Composition for detonation sound agent, detonation sound agent as well as preparation method and application of detonation sound agent

Abstract

The invention belongs to the technical field of chemical engineering, and relates to a composition for a detonation sound agent, the detonation sound agent and a preparation method and application of the detonation sound agent. The technical problems that in the prior art, pyrotechnic composition and aluminum magnesium alloy powder serve as raw materials, potential safety hazards exist in the preparation and storage process, sulfur dioxide generated after combustion easily forms acid rain, and the detonation sound value does not reach the standard are solved. The invention provides a composition for a detonation sound agent, which comprises the following raw materials: 75-85 wt% of lead tetraoxide, 10-15 wt% of aluminum-silicon alloy powder and 5-10 wt% of nitrocellulose gum solution, and has the effects of high detonation sound value, high stability and safety, and suitability for large-scale industrial production and use. The invention further provides a detonation sound agent and a preparation method of the detonation sound agent. Meanwhile, the invention further provides application of the detonation sound agent in preparation of the bird repelling bomb, when the explosive quantity is 300 mg, the set-off sound level value at the position 2 m away from the acting position can reach 120 dB or above, and the good high-altitude bird repelling effect is achieved.

Description

Technical Field

[0001] The present invention belongs to the field of chemical engineering technology, and in particular relates to a composition for a sonic explosion agent, a sonic explosion agent, and a preparation method and application thereof. Background Art

[0002] With the rapid development of the aviation industry, the frequency of aircraft takeoffs and landings at airports is increasing, and bird-aircraft collisions are becoming increasingly frequent. Although birds are small and slow, when they collide with high-speed aircraft, their relative speed is extremely high. This high-speed collision can easily cause serious damage to the aircraft's mechanical structure or engine. Bird strikes have caused numerous major air disasters, resulting in significant human and economic losses. Therefore, ensuring the safe takeoff and landing of aircraft at airports and eliminating potential risks such as bird impacts and ingestion are crucial tasks in airport safety management.

[0003] To address this issue, airports often employ auditory deterrents to deter bird intrusion. High-altitude bird-repellent munitions, which produce a loud bang and bright light after ignition and reaching a certain altitude, can effectively compensate for the limited height and radius of low-altitude bird-repellent munitions. The blasting agent is the primary source of the audible effect of bird-repellent munitions, and its performance directly impacts their effectiveness.

[0004] However, the explosive agents used in existing high-altitude bird-repellent bombs for airports are mostly made from pyrotechnics. Traditional black powder contains sulfur, and the sulfur dioxide produced upon combustion easily forms acid rain, which is highly harmful to both humans and the environment. Furthermore, the aluminum-magnesium alloy powder commonly used in explosive agents reacts readily with water and acid, releasing significant heat, posing a safety hazard during the large-scale production and storage of bird-repellent bombs. Furthermore, the sound intensity of the explosive agent is significantly limited by its formulation and preparation method; even slight modifications can easily reduce its effective sound intensity, hindering the large-scale industrial production of bird-repellent bombs.

[0005] Therefore, developing an explosive agent for high-altitude bird-repellent bombs at airports that is suitable for large-scale production and has both high safety and high explosive sound value is of great significance for ensuring the safety of aircraft takeoff and landing at airports. Summary of the Invention

[0006] 1. Problems to be solved

[0007] This application addresses the technical issues that prior art sonic boom agents, which use pyrotechnic powder and aluminum-magnesium alloy powder as raw materials, present safety hazards during preparation and storage, produce sulfur dioxide that easily forms acid rain, and have substandard sonic boom values. This application provides a composition for sonic boom agents. Furthermore, this application provides a sonic boom agent and a method for preparing the same. Furthermore, this application provides the use of the sonic boom agent in the preparation of bird repellent projectiles.

[0008] 2. Technical solution

[0009] In order to achieve the above objectives, the technical solutions provided are:

[0010] The composition for explosive sound agent comprises the following raw materials: 75-85 wt% of lead tetroxide, 10-15 wt% of aluminum silicon alloy powder and 5-10 wt% of nitrocellulose glue solution.

[0011] Furthermore, the proportion of silicon in the aluminum-silicon alloy powder is 20 wt%.

[0012] Furthermore, the particle size of the aluminum-silicon alloy powder is 1 to 3 μm; and the particle size of the lead tetroxide is 3 to 10 μm.

