Basalt fiber composite board for bulletproof plate

Abstract

The utility model relates to the field of bulletproof plates, in particular to a basalt fiber composite plate for a bulletproof plate, which comprises an outer mask, a bullet-meeting front plate, a composite plate, a bullet-meeting rear plate and a lining plate, the composite plate is made of basalt fibers, the bullet-meeting front plate and the bullet-meeting rear plate are respectively fixed on two sides of the composite plate, the outer mask is fixed on the surface of the bullet-meeting front plate, and the lining plate is fixed on the surface of the bullet-meeting front plate. The inner lining plate is fixed to the surface of the bullet meeting rear plate. The bulletproof plate has the effect of improving the protection capacity of the bulletproof plate.

Description

Technical Field

[0001] The present application relates to the field of bulletproof panels, and in particular to a basalt fiber composite panel for bulletproof panels. Background Art

[0002] Bulletproof plates are industrial products used in bulletproof armor, mostly made of silicon carbide ceramic. They are categorized into three types: metal, non-metallic, and composite. Metals include steel or titanium alloys, while non-metallic materials include resins, ceramics, and other materials. Currently, due to load requirements and material ballistic performance limitations, bulletproof plates offer significantly insufficient protection against close-range small arms fire and penetration by explosive fragments, failing to meet current counterterrorism and emergency response needs.

[0003] Basalt fiber is a continuous fiber produced by melting basalt at 1450°C to 1500°C and then drawing it through a platinum-rhodium alloy drawing plate at high speed. It exhibits excellent properties such as high strength, high-temperature resistance, oxidation resistance, radiation resistance, thermal insulation, sound insulation, excellent filterability, and high compression and shear strength. This fiber material not only exhibits excellent mechanical properties but also exhibits acid and alkali corrosion resistance far exceeding that of E-glass and aramid fibers. Basalt fiber has a wide operating temperature range, from -260°C to 880°C, and has low thermal conductivity and excellent flame retardancy. Furthermore, basalt fiber exhibits excellent chemical stability, containing components such as K₂O, MgO, and TiO₂, which contribute to its chemical resistance and water resistance. Due to its excellent mechanical properties and wide range of applications, basalt fiber is considered an ideal reinforcement material, meeting the demand for structural materials in defense construction, transportation, construction, petrochemicals, environmental protection, electronics, aviation, and aerospace, playing a significant role in promoting national defense construction, major projects, and industrial restructuring.

[0004] Therefore, in order to improve the protective capability of bulletproof panels and meet the needs of current anti-terrorism and conflict events, we use basalt fiber composite panels as composite materials to prepare a new basalt fiber composite panel for bulletproof panels. Utility Model Content

[0005] In order to improve the protective capability of bulletproof panels, the present application provides a basalt fiber composite panel for bulletproof panels.

[0006] The basalt fiber composite board for bulletproof panels provided in this application adopts the following technical solutions:

[0007] A basalt fiber composite panel for bulletproof panels includes an outer panel, a front panel, a composite material panel, a rear panel and an inner lining panel. The composite material panel is made of basalt fiber. The front panel and the rear panel are respectively fixed on both sides of the composite material panel. The outer panel is fixed to the surface of the front panel, and the inner lining panel is fixed to the surface of the rear panel.

[0008] By adopting the above technical solution and using basalt fiber to make a composite material plate, the composite material plate is used as the main body of the bulletproof plate. Basalt fiber is a continuous fiber made by melting basalt stone at 1450℃~1500℃ and then drawing it at high speed through a platinum-rhodium alloy drawing plate. It has excellent properties such as high strength, high temperature resistance, oxidation resistance, radiation resistance, thermal insulation and sound insulation, good filterability, high compression resistance and shear strength, etc., which can enhance the protective capability of the bulletproof plate.

[0009] Optionally, the surface of the outer panel is coated with a polyurea coating.

[0010] By adopting the above technical solution, a polyurea coating is applied on the outer cover to protect the bulletproof plate. The polyurea coating makes the surface of the bulletproof plate have better wear resistance and corrosion resistance, thereby improving the protective performance of the bulletproof plate in harsh environments.

[0011] Optionally, the front and rear panels are made of fiberglass.

[0012] By adopting the above technical solution, the fiberglass plate has the characteristics of lightness, high strength and corrosion resistance, and can reduce the impact force of bullet shooting.

[0013] Optionally, the lining plate is made of Kevlar fiber.

[0014] By adopting the above technical solution, Kevlar fiber is an aramid composite material with good thermal stability, fire resistance and insulation, which can achieve the effect of protecting users.

