CN114349583A - Pyrotechnic composition for fireworks and crackers and application thereof - Google Patents
Pyrotechnic composition for fireworks and crackers and application thereof Download PDFInfo
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- CN114349583A CN114349583A CN202210097984.4A CN202210097984A CN114349583A CN 114349583 A CN114349583 A CN 114349583A CN 202210097984 A CN202210097984 A CN 202210097984A CN 114349583 A CN114349583 A CN 114349583A
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- 239000000203 mixture Substances 0.000 title claims abstract description 33
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 45
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 39
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical group [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 claims abstract description 27
- 229920000642 polymer Polymers 0.000 claims abstract description 27
- 229910001487 potassium perchlorate Inorganic materials 0.000 claims abstract description 27
- 239000011343 solid material Substances 0.000 claims abstract description 24
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 23
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 23
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 23
- 235000010333 potassium nitrate Nutrition 0.000 claims abstract description 18
- 239000007800 oxidant agent Substances 0.000 claims abstract description 17
- 239000004323 potassium nitrate Substances 0.000 claims abstract description 16
- 230000001590 oxidative effect Effects 0.000 claims abstract description 14
- 239000004793 Polystyrene Substances 0.000 claims description 25
- 229920002223 polystyrene Polymers 0.000 claims description 25
- 239000003380 propellant Substances 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- -1 fuse Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 229920004933 Terylene® Polymers 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 244000025254 Cannabis sativa Species 0.000 abstract description 26
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 abstract description 25
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 abstract description 25
- 235000009120 camo Nutrition 0.000 abstract description 25
- 235000005607 chanvre indien Nutrition 0.000 abstract description 25
- 239000011487 hemp Substances 0.000 abstract description 25
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 238000010521 absorption reaction Methods 0.000 abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003610 charcoal Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 239000003638 chemical reducing agent Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 238000005422 blasting Methods 0.000 abstract description 3
- 239000003721 gunpowder Substances 0.000 abstract description 2
- 239000002023 wood Substances 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 19
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 19
- 229910052799 carbon Inorganic materials 0.000 description 18
- 229910052717 sulfur Inorganic materials 0.000 description 18
- 239000011593 sulfur Substances 0.000 description 18
- 239000002360 explosive Substances 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 229910000861 Mg alloy Inorganic materials 0.000 description 5
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- BPWIVQHIJYRBSR-UHFFFAOYSA-M potassium;hydron;terephthalate Chemical compound [K+].OC(=O)C1=CC=C(C([O-])=O)C=C1 BPWIVQHIJYRBSR-UHFFFAOYSA-M 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000249914 Hemigraphis reptans Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000010446 mirabilite Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Abstract
The invention discloses a pyrotechnic composition for fireworks and crackers and application thereof, relating to the technical field of fireworks and crackers and comprising the following components in percentage by mass: 50-77% of oxidant, 10-20% of high molecular polymer solid material, 0-3% of manganese dioxide and 0-30% of sodium benzoate; wherein the oxidant is potassium perchlorate or potassium nitrate or the combination thereof. The invention adopts the high molecular polymer solid material, the manganese dioxide and the sodium benzoate as the reducing agents to replace wood charcoal powder, hemp stalk charcoal powder, metal aluminum powder and the like adopted in the existing firework and cracker formula, obviously reduces the moisture absorption rate of the firework and cracker products, prolongs the shelf life, can effectively improve the impact sensitivity and the friction sensitivity of gunpowder, improves the safety and the product quality of the firework and cracker production, has large combustion energy and is easy to ignite; the produced fireworks and crackers not only meet the national standard, but also meet the latest standard of metal-free blasting powder for export by America.
Description
Technical Field
The invention relates to the technical field of fireworks and crackers, in particular to a pyrotechnic composition for fireworks and crackers and application thereof.
