N.N=C=O LTIBQZLAXJMKEF-UHFFFAOYSA-N 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920002367 Polyisobutene Polymers 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000004005 microsphere Substances 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 235000010288 sodium nitrite Nutrition 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 description 10
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 6
- 238000005474 detonation Methods 0.000 description 5
- 239000000295 fuel oil Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical group [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- FEYNFHSRETUBEM-UHFFFAOYSA-N N-[3-(1,1-difluoroethyl)phenyl]-1-(4-methoxyphenyl)-3-methyl-5-oxo-4H-pyrazole-4-carboxamide Chemical compound COc1ccc(cc1)N1N=C(C)C(C(=O)Nc2cccc(c2)C(C)(F)F)C1=O FEYNFHSRETUBEM-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a high-strength plate type emulsion explosive for underwater explosion compounding and a preparation method thereof, wherein the preparation method of the emulsion explosive comprises the following steps: s1: preparing a latex matrix, and adding a high molecular polymer into the latex matrix; s2: adding a sensitizer, a cross-linking agent, a cross-linking accelerator and a sensitization accelerator into the latex matrix of the S1 for sensitization; s3: the sensitized emulsion explosive is atomized and dehydrated by an atomizer under the action of high-pressure airflow; s4: and (3) sequentially paving the emulsion explosive dehydrated in the step (S3) and a plurality of uniformly distributed organic fiber reinforced nets in a die, and extruding to obtain the high-strength plate-type emulsion explosive for underwater explosion compounding. The polymer in the emulsion explosive gradually forms a continuous phase body type structure under the action of the cross-linking agent, so that the stability and strength of the emulsion explosive are further enhanced.
Description
Technical Field
The invention relates to the technical field of emulsion explosives, in particular to a high-strength plate-type emulsion explosive for underwater explosion compounding and a preparation method thereof.
Background
The traditional explosive compound industry adopts powdery explosive (powdery emulsion explosive, ammonium nitrate fuel oil explosive and the like), and the explosion speed is reduced to 2000-3000 m/s by adding saw dust, stone powder and other materials, and the powder explosive compound is paved on a compound plate. The composite board and the base board are combined together by downward impact force generated by explosion. The technology can compound all metal materials of the substrate, and the compound area is not limited by mechanical equipment. At present, millions of tons of explosive composite materials are produced annually in China, and national construction is greatly supported.
However, the traditional explosive composition in air belongs to naked blasting, and the processing process of the explosive composition generates huge noise and a large amount of pollutants such as toxic and harmful gases, so that the surrounding environment is greatly influenced. With the national importance of environmental protection, many air explosion-compounded cannons are shut down due to environmental pollution problems.
Meanwhile, due to the technical problem of explosion compounding in air, quality problems such as stretch breaking and the like can occur when a composite plate with the thickness less than or equal to 2mm is compounded, so that the technology cannot directly compound a thin plate, and a large market is lost.
The underwater explosion compounding is an advanced explosion processing mode that explosive and materials to be compounded are arranged in an underwater environment, and the compound plate is further impacted by the impact water of the explosive explosion, so that the compound plate and the base plate are combined. Currently, SEP explosive is mainly used abroad, and the main component is PETN (65%) paraffin (35%), and the detonation velocity reaches 7000m/s. Ammonium nitrate fuel oil explosive (detonation velocity 3000 m/s) and coiled emulsion explosive (detonation velocity 4500 m/s) are used in China.
However, none of these explosives is suitable for commercial production of underwater explosive compounds. The SEP explosive is obtained by mixing high explosive such as PETN and RDX with rubber and pressing the mixture into a plate shape, and the explosive components are generally used in military products, so that the cost is high and the cost performance is poor. Meanwhile, the explosion velocity is high, and the explosion velocity in the horizontal direction is reduced by being obliquely arranged during use, so that the method is not suitable for large-scale industrialized production. The ammonium nitrate fuel oil explosive is not waterproof, and the ammonium nitrate fuel oil explosive needs to be filled in a special container, so that the ammonium nitrate fuel oil explosive is inconvenient to use. The coiled emulsion explosive is subjected to underwater explosion compounding, the outer package of the coiled emulsion explosive is removed, and the coiled emulsion explosive is modified according to the thickness of the coiled emulsion explosive, so that the production efficiency of the process is low, and meanwhile, the performance of the explosive is easy to change due to the reequiping, so that the production process is unstable.
Disclosure of Invention
Based on the technical problems in the background technology, the invention provides a high-strength plate-type emulsion explosive for underwater explosion compounding.
The invention provides a preparation method of an emulsion explosive for high-strength plate-type underwater explosion compounding, which comprises the following steps:
s1: preparing a latex matrix, and adding a high molecular polymer into the latex matrix;
s2: adding a sensitizer, a cross-linking agent, a cross-linking accelerator and a sensitization accelerator into the latex matrix of the S1 for sensitization;
s3: the sensitized emulsion explosive is atomized and dehydrated by an atomizer under the action of high-pressure airflow;
s4: and (3) sequentially paving the emulsion explosive dehydrated in the step (S3) and a plurality of uniformly distributed organic fiber reinforced nets in a die, and extruding to obtain the high-strength plate-type emulsion explosive for underwater explosion compounding.