[0013] The reducing agent reaction activity of aluminum silicon alloy powder at this particle size is relatively high, which can better meet the energy release requirements of the explosive agent.

[0014] The oxidant reaction activity of lead tetroxide is relatively high at this particle size, which can better meet the energy release requirements of the explosive agent.

[0015] Furthermore, the nitrocellulose in the nitrocellulose glue solution accounts for 5-7 wt %, and the solvent is one of acetone / ethanol mixed solvent, ethyl acetate or dimethyl sulfoxide.

[0016] The preferred volume ratio of acetone to ethanol is 3:1.

[0017] A sonic boom agent, comprising the sonic boom agent composition.

[0018] The preparation method of the explosive sound agent comprises the following steps:

[0019] Mixing lead tetroxide and aluminum silicon alloy powder, adding the mixture into nitrocellulose glue solution and mixing evenly to obtain a suspension;

[0020] The suspension is subjected to solvent evaporation, sieved, and dried to obtain a sonic boom agent;

[0021] The blasting agent contains 75-85 wt% of lead tetroxide, 10-15 wt% of aluminum silicon alloy powder, and 5-10 wt% of nitrocellulose glue solution.

[0022] Furthermore, the nitrocellulose glue solution is prepared by mixing nitrocellulose with a solvent, wherein the solvent is one of an acetone / ethanol mixed solvent, ethyl acetate or dimethyl sulfoxide, and the nitrocellulose in the nitrocellulose glue solution accounts for 5 to 7 wt%.

[0023] Furthermore, the silicon content in the aluminum-silicon alloy powder is 20 wt %; the particle size of the aluminum-silicon alloy powder is 1 μm to 3 μm; and the particle size of the lead tetroxide is 3 μm to 10 μm.

[0024] Furthermore, the solvent volatilization temperature is 40°C to 45°C, the sieve mesh size is 30 mesh to 50 mesh, and the drying temperature is 40°C to 50°C.

[0025] Preferably, the solvent volatilization time does not exceed 5 minutes, and the drying time is 2 hours to 2.5 hours.

[0026] The application of the composition for explosive sound agent, the explosive sound agent, or the explosive sound agent prepared by the method in the preparation of bird repellent bombs.

[0027] 3. Beneficial effects

[0028] Compared with the existing known technologies, the technical solution provided by the present invention has the following beneficial effects:

[0029] (1) The composition for explosive sound agent of the present invention comprises the following raw materials: 75-85 wt% of lead tetroxide, 10-15 wt% of aluminum silicon alloy powder and 5-10 wt% of nitrocellulose glue solution.

[0030] a. High explosion sound value. The aluminum powder used in the traditional explosion sound agent formula has incomplete energy release during the combustion process due to the obstruction of the oxide layer. At the same time, the reactivity of micron aluminum is poor, which reduces the energy release rate, thereby adversely affecting the improvement of the explosion sound value. The aluminum-silicon alloy powder with the same particle size used in the present invention destroys the density of the aluminum oxide shell due to the structural characteristics of the hypereutectic shell doping, so that the explosion sound agent formula has stronger mass transfer and diffusion capabilities between components while maintaining high energy density, significantly improves the reaction rate, and helps to show a higher explosion sound value at the same dosage.

[0031] b. It has good combustion performance. Lead tetroxide has a high oxidizing ability and can effectively oxidize aluminum silicon alloy powder to promote the combustion reaction. This allows the explosive agent to burn quickly and release a large amount of energy, producing a strong sound. The nitrocellulose glue solution can provide a stable combustion environment during the combustion process, which is conducive to the uniform combustion of the explosive agent. The three produce a coordinated effect, further improving the combustion performance and ensuring the stability and consistency of the sound effect.

[0032] c. It has high stability and safety. Lead tetroxide is an oxidant with relatively stable chemical properties at room temperature and is not easy to decompose or react with other substances. The aluminum-magnesium alloy powder commonly used as modified blasting agent in the prior art easily reacts and releases a large amount of heat when exposed to water and acid, which poses a safety hazard in the large-scale preparation and storage of bird repellent bullets. The aluminum-silicon alloy powder used in the present invention does not migrate to the surface of the alloy during long-term storage due to the lower reactivity of the silicon component than magnesium. It is not easy to react when exposed to water and other conditions, which can ensure the stability of the blasting agent formula. This stability makes the blasting agent safer during storage and transportation. The nitrocellulose glue solution is a binder with high bonding strength. It can firmly bond various granular oxidants and reducing agents together to form a uniform mixture, and can form a tough film after drying. This film can effectively prevent separation and shedding between particles, further improving the safety of the blasting agent.

