A method for preparing a high-performance thermoplastic polyaryletherketone wide-width fabric prepreg.

Abstract

This invention relates to the field of composite material preparation technology, specifically to a method for preparing a high-performance thermoplastic polyaryletherketone (PAEK) wide-width fabric prepreg. The method includes the following steps: passing the fiber fabric sequentially through an unwinding device, a first horizontal high-temperature furnace, a first impregnation guide roller, a first vertical high-temperature furnace, a second vertical high-temperature furnace, a second impregnation guide roller, a third impregnation guide roller, a third vertical high-temperature furnace, a fourth vertical high-temperature furnace, a fourth impregnation guide roller, a second horizontal high-temperature furnace, a high-temperature pressure roller, a traction roller, and a winding device; the first and second impregnation guide rollers are both located in a first suspension glue tank, and the third and fourth impregnation guide rollers are both located in a second suspension glue tank; after traction begins, each heating device is heated to a higher temperature; after heating to a higher temperature, the fiber fabric is wound up. The purpose of this method for preparing a high-performance thermoplastic PAEK wide-width fabric prepreg is to solve the problems of poor wetting between the resin and the fabric and low resin content in the fabric prepreg.

Description

Technical Field

[0001] This invention relates to the field of composite material preparation technology, specifically to a method for preparing a high-performance thermoplastic polyaryletherketone wide-width fabric prepreg. Background Technology

[0002] Thermoplastic prepregs can be stored at room temperature for extended periods. Thermoplastic composites possess characteristics such as high toughness, excellent fatigue resistance, reusability, and easy recycling and repair. They are suitable for automated processes such as hot pressing, offering high molding efficiency and low cost. They are gaining increasing attention and application in the aerospace field and are a crucial component of green aerospace structural materials. The application of thermoplastic resin-based composites in aerospace and industrial sectors is on the rise. Thermoplastic prepregs are a core intermediate material in the preparation of thermoplastic composites, and high-performance thermoplastic fabric prepregs have a clear and urgent need in industries such as helicopters, fixed-wing aircraft, ships, and petroleum electronics.

[0003] Due to the high viscosity, high processing temperature, and poor solubility of high-performance thermoplastic resins for aerospace applications, such as polyaryletherketone resins, traditional hot-melt methods have been insufficient for preparing wide-width fabric prepregs. The resulting prepregs often fail to impregnate the fibers with resin, and the width is typically limited to 300 mm. Commercially available prepregs prepared using the powder-sprinkling method suffer from uneven resin distribution, resulting in an uneven appearance, difficulty in controlling resin content, and the need for safety measures in the powder space environment, making them unsuitable for large-scale production. While powder suspension methods have emerged in recent years, they produce prepregs with low resin content, generally not exceeding 20%, and widths typically not exceeding 600 mm. Therefore, there is an urgent need to develop a method for preparing high-performance thermoplastic polyaryletherketone wide-width fabric prepregs that can achieve a maximum width of at least 1000 mm and a controllable resin content between 30% and 50%, meeting the needs of aerospace, weaponry, and transportation industries.

[0004] Therefore, the inventors provide a method for preparing high-performance thermoplastic polyaryletherketone wide-width fabric prepreg. Summary of the Invention

[0005] (1) Technical problems to be solved

[0006] This invention provides a method for preparing high-performance thermoplastic polyaryletherketone wide-width fabric prepreg, which solves the technical problems of poor wetting between resin and fabric and low resin content in the prepreg preparation method.

[0007] (2) Technical solution

[0008] This invention provides a method for preparing a high-performance thermoplastic polyaryletherketone wide-width fabric prepreg, comprising the following steps:

[0009] The fiber fabric is sequentially passed through an unwinding device, a first horizontal high-temperature furnace, a first impregnation guide roller, a first vertical high-temperature furnace, a second vertical high-temperature furnace, a second impregnation guide roller, a third impregnation guide roller, a third vertical high-temperature furnace, a fourth vertical high-temperature furnace, a fourth impregnation guide roller, a second horizontal high-temperature furnace, a high-temperature pressure roller, a traction roller, and a winding device; the first and second impregnation guide rollers are both located in the suspension in the first suspension trough, and the third and fourth impregnation guide rollers are both located in the suspension in the second suspension trough;

[0010] After traction begins, all heating devices are heated to a higher temperature.

