WO2019205996A1

WO2019205996A1 - Contamination residue-free easily-degradable environmentally-friendly firecracker and manufacturing method therefor

Info

Publication number: WO2019205996A1
Application number: PCT/CN2019/082967
Authority: WO
Inventors: 张敬敏
Original assignee: 微山宏瑞电力科技有限公司
Priority date: 2018-04-25
Filing date: 2019-04-17
Publication date: 2019-10-31
Also published as: CN108645287B; CN108645287A

Abstract

Disclosed are a contamination residue-free easily-degradable environmentally-friendly firecracker and a manufacturing method therefor. The environmentally-friendly firecracker comprises five structural layers from outside to inside, which are a fixed structure, a liquid film layer, an initial combustion layer, a sealing layer, and a secondary burning explosion layer, respectively, wherein the fixed structure is specifically an EAA mesh layer; the liquid film layer is specifically a non-vulcanized EPDM film; the initial combustion layer is specifically a mixing layer formed by mixing a solid organic salt with a mixed liquid which is formed by mixing absolute ethyl alcohol and hydrogen peroxide having a solute mass fraction of 60% in a volume ratio of 1 : 10; and the sealing layer is specifically a mixing layer of an EAA, a non-vulcanized EPDM film, and a bsr which are mixed in a mass ratio of 6 : 2 : 2. The firecracker has a good bursting effect and green and nuisanceless raw materials, and the residue thereof is easily degraded, and the comburent thereof is harmless.

Description

Environmental protection firecracker capable of degrading non-polluting residue and manufacturing method thereof

Technical field

The invention relates to the field of special materials, in particular to an environmentally-friendly firecracker which is easy to degrade without pollution residue and a manufacturing method thereof.

Background technique

The environmentally-friendly firecrackers in the prior art generally refer to colored firecrackers made of electrically driven cement-based materials. The colored firecrackers are a new type of high-efficiency and safe colored firecrackers, which are not only colorful but also environmentally friendly. The traditional firecracker production process is complex, slow and costly. Especially the dispensing is very dangerous, which often causes hidden dangers and harms. The appearance of colored firecrackers has changed this situation. The colored firecrackers will display a colorful and dazzling color, which is very beautiful and safe to discharge. This safe salute is very cheap and personalized, and it is a new choice of firecracker. However, even if it is a colored firecracker, according to the Shanghai Municipal Bureau of Quality and Technical Supervision, it has conducted risk monitoring on electronic firecrackers. According to the data analysis, as of February 2018, the electronic firecrackers on the market did not meet the national security requirements, and the non-conforming items Most of them are basic safety items, such as structural requirements for protection against electric shock, clearance and creepage distance, electrical strength, power connection and external cord, and plug type size. If these items do not meet the requirements, they may cause electric shock or even fire, resulting in physical disability, burns and even death.

technical problem

The environmentally-friendly firecrackers in the prior art are limited by the lack of technical fields and practical experience. The environmentally-friendly firecrackers in the full sense have not yet appeared. Therefore, there is still no bursting effect on the market, the raw materials are green and pollution-free, and the residues are easily degraded. Environmentally friendly firecrackers that are harmless to burning.

Technical solution

Therefore, there is an urgent need in the market for an environmentally friendly firecracker with good bursting effect, green and non-polluting raw materials, easy degradation of residues, and harmless burning materials. A method for manufacturing environmentally-friendly firecracks capable of degrading non-polluting residues includes the following steps:

1) Raw material preparation

1 Preparing sufficient amount of absolute ethanol, oxygen, 5-ethylidene-2-norbornene, ethylene, propylene, acrylic acid, biodegradable starch resin bsr, solid paper core and paraffin mixed with activated carbon powder;

2) Manufacture of the structure

1 5-ethylidene-2-norbornene, ethylene, propylene are polymerized at a mass ratio of 1:10:9, and left unused without vulcanization to obtain a non-sulfide EPDM rubber to be used;

2 Ethylene and acrylic acid are polymerized in a mass ratio of 2:3 and extruded into EAA wire with a diameter of 1.5mm-2mm, and the obtained EAA wire is woven into the mesh basket with a mesh gap of 1mm-1.5mm according to the outer shape of the desired firecracker. Structure, get the basket to be used;