[0033] d. Little pollution to the environment. The explosive agent composition of the present application does not contain any sulfur-containing fuel and will not produce sulfur dioxide to form acid rain.

[0034] e. The raw materials used are low in cost and easy to purchase, making them suitable for process amplification and large-scale production.

[0035] (2) The explosive sound agent of the present invention, including the explosive sound agent composition, has high explosive sound value, good combustion performance, high stability and safety, little pollution to the environment and low raw material cost, and is suitable for large-scale industrial production and use.

[0036] (3) The preparation method of the explosive sound agent of the present invention adopts a wet mixing and sieving granulation method, which is simple to operate and has a simple process, and can be produced and applied in large quantities.

[0037] (4) The composition for a blasting agent and the application of the blasting agent of the present invention are used to prepare bird repellent bombs to repel birds from specific areas such as airports, thereby preventing collisions between birds and aircraft such as airplanes and ensuring flight safety. At a dosage of 300 mg, the sound level of the blasting agent at a distance of 2 meters from the action position can reach over 120 dB, which is higher than the sound intensity of a blasting agent with a conventional aluminum-lead tetroxide formula, and has a good high-altitude bird repellent effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 SEM images of aluminum-silicon alloy powder (Al-20Si) and lead tetroxide, wherein (a) is the SEM image of aluminum-silicon alloy powder, and (b) is the SEM image of lead tetroxide;

[0039] Figure 2 This is a SEM image of the explosive sound agent prepared in Example 1;

[0040] Figure 31 and 2 are DTA curves of Comparative Example 1 and Example 1, wherein (a) is the DTA curve of Comparative Example 1, and (b) is the DTA curve of Example 1. DETAILED DESCRIPTION

[0041] In order to further understand the content of the present invention, the present invention is described in detail with reference to the embodiments.

[0042] The present application is further described below with reference to specific embodiments.

[0043] It should be noted that the terms such as "upper", "lower", "left", "right", and "middle" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of this application without substantially changing the technical content.

[0044] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0045] If the specific conditions are not specified in the examples, the experiments were carried out under conventional conditions or those recommended by the manufacturer. All reagents or instruments used, if the manufacturer is not specified, are commercially available conventional products.

[0046] As used herein, the term "about" is used to provide flexibility and imprecision associated with a given term, measurement, or value. One skilled in the art can readily determine the degree of flexibility for a particular variable.

[0047] As used herein, the term "at least one of" is intended to be synonymous with "one or more of." For example, "at least one of A, B, and C" explicitly includes only A, only B, only C, and combinations of each thereof.

[0048] Concentration, amount and other numerical data can be presented in range format in this article.Should be understood that such range format is only used for convenience and brevity, and should be flexibly interpreted as not only including the numerical value clearly described as range limit, but also including all independent numerical values ​​or subranges encompassed within the scope, just as each numerical value and subrange are clearly described.For example, the numerical range of about 1 to about 4.5 should be interpreted as not only including the limit value of 1 to about 4.5 clearly described, but also including independent numerals (such as 2,3,4) and subranges (such as 1 to 3,2 to 4 etc.).The same principle is applicable to the scope of only narrating a numerical value, such as "less than about 4.5", which should be interpreted as including all above-mentioned values ​​and scopes.In addition, no matter how the breadth of described scope or feature is, this explanation should be applicable.

[0049] The sources of the raw materials for this application are as follows:

[0050] Aluminum-silicon alloy powder and aluminum powder were purchased from Tangshan Weihao Magnesium Powder Co., Ltd.; red lead tetroxide was purchased from Sinopharm Group Co., Ltd.

[0051] Example 1

[0052] The preparation method of the explosive agent of this embodiment adopts the wet mixing and screening granulation method, which includes the following steps:

[0053] Weigh 25 mg of nitrocellulose and 475 mg of ethyl acetate, dissolve the nitrocellulose in the ethyl acetate solution, and stir thoroughly to dissolve evenly to obtain a 5 wt% nitrocellulose gum solution;

[0054] Weigh 1.5 g of aluminum-silicon alloy powder (average particle size of 2 μm, silicon content of 20 wt%), 8 g of red lead tetroxide (average particle size of 5 μm), and 0.5 g of nitrocellulose gel solution. Mix the lead tetroxide and aluminum-silicon alloy powder and add them to the nitrocellulose gel solution. Mix thoroughly in an ultrasonic device at 45°C for 2 h to obtain a suspension.

