阅读说明：本技术 一种高强防弹面料及其制备方法 (High-strength bulletproof fabric and preparation method thereof ) 是由 沙嫣 沙晓林 马立国 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种高强防弹面料及其制备方法,该方法包含：步骤1,按比例称取各原料；步骤2,制备纤维单向布树脂层；步骤3,在纤维单向布树脂层的表面上涂覆金属涂层,进行干燥；步骤4,采用高强抗冲击材料,覆盖在金属涂层表面；步骤5,在高强抗冲击材料再覆盖一层缓冲层；步骤6,进行干燥,升温定型,得到高强防弹面料。该高强防弹面料由四层结构组成,从外向内的第一层为纤维单向布树脂层,第二层为金属涂层,第三层为高强抗冲击材料层,第四层为缓冲层。本发明还提供了通过该方法制备的高强防弹面料。本发明提供的高强防弹面料及其制备方法,制备的多功能高强面料,柔韧性好,重量降低,防弹能力强,可以制作各种高强防弹服装。(The invention discloses a high-strength bulletproof fabric and a preparation method thereof, wherein the method comprises the following steps: step 1, weighing raw materials in proportion; step 2, preparing a fiber unidirectional cloth resin layer; step 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying; step 4, covering the surface of the metal coating with a high-strength impact-resistant material; step 5, covering a buffer layer on the high-strength impact-resistant material; and 6, drying, heating and shaping to obtain the high-strength bulletproof fabric. The high-strength bulletproof fabric is composed of four layers of structures, wherein the first layer from outside to inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer. The invention also provides the high-strength bulletproof fabric prepared by the method. The multifunctional high-strength bulletproof fabric and the preparation method thereof provided by the invention have the advantages of good flexibility, reduced weight and strong bulletproof capability, and can be used for manufacturing various high-strength bulletproof clothes.)

1. A preparation method of a high-strength bulletproof fabric is characterized by comprising the following steps:

step 1, weighing raw materials in proportion;

step 2, preparing a fiber unidirectional cloth resin layer;

step 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying;

step 4, covering the surface of the metal coating with a high-strength impact-resistant material;

step 5, covering a buffer layer on the high-strength impact-resistant material;

and 6, drying, heating and shaping to obtain the high-strength bulletproof fabric.

2. The method for preparing a high-strength bulletproof fabric according to claim 1, wherein the fiber unidirectional cloth resin layer is a multilayer structure formed by compounding a plurality of unidirectional cloths, and the number of layers is 10-15.

3. The method for preparing a high-strength bulletproof fabric according to claim 2, wherein the unidirectional fabric is made of one or more of aramid fibers, high molecular weight polyethylene fibers, high molecular weight polypropylene fibers, aramid fibers and PBO fibers.

4. The method for preparing the high-strength bulletproof fabric as claimed in claim 1, wherein the metal coating is an impact-resistant coating, and is coated on the surface of the fiber unidirectional cloth resin layer, and the coating thickness is 300 and 400 nm.

5. The method for preparing a high-strength bulletproof fabric according to claim 4, wherein the metal coating comprises, by weight, 35 to 40 parts of strontium carbonate, 40 to 49 parts of aluminum oxide, 2.5 to 3.1 parts of europium oxide, 2.5 to 3.1 parts of boric acid, 0.1 to 0.2 part of ammonium salt, and 2.5 to 2.8 parts of dysprosium oxide.

6. The method for preparing high-strength bulletproof fabric according to claim 1, wherein the high-strength impact-resistant material is a high polymer material, a polyurea high polymer material is adopted, the VOC content is 50-150g/L, and the thickness is 2-4 mm.

7. The method for preparing high-strength bulletproof fabric according to claim 1, wherein the buffer layer is made of any one or more of high polymer D3O, EVA silica gel and TPU elastic foam, and the thickness is 2-4 mm.

8. The method for preparing the high-strength bulletproof fabric as claimed in claim 1, wherein in the step 6, the temperature is raised to 130-150 ℃ after drying, and the high-strength bulletproof fabric is obtained after shaping for 3-5 min.

