CN115406307A - Bulletproof flashboard based on oxide filament reinforced ceramic composite material and preparation method - Google Patents

Bulletproof flashboard based on oxide filament reinforced ceramic composite material and preparation method Download PDF

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CN115406307A
CN115406307A CN202210813865.4A CN202210813865A CN115406307A CN 115406307 A CN115406307 A CN 115406307A CN 202210813865 A CN202210813865 A CN 202210813865A CN 115406307 A CN115406307 A CN 115406307A
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layer
composite material
alumina
bulletproof
ceramic
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CN115406307B (en
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王红兴
斯阳
张旋
丁彬
程隆棣
俞建勇
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Donghua University
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Donghua University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H1/00—Personal protection gear
    • F41H1/02—Armoured or projectile- or missile-resistant garments; Composite protection fabrics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
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Abstract

The invention relates to a bulletproof flashboard based on an oxide filament reinforced ceramic composite material and a preparation method thereof, wherein the bulletproof flashboard sequentially comprises a packaging layer, a ceramic layer, a buffer layer and a toughness layer which are mutually bonded from a detonation facing surface to a detonation surface, wherein the packaging layer is a Kevlar cloth combined polyurea coating structure; the ceramic layer is a continuous alumina continuous filament reinforced alumina-based composite material; the buffer layer is made of inorganic fiber reinforced silicon dioxide aerogel composite material; the toughness layer is an ultra-high molecular weight polyethylene fiber fabric. Compared with the prior art, the technical scheme of the invention adopts the continuous alumina filament to reinforce the alumina ceramic bulletproof material, and effectively improves the toughness of the alumina bulletproof ceramic, thereby obviously reducing penetration depth and improving the bulletproof performance of the composite target plate.

Description

Bulletproof flashboard based on oxide filament reinforced ceramic composite material and preparation method
Technical Field
The invention relates to the field of ceramic bulletproof plugboards, in particular to a bulletproof plugboard based on an oxide filament reinforced ceramic composite material and a preparation method thereof.
Background
Ballistic inserts are important protective equipment for protecting individual body parts from bullets, and are commonly used with body armor or tactical vests. The bulletproof flashboard can improve the combat capability and the survival capability of an individual soldier, and plays an important role in reducing army casualties and enhancing the combat capability. The traditional bulletproof flashboard is made of a single-layer material, and can partially protect due to the fact that the material and the structure are single, but the traditional bulletproof flashboard is heavy in weight, high in rigidity and unstable in performance, and cannot meet the requirements of modern military operations.
Composite or composite structural ballistic panels are therefore the focus of current and future developments. The core layer of the composite bulletproof flashboard is a bulletproof layer. The bulletproof layer can be divided into the following materials: metals, high performance fibers, and ceramics. The metal bulletproof plate has good bulletproof performance (such as armor steel, aluminum alloy and titanium alloy) and low manufacturing cost, but the density of metal materials is generally higher, and the mobility of soldiers is greatly influenced by overweight bulletproof clothes. Soft fiber materials such as nylon, kevlar, ultra-high molecular weight polyethylene fiber and polyimide fiber have good flexibility, but the strength of the soft fiber materials is easy to soften and reduce in the penetration process, so that the bulletproof effect is reduced. The currently used hard ceramic materials are alumina ceramic, silicon carbide ceramic, boron carbide ceramic and the like, wherein the silicon carbide ceramic and the boron carbide bulletproof ceramic have high brittleness, radial and circumferential crack failures are easy to occur after penetration, the strength of bulletproof fibers is reduced when the bulletproof fibers are penetrated, fiber fracture, fiber layering, degumming, fiber dispersion and the like are easy to occur, and the bulletproof performance is reduced; alumina materials, however, have relatively good physical properties and performance, are low in cost, and can be manufactured using a variety of techniques, and thus have been widely used in the field of ballistic materials. However, the alumina density was higher (3.96 g/cm) 3 ) Poor fracture toughness, resistance to multiple projectiles and poor ability to dissipate kinetic energy of bullets.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a bulletproof insert plate based on an oxide filament reinforced ceramic composite material and a preparation method thereof, and aims to obtain the bulletproof insert plate with light weight, high-efficiency bulletproof property and flexibility requirements.
The applicant analyzes and considers in the conception process that the improvement of the toughness of the hard alumina ceramic material and the realization of the light weight design of the bulletproof flashboard are effective ways for improving individual protective equipment.