[0055] The suspension was placed in an oven at 45°C to evaporate the solvent, and then passed through a 30-mesh sieve for more than three times to obtain a granulated sample;

[0056] The granulated sample was dried at 45° C. for 2 hours, taken out and placed in an antistatic bag for standby use to obtain the explosive agent.

[0057] The SEM images of the raw materials aluminum silicon alloy powder and lead tetroxide in this embodiment are shown in Figure 1, and the SEM images of the explosive agent are shown in Figure 2. Figure 2 shown.

[0058] Comparative Example 1

[0059] The preparation method of the explosive sound agent of this comparative example comprises the following steps:

[0060] Weigh 25 mg of nitrocellulose and 475 mg of ethyl acetate, dissolve the nitrocellulose in the ethyl acetate solution, and stir thoroughly to dissolve evenly to obtain a 5 wt% nitrocellulose gum solution;

[0061] Weigh 1.5 g of aluminum powder (average particle size of 2 μm), 8 g of red lead tetroxide, and 0.5 g of nitrocellulose glue solution. Mix the lead tetroxide and aluminum silicon alloy powder, add them to the nitrocellulose glue solution, and thoroughly mix them in an ultrasonic device at a water temperature of 45°C for 2 h to obtain a suspension.

[0062] The suspension was placed in an oven at 45°C to evaporate the solvent, and then passed through a 30-mesh sieve for more than three times to obtain a granulated sample;

[0063] The granulated sample was dried at 45° C. for 2 hours, taken out and placed in an antistatic bag for standby use to obtain the explosive agent.

[0064] Comparative Example 2

[0065] The preparation method of the explosive sound agent of this comparative example comprises the following steps:

[0066] Weigh 25 mg of nitrocellulose and 475 mg of ethyl acetate, dissolve the nitrocellulose in the ethyl acetate solution, and stir thoroughly to dissolve evenly to obtain a 5 wt% nitrocellulose gum solution;

[0067] Weigh 2.0 g of aluminum-silicon alloy powder (average particle size of 2 μm, silicon content of 20 wt%), 7.5 g of red lead tetroxide (average particle size of 5 μm), and 0.5 g of nitrocellulose gel solution. Mix the lead tetroxide and aluminum-silicon alloy powder and add them to the nitrocellulose gel solution. Mix thoroughly in an ultrasonic device at 45°C for 2 h to obtain a suspension.

[0068] The suspension was placed in an oven at 45°C to evaporate the solvent, and then passed through a 30-mesh sieve for more than three times to obtain a granulated sample;

[0069] The granulated sample was dried at 45° C. for 2 hours, taken out and placed in an antistatic bag for standby use to obtain the explosive agent.

[0070] Comparative Example 3

[0071] The preparation method of the explosive sound agent of this comparative example comprises the following steps:

[0072] Weigh 50 mg of nitrocellulose and 450 mg of ethyl acetate, dissolve the nitrocellulose in the ethyl acetate solution, and stir thoroughly to dissolve evenly to obtain a 10 wt% nitrocellulose glue solution;

[0073] Weigh 1.5 g of aluminum-silicon alloy powder (average particle size of 2 μm, silicon content of 20 wt%), 8 g of red lead tetroxide (average particle size of 5 μm), and 0.5 g of nitrocellulose gel solution. Mix the lead tetroxide and aluminum-silicon alloy powder and add them to the nitrocellulose gel solution. Mix thoroughly in an ultrasonic device at 45°C for 2 h to obtain a suspension.

[0074] The suspension was placed in an oven at 45°C to evaporate the solvent, and then passed through a 30-mesh sieve for more than three times to obtain a granulated sample;

[0075] The granulated sample was dried at 45° C. for 2 hours, taken out and placed in an antistatic bag for standby use to obtain the explosive agent.