3 Polymerization of ethylene and acrylic acid to EAA in a mass ratio of 7:3, non-sulfide EPDM rubber prepared in step 1 in EAA or molten pool state, and biodegradable starch resin prepared in step 1) in step 1) Bsr is mixed into the molten pool and stirred evenly. The mixing ratio is EAA / non-sulfurized ethylene propylene diene monomer / bsr is 6/2/2; the molten pool is uniformly molded into a hollow mold shell. The outer shape of the hollow mold shell is 1/2-2/3 of the volume of the desired firecracker;

4 Mixing anhydrous ethanol with hydrogen peroxide with a solute mass fraction of 60% in a volume ratio of 1:10, and then mixing with a solid organic salt powder having a total mass of 1%-3% by mass of the mixture, and injecting the gas pressure detecting device. As the raw material A in the gas device; the sodium hydroxide hot liquid having a mass fraction of 50% to 60% is used as the raw material B, and the hot liquid is specifically an aqueous solution having a temperature of 80 ° C to 90 ° C;

5 In a vacuum environment, the air in the hollow mold shell obtained in the step 3 is extracted by a needle type syringe, and then injected into the hollow mold shell through a small diameter hollow needle having a hole diameter of 0.2 mm to 0.3 mm by using a gas delivery device provided with a gas pressure detecting device. The raw material A obtained in the step 4 is completely filled into the inner space of the hollow mold shell, and then slowly exits the small diameter hollow needle until the fine diameter hollow needle tip is retracted to the solid body of the hollow mold shell, and the slow infusion step 4 is obtained. Raw material B, sealing the pinhole and hardening the pinhole, and obtaining a composite secondary explosion layer to be used for the sealing layer;

6, the non-vulcanized ethylene propylene diene monomer obtained in step 1 is injection molded into a balloon-shaped hollow single-sided open film which is compatible with the inner wall of the basket to be used obtained in step 2, to obtain a liquid film layer to be used;

3) Environmental firecracker manufacturing

1 The phase 2) step 5 obtained for the sealing layer composite secondary explosive layer is placed in the liquid film layer to be obtained in step 2), and the outer surface of the liquid film layer is set in step 2). The basket to be used is then injected into the liquid film layer to be used in step 2). The raw material A obtained in step 4 is adhered to the outer wall of the liquid layer to be used and the inner wall of the basket to be used, and then prepared in step 1). The solid core of the fire paper wrapped with activated carbon powder is inserted into the open end, and the joint of the open end of the paraffin wax and the solid core of the fire paper is used to obtain the prefabricated firecracker;

2 The outer packaging and the coloring of the pre-made firecrackers obtained in step 1 are obtained, and the environmentally-friendly firecrackers which are easily degraded by the non-polluting residue are obtained.

In the method for producing environmentally-friendly firecracks in which the above-mentioned non-polluting residue is easily degraded, the solid organic salt is specifically an organic substance containing potassium, sodium, copper and calcium, and a solid organic salt containing a corresponding metal element is selected according to a desired flame color requirement.

The environmentally-friendly firecracker which is easily degraded by the above method and has non-polluting residue includes five structural layers, which are a fixed structure, a liquid film layer, an initial combustion layer, a sealing layer and a secondary explosion layer, respectively; The fixing structure is specifically an EAA mesh layer in which ethylene and acrylic acid are copolymerized in a mass ratio of 2:3, and the mesh layer is specifically a basket having a mesh gap of 1 mm to 1.5 mm fixed on the outer surface of the liquid film layer; It is a non-sulfide EPDM film copolymerized with 5-ethylidene-2-norbornene, ethylene and propylene at a mass ratio of 1:10:9; the initial combustion layer is specifically anhydrous ethanol and a solute mass fraction of 60%. The hydrogen peroxide is mixed in a volume ratio of 1:10 to form a mixed layer which is mixed with the solid organic salt; the sealing layer is specifically divided into three parts, and the three parts are physically combined with each other, and the three parts are specifically reinforcements, A stabilizer and a degradation promoter which are mixed at a mass ratio of 6:2:2 to form a sealing layer, wherein the reinforcement is EAA copolymerized with ethylene and acrylic acid in a mass ratio of 7:3, and the stabilizer is specifically 5-ethylene- 2-norbornene, ethylene and propylene copolymerized by mass ratio 1:10:9 Sulfurized ethylene propylene diene monomer, the degradation promoter is biodegradable starch resin bsr; the secondary blast layer is specifically anhydrous ethanol and the solute mass fraction of 60% hydrogen peroxide is mixed in a volume ratio of 1:10 to form 7 times - A mixed gas layer mixed with a solid organic salt after 8 times atmospheric pressure.

