Multi-order unidirectional cloth forming test device and adhesive force test method

Abstract

The present application belongs to the field of unidirectional cloth preparation, and relates to a multi-stage unidirectional cloth forming test device and a bonding force test method, comprising a silk spindle and a conveying unit, the conveying unit is used for reciprocating the silk spindle in a direction perpendicular to the yarn conveying direction, a glue roller and a forming plate are sequentially arranged along the yarn conveying direction, the glue roller is used for applying adhesive on the yarn, and the forming plate is used for winding the yarn. The present application makes one silk spindle reciprocate in a direction perpendicular to the yarn conveying direction through the conveying unit, so that the adhesive is uniformly applied on the yarn through the glue roller, and the yarn with adhesive is uniformly laid and wound through the forming plate. The present application not only effectively improves the preparation efficiency of the weftless cloth, but also effectively reduces the raw material cost. Meanwhile, the present application can be used for on-site debugging and replacement during the development or test stage, and can flexibly master the influence of the types, models and amounts of raw materials on the bulletproof performance of the fiber composite material.

Description

Technical Field

[0001] This invention belongs to the field of unidirectional fabric preparation, and in particular relates to a multi-stage unidirectional fabric molding test device and a method for testing the adhesion between resin adhesives and ultra-high molecular weight polyethylene fibers using the device. Background Technology

[0002] Nonwoven fabric is a material that has not undergone weaving processing. It consists of yarns or fibers arranged neatly and bonded together with adhesives. In the field of special fibers, such as aramid, carbon fiber, and ultra-high molecular weight polyethylene fiber, nonwoven fabric made from these fibers is often used in bulletproof materials, such as bulletproof inserts, explosion-proof blankets, bulletproof armor plates, and bulletproof helmets.

[0003] When developing or testing bulletproof fiber materials, resin adhesive performance, non-woven fiber component design, and composite material layup design, it is necessary to conduct bulletproof rating tests on the final products of the raw materials or auxiliary materials being developed or tested, or to conduct model analysis on the resistance of fiber-reinforced composite materials to high-speed projectile penetration. This allows for further simulation or calculation of parameters such as the laminated structure, thickness, and ballistic limit velocity of bulletproof composite materials, in order to better develop or produce bulletproof composite materials. The preparation process of bulletproof composite materials is as follows: preparation of non-woven fabric - interlayer lamination - hot pressing. Before interlayer lamination, the preparation of non-woven fabric requires a lot of mechanical equipment, mostly involving the flat laying, impregnation, and thermosetting of bundled fibers. During the processing of non-woven fabric, 600-1000 spindles of yarn are usually loaded onto the machine at one time, resulting in high raw material input, long debugging cycle, and slow changeover speed. During the development or testing stage, it is not possible to flexibly control the impact of the type, model, and amount of raw materials on the bulletproof performance of fiber composite materials.

[0004] Ultra-high molecular weight polyethylene (UHMWPE) fiber possesses advantages such as low density, high specific modulus, high specific strength, and excellent energy absorption performance. The macromolecular chemical structure of UHMWPE fiber does not contain polar groups, is chemically inactive, has low surface energy, and a small macromolecular cross-sectional area; furthermore, its supramolecular structure is highly ordered, and the high stretching during processing results in extremely high crystallinity and orientation, leading to a dense structure. Therefore, the non-polar nature of the fiber's molecular structure makes it difficult to wet, resulting in poor interfacial effects and poor resin adhesion during the processing of bulletproof composite materials. Current technology requires laying 600-900 bundles of fiber flat on a production line and then applying adhesive to create a unidirectional fabric before testing the adhesive strength. Currently, there is no method for testing the adhesion between resin adhesives and UHMWPE fibers. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-stage unidirectional fabric forming test device to solve the technical problem that the preparation of non-woven fabric in the prior art requires a lot of mechanical equipment and a large number of spindles, and to provide an adhesive force testing method to realize the economical, fast and reliable processing and trial production of composite materials with a certain structure and number of layers for target testing, and to test the adhesive force between the resin adhesive and the ultra-high molecular weight polyethylene fiber.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a multi-stage unidirectional fabric forming test device, including a spindle and a conveying unit. The conveying unit is used to make the spindle reciprocate in a direction perpendicular to the yarn conveying direction. An impregnation roller and a forming plate are arranged sequentially along the yarn conveying direction. The impregnation roller is used to apply adhesive to the yarn, and the forming plate is used to wind up the yarn. By making the yarn output from one spindle reciprocate in a direction perpendicular to the yarn conveying direction through the conveying unit, the adhesive is evenly applied to the yarn by the impregnation roller, and the adhesive-coated yarn is evenly laid out and wound up by the forming plate. This not only effectively improves the preparation efficiency of non-woven fabric, but also effectively reduces the cost of raw materials. At the same time, it facilitates on-site debugging and model change during the development or testing stage, and allows for flexible control of the impact of the type, model and amount of raw materials on the ballistic performance of fiber composite materials.