[0015] Optionally, the thickness of the front plate for receiving bullets is 0.5mm-1mm, the thickness of the rear plate for receiving bullets is 0.5mm-1mm, and the thickness of the composite material plate is 12mm-18mm.

[0016] By adopting the above technical solution and setting the thickness of the front and rear bullet-proof plates to within 1 mm, the overall thickness of the bullet-proof plate can be reduced, so that the basalt fiber accounts for a larger proportion in the bullet-proof plate, and the bullet-proof plate has better overall strength when the thickness is low.

[0017] Optionally, an adhesive interlayer is provided between the outer cover plate and the front plate for receiving the projectile, and the adhesive interlayer adhesively fixes the outer cover plate and the front plate for receiving the projectile.

[0018] By adopting the above technical solution, an adhesive interlayer is provided between the outer cover and the front plate to bond the outer cover and the front plate. When the bulletproof plate is subjected to an impact, the outer cover and the front plate are easily damaged. The adhesive interlayer can stick to the damaged fragments, thereby reducing the chance of the fragments flying out and scratching the user.

[0019] Optionally, the bonding interlayer includes an elastic resin, which is used for elastic deformation and absorption of mechanical impact.

[0020] By adopting the above technical solution, by arranging the elastic resin between the outer cover and the front plate, the elastic resin can be deformed and absorb the impact. When the outer cover is damaged, the elastic resin can be deformed and remain adhered to the outer cover and the front plate, thereby reducing the probability of generating fragments after the outer cover is damaged.

[0021] Optionally, a wire mesh layer is provided in the elastic resin, the wire mesh layer is a mesh structure, and the liquid resin submerges the wire mesh layer and solidifies to form the elastic resin.

[0022] By adopting the above technical solution, a wire mesh layer is provided in the elastic resin, so that the wire mesh layer can improve the strength of the elastic resin. When a bullet impacts the bulletproof plate and destroys the outer plate, the bullet can destroy the adhesive interlayer. The kinetic energy of the bullet is reduced in the process of destroying the wire mesh layer, thereby reducing the chance of the bullet being refracted on the bulletproof plate and continuing to fly.

[0023] In summary, the beneficial technical effects of this application are:

[0024] 1. By using basalt fiber to make composite material plates, composite material plates are used as the main body of bulletproof plates. Basalt fiber is a continuous fiber made by melting basalt stone at 1450℃~1500℃ and then drawing it at high speed through a platinum-rhodium alloy drawing plate. It has excellent properties such as high strength, high temperature resistance, oxidation resistance, radiation resistance, thermal insulation and sound insulation, good filterability, high compression and shear strength, etc., which can enhance the protective capability of bulletproof plates;

[0025] 2. By applying a polyurea coating on the outer cover, the polyurea coating plays a protective role on the bulletproof plate. The polyurea coating makes the surface of the bulletproof plate have better wear resistance and corrosion resistance, thereby improving the protection performance of the bulletproof plate in harsh environments;

[0026] 3. By setting a wire mesh layer in the elastic resin, the wire mesh layer can improve the strength of the elastic resin. When a bullet impacts the bulletproof plate and destroys the outer plate, the bullet can destroy the adhesive interlayer. The kinetic energy of the bullet is reduced in the process of destroying the wire mesh layer, thereby reducing the chance of the bullet being refracted on the bulletproof plate and continuing to fly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the present application.

[0029] Figure 3 Schematic diagram of the position of the bonding interlayer in an embodiment of the present application.

[0030] Figure 4 Schematic diagram of the structure of the bonding interlayer of an embodiment of the present application.

[0031] Figure numerals: 1. Outer panel; 2. Front panel for receiving bullets; 3. Composite material panel; 4. Rear panel for receiving bullets; 5. Inner lining panel; 6. Adhesive interlayer; 61. Elastic resin; 62. Wire mesh layer. DETAILED DESCRIPTION

[0032] The present application is further described in detail below with reference to the accompanying drawings.

[0033] The present application discloses a basalt fiber composite board for bulletproof panels, referring to Figure 1 and Figure 2 , including an outer panel 1, a front panel 2 for projectile protection, a composite material panel 3, a rear panel 4 for projectile protection and an inner lining panel 5. The composite material panel 3 is made of a lightweight and high-strength basalt fiber composite panel. The front panel 2 for projectile protection and the rear panel 4 for projectile protection are respectively bonded and fixed to the two side surfaces of the composite material panel 3. The front panel 2 for projectile protection and the rear panel 4 for projectile protection are both made of fiberglass reinforced plastic material. The outer panel 1 is bonded and fixed to the surface of the front panel 2 for projectile protection, and the inner lining panel 5 is bonded and fixed to the rear panel 4 for projectile protection.