In order to solve the problems, firstly, the aluminum oxide filaments are introduced into the aluminum oxide ceramic to prepare the bulletproof core layer, so that the toughness of the bulletproof core layer is improved; on the basis, the bulletproof flashboard with the laminated structure of aramid cloth/continuous filament reinforced alumina ceramic/silica aerogel buffer layer/ultra-high molecular weight polyethylene is provided, the laminated composite structure, the thickness and the connection process of the bulletproof flashboard are optimized, the bulletproof performance of the material is effectively improved, and the weight of the material is reduced.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a bulletproof inserting plate based on an oxide filament reinforced ceramic composite material, which sequentially comprises an encapsulating layer, a ceramic layer, a buffer layer and a toughness layer which are bonded with each other from a detonation face to a detonated face, wherein specifically:
the packaging layer is of a structure that Kevlar cloth is combined with a polyurea coating;
the ceramic layer is a continuous alumina continuous filament reinforced alumina-based composite material;
the buffer layer is made of inorganic fiber reinforced silicon dioxide aerogel composite material;
the toughness layer is an ultra-high molecular weight polyethylene fiber fabric.
Further, the thickness of the packaging layer is 1-5 mm;
the thickness of the ceramic layer is 5-15 mm;
the thickness of the buffer layer is 3-10 m;
the thickness of the toughness layer is 8-10 mm.
The second purpose of the invention is to provide a preparation method of the bulletproof inserting plate based on the oxide filament reinforced ceramic composite material, which comprises the following steps:
s1: respectively preparing a buffer layer and a toughness layer;
s2: preparing a continuous alumina continuous filament reinforced alumina-based composite material by adopting a slurry impregnation method to obtain a ceramic layer;
s3: and sequentially bonding the ceramic layer with the prepared buffer layer and the toughness layer, then carrying out polyurea packaging treatment on the whole laminated piece to obtain a packaging layer, and finally carrying out vacuum infusion process and curing molding.
Further, the preparation process of the buffer layer comprises the following steps: preparing an inorganic fiber reinforced silica aerogel composite material by in-situ hot-pressing sintering of inorganic fiber reinforced silica aerogel;
the inorganic fiber is one or the combination of more of alumina fiber, glass fiber, aluminosilicate fiber, zirconia, basalt fiber and high silica fiber.
Further, the preparation process of the toughness layer is as follows: the ultra-high molecular weight polyethylene fiber fabric is formed by laminating the ultra-high molecular weight polyethylene fiber fabric.
Further, the process for preparing the continuous alumina continuous filament reinforced alumina-based composite material by adopting a slurry impregnation method comprises the following steps: impregnating an alumina filament woven piece with aqueous alumina powder slurry, and then preparing a continuous alumina continuous filament reinforced alumina-based composite material through hot press forming, drying and calcining;
the diameter of the alumina filament adopted in the alumina filament weaving piece is 5-13 mu m.
Further, the packaging treatment process is that Kevlar cloth is adopted as a surface layer, polyurea is sprayed on the surface by utilizing a reaction injection molding process, and a structure of the Kevlar cloth combined with the polyurea coating is obtained as a packaging layer;
the Kevlar cloth is para-aramid fiber with the surface density of 50-300 g/m 2 。
Further, the ultra-high molecular weight polyethylene fiber fabric is formed by laminating multi-dimensional woven fabrics or two-dimensional loom fabrics;
wherein the surface density of the single-layer two-dimensional woven fabric is 100-200g/m 2 ；
The multi-dimensional woven fabric is a three-dimensional four-direction, three-dimensional five-direction or three-dimensional six-direction woven fabric.
Furthermore, the vacuum infusion process is to carry out negative pressure treatment after vacuum bag packaging, and the negative pressure is-0.1-0 MPa.
Furthermore, the curing and forming temperature is 40-120 ℃, and the curing time is 2-24 h.
Compared with the prior art, the invention has the following technical advantages:
1. according to the technical scheme, the aluminum oxide continuous filaments are adopted to reinforce the aluminum oxide ceramic bulletproof material, so that the toughness of the aluminum oxide bulletproof ceramic is effectively improved, the penetration depth is obviously reduced, and the bulletproof performance of the composite target plate is improved.
2. According to the technical scheme, the silica aerogel buffer layer is introduced, the buffer layer can absorb energy, the action time of the bullet and the ceramic layer can be prolonged, and the damage of the broken ceramic wafer to the toughness layer is effectively avoided; meanwhile, the weight of the bulletproof flashboard is effectively reduced, and the lightweight design of the bulletproof flashboard is realized.