[0011] After heating is completed, the fiber fabric is wound up.

[0012] Furthermore, the suspension is an aqueous suspension, comprising high-performance thermoplastic resin powder, emulsifier, dispersant, defoamer, and water.

[0013] Furthermore, the high-performance resin includes, but is not limited to, one or a mixture of at least two of polyetheretherketone, polyetherketoneketone, polyethersulfoneetherketoneketone, polyetherketone, modified polyethersulfoneketone, and modified polyetherketone.

[0014] Furthermore, the powder particle size D of the high-performance thermoplastic resin 50 The size is 5–30 μm.

[0015] Furthermore, the content of thermoplastic resin in the suspension is 5% to 30%, and the thermal decomposition temperature of other components besides thermoplastic resin does not exceed 300°C.

[0016] Furthermore, the fiber fabric includes, but is not limited to, carbon fiber fabric, glass fiber fabric, quartz fiber fabric, and organic fiber fabric.

[0017] Furthermore, the basis weight of the fabric fibers ranges from 20 to 400 g / m². 2 .

[0018] Furthermore, the linear velocity of the material after normal operation is 0.5 to 10 m / min.

[0019] Furthermore, the drying tunnel operating temperature of the first horizontal high-temperature furnace and the second horizontal high-temperature furnace is 250-450℃.

[0020] Furthermore, the drying tunnel operating temperature of the first vertical high-temperature furnace and the second vertical high-temperature furnace is 250-450℃, and the drying tunnel operating temperature of the third vertical high-temperature furnace and the fourth vertical high-temperature furnace is 200-400℃.

[0021] (3) Beneficial effects

[0022] In summary, this invention, by employing a powder suspension hot-melt method, achieves better resin impregnation of fabrics, allows for adjustment of the prepreg width, and enables the preparation of high-performance thermoplastic wide-width fabric prepregs with excellent impregnation effects. Furthermore, through multiple cycles of impregnation and drying, fabric prepregs with a high resin content of 30-50% can be prepared. The use of a high-temperature controllable hot-press roller to rapidly hot-press the prepreg heated in the high-temperature drying tunnel further promotes resin impregnation of the fiber fabric, significantly improving the surface quality of the fabric prepreg. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic flowchart of a method for preparing a high-performance thermoplastic polyaryletherketone wide-width fabric prepreg according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the production line for preparing high-performance thermoplastic polyaryletherketone wide-width fabric prepregs provided in an embodiment of the present invention.

[0026] In the picture:

[0027] 1-Unwinding device; 2-First horizontal high-temperature furnace; 3-First impregnation guide roller; 4-First vertical high-temperature furnace; 5-Second vertical high-temperature furnace; 6-Second impregnation guide roller; 7-Third impregnation guide roller; 8-Third vertical high-temperature furnace; 9-Fourth vertical high-temperature furnace; 10-Fourth impregnation guide roller; 11-Second horizontal high-temperature furnace; 12-High-temperature pressure roller; 13-Traction roller; 14-Rewinding device; 15-First suspension glue tank; 16-Second suspension glue tank; 17-Unwinding roller; 18-First guide roller; 19-Second guide roller; 20-First pressure roller; 21-Third guide roller; 22-Second pressure roller; 100-Fiber fabric. Detailed Implementation

[0028] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention. That is, the present invention is not limited to the described embodiments, and any modifications, substitutions and improvements to the parts, components and connection methods are covered without departing from the spirit of the present invention.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this invention and 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "install" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Figure 1 This is a schematic flowchart illustrating a method for preparing a high-performance thermoplastic polyaryletherketone wide-width fabric prepreg according to an embodiment of the present invention. Figure 1 As shown, the method may include the following steps:

[0033] S100, the fiber fabric 100 is sequentially passed through the unwinding device 1, the first horizontal high-temperature furnace 2, the first impregnation guide roller 3, the first vertical high-temperature furnace 4, the second vertical high-temperature furnace 5, the second impregnation guide roller 6, the third impregnation guide roller 7, the third vertical high-temperature furnace 8, the fourth vertical high-temperature furnace 9, the fourth impregnation guide roller 10, the second horizontal high-temperature furnace 11, the high-temperature pressure roller 12, the traction roller 13, and the winding device 14; the first impregnation guide roller 3 and the second impregnation guide roller 6 are both located in the suspension in the first suspension trough 15, and the third impregnation guide roller 7 and the fourth impregnation guide roller 10 are both located in the suspension in the second suspension trough 16.