[0034] Reference Figure 1 The outer panel 1 is a sheet material provided with a polyurea coating. In other embodiments, a polyurea coating can be provided on the surface of the front plate 2 to form an outer skin with a thickness of 0.8 mm. The polyurea coating imparts excellent wear resistance and corrosion resistance to the surface of the bulletproof plate, thereby enhancing the protective performance of the bulletproof plate in harsh environments.

[0035] Reference Figure 1The front and rear panels 2 and 4 are 0.5mm thick. They are made of fiberglass, which is lightweight, strong, and corrosion-resistant, reducing the impact of bullets. The composite panel 3 is made of basalt fiber and is 15mm thick. Basalt fiber is a continuous fiber formed by melting basalt at 1450-1500°C and then drawing it through a platinum-rhodium alloy drawing plate at high speed. It is composed of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and titanium dioxide. Basalt fiber has high strength and excellent properties such as electrical insulation, corrosion resistance, and high-temperature resistance. This fiber material not only exhibits excellent mechanical properties, but also has acid and alkali corrosion resistance far exceeding that of E-glass fiber and aramid fiber. Basalt fiber has a wide operating temperature range, from -260°C to 880°C, and has a low thermal conductivity coefficient and excellent flame retardancy. In addition, basalt fiber also exhibits good chemical stability and contains components such as K2O, MgO and TiO2, which help improve the fiber's chemical corrosion resistance and waterproof properties.

[0036] Reference Figure 1 The inner lining plate 5 is made of Kevlar fiberboard, and the thickness of the inner lining plate 5 is 2.5 mm. Kevlar fiber is an aramid composite material with good thermal stability, fire resistance and insulation.

[0037] Reference Figure 3 and Figure 4 In other embodiments, an adhesive interlayer 6 is provided between the outer panel 1 and the front panel 2. One side of the adhesive interlayer 6 is bonded to the outer panel 1 and the other side is bonded to the front panel 2. The adhesive interlayer 6 comprises an elastic resin 61 and a wire mesh layer 62. The elastic resin 61 is made of an elastic resin material and is bonded between the outer panel 1 and the front panel 2. This enhances the overall elasticity of the bulletproof panel, thereby absorbing some of the kinetic energy. When the bulletproof panel resists an impact, the outer panel 1 and the front panel 2 may break. The elastic resin 61 deforms and maintains contact with the outer panel 1 and the front panel 2, reducing the risk of fragments from the outer panel 1 and the front panel 2 flying out at high speeds, thereby reducing the risk of injury to the user. The wire mesh layer 62 is made of a metal mesh or fiber mesh with excellent structural strength. The liquid elastic resin 61 submerges the wire mesh layer 62 and solidifies to form the adhesive interlayer 6. The wire mesh layer 62 is used to improve the structural strength of the adhesive interlayer 6. When the shrapnel impacts the outer panel 1, the shrapnel can destroy the outer panel 1 and the adhesive interlayer 6, so that the shrapnel hits the wire mesh layer 62. When the shrapnel destroys the wire mesh layer 62, the kinetic energy is reduced, which can reduce the chance of the shrapnel being refracted on the bulletproof plate and injuring the user.

[0038] Example 1

[0039] This embodiment provides a basalt fiber, which is prepared by the following steps:

[0040] 1) The basalt is screened to remove impurities, then placed in an oven at 110° C. for 18 hours, taken out and cooled to room temperature, and then crushed to 5-10 mm by a crusher to obtain basalt particles.

[0041] 2) The mixed powder obtained above was smelted at 1300° C. until completely melted, and then drawn through a platinum-rhodium alloy bushing to obtain a fiber precursor.

[0042] 3) zinc acetate, hexadecyltrimethylammonium bromide, sodium hydroxide, ethylenediamine and ethanol are uniformly mixed and subjected to a hydrothermal reaction to obtain a zinc oxide precursor solution.

[0043] 4) The fiber precursor prepared in step 2) is mixed with the zinc oxide precursor solution, and then subjected to a hydrothermal reaction, thereby modifying the basalt fiber and obtaining modified basalt fiber.

[0044] Example 2

[0045] This embodiment provides a modified basalt fiber, and the preparation method thereof differs from that of Example 1 only in that:

[0046] In this embodiment, the drying temperature is 100°C and the drying time is 16 hours;

[0047] The ratio of the zinc salt, hexadecyltrimethylammonium bromide, sodium hydroxide, ethylenediamine and alcohol solvent is 1g:1.5g:0.5g:0.05mL:30mL;

[0048] Example 3

[0049] This embodiment provides a modified basalt fiber, and the preparation method thereof differs from that of Example 1 only in that:

[0050] In this embodiment, the drying temperature is 120° C. and the drying time is 20 hours.