In the above-mentioned environmentally-friendly firecrackers in which the non-polluting residue is easily degraded, the solid organic salt is specifically an organic substance containing potassium, sodium, copper and calcium, and a solid organic salt containing a corresponding metal element is selected according to the required flame color.

Compared with the prior art, the present invention has the following advantages due to the adoption of the above technical solutions: (1) a rough combination of gunpowder, flammable metal (such as magnesium) and paper roll different from conventional firecrackers, and different from the prior art The colored firecrackers made of electrically driven cement-based materials also have great safety hazards. The invention adopts the structure of the original firecrackers, and improves the firecracker structure, replaces the raw materials, and replaces the scattered on the basis of the existing whip original flow. The flower driving method is improved in several directions. The obtained environmental firecrackers have neither safety problems that are difficult to overcome, and are completely pollution-free and pollution-free. They are the best alternative to the existing technology and conventional firecrackers, and the market application prospects are also very good. (2) All of the EPDM rubbers of the specific ratio of the present invention are all raw materials containing only C, H, and O elements, and the EPDM rubbers configured according to the ratios provided by the present invention have elongation and anti-aging. Both the properties and the airtightness are excellent. It is worth mentioning that the present invention deliberately omits the vulcanization process (all EPDM rubbers in the prior art are inevitably vulcanized to ensure their mechanical properties and chemical stability). The ethylene propylene diene rubber used in the invention has low strength, poor chemical stability, good toughness and good air tightness, and is a special choice consistent with the technical purpose required by the present invention (ethylene propylene diene monomer according to the present invention) In terms of the actual effect, it plays the role of softening buffer and low-pressure sealing. It is even obvious that during the firecracker discharge process, if the chemical stability of EPDM rubber is better, it is not conducive to combustion, but not vulcanized. The EPDM rubber is a relatively flammable material), and because it is not vulcanized, it further reduces production pollution and combustion pollution. (3) As the skeleton and support structure, EAA, that is, ethylene acrylic acid copolymer, which has different properties according to the ratio of ethylene and acrylic acid in the polymerization raw material, wherein the high ethylene ratio is high in strength and rigidity. However, it is brittle, fragile, and powdery. The high ratio of acrylic acid has good toughness and high elastic limit, but the rigidity is poor and the chemical stability is poor. (4) The use of hot alkali solution sealing utilizes the principle that EAA encounters the full melting and brittleness of the concentration of hot alkali in the case of high ethylene compounding ratio, and seals the pores left by the hollow hollow needle, and at the same time compensates the volume. The lack of brittle hardening of the hole enhances the sealing strength, and is simple and easy to implement. The sealing effect is excellent because it fully utilizes the fluidity of the liquid and the filling ability under high pressure, due to the secondary explosion layer of the core and The structure of the sealing layer is consistent, and it can be transported as a part of the parts after the production process in different places. It is executed in simple steps with other parts, which greatly simplifies the production process, reduces the safety hazard, and reduces the production threshold. Conducive to market application and promotion, practical. (5) Directly combining anhydrous ethanol with hydrogen peroxide, utilizing the characteristics of a wide range of anhydrous