[0034] Specifically, the structure of the preparation production line used in this preparation process is as follows: Figure 2As shown, the unwinding device 1 is similar to the conventional prepreg unwinding device, capable of both active and passive unwinding. An additional stretching roller 17 is required during unwinding. The linear speed of the fabric unwinding is 0.5–10 m / min, preferably 1–5 m / min. The effective width of all unwinding shafts is not less than 1200 mm. The vertical high-temperature drying tunnel comprises four sets of vertical high-temperature furnaces, all employing mid-infrared heating and equipped with exhaust systems. The first vertical high-temperature furnace 4 and the second vertical high-temperature furnace 5 are located directly above the first suspension trough 15. The effective width of each furnace is not less than 1200 mm, and the effective length is 1000–3000 mm, ensuring a fiber transit time of not less than 20 seconds. The third vertical high-temperature furnace 8 and the fourth vertical high-temperature furnace 9 are directly above the second suspension trough 16. The prepreg residence time in each furnace is 20–120 seconds.

[0035] like Figure 2 As shown, the heating systems of each set of vertical high-temperature drying tunnels can be controlled independently. The fiber fabric 100 enters from the lower ends of the first vertical high-temperature furnace 4 and the third vertical high-temperature furnace 8, and from the upper ends of the second vertical high-temperature furnace 5 and the fourth vertical high-temperature furnace 9. The fiber fabric 100 between the second vertical high-temperature furnace 5 and the third vertical high-temperature furnace 8 undergoes two impregnations in the first suspension adhesive tank 15 and then is hot-pressed by the first pressure roller 20. The fiber fabric 100 between the fourth vertical high-temperature furnace 9 and the second horizontal high-temperature furnace 11 undergoes two impregnations in the second suspension adhesive tank 16 and then is hot-pressed by the second pressure roller 22. Because a high-temperature controllable hot-pressing roller is used to rapidly hot-press the prepreg heated in the high-temperature drying tunnels, the resin impregnation of the fiber fabric is further promoted, significantly improving the surface quality of the prepreg, resulting in a smooth and aesthetically pleasing appearance.

[0036] Meanwhile, the fiber fabric 100 between the first vertical high-temperature furnace 4 and the second vertical high-temperature furnace 5 is oriented by the second guide roller 19 located directly above the vertical high-temperature furnace, and the fiber fabric 100 between the third vertical high-temperature furnace 8 and the fourth vertical high-temperature furnace 9 is oriented by the third guide roller 21 located directly above the vertical high-temperature furnace.

[0037] The first and second suspension tanks 15 and 16, which are storage tanks for the resin-water suspension, can be equipped with magnetic stirring devices to prevent material sedimentation. However, specific requirements apply to the suspension, including solid content, formulation, and viscosity. The suspension tank comprises two suspension tanks, whose solid content can be the same or different, depending on the resin content requirements of the target prepreg. The suspension contains four sets of impregnation guide rollers: a first impregnation guide roller 3, a second impregnation guide roller 6, a third impregnation guide roller 7, and a fourth impregnation guide roller 9. Each set includes 1-3 impregnation pressure rollers. The interaction of these rollers causes the fabric to pass through the pressure rollers in an S-shape, achieving thorough impregnation. The working width of the suspension tank is not less than 1200 mm, and the circular runout of each impregnation guide roller is not less than 5 μm. Using the powder suspension hot-melt method, the resin impregnation effect on the fabric is better, and the prepreg width can be adjusted, enabling the preparation of high-performance thermoplastic wide-width prepregs with excellent impregnation effects.

