Photosensitive high-energy composite material and preparation method thereof

Abstract

The preparation method comprises the following steps: adding silver acetylene-silver nitrate (SASN) into a 4, 4 ', 6, 6'-tetraazido hydrazine-1, 3, 5-triazine (THT) solution, uniformly stirring to obtain an SASN / THT suspension, removing a solvent, and drying to obtain the photosensitive high-energy composite material. The synthesis method is safe, simple, efficient and easy for industrial production. The addition of THT improves the photosensitivity of the composite material in the ultraviolet band, and improves the energy release at the same time. The photosensitive high-energy composite material not only solves the problem of insufficient light response performance of the traditional SASN, but also enhances the energy release effect through the high nitrogen characteristic of THT, and provides a better technical scheme for the application of the photosensitive high-energy composite material.

Description

Technical Field

[0001] The invention belongs to the technical field of energetic materials, and particularly relates to a photosensitive high-energy composite material and a preparation method thereof. Background Art

[0002] The energy of a high-altitude (80km) nuclear explosion is released in the form of X-rays. This high-power density X-ray radiation will interact with the material shell, causing the photon energy to be converted into the internal energy of the material and produce instantaneous energy deposition. This process forms high temperature and high pressure locally, and forms a thermal shock wave in the shell material, destroying the material.

[0003] At present, chemical explosion simulation technology has been used at home and abroad to simulate the structural response of nuclear explosion X-rays to materials. Among the existing chemical explosion simulation technologies, photosensitive explosive loading technology has the advantages of short pulse loading time and good synchronization, and has been widely studied abroad. Some researchers believe that photosensitive explosive loading technology is the only technology that can simultaneously simulate the material and structural responses caused by X-rays. Among them, acetylene silver-silver nitrate (SASN) is an excellent photosensitive explosive. Its advantages such as simple synthesis method, low cost, and safe solvent storage are conducive to large-scale production and application. Relevant researchers have simulated the X-ray thermo-mechanical effect acting on the structure by spraying SASN on the target plate or structure surface and using a large-area array strong flash detonation. However, there are still some problems that need to be solved in the practical application of SASN: its low photosensitivity in the ultraviolet band leads to insufficient light response performance and poor synchronization during the flash detonation process; in addition, the low energy release leads to a narrow specific impulse loading range. Summary of the invention

[0004] In order to overcome the problems of poor photosensitivity and low energy release of SASN in the ultraviolet band in the prior art, the purpose of the present invention is to provide a photosensitive high-energy composite material and a preparation method. The high-nitrogen compound 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine (THT) used in the method not only has high energy but also has good photosensitivity. Introducing it into SASN can make up for its shortcomings and improve the performance of photosensitive explosives.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A method for preparing a photosensitive high-energy composite material comprises the following steps: adding silver acetylene-silver nitrate to a 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine solution, stirring evenly to obtain a suspension, removing the solvent, and drying to obtain the photosensitive high-energy composite material.

[0007] Furthermore, the amount of the high nitrogen compound 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine is 1%-5% of the mass of the photosensitive high-energy composite material.

[0008] Furthermore, the amount of silver acetylene-silver nitrate is 95%-99% of the mass of the photosensitive high-energy composite material.

[0009] Furthermore, the particle size of silver acetylene-silver nitrate is 150nm-450nm.

[0010] Furthermore, the solvent used for the 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine solution is acetone.

[0011] Furthermore, the solvent is removed by rotary evaporation.

[0012] Furthermore, the ratio of 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine to acetone is 5-15 mg:10-30 mL.

[0013] Furthermore, the amount of silver acetylene-silver nitrate is 10-40 g per milliliter of solvent.

[0014] Furthermore, the stirring is carried out at room temperature and in the dark; and the drying is carried out in the dark.

[0015] A photosensitive high-energy composite material, wherein the particle size of the photosensitive high-energy composite material is 250nm-500nm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention successfully prepares a photosensitive explosive material with excellent performance by compounding a high-nitrogen compound THT with SASN and adopting a solvent evaporation induction method. Compared with a single SASN, the composite material has the following advantages in performance: (1) the photosensitivity in the ultraviolet band is improved, which is mainly attributed to the high light absorption of THT in the ultraviolet band, which can absorb more photons per unit thickness, thereby enhancing the light response characteristics of the composite material; (2) the energy release is improved, which is because the high nitrogen content of THT can produce a large amount of green and clean N2 during the explosion process. The synthesis method of the present invention is simple, safe, effective, and easy to industrialize.

