CN111018639A - Smokeless and sulfur-free cold firework medicament and preparation method thereof - Google Patents
Smokeless and sulfur-free cold firework medicament and preparation method thereof Download PDFInfo
- Publication number
- CN111018639A CN111018639A CN201911255610.5A CN201911255610A CN111018639A CN 111018639 A CN111018639 A CN 111018639A CN 201911255610 A CN201911255610 A CN 201911255610A CN 111018639 A CN111018639 A CN 111018639A
- Authority
- CN
- China
- Prior art keywords
- powder
- sulfur
- smokeless
- free cold
- pentaerythritol tetranitrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C06B33/08—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 with a nitrated organic compound
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a smokeless and sulfur-free cold firework explosive and a preparation method thereof, belonging to the field of environment-friendly pyrotechnic compositions. The components comprise: nano aluminum powder, modified pentaerythritol tetranitrate, nitrated bamboo cellulose, dihydroxy glyoxime, nitrated diethanol amine, zinc stearate, dimethyl diphenyl urea and diatomite. The invention adopts the modified pentaerythritol tetranitrate powder and the nano aluminum powder as the main components, is safe and reliable, and has low combustion temperature; and the composition of chlorine and sulfur elements is not contained, and the dihydroxy glyoxime is introduced, so that the full combustion and the bright color are ensured, and the preparation of the smokeless and sulfur-free cold firework composition can be really realized.
Description
Technical Field
The invention relates to a smokeless and sulfur-free cold firework explosive and a preparation method thereof, belonging to the field of environment-friendly pyrotechnic compositions.
Background
In China, there are various kinds of body shadows of fireworks in festive festivals, large fireworks evening parties, wedding ceremonies, and stage sculpts. Among them, the cold fireworks are popular with people with the remarkable characteristics of environmental protection, no pollution, safety and reliability. The characteristics also determine that the cold firework explosive agent is a new trend of the development of the firework industry in recent years and in the future, and the development of cold fireworks has wide market prospect and huge economic benefit potential.
As is well known, the main components of the cold firework powder are ammonium perchlorate, nitrocotton, low ignition point metal powder and the like. Chloride smoke and a large amount of metal oxide dust are still generated during the set-off process, so that the respiratory system, the nervous system and the like of a human body are seriously affected, certain pollution is caused to the environment, and the environment is often irretrievable; under the condition of larger smoke release amount, even more, the discomfort of audiences or guests can be caused, and the joyous effect and the purpose of increasing the color can not be achieved. At present, cold fireworks face a dilemma of less research at home and abroad when being popular with the public. The problem treatment in the field of cold fireworks is also uneven, and the current and future market demands are difficult to meet. Zhang Ming, Zhang Hebin by designing a spraying and controlling device of colorful cold fireworks, and adopting a plurality of different metal powders as raw materials to replace commonly used gunpowder, thereby avoiding the potential safety hazard and air pollution (CN201611057463.7) which may exist in cold fireworks, but the use and insufficient combustion of a large amount of metal powders lead to a large amount of metal oxide dust, which is not good for human health and environmental protection; welsky has designed one kind and can make the stage cold cigarette flower put the in-process in point, has swung, rotatory or the device of wheel-motion, can make ordinary directly spout the fireworks become fan-shaped, toper and two strands dynamic fireworks models that rise to the coiling, and then increase stage effect (CN200620089199.0), but the device structure is complicated, the manufacturing difficulty, and is not very convenient in the use. In short, the development of cold fireworks has many problems to be solved, and the environment-friendly situation is the first place.
On the premise of ensuring cold fireworks, gorgeous and colorful firework effects and artistic modeling, the pollution to the environment and the harm to the human body caused by the firing of the cold fireworks are reduced, the release of smoke is reduced, the main contradiction to be solved urgently in the firework industry is solved, the hot spot problem and the key problem on the development road of the firework industry are solved, the demand for smoke and sulfur free of cold firework chemicals is provided, and the direction is pointed out for the development of the firework industry. Therefore, the prepared smokeless sulfur-free cold firework explosive has great social significance, practical significance and economic significance.