[0008] According to one aspect of the present invention, the conveying unit includes a conveying bracket, a conveying motor, a conveying screw, a conveying slide bar, and a conveying slider. The conveying motor, the conveying screw, and the conveying slide bar are all mounted on the conveying bracket. The conveying screw and the conveying slide bar are both arranged in a direction perpendicular to the yarn conveying direction. The conveying screw is connected to the output end of the conveying motor, and the conveying slider is connected to the conveying screw. The yarn spindle is mounted on the conveying slider. The conveying motor drives the yarn spindle to reciprocate on the dip roller in a direction perpendicular to the yarn conveying direction, thereby causing the yarn to be laid flat and wound onto the forming plate. At the same time, the dip roller can also evenly apply adhesive to the yarn, preventing a certain point on the dip roller from being in contact with the yarn for a long time, which would cause friction damage at the contact point and affect the adhesive application effect.

[0009] According to one aspect of the invention, the conveying motor rotates to drive the conveying slider and the conveying slide rod to slide on the conveying lead screw.

[0010] According to one aspect of the invention, the conveying motor rotates to drive the conveying lead screw and the conveying slider to slide on the conveying slide.

[0011] According to one aspect of the present invention, the input side of the dip roller is provided with a feed roller, and the output side of the dip roller is provided with a discharge roller. The dip roller is lower than the feed roller and the discharge roller. The dip roller, the feed roller and the discharge roller are all arranged in a direction perpendicular to the yarn conveying direction. The dip roller, the feed roller and the discharge roller are all mounted on a discharge support. The discharge support is provided with a dip motor for driving the dip roller, the feed roller and the discharge roller to rotate.

[0012] According to one aspect of the present invention, a guide rod is provided between the yarn spindle and the impregnation roller, the guide rod is disposed on a guide rod support, a scraper is provided between the impregnation roller and the forming plate, the scraper is disposed on a scraper support, a glue collection bucket is provided below the scraper, the guide rod is arranged in a direction perpendicular to the yarn conveying direction, and the scraper is arranged in a direction perpendicular to the yarn conveying direction.

[0013] According to one aspect of the invention, the surface of the molded plate is covered with a PE film.

[0014] According to one aspect of the present invention, the molding plate is disposed on a molding support, and the molding support is provided with a molding motor for driving the molding plate to rotate.

[0015] The present invention also provides a method for testing adhesive strength, comprising the following steps:

[0016] S1. Wind ultra-high molecular weight polyethylene fibers onto a filament spindle;

[0017] S2. The spindle is reciprocated in a direction perpendicular to the yarn conveying direction output by the spindle so that the ultra-high molecular weight polyethylene fiber is uniformly impregnated on the impregnation roller. The ultra-high molecular weight polyethylene fiber is immersed in the adhesive and the adhesive content is controlled at 15%-22%. The ultra-high molecular weight polyethylene fiber is conveyed, arranged and wound on the forming plate.

[0018] S3. After the molding plate is covered with ultra-high molecular weight polyethylene fibers, the molding plate and the ultra-high molecular weight polyethylene fibers on it are cured under a pressure of 5-7 kPa and a temperature of 85-95°C.

[0019] S4. Peel and demold the cured ultra-high molecular weight polyethylene fiber from the molding plate to obtain unidirectional fabric, and cut the demolded unidirectional fabric from the middle, and trim the size to obtain multiple unidirectional fabrics of the same size.

[0020] S5. Overlap each two unidirectional fabrics from step S4 in the direction of 0° / 90° and heat press them to form multiple 2-layer composite unidirectional fabrics.