9. The method for preparing a high-strength bulletproof fabric according to claim 1, wherein the high-strength bulletproof fabric prepared by the method is of a four-layer structure, the first layer from the outside to the inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating layer, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer.

10. A high strength ballistic resistant panel made by the process of any one of claims 1 to 9.

Technical Field

The invention relates to a multifunctional high-strength fabric and a preparation method thereof, in particular to a high-strength bulletproof fabric and a preparation method thereof.

Background

Body armor is a kind of clothes used for protecting the injury of warheads or shrapnel to human bodies, and is mostly equipped in explosion-proof policemen and special forces, thereby protecting the personal safety and reducing the number of actual combat casualties. The types of body armor are various, and from the material point of view, the body armor can be divided into three types, namely soft body, hard body and soft-hard composite body. The material of the soft body armor mainly comprises high-performance textile fibers which are far higher than the energy absorption capacity of common materials, so that the body armor is endowed with the bulletproof function, and the body armor generally adopts the structure of textiles, so that the body armor has quite flexibility; the hard body armor takes metal materials such as special steel plates, super-strong aluminum alloy and the like or hard nonmetal materials such as aluminum oxide, silicon carbide and the like as main body armor materials, and the armor made by the method generally has no flexibility; the softness of the soft-hard composite body armor is between the two types, the soft material is used as an inner lining, the hard material is used as a panel and a reinforcing material, and the composite body armor is formed.

The hard body and soft and hard body composite body armor has higher bulletproof grade, but the material lacks flexibility, and the weight and the like can not be controlled, so the armor can only be used as key parts for armor, and is not suitable for the protection of the whole body.

Disclosure of Invention

The invention aims to provide a multifunctional high-strength fabric and a preparation method thereof, the prepared fabric has good flexibility, reduced weight and strong bulletproof capability, and can be used for manufacturing various high-strength bulletproof clothes.

In order to achieve the above object, the present invention provides a method for preparing a high-strength bulletproof fabric, wherein the method comprises: step 1, weighing raw materials in proportion; step 2, preparing a fiber unidirectional cloth resin layer; step 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying; step 4, covering the surface of the metal coating with a high-strength impact-resistant material; step 5, covering a buffer layer on the high-strength impact-resistant material; and 6, drying, heating and shaping to obtain the high-strength bulletproof fabric.

In the preparation method of the high-strength bulletproof fabric, the fiber unidirectional cloth resin layer is of a multilayer structure formed by compounding a plurality of unidirectional cloths, and the number of layers is 10-15.

In the preparation method of the high-strength bulletproof fabric, the unidirectional fabric adopts one or more of aramid fiber, high molecular weight polyethylene, high molecular weight polypropylene, aramid fiber and PBO fiber.

The preparation method of the high-strength bulletproof fabric comprises the step of coating the metal coating on the surface of the fiber unidirectional cloth resin layer by using an impact-resistant coating layer, wherein the thickness of the coating layer is 300-400 nm.

The preparation method of the high-strength bulletproof fabric comprises the following components, by weight, 35-40 parts of strontium carbonate, 40-49 parts of aluminum oxide, 2.5-3.1 parts of europium oxide, 2.5-3.1 parts of boric acid, 0.1-0.2 part of ammonium salt and 2.5-2.8 parts of dysprosium oxide.

The preparation method of the high-strength bulletproof fabric comprises the steps of preparing a high-strength impact-resistant material, preparing a polyurea high-molecular material, and preparing the high-strength bulletproof fabric with the VOC content of 50-150g/L and the thickness of 2-4 mm.

In the preparation method of the high-strength bulletproof fabric, the buffer layer is made of any one or more of high polymer D3O, EVA silica gel and TPU elastic foam, and the thickness is 2-4 mm.

In the step 6, the temperature is raised to 130-150 ℃ after drying, and the high-strength bulletproof fabric is obtained after shaping for 3-5 min.

The preparation method of the high-strength bulletproof fabric comprises a four-layer structure, wherein the first layer from outside to inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer.

The invention also provides the high-strength bulletproof fabric prepared by the method.

