Basalt fiber composite bulletproof plate based on multi-dimensional stereo structure and preparation method of basalt fiber composite bulletproof plate

Abstract

The invention relates to the technical field of bulletproof plates, in particular to a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure and a preparation method of the basalt fiber composite bulletproof plate based on the multi-dimensional three-dimensional structure, and the preparation method comprises the following steps of S1, preform weaving, S2, preform pretreatment and S3, curing forming treatment to prepare the basalt fiber composite bulletproof plate based on the multi-dimensional three-dimensional structure. Through multi-step functional treatment of the yarn material, the interface bonding strength of the fiber and a resin matrix is improved, in the preparation process of the yarn material, the continuous basalt fiber is firstly infiltrated by the prepared first treatment liquid, so that the surface of the continuous basalt fiber is activated, a reactive group is introduced, and then the continuous basalt fiber is soaked in the second treatment liquid; according to the present invention, the carbon nano-tubes are effectively attached to the surfaces of the fibers through the carbon nano-tubes, and finally the pre-mixing material composed of the epoxy resin E51 and the polyether amine D230 system is used to coat and cure, such that the chemical compatibility and the mechanical interlocking effect of the fibers and the subsequent impregnating resin are improved, and the firm interface basis is provided for the bulletproof plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bulletproof board, in particular to a basalt fiber composite bulletproof board based on multi-dimensional three-dimensional structure and a preparation method thereof. BACKGROUND

[0002] Fiber bulletproof board is mainly used in military and special protection fields such as human body protection, vehicle armor, aerospace, etc. It is made of high-performance organic fiber (such as aramid fiber, ultra-high molecular weight polyethylene) two-dimensional fabric or weftless cloth, which is stacked and then impregnated and cured by resin.

[0003] The interface bonding force between the fiber reinforcement and the resin matrix in the existing fiber composite bulletproof board is weak, which causes the stress to be unable to be effectively transmitted between the fiber and the resin when the material is impacted, and easily causes interface failure, resulting in poor performance of the composite bulletproof board. Based on this, the present application provides a basalt fiber composite bulletproof board based on multi-dimensional three-dimensional structure and a preparation method thereof. SUMMARY

[0004] The present application aims to provide a basalt fiber composite bulletproof board based on multi-dimensional three-dimensional structure and a preparation method thereof to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a preparation method of a basalt fiber composite bulletproof board based on multi-dimensional three-dimensional structure, comprising the following steps: S1: Preform braiding, yarn material is sent into the braiding machine for braiding treatment, and the first preform, the second preform and the third preform are obtained after braiding treatment; S2: Preform pretreatment, the first preform, the second preform and the third preform are pretreated; S3: Solidification forming treatment, the first preform, the second preform and the third preform after pretreatment are heat-pressed and cured to obtain a basalt fiber composite bulletproof board based on multi-dimensional three-dimensional structure.

[0006] Preferably, the yarn material is prepared by the following method: continuous basalt fiber is immersed in a first treatment liquid for 40-60 min, then a second treatment liquid is added and soaked for 2-3 h, the soaked continuous basalt fiber is taken out and sent into an oven, the oven is kept at 80-100 DEG C for 1-2 h, then kept at 120-140 DEG C for 2-4 h to obtain a preliminary material, the preliminary material is immersed in a premix, and after taking out, it is placed at room temperature for 24 h, then heated at 75-80 DEG C for 2-4 h to obtain the yarn material.

[0007] Preferably, the mass of the second treatment liquid is 10-15% of the mass of the first treatment liquid.

[0008] Preferably, the first treatment liquid is prepared by mixing water-based polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water, and the mass ratio of water-based polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water is 10:3-4:0.5-0.7:0.1-0.2:4-5.

[0009] Preferably, the second treatment liquid is prepared by mixing hydroxylated multi-walled carbon nanotubes and deionized water, and then performing ultrasonic dispersion treatment, and the addition concentration of hydroxylated multi-walled carbon nanotubes is 0.1-0.5wt%.

[0010] Preferably, the premix is prepared by mixing epoxy resin E51 and polyether amine D230, and the mass ratio of epoxy resin E51 and polyether amine D230 is 100:30-35.