[0018] Furthermore, the THT content has an impact on the performance of the composite material: with the increase of THT content, the photosensitivity of the photosensitive explosive tends to gradually increase, while the energy release shows a nonlinear change law of first increasing and then decreasing. This characteristic provides an important basis for the precise regulation of material properties.

[0019] Furthermore, SASN can be stably stored for a long time in acetone solution, so acetone is selected as the solvent; and SASN is sensitive to light, so stirring and operation are all carried out at room temperature in the dark. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The pictures are of the photosensitive high-energy composite materials of SASN / THT (1%) of Example 1 and Example 5; wherein (a) is a picture of the composite of SASN / THT (1%) volatilized at 50°C, and (b) is a picture of the composite of SASN / THT (1%) obtained under the condition of 30 mL of solvent;

[0021] Figure 2 The SEM images of the original SASN and the photosensitive high-energy composite materials of Example 3, Example 4, Example 6 and Example 7, (a) is the SEM image of the original SASN; (b) is the SEM image of SASN / THT (1%) when the solvent is 10 mL, (c) is the SEM image of SASN / THT (1%) when the solvent is 20 mL, (d) is the SEM image of SASN / THT (3%) when the solvent is 20 mL, (e) is the SEM image of SASN / THT (5%) when the solvent is 20 mL;

[0022] Figure 3 FT-IR spectra of photosensitive high-energy composite materials with different THT contents in Example 4, Example 6 and Example 7;

[0023] Figure 4 The UV-visible spectrophotometer test spectra of the photosensitive high-energy composite materials with different THT contents in Example 4, Example 6 and Example 7;

[0024] Figure 5 The closed detonator pt curves of the photosensitive high-energy composite materials with different THT contents in Example 4, Example 6 and Example 7 are shown; wherein (a) is a closed detonator pt curve of SASN, (b) is a closed detonator pt curve of SASN / THT (1%), (c) is a closed detonator pt curve of SASN / THT (3%), and (d) is a closed detonator pt curve of SASN / THT (5%);

[0025] Figure 6 The UV-visible spectrophotometer test spectra prepared by using different photosensitizers (3%) and SASN in comparative examples 1-3; Figure (a) is the UV-visible spectrophotometer test spectrum of SASN / benzene azide (3%), (b) is the UV-visible spectrophotometer test spectrum of SASN / TIN (5%), and (c) is the UV-visible spectrophotometer test spectrum of SASN / zinc phthalocyanine (3%);

[0026] Figure 7 1 and 2 are the particle size distribution diagrams of the original SASN and the photosensitive high-energy energetic material of Example 6, wherein (a) is the particle size distribution diagram of the original SASN, and (b) is the particle size distribution diagram of the SASN / THT (3%) photosensitive high-energy composite material. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0028] The present invention is described in detail below with reference to the accompanying drawings.

[0029] The following are specific embodiments to further illustrate the technical solutions of the present invention.

[0030] A method for preparing a photosensitive high-energy composite material of the present invention is as follows:

[0031] A high nitrogen compound 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine (THT) was added to the acetone solution, and stirred at 1000 rpm on a magnetic stirrer for 30 min until THT was fully dissolved in the acetone solution to form solution A;

[0032] Add acetylene silver-silver nitrate (SASN) to solution A to form a mixed suspension B, and continue stirring for 30 minutes at room temperature and in the dark to obtain a suspension in which SASN is fully and evenly dispersed;

[0033] The suspension was evaporated by a rotary evaporator to evaporate the solvent. Then, the composite was collected and dried at room temperature in the dark for 6 hours to obtain a novel photosensitive high-energy composite material.

[0034] The synthesis method of the invention is safe, simple, efficient and easy to industrialize.

[0035] The present invention improves the performance of photosensitive explosives by compounding THT and SASN. Experimental results show that the photosensitivity of the composite photosensitive explosive in the ultraviolet band is improved compared with that of single SASN. At the same time, the composite material is also improved in terms of energy release characteristics, which is specifically manifested in the following aspects: the improvement of photosensitivity enables the material to respond to light stimulation more efficiently and achieve precise energy release and control; the improvement of energy release efficiency effectively expands the specific impulse loading range, which can meet the simulation technology requirements of higher energy demand.