ethanol, and not reacting with hydrogen peroxide at normal temperature (even if a small amount of hydrogen peroxide is decomposed in the shock, it will not release oxygen to break the sealing layer and The liquid film layer, but reacts with ethanol to form acetaldehyde during decomposition, the overall volume is almost unchanged), and the volume ratio with hydrogen peroxide is set to 1:6 (the ratio of 60% concentration to 1:10 volume ratio is exactly) The ratio of the most complete combustion is also the ratio between stability and instability (excessive concentration of hydrogen peroxide is more oxidizing, and it is easy to react with ethanol at a lower temperature of about 80 ° C, and the risk is high, and The concentration mixture of the present invention has a burning point of 170 ° C - 190 ° C, which is much higher than 70 ° C of the black powder used in conventional firecrackers, or 40 ° C of phosphorus ignition. Therefore, the safety is excellent under normal conditions due to the gasified anhydrous ethanol. The combustible heat is not high, and the space ratio after combustion is low, so the risk is also low (far less than 4 gram of combustion of black powder, 280 liters of gas is produced, the volume can be expanded by nearly 10,000 times, and the gas released by the present invention is about For the original 175 times -190 times the combined volume of the solution); the other hand, there will be no security issues dielectric and electron production threshold issue firecrackers. (6) The present invention rationally utilizes the intrinsic properties and properties of the material, and utilizes the mechanical strength of EAA at a tensile strength of about 20 MPa (200 times atmospheric pressure) and the reaction with ethanol without ethylene (7:3). The seal does not require a combustible mixture of combustion improver, and it uses non-vulcanized EPDM rubber and bsr to reduce its chemical stability, making it more flammable. At the same time, using the accelerated degradation principle of bsr, the residue after firecracker can be naturally Degradation (the burned portion has been decomposed into carbon dioxide and water), and at the same time, the organic matter of the present invention is not easily pulverized into a dust-contaminated environment when burned, and thus the environmental protection property is excellent. (7) The fire paper is flammable but will burn out quickly. It can be used as a fire guide. The activated carbon is flammable and has strong thermal conductivity. It can conduct the high temperature of the combustion of the fire paper into the initial combustion layer, and at the same time, it is continuously used as a heat source in the form of Mars. Initiating new combustion, promoting more complete combustion, and then the initial combustion layer will burn violently due to its own combustion-supporting agent (hydrogen peroxide quickly decomposes oxygen), resulting in initial injection and high temperature, melting and burning the sealing layer, releasing the secondary The explosion layer is subjected to secondary intense combustion and high-pressure gas explosion, and the bursting layer is rich, and the sound and light effect is good. (8) The burst drive of the present invention is mainly a gas explosion generated by thermal energy and an original gas jet (but the expansion ratio is much lower than that of a conventional conventional firecracker, and the risk is low), and the source of the colored light is the natural flame of the metal ion in the organic salt. Color, the effect of the fire is the same as that of conventional firecrackers, not the analog sound of electronic firecrackers, more atmosphere, and the safety is much higher than conventional firecrackers and electronic firecrackers (mainly anti-electric shock structural requirements, clearance and creepage distance, electrical strength, Power connection and external cord and plug type size, etc.). Therefore, the invention has the characteristics of good bursting effect, green pollution of raw materials, easy degradation of residues, and harmless combustion products.