Background
The modern fireworks and crackers are products which can produce special effect after being set off by using pyrotechnic compositions as raw materials through process manufacturing. The pyrotechnic composition mainly comprises a reducing agent and an oxidizing agent, and can be added with a bonding agent, a functional additive and the like. The reducing agent used in the existing firework and cracker industry formula mainly comprises charcoal powder, hemp stalk charcoal powder, metal powder and the like, however, the hemp stalk charcoal is prepared by high-temperature air isolation production of waste hemp stalks generated by planting plant hemp, is easy to absorb moisture, contains a large amount of impurities in the product, is low in combustion speed, is not high in unit energy released by reaction with an oxidant, and produces a firework and cracker product with short shelf life; the hemp stalk carbon is mainly used for fireworks and crackers such as lead, military niter, military powder, sulfur-free emission and the like. Metal powder such as aluminum powder, aluminum-magnesium alloy powder and the like is easy to be oxidized by moisture, the safety of fireworks and crackers can be influenced by energy released by oxidation, the cost is high, and the generated economic benefit is low; the method is mainly used for producing explosive and firecrackers.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a pyrotechnic composition for fireworks and crackers and application thereof.
The invention provides a pyrotechnic composition for fireworks and crackers, which comprises the following components in percentage by mass: 50-77% of oxidant, 10-20% of high molecular polymer solid material, 0-3% of manganese dioxide and 0-30% of sodium benzoate; wherein the oxidant is potassium perchlorate or potassium nitrate or the combination thereof.
The combustion value of carbon is 32700 kJ/kg, the combustion value of aluminum is 30222 kJ/kg, the combustion value of magnesium is 24900 kJ/kg, the combustion value of hydrogen is 142500 kJ/kg, the combustion value of sulfur is 9278 kJ/kg, the combustion value of hydrogen is the largest, water is obtained after oxidation, the released energy is the largest, and high-temperature and high-pressure gas can be generated; therefore, in theory, the high molecular polymer solid material can be used as a reducing agent to completely or partially replace aluminum powder, aluminum magnesium alloy powder, carbon (hemp stalk carbon) and the like.
Preferably, the composition comprises the following components in percentage by mass: 50-77% of oxidant, 10-20% of high molecular polymer solid material, 1-3% of manganese dioxide and 10-30% of sodium benzoate; wherein the oxidant at least contains potassium perchlorate.
In the present invention, the amount ratio of potassium perchlorate in the oxidizing agent is not limited.
According to the invention, manganese dioxide can catalyze potassium perchlorate to decompose to generate oxygen, so that the full combustion of a high polymer solid material is promoted, sodium benzoate and an oxidant are selected to be mixed, so that the flash explosion phenomenon is avoided, the combustion is promoted, the safety coefficient is high, the sodium benzoate and the oxidant have synergistic effect to support combustion, and carbon powder or metal powder can be effectively replaced. In addition, potassium perchlorate, sodium benzoate and manganese dioxide are mixed with high molecular polymer, and can be exploded when being ignited without compaction, and can be exploded when being ignited by compaction or granulation.
Preferably, the high molecular polymer solid material comprises one or more of resin, plastic, chemical fiber, rubber and the above waste recycled materials.
Preferably, the high molecular polymer solid material comprises one or more of phenolic resin, polystyrene, styrene, terylene, nylon, natural rubber, styrene butadiene rubber and the waste recycled materials.
The waste reclaimed materials comprise high polymer materials containing carbon and hydrogen elements, such as natural rubber products, styrene butadiene rubber products, polystyrene foam boards, styrene mulching films, terylene in old clothes, nylon 66 woven bags and the like.
The waste reclaimed materials can be pulverized after being melted at high temperature
Preferably, the particle size of the high molecular polymer solid material is more than or equal to 50 meshes.
The particle size of the high molecular polymer solid material is controlled, so that the high molecular polymer solid material and the oxidant fully react in the presence of sufficient oxygen to release huge energy.
The invention also provides the application of the pyrotechnic composition for fireworks and crackers in military niter, military powder, lead, explosive, firecracker and sulfur-free propellant.
Specifically, the application of the pyrotechnic composition for fireworks and crackers in the military niter comprises the following components in percentage by mass: 70-77% of potassium nitrate, 5-10% of sulfur and 15-20% of high molecular polymer solid material.
Specifically, the application of the pyrotechnic composition for fireworks and crackers in the military powder comprises the following components in percentage by mass: 70-77% of potassium nitrate, 5-10% of sulfur and 15-20% of high molecular polymer solid material.
Specifically, the pyrotechnic composition for fireworks and crackers is applied to the lead, and the lead comprises the following components in percentage by mass: 50-58% of potassium perchlorate, 15-22% of high polymer solid material, 1-3% of manganese dioxide and 17-25% of sodium benzoate.