[0036] Example 1

[0037] Preparation of solution A: Add 5 mg of THT into 10 mL of acetone solution and stir on a magnetic stirrer at 1000 rpm for 30 min until THT is fully dissolved;

[0038] Preparation of suspension B: SASN with a particle size of 150nm-450nm was added to solution A to form suspension B, wherein the concentration of SASN was 0.0495g / mL, and stirring was continued for 30min at room temperature and in the dark to obtain a suspension in which SASN was fully and evenly dispersed;

[0039] Solvent evaporation and drying: The suspension was evaporated by a rotary evaporator. The rotary evaporation temperature was 50°C. Finally, the composite was collected and dried at room temperature in the dark for 6 hours to obtain a photosensitive high-energy composite material.

[0040] Figure 1 (a) is a picture of the photosensitive high-energy composite material obtained in Example 1. It can be seen from the picture that the color turns gray after compounding (normally white). This is because the temperature is too high, causing the SASN to deteriorate in the acetone solution.

[0041] Example 2

[0042] Preparation of solution A: Add 5 mg of THT into 10 mL of acetone solution and stir on a magnetic stirrer at 1000 rpm for 30 min until THT is fully dissolved in acetone;

[0043] Preparation of suspension B: SASN with a particle size of 150 nm-450 nm was added to solution A to form a mixed suspension B, wherein the concentration of SASN was 0.0495 g / mL, and stirring was continued for 30 min at room temperature and in the dark to obtain a suspension in which SASN was fully and evenly dispersed;

[0044] Solvent evaporation and drying: The suspension was evaporated by a rotary evaporator. The rotary evaporation temperature was 40° C. Finally, the composite was collected and dried at room temperature in the dark for 6 h to obtain a photosensitive high-energy composite material.

[0045] During the experiment, it was found that the evaporation temperature of the rotary evaporator was set too low, resulting in reduced solvent volatilization efficiency and longer time.

[0046] Example 3

[0047] Preparation of solution A: Add 5 mg of THT into 10 mL of acetone solution and stir on a magnetic stirrer at 1000 rpm for 30 min until THT is fully dissolved in acetone;

[0048] Preparation of suspension B: SASN with a particle size of 150 nm-450 nm was added to solution A to form a mixed suspension B, wherein the concentration of SASN was 0.0495 g / mL, and stirring was continued for 30 min at room temperature and in the dark to obtain a suspension in which SASN was fully and evenly dispersed;

[0049] Solvent evaporation and drying: The suspension was evaporated by a rotary evaporator. The rotary evaporation temperature was 45°C. Finally, the composite was collected and dried at room temperature for 6 hours to obtain a photosensitive high-energy composite material with a particle size of 250nm-500nm.

[0050] Figure 2 Figure (a) is a SEM image of the original SASN, where it can be seen that the SASN presents a spherical morphology, and Figure (b) is a SEM image of the photosensitive high-energy composite material prepared in Example 3. Figure 2 It can be observed from the comparison between (a) and (b) that the composite structure of SASN and THT is unevenly distributed. This unevenness is mainly attributed to the small amount of solvent, which accelerates the evaporation rate of the solvent, making it impossible for SASN and THT to be fully mixed and evenly dispersed during the crystallization process, and finally forming a locally aggregated or discontinuous composite structure.

[0051] Figure 7 (a) is the particle size distribution diagram of the original SASN, which shows that the SASN particle size is in the range of 150nm-450nm.

[0052] Example 4

[0053] Preparation of solution A: Add 5 mg of THT into 20 mL of acetone solution and stir on a magnetic stirrer at 1000 rpm for 30 min until THT is fully dissolved in acetone;

[0054] Preparation of suspension B: SASN with a particle size of 150 nm-450 nm was added to solution A to form a mixed suspension B, wherein the concentration of SASN was 0.02475 g / mL, and stirring was continued for 30 min at room temperature and in the dark to obtain a suspension in which SASN was fully and evenly dispersed;

[0055] Solvent evaporation and drying: The suspension was evaporated by a rotary evaporator at a rotary evaporation temperature of 45°C, and then the composite was collected and dried at room temperature in the dark for 6 hours to obtain a photosensitive high-energy composite material with a particle size of 250nm-500nm.

[0056] Figure 2 (c) is a SEM image of the photosensitive high-energy composite material obtained in Example 4. It can be seen that the composite THT presents small particles uniformly adsorbed on the SASN, proving that the photosensitive high-energy composite material is successfully composited.