[0011] Preferably, the weaving treatment method of the first preform is as follows: the warp density is 6-8 threads / cm, the weft density is 6-8 threads / cm, the binder warp yarn is selected from at least one of aramid fiber and basalt fiber, and the weaving angle is set to 20°. The weaving treatment method of the second preform is as follows: the warp density is 4-6 threads / cm, the weft density is 4-6 threads / cm, and the weaving angle gradually changes from 20° to 40°. The weaving treatment method of the third preform is as follows: the warp density is 3-5 threads / cm, the weft density is 3-5 threads / cm, at least one weft yarn of UHMWPE or Kevlar is introduced, and the weaving angle is 50°.

[0012] Preferably, the preform treatment method is as follows: the first preform, the second preform and the third preform are immersed in an impregnation liquid, the immersion temperature is 40-50℃, the immersion time is 40-60min, after completion of the immersion, the preforms are placed in a vacuum bag, the vacuum value is-0.095MPa, and the vacuum is maintained for 20-40min, and then the preforms are sent into an oven for drying treatment at 80-100℃ for 1-2h, wherein the impregnation liquid is prepared by mixing bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole, and the mass ratio of bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole is 100:10-15:1-3.

[0013] Preferably, the method of the solidification forming process is: sequentially stacking the first preform, the second preform and the third preform which have completed pretreatment in a hot-pressing mold, applying pressure to 3-5 MPa, heating at a heating rate of 2-5 ℃ / min to 80-100 ℃, keeping temperature and pressure for 20-40 min, then heating at a heating rate of 1-2 ℃ / min to 130-150 ℃, increasing the pressure to 8-12 MPa, keeping temperature and pressure for 2-4 h, taking out after cooling to room temperature, performing trimming and polishing treatment, to obtain a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure.

[0014] Compared with the prior art, the beneficial effects of the present application are: 1、In the present application, the interfacial bonding strength of the fiber and the resin matrix is improved through multi-step functionalization treatment of the yarn material. During the preparation process of the yarn material, the continuous basalt fiber is first infiltrated with the prepared first treatment liquid, so that the surface of the fiber is activated and a reactive group is introduced. Then, the fiber is soaked in the second treatment liquid, so that the carbon nanotubes are effectively attached to the surface of the fiber. Finally, the fiber is coated and cured by the premix composed of epoxy resin E51 and polyetheramine D230 system, so that a multi-level interface structure of "polymer coating-nano reinforced layer-resin base layer" is constructed on the surface of the fiber. The chemical compatibility and mechanical interlocking effect of the fiber and the subsequent impregnated resin are greatly improved, which provides a solid interface foundation for the bulletproof plate and greatly improves the performance of the composite bulletproof plate.

[0015] 2、In the present application, the energy absorption and stress transmission path of the bulletproof plate are optimized by setting a multi-layer preform structure with different weaving parameters and weaving angles. The first preform (warp density 6-8 roots / cm, weft density 6-8 roots / cm, weaving angle 20°) is used as the main bullet layer, the tight weaving structure and high-strength carbon fiber binder warp yarn can effectively resist the initial penetration of the bullet head, the second preform (weaving angle gradually changes from 20° to 40°) is used as the transition layer, the gradual change of the weaving angle realizes the smooth transmission and diffusion of stress, and the third preform with a weaving angle of 50° is used as the backing layer. The high toughness and large-angle weaving structure of UHMWPE are used to further absorb the remaining energy and suppress the backside collapse. The three-layer structure works cooperatively to realize the step-by-step dissipation of impact energy, and significantly improves the multi-hit bullet resistance and overall protection performance of the bulletproof plate.

[0016] 3. In this invention, the impregnation liquid is mainly composed of bisphenol F type epoxy resin. Its multifunctional structure can undergo co-crosslinking reaction with the epoxy resin E51 and polyetheramine D230 system in the premix of yarn surface during subsequent hot pressing and curing to form a dense and strong interpenetrating network. The carboxyl-terminated liquid nitrile rubber is used as a toughening agent to effectively improve the interlaminar toughness and anti-delamination ability of the composite material. 2-ethyl-4-methylimidazolium is used as an accelerator to ensure the smooth progress of the pre-curing reaction in the pretreatment stage. This system enables the pretreatment to not only complete the impregnation of the preform, but also achieve the interface enhancement effect through active collaboration between material design and yarn treatment steps, providing the bulletproof plate with excellent interlaminar performance and impact resistance. Attached Figure Description

[0017] Figure 1 The flowchart of the present invention provides a method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that the raw materials used in the following embodiments are all commercially available.