Beneficial effect

The invention aims to provide an environmental firecracker with good bursting effect, green and non-polluting raw materials, easy degradation of residues and harmless combustion products. In order to achieve the above object, the present invention adopts the following technical solution: a method for manufacturing an environmentally friendly firecracker which is easily degraded without pollution residue,

DRAWINGS

Enter the description of the description of the paragraph here.

BEST MODE FOR CARRYING OUT THE INVENTION

Example 1:

An environmentally-friendly firecracker capable of degrading non-polluting residue, the environmental firecracker comprises five structural layers from the outside and the inside, respectively, a fixed structure, a liquid film layer, an initial combustion layer, a sealing layer, a secondary explosion layer; An EAA mesh layer copolymerized with ethylene and acrylic acid in a mass ratio of 2:3, wherein the mesh layer is specifically a mesh basket fixed to the outer surface of the liquid film layer with a mesh gap of 1.5 mm; the liquid film layer is specifically 5-A Non-sulfurized ethylene propylene diene rubber film copolymerized with base-2-norbornene, ethylene and propylene at a mass ratio of 1:10:9; the initial combustion layer is specifically anhydrous ethanol and hydrogen peroxide with a solute mass fraction of 60% is 1:10 The volume ratio is mixed to form a mixed layer mixed with solid organic salt sodium acrylate, calcium acrylate, and methyl potassium; the sealing layer is specifically divided into three parts, and the three parts are physically combined with each other, and the three parts are specifically As a reinforcement, a stabilizer and a degradation promoter, they are a sealing layer after being mixed at a mass ratio of 6:2:2, wherein the reinforcement is EAA copolymerized with ethylene and acrylic acid in a mass ratio of 7:3, and the stabilizer is specifically 5- Ethylene-2-norbornene, ethylene, propylene by mass ratio 1:10 : 9 copolymerized non-sulfide EPDM rubber, the degradation promoter is biodegradable starch resin bsr; the secondary explosion layer is specifically anhydrous ethanol and the solute mass fraction of 60% hydrogen peroxide is 1:10 volume ratio The mixture was mixed to form a mixed gas layer mixed with a solid organic salt of sodium acrylate, calcium acrylate, and potassium methylate at 7 times atmospheric pressure.

The manufacturing method of the environmentally-friendly firecracker which is easy to degrade by the above non-polluting residue comprises the following steps:

1) Raw material preparation

2) Manufacture of the structure

2 Ethylene and acrylic acid were polymerized in a mass ratio of 2:3 and extruded into EAA wire with a diameter of 1.5 mm. The obtained EAA wire was woven into a mesh basket structure with a mesh gap of 1.5 mm according to the outer shape of the desired firecracker. Use a basket

3 Polymerization of ethylene and acrylic acid to EAA in a mass ratio of 7:3, non-sulfide EPDM rubber prepared in step 1 in EAA or molten pool state, and biodegradable starch resin prepared in step 1) in step 1) Bsr is mixed into the molten pool and stirred evenly. The mixing ratio is EAA / non-sulfurized ethylene propylene diene monomer / bsr is 6/2/2; the molten pool is uniformly molded into a hollow mold shell. The outer shape of the hollow mold shell is 1/2 of the volume of the desired firecracker;

4 Mixing anhydrous ethanol with hydrogen peroxide with a solute mass fraction of 60% in a volume ratio of 1:10 and then with a total mass of 1% sodium acrylate, calcium acrylate, and methyl potassium at a mass ratio of 1:1:1. The mixed solid organic salt powder is mixed and injected into the gas conveying device provided with the gas pressure detecting device as the raw material A; the sodium hydroxide hot liquid having the mass fraction of 50% is used as the raw material B, and the hot liquid is specifically at a temperature of 80 ° C. Aqueous solution

5, in a vacuum environment, using a needle-type syringe to extract the air in the hollow mold shell obtained in step 3, and then using a gas delivery device provided with a gas pressure detecting device to inject a small diameter hollow needle having a diameter of 0.3 mm into the hollow mold shell to obtain step 4 Raw material A, to the inner space of the hollow mold shell is completely filled, and then slowly withdraw from the small diameter hollow needle, until the small diameter needle tip is retracted to contact with the solid body in the hollow mold shell, the raw material B obtained in step 4 is slowly instilled, Sealing the pinhole and hardening the pinhole to obtain a composite secondary explosion layer to be used;

3) Environmental firecracker manufacturing

2 The outer packaging and the coloring of the pre-made firecrackers obtained in step 1 are obtained, and the environmentally-friendly firecrackers which are easily degraded by the non-polluting residue are obtained. Note: The optional range of solid organic salts includes organic substances containing potassium, sodium, copper and calcium, such as sodium acrylate, methyl potassium, copper pyridinium acetate, etc., and solid organic salts containing corresponding metal elements are selected according to the required flame color. Among them, potassium is purple, sodium is yellow, copper is blue-green (shifted in blue and green depending on the price), and calcium is red. (The same below, no longer repeat)

Embodiments of the invention

Example 2

The whole is consistent with the first embodiment, the difference is that the initial combustion layer is specifically anhydrous ethanol and the solute mass fraction of 60% hydrogen peroxide is mixed in a volume ratio of 1:10 to form a mixed solution with the solid organic salt methyl sodium and pyridine acetate. a mixed layer of copper and potassium acrylate; the secondary blast layer is specifically anhydrous ethanol and a solute mass fraction of 60% hydrogen peroxide is mixed at a volume ratio of 1:10 to form 8 times atmospheric pressure, and the solid organic salt methyl sodium, A mixed gas layer of copper pyridinium acetate and potassium acrylate.