[0057] Figure 3 The antisymmetric stretching vibration peak of the azide group (-N3) in THT appeared in the Fourier transform infrared spectroscopy (FT-IR) spectrum of SASN / THT (1%) photosensitive high-energy composite material, indicating that THT and SASN were successfully composited.

[0058] Figure 4 This is the absorption spectrum of the SASN / THT (1%) photosensitive high-energy composite material in the ultraviolet region (200-300nm). It can be seen that the ultraviolet absorption of the SASN / THT (1%) photosensitive high-energy composite material is higher than that of SASN alone, indicating that the photosensitivity of the photosensitive high-energy composite material is improved.

[0059] Figure 5 (b) is the pt curve of the closed explosive device of SASN / THT (1%) photosensitive high-energy composite material, and the pressure release reaches 950.4kPa, which is higher than Figure 5 In (a), the pressure release of SASN (916.2 kPa) increased by 3.7%.

[0060] Example 5

[0061] Preparation of solution A: Add 5 mg of THT into 30 mL of acetone solution and stir on a magnetic stirrer at 1000 rpm for 30 min until THT is fully dissolved in acetone;

[0062] Preparation of suspension B: SASN with a particle size of 150 nm-450 nm was added to solution A to form a mixed suspension B, wherein the concentration of SASN was 0.0165 g / mL, and stirring was continued for 30 min at room temperature and in the dark to obtain a suspension in which SASN was fully and evenly dispersed;

[0063] Solvent evaporation and drying: The suspension was evaporated by a rotary evaporator. The rotary evaporation temperature was 45° C. Finally, the composite was collected and dried at room temperature in the dark for 6 h to obtain a photosensitive high-energy composite material.

[0064] Figure 1 (b) is the photosensitive high-energy composite material obtained in Example 5. It was found that the amount of acetone was too much, which resulted in a longer evaporation time of the solution and a longer retention time of the SASN at high temperature, resulting in the discoloration of the SASN (normally white).

[0065] Example 6

[0066] Preparation of solution A: Add 15 mg of THT into 20 mL of acetone solution and stir on a magnetic stirrer at 1000 rpm for 30 min until THT is fully dissolved in the acetone solution;

[0067] Preparation of suspension B: SASN with a particle size of 150 nm-450 nm was added to solution A to form a mixed suspension B, wherein the concentration of SASN was 0.02425 g / mL, and stirring was continued for 30 min at room temperature and in the dark to obtain a suspension in which SASN was fully and evenly dispersed;

[0068] Solvent evaporation and drying: The suspension was evaporated by a rotary evaporator. The rotary evaporation temperature was 40°C. Finally, the composite was collected and dried at room temperature in the dark for 6 hours to obtain a photosensitive high-energy composite material with a particle size of 250nm-500nm.

[0069] Figure 2 (d) is a SEM image of the photosensitive high-energy composite material obtained in Example 6. Compared with Example 4, more THT microparticles are adsorbed on the surface of SASN. This morphological feature shows that THT has successfully achieved effective compounding with SASN. The formation of this composite structure provides a structural basis for improving the photosensitivity of the material. The uniform distribution of THT particles on the surface of SASN is conducive to the absorption and conversion of light energy, thereby enhancing the light response characteristics of the material.

[0070] Figure 3 This is the Fourier transform infrared spectroscopy (FT-IR) analysis result of SASN / THT (3%) photosensitive high-energy composite material. In the spectrum, it can be clearly observed that the -1 The characteristic absorption peak at , which is attributed to the antisymmetric stretching vibration of the azide group (-N3) in the THT molecule. The appearance of this characteristic peak indicates the successful compounding of THT and SASN.

[0071] Figure 4 FIG. 1 is an absorption spectrum of the SASN / THT (3%) photosensitive high-energy composite material in the ultraviolet region (200-300nm). It can be seen that the ultraviolet absorption of the SASN / THT (3%) photosensitive high-energy composite material is higher than that of SASN alone. The highest relative value of ultraviolet absorption can reach 0.7, which is higher than the relative value of ultraviolet absorption of Example 4.

[0072] Figure 5 (c) is the pt curve of the closed explosive device of SASN / THT (1%) photosensitive high-energy composite material. The pressure release of the photosensitive high-energy composite material reaches 1064.4 kPa, which is higher than Figure 5 The pressure release of (a) SASN (916.2 kPa) was increased by 16.2%, which was 12% and 9.4% higher than that of Example 4 and Example 7, respectively. The present invention prepares a photosensitive high-energy composite material by a solvent evaporation induction method; the solvent is acetone, the amount of acetone is 20 mL; the rotary evaporation temperature is 45°C; the THT content is 3% of the photosensitive high-energy composite material.

