CN107248882A - A kind of emergency communication electronics cloud cluster formula and preparation method thereof - Google Patents

Abstract

The invention relates to an electronic cloud formula for emergency communication and a preparation method thereof, belonging to the field of emergency communication. Including oxidizing agent, combustible agent, adhesive and electromagnetic wave reflector; Dissolving the adhesive to obtain a solution; ℃ to 45 ℃ and dried to obtain the required electronic cloud generating agent for emergency communication. The mixing effect of the components of the electronic cloud generating agent of the invention is better, and the compressed powder column has excellent mechanical properties, and can burn more fully during deflagration so as to generate high-density conductive ions to the greatest extent.

Description

A kind of emergency communication electronic cloud formula and preparation method thereof

technical field

The invention relates to an electronic cloud formula for emergency communication and a preparation method thereof, belonging to the field of emergency communication.

Background technique

In sudden wars, natural disasters and other emergencies, for the enemy's devastating blow and large-scale electronic interference, natural disasters seriously damage the basic communication equipment and the extremely harsh activity environment, conventional communication methods are often unable to meet the communication needs . Emergency communication is a special communication mechanism provided in response to wars or man-made emergencies. Its purpose is to use unconventional technical means to restore international, national and regional security in the event of damage to communication network facilities, performance degradation, or special communication support tasks. Or local communication capabilities, so that no matter when and where, and what access method is used, emergency personnel can use the remaining and temporarily deployed communication resources to establish communication connections as much as possible, and ensure smooth communication to the greatest extent in emergency situations, so as to achieve Report the war situation in time, implement emergency rescue, reduce losses and guarantee the purpose of post-war reconstruction. Emergency communication provides timely and effective communication support for various emergencies, and is an important part of the comprehensive emergency support system. After the emergency communication electronic cloud formula is detonated in a certain way, it can realize the effective reflection of electromagnetic waves, which can replace relay satellites, improve sky wave communication, build emergency over-the-horizon communication links, and improve emergency over-the-horizon communication capabilities in wartime.

For a long time, many countries in the world have attached great importance to the research and development of emergency communication, especially developed countries in Europe and America and Japan in Asia. The United States has been building a minimum emergency communication network since the 1970s to ensure the command and dispatch of American authorities in response to emergencies. It implements the communication priority service plan, and uses new communication technologies such as Free Space Optical Communication (FSO, Free Space Optics), Microwave Access Global Interoperability (WiMAX, Worldwide Interoperability for Microwave Access) and Wireless Fidelity (WiFi, Wireless Fidelity) to Improve emergency communication support capabilities. Secondly, Japan has established a relatively complete emergency communication network system, such as the central disaster prevention wireless network and the disaster prevention Internet communication network. The central disaster prevention wireless network is the skeleton network of Japan's disaster prevention communication network, which consists of fixed communication lines, satellite communication lines and mobile communication lines. The disaster prevention Internet communication network can quickly connect multiple disaster prevention and rescue agencies on the spot to exchange various on-site disaster relief information, so as to effectively conduct command and dispatch and rescue and disaster relief. my country's modern emergency communication research started relatively late, and the development of emergency communication in my country can be roughly divided into three stages. The first stage was before 1998, the second stage was 1998-2003, and the third stage was 2003-2008. . In addition, my country has also officially launched the research on emergency communication standards since 2004, covering the comprehensive system and standards of emergency communication, the requirements for public communication networks to support emergency communication, and emergency special service calls. However, the method of releasing electronic clouds to realize beyond-horizon emergency communication has not yet been seen in China.

Contents of the invention

The purpose of the present invention is to provide a kind of emergency communication electronic cloud formula and its preparation method, the formula and preparation method can realize the effective reflection of electromagnetic waves, replace the relay satellite and improve the sky wave communication, and construct the emergency trans-horizon communication link, Electronic cloud formula to enhance beyond-line-of-sight communication capabilities in wartime and natural disaster emergencies.

The purpose of the present invention is achieved through the following technical solutions.

An electronic cloud formula for emergency communication includes: oxidizer, combustible agent, adhesive and electromagnetic wave reflector;

The mass ratio of oxidizing agent, combustible agent, binding agent and electromagnetic wave reflector consists of:

The oxidizing agent includes: KClO ₃ , KNO ₃ , NH ₄ ClO ₄ or KClO ₄ ;

The combustible agent includes: Mg powder, Al powder and red phosphorus;

The adhesive includes: epoxy resin, phenolic resin, paraffin, shellac or polytetrafluoroethylene;

The electromagnetic wave reflector includes: barium powder and zinc powder;

The proportion of the combustible agent in the total mass of the formula is respectively 8%-10% of the total mass of the formula for Mg powder, 8%-10% of the total mass of the formula for Al powder and 6%-20% of the total mass of the formula for red phosphorus;

The sum of the mass of oxidant, combustible agent, adhesive and electromagnetic wave reflector is the total mass.