2) Manufacture of the structure

2 Ethylene and acrylic acid were polymerized and extruded into a 2 mm diameter EAA wire in a mass ratio of 2:3, and the obtained EAA wire was woven into a basket structure with a mesh gap of 1 mm according to the outer shape of the desired firecracker, and the mesh was obtained. basket;

3 Polymerization of ethylene and acrylic acid to EAA in a mass ratio of 7:3, non-sulfide EPDM rubber prepared in step 1 in EAA or molten pool state, and biodegradable starch resin prepared in step 1) in step 1) Bsr is mixed into the molten pool and stirred evenly. The mixing ratio is EAA / non-sulfurized ethylene propylene diene monomer / bsr is 6/2/2; the molten pool is uniformly molded into a hollow mold shell. The hollow mold shell has an outer volume of 2/3 of the volume of the desired firecracker;

4 Mixing anhydrous ethanol with hydrogen peroxide with a solute mass fraction of 60% in a volume ratio of 1:10 and then with a total mass of 3% by weight of methyl methoxide, copper pyridinium acetate and potassium acrylate at a mass ratio of 1:1: 1 proportion of the solid organic salt powder is mixed, injected into the gas delivery device provided with the air pressure detecting device as the raw material A; the sodium hydroxide hot liquid having the mass fraction of 60% is used as the raw material B, and the hot liquid is specifically the temperature of 90 ° C Aqueous solution

5 In a vacuum environment, the air in the hollow mold shell obtained in the step 3 is extracted by a needle type syringe, and then the gas inlet device provided with the air pressure detecting device is injected into the hollow mold shell through the small diameter hollow needle having a diameter of 0.2 mm to obtain step 4; Raw material A, to the inner space of the hollow mold shell is completely filled, and then slowly withdraw from the small diameter hollow needle, until the small diameter needle tip is retracted to contact with the solid body in the hollow mold shell, the raw material B obtained in step 4 is slowly instilled, Sealing the pinhole and hardening the pinhole to obtain a composite secondary explosion layer to be used;

3) Environmental firecracker manufacturing

Industrial applicability

Type the industrial usability description paragraph here.

Sequence table free content

The above description of the disclosed embodiments is provided to enable a person skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

Claims

The invention relates to a method for manufacturing environmentally-friendly firecracks which is easy to degrade without pollution residue, and is characterized in that the following steps are included:

1) Raw material preparation

1 Preparing sufficient amount of absolute ethanol, oxygen, 5-ethylidene-2-norbornene, ethylene, propylene, acrylic acid, biodegradable starch resin bsr, solid paper core and paraffin mixed with activated carbon powder;

2) Manufacture of the structure

1 5-ethylidene-2-norbornene, ethylene, propylene are polymerized at a mass ratio of 1:10:9, and left unused without vulcanization to obtain a non-sulfide EPDM rubber to be used;

2 Ethylene and acrylic acid are polymerized in a mass ratio of 2:3 and extruded into EAA wire with a diameter of 1.5mm-2mm, and the obtained EAA wire is woven into the mesh basket with a mesh gap of 1mm-1.5mm according to the outer shape of the desired firecracker. Structure, get the basket to be used;

3 Polymerization of ethylene and acrylic acid to EAA in a mass ratio of 7:3, non-sulfide EPDM rubber prepared in step 1 in EAA or molten pool state, and biodegradable starch resin prepared in step 1) in step 1) Bsr is mixed into the molten pool and stirred evenly. The mixing ratio is EAA / non-sulfurized ethylene propylene diene monomer / bsr is 6/2/2; the molten pool is uniformly molded into a hollow mold shell. The outer shape of the hollow mold shell is 1/2-2/3 of the volume of the desired firecracker;

4 Mixing anhydrous ethanol with hydrogen peroxide with a solute mass fraction of 60% in a volume ratio of 1:10, and then mixing with a solid organic salt powder having a total mass of 1%-3% by mass of the mixture, and injecting the gas pressure detecting device. As the raw material A in the gas device; the sodium hydroxide hot liquid having a mass fraction of 50% to 60% is used as the raw material B, and the hot liquid is specifically an aqueous solution having a temperature of 80 ° C to 90 ° C;