[0073] Figure 7 (b) is a particle size distribution diagram of SASN / THT (3%) photosensitive high-energy energetic material. The diagram shows that the particle size of SASN / THT (3%) photosensitive high-energy energetic material is in the range of 250nm-500nm.

[0074] Example 7

[0075] Preparation of solution A: Add 25 mg of THT into 20 mL of acetone solution and stir on a magnetic stirrer at 1000 rpm for 30 min until THT is fully dissolved in acetone;

[0076] Preparation of suspension B: SASN with a particle size of 150 nm-450 nm was added to solution A to form a mixed suspension B, wherein the concentration of SASN was 0.02375 g / mL, and stirring was continued for 30 min at room temperature and in the dark to obtain a suspension in which SASN was fully and evenly dispersed;

[0077] Solvent evaporation and drying: The suspension was evaporated by a rotary evaporator at a rotary evaporation temperature of 45°C, and then the composite was collected and dried at room temperature in the dark for 6 hours to obtain a photosensitive high-energy composite material with a particle size of 250nm-500nm.

[0078] Figure 2 (e) is a SEM image of the photosensitive high-energy composite material obtained in Example 6. It can be seen that THT forms a continuous coating layer, encapsulating the SASN particles. Compared with Example 5, the coating degree of THT in this example is improved. This structural feature is conducive to enhancing the light absorption efficiency and light energy conversion ability of the material.

[0079] Figure 3 This is the Fourier transform infrared spectroscopy (FT-IR) analysis result of SASN / THT (5%) photosensitive high-energy composite material. In the spectrum, it can be clearly observed that the -1 The characteristic absorption peak attributable to the antisymmetric stretching vibration of the azide group (-N3) in the THT molecule indicates the successful compounding of THT and SASN.

[0080] Figure 4 The absorption spectrum of the SASN / THT (5%) photosensitive high-energy composite material in the ultraviolet region (200-300nm) is shown. In this wavelength range, the ultraviolet absorption of the SASN / THT (5%) photosensitive high-energy composite material is higher than that of SASN alone. The highest relative value of ultraviolet absorption can reach 0.9, which is significantly higher than that of Example 4 and Example 6.

[0081] Figure 5 (d) is the pt curve of the closed explosive device of the SASN / THT (5%) photosensitive high-energy composite material. The pressure release of the photosensitive high-energy composite material reaches 973.3 kPa, which is 6.2% higher than that of SASN (916.2 kPa) in (a) of Figure (5). However, compared with Example 6, the pressure release is lower.

[0082] Comparative Example 1

[0083] Solution A was prepared by adding 15 mg of azidobenzene into 20 mL of acetone solution and stirring at 1000 rpm on a magnetic stirrer for 30 min.

[0084] Preparation of suspension B: SASN with a particle size of 150nm-450nm was added to solution A to form a mixed solution B, wherein the concentration of SASN was 0.02425g / mL, and stirring was continued for 30min at room temperature and in the dark to obtain a suspension in which SASN was fully and evenly dispersed;

[0085] Solvent evaporation and drying: The suspension was evaporated by a rotary evaporator at a rotary evaporation temperature of 45° C. Finally, the composite was collected and dried at room temperature in the dark for 6 h to obtain a composite material.

[0086] Figure 6 (a) is the absorption spectrum of the composite material prepared in comparative example 1 in the ultraviolet region (200-300nm). It can be observed from the figure that the light absorption performance of the composite photosensitive explosive in the ultraviolet region is lower than that of SASN. This result shows that after azide is used as a photosensitizer and combined with SASN, it not only fails to improve the photosensitivity of the material, but also inhibits the light absorption characteristics of SASN. Therefore, the experimental results fully prove that azide is not suitable as a photosensitizer for SASN.

[0087] Comparative Example 2

[0088] 15 mg of titanium nitride (TIN) was added to 20 mL of acetone solution, and stirred at 1000 rpm on a magnetic stirrer for 30 min; then SASN with a particle size of 150 nm-450 nm was added to form a suspension, wherein the concentration of SASN was 0.02425 g / mL, and the suspension was stirred for 30 min at room temperature and in the dark to obtain a suspension in which SASN was fully dispersed and uniform, and the suspension was evaporated by a rotary evaporator. The rotary evaporation temperature was 45 ° C, and finally, the composite was collected and dried at room temperature in the dark for 6 hours to obtain a composite material.