The ratio of the reflector to the total mass of the formula is that barium powder accounts for 15-30% of the total mass of the formula and zinc powder accounts for 15-40% of the total mass of the formula;

Wherein, the particle size of the magnesium powder is 10 μm, the particle size of the aluminum powder is 40 μm, the barium powder is 40 μm, the zinc powder is 40 μm, and the boron powder is 40 μm.

The optimum mass ratio composition of the electronic cloud emergency communication formula of the present invention is: NH ₄ ClO ₄ 24%, Mg powder 10%, Al powder 10%, red phosphorus 12%, epoxy resin 7%, barium powder 20%, zinc Powder 17%.

A preparation method of emergency communication electronic cloud formula:

Step 1, dissolving the adhesive to obtain a solution;

Step 2: Add a combustible agent to the solution obtained in Step 1, and stir evenly; then add an oxidizing agent and an electromagnetic wave reflector respectively; after stirring evenly, dry it at a temperature of 25°C to 45°C to obtain the required electronic cloud for emergency communication generator.

Beneficial effect

1. The mixing effect of the components of the electronic cloud generator prepared by the above preparation method is better. In addition, the compressed grain has excellent mechanical properties and can burn more fully during deflagration so as to produce high-density conductive ions to the greatest extent. .

2. The prepared electron cloud generating agent can adjust the shape of the modeling powder arbitrarily according to the different emission modes, and the sensitivity is low, which is convenient for charging.

3. The experiment can be scaled up according to the actual needs.

Description of drawings

Figure 1 is; 4mm, 20mm thickness electron cloud group at 3000K to frequency 30-300MHz electromagnetic wave reflectivity;

Figure 2 shows the reflectivity of 4mm and 20mm thick electron clouds to electromagnetic waves with a frequency of 30-300MHz at 3500K;

Figure 3 shows the power reflectivity of electron clouds with a thickness of 4mm at different angles;

Figure 4 is; after the deflagration of the electron cloud agent, the probe detects the conductive ion density diagram.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

An electronic cloud formula for emergency communication, its mass ratio composition is: NH ₄ ClO ₄ 24%, Mg powder 10%, Al powder 10%, red phosphorus 12%, epoxy resin 7%, barium powder 20%, zinc powder 17%.

A preparation method (total mass is 20g) of an emergency communication electronic cloud formula: first weigh 1.4g epoxy resin and place it in a container containing 25ml of absolute ethanol, stir, slowly heat to 60 degrees Celsius, and wait until the epoxy resin is completely After dissolving, add 2.0g of Mg powder, 2.0g of Al powder and 2.4g of red phosphorus respectively, and stir slowly for 35min. g, 3.4g of zinc powder, after being fully stirred evenly, transferred to a vacuum drying oven within the temperature range of 25°C-45°C and dried for 60min to obtain the required electronic cloud generator for emergency communications.

The electronic cloud emergency communication formula of the present invention (including the embodiment) is ignited by electric ignition in a vacuum tank of 100*80cm, and the time for complete combustion to generate conductive ions is 4s. The conductive ion is tested by Langmuir ALP-150 type probe. Related properties such as electron density, effective action time and effective action radius of ions.

1. Langmuir ALP-150 type probe to test the electron density principle of the product after deflagration of the electron cloud formula

The maximum frequency at which a vertically incident electromagnetic wave is reflected is called the critical frequency (fc), which is the frequency of the plasma generated in this formula, and its value is proportional to the electron density _Ne of the plasma field, which can be calculated as:

Among them, ε ₀ is the vacuum permittivity, and m _e is the electron mass.

Considering the dielectric constant of the atmosphere at normal temperature and pressure, the critical frequency formula can be simplified as

After the electron cloud agent deflagrates, the electron density in the electron cloud can be measured by detecting the critical frequency (fc) of the probe.

2. Test method for the effective action time of electron cloud

In order to realize short-wave/ultrashort-wave communication, the plasma field is required to have a certain electron density and ion density. Therefore, the effective action time of the electron cloud can be judged by judging the electron density. After the deflagration of the electron cloud agent, the critical frequency (fc) of the Langmuir ALP-150 probe can be dynamically detected, and the electron density in the electron cloud can be indirectly measured, and the effective function of the electron cloud can be judged according to the change of the electron density in the electron cloud time.

3. Test method for the effective radius of action of kilogram-level agents

After the deflagration of the kilogram-level agent, the effective radius of the kilogram-level agent can be judged by checking the signal strength of the electromagnetic wave receiving device by setting the distance between the electromagnetic wave emitting device with different gradients and the deflagration area of the agent.

Table 1 The performance data of the best formula

Electron density e/m ³ Effective action time/s Effective radius of action/m 4.22×10 ¹⁹ e/m ³ 29s 11.2m

Example 2

The formulation in Table 2 and the same preparation method as in Example 1 were used to prepare the required electronic cloud generating agent for emergency communication. Table 3 is the performance data of the electron cloud generating agent of Example 2.