[0020] Example 1: A method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure includes the following steps: S1: Preform weaving, the yarn material is fed into the weaving machine for weaving, and the first preform, the second preform and the third preform are obtained after the weaving process; S2: Prefabricated body pretreatment, pretreatment of the first prefabricated body, the second prefabricated body and the third prefabricated body; S3: Curing and molding process, hot pressing and curing the first, second and third preforms after pretreatment to obtain a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure.

[0021] The yarn material is prepared by the following method: continuous basalt fibers are immersed in a first treatment solution for 40 minutes, then a second treatment solution is added and the fibers are immersed for 23 hours. The immersed continuous basalt fibers are then taken out and placed in an oven. The oven is kept at 80°C for 1 hour and then at 120°C for 2 hours to obtain a pre-mixed material. The pre-mixed material is then immersed in a premixed material, taken out and left to stand at room temperature for 24 hours, and then heated at 75°C for 2 hours to obtain the yarn material.

[0022] The second treatment liquid has a mass of 10% of the mass of the first treatment liquid.

[0023] The first treatment liquid is prepared by mixing waterborne polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water, and the mass ratio of the waterborne polyurethane, the epoxy resin emulsion, the KH560, the polyethylene glycol and the deionized water is 10:3:0.5:0.1:4.

[0024] The second treatment liquid is prepared by mixing hydroxylated multi-walled carbon nanotubes and deionized water, and the addition concentration of the hydroxylated multi-walled carbon nanotubes is 0.1wt%.

[0025] The premix is prepared by mixing epoxy resin E51 and polyether amine D230, and the mass ratio of the epoxy resin E51 and the polyether amine D230 is 100:30.

[0026] The weaving treatment method of the first preform is as follows: the warp density is 6 roots / cm, the weft density is 6 roots / cm, the binder warp yarn is selected from aramid, and the weaving angle is set to 20°. The weaving treatment method of the second preform is as follows: the warp density is 4 roots / cm, the weft density is 4 roots / cm, and the weaving angle gradually changes from 20° to 40°. The weaving treatment method of the third preform is as follows: the warp density is 3 roots / cm, the weft density is 3 roots / cm, the UHMWPE weft yarn is introduced, and the weaving angle is 50°.

[0027] The preform treatment method is as follows: the first preform, the second preform and the third preform are immersed in the impregnation liquid, the immersion temperature is 40℃, the immersion time is 40min, after the immersion is completed, the preform is placed in a vacuum bag, the vacuum value is-0.095MPa, and the vacuum is maintained for 20min, then the preform is sent into an oven for drying treatment at 80℃ for 1h, and the preform pretreatment is completed, wherein the impregnation liquid is prepared by mixing bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole, and the mass ratio of the bisphenol F type epoxy resin, the carboxyl-terminated liquid nitrile rubber and the 2-ethyl-4-methyl imidazole is 100:10:1.

[0028] The curing and forming treatment method is as follows: the first preform, the second preform and the third preform which have completed the pretreatment are sequentially stacked in a hot-pressing mold, a pressure of 3MPa is applied, the temperature is raised to 80℃ at a temperature raising rate of 2℃ / min, the temperature is maintained and the pressure is maintained for 20min, then the temperature is raised to 130℃ at a temperature raising rate of 1℃ / min, the pressure is raised to 8MPa, the temperature is maintained and the pressure is maintained for 2h, the preform is taken out after being cooled to room temperature, and the trimming and polishing treatment is performed, so as to obtain the basalt fiber composite bulletproof plate based on the multi-dimensional three-dimensional structure.

[0029] Example 2: A preparation method of a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure, comprising the following steps: S1: Preform weaving, yarn material is sent into the weaving machine for weaving treatment, and a first preform, a second preform and a third preform are obtained after weaving treatment; S2: Preform pretreatment, the first preform, the second preform and the third preform are pretreated; S3: Solidification forming treatment, the first preform, the second preform and the third preform after pretreatment are heat-pressed and solidified to obtain the basalt fiber composite bulletproof plate based on the multi-dimensional three-dimensional structure.

[0030] Wherein, the yarn material is prepared by the following method: continuous basalt fiber is immersed in a first treatment liquid for 50 min, then a second treatment liquid is added and soaked for 2.5 h, the continuous basalt fiber after soaking is taken out and sent into an oven, the oven is kept at 90℃ for 1.5 h, then kept at 130℃ for 3 h to obtain a prepared material, the prepared material is immersed in a premix, taken out and placed at room temperature for 24 h, then heated at 78℃ for 3 h to prepare the yarn material.