[0038] like Figure 2 As shown, the high-temperature pressure roller 12 consists of one set or two sets of parallel pressure rollers, made of stainless steel with a chrome-plated surface, with an effective width of not less than 1200 mm, and an operating temperature of 50–300 °C, preferably 150–250 °C. The high-temperature pressure roller 12 is positioned as close as possible to the outlet of the second horizontal high-temperature furnace 11 to prevent rapid cooling of the material. The circular runout of each high-temperature pressure roller is not less than 3 μm, and the applied pressure is 1–10 MPa, preferably 2–5 MPa.

[0039] The traction tension of the traction roller 13 is controllable within the range of 60 to 300 N, and the effective width of the traction roller 13 and the winding device 14 is not less than 1200 mm.

[0040] Before step S100, there is also a pre-start preparation: check whether the raw materials such as suspension and fiber fabric, each unit of the equipment, and water, electricity and gas are in place and normal, and start feeding materials after all meet the preparation requirements.

[0041] S200: After traction begins, each heating device is heated to increase its temperature.

[0042] Specifically, when the traction roller 13 is started, the linear speed of the equipment is below 0.5 m / min during the heating process. The operating temperature of the first vertical high-temperature furnace 4 and the second vertical high-temperature furnace 5 is 250–450℃, with a preferred temperature of 320–380℃. The temperature setting is adjusted according to the type of fiber sizing agent and the operating speed. The operating temperature of the third vertical high-temperature furnace 8 and the fourth vertical high-temperature furnace 9 is 200–400℃, with a preferred temperature of 250–350℃. The residence time of the prepreg in each furnace is 20–120 s. The temperature setting range of the high-temperature pressure roller 12 is 50–300℃.

[0043] S300: After heating and raising the temperature, the fiber fabric is wound up.

[0044] Specifically, start all other units of the equipment, including various pressure rollers, guide rollers, traction winding devices, etc., and begin winding after stabilization. After normal operation, the linear speed of the material is 1 to 5 m / min, preferably 2 to 3 m / min.

[0045] In some optional embodiments, the suspension is an aqueous suspension comprising high-performance thermoplastic resin powder, emulsifier, dispersant, defoamer, and water. Because it uses an aqueous suspension, it produces less pollution and poses minimal harm to operators, fully leveraging the efficient and low-cost manufacturing process of thermoplastic composites and achieving green and sustainable development. The amount of residual material and waste generated during the preparation process is small and recyclable.

[0046] In some alternative embodiments, the high-performance resin includes, but is not limited to, one or a mixture of at least two of polyetheretherketone, polyetherketoneketone, polyethersulfoneetherketoneketone, polyetherketone, modified polyethersulfoneketone, and modified polyetherketone. Specifically, the powder particle size D of the high-performance thermoplastic resin... 50 The micrometer size is 5–30 μm. The content of thermoplastic resin in the suspension is 5–30%, preferably 10–20%, and the thermal decomposition temperature of other components besides the thermoplastic resin does not exceed 300°C. The fiber fabric includes, but is not limited to, carbon fiber fabric, glass fiber fabric, quartz fiber fabric, and organic fiber fabric; the basis weight of the fabric fibers ranges from 20 to 400 g / m². 2 .

[0047] Example 1

[0048] A method for preparing high-performance thermoplastic polyaryletherketone wide-width fabric prepreg:

[0049] ①Preparation before start-up: Check whether the polyether ether ketone suspension, fabric and other raw materials, all units of the equipment and water, electricity and gas are in place and in good working order, and start feeding materials after all the preparation requirements are met.

[0050] ② A width of 1000mm and a surface density of 198g / m³ 2 The plain weave carbon fiber fabric ZT7H3198P passes sequentially through the fiber fabric unwinding device, stretching roller, horizontal high-temperature drying tunnel, guide roller, impregnation guide roller, vertical high-temperature drying tunnel, guide roller, vertical high-temperature drying tunnel, impregnation guide roller, pressure roller, impregnation guide roller, vertical high-temperature drying tunnel, guide roller, vertical high-temperature drying tunnel, impregnation guide roller, pressure roller, horizontal high-temperature drying tunnel, high-temperature pressure roller, traction roller, and winding device. A suitable concentration of suspension is added to the suspension trough to ensure that the liquid surface in the suspension trough covers all the impregnation guide roller groups, and the stirring system of the suspension trough is turned on.

