CN111825950B - High-energy explosive-accompanied pressurizing material and preparation method thereof - Google Patents
High-energy explosive-accompanied pressurizing material and preparation method thereof Download PDFInfo
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- CN111825950B CN111825950B CN202010712920.1A CN202010712920A CN111825950B CN 111825950 B CN111825950 B CN 111825950B CN 202010712920 A CN202010712920 A CN 202010712920A CN 111825950 B CN111825950 B CN 111825950B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/02—Polyureas
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention discloses a high-energy explosive-accompanied pressurizing material and a preparation method thereof, wherein the explosive-accompanied pressurizing material comprises a matrix, a reinforcement body, an additive and a plasticizer; the material takes polymer resin as a matrix and takes metal mesh or fiber as a reinforcement; the mass ratio of the matrix to the reinforcement to the additive to the plasticizer is (3.5-7.0): (14.0-21.0): (70.0-72.0): (4.0-8.0); the preparation method comprises the following steps: s1, weighing the matrix, the additive and the plasticizer according to the mass ratio, and preparing slurry; and S2, compounding the slurry and the reinforcement and carrying out constant-temperature aging to obtain the explosion-tracing pressurizing material. The explosion-tracing pressurizing material provided by the invention starts from the design of a composite material, can greatly improve the energy release efficiency of the material under the condition of not increasing the total dosage, realizes high-energy passivation and endows the material with enough mechanical strength; the preparation method has simple process and low cost, and the prepared material has obvious explosion-tracing pressurization effect and can be used as a shell replacement material.
Description
Technical Field
The invention relates to the technical field of energetic materials, in particular to a high-energy concomitant explosion supercharging material and a preparation method thereof.
Background
At present, the equivalent of TNT (trinitrotoluene) of the simple substance explosive is only 1-1.8 times of that of TNT generally, even if the TNT is mixed, the TNT is difficult to exceed 2.5 times, the TNT is high equivalent by more than 2.5 times, and the approach of increasing the explosive equivalent mainly depends on the increase of the explosive using amount and the increase of the explosive equivalent. Recent studies have shown that the energy increment resulting from the increase in the amount of explosive and the increase in the equivalent weight of explosive is limited, and a series of other problems, such as a sharp increase in sensitivity, a reduction in safety, and a sharp increase in cost, are also caused. Under the condition that the conventional explosive technology is very mature, the practical significance of improving the equivalent weight by developing a novel explosive is not obvious. The development of the technology also puts higher demands on the shell material, such as the requirement of stronger mechanical property, higher material density and higher energy density, so that the shell material can be quickly converted from a solid structural material into a fine powder material with a large specific surface area during explosion, and a large amount of energy is released after the explosion.
Disclosure of Invention
The invention provides a high-energy explosion-tracing pressurizing material and a preparation method thereof, which are used for overcoming the defects of limited explosive energy increment, greatly increased sensitivity, poor mechanical property and the like in the prior art, starting from the design of a composite material, greatly improving the energy release efficiency of the composite material under the condition of not increasing the total dosage, realizing high-energy passivation of the material and endowing the material with enough mechanical strength.
In order to achieve the purpose, the invention provides a high-energy explosive-accompanied pressurizing material, which comprises a matrix, a reinforcement body, an additive and a plasticizer; the material takes polymer resin as a matrix and takes metal mesh or fiber as a reinforcement; the mass ratio of the matrix to the reinforcement to the additive to the plasticizer is (3.5-7.0): (14.0-21.0): (70.0-72.0): (4.0-8.0).
In order to achieve the purpose, the invention also provides a preparation method of the high-energy explosive-accompanied pressurizing material, which comprises the following steps:
s1: according to the mass ratio (3.5-7.0): (14.0-21.0): (70.0-72.0): (4.0-8.0) weighing the matrix, the reinforcement, the additive and the plasticizer, and uniformly mixing the matrix, the additive and the plasticizer to obtain slurry;
s2: and compounding the slurry and the reinforcement, and aging at constant temperature to obtain the high-energy explosion-tracing pressurizing material.
Compared with the prior art, the invention has the beneficial effects that:
1. the high-energy explosive-accompanied pressurizing material provided by the invention comprises a matrix, a reinforcement, an additive and a plasticizer; the material takes macromolecular resin as a matrix and takes a metal net or fiber as a reinforcement; the mass ratio of the matrix to the reinforcement to the additive to the plasticizer is (3.5-7.0): (14.0-21.0): (70.0-72.0): (4.0-8.0). The explosion-tracing pressurizing material starts from the design of a composite material, can greatly improve the energy release efficiency of the material under the condition of not increasing the total dosage, realizes high-energy passivation, and endows the material with enough mechanical strength due to the use of a reinforcement.