Disclosure of Invention
The invention provides a smokeless and sulfur-free cold firework explosive and a preparation method thereof, aiming at solving the problem of smoke pollution after the existing cold firework explosive is set off.
The purpose of the invention is realized by the following technical scheme.
A smokeless sulfur-free cold firework medicament comprises the following components in percentage by mass:
the average grain diameter of the nano aluminum powder in the components is 100nm, and the specific surface area is 49m2/g；
The nitrogen content of the nitrated bamboo cellulose in the components is 12 to 12.5 percent;
a preparation method of a smokeless and sulfur-free cold firework medicament comprises the following specific steps:
weighing nano aluminum powder, modified pentaerythritol tetranitrate, nitrified bamboo cellulose, dihydroxy glyoxime, nitrified diethanol amine, zinc stearate, dimethyl diphenylurea and diatomite according to the mass ratio of the formula;
step two, dividing the nitrated bamboo cellulose powder weighed in the step one into A, B groups according to the mass ratio of (1-5) to (10), dissolving the nitrated bamboo cellulose powder of the group A in ethyl acetate according to the mass ratio of 1:10, and stirring for 2-3 hours under the ultrasonic dispersion condition; then, continuously adding the diatomite powder and the zinc stearate powder weighed in the step one under the stirring state, and uniformly stirring to prepare a mixed sol of the nitrated bamboo cellulose;
step three, adding the modified pentaerythritol tetranitrate powder, the dihydroxy glyoxime powder, the nitrification diethanolamine powder weighed in the step one and the B group of nitrification bamboo cellulose obtained in the step two into the nitrification bamboo cellulose mixed sol obtained in the step two under the stirring and ultrasonic dispersion states, and uniformly mixing; then adding the dimethyl diphenyl urea powder and the nano aluminum powder weighed in the step one into the mixture to be uniformly mixed; then kneading, wherein a proper amount of ethyl acetate can be added in the kneading process, and the mixture is kneaded to form uniform micelle with moderate hardness;
step four, granulating the uniform micelle with moderate hardness obtained in the step three by using a double-screw granulator, airing the obtained uniform micelle in a cool and ventilated place to be half-dry, and transferring the obtained uniform micelle into a blast oven at the temperature of 80-90 ℃ for drying for 2-3 hours to obtain a crude smokeless and sulfur-free cold firework explosive;
and step five, lightly pressing and crushing the crude smokeless sulfur-free cold firework medicament obtained in the step four, sieving the crude smokeless sulfur-free cold firework medicament through a 60-mesh copper sieve, removing residues with too small particles, then sieving the crude smokeless sulfur-free cold firework medicament through a 30-mesh copper sieve, and taking residues of the 30-mesh copper sieve to obtain the smokeless sulfur-free cold firework medicament with uniform particles.
The preparation method of the modified pentaerythritol tetranitrate comprises the following steps: adding pentaerythritol tetranitrate powder and a titanate coupling agent into acetone according to the mass ratio of 1 (0.05-0.08) to 10, and performing ultrasonic dispersion for 30-50 minutes to obtain a mixed solution C; transferring the mixed solution C into an ice-water bath for stirring; then adding the polyvinyl butyral adhesive into the mixed solution C (wherein the mass ratio of pentaerythritol tetranitrate powder to the polyvinyl butyral adhesive is 1 (0.02-0.03)), and stirring for 3-5 hours; transferring the reaction device into an oil bath pan at the temperature of 60-80 ℃, standing for 20-40 minutes, and recovering the volatilized acetone; filtering, repeatedly washing for 3-5 times by using deionized water, and drying for 2-3 hours in a blast oven at 80-100 ℃; taking out, crushing under light pressure to obtain modified pentaerythritol tetranitrate powder;
the method for judging the moderate hardness comprises the following steps: after the micelle-shaped objects are extruded to pass through a 20-mesh copper sieve, the micelle-shaped objects are in a continuous thin strip shape, are not adhered with each other and have certain plasticity and tensile strength;
advantageous effects
1. A kind of smokeless and sulfur-free cold fireworks medicament, use modified pentaerythritol tetranitrate powder and nanometer aluminium powder as the principal ingredients, safe and reliable, the combustion temperature is low; the composition of chlorine and sulfur elements is not contained, and the dihydroxy glyoxime is introduced, so that the full combustion and bright color are ensured, and the preparation of the smokeless and sulfur-free cold firework composition can be really realized;
2. a smokeless and sulfur-free cold firework medicament adopts self-made nitrified bamboo cellulose, and zinc stearate, dimethyl diphenyl urea and diatomite are introduced, so that the compatibility, mechanical property and safety performance of the cold firework medicament can be effectively improved, and the excellent setting-off effect of the cold firework medicament is ensured;
3. the preparation method of the smokeless and sulfur-free cold firework explosive is simple in process, few in steps, free of three-waste emission in the production process, suitable for assembly line operation of factories, suitable for large-scale industrial production and remarkable in economic benefit and social benefit.