[0076] Comparative Example 4

[0077] The preparation method of the explosive sound agent of this comparative example comprises the following steps:

[0078] Weigh 25 mg of nitrocellulose and 475 mg of ethyl acetate, dissolve the nitrocellulose in the ethyl acetate solution, and stir thoroughly to dissolve evenly to obtain a 5 wt% nitrocellulose gum solution;

[0079] Weigh 1.5 g of aluminum-silicon alloy powder (average particle size of 2 μm, silicon content of 30 wt%), 8 g of red lead tetroxide (average particle size of 5 μm), and 0.5 g of nitrocellulose gel solution. Mix the lead tetroxide and aluminum-silicon alloy powder, add them to the nitrocellulose gel solution, and thoroughly mix them in an ultrasonic device at 45°C for 2 h to obtain a suspension.

[0080] The suspension was placed in an oven at 45°C to evaporate the solvent, and then passed through a 30-mesh sieve for more than three times to obtain a granulated sample;

[0081] The granulated sample was dried at 45° C. for 2 hours, taken out and placed in an antistatic bag for standby use to obtain the explosive agent.

[0082] Comparative Example 5

[0083] The preparation method of the explosive sound agent of this comparative example comprises the following steps:

[0084] Weigh 25 mg of nitrocellulose and 475 mg of ethyl acetate, dissolve the nitrocellulose in the ethyl acetate solution, and stir thoroughly to dissolve evenly to obtain a 5 wt% nitrocellulose gum solution;

[0085] Weigh 1.5 g of aluminum-silicon alloy powder (particle size of 6 μm to 8 μm, silicon content of 20 wt%), 8 g of red lead tetroxide (average particle size of 5 μm), and 0.5 g of nitrocellulose gel solution. Mix the lead tetroxide and aluminum-silicon alloy powder and add them to the nitrocellulose gel solution. Mix thoroughly in an ultrasonic device at 45°C for 2 h to obtain a suspension.

[0086] The suspension was placed in an oven at 45°C to evaporate the solvent, and then passed through a 30-mesh sieve for more than three times to obtain a granulated sample;

[0087] The granulated sample was dried at 45° C. for 2 hours, taken out and placed in an antistatic bag for standby use to obtain the explosive agent.

[0088] The combustion performance test of the explosive sound agent prepared in Example 1 and Comparative Example 1 was carried out:

[0089] like Figure 3 The differential thermal analysis curve (DTA curve) shown in the figure is (a) the blasting agent (Al / Pb3O4) prepared in Comparative Example 1, and (b) the blasting agent (Al-20Si / Pb3O4) prepared in Example 1. It can be seen that when aluminum silicon alloy is used instead of aluminum powder in the blasting agent formula, the endothermic peak in the DTA curve is masked by the exothermic peak, and the position of the second exothermic peak is advanced to a certain extent; this shows that the blasting agent of the present application has stronger reactivity and faster energy release rate.

[0090] The sound intensity test was performed on the explosive sound agents prepared in Example 1 and Comparative Examples 1 to 5: the sound intensity values ​​of the explosive sound agents obtained at a vertical distance of 2 m from the test sample are detailed in Table 1.

[0091] Table 1 Sound intensity test of explosive sound agent

[0092]

[0093] From Table 1 we can see that:

[0094] (1) By comparing the sound intensity values ​​of Example 1 and Comparative Example 1 at different drug dosages, compared with the ordinary aluminum-lead tetroxide (Al / Pb3O4) explosive agent formula in Comparative Example 1, the aluminum-silicon alloy-lead tetroxide (Al-20Si / Pb3O4) used in the present invention can effectively enhance the sound intensity value of the explosive agent. At a drug dosage of 300 mg, the sound intensity reaches 123.2 dB, which is higher than 121.9 dB in Comparative Example 1.

[0095] Can also be combined Figure 2It can be seen that the reactivity of the explosive agent using aluminum-silicon alloy is enhanced, and the faster energy release rate increases the sound intensity value exhibited by the explosive agent, which is conducive to achieving a better high-altitude bird-repelling effect.

[0096] (2) By comparing the sound intensity values ​​of Example 1 and Comparative Example 2, it can be seen that at a dosage of 300 mg, the sound intensity of Example 1 reaches 123.2 dB, and the sound intensity of Comparative Example 2 is 121.0 dB; in the explosive sound agent of Comparative Example 2, the proportion of aluminum-silicon alloy powder is increased to 20 wt%, and the proportion of lead tetroxide is reduced to 75 wt%. Lead tetroxide acts as an oxidant in the reaction. When its proportion is reduced, it cannot provide sufficient oxygen to support the full combustion of the aluminum-silicon alloy powder, thereby resulting in a decrease in the explosive sound value.