The high-strength bulletproof fabric and the preparation method thereof provided by the invention have the following advantages:

according to the preparation method of the novel high-strength bulletproof fabric, the four-layer material design is adopted, the surface protective layer can effectively buffer the impact of bullets, the inner soft wear-resistant layer is comfortable to wear, the durability is good, the multilayer composition is optimized, and the novel high-strength bulletproof fabric is suitable for manufacturing various bulletproof clothes. The clothes made of the fabric have better bulletproof performance and light weight of 30 percent.

The preparation method provided by the invention has the advantages of simple and easy operation process, low cost and high economic benefit, and is suitable for large-scale industrial production.

Detailed Description

The following further describes embodiments of the present invention.

The invention provides a preparation method of a high-strength bulletproof fabric, which comprises the following steps:

step 1, weighing raw materials in proportion; step 2, preparing a fiber unidirectional cloth resin layer; step 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying; step 4, covering the surface of the metal coating with a high-strength impact-resistant material; step 5, covering a buffer layer on the high-strength impact-resistant material; and 6, drying, heating and shaping to obtain the high-strength bulletproof fabric.

The fiber unidirectional cloth resin layer is a multilayer structure formed by compounding a plurality of unidirectional cloth, and the number of layers ranges from 10 to 15. Each layer is provided with a piece of unidirectional cloth, and the fiber unidirectional cloth resin layer is compounded by coating resin outside the multilayer structure. Preferably a plurality of unidirectional cloth resin layers.

The unidirectional cloth adopts one or more of aramid fiber, high molecular weight polyethylene, high molecular weight polypropylene, aromatic polyamide and PBO (poly-p-phenylene benzobisoxazole) fiber.

The metal coating is an impact-resistant coating and is coated on the surface of the fiber unidirectional cloth resin layer, and the thickness of the coating is 300-400 nm.

The metal coating comprises, by weight, 35-40 parts of strontium carbonate, 40-49 parts of aluminum oxide, 2.5-3.1 parts of europium oxide, 2.5-3.1 parts of boric acid, 0.1-0.2 part of ammonium salt and 2.5-2.8 parts of dysprosium oxide.

The high-strength impact-resistant material is a high-molecular polymer material, adopts a polyurea high-molecular material, has the VOC (volatile organic compounds) content of 50-150g/L and the thickness of 2-4 mm.

Polyurea is an elastomeric material formed by the reaction of an isocyanate component and an amino compound component. The polyurea is divided into pure polyurea and semi-polyurea, the performances of the pure polyurea and the semi-polyurea are different, and the most basic characteristics of the polyurea are corrosion resistance, water resistance, wear resistance and the like.

The buffer layer is made of any one or more of high molecular polymer D3O, EVA (ethylene-vinyl acetate copolymer) silica gel and TPU (Thermoplastic polyurethane elastomer rubber) elastic foam, and the thickness is 2-4 mm.

D3O belongs to the class of expandable foams, which are impact resistant unitary materials consisting of "smart molecules" (viscose and a polymer) that exhibit two mechanically similar states (hard and soft) under different gravitational impacts.

And 6, drying, heating to 130-150 ℃, and shaping for 3-5min to obtain the high-strength bulletproof fabric.

The high-strength bulletproof fabric prepared by the method is composed of four layers of structures, wherein the first layer from outside to inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer.

The equipment used in the present invention is known to those skilled in the art.

The invention also provides the high-strength bulletproof fabric prepared by the method.

The high-strength bulletproof fabric and the preparation method thereof provided by the invention are further described below by combining with the examples.

Example 1

A method of making a high strength ballistic resistant fabric comprising:

step 1, weighing the raw materials in proportion.

And 2, preparing a fiber unidirectional cloth resin layer.

The fiber unidirectional cloth resin layer is a multilayer structure formed by compounding a plurality of unidirectional cloth, and the number of layers ranges from 10 to 15.

The fiber adopted by the unidirectional cloth is aramid fiber.

And 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying.

The metal coating is an impact-resistant coating and is coated on the surface of the fiber unidirectional cloth resin layer, and the thickness of the coating is 300-400 nm.

The metal coating comprises, by weight, 35 parts of strontium carbonate, 40 parts of aluminum oxide, 2.5 parts of europium oxide, 2.5 parts of boric acid, 0.1 part of ammonium salt and 2.5 parts of dysprosium oxide.