Detailed Description
The present invention will be described in detail with reference to examples.
Example 1
A smokeless sulfur-free cold firework agent comprises the following components in percentage by mass:
dividing 27.12g of nitrated bamboo cellulose powder into A, B groups, wherein the A group is 7.12g, the B group is 20g, dissolving the A group of nitrated bamboo cellulose powder in 71.2g of ethyl acetate, stirring for 2.5 hours under the ultrasonic dispersion condition, then continuously adding 2.91g of diatomite powder and 8.35g of zinc stearate powder under the stirring state, and uniformly stirring to obtain a nitrated bamboo cellulose mixed sol;
adding 60g of pentaerythritol tetranitrate powder and 3.2g of titanate coupling agent into 600g of acetone, and performing ultrasonic dispersion for 35 minutes to obtain a mixed solution C; transferring the mixed solution C into an ice-water bath for stirring; then adding 3.5g of polyvinyl butyral adhesive into the mixed solution C, and stirring for 3 hours; transferring the reaction device into an oil bath kettle at 60 ℃, standing for 20 minutes, and recovering the volatilized acetone; filtering, repeatedly washing with deionized water for 3 times, and drying in a forced air oven at 80 deg.C for 2.5 hr; taking out, crushing by light pressure to obtain 64.32g of modified pentaerythritol tetranitrate powder;
under the stirring and ultrasonic dispersion state, 63.71g of modified pentaerythritol tetranitrate powder, 23.95g of dihydroxy glyoxime powder, 9.42g of nitrodiethanolamine powder and B-group nitrobamboo cellulose are added into the nitrobamboo cellulose mixed sol and mixed uniformly; then 6.23g of dimethyl diphenyl urea powder and 91.50g of nano aluminum powder are added and mixed evenly; then kneading, adding 12ml of ethyl acetate in the kneading process, and kneading until the mixture is a uniform micelle with moderate hardness;
granulating the uniform paste by using a double-screw granulator, airing the paste to be half-dry in a cool and ventilated place, and then transferring the paste to a blast oven at 85 ℃ for drying for 2.5 hours to prepare 229.47g of a smokeless and sulfur-free cold firework explosive crude product;
229.47g of the crude smokeless sulfur-free cold firework medicament is crushed by light pressure, then the crude smokeless sulfur-free cold firework medicament is sieved by a 60-mesh copper sieve, screen residue with too small particles is removed, then the crude smokeless sulfur-free cold firework medicament is sieved by a 30-mesh copper sieve, screen residue of the 30-mesh copper sieve is taken, 226.28g of smokeless sulfur-free cold firework medicament with uniform particles is prepared, and the yield reaches 98.61%.
Tests prove that the obtained smokeless sulfur-free cold firework explosive has 31% of impact sensitivity (the drop height is 250 +/-1 mm, the drop weight mass is 10.0 +/-0.1 kg), 34% of friction sensitivity (the gauge pressure is 3.92MPa, the sample mass is 30mg, and the swing angle is 90 degrees), and excellent explosive charging mechanical property; the ignition temperature of the prepared cold firework finished product is normal, the burning-off effect is excellent, the measured sound level value is 62dB, no sulfur and chlorine containing substances are discharged in the burning-off process, no residue is splashed, and the environment-friendly requirement of no smoke and no sulfur is met.