[0051] ③ Start the traction device. During the heating process, the linear speed of the equipment is 0.2m / min.

[0052] ④ Immediately after traction begins, each module is rapidly heated, including all horizontal high-temperature drying tunnels, vertical high-temperature drying tunnels, and high-temperature pressure rollers. The temperature setting ranges for the horizontal high-temperature drying tunnels are 320℃~350℃ and 320℃~380℃, respectively. The temperature setting ranges for the vertical high-temperature drying tunnels are 300℃~320℃, 300℃~320℃, 320℃~340℃, and 320℃~340℃. The temperature setting range for the high-temperature pressure rollers is 200℃~250℃.

[0053] ⑤ Start all other units of the equipment, including various pressure rollers, guide rollers, traction winding devices, etc., and start winding after stabilization. After normal operation, the linear speed of the material is 2m / min~2.5m / min, which can prepare ZT7H3198P / PEEK carbon fiber fabric prepreg with a resin content of (40±4)%.

[0054] Example 2

[0055] A method for preparing high-performance thermoplastic polyaryletherketone wide-width fabric prepreg:

[0056] ①Preparation before start-up: Check whether the polyether ether ketone suspension, fabric and other raw materials, all units of the equipment and water, electricity and gas are in place and in good working order, and start feeding materials after all the preparation requirements are met.

[0057] ② A width of 1000mm and a surface density of 110g / m³ 2 The EW100 glass fiber fabric passes sequentially through the fiber fabric unwinding device, the stretching roller, the horizontal high-temperature drying tunnel, the guide roller, the impregnation guide roller, the vertical high-temperature drying tunnel, the guide roller, the vertical high-temperature drying tunnel, the impregnation guide roller, the pressure roller, the impregnation guide roller, the vertical high-temperature drying tunnel, the guide roller, the vertical high-temperature drying tunnel, the impregnation guide roller, the pressure roller, the horizontal high-temperature drying tunnel, the high-temperature pressure roller, the traction roller, and the winding device. Then, an appropriate amount of suspension of suitable concentration is added to the suspension tank to ensure that the liquid surface in the suspension tank covers all the impregnation guide roller groups, and the stirring system of the suspension tank is turned on.

[0058] ③ Start the traction device. During the heating process, the linear speed of the equipment is 0.2m / min.

[0059] ④ Immediately after traction begins, each module is rapidly heated, including all horizontal high-temperature drying tunnels, vertical high-temperature drying tunnels, and high-temperature pressure rollers. The temperature setting ranges for the horizontal and vertical high-temperature drying tunnels are 250℃~280℃ and 250℃~280℃, respectively. The temperature setting ranges for the vertical high-temperature drying tunnels are 300℃~320℃, 300℃~320℃, 320℃~340℃, and 320℃~340℃. The temperature setting range for the high-temperature pressure rollers is 100℃~120℃.

[0060] ⑤ Start all other units of the equipment, including various pressure rollers, guide rollers, traction winding devices, etc., and start winding after stabilization. After normal operation, the linear speed of the material is 2.5m / min to 3m / min, which can produce EW100 / PEEK glass fiber fabric prepreg with a resin content of (45±5%).

[0061] Example 3

[0062] A method for preparing high-performance thermoplastic polyaryletherketone wide-width fabric prepreg:

[0063] ①Preparation before start-up: Check whether the polyether ketone suspension, fabric and other raw materials, all units of the equipment and water, electricity and gas are in place and in good working order, and start feeding materials after all the preparation requirements are met.