[0031] Wherein, the mass of the second treatment liquid is 13% of the mass of the first treatment liquid.

[0032] Wherein, the first treatment liquid is prepared by mixing water-based polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water, and the mass ratio of water-based polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water is 10:3.5:0.6:0.15:4.5.

[0033] Wherein, the second treatment liquid is prepared by mixing and ultrasonic dispersion treatment of hydroxylated multi-walled carbon nanotubes and deionized water, and the addition concentration of hydroxylated multi-walled carbon nanotubes is 0.3wt%.

[0034] Wherein, the premix is prepared by mixing epoxy resin E51 and polyether amine D230, and the mass ratio of epoxy resin E51 and polyether amine D230 is 100:32.

[0035] Wherein, the weaving method of the first preform is: setting the warp density to 7 roots / cm, the weft density to 7 roots / cm, and the binding warp yarn to basalt fiber, and the weaving angle to 20°; The weaving method of the second preform is: setting the warp density to 5 roots / cm, the weft density to 5 roots / cm, and the weaving angle to gradually change from 20° to 40°; The weaving method of the third preform is: setting the warp density to 4 roots / cm, the weft density to 4 roots / cm, introducing UHMWPE weft yarn, and the weaving angle to 50°.

[0036] The method for preform treatment is: the first preform, the second preform and the third preform are immersed in the impregnation liquid, the impregnation temperature is 45 DEG C, the impregnation time is 50 min, after impregnation, it is put into a vacuum bag, the vacuum value is -0.095 MPa, and it is kept for 30 min, then it is sent into an oven, and dried at 90 DEG C for 1.5 h, to complete the preform pretreatment, wherein the impregnation liquid is prepared by mixing bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole, and the mass ratio of bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole is 100:12:2.

[0037] The method for curing and forming treatment is: the first preform, the second preform and the third preform after pretreatment are sequentially stacked in a hot press mold, a pressure of 4 MPa is applied, the temperature is raised to 90 DEG C at a temperature raising rate of 3 DEG C / min, and the temperature and pressure are kept for 30 min, then the temperature is raised to 140 DEG C at a temperature raising rate of 1.5 DEG C / min, the pressure is raised to 10 MPa, and the temperature and pressure are kept for 3 h, and after cooling to room temperature, it is taken out, and edge trimming and polishing treatment is carried out, to obtain the basalt fiber composite bulletproof plate based on multi-dimensional three-dimensional structure.

[0038] Example 3: A preparation method of a basalt fiber composite bulletproof plate based on multi-dimensional three-dimensional structure, comprising the following steps: S1: preform weaving, yarn material is sent into a weaving machine for weaving treatment, and the first preform, the second preform and the third preform are obtained after weaving treatment; S2: preform pretreatment, the first preform, the second preform and the third preform are pretreated; S3: curing and forming treatment, the first preform, the second preform and the third preform after pretreatment are hot-pressed and cured, to obtain the basalt fiber composite bulletproof plate based on multi-dimensional three-dimensional structure.

[0039] The yarn material is prepared by the following method: continuous basalt fiber is immersed in a first treatment liquid for 60 min, then a second treatment liquid is added and soaked for 3 h, the continuous basalt fiber after soaking is taken out and sent into an oven, the oven is kept at 100 DEG C for 2 h, and then kept at 140 DEG C for 4 h, to obtain a prepared material, the prepared material is immersed in a premix, and after taking out, it is kept at room temperature for 24 h, and then heated at 80 DEG C for 4 h, to obtain the yarn material.

[0040] The mass of the second treatment liquid is 15% of the mass of the first treatment liquid.

[0041] The first treatment liquid is prepared by mixing water-based polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water, and the mass ratio of water-based polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water is 10:4:0.7:0.2:5.

[0042] The second treatment liquid is prepared by mixing hydroxylated multi-walled carbon nanotubes and deionized water, and the addition concentration of hydroxylated multi-walled carbon nanotubes is 0.5wt%.

[0043] The premix is prepared by mixing epoxy resin E51 and polyether amine D230, and the mass ratio of epoxy resin E51 and polyether amine D230 is 100:35.

[0044] The weaving treatment method of the first preform is to set the warp density to 8 roots / cm, the weft density to 8 roots / cm, the binder warp yarn to basalt fiber, and the weaving angle to 20°. The weaving treatment method of the second preform is to set the warp density to 6 roots / cm, the weft density to 6 roots / cm, and the weaving angle to gradually change from 20° to 40°. The weaving treatment method of the third preform is to set the warp density to 5 roots / cm, the weft density to 5 roots / cm, introduce kevlar weft yarn, and the weaving angle to 50°.