Example 2
A smokeless sulfur-free cold firework agent comprises the following components in percentage by mass:
dividing 5.34kg of nitrated bamboo cellulose powder into A, B groups, wherein the A group is 1.34kg, the B group is 4kg, dissolving the A group of nitrated bamboo cellulose powder in 13.4kg of ethyl acetate, stirring for 3 hours under the ultrasonic dispersion condition, then continuously adding 0.84kg of diatomite powder and 2.11kg of zinc stearate powder under the stirring state, and uniformly stirring to obtain a nitrated bamboo cellulose mixed sol;
adding 10kg of pentaerythritol tetranitrate powder and 0.7kg of titanate coupling agent into 100kg of acetone, and performing ultrasonic dispersion for 45 minutes to obtain a mixed solution C; transferring the mixed solution C into an ice-water bath for stirring; then adding 0.21kg of polyvinyl butyral adhesive into the mixed solution C, and stirring for 4.5 hours; transferring the reaction device into an oil bath kettle at the temperature of 75 ℃, standing for 35 minutes, and recovering the volatilized acetone; filtering, repeatedly washing with deionized water for 4 times, and drying in a 90 deg.C forced air oven for 3 hr; taking out, crushing under light pressure to obtain 10.52kg of modified pentaerythritol tetranitrate powder;
under the stirring and ultrasonic dispersion state, adding 10.25kg of modified pentaerythritol tetranitrate powder, 3.28kg of dihydroxy glyoxime powder, 1.90kg of nitrodiethanolamine powder and B-group nitrobamboo cellulose into the nitrobamboo cellulose mixed sol, and uniformly mixing; then adding 1.65kg of dimethyl diphenyl urea powder and 13.84kg of nano aluminum powder into the mixture to be uniformly mixed; then kneading, adding 310ml ethyl acetate during the kneading process, and kneading until the mixture is a uniform micelle with moderate hardness;
granulating the uniform paste by using a double-screw granulator, airing the paste to be half-dry in a cool and ventilated place, and then transferring the paste to a 90 ℃ blast oven for drying for 3 hours to prepare 38.26kg of a smokeless and sulfur-free cold firework explosive crude product;
the method comprises the steps of crushing 38.26kg of crude smokeless sulfur-free cold firework medicament by light pressure, sieving by a 60-mesh copper sieve, removing screen remnants with too small particles, then sieving by a 30-mesh copper sieve, taking screen remnants of the 30-mesh copper sieve, and preparing 37.87kg of smokeless sulfur-free cold firework medicament with uniform particles, wherein the yield is 98.98%.
Tests prove that the obtained smokeless sulfur-free cold firework explosive has 32% of impact sensitivity (the drop height is 250 +/-1 mm, the drop weight mass is 10.0 +/-0.1 kg), 33% of friction sensitivity (the gauge pressure is 3.92MPa, the sample mass is 30mg, and the swing angle is 90 degrees), and excellent explosive charging mechanical property; the ignition temperature of the prepared cold firework finished product is normal, the burning-off effect is excellent, the measured sound level value is 65dB, no sulfur and chlorine containing substances are discharged in the burning-off process, no residue is splashed, and the environment-friendly requirement of no smoke and no sulfur is met.