Preferably, the high molecular polymer in S1 is one of silicone rubber, polyethylene and polyisobutylene, and the addition amount is 0.5-2% of the mass of the latex matrix.
Preferably, the sensitizer in S2 is one of sodium nitrite, perlite and glass microsphere, and the addition amount is 0.1-1% of the mass of the latex matrix.
Preferably, the cross-linking agent in S2 is ammonium isocyanate, and the addition amount is 0.1-1% of the mass of the latex matrix.
Preferably, the crosslinking accelerator polyether in S2 is added in an amount of 0.1-1% by mass of the latex matrix.
Preferably, the addition amount of the sensitization accelerator citric acid in S2 is 0.1-1% of the mass of the latex matrix.
Preferably, the emulsion explosive after atomization and dehydration in S3 has a water content of 1-3%.
The invention provides the high-strength plate-type emulsion explosive for underwater explosion compounding, which is prepared by the method.
The invention provides application of the high-strength plate-type emulsion explosive for underwater explosion compounding in underwater explosion compounding.
The beneficial technical effects of the invention are as follows:
according to the invention, the high molecular polymer added into the emulsion explosive gradually forms a continuous phase body type structure under the action of the cross-linking agent, so that the stability and strength of the emulsion explosive are enhanced, and the emulsion explosive has good explosion compounding effect and is convenient to use when being applied to underwater explosion compounding.
Detailed Description
The invention is further illustrated below in connection with specific embodiments.
The latex matrix in the embodiment of the invention comprises the following components in parts by weight: 65 parts of ammonium nitrate, 8 parts of sodium nitrate, 2 parts of urea, 6 parts of potassium chloride, 8 parts of water, 2 parts of emulsifying agent and 3 parts of compound wax.
Example 1
The invention provides a preparation method of an emulsion explosive for high-strength plate-type underwater explosion compounding, which comprises the following steps:
s1: preparing a latex matrix, and adding a high molecular polymer into the latex matrix;
s2: adding a sensitizer, a cross-linking agent, a cross-linking accelerator and a sensitization accelerator into the latex matrix of the S1 for sensitization;
s3: the sensitized emulsion explosive is atomized and dehydrated by an atomizer under the action of high-pressure airflow;
s4: and (3) sequentially paving the emulsion explosive dehydrated in the step (S3) and a plurality of uniformly distributed organic fiber reinforced nets in a die, and extruding to obtain the high-strength plate-type emulsion explosive for underwater explosion compounding.
The high molecular polymer in S1 is silicon rubber, and the addition amount is 1.2 percent of the mass of the latex matrix.
The sensitizer in S2 is sodium nitrite, and the addition amount is 0.5% of the mass of the latex matrix; the cross-linking agent is ammonium isocyanate, and the addition amount is 0.5% of the mass of the latex matrix; the addition amount of the crosslinking accelerator polyether is 0.5% of the mass of the latex matrix; the addition amount of the sensitization promoter citric acid is 0.5 percent of the mass of the latex matrix.
And S3, the water content of the emulsion explosive after atomization and dehydration is 2%.
Example 2
The invention provides a preparation method of an emulsion explosive for high-strength plate-type underwater explosion compounding, which comprises the following steps:
s1: preparing a latex matrix, and adding a high molecular polymer into the latex matrix;
s2: adding a sensitizer, a cross-linking agent, a cross-linking accelerator and a sensitization accelerator into the latex matrix of the S1 for sensitization;
s3: the sensitized emulsion explosive is atomized and dehydrated by an atomizer under the action of high-pressure airflow;
s4: and (3) sequentially paving the emulsion explosive dehydrated in the step (S3) and a plurality of uniformly distributed organic fiber reinforced nets in a die, and extruding to obtain the high-strength plate-type emulsion explosive for underwater explosion compounding.
The high molecular polymer in S1 is polyethylene, and the addition amount is 0.5 percent of the mass of the latex matrix.
The sensitizer in S2 is perlite, and the addition amount is 0.1% of the mass of the latex matrix; the cross-linking agent is ammonium isocyanate, and the addition amount is 0.1% of the mass of the latex matrix; the addition amount of the crosslinking accelerator polyether is 0.1% of the mass of the latex matrix; the addition amount of the sensitization promoter citric acid is 0.1 percent of the mass of the latex matrix.
And S3, the water content of the emulsion explosive after atomization and dehydration is 1%.