[0021] S6. At least one composite unidirectional fabric obtained in step S5 is hot-pressed to form a bulletproof material for target testing.

[0022] According to another aspect of the present invention, the linear density of the ultra-high molecular weight polyethylene fiber in step S1 is one or more of 800D, 1200D, and 1600D, and the diameter of the spindle (1) is 85-105mm and the hardness is 80-90HB; the molding plate (4) in step S2 is a plate with a length and width of 50×50cm and a thickness of 3-5mm.

[0023] According to another aspect of the invention, the adhesive used in step S2 is selected from at least one of waterborne polyurethane, epoxy resin, and vinyl resin.

[0024] According to another aspect of the present invention, step S3 includes: placing the molding plate (4) and the ultra-high molecular weight polyethylene fibers thereon under multiple pieces of plexiglass, and correspondingly placing multiple pieces of plexiglass under the molding plate (4), wherein the plexiglass in contact with the molding plate (4) is coated with a release agent and covered with a PE film, fixed with clips, and cured in an oven for 1 hour.

[0025] According to another aspect of the invention, step S6 includes:

[0026] The bulletproof material was stretched at both ends, and the external tensile force that the two-layer composite unidirectional fabric could withstand when peeling off the overlapping part was tested. The adhesive force and the external tensile force were positively correlated.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. The multi-stage unidirectional fabric forming test device of the present invention uses a conveying unit to make the yarn output from a spindle reciprocate in a direction perpendicular to the yarn conveying direction, thereby uniformly applying adhesive to the yarn through an impregnation roller, and simultaneously uniformly laying and winding the adhesive-coated yarn through a forming plate. This not only effectively improves the preparation efficiency of non-woven fabric, but also effectively reduces the cost of raw materials. At the same time, it facilitates on-site debugging and model change during the development or testing stage, and flexibly grasps the influence of the type, model and amount of raw and auxiliary materials on the ballistic performance of fiber composite materials.

[0029] 2. The adhesion test method of the present invention can economically, quickly and reliably process and test composite materials with a certain structure and number of layers for target testing, and test the adhesion between the resin adhesive and the ultra-high molecular weight polyethylene fiber. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a front view schematic diagram of the multi-stage unidirectional fabric forming test device of the present invention;

[0032] Figure 2 This is a top view of the multi-stage unidirectional fabric forming test device of the present invention.

[0033] Figure 3 This is a schematic diagram of the conveying unit of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the dip roller, the feed roller, the output roller, and the yarn of the present invention.

[0035] Figure 5 This is a schematic diagram of the structure of the molding plate and yarn of the present invention.

[0036] In the diagram: 1. Spindle; 11. Yarn; 2. Conveying unit; 21. Conveying support; 22. Conveying motor; 23. Conveying screw; 24. Conveying slide bar; 25. Conveying slider; 3. Dipping roller; 31. Feed roller; 32. Output roller; 33. Output support; 34. Dipping motor; 4. Forming plate; 41. Forming support; 42. Forming motor; 5. Guide rod; 51. Guide support; 6. Scraper; 61. Scraper support; 62. Glue collection bucket. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0039] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Please see Figures 1 to 5 This invention provides a multi-stage unidirectional fabric forming test device, comprising a spindle 1 and a conveying unit 2. A certain linear density of ultra-high molecular weight polyethylene fiber, i.e., yarn 11, is wound on the spindle 1. The linear density of the ultra-high molecular weight polyethylene fiber is one or more of 800D, 1200D, and 1600D. The diameter of the spindle 1 is 85-105mm, and the hardness is 80-90HB. The conveying unit 2 is used to reciprocate the spindle 1 in a direction perpendicular to the yarn conveying direction, causing the fiber wound on the spindle 1 to unwind. An impregnation roller 3 and a forming plate 4 are sequentially arranged along the yarn conveying direction. The impregnation roller 3 is used to apply adhesive to the yarn 11, and the forming plate 4 is used to wind the yarn 11. The adhesive is at least one of waterborne polyurethane, epoxy resin, and vinyl ester resin, preferably at least one of polyether-type waterborne polyurethane, polyester-type waterborne polyurethane, and vinyl ester resin.