3. According to the technical scheme, the Kevlar fiber and polyurea material are selected as the packaging layer, and the excellent mechanical response characteristics of the polyurea material are combined, so that the energy can be obviously absorbed, the deformation of the bulletproof flashboard is inhibited, and the explosion-proof capability of the bulletproof flashboard is improved.
4. According to the technical scheme, the comprehensive performance of the bulletproof flashboard is effectively improved through the design and optimization of the thickness and the connection process of the four-layer composite laminated structure of the packaging layer, the ceramic layer, the buffer layer and the toughness layer.
Drawings
Fig. 1 is a schematic structural diagram of a bulletproof insert plate based on an oxide filament reinforced ceramic composite material in the technical scheme.
In the figure: 1. a packaging layer 2 and a ceramic layer; 3. buffer layer, 4, toughness layer.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. In the technical scheme, characteristics such as preparation means, materials, structures or composition ratios and the like which are not explicitly described are all regarded as common technical characteristics disclosed in the prior art.
Example 1
The bulletproof flashboard based on the oxide filament reinforced ceramic composite material sequentially comprises a packaging layer 1, a ceramic layer 2, a buffer layer 3 and a toughness layer 4 which are mutually bonded from a detonation surface to a detonated surface, wherein the packaging layer 1 is formed by packaging two-dimensional aramid fabric and polyurea, the ceramic layer 2 is a continuous alumina continuous filament reinforced alumina-based composite material, the buffer layer 3 is an inorganic fiber reinforced silica aerogel composite material, the toughness layer 4 is an ultrahigh molecular weight polyethylene fiber fabric, and all layers of the bulletproof flashboard from the detonation surface to the detonated surface are bonded by thermosetting resin binders.
Wherein specifically: the packaging layer 1 is a structure formed by combining Kevlar cloth with a polyurea coating; the ceramic layer 2 is a continuous alumina continuous filament reinforced alumina-based composite material; the buffer layer 3 is an inorganic fiber reinforced silica aerogel composite material; the toughness layer 4 is an ultra-high molecular weight polyethylene fiber fabric.
The specific size is designed in such a way that the thickness of the packaging layer 1 is 1-5 mm; the thickness of the ceramic layer 2 is 5-15 mm; the thickness of the buffer layer 3 is 3-10 m, and the thickness of the toughness layer 4 is 8-10 mm.
The invention relates to an oxide continuous filament reinforced ceramic matrix composite bulletproof flashboard, wherein a core layer from a front explosion surface to a back explosion surface is respectively as follows: the two-dimensional Kevlar cloth combines polyurea packaging layer, continuous alumina continuous filament reinforcing alumina-based composite material ceramic layer, inorganic fiber reinforcing silica aerogel buffer layer and high molecular weight polyethylene fiber toughness layer, wherein, the core layer of shellproof picture peg is continuous alumina continuous filament reinforcing alumina-based composite material ceramic layer. The ceramic layer provides rigid support for the bulletproof flashboard, is a main force bearing unit of the whole material, and plays good roles of breaking elasticity and absorbing energy, and the ceramic layer selects oxide fibers as reinforcing materials to toughen and reinforce the aluminum oxide ceramic flashboard; the ultra-high molecular weight polyethylene toughness layer is a reverse explosion surface of the bulletproof flashboard and has the functions of preventing the bulletproof flashboard from deforming and breaking down; the buffer layer is positioned between the ceramic layer and the toughness layer and is used as a functional component for absorbing energy and shortening bullet action time; the packaging layer is formed by packaging two-dimensional Kevlar cloth paved on the surface of the functional material and polyurea, can inhibit large deformation of the bulletproof flashboard and has the function of a buffer layer; and bonding the laminated layers by using a thermosetting resin adhesive, and finally performing negative pressure-thermosetting to obtain the bulletproof flashboard integral material.
The preparation method of the bulletproof flashboard based on the oxide filament reinforced ceramic composite material comprises the following steps of firstly preparing an oxide continuous filament reinforced ceramic composite material rigid layer, then sequentially bonding the rigid layer with the prepared buffer layer and the prepared toughness layer, then carrying out polyurea packaging treatment on the whole laminated part, and finally carrying out vacuum infusion process and curing molding, wherein the preparation method specifically comprises the following steps:
s1: respectively preparing a buffer layer 3 and a toughness layer 4; the preparation process of the buffer layer 3 is as follows: preparing an inorganic fiber reinforced silica aerogel composite material by in-situ hot-pressing sintering of inorganic fiber reinforced silica aerogel; the inorganic fiber is one or more of alumina fiber, glass fiber, aluminosilicate fiber, zirconia, basalt fiber and high silica fiber.