[0064] ②The width is 1200mm and the areal density is 293g / m³. 2 The forged carbon fiber fabric CF8652 passes sequentially through the fiber fabric unwinding device, stretching roller, horizontal high-temperature drying tunnel, guide roller, impregnation guide roller, vertical high-temperature drying tunnel, guide roller, vertical high-temperature drying tunnel, impregnation guide roller, pressure roller, impregnation guide roller, vertical high-temperature drying tunnel, guide roller, vertical high-temperature drying tunnel, impregnation guide roller, pressure roller, horizontal high-temperature drying tunnel, high-temperature pressure roller, traction roller, and winding device. Then, an appropriate concentration of suspension liquid is added to the suspension glue tank to ensure that the liquid surface in the suspension glue tank covers all the impregnation guide roller groups, and the stirring system of the suspension glue tank is turned on.

[0065] ③ Start the traction device. During the heating process, the linear speed of the equipment is 0.1m / min.

[0066] ④ Immediately after traction begins, each module is rapidly heated, including all horizontal high-temperature drying tunnels, vertical high-temperature drying tunnels, and high-temperature pressure rollers. The temperature setting ranges for the horizontal high-temperature drying tunnels are 330℃~360℃ and 350℃~380℃, respectively. The temperature setting ranges for the vertical high-temperature drying tunnels are 320℃~340℃, 320℃~340℃, 340℃~360℃, and 340℃~360℃. The temperature setting range for the high-temperature pressure rollers is 250℃~280℃.

[0067] ⑤ Start all other units of the equipment, including various pressure rollers, guide rollers, traction winding devices, etc., and start winding after stabilization. After normal operation, the linear speed of the material is 2m / min~2.5m / min, which can produce CF8652 / PEKK carbon fiber fabric prepreg with a resin content of (40±3)%.

[0068] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the figures. Furthermore, for the sake of brevity, detailed descriptions of known methods and techniques are omitted here.

[0069] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art without departing from the scope of the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A method for preparing a thermoplastic polyaryletherketone wide-width fabric prepreg, characterized in that, The method includes the following steps: The fiber fabric is passed sequentially through the unwinding device (1), the first horizontal high-temperature furnace (2), the first impregnation guide roller (3), the first vertical high-temperature furnace (4), the second vertical high-temperature furnace (5), the second impregnation guide roller (6), the third impregnation guide roller (7), the third vertical high-temperature furnace (8), the fourth vertical high-temperature furnace (9), the fourth impregnation guide roller (10), the second horizontal high-temperature furnace (11), the high-temperature pressure roller (12), the traction roller (13), and the winding device (14); the first impregnation guide roller (3) and the second impregnation guide roller (6) are both located in the suspension in the first suspension trough (15), and the third impregnation guide roller (7) and the fourth impregnation guide roller (10) are both located in the suspension in the second suspension trough (16); After traction begins, all heating devices are heated to a higher temperature. After heating is completed, the fiber fabric is wound up.

2. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 1, characterized in that, The suspension is an aqueous suspension, comprising thermoplastic resin powder, emulsifier, dispersant, defoamer and water.

3. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 2, characterized in that, The thermoplastic resin powder is one or a mixture of at least two of the following: polyetheretherketone, polyetherketoneketone, polyethersulfone etherketoneketone, polyetherketone, modified polyethersulfoneketone, and modified polyetherketone.

4. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 3, characterized in that, The powder particle size D of the thermoplastic resin 50 The size is 5–30 μm.

5. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 2, characterized in that, The content of thermoplastic resin in the suspension is 5-30%, and the thermal decomposition temperature of other components, excluding thermoplastic resin, does not exceed 300°C.

6. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 1, characterized in that, The fiber fabric is one of carbon fiber fabric, glass fiber fabric, quartz fiber fabric, or organic fiber fabric.

7. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 6, characterized in that, The weight range of the fiber fabric is 20–400 g / m². 2 .

8. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 1, characterized in that, After normal operation, the linear velocity of the material is 0.5 to 10 m / min.

9. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 1, characterized in that, The drying tunnel operating temperature of the first horizontal high-temperature furnace and the second horizontal high-temperature furnace is 250-450℃.

10. The method for preparing the thermoplastic polyaryletherketone wide-width fabric prepreg according to claim 1, characterized in that, The drying tunnel operating temperature of the first vertical high-temperature furnace and the second vertical high-temperature furnace is 250-450℃, and the drying tunnel operating temperature of the third vertical high-temperature furnace and the fourth vertical high-temperature furnace is 200-400℃.

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