5 In a vacuum environment, the air in the hollow mold shell obtained in the step 3 is extracted by a needle type syringe, and then injected into the hollow mold shell through a small diameter hollow needle having a hole diameter of 0.2 mm to 0.3 mm by using a gas delivery device provided with a gas pressure detecting device. The raw material A obtained in the step 4 is completely filled into the inner space of the hollow mold shell, and then slowly exits the small diameter hollow needle until the fine diameter hollow needle tip is retracted to the solid body of the hollow mold shell, and the slow infusion step 4 is obtained. Raw material B, sealing the pinhole and hardening the pinhole, and obtaining a composite secondary explosion layer to be used for the sealing layer;

6, the non-vulcanized ethylene propylene diene monomer obtained in step 1 is injection molded into a balloon-shaped hollow single-sided open film which is compatible with the inner wall of the basket to be used obtained in step 2, to obtain a liquid film layer to be used;

3) Environmental firecracker manufacturing

1 The phase 2) step 5 obtained for the sealing layer composite secondary explosive layer is placed in the liquid film layer to be obtained in step 2), and the outer surface of the liquid film layer is set in step 2). The basket to be used is then injected into the liquid film layer to be used in step 2). The raw material A obtained in step 4 is adhered to the outer wall of the liquid layer to be used and the inner wall of the basket to be used, and then prepared in step 1). The solid core of the fire paper wrapped with activated carbon powder is inserted into the open end, and the joint of the open end of the paraffin wax and the solid core of the fire paper is used to obtain the prefabricated firecracker;

2 The outer packaging and the coloring of the pre-made firecrackers obtained in step 1 are obtained, and the environmentally-friendly firecrackers which are easily degraded by the non-polluting residue are obtained.
The method for manufacturing environmentally-friendly firecracks capable of degrading non-polluting residue according to claim 1, wherein the solid organic salt is specifically an organic substance containing potassium, sodium, copper and calcium, and is selected according to the required flame color. A solid organic salt containing a corresponding metal element.
The environmentally-friendly firecracker which is easy to degrade by the pollution-free residue manufactured by the method of claim 1 is characterized in that: the environmental firecracker comprises five structural layers from the outside and the inside, respectively, a fixed structure, a liquid film layer, an initial combustion layer, and a seal. The layer and the secondary explosion layer; the fixed structure is specifically an EAA mesh layer copolymerized with ethylene and acrylic acid in a mass ratio of 2:3, and the mesh layer is specifically fixed on the outer surface of the liquid film layer with a mesh gap of 1 mm to 1.5 mm. The liquid crystal layer is specifically a non-sulfide EPDM film copolymerized with 5-ethylidene-2-norbornene, ethylene and propylene at a mass ratio of 1:10:9; the initial combustion layer is specifically anhydrous. a mixed layer of ethanol and a solute mass fraction of 60% hydrogen peroxide in a volume ratio of 1:10 to form a mixed liquid and mixed with a solid organic salt; the sealing layer is specifically divided into three parts, and the three parts are physically combined with each other. The three parts are specifically reinforcements, stabilizers and degradation promoters, which are mixed at a mass ratio of 6:2:2, and the reinforcement is an EAA copolymerized with ethylene and acrylic acid in a mass ratio of 7:3. Specifically 5-ethylidene-2-norbornene, ethylene, propylene The non-sulfide EPDM rubber copolymerized by mass ratio 1:10:9, the degradation promoter is biodegradable starch resin bsr; the secondary blast layer is specifically anhydrous ethanol and the solute mass fraction 60% hydrogen peroxide is 1 A volume ratio of 10 is mixed to form a mixed gas layer mixed with a solid organic salt after 7 to 8 times atmospheric pressure.
The environmentally-friendly firecracker capable of degrading the pollution-free residue according to claim 3, wherein the solid organic salt is specifically an organic substance containing potassium, sodium, copper and calcium, and the corresponding content is selected according to the required flame color. A solid organic salt of a metal element. .
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