The preparation process of the toughness layer 4 comprises the following steps: the ultra-high molecular weight polyethylene fiber fabric is formed by laminating the ultra-high molecular weight polyethylene fiber fabric. The ultra-high molecular weight polyethylene fiber fabric is formed by laminating multi-dimensional woven fabrics or two-dimensional loom fabrics; wherein the surface density of the single-layer two-dimensional woven fabric is 100-200g/m 2 (ii) a The multi-dimensional woven fabric is a three-dimensional four-direction, three-dimensional five-direction or three-dimensional six-direction woven fabric. The toughness layer is formed by laminating 300D, 400D and 500D ultrahigh molecular weight polyethylene fiber fabrics.
S2: preparing a continuous alumina continuous filament reinforced alumina-based composite material by adopting a slurry impregnation method to obtain a ceramic layer 2; the process for preparing the continuous alumina continuous filament reinforced alumina-based composite material by adopting a slurry impregnation method comprises the following steps: impregnating an alumina filament woven piece with aqueous alumina powder slurry, and then preparing a continuous alumina continuous filament reinforced alumina-based composite material through hot press forming, drying and calcining; the diameter of the alumina filament adopted in the alumina filament weaving piece is 5-13 μm.
S3: and sequentially bonding the ceramic layer 2 with the prepared buffer layer 3 and the prepared toughness layer 4, then carrying out polyurea packaging treatment on the whole laminated piece to obtain a packaging layer 1, and finally carrying out vacuum infusion process and curing molding. The packaging treatment process is that Kevlar cloth is adopted as a surface layer, polyurea is sprayed on the surface by utilizing a reaction injection molding process, and a structure of the Kevlar cloth combined with the polyurea coating is obtained and is used as a packaging layer 1; the Kevlar cloth is para-aramid fiber with the surface density of 50-300 g/m 2 。
The vacuum infusion process is to carry out negative pressure treatment after vacuum bag packaging, and the negative pressure is-0.1-0 MPa. The curing and forming temperature is 40-120 ℃, and the curing time is 2-24 h.
Application example 1
S1: preparing a buffer layer: cutting alumina fibers into short fibers with the length of 3 mu m, ball-milling and mixing the short fibers with silicon dioxide aerogel for 1h, putting the short fibers and the silicon dioxide aerogel into a vacuum hot-pressing sintering furnace for in-situ hot-pressing sintering to prepare an inorganic fiber reinforced silicon dioxide aerogel composite material with the thickness of 3mm, wherein the inorganic fiber reinforced silicon dioxide aerogel composite material is used as a buffer layer of the bulletproof flashboard; wherein the in-situ sintering parameters are as follows: the temperature is 1300 ℃, the pressure is 30MPa, and the temperature is kept for 30min.
S2: preparation of the tough layer: passing 400D, and the areal density of 100g/m 2 The two-dimensional ultra-high molecular weight polyethylene fiber fabric is laminated to form the ultra-high molecular weight polyethylene fiber fabric with the thickness of 5mm, and the flexible layer of the bulletproof flashboard is arranged.
S3: preparing a ceramic layer: dipping an alumina filament woven piece with the diameter of 5 mu m into aqueous alumina powder slurry, and then preparing a continuous alumina continuous filament reinforced alumina-based composite material as a ceramic layer of the bulletproof flashboard through hot press forming, drying and calcining; the preparation method of the water-based alumina slurry comprises the following steps: adding alumina powder with the diameter of 100nm, ammonium polyacrylate and polyvinyl alcohol into deionized water, and performing ball milling and mixing for 4 hours to obtain alumina slurry, wherein the content of the alumina powder is 55wt%, and the content of the ammonium polyacrylate and the content of the polyvinyl alcohol are both 3wt% of that of the alumina.
S4: preparing an encapsulation layer: the ceramic layer is sequentially bonded with the prepared buffer layer and the prepared toughness layer by adopting epoxy resin, and then the surface density is 50g/m 2 The para-position Kevlar cloth is used as a surface layer, polyurea is sprayed on the surface by utilizing a reaction injection molding process, the polyurea packaging treatment of the whole laminated part is realized, and finally, a vacuum infusion process and curing molding are carried out. Wherein, the vacuum infusion process is to carry out negative pressure treatment after vacuum bag packaging, and the negative pressure is-0.1 MPa; the thermal curing parameters were: 100 ℃ for 5h.