Example 3
A smokeless sulfur-free cold firework agent comprises the following components in percentage by mass:
dividing 12.32kg of nitrated bamboo cellulose powder into A, B groups, wherein the A group is 2.32kg, the B group is 10kg, dissolving the A group of nitrated bamboo cellulose powder in 23.2kg of ethyl acetate, stirring for 2 hours under the ultrasonic dispersion condition, then continuously adding 2.21kg of diatomite powder and 4.79kg of zinc stearate powder under the stirring state, and uniformly stirring to obtain a nitrated bamboo cellulose mixed sol;
adding 24kg of pentaerythritol tetranitrate powder and 1.25kg of titanate coupling agent into 230kg of acetone, and performing ultrasonic dispersion for 35 minutes to obtain a mixed solution C; transferring the mixed solution C into an ice-water bath for stirring; then adding 0.53kg of polyvinyl butyral adhesive into the mixed solution C, and stirring for 5 hours; transferring the reaction device into an oil bath kettle at the temperature of 80 ℃, standing for 30 minutes, and recovering the volatilized acetone; filtering, repeatedly washing with deionized water for 5 times, and drying in a forced air oven at 100 deg.C for 2.5 hr; taking out, crushing under light pressure to obtain 24.85kg of modified pentaerythritol tetranitrate powder;
under the stirring and ultrasonic dispersion state, adding 24.72kg of modified pentaerythritol tetranitrate powder, 7.85kg of dihydroxy glyoxime powder, 10.52kg of nitrodiethanolamine powder and B group of nitrobamboo cellulose into the nitrobamboo cellulose mixed sol, and uniformly mixing; then adding 3.75kg of dimethyl diphenyl urea powder and 32.97kg of nano aluminum powder into the mixture and uniformly mixing; then kneading, adding 1780ml ethyl acetate during kneading, and kneading until the mixture is a uniform micelle with moderate hardness;
granulating the uniform paste by using a double-screw granulator, airing the paste to be half-dry in a cool and ventilated place, and then transferring the paste to a blast oven at the temperature of 85 ℃ for drying for 2.5 hours to prepare 98.76kg of a smokeless and sulfur-free cold firework explosive crude product;
after the 98.76kg of crude smokeless sulfur-free cold firework medicament is crushed by light pressure, the crude smokeless sulfur-free cold firework medicament is sieved by a 60-mesh copper sieve, screen residue with too small particles is removed, then the crude smokeless sulfur-free cold firework medicament is sieved by a 30-mesh copper sieve, screen residue of the 30-mesh copper sieve is taken, 97.34kg of smokeless sulfur-free cold firework medicament with uniform particles is prepared, and the yield reaches 98.56%.
Tests prove that the obtained smokeless sulfur-free cold firework explosive has the advantages that the impact sensitivity (the drop height is 250 +/-1 mm, the drop weight mass is 10.0 +/-0.1 kg) is 34 percent, the friction sensitivity (the gauge pressure is 3.92MPa, the sample mass is 30mg, and the swing angle is 90 degrees) is 36 percent, and the explosive charging mechanical property is excellent; the ignition temperature of the prepared cold firework finished product is normal, the burning-off effect is excellent, the measured sound level value is 63dB, no sulfur and chlorine containing substances are discharged in the burning-off process, no residue is splashed, and the environment-friendly requirement of no smoke and no sulfur is met.
The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A smokeless sulfur-free cold firework agent is characterized in that: the components and the occupied mass percentage are as follows:
the preparation method of the modified pentaerythritol tetranitrate comprises the following steps: adding pentaerythritol tetranitrate powder and a titanate coupling agent into acetone according to the mass ratio of 1 (0.05-0.08) to 10, and performing ultrasonic dispersion for 30-50 minutes to obtain a mixed solution C; transferring the mixed solution C into an ice-water bath for stirring; then adding the polyvinyl butyral adhesive into the mixed solution C (wherein the mass ratio of pentaerythritol tetranitrate powder to the polyvinyl butyral adhesive is 1 (0.02-0.03)), and stirring for 3-5 hours; transferring the reaction device into an oil bath pan at the temperature of 60-80 ℃, standing for 20-40 minutes, and recovering the volatilized acetone; filtering, repeatedly washing for 3-5 times by using deionized water, and drying for 2-3 hours in a blast oven at 80-100 ℃; taking out, crushing under light pressure to obtain modified pentaerythritol tetranitrate powder.
2. The smokeless and sulfur-free cold firework formulation of claim 1, wherein: the average grain diameter of the nano aluminum powder in the components is 100nm, and the specific surface area is 49m2/g。
3. The smokeless and sulfur-free cold firework formulation of claim 1, wherein: the nitrogen content of the nitrated bamboo cellulose in the components is 12 to 12.5 percent.