Table 2

formula Oxidizing agent (NH ₄ ClO ₄ ) Combustible agent (magnesium powder, aluminum powder, red phosphorus) Reflector (barium powder zinc powder) Adhesive 1 25% 10%, 10%, 20% 18%, 12% 5% epoxy resin 2 20% 10%, 8%, 15% 20%, 20% 7% phenolic resin 3 twenty two% 8%, 10%, 10% 22%, 18% 10% (paraffin)

table 3

Electron Cloud Recipe Electron density e/m ³ Effective action time/s Effective radius of action/m 1 2.22×10 ¹⁸ twenty four 8.4 2 6.08×10 ¹⁸ 28 8.6 3 1.26×10 ¹⁹ 31 10.3

Example 3

The formulation in Table 4 and the same preparation method as in Example 1 were used to prepare the required electronic cloud generating agent for emergency communication. Table 5 is the performance data of the electron cloud generating agent of Example 3.

Table 4

formula Oxidizing agent (NH ₄ ClO ₄ ) Combustible agent (magnesium powder, aluminum powder, red phosphorus) Reflector (barium powder zinc powder) Adhesive 4 25% 10%, 10%, 20% 15%, 15% 5% shellac 5 20% 10%, 8%, 15% 20%, 20% 7% Tetrafluoroethylene 6 twenty two% 8%, 10%, 10% 22%, 18% 10% tetrafluoroethylene

table 5

Electron Cloud Recipe Electron density e/m ³ Effective action time/s Effective radius of action/m 4 2.36×10 ¹⁸ twenty three 7.8 5 4.98×10 ¹⁸ 27 7.3 6 3.52×10 ¹⁹ 34 9.3

It can be known from the above that this electronic cloud formula for emergency communication adopts bomb-borne, vehicle-mounted, airborne or other launch methods, and has a long action time after deflagration and a wide range, and can produce conductive ions with high electron density that can effectively reflect electromagnetic waves. It can replace relay satellites and improve sky wave communication in a short period of time within a certain radius area, and enhance the emergency over-the-horizon communication capability in wartime.

The specific description above is to further describe the purpose, technical solution and beneficial effect of the invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not used to limit the protection scope of the present invention. , Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. An emergency communication electronic cloud formula is characterized in that: comprising: oxidizer, combustible agent, adhesive and electromagnetic wave reflector; The mass ratio of oxidizing agent, combustible agent, binding agent and electromagnetic wave reflector consists of: 2 . The electronic cloud formula for emergency communication according to claim 1 , wherein the oxidizing agent comprises: KClO ₃ , KNO ₃ , NH ₄ ClO ₄ or KClO ₄ . 3. A kind of emergency communication electronic cloud formula as claimed in claim 1, is characterized in that: described combustible agent comprises: Mg powder, Al powder and red phosphorus. 4. The electronic cloud formula for emergency communication according to claim 1, wherein the adhesive comprises: epoxy resin, phenolic resin, paraffin, shellac or polytetrafluoroethylene. 5. The electronic cloud formula for emergency communication according to claim 1, wherein the electromagnetic wave reflector comprises: barium powder and zinc powder. 6. A kind of electronic cloud formula for emergency communication as claimed in claim 1 or 3, characterized in that: said combustible agent accounts for 8% to 10% of the total formula mass of Mg powder and 8% to 10% of Al powder respectively. It accounts for 8% to 10% of the total mass of the formula and red phosphorus accounts for 6% to 20% of the total mass of the formula. 7. A kind of electronic cloud formula for emergency communication as claimed in claim 1 or 5, characterized in that: the ratio of the reflector to the total mass of the formula is that barium powder accounts for 15% to 30% of the total mass of the formula and zinc powder accounts for 15% to 30% of the total mass of the formula. 15-40% of the total mass of the formula. 8. An electronic cloud formula for emergency communication as claimed in claim 1, 3 or 5, characterized in that: the particle size of the magnesium powder is 10 μm, the particle size of the aluminum powder is 40 μm, the barium powder is 40 μm, and the zinc powder is 40 μm , boron powder 40μm; 9. A kind of electronic cloud formula for emergency communication as claimed in claim 1, characterized in that: the mass ratio of the electronic cloud emergency communication formula consists of: NH ₄ ClO ₄ 24%, Mg powder 10%, Al powder 10%, red phosphorus 12%, epoxy resin 7%, barium powder 20% and zinc powder 17%. 10. A method for preparing an emergency communication electronic cloud formula, characterized in that: the specific steps are as follows: Step 1, dissolving the adhesive to obtain a solution; Step 2: Add a combustible agent to the solution obtained in Step 1, and stir evenly; then add an oxidizing agent and an electromagnetic wave reflector respectively; after stirring evenly, dry it at a temperature of 25°C to 45°C to obtain the required electronic cloud for emergency communication generator.