[0045] The preform treatment method is to immerse the first preform, the second preform and the third preform in the impregnation liquid, the impregnation temperature is 50℃, the impregnation time is 60min, after impregnation, put into a vacuum bag, the vacuum value is-0.095MPa, keep for 40min, then send into an oven for drying treatment at 100℃ for 1-2h, complete the preform pretreatment, wherein the impregnation liquid is prepared by mixing bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole, and the mass ratio of bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole is 100:15:3.

[0046] The curing forming treatment method is to stack the pretreated first preform, the second preform and the third preform in the hot press mold in turn, apply a pressure of 5MPa, heat to 100℃ at a heating rate of 5℃ / min, keep for 40min, then heat to 150℃ at a heating rate of 2℃ / min, the pressure is increased to 12MPa, keep for 4h, take out after cooling to room temperature, perform trimming and polishing treatment, to obtain the basalt fiber composite bulletproof plate based on multi-dimensional three-dimensional structure.

[0047] Comparative Example 1, the difference between this comparative example and Example 1 is that the ordinary continuous basalt fiber which is not soaked in the first and second treatment liquids and the premix is used to replace the yarn material in this comparative example.

[0048] Comparative Example 2, the difference between this comparative example and Example 1 is that in the curing treatment of this comparative example, the first preform, the second preform and the third preform are replaced by a single first preform which is stacked in three layers for subsequent treatment.

[0049] Comparative Example 3, the difference between this comparative example and Example 1 is that no preform pretreatment is performed in this comparative example.

[0050] Performance test: the performance of the composite ballistic plates prepared in Examples 1-3 and Comparative Examples 1-3 is tested; Ballistic resistance (V50 value): the V50 ballistic limit (m / s) is tested according to the standard GJB 4300-2002 and recorded in the following table; Interlaminar shear strength test: the interlaminar shear strength (MPa) is tested according to the standard GB / T 1450.1-2005 and recorded in the following table.

[0051] Table 1:

[0052] By analyzing and comparing the data in the above table, it can be seen that the performance of the composite ballistic plates prepared by the methods of Examples 1-3 is better than that of Comparative Examples 1-3.

[0053] In the V50 ballistic limit test, the performance of Examples 1-3 is the best, which indicates that the functionalized yarn establishes a firm chemical bonding and mechanical interlocking interface between the fiber and the resin, and at the same time, the multi-dimensional weaving structure realizes the step-by-step dissipation of impact energy, and the impregnation liquid ensures the high toughness between the layers, and the three work together to make the composite ballistic plate effectively resist bullet penetration and quickly disperse stress, while the performance of Comparative Example 1 is the worst, because ordinary basalt fiber is used, the fiber surface is smooth and inert, and the interfacial adhesion between the fiber and the resin matrix is weak, so the stress cannot be effectively transmitted, causing the fiber to be easily pulled out of the resin and causing large-area delamination, and the energy absorption efficiency is extremely low. The performance of Comparative Example 2 decreases significantly, which indicates that the use of a single weaving structure lacks the weaving angle and density gradient in the present application, and the impact stress cannot be effectively dispersed and transmitted, which easily concentrates in a local area, causing the preform to be penetrated too early and the energy to be insufficiently absorbed. The performance of Comparative Example 3 is worse than that of Examples 1-3, because the lack of impregnation liquid leads to insufficient toughness between the layers of the composite ballistic plate, and although the interfacial adhesion is acceptable, cracks are easily generated and quickly expanded between the layers, causing delamination and damage, which weakens the ability to resist multiple impacts; The interlaminar shear strength data shows that the performance of examples 1-3 is excellent, which indicates that the core problem of weak interfacial adhesion in the prior art is solved, which is due to the excellent interfacial bonding provided by the functionalized yarn, and the strong and tough interfacial phase formed by the impregnation liquid in the pretreatment. The data of comparative example 3 is poor, because the continuous basalt fiber is not subjected to impregnation pretreatment, and there is a lack of resin matrix connection between the layers, and the interlaminar bonding force mainly comes from physical contact and weak adhesion by subsequent hot pressing, so the interlaminar shear strength drops sharply. The data of comparative example 1 is even worse, which shows that even after impregnation treatment, using ordinary fibers, the smooth and inert fiber surface cannot form effective bonding with the resin matrix, and the interface is still a weak link.