4. A method of preparing the smokeless and sulfur-free cold firework formulation of claim 1, 2 or 3, wherein: the method comprises the following specific steps:
weighing nano aluminum powder, modified pentaerythritol tetranitrate, nitrified bamboo cellulose, dihydroxy glyoxime, nitrified diethanol amine, zinc stearate, dimethyl diphenylurea and diatomite according to the mass ratio of the formula;
step two, dividing the nitrated bamboo cellulose powder weighed in the step one into A, B groups according to the mass ratio of (1-5) to (10), dissolving the nitrated bamboo cellulose powder of the group A in ethyl acetate according to the mass ratio of 1:10, and stirring for 2-3 hours under the ultrasonic dispersion condition; then, continuously adding the diatomite powder and the zinc stearate powder weighed in the step one under the stirring state, and uniformly stirring to prepare a mixed sol of the nitrated bamboo cellulose;
step three, adding the modified pentaerythritol tetranitrate powder, the dihydroxy glyoxime powder, the nitrification diethanolamine powder weighed in the step one and the B group of nitrification bamboo cellulose obtained in the step two into the nitrification bamboo cellulose mixed sol obtained in the step two under the stirring and ultrasonic dispersion states, and uniformly mixing; then adding the dimethyl diphenyl urea powder and the nano aluminum powder weighed in the step one into the mixture to be uniformly mixed; then kneading, wherein a proper amount of ethyl acetate can be added in the kneading process, and the mixture is kneaded to form uniform micelle with moderate hardness;
step four, granulating the uniform micelle with moderate hardness obtained in the step three by using a double-screw granulator, airing the obtained uniform micelle in a cool and ventilated place to be half-dry, and transferring the obtained uniform micelle into a blast oven at the temperature of 80-90 ℃ for drying for 2-3 hours to obtain a crude smokeless and sulfur-free cold firework explosive;
step five, crushing the crude smokeless and sulfur-free cold firework medicament obtained in the step four by light pressure, sieving the crushed crude smokeless and sulfur-free cold firework medicament through a 60-mesh copper sieve, removing residues with too small particles, then sieving the crushed crude and sulfur-free cold firework medicament through a 30-mesh copper sieve, and taking residues of the 30-mesh copper sieve to obtain the smokeless and sulfur-free cold firework medicament with uniform particles;
the method for judging the moderate hardness comprises the following steps: after the micelle is extruded to pass through a 20-mesh copper sieve, the micelle is in a continuous thin strip shape, is not adhered with each other, and has certain plasticity and tensile strength.
5. The method of claim 4, wherein: the preparation method of the modified pentaerythritol tetranitrate comprises the following steps: adding pentaerythritol tetranitrate powder and a titanate coupling agent into acetone according to the mass ratio of 1 (0.05-0.08) to 10, and performing ultrasonic dispersion for 30-50 minutes to obtain a mixed solution C; transferring the mixed solution C into an ice-water bath for stirring; then adding the polyvinyl butyral adhesive into the mixed solution C (wherein the mass ratio of pentaerythritol tetranitrate powder to the polyvinyl butyral adhesive is 1 (0.02-0.03)), and stirring for 3-5 hours; transferring the reaction device into an oil bath pan at the temperature of 60-80 ℃, standing for 20-40 minutes, and recovering the volatilized acetone; filtering, repeatedly washing for 3-5 times by using deionized water, and drying for 2-3 hours in a blast oven at 80-100 ℃; taking out, crushing under light pressure to obtain modified pentaerythritol tetranitrate powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911255610.5A CN111018639B (en) | 2019-12-10 | 2019-12-10 | Smokeless sulfur-free cold firework agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911255610.5A CN111018639B (en) | 2019-12-10 | 2019-12-10 | Smokeless sulfur-free cold firework agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111018639A true CN111018639A (en) | 2020-04-17 |
| CN111018639B CN111018639B (en) | 2023-04-25 |
Family
ID=70208314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911255610.5A Active CN111018639B (en) | 2019-12-10 | 2019-12-10 | Smokeless sulfur-free cold firework agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111018639B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673203A (en) * | 2005-02-02 | 2005-09-28 | 上海冠珠礼仪用品有限公司 | Firework spraying agent for low temperature no-smoke colored-light firework spraying pipe |