Specifically, the application of the pyrotechnic composition for fireworks and crackers in the explosive comprises the following components in percentage by mass: 56-64% of potassium perchlorate, 8-12% of sulfur, 1-3% of manganese dioxide, 12-16% of sodium benzoate and 12-17% of high polymer solid material.
Specifically, the application of the pyrotechnic composition for fireworks and crackers in the firecracker comprises the following components in percentage by mass: 68-75% of potassium perchlorate, 5-10% of sulfur, 7-12% of sodium benzoate, 1-3% of manganese dioxide and 10-15% of high polymer solid material.
Specifically, the pyrotechnic composition for fireworks and crackers is applied to the sulfur-free propellant, and the sulfur-free propellant comprises the following components in percentage by mass: 65-75% of potassium perchlorate and potassium nitrate, 1-3% of manganese dioxide, 7-15% of sodium benzoate and 15-22% of high polymer solid material; wherein the mass percentage of the potassium perchlorate to the potassium nitrate is 20-80: 80-20.
Has the advantages that: the invention adopts the high molecular polymer solid material, the manganese dioxide and the sodium benzoate as the reducing agents to replace wood charcoal powder, hemp stalk charcoal powder, metal aluminum powder and the like adopted in the existing firework and cracker formula, obviously reduces the moisture absorption rate of the firework and cracker products, prolongs the shelf life, can effectively improve the impact sensitivity and the friction sensitivity of gunpowder, improves the safety and the product quality of the firework and cracker production, has large combustion energy and is easy to ignite; the produced fireworks and crackers not only meet the national standard, but also meet the latest standard of metal-free blasting powder for export by America.
Detailed Description
The high molecular polymer solid material in the invention comprises one or more of resin, plastic, chemical fiber, rubber and the waste reclaimed materials. For example, the melting point of polyethylene is 110 ℃, the melting point of polystyrene is 240 ℃, and the melting point can be used as an adhesive, and the solvent can also be used for dissolving the adhesive. In the embodiment of the invention, the polyethylene and polystyrene foam boards are selected and respectively crushed into 250-mesh and 300-mesh for use.
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
The application of the polystyrene-containing composition in the military niter comprises the following steps: the munitions nitre comprises the following components in percentage by mass: 75% of potassium nitrate, 7% of sulfur and 18% of polystyrene powder; the preparation method comprises the steps of mixing, pressurizing, granulating and polishing the raw materials.
The military mirabilite production process on the market at present is mainly prepared by mixing, pressurizing, granulating and polishing about 75% of potassium nitrate, about 7% of sulfur and about 18% of hemp stalk carbon; the reaction principle is as follows: 2KNO3+S+3C＝K2S+N2+3CO2Wherein sulfur acts as an oxidizing agent in the reaction and a bonding effect at a temperature melting point of 120 ℃. The results were compared using a control formulation of 75% potassium nitrate, 7% sulfur and 18% hemp stalk charcoal.
In the embodiment 1 of the invention, the hemp stalk carbon is completely replaced by the polystyrene powder, and the method has the following advantages: 1. the moisture absorption rate is low, and the polystyrene is insoluble in water, so that the shelf life of the firework product is prolonged; 2. the economic benefit is good, and the polystyrene recovery waste is cheaper than hemp stalk carbon; 3. the military niter produced by polystyrene releases large energy, the generated temperature is high, the height of unit hair is higher than that of hemp stalk carbon, and the fire is easier to be connected; the military niter produced by polystyrene has the actually measured impact sensitivity of 0, friction sensitivity of 0 and moisture absorption rate of 1.1 percent (far lower than the national standard of 2.5 percent) and conforms to the national standard; the moisture absorption rate of the military niter in the control group reaches 1.8 percent.
Example 2
The application of the composition containing polystyrene in the military powder comprises the following steps: the military powder comprises the following components in percentage by mass: 75% of potassium nitrate, 7% of sulfur and 18% of polystyrene powder; the preparation method comprises the step of mixing the raw materials.