Example 3
The invention provides a preparation method of an emulsion explosive for high-strength plate-type underwater explosion compounding, which comprises the following steps:
s1: preparing a latex matrix, and adding a high molecular polymer into the latex matrix;
s2: adding a sensitizer, a cross-linking agent, a cross-linking accelerator and a sensitization accelerator into the latex matrix of the S1 for sensitization;
s3: the sensitized emulsion explosive is atomized and dehydrated by an atomizer under the action of high-pressure airflow;
s4: and (3) sequentially paving the emulsion explosive dehydrated in the step (S3) and a plurality of uniformly distributed organic fiber reinforced nets in a die, and extruding to obtain the high-strength plate-type emulsion explosive for underwater explosion compounding.
The high molecular polymer in S1 is polyisobutene, and the addition amount is 2% of the mass of the latex matrix.
The sensitizer in S2 is glass microsphere, and the addition amount is 1% of the mass of the latex matrix; the cross-linking agent is ammonium isocyanate, and the addition amount is 1% of the mass of the latex matrix; the addition amount of the crosslinking accelerator polyether is 1% of the mass of the latex matrix; the addition amount of the sensitization promoter citric acid is 1% of the mass of the latex matrix.
And S3, the water content of the emulsion explosive after atomization and dehydration is 3%.
Comparative example
The latex matrix of this embodiment was not added with a high molecular polymer, and the other conditions were the same as in example 1.
The detonation velocity of example 1 and comparative example 1 in 12 months of storage was measured, and the results are shown in table 1.
Table 1 results of emulsion explosive detonation velocity test for different storage periods
The penetration of the emulsion explosives prepared in example 1 and comparative example 1 was also tested, and the results are shown in Table 2.
Table 2 results of emulsion explosive penetration test
| Group of | Penetration (25 ℃,150 g) 1/10mm |
| Example 1 | 195 |
| Comparative example | 265 |
As can be seen from the test results in Table 1, the invention enhances the stability and strength of the emulsion explosive by gradually forming a continuous phase body type structure under the action of the cross-linking agent by adding the high molecular polymer into the emulsion explosive.
Claims (9)
1. The preparation method of the high-strength plate-type emulsion explosive for underwater explosion compounding is characterized by comprising the following steps:
s1: preparing a latex matrix, and adding a high molecular polymer into the latex matrix;
s2: adding a sensitizer, a cross-linking agent, a cross-linking accelerator and a sensitization accelerator into the latex matrix of the S1 for sensitization;
s3: the sensitized emulsion explosive is atomized and dehydrated by an atomizer under the action of high-pressure airflow;
s4: and (3) sequentially paving the emulsion explosive dehydrated in the step (S3) and a plurality of uniformly distributed organic fiber reinforced nets in a die, and extruding to obtain the high-strength plate-type emulsion explosive for underwater explosion compounding.
2. The preparation method of the high-strength plate-type emulsion explosive for underwater explosion compounding according to claim 1, wherein the high-molecular polymer in S1 is one of silicone rubber, polyethylene and polyisobutylene, and the addition amount is 0.5-2% of the mass of the emulsion matrix.
3. The preparation method of the high-strength plate-type emulsion explosive for underwater explosion compounding according to claim 1, wherein the sensitizer in S2 is one of sodium nitrite, perlite and glass microspheres, and the addition amount is 0.1-1% of the mass of the emulsion matrix.
4. The method for preparing the high-strength plate-type emulsion explosive for underwater explosion compounding according to claim 1, wherein the cross-linking agent in S2 is ammonium isocyanate, and the addition amount is 0.1-1% of the mass of the emulsion matrix.
5. The method for preparing the high-strength plate-type emulsion explosive for underwater explosion compounding according to claim 1, wherein the crosslinking accelerator polyether in S2 is added in an amount of 0.1-1% of the mass of the emulsion matrix.
6. The method for preparing the high-strength plate-type emulsion explosive for underwater explosion compounding according to claim 1, wherein the sensitization accelerator citric acid in S2 is added in an amount of 0.1-1% of the mass of the emulsion matrix.
7. The method for preparing the high-strength plate-type emulsion explosive for underwater explosion compounding according to claim 1, wherein the water content of the emulsion explosive after atomization and dehydration in the step S3 is 1-3%.
8. An emulsion explosive for high-strength plate-type underwater explosion composite prepared by the method of any one of claims 1 to 7.
9. The use of the emulsion explosive for high-strength plate-type underwater explosive cladding as claimed in claim 8 in underwater explosive cladding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311740661.3A CN117865759A (en) | 2023-12-18 | 2023-12-18 | High-strength plate-type emulsion explosive for underwater explosion compounding and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311740661.3A CN117865759A (en) | 2023-12-18 | 2023-12-18 | High-strength plate-type emulsion explosive for underwater explosion compounding and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN117865759A true CN117865759A (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311740661.3A Pending CN117865759A (en) | 2023-12-18 | 2023-12-18 | High-strength plate-type emulsion explosive for underwater explosion compounding and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117865759A (en) |
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2023
- 2023-12-18 CN CN202311740661.3A patent/CN117865759A/en active Pending
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