[0054] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A method for preparing a multi-dimensional three-dimensional structure-based basalt fiber composite ballistic-resistant plate, characterized in that: The method comprises the following steps: S1: weaving the preform, yarn material is sent into the weaving machine for weaving treatment, and the first preform, the second preform and the third preform are obtained after the weaving treatment; S2: preform pretreatment, the first preform, the second preform and the third preform are pretreated; S3: solidification forming treatment, the first preform, the second preform and the third preform after the pretreatment are heat-pressed and solidified to obtain the basalt fiber composite bulletproof plate based on the multi-dimensional three-dimensional structure.

2. The method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure according to claim 1, characterized in that, The yarn material is prepared by the following method: the continuous basalt fiber is immersed in the first treatment liquid for 40-60 min, then the second treatment liquid is added and soaked for 2-3 h, the soaked continuous basalt fiber is taken out and sent into an oven, the oven is kept at 80-100℃ for 1-2 h, then kept at 120-140℃ for 2-4 h to obtain the prepared material, the prepared material is immersed in the premix, taken out and placed at room temperature for 24 h, then heated at 75-80℃ for 2-4 h to obtain the yarn material.

3. The method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure according to claim 2, characterized in that, The mass of the second treatment liquid is 10-15% of the mass of the first treatment liquid.

4. The method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure according to claim 2, characterized in that, The first treatment liquid is prepared by mixing water-based polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water, and the mass ratio of water-based polyurethane, epoxy resin emulsion, KH560, polyethylene glycol and deionized water is 10:3-4:0.5-0.7:0.1-0.2:4-5.

5. The method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure according to claim 2, characterized in that, The second treatment liquid is prepared by mixing hydroxylated multi-walled carbon nanotubes and deionized water and ultrasonic dispersion treatment, and the addition concentration of hydroxylated multi-walled carbon nanotubes is 0.1-0.5wt%.

6. The method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure according to claim 2, characterized in that, The premix is prepared by mixing epoxy resin E51 and polyether amine D230, and the mass ratio of epoxy resin E51 and polyether amine D230 is 100:30-35.

7. The method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure according to claim 1, characterized in that, The weaving treatment method of the first preform is to set the warp density to 6-8 threads / cm, the weft density to 6-8 threads / cm, the connecting warp yarn to at least one of aramid and basalt fiber, and the weaving angle to 20°; The weaving treatment method of the second preform is to set the warp density to 4-6 threads / cm, the weft density to 4-6 threads / cm, and the weaving angle to gradually change from 20° to 40°; The weaving treatment method of the third preform is to set the warp density to 3-5 threads / cm, the weft density to 3-5 threads / cm, introduce at least one weft yarn of UHMWPE or Kevlar, and the weaving angle to 50°.

8. The method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure according to claim 1, characterized in that, The preform treatment method is to immerse the first preform, the second preform and the third preform in the impregnation liquid, the immersion temperature is 40-50℃, the immersion time is 40-60 min, after immersion, the preform is placed in a vacuum bag, the vacuum value is-0.095MPa, and the vacuum is kept for 20-40 min, then the preform is sent into an oven for drying treatment at 80-100℃ for 1-2 h, the preform pretreatment is completed, wherein the impregnation liquid is prepared by mixing bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole, and the mass ratio of bisphenol F type epoxy resin, carboxyl-terminated liquid nitrile rubber and 2-ethyl-4-methyl imidazole is 100:10-15:1-3.

9. The method for preparing a basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure according to claim 1, characterized in that, The method of the solidification forming treatment is: sequentially stacking the first, second and third preforms after pre-treatment in a hot-pressing mold, applying pressure of 3-5 MPa, heating at a heating rate of 2-5 ℃ / min to 80-100 ℃, maintaining pressure and temperature for 20-40 min, then heating at a heating rate of 1-2 ℃ / min to 130-150 ℃, increasing the pressure to 8-12 MPa, maintaining pressure and temperature for 2-4 h, taking out after cooling to room temperature, performing trimming and polishing treatment, and obtaining the basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure.

10. A multi-dimensional three-dimensional structure-based basalt fiber composite ballistic resistant panel, characterized by, The basalt fiber composite bulletproof plate based on a multi-dimensional three-dimensional structure is prepared by the method of any one of claims 1-9.

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