The live ammunition test (GA 141-2010 standard grade 5 protection rating) was carried out using application example 1, and five rounds were all stopped and resulted in a recess depth (mm) at different projectile velocities, with a backing recess depth of between 13.7 and 19.2mm and a recess depth average of 16.12mm. As shown in table 1:
TABLE 1
Bullet speed (m/s) 827 821 835 829 836
Depth of depression (mm) 14.1 13.7 16.4 17.2 19.2
The embodiments described above are intended to facilitate a person of ordinary skill in the art in understanding and using the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims (10)

1. The utility model provides a shellproof picture peg based on oxide filament reinforcing ceramic composite which characterized in that includes in proper order from meeting the face of exploding to being exploded the face and bonding each other:
the packaging layer (1) is of a structure that Kevlar cloth is combined with a polyurea coating;
the ceramic layer (2) is a continuous alumina continuous filament reinforced alumina-based composite material;
the buffer layer (3) is an inorganic fiber reinforced silicon dioxide aerogel composite material;
the toughness layer (4) is an ultra-high molecular weight polyethylene fiber fabric.
2. A ballistic-resistant insert plate based on an oxide filament reinforced ceramic composite material according to claim 1, characterized in that the thickness of the encapsulation layer (1) is 1-5 mm;
the thickness of the ceramic layer (2) is 5-15 mm;
the thickness of the buffer layer (3) is 3-10 m;
the thickness of the toughness layer (4) is 8-10 mm.
3. A process for the preparation of a ballistic-resistant insert plate based on an oxide filament reinforced ceramic composite material as claimed in claim 1 or 2, characterized in that it comprises the following steps:
s1: respectively preparing a buffer layer (3) and a toughness layer (4);
s2: preparing a continuous alumina continuous filament reinforced alumina-based composite material by adopting a slurry impregnation method to obtain a ceramic layer (2);
s3: and sequentially bonding the ceramic layer (2) with the prepared buffer layer (3) and the prepared toughness layer (4), then carrying out polyurea packaging treatment on the whole laminated piece to obtain a packaging layer (1), and finally carrying out vacuum infusion process and curing molding.
4. A process for the preparation of a ballistic resistant insert panel based on an oxide filament reinforced ceramic composite material according to claim 3, characterized in that the buffer layer (3) is prepared by: preparing an inorganic fiber reinforced silica aerogel composite material by in-situ hot-pressing sintering of inorganic fiber reinforced silica aerogel;
the inorganic fiber is one or the combination of more of alumina fiber, glass fiber, aluminosilicate fiber, zirconia, basalt fiber and high silica fiber.
5. A method for the production of a ballistic resistant insert panel based on an oxide filament reinforced ceramic composite material according to claim 3, characterized in that the ductile layer (4) is produced by the following steps: the ultra-high molecular weight polyethylene fiber fabric is formed by laminating the ultra-high molecular weight polyethylene fiber fabric.
6. The method for preparing the bulletproof flashboard based on the oxide filament reinforced ceramic composite material according to the claim 3, wherein the process for preparing the continuous alumina continuous filament reinforced alumina-based composite material by adopting a slurry impregnation method comprises the following steps: impregnating an alumina filament woven piece with aqueous alumina powder slurry, and then preparing a continuous alumina continuous filament reinforced alumina-based composite material through hot press forming, drying and calcining;
the diameter of the alumina filament adopted in the alumina filament weaving piece is 5-13 mu m.
7. The method for preparing the bulletproof inserting plate based on the oxide filament reinforced ceramic composite material according to the claim 3, wherein the encapsulation treatment process is that Kevlar cloth is adopted as a surface layer, polyurea is sprayed on the surface by utilizing a reaction injection molding process, and a Kevlar cloth and polyurea coating combined structure is obtained as an encapsulation layer (1);
the Kevlar cloth is para-aramid fiber, and the surface density is 50-300 g/m 2 。
8. The method for preparing the bulletproof flashboard based on the oxide filament reinforced ceramic composite material as claimed in claim 5, wherein the ultra-high molecular weight polyethylene fiber fabric is formed by laminating multi-dimensional woven fabrics or two-dimensional loom fabrics;
wherein the surface of the single-layer two-dimensional woven fabricThe density is 100-200g/m 2 ；
The multi-dimensional woven fabric is a three-dimensional four-direction, three-dimensional five-direction or three-dimensional six-direction woven fabric.
9. The method for preparing the bulletproof flashboard based on the oxide filament reinforced ceramic composite material according to the claim 3, wherein the vacuum infusion process is negative pressure treatment after vacuum bag packaging, and the negative pressure is-0.1-0 MPa.
10. The method for preparing the bulletproof insert plate based on the oxide filament reinforced ceramic composite material as claimed in claim 3, wherein the curing molding temperature is 40-120 ℃ and the curing time is 2-24 h.
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