2. The preparation method of the high-energy explosive-accompanied pressurizing material comprises the steps of weighing a matrix, an additive and a plasticizer according to the mass ratio, preparing slurry, compounding the slurry and a reinforcement, and carrying out constant-temperature aging to prepare the explosive-accompanied pressurizing material. The method has simple process and low cost, and the prepared material has obvious explosion-tracing pressurization effect and is suitable for various shell upgrading materials.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the attached tables in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The drugs/reagents used are all commercially available without specific mention.
The invention provides a high-energy explosive-accompanied pressurizing material, which comprises a matrix, a reinforcement, an additive and a plasticizer; the material takes polymer resin as a matrix and takes metal mesh or fiber as a reinforcement; the mass ratio of the matrix to the reinforcement to the additive to the plasticizer is (3.5-7.0): (14.0-21.0): (70.0-72.0): (4.0-8.0).
The explosion-tracing pressurizing material provided by the invention starts from the design of a composite material, can greatly improve the energy release efficiency of the material under the condition of not increasing the total dosage, realizes high-energy passivation, and endows the material with enough mechanical strength due to the use of a reinforcement.
Preferably, the polymer resin is one of an epoxy resin, a phenolic resin, a polyurethane resin and a polyurea resin.
Preferably, the polymer resin is a resin modified by fluorine, and the explosion-tracing pressurizing material finally prepared by modifying the resin by fluorine has better explosion-tracing pressurizing effect.
Preferably, the metal mesh is a tungsten mesh or an aluminum mesh; the fibers are chopped or three-dimensional woven bodies of fibers.
Preferably, the fibres comprise carbon fibres, kevlar or aramid fibres.
The selected metal mesh and fibers not only can endow the material with enough mechanical strength, but also can promote the explosion-tracing pressurization effect of the final product.
Preferably, the additive is at least one of aluminum powder, hafnium powder, tantalum powder, tungsten powder and zirconium powder.
Preferably, the particle size of the additive is less than or equal to 50 μm.
Preferably, the plasticizer is at least one of dioctyl sebacate (DOS), dibutyl phthalate (DBP), dioctyl phthalate (DOP), butanetriol trinitrate (PTTN).
The invention also provides a preparation method of the high-energy explosive-accompanied pressurizing material, which comprises the following steps:
s1: according to the mass ratio (3.5-7.0): (14.0-21.0): (70.0-72.0): (4.0-8.0) weighing the matrix, the reinforcement, the additive and the plasticizer, and uniformly mixing the matrix, the additive and the plasticizer to obtain slurry;
s2: and compounding the slurry and the reinforcement, and aging at constant temperature to obtain the high-energy explosion-tracing pressurizing material.
Preferably, the constant-temperature aging is carried out under a vacuum condition, the temperature is 80-120 ℃, and the time is 24-48 hours.
The preparation method of the high-energy explosive-accompanied pressurizing material comprises the steps of weighing a matrix, an additive and a plasticizer according to the mass ratio, preparing slurry, compounding the slurry and a reinforcement, and carrying out constant-temperature aging to prepare the explosive-accompanied pressurizing material. The method has simple process and low cost, and the prepared material has obvious explosion-tracing pressurization effect and is suitable for various shell upgrading materials.
Example 1
The embodiment provides a high-energy explosion-tracing pressurizing material, which takes epoxy resin as a matrix and tungsten (W) mesh as a reinforcement, and the basic components of the material are shown in table 1.1.
The embodiment provides a preparation method of a high-energy explosive-accompanied pressurizing material, which comprises the following steps:
s1: according to the mass ratio of 3.9: 20.2: 71.5: 4.4 weighing the matrix, the reinforcement, the additive and the plasticizer, and uniformly mixing the matrix, the additive and the plasticizer to obtain slurry;
s2: and compounding the slurry and the reinforcement, and aging at 100 ℃ for 40h under a vacuum condition to obtain the high-energy explosion-tracing pressurizing material.
The application of the high-energy explosion-tracing pressurizing material provided by the embodiment as a shell material comprises the following specific steps:
(1) compounding the slurry prepared in the embodiment with a reinforcement tungsten mesh and winding the slurry on a core mold to obtain a shell prepolymer;
(2) carrying out constant-temperature aging on the prepolymer obtained in the step (1) at 100 ℃ for 40h under a vacuum condition, cooling, removing a core mold, and carrying out punching and milling molding according to design requirements to obtain an energy-containing shell;
(3) and (3) charging the energy-containing shell prepared in the step (2) (the charging amount is 100g by adopting conventional TNT) to obtain the high-energy explosive-tracing pressurizing composite shell material.