The military powder is a pre-product for producing the military saltpeter and is a coating medicine for coating the glitter, flame color metal ions such as strontium carbonate in the glitter generate red flame color reaction by igniting the military powder to generate high temperature, and the formula of the military powder is the same as that of the military saltpeter, and the chemical reaction equation is the same. Here, the effect comparison was also performed using a formulation containing 75% potassium nitrate, 7% sulfur and 18% hemp stalk charcoal as a control.
In the embodiment 2 of the invention, the military powder is produced by replacing hemp stalk carbon with polystyrene powder, the military powder has good moisture resistance, the combustion speed is better than that of the hemp stalk carbon, the actually measured 1 m distance of the control group adopting the hemp stalk carbon needs 7 seconds, while the embodiment 2 adopting polystyrene only needs 5 seconds, and the temperature generated by the military powder produced by using polystyrene in the embodiment 2 is high, the flame color reaction can be improved, the moisture absorption rate is lower than that of the hemp stalk carbon, the quality and the quality guarantee period of fireworks are improved, and the economic benefit is achieved.
Example 3
Use of a polystyrene-containing composition in a lead: a quick lead agent comprises the following components in percentage by mass: 50% of potassium perchlorate, 18% of polystyrene powder, 2% of manganese dioxide and 20% of sodium benzoate.
In the production process of the lead wires required by fireworks and crackers on the market at present, potassium perchlorate, sulfur, hemp stalk carbon and whistling agent are generally used as raw materials; specifically, taking a quick lead as an example, the formula comprises the following components in percentage by mass: potassium perchlorate of about 50 percent, hemp stalk carbon of about 20 percent and potassium hydrogen terephthalate of about 30 percent. The results were compared with those of a control group prepared by using a formulation containing 50% of potassium perchlorate, 20% of hemp stalk charcoal and 30% of potassium hydrogen terephthalate.
In the embodiment 3 of the invention, manganese dioxide, sodium benzoate and polystyrene are combined to replace hemp stalk carbon and potassium hydrogen terephthalate to produce the quick lead, the produced lead has faster burning speed than that of the lead produced by hemp stalk carbon, can burn 1 meter of lead in less than 1 second and has the moisture absorption rate of less than 1.3 percent; the shelf life of the product is prolonged, and the economic benefit is improved; and because sodium benzoate is used for replacing potassium hydrogen terephthalate, the lead safety is improved; in addition, the lead produced in this embodiment 3 is high in energy and temperature generated by combustion, and the phenomenon of fire extinguishing of fireworks and crackers is improved. While the moisture absorption rate in the control group can reach 1.9%.
Example 4
Use of a polystyrene-containing composition in crackers: the firecracker medicament comprises the following components in percentage by mass: 70% of potassium perchlorate, 8% of sulfur, 10% of sodium benzoate, 2% of manganese dioxide and 10% of polystyrene powder.
The production formula (mass percent) of the firecrackers on the market at present is as follows: about 70% of potassium perchlorate, about 12% of sulfur and about 18% of aluminum powder. The results were compared with those of a control group prepared by mixing 70% potassium perchlorate, 12% sulfur and 18% aluminum powder.
In the embodiment 4 of the invention, manganese dioxide, sodium benzoate and polystyrene are adopted to completely replace aluminum powder and partially replace the dosage of sulfur powder, the explosion response rate of the produced firecracker is more than 99%, the production safety is higher than the original one, and the moisture absorption rate is less than 1.0%.
Example 5
The application of the polystyrene-containing composition in the firework explosive comprises the following steps: a firework blasting powder comprises the following components in percentage by mass: 60% of potassium perchlorate, 10% of sulfur, 2% of manganese dioxide, 14% of sodium benzoate and 14% of polystyrene.
The explosive is used for exploding the paillette to present flame reaction in the air, and the scattering distance is more than 12 m. The fireworks explosive in the current market has the formula (mass percentage) of about 60 percent of potassium perchlorate, about 10 percent of sulfur, about 15 percent of aluminum powder and about 15 percent of aluminum-magnesium alloy powder. Here, the effect comparison was performed using a formulation of 60% potassium perchlorate, 10% sulfur, 15% aluminum powder and 15% aluminum magnesium alloy powder as a control.
In the embodiment 5 of the invention, manganese dioxide, sodium benzoate and polystyrene are adopted to completely replace aluminum powder and aluminum-magnesium alloy powder, the firing rate of the prepared explosive is more than 99%, the explosion response rate is more than 99%, the moisture absorption rate is less than 1.0%, the explosion initiating glitter flies out for more than 12m, and the glitter is well ignited.