[0043] The conveying unit 2 causes a spindle 1 to reciprocate in a direction perpendicular to the yarn conveying direction, thereby uniformly applying adhesive to the yarn 11 through the dip roller 3. At the same time, the forming plate 4 evenly lays and winds up the adhesive-coated yarn 11. After the adhesive on the yarn 11 is cured, a non-woven fabric that meets the test requirements can be obtained. The preparation of non-woven fabric can be completed with a single spindle 1, which not only effectively improves the preparation efficiency of non-woven fabric, but also effectively reduces the cost of raw materials. At the same time, it is convenient for on-site debugging and model change during the development or testing stage, and flexibly grasps the impact of the type, model and amount of raw materials on the ballistic performance of fiber composite materials.

[0044] The conveying unit 2 includes a conveying bracket 21, a conveying motor 22, a conveying screw 23, a conveying slide bar 24, and a conveying slider 25. The conveying motor 22, conveying screw 23, and conveying slide bar 24 are all mounted on the conveying bracket 21. The conveying slider 25 is slidably mounted on the conveying slide bar 24. The conveying screw 23 is connected to the output end of the conveying motor 22, and the conveying slider 25 is connected to the screw nut of the conveying screw 23. The yarn spindle 1 is mounted on the conveying slider 25. Both the conveying screw 23 and the conveying slide bar 24 are arranged perpendicular to the yarn conveying direction. Therefore, by driving the conveying screw 23 to rotate forward and backward by the conveying motor 22, the screw nut of the conveying screw 23 can drive the conveying slider 25. The conveyor slide 24 reciprocates in a direction perpendicular to the yarn conveying direction, thereby causing the spindle 1 to reciprocate in a direction perpendicular to the yarn conveying direction. In the yarn conveying direction, the spindle and the yarn 11 on it will reciprocate on the dip roller 3 in a direction perpendicular to the yarn conveying direction. While the yarn 11 is conveyed along the yarn conveying direction, it also slides in a direction perpendicular to the yarn conveying direction, thereby causing the yarn 11 to be laid flat and wound onto the forming plate 4. At the same time, the adhesive can be evenly applied to the yarn 11 by the dip roller 3, preventing a certain point on the dip roller 3 from being in contact with the yarn 11 for a long time, which would cause friction damage at the contact point and affect the adhesive application effect.

[0045] As another embodiment of this solution, the conveying slider is detachably connected to the yarn spindle and driven by the conveying motor 22, which drives the conveying slider, yarn spindle and conveying slide rod to slide on the conveying screw in the yarn conveying direction.

[0046] The dip roller 3 has an input roller 31 on its input side and an output roller 32 on its output side. The dip roller 3 is lower than the input roller 31 and the output roller 32. The dip roller 3, the input roller 31, and the output roller 32 are all mounted on the output support 33. The output support 33 is equipped with a dip motor 34 for driving the dip roller 3, the input roller 31, and the output roller 32 to rotate. The dip roller 3, the input roller 31, and the output roller 32 are all arranged perpendicular to the yarn conveying direction. Therefore, after the yarn 11 is dipped... When the rubber roller 3 is in operation, the rubber roller 3, the feed roller 31 and the output roller 32 are driven to rotate by the rubber-impregnating motor 34. This reduces the friction on the yarn 11 on the rubber roller 3, the feed roller 31 and the output roller 32. At the same time, the feed roller 31 and the output roller 32 support the yarn 11, so that the yarn 11 is tightly attached to the rubber roller 3. This ensures that the yarn 11 moves back and forth on the rubber roller 3 in a direction perpendicular to the yarn conveying direction, so that the adhesive is evenly applied to the yarn 11 by the rubber roller 3.

[0047] A guide rod 5 is provided between the spindle 1 and the dip roller 3. The guide rod 5 is set perpendicular to the yarn conveying direction and is mounted on the guide support 51. A scraper 6 is provided between the dip roller 3 and the forming plate 4. The scraper 6 is set perpendicular to the yarn conveying direction and is mounted on the scraper support 61. A collection tank 62 is provided below the scraper 6. The guide rod 5 is used to support the yarn 11 between the spindle 1 and the dip roller 3. The scraper 14 is used to scrape off the excess adhesive on the yarn 11. The ultra-high molecular weight polyethylene fiber, i.e., the yarn 11, which has been impregnated with adhesive, is controlled by the scraper 14 to have a fiber adhesive content of 15%-22%. The scraped adhesive is collected in the collection tank 62.