The results of the shock wave impulse test and the shock wave overpressure test on the high-energy explosion-tracing pressurization composite shell material are shown in tables 1.2 and 1.3, the shock wave impulse increment reaches 103.5 percent and the shock wave overpressure increment reaches 113.0 percent when the distance is 2.5 meters away from the explosion center, and the explosion-tracing pressurization effect is obvious.
Example 2
The embodiment provides a high-energy explosion-tracing pressurizing material, which takes polyurea resin as a matrix and aramid fiber as a reinforcement, and the basic components of the material are shown in table 2.1.
The embodiment provides a preparation method of a high-energy explosive-accompanied pressurizing material, which comprises the following steps:
s1: according to the mass ratio of 6.53: 14.5: 71.5: 7.47 weighing the matrix, the reinforcement, the additive and the plasticizer, and uniformly mixing the matrix, the additive and the plasticizer to obtain slurry;
s2: and compounding the slurry and the reinforcement, and carrying out constant-temperature aging treatment for 36h at 110 ℃ under a vacuum condition to obtain the high-energy explosion-tracing pressurizing material.
The application of the high-energy explosion-tracing pressurizing material provided by the embodiment as a shell material comprises the following specific steps:
(1) compounding the slurry prepared in the embodiment with the aramid fiber reinforcement and winding the composite slurry on a core mold to obtain a shell;
(2) carrying out constant-temperature aging treatment on the prepolymer obtained in the step (1) at 110 ℃ for 36h under a vacuum condition, cooling, removing a core mold, and carrying out punching and milling molding according to design requirements to obtain an energy-containing shell;
(3) and (3) charging the energy-containing shell prepared in the step (2) (the charging amount is 100g by adopting conventional TNT) to obtain the high-energy explosive-tracing pressurizing composite shell material.
The results of the shock wave impulse test and the shock wave overpressure test on the high-energy explosion-tracing pressurization composite shell material are shown in tables 2.2 and 2.3, the shock wave impulse increment reaches 98.8% when the distance is 2.5 meters away from the explosion center, the shock wave overpressure increment reaches 118.5%, and the explosion-tracing pressurization effect is obvious.
Table 1.1 basic components of the explosion-suppressing material of example 1
Table 1.2 shock wave impulse test results of the explosion-associated pressurized material of example 1
Table 1.3 results of the shock wave overpressure test of the explosion-associated pressurized material of example 1
Table 2.1 basic components of the explosion-suppressing material of example 2
Table 2.2 shock wave impulse test results of the explosion-associated pressurized material of example 2
Table 2.3 results of the shock wave overpressure test of the explosion-associated pressurized material of example 2
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.
Claims (7)
1. The high-energy explosive-accompanied pressurizing material is characterized by comprising a matrix, a reinforcement, an additive and a plasticizer; the material takes polymer resin as a matrix and takes a metal net as a reinforcement; the mass ratio of the matrix to the reinforcement to the additive to the plasticizer is (3.5-7.0): (14.0-21.0): (70.0-72.0): (4.0-8.0);
the high polymer resin is one of epoxy resin, phenolic resin, polyurethane resin and polyurea resin;
the metal net is a tungsten net or an aluminum net;
the material also includes a curing agent.
2. The high-energy explosion-tracing pressurizing material as claimed in claim 1, wherein the polymer resin is a fluorine-containing modified resin.
3. The high-energy detonation-accompanied pressurizing material as set forth in claim 1, wherein the additive is at least one of aluminum powder, hafnium powder, tantalum powder, tungsten powder, and zirconium powder.
4. The high-energy explosion-tracing pressure-boosting material according to claim 3, wherein the particle size of said additive is not more than 50 μm.
5. The high energy booster material of claim 1, wherein the plasticizer is at least one of dioctyl sebacate, dibutyl phthalate, dioctyl phthalate, and butanetriol trinitrate.
6. A preparation method of the high-energy concomitant detonation pressurization material according to any one of claims 1 to 5 is characterized by comprising the following steps:
s1: according to the mass ratio (3.5-7.0): (14.0-21.0): (70.0-72.0): (4.0-8.0) weighing the matrix, the reinforcement, the additive and the plasticizer, and uniformly mixing the matrix, the additive and the plasticizer to obtain slurry;
s2: and compounding the slurry and the reinforcement, and aging at constant temperature to obtain the high-energy explosion-tracing pressurizing material.
7. The preparation method according to claim 6, wherein the constant-temperature aging is carried out under vacuum at a temperature of 80 to 120 ℃ for 24 to 48 hours.
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