阅读说明：本技术 一种高能量伴爆增压材料及其制备方法 (High-energy explosive-accompanied pressurizing material and preparation method thereof ) 是由 李义和 阳世清 崔伟峰 胡天娇 于 2020-07-22 设计创作，主要内容包括：本发明公开一种高能量伴爆增压材料及其制备方法,该伴爆增压材料包括基体、增强体、添加剂和增塑剂；所述材料以高分子树脂为基体,以金属网或纤维为增强体；所述基体、增强体、添加剂和增塑剂的质量比为(3.5～7.0)：(14.0～21.0)：(70.0～72.0)：(4.0～8.0)；该制备方法包括：S1按质量比称取基体、添加剂和增塑剂,制备浆料；S2将浆料与增强体复合并进行恒温老化,得到伴爆增压材料。本发明提供的伴爆增压材料从复合材料的设计入手,在不增加总用药量的情况下可大幅度提高材料能量释放效能,实现高能钝感化,并赋予材料足够的力学强度；本发明的制备方法工艺简单、成本低,所制备材料的伴爆增压效果明显,可用作壳体换代材料。(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.)

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 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).

2. The high-energy explosion-tracing pressurizing material as claimed in claim 1, wherein the high-molecular resin is one of epoxy resin, phenolic resin, polyurethane resin and polyurea resin.

3. The high-energy explosion-tracing pressure-boosting material according to claim 2, wherein said polymer resin is a fluorine-containing modified resin.

4. The high-energy concomitant detonation pressure-increasing material according to claim 1, wherein the metal mesh is a tungsten mesh or an aluminum mesh; the fibers are chopped or three-dimensional woven bodies of fibers.

5. The high-energy explosive-accompanied pressurizing material as claimed in claim 4, wherein the fiber comprises carbon fiber, Kevlar or aramid fiber.

6. 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.

7. The high-energy explosion-tracing pressure-boosting material according to claim 6, wherein the particle size of said additive is not more than 50 μm.

8. 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.

9. The preparation method of the high-energy explosive-accompanied pressurizing material is characterized by comprising the following steps of:

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.

10. The method according to claim 9, wherein the constant-temperature aging is performed under vacuum at a temperature of 80 to 120 ℃ for 24 to 48 hours.

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.