[0089] Figure 6 (b) is the absorption spectrum of the composite material prepared in comparative example 2 in the ultraviolet region (200-300nm). It can be observed from the figure that the light absorption performance of the composite photosensitive explosive in the ultraviolet band (200-300nm) is reduced, indicating that the composite of TIN and SASN fails to improve the photosensitivity of the material in the ultraviolet band, but has a negative impact on the light absorption characteristics of SASN. This shows that TIN as a photosensitizer is not suitable for composite with SASN to improve the photosensitivity in the ultraviolet band.

[0090] Comparative Example 3

[0091] 15 mg of zinc phthalocyanine was added to 20 mL of acetone solution, and stirred at 1000 rpm on a magnetic stirrer for 30 min; then SASN with a particle size of 150 nm-450 nm was added to form a suspension, wherein the concentration of SASN was 0.02425 g / mL, and the suspension was stirred for 30 min at room temperature and in the dark to obtain a suspension in which SASN was fully dispersed and uniform, and the suspension was evaporated by a rotary evaporator. The rotary evaporation temperature was 45 ° C, and finally, the composite was collected and dried at room temperature in the dark for 6 hours to obtain a composite material. Figure 6 (c) is the absorption spectrum of the composite material obtained in Comparative Example 3 in the ultraviolet region (200-300nm). It can be observed that the photosensitivity of the composite photosensitive explosive is lower than that of SASN, indicating that zinc phthalocyanine is not suitable for composite with SASN to improve the photosensitivity in the ultraviolet band.

[0092] The photosensitive high-energy composite materials SASN / THT (1%), SASN / THT (3%) and SASN / THT (5%) prepared by the solvent evaporation induction method of the present invention have good photosensitivity in the ultraviolet band, and the addition of THT can improve the energy release of the composite photosensitive explosive. The synthesis method of the present invention is simple, safe and effective, and is good for the environment and easy for industrial production. The photosensitive high-energy composite materials SASN / THT (1%), SASN / THT (3%) and SASN / THT (5%) prepared by the solvent evaporation induction self-assembly method of the present invention can be used as photosensitive explosives in X-ray loading technology.

[0093] In the present invention, the addition of THT improves the photosensitivity of the composite material in the ultraviolet band and increases energy release. This composite photosensitive material not only solves the problem of insufficient light response performance of traditional SASN, but also enhances the energy release effect through the high nitrogen characteristics of THT, providing a better technical solution for the application of photosensitive materials.

[0094] The above description is only for the best embodiment of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. However, all changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

[0095] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

Claims

1. A method for preparing a photosensitive high-energy composite material, characterized in that: The following steps are involved: Add silver acetylene-silver nitrate to the 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine solution, stir evenly to obtain a suspension, remove the solvent, dry, and obtain a photosensitive high-energy composite material.

2. The method for preparing the photosensitive high-energy composite material according to claim 1, characterized in that: The amount of the high nitrogen compound 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine is 1%-5% of the mass of the photosensitive high-energy composite material.

3. The method for preparing the photosensitive high-energy composite material according to claim 1, characterized in that: The amount of silver acetylene-silver nitrate used is 95%-99% of the mass of the photosensitive high-energy composite material.

4. The method for preparing the photosensitive high-energy composite material according to claim 1, characterized in that: The particle size of silver acetylene-silver nitrate is 150nm-450nm.

5. The method for preparing the photosensitive high-energy composite material according to claim 1, characterized in that: The solvent used for the 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine solution is acetone.

6. The method for preparing the photosensitive high-energy composite material according to claim 1, characterized in that: The solvent was removed by rotary evaporation.

7. The method for preparing the photosensitive high-energy composite material according to claim 1, characterized in that: The ratio of 4,4',6,6'-tetraazidohydrazine-1,3,5-triazine to acetone is 5-15 mg:10-30 mL.

8. The method for preparing the photosensitive high-energy composite material according to claim 1, characterized in that: The amount of acetylene silver-silver nitrate used is 10-40 g per milliliter of solvent.

9. The method for preparing the photosensitive high-energy composite material according to claim 1, characterized in that: The mixture is stirred evenly at room temperature and protected from light; the mixture is dried in a dark environment.

10. The photosensitive high-energy composite material prepared by the method according to any one of claims 1 to 9, characterized in that: The particle size of the photosensitive high-energy composite material is 250nm-500nm.

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