[0051] Example 4

[0052] This embodiment provides a modified basalt fiber asphalt material, and the preparation method thereof is as follows:

[0053] After the modified basalt fiber obtained in Example 1 was made into chopped fibers, the obtained chopped fibers were evenly mixed with asphalt at a mass ratio of 1:100 to obtain a modified basalt fiber asphalt material.

[0054] Example 5

[0055] This embodiment provides a modified basalt fiber asphalt material, and its preparation method differs from that of Example 4 only in that:

[0056] The modified basalt fiber obtained in Example 2 was made into chopped fibers.

[0057] Example 6

[0058] This embodiment provides a modified basalt fiber asphalt material, and its preparation method differs from that of Example 4 only in that:

[0059] The modified basalt fiber obtained in Example 3 was made into chopped fibers.

[0060] Experimental part

[0061] (1) Structural performance test of basalt fiber

[0062] The present invention takes the modified basalt fibers of Examples 1-3 as examples, and tests their structural properties respectively. The test results are shown in Table 1.

[0063] Table 1 Structural properties of basalt fiber

[0064] Density g / cm3 Porosity% Diameter μm Example 1 0.7 81 15～22 Example 2 1.0 60 15～24 Example 3 1.4 52 17～24 Example 4 1.8 50 18～23 Example 5 1.7 52 19～25 Example 6 1.4 55 18～24

[0065] As can be seen from Table 1, by comparing the structural properties of Example 1, the modified basalt fiber prepared by the present invention has low density and high porosity, and has a porous structure, which shows that the composition of the oxide particles and whether they are added or not play a very important role in the structure of the basalt fiber, and whether it is coated with nano-zinc oxide or not also has an important influence on its structure.

[0066] Furthermore, it can be seen from the structural performance of Examples 1 to 3 that the parameters of each step have an impact on its structural performance, indicating that the improvement of the basalt fiber material structure achieved by the present invention is not based on a single component or processing step, but is achieved through the synergistic effect of various components and steps performed in sequence.

[0067] The implementation principle of the embodiment of the present application is: by using basalt fiber to make a composite material plate 3, and bonding fiberglass plates on both sides of the composite material plate 3, the overall strength of the bulletproof plate is improved. The composite material plate 3 has excellent properties such as high strength, high temperature resistance, acid and alkali resistance, and light weight, and can reduce the force generated by bullet impact. The bulletproof plate is light in weight, can be quickly assembled and unassembled, and is easy to use.

[0068] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A basalt fiber composite board for bulletproof panels, characterized by: The invention comprises an outer covering plate (1), a front plate for receiving missiles (2), a composite material plate (3), a rear plate for receiving missiles (4) and an inner lining plate (5), wherein the composite material plate (3) is made of basalt fiber, the front plate for receiving missiles (2) and the rear plate for receiving missiles (4) are respectively fixed on both sides of the composite material plate (3), the outer covering plate (1) is fixed on the surface of the front plate for receiving missiles (2), and the inner lining plate (5) is fixed on the surface of the rear plate for receiving missiles (4).

2. The basalt fiber composite board for bulletproof panels according to claim 1, characterized in that: The surface of the outer covering plate (1) is coated with a polyurea coating.

3. The basalt fiber composite board for bulletproof panels according to claim 1, characterized in that: The bullet-receiving front plate (2) and the bullet-receiving rear plate (4) are made of glass fiber reinforced plastics.

4. The basalt fiber composite board for bulletproof panels according to claim 1, characterized in that: The inner lining plate (5) is made of Kevlar fiber.

5. The basalt fiber composite board for bulletproof panels according to claim 1, characterized in that: The thickness of the front plate (2) for receiving the projectile is 0.5 mm to 1 mm, the thickness of the rear plate (4) for receiving the projectile is 0.5 mm to 1 mm, and the thickness of the composite material plate (3) is 12 mm to 18 mm.

6. The basalt fiber composite board for bulletproof panels according to claim 1, characterized in that: An adhesive interlayer (6) is provided between the outer covering plate (1) and the projectile-receiving front plate (2), and the adhesive interlayer (6) adhesively fixes the outer covering plate (1) and the projectile-receiving front plate (2).

7. The basalt fiber composite board for bulletproof panels according to claim 6, characterized in that: The bonding interlayer (6) includes an elastic resin (61).

8. The basalt fiber composite board for bulletproof panels according to claim 7, characterized in that: A wire mesh layer (62) is provided in the elastic resin (61), and the wire mesh layer (62) is a mesh structure. The liquid resin submerges the wire mesh layer (62) and solidifies to form the elastic resin (61).

Images