Soft composite bulletproof structure

Abstract

The utility model discloses a soft composite bulletproof structure, which comprises a liquid crystal polymer non-woven fabric layer, a buffer layer and a waterproof coating, and is characterized in that the lower surface of the liquid crystal polymer non-woven fabric layer is fixedly connected with an adhesive layer, and the lower surface of the adhesive layer is connected with an aramid fiber non-woven fabric layer; the lower surface of the aramid fiber non-woven fabric layer is connected with an ultra-high molecular weight polyethylene non-woven fabric layer, the lower surface of the ultra-high molecular weight polyethylene non-woven fabric layer is connected with a buffer layer, the lower surface of the buffer layer is sprayed with a waterproof coating, and the upper surface of the liquid crystal polymer non-woven fabric layer is sprayed with a waterproof coating. The lower surface of the aramid fiber non-woven cloth layer is fixedly connected with an adhesive layer, and the lower surface of the ultra-high molecular weight polyethylene non-woven cloth layer is fixedly connected with an adhesive layer. According to the soft composite bulletproof structure, the bulletproof effect can be improved, water can be prevented, the weight is prevented from being increased due to water inflow, and the weight of the soft composite bulletproof structure can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of protective equipment technology, specifically a soft composite bulletproof structure. Background Technology

[0002] Soft bulletproof materials - The main high-performance fibers used in the industrialized, large-scale production of soft bulletproof materials include para-aramid fiber (aramid fiber), ultra-high molecular weight polyethylene fiber, and carbon fiber. The first two are widely used in the bulletproof field. The specific strength and specific modulus of aramid fiber are 10 times that of steel, while the specific strength of ultra-high molecular weight polyethylene fiber is about 1.5 times higher than that of aramid fiber.

[0003] Chinese utility model patent CN220841759U discloses a high-performance soft composite bulletproof structure, relating to the technical field of protective equipment. It includes a bulletproof layer and a buffer layer. The bulletproof layer is disposed on the outside of the bulletproof structure, and the buffer layer is disposed on the inside of the bulletproof structure and bonded to the bulletproof layer. The bulletproof layer comprises a liquid crystal polymer nonwoven fabric layer, an aramid nonwoven fabric layer, and an ultra-high molecular weight polyethylene nonwoven fabric layer. By layering high-strength, high-modulus, low-water-absorption, and low-temperature-resistant liquid crystal polymer nonwoven fabric with high-strength, high-modulus, high-temperature-resistant aramid nonwoven fabric and low-specific-gravity ultra-high molecular weight polyethylene nonwoven fabric, the different properties of the materials are utilized to significantly attenuate the stress wave generated when a bullet impacts the bulletproof vest. More importantly, this bulletproof vest maintains good strength retention and bulletproof effect even in harsh environments, and is lightweight and highly flexible.

[0004] Because existing technologies suffer from poor bulletproof performance due to material limitations, and are not waterproof when in contact with water under special circumstances, and because the wearer needs to carry the soft composite bulletproof structure while moving, which makes it difficult to reduce the overall weight, we propose a soft composite bulletproof structure to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a soft composite bulletproof structure to solve the problems in the prior art mentioned above, such as poor bulletproof effect due to material reasons, inconvenience in waterproofing when in contact with water under special circumstances, and the need for the wearer to carry the soft composite bulletproof structure on their body, which makes it inconvenient to reduce the overall weight.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a soft composite bulletproof structure, comprising a liquid crystal polymer nonwoven fabric layer, a buffer layer, and a waterproof coating, characterized in that: an adhesive layer is fixedly connected to the lower surface of the liquid crystal polymer nonwoven fabric layer, and an aramid nonwoven fabric layer is connected to the lower surface of the adhesive layer, and an ultra-high molecular weight polyethylene nonwoven fabric layer is connected to the lower surface of the aramid nonwoven fabric layer; a buffer layer is connected to the lower surface of the ultra-high molecular weight polyethylene nonwoven fabric layer, and a waterproof coating is sprayed onto the lower surface of the buffer layer.

[0007] Preferably, the upper surface of the liquid crystal polymer nonwoven fabric layer is coated with a waterproof coating.

[0008] Preferably, an adhesive layer is fixedly connected to the lower surface of the aramid nonwoven fabric layer.

[0009] Preferably, an adhesive layer is fixedly connected to the lower surface of the ultra-high molecular weight polyethylene nonwoven fabric layer.

[0010] Preferably, the specific strength of the ultra-high molecular weight polyethylene nonwoven fabric layer is about 1.5 times higher than that of the aramid nonwoven fabric layer.

[0011] Preferably, the main material of the buffer layer is expanded polystyrene or silicone.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the soft composite bulletproof structure can improve the bulletproof effect, is waterproof, prevent water ingress from increasing weight, and can reduce the weight of the soft composite bulletproof structure.

[0013] 1. The liquid crystal polymer nonwoven fabric layer, the aramid nonwoven fabric layer, and the ultra-high molecular weight polyethylene nonwoven fabric layer are fixedly connected by an adhesive layer. Through the stacking combination, the characteristics of the liquid crystal polymer nonwoven fabric layer, the aramid nonwoven fabric layer, and the ultra-high molecular weight polyethylene nonwoven fabric layer can be utilized to improve the bulletproof effect.

[0014] 2. A waterproof coating is sprayed on the upper surface of the liquid crystal polymer nonwoven fabric layer and the lower surface of the buffer layer. The main material of the waterproof coating is the sprayed fast-curing liquid rubber material, which can waterproof and prevent water from entering and increasing the weight.