[0048] The forming plate 4 is a plate with a length and width of 50×50cm and a thickness of 3-5mm. The plate surface of the forming plate 4 is covered with PE film. The forming plate 4 is set on the forming support 41. The forming support 41 is equipped with a forming motor 42 for driving the forming plate 4 to rotate. Therefore, when the forming motor 42 drives the forming plate 4 to rotate, the forming plate 4 lays and winds the PVC-impregnated yarn 11, which reciprocates in a direction perpendicular to the yarn conveying direction, in a flat manner. By controlling the rotation speed of the forming plate 4 and the movement of the spindle 1, the yarn 11 is evenly and neatly arranged on the forming plate 4.

[0049] After the fibers are evenly and neatly distributed on the molding plate 4, the molding plate 4 is removed from the molding support 41. The fibers on the molding plate 4 are placed under five pieces of plexiglass of the same size, and a piece of plexiglass is placed under the molding plate 4. The two pieces of plexiglass in contact with the molding plate 4 are coated with a release agent and covered with PE film. They are then fixed with clips and cured in an oven at a pressure of 5-7 kPa and a temperature of 85-95°C for 1 hour.

[0050] The cured molding plate 4 is removed from the oven, and the cured unidirectional fabric is peeled off and demolded from the molding plate 4. The demolded unidirectional fabric is cut from the middle, and after trimming, two unidirectional fabrics of the same size are obtained. The two unidirectional fabrics are then overlapped at 0° / 90° and hot-pressed to obtain a 2-layer composite unidirectional fabric. Finally, several composite unidirectional fabrics are hot-pressed to obtain bulletproof material of a certain size. A composite material with a certain structure and number of layers is processed and trial-produced for target testing to test the adhesion between the resin adhesive and the ultra-high molecular weight polyethylene fiber. For example, the unidirectional fabric is cut into 40mm pieces. Two 800mm sheet test samples were stacked together, with half of the upper test sample overlapping the lower test sample. After passing through a hot press roller, the two sheet test samples were bonded together by heat. The bonded test samples were then tested on a universal testing machine, with one end clamped on the upper fixture and the other end clamped on the lower fixture. The test spacing was adjusted to 750mm. After applying tensile force, the external tension that the overlapping part could withstand when peeling was tested. The bonding forces of the five composite materials were measured to be 32.5N, 35.6N, 33.2N, 32.8N, and 33.1N, respectively, all of which reached the bulletproof level.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-stage unidirectional tape forming test apparatus, characterized by: It includes a silk spindle (1) and a conveying unit (2), the silk spindle is 1 silk spindle; the conveying unit (2) is used for reciprocating motion of the silk spindle (1) in the direction perpendicular to the yarn conveying direction, and the glue-dipping roller (3) and the forming plate (4) are sequentially arranged in the yarn conveying direction, the glue-dipping roller (3) is used for applying adhesive on the yarn (11), and the forming plate (4) is used for winding the yarn (11); The conveying unit (2) includes a conveying support (21), a conveying motor (22), a conveying screw rod (23), a conveying slide rod (24) and a conveying slide block (25), the conveying motor (22), the conveying screw rod (23) and the conveying slide rod (24) are all arranged on the conveying support (21), the conveying screw rod (23) is connected with the output end of the conveying motor (22), the conveying slide block (25) is connected with the screw rod nut of the conveying screw rod (23), and the silk spindle (1) is arranged on the conveying slide block (25); the conveying screw rod (23) and the conveying slide rod (24) are both arranged in the direction perpendicular to the yarn (11) conveying direction; The input side of the glue-dipping roller (3) is provided with an in-silk roller (31), the output side of the glue-dipping roller (3) is provided with an out-silk roller (32), the glue-dipping roller (3) is lower than the in-silk roller (31) and the out-silk roller (32), the glue-dipping roller (3), the in-silk roller (31) and the out-silk roller (32) are all arranged on the out-silk support (33), and the out-silk support (33) is provided with a glue-dipping motor (34) for driving the glue-dipping roller (3), the in-silk roller (31) and the out-silk roller (32) to rotate; the glue-dipping roller (3), the in-silk roller (31) and the out-silk roller (32) are all arranged in the direction perpendicular to the yarn (11) conveying direction.