And 4, covering the surface of the metal coating with a high-strength impact-resistant material.

The high-strength impact-resistant material is a high-molecular polymer material, adopts a polyurea high-molecular material, has the VOC content of 50-150g/L and the thickness of 2-4 mm.

And 5, covering a buffer layer on the high-strength impact-resistant material.

The buffer layer is made of high molecular polymer D3O and has a thickness of 2-4 mm.

And step 6, drying, heating to 130-150 ℃, and shaping for 3-5min to obtain the high-strength bulletproof fabric.

The high-strength bulletproof fabric prepared by the method is composed of four layers of structures, wherein the first layer from outside to inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer.

The embodiment also provides the high-strength bulletproof fabric prepared by the method.

Example 2

A method of making a high strength ballistic resistant fabric comprising:

step 1, weighing the raw materials in proportion.

And 2, preparing a fiber unidirectional cloth resin layer.

The fiber unidirectional cloth resin layer is a multilayer structure formed by compounding a plurality of unidirectional cloth, and the number of layers ranges from 10 to 15.

The unidirectional cloth adopts high molecular weight polyethylene and high molecular weight polypropylene fibers.

And 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying.

The metal coating is an impact-resistant coating and is coated on the surface of the fiber unidirectional cloth resin layer, and the thickness of the coating is 300-400 nm.

The metal coating comprises 36 parts by weight of strontium carbonate, 42 parts by weight of aluminum oxide, 2.6 parts by weight of europium oxide, 2.6 parts by weight of boric acid, 0.1 part by weight of ammonium salt and 2.6 parts by weight of dysprosium oxide.

And 4, covering the surface of the metal coating with a high-strength impact-resistant material.

The high-strength impact-resistant material is a high-molecular polymer material, adopts a polyurea high-molecular material, has the VOC content of 50-150g/L and the thickness of 2-4 mm.

And 5, covering a buffer layer on the high-strength impact-resistant material.

The buffer layer is made of EVA silica gel and has a thickness of 2-4 mm.

And step 6, drying, heating to 130-150 ℃, and shaping for 3-5min to obtain the high-strength bulletproof fabric.

The high-strength bulletproof fabric prepared by the method is composed of four layers of structures, wherein the first layer from outside to inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer.

The embodiment also provides the high-strength bulletproof fabric prepared by the method.

Example 3

A method of making a high strength ballistic resistant fabric comprising:

step 1, weighing the raw materials in proportion.

And 2, preparing a fiber unidirectional cloth resin layer.

The fiber unidirectional cloth resin layer is a multilayer structure formed by compounding a plurality of unidirectional cloth, and the number of layers ranges from 10 to 15.

The fiber adopted by the unidirectional cloth is aramid fiber.

And 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying.

The metal coating is an impact-resistant coating and is coated on the surface of the fiber unidirectional cloth resin layer, and the thickness of the coating is 300-400 nm.

The metal coating comprises, by weight, 37 parts of strontium carbonate, 45 parts of aluminum oxide, 2.8 parts of europium oxide, 2.8 parts of boric acid, 0.15 part of ammonium salt and 2.65 parts of dysprosium oxide.

And 4, covering the surface of the metal coating with a high-strength impact-resistant material.

The high-strength impact-resistant material is a high-molecular polymer material, adopts a polyurea high-molecular material, has the VOC content of 50-150g/L and the thickness of 2-4 mm.

And 5, covering a buffer layer on the high-strength impact-resistant material.

The buffer layer is made of TPU elastic foam, and the thickness of the buffer layer is 2-4 mm.

And step 6, drying, heating to 130-150 ℃, and shaping for 3-5min to obtain the high-strength bulletproof fabric.

The high-strength bulletproof fabric prepared by the method is composed of four layers of structures, wherein the first layer from outside to inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer.

The embodiment also provides the high-strength bulletproof fabric prepared by the method.

Example 4

A method of making a high strength ballistic resistant fabric comprising:

step 1, weighing the raw materials in proportion.

And 2, preparing a fiber unidirectional cloth resin layer.