[0015] 3. The ultra-high molecular weight polyethylene non-woven fabric layer has a low specific gravity. The material and structural design of the buffer layer make the buffer layer lightweight and flexible, which helps to reduce the overall weight and can reduce the weight of the soft composite bulletproof structure. Attached Figure Description

[0016] Figure 1 This is a frontal perspective view of the structure of this utility model;

[0017] Figure 2 This is an exploded perspective view of the overall structure of this utility model;

[0018] Figure 3 This is a side perspective view of the structure of this utility model;

[0019] Figure 4 This is a perspective exploded view of the liquid crystal polymer nonwoven fabric layer, aramid nonwoven fabric layer, ultra-high molecular weight polyethylene nonwoven fabric layer, and buffer layer of this utility model.

[0020] In the diagram: 1. Liquid crystal polymer nonwoven fabric layer; 2. Adhesive layer; 3. Aramid nonwoven fabric layer; 4. Ultra-high molecular weight polyethylene nonwoven fabric layer; 5. Buffer layer; 6. Waterproof coating. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figures 1-4 Existing soft composite bulletproof structures have poor bulletproof performance due to material limitations. To solve this technical problem, this embodiment discloses the following technical content;

[0023] The upper surface of the liquid crystal polymer nonwoven fabric layer 1 is coated with a waterproof coating 6. The lower surface of the liquid crystal polymer nonwoven fabric layer 1 is fixedly connected with an adhesive layer 2, and the lower surface of the adhesive layer 2 is connected with an aramid nonwoven fabric layer 3. The lower surface of the aramid nonwoven fabric layer 3 is fixedly connected with an adhesive layer 2, and the lower surface of the aramid nonwoven fabric layer 3 is connected with an ultra-high molecular weight polyethylene nonwoven fabric layer 4. The lower surface of the ultra-high molecular weight polyethylene nonwoven fabric layer 4 is fixedly connected with an adhesive layer 2. The specific strength of the ultra-high molecular weight polyethylene nonwoven fabric layer 4 is about 1.5 times higher than that of the aramid nonwoven fabric layer 3.

[0024] The liquid crystal polymer nonwoven fabric layer 1 has the characteristics of high strength and high modulus, low water absorption and low temperature resistance, the aramid nonwoven fabric layer 3 has high strength and high modulus and high temperature resistance, and there is also an ultra-high molecular weight polyethylene nonwoven fabric layer 4. The above materials are fixedly connected together by the adhesive layer 2. The materials and characteristics of these materials increase the bulletproof effect of the soft composite bulletproof structure.

[0025] Example 2: Existing soft composite bulletproof structures, when used in special circumstances, are not waterproof when in contact with water. Therefore, this example uses the following technical solution, such as... Figures 1-4 As shown;

[0026] The main material of the buffer layer 5 is foamed styrene or silicone, and the lower surface of the buffer layer 5 is coated with a waterproof coating 6.

[0027] The upper surface of the liquid crystal polymer nonwoven fabric layer 1 and the lower surface of the buffer layer 5 are both coated with a waterproof coating 6. The main material of the waterproof coating 6 is a sprayed fast-curing liquid rubber material, which makes the inside and outside of the soft composite bulletproof structure waterproof.

[0028] Example 3: Existing soft composite bulletproof structures require the wearer to carry them while moving, which is inconvenient for reducing overall weight. Therefore, this example uses the following technical solution, such as... Figures 1-4 As shown;

[0029] A buffer layer 5 is connected to the lower surface of the ultra-high molecular weight polyethylene nonwoven fabric layer 4;

[0030] The ultra-high molecular weight polyethylene nonwoven fabric layer 4 has a low specific gravity, which helps to reduce the overall weight. Due to the material and structural design of the cushioning layer 5, the cushioning layer 5 has the characteristics of being lightweight and having good flexibility. The use of these two materials can reduce the overall weight compared to other materials.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A soft composite bulletproof structure, comprising a liquid crystal polymer nonwoven fabric layer (1), a cushioning layer (5), and a waterproof coating (6), characterized in that: The lower surface of the liquid crystal polymer nonwoven fabric layer (1) is fixedly connected to an adhesive layer (2), and the lower surface of the adhesive layer (2) is connected to an aramid nonwoven fabric layer (3), and the lower surface of the aramid nonwoven fabric layer (3) is connected to an ultra-high molecular weight polyethylene nonwoven fabric layer (4). The lower surface of the ultra-high molecular weight polyethylene nonwoven fabric layer (4) is connected to a buffer layer (5), and the lower surface of the buffer layer (5) is sprayed with a waterproof coating (6).

2. The soft composite bulletproof structure according to claim 1, characterized in that: The upper surface of the liquid crystal polymer nonwoven fabric layer (1) is coated with a waterproof coating (6).

3. The soft composite bulletproof structure according to claim 1, characterized in that: An adhesive layer (2) is fixedly connected to the lower surface of the aramid nonwoven fabric layer (3).

4. The soft composite bulletproof structure according to claim 1, characterized in that: An adhesive layer (2) is fixedly connected to the lower surface of the ultra-high molecular weight polyethylene nonwoven fabric layer (4).

5. The soft composite bulletproof structure according to claim 1, characterized in that: The specific strength of the ultra-high molecular weight polyethylene nonwoven fabric layer (4) is about 1.5 times higher than that of the aramid nonwoven fabric layer (3).

6. The soft composite bulletproof structure according to claim 1, characterized in that: The buffer layer (5) is mainly composed of expanded polystyrene or silicone.

Images