2. The multi-stage unidirectional tape forming test apparatus of claim 1, wherein: The conveying motor (22) drives the conveying slide block (25) and the conveying slide rod (24) to slide on the conveying screw rod (23).

3. The multi-stage unidirectional tape forming test apparatus of claim 1, wherein: The conveying motor (22) drives the conveying screw rod (23) and the conveying slide block (25) to slide on the conveying slide rod (24).

4. The multi-stage unidirectional tape forming test apparatus of claim 1, wherein: The silk spindle (1) and the glue-dipping roller (3) are provided with a wire guide rod (5), the wire guide rod (5) is arranged on a wire guide support (51), the glue-dipping roller (3) and the forming plate (4) are provided with a glue scraping plate (6), the glue scraping plate (6) is arranged on a glue scraping support (61), and a glue collecting barrel (62) is arranged below the glue scraping plate (6); the wire guide rod (5) is arranged in the direction perpendicular to the yarn (11) conveying direction, and the glue scraping plate (6) is arranged in the direction perpendicular to the yarn (11) conveying direction.

5. The multi-stage unidirectional tape forming test apparatus of claim 1, wherein: The surface of the forming plate (4) is covered with a PE film.

6. The multi-stage unidirectional tape forming test apparatus of claim 1 or 5, wherein: The forming plate (4) is arranged on a forming support (41), and the forming support (41) is provided with a forming motor (42) for driving the forming plate (4) to rotate.

7. A method for testing adhesive force using the multi-stage unidirectional tape forming test apparatus according to any one of claims 1 to 6, characterized by, The method comprises the following steps: S1, winding the ultra-high molecular weight polyethylene fiber on the silk spindle (1); the silk spindle is 1 silk spindle; S2, reciprocating the filament spindle (1) in a direction perpendicular to the yarn (11) conveying direction of the filament spindle (1) output, so that the ultra-high molecular weight polyethylene fiber is evenly dipped on the dipping roller, the ultra-high molecular weight polyethylene fiber is immersed in the adhesive and the adhesive rate is controlled at 15%-22%, and the ultra-high molecular weight polyethylene fiber is conveyed, arranged and rolled on the forming plate (4); the adhesive is selected from at least one of water-based polyurethane, epoxy resin and vinyl resin; S3, after the forming plate (4) is filled with ultra-high molecular weight polyethylene fiber, the forming plate (4) and the ultra-high molecular weight polyethylene fiber thereon are cured under the conditions of 5-7Kpa pressure and 85-95℃ temperature; S4, the cured ultra-high molecular weight polyethylene fiber is stripped from the forming plate (4) to obtain a unidirectional cloth, and the unidirectional cloth is cut from the middle, trimmed in size, and a plurality of unidirectional cloths with the same size are obtained; S5, each two unidirectional cloths in step S4 are overlapped according to the direction of 0° / 90° and hot-pressed to obtain a plurality of 2-layer composite unidirectional cloths; S6, at least one composite unidirectional cloth obtained in step S5 is hot-pressed to obtain a bulletproof material, which is used for target test.

8. The adhesion test method according to claim 7, wherein The linear density of the ultra-high molecular weight polyethylene fiber in step S1 is one or more of 800D, 1200D and 1600D, the diameter of the filament spindle (1) is 85-105mm, and the hardness is 80-90HB; the forming plate (4) in step S2 is a plate with a length of 50cm, a width of 50cm and a thickness of 3-5mm.

9. The adhesion test method according to claim 7, wherein Step S3 includes: placing the forming plate (4) and the ultra-high molecular weight polyethylene fiber thereon under a plurality of organic glass, and placing a plurality of organic glass under the forming plate (4), wherein the organic glass contacting the forming plate (4) is coated with release agent and covered with PE film, and is fixed using a clip, and is cured in an oven for 1 hour.

10. The adhesion test method according to claim 7, wherein Step S6 includes: Stretching both ends of the bulletproof material, testing the additional tension that the overlapping part of the two-layer composite unidirectional cloth can withstand when peeled off, and the adhesive force and the additional tension are positively related.

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