Example 6
Use of a polyethylene-containing composition in a sulfur-free propellant: a sulfur-free propellant powder comprises the following components in percentage by mass: 70% of potassium perchlorate and potassium nitrate, 2% of manganese dioxide, 10% of sodium benzoate and 18% of polyethylene; wherein, the mass ratio of potassium perchlorate to potassium nitrate is 6: 4.
the proportion (mass percent) of the sulfur-free propellant in the market at present is as follows: potassium perchlorate and potassium nitrate account for about 70 percent, flute tone agent about 10 percent and hemp stalk charcoal about 20 percent. The effect comparison is carried out by adopting a formula of 70 percent of potassium perchlorate and potassium nitrate, 10 percent of flute tone agent and 20 percent of hemp stalk carbon as a control group.
In the embodiment 6 of the invention, manganese dioxide, sodium benzoate and polyethylene are adopted to completely replace hemp straws and the like, and the sulfur-free propellant powder can be produced by dissolving polyethylene and granulating by using a solvent, and the moisture absorption rate of the sulfur-free propellant powder is less than 1.0 percent.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and the polymer solid used is not limited to polyethylene and polystyrene, but also can be polymer solid such as resin, plastic, chemical fiber, rubber, and the above waste recycled materials; the formulation proportion of the military niter, the military powder, the lead, the explosive, the firecracker, the sulfur-free propellant and the like is not limited to the range disclosed by the invention; any person skilled in the art should be able to substitute or change the technical solution of the present invention and its inventive concept within the technical scope of the present invention.
Claims (6)
1. The pyrotechnic composition for fireworks and crackers is characterized by comprising the following components in percentage by mass: 50-77% of oxidant, 10-20% of high molecular polymer solid material, 0-3% of manganese dioxide and 0-30% of sodium benzoate; wherein the oxidant is potassium perchlorate or potassium nitrate or the combination thereof.
2. The pyrotechnic composition for fireworks and crackers as claimed in claim 1, which comprises the following components in percentage by mass: 50-77% of oxidant, 10-20% of high molecular polymer solid material, 1-3% of manganese dioxide and 10-30% of sodium benzoate; wherein the oxidant at least contains potassium perchlorate.
3. The pyrotechnic composition for fireworks and crackers as claimed in claim 1 or 2, wherein the high molecular polymer solid material comprises one or more of resin, plastic, chemical fiber, rubber and waste recycled materials.
4. The pyrotechnic composition for fireworks and crackers as claimed in claim 3, wherein the high molecular polymer solid material comprises one or more of phenolic resin, polystyrene, styrene, terylene, nylon, natural rubber, styrene butadiene rubber and waste recycled materials.
5. The pyrotechnic composition for fireworks and crackers as claimed in claim 1 or 2, wherein the particle size of the high molecular polymer solid material is not less than 50 mesh.
6. Use of the pyrotechnic composition as claimed in any one of claims 1 to 5 in munitions, munitions powder, fuse, primer, crackers, sulfur-free propellants.
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| US8585838B1 (en) * | 2008-04-28 | 2013-11-19 | Blew Chip Holdings Pty Ltd. | Explosive composition |
| CN108892598A (en) * | 2018-07-30 | 2018-11-27 | 醴陵红天新型材料有限公司 | A kind of no sulphur is without phosphorus to open quick-fried medicine and preparation method thereof |
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2022
- 2022-01-27 CN CN202210097984.4A patent/CN114349583A/en active Pending
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| CN102076633A (en) * | 2008-04-28 | 2011-05-25 | 爆炸片控股私人有限公司 | Improved explosive composition |
| US8585838B1 (en) * | 2008-04-28 | 2013-11-19 | Blew Chip Holdings Pty Ltd. | Explosive composition |
| CN101987803A (en) * | 2009-08-07 | 2011-03-23 | 李忠良 | Novel oxidant for fireworks and preparation method thereof |
| CN108892598A (en) * | 2018-07-30 | 2018-11-27 | 醴陵红天新型材料有限公司 | A kind of no sulphur is without phosphorus to open quick-fried medicine and preparation method thereof |
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