[0097] (3) By comparing the sound intensity values ​​of Example 1 and Comparative Example 3, it can be seen that at a dose of 300 mg, the sound intensity of Comparative Example 3 is 119.0 dB, which is lower than that of Example 1. Excessive nitrocellulose content (10 wt %) in the nitrocellulose glue solution will increase the viscosity of the glue solution, and excessive binder content will reduce the energy release rate of the explosive agent, which is not conducive to improving the explosive value of the explosive agent.

[0098] (4) By comparing the sound intensity values ​​of Example 1 and Comparative Example 4, it can be seen that at a dosage of 300 mg, the sound intensity of Comparative Example 4 is 119.5 dB, which is lower than that of Example 1. The proportion of silicon in the aluminum-silicon alloy powder is 30 wt%, which is higher than that of Example 1 (the proportion of silicon in the aluminum-silicon alloy powder is 20 wt%). The excessively high silicon content in the aluminum-silicon alloy powder is not conducive to improving the explosive sound value of the explosive agent.

[0099] (5) By comparing the sound intensity values ​​of Example 1 and Comparative Example 5, it can be seen that at a dosage of 300 mg, the sound intensity of Comparative Example 5 is 118.6 dB, which is lower than that of Example 1. The particle size of the aluminum silicon alloy powder used in Comparative Example 5 is 6 μm to 8 μm. The use of aluminum silicon alloy powder with a larger particle size is not conducive to improving the explosive sound value of the explosive agent. The average particle size of the aluminum silicon alloy powder used in Example 1 is 2 μm. The smaller particle size has a larger specific surface area, can contact and react with oxygen more quickly, and has a faster combustion rate, thereby releasing more energy in a short time and producing a higher explosive sound value.

[0100] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A composition for a blasting agent, characterized in that: The invention comprises the following raw materials: 75-85 wt% of lead tetroxide, 10-15 wt% of aluminum silicon alloy powder and 5-10 wt% of nitrocellulose glue solution.

2. The composition for explosive agent according to claim 1, characterized in that: The proportion of silicon in the aluminum-silicon alloy powder is 20 wt %.

3. The composition for explosive agent according to claim 2, characterized in that: The particle size of the aluminum-silicon alloy powder is 1 to 3 μm; the particle size of the lead tetroxide is 3 to 10 μm.

4. The composition for explosive agent according to claim 3, characterized in that: The nitrocellulose glue solution contains 5-7 wt % of nitrocellulose, and the solvent is one of an acetone / ethanol mixed solvent, ethyl acetate or dimethyl sulfoxide.

5. A sonic explosion agent, characterized in that: A composition for a sonic boom agent comprising the composition according to any one of claims 1 to 4.

6. A method for preparing a sonic boom agent, characterized in that: The following steps are involved: Mixing lead tetroxide and aluminum silicon alloy powder, adding the mixture into nitrocellulose glue solution and mixing evenly to obtain a suspension; The suspension is subjected to solvent evaporation, sieved, and dried to obtain a sonic boom agent; The blasting agent contains 75-85 wt% of lead tetroxide, 10-15 wt% of aluminum silicon alloy powder, and 5-10 wt% of nitrocellulose glue solution.

7. The method for preparing the explosive agent according to claim 6, characterized in that: The nitrocellulose glue solution is prepared by mixing nitrocellulose with a solvent, wherein the solvent is one of an acetone / ethanol mixed solvent, ethyl acetate or dimethyl sulfoxide, and the nitrocellulose in the nitrocellulose glue solution accounts for 5 to 7 wt%.

8. The method for preparing the explosive agent according to claim 6, characterized in that: The silicon content in the aluminum-silicon alloy powder is 20 wt %; the particle size of the aluminum-silicon alloy powder is 1 μm to 3 μm; and the particle size of the lead tetroxide is 3 μm to 10 μm.

9. The method for preparing the explosive sound agent according to any one of claims 6 to 8, characterized in that: The solvent volatilization temperature is 40° C. to 45° C., the sieve mesh size is 30 mesh to 50 mesh, and the drying temperature is 40° C. to 50° C.

10. Use of the composition for an explosive sound agent according to any one of claims 1 to 4, or the explosive sound agent according to claim 5, or the explosive sound agent prepared by the method according to any one of claims 6 to 9 in the preparation of bird repellent bombs.

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