The fiber unidirectional cloth resin layer is a multilayer structure formed by compounding a plurality of unidirectional cloth, and the number of layers ranges from 10 to 15.

The unidirectional cloth adopts PBO fiber.

And 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying.

The metal coating is an impact-resistant coating and is coated on the surface of the fiber unidirectional cloth resin layer, and the thickness of the coating is 300-400 nm.

The metal coating comprises, by weight, 38 parts of strontium carbonate, 47 parts of aluminum oxide, 3 parts of europium oxide, 3 parts of boric acid, 0.2 part of ammonium salt and 2.7 parts of dysprosium oxide.

And 4, covering the surface of the metal coating with a high-strength impact-resistant material.

The high-strength impact-resistant material is a high-molecular polymer material, adopts a polyurea high-molecular material, has the VOC content of 50-150g/L and the thickness of 2-4 mm.

And 5, covering a buffer layer on the high-strength impact-resistant material.

The buffer layer is made of any one of high molecular polymer D3O, EVA silica gel and TPU elastic foam, and the thickness of the buffer layer is 2-4 mm.

And step 6, drying, heating to 130-150 ℃, and shaping for 3-5min to obtain the high-strength bulletproof fabric.

The high-strength bulletproof fabric prepared by the method is composed of four layers of structures, wherein the first layer from outside to inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer.

The embodiment also provides the high-strength bulletproof fabric prepared by the method.

Example 5

A method of making a high strength ballistic resistant fabric comprising:

step 1, weighing the raw materials in proportion.

And 2, preparing a fiber unidirectional cloth resin layer.

The fiber unidirectional cloth resin layer is a multilayer structure formed by compounding a plurality of unidirectional cloth, and the number of layers ranges from 10 to 15.

The unidirectional cloth adopts any of aramid fiber, high molecular weight polyethylene, high molecular weight polypropylene, aramid fiber and PBO fiber.

And 3, coating a metal coating on the surface of the fiber unidirectional cloth resin layer, and drying.

The metal coating is an impact-resistant coating and is coated on the surface of the fiber unidirectional cloth resin layer, and the thickness of the coating is 300-400 nm.

The metal coating comprises, by weight, 40 parts of strontium carbonate, 49 parts of aluminum oxide, 3.1 parts of europium oxide, 3.1 parts of boric acid, 0.2 part of ammonium salt and 2.8 parts of dysprosium oxide.

And 4, covering the surface of the metal coating with a high-strength impact-resistant material.

The high-strength impact-resistant material is a high-molecular polymer material, adopts a polyurea high-molecular material, has the VOC content of 50-150g/L and the thickness of 2-4 mm.

And 5, covering a buffer layer on the high-strength impact-resistant material.

The buffer layer is made of any of high polymer D3O, EVA silica gel and TPU elastic foam, and the thickness of the buffer layer is 2-4 mm.

And step 6, drying, heating to 130-150 ℃, and shaping for 3-5min to obtain the high-strength bulletproof fabric.

The high-strength bulletproof fabric prepared by the method is composed of four layers of structures, wherein the first layer from outside to inside is a fiber unidirectional cloth resin layer, the second layer is a metal coating, the third layer is a high-strength impact-resistant material layer, and the fourth layer is a buffer layer.

The embodiment also provides the high-strength bulletproof fabric prepared by the method.

The fabric prepared by the embodiments of the invention is tested, and the result is as follows: by adopting the GJB 4300-2002 standard test, the bulletproof grade reaches IV, the initial speed of a 79-type 7.62 light submachine gun or a 51-type 7.62mm steel core projectile reaches 515m/s, the fragment-resisting performance reaches the 3-grade standard under the test, and the initial speed of the steel core projectile is more than or equal to 650 m/s.

The novel high-strength bulletproof fabric prepared by the preparation method of the high-strength bulletproof fabric comprises a fiber unidirectional cloth resin layer, a metal coating, a high-strength impact-resistant material and a buffer layer. The multifunctional high-strength fabric has the advantages of good flexibility, reduced weight and strong bulletproof capability, and can be used for manufacturing various high-strength bulletproof clothes. The clothes made of the multilayer fabric have better bulletproof performance and light weight of 30 percent.

While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.