| CN103121886A (en) * | 2012-12-26 | 2013-05-29 | 南京理工大学 | Multicolor cold-firework reagent and manufacturing method of cold fireworks |
| US8470107B2 (en) * | 2010-03-31 | 2013-06-25 | Alliant Techsystems Inc. | Non-toxic, heavy-metal free explosive percussion primers and methods of preparing the same |
| CN107353174A (en) * | 2017-07-28 | 2017-11-17 | 宜兴市阳生化工有限公司 | A kind of high stability photoface exploision emulsion and preparation method thereof |
| CN108218644A (en) * | 2018-01-29 | 2018-06-29 | 泸州北方化学工业有限公司 | A kind of smokeless dulcet cold light firework medicament |
-
2019
- 2019-12-10 CN CN201911255610.5A patent/CN111018639B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673203A (en) * | 2005-02-02 | 2005-09-28 | 上海冠珠礼仪用品有限公司 | Firework spraying agent for low temperature no-smoke colored-light firework spraying pipe |
| US8470107B2 (en) * | 2010-03-31 | 2013-06-25 | Alliant Techsystems Inc. | Non-toxic, heavy-metal free explosive percussion primers and methods of preparing the same |
| CN103121886A (en) * | 2012-12-26 | 2013-05-29 | 南京理工大学 | Multicolor cold-firework reagent and manufacturing method of cold fireworks |
| CN107353174A (en) * | 2017-07-28 | 2017-11-17 | 宜兴市阳生化工有限公司 | A kind of high stability photoface exploision emulsion and preparation method thereof |
| CN108218644A (en) * | 2018-01-29 | 2018-06-29 | 泸州北方化学工业有限公司 | A kind of smokeless dulcet cold light firework medicament |
Non-Patent Citations (1)
| Title |
|---|
| 张光辉等: "《一种无硫烟花发射药的开发及应用研究》", 《火工品》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111018639B (en) | 2023-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102408619B (en) | Modified high-temperature-resistance polyvinyl chloride (PVC) cable material and preparation method thereof | |
| CN103396276A (en) | Propellant for fireworks and crackers | |
| CN102382356A (en) | Polyvinyl chloride cable material and preparation method thereof | |
| CN110981666A (en) | Smokeless and sulfur-free golden indoor setting-off type cold firework explosive and preparation method thereof | |
| CN103664075B (en) | A kind of Cracking-resistant inorganic insulation mortar | |
| CN102391567A (en) | Environmentally-friendly polyethylene cable material and preparation method thereof | |
| CN102584504A (en) | Smokeless type firework shell opening ammunition capable of improving ignition capacity and preparation method for opening ammunition | |
| CN102382355A (en) | Low-smoke environment-friendly cable material and preparation method thereof | |
| CN110981657A (en) | Antistatic smokeless sulfur-free firecracker nitrate medicament and preparation method thereof | |
| CN110937966A (en) | Multifunctional smokeless and sulfur-free firecracker propellant and preparation method thereof | |
| CN100412037C (en) | Water-mixed preparation method of deferment medicine | |
| CN111018639A (en) | Smokeless and sulfur-free cold firework medicament and preparation method thereof | |
| CN1019995C (en) | Safety colour ball flashing firecrackers | |
| CN113860975A (en) | Safety mixed ignition powder for detonator and preparation method and application thereof | |
| CN105062291B (en) | A kind of preparation method of fireproof coating | |
| CN102408618A (en) | PVC (polyvinyl chloride) cable material and its preparation method | |
| CN111056886A (en) | Antistatic treatment and preparation method of ecological-friendly cold firework explosive | |
| CN111004074A (en) | Smokeless and sulfur-free firecracker nitrate medicament and preparation method thereof | |
| CN111018640A (en) | Stabilizing treatment and preparation method of high-explosive-sound smokeless sulfur-free firecracker nitrate medicament | |
| CN110950724A (en) | Thermal-stable indoor smokeless and sulfur-free cold firework setting-off chemical and preparation method thereof | |
| CN110981668A (en) | Moisture-proof smokeless sulfur-free cold firework chemical and preparation method thereof | |
| CN104478637B (en) | A kind of safe environment protection type pyrotechnic composition reducing agent | |
| CN102408622B (en) | Low-smoke halogen-free fire resistant cable material and preparation method thereof | |
| CN110981658A (en) | Safe smokeless and sulfur-free firecracker and firecracker nitrate medicament and preparation method thereof | |
| CN110963864A (en) | Low-sensitivity smokeless and sulfur-free firecracker nitrate medicament and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |