High-modulus carbon fiber plate

By designing a multi-layer structure on the carbon fiber sheet, including a reinforcing layer, an impact-resistant sheet, and a heat insulation layer, and by setting a protective film on the surface, the problem of the single strength of existing carbon fiber sheets is solved, and better physical and chemical properties are achieved.

CN223918885UActive Publication Date: 2026-02-17TAIAN HONGFEI CARBON FIBER PROD CO LTD
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Patent Information

Application Number
CN202520400806.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-17
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Existing carbon fiber sheets have limited strength, lack impact resistance and surface protection, resulting in insufficient physical and chemical properties.

Method used

It adopts a multi-layer structure design, including carbon fiber sheet body, reinforcing layer, impact-resistant sheet and heat insulation layer, and a protective film on the surface. It is fixed and connected by adhesive. The reinforcing layer and impact-resistant sheet improve strength and impact resistance, while the heat insulation layer and protective film provide additional protection.

Benefits of technology

It enhances the overall strength, impact resistance, and surface protection of carbon fiber sheets, improves physical and chemical properties, enhances wear resistance and environmental performance, and reduces sensitivity to temperature changes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-modulus carbon fiber plate and belongs to the technical field of plates. The high-modulus carbon-carbon fiber plate comprises a carbon-carbon fiber plate body, mounting grooves are formed in the upper surface and the lower surface of the carbon-carbon fiber plate body, and a reinforcing layer and an anti-impact plate are sequentially arranged on the upper surface and the lower surface of the carbon-carbon fiber plate body from inside to outside. The carbon fiber plate body, the reinforcing layer and the impact-resistant plate are fixedly connected in sequence through an adhesive, and a heat insulation layer is arranged on the surface of the impact-resistant plate; under the cooperation of the reinforcing layer, the impact-resistant plate, the heat insulation layer and the protective film, the carbon fiber composite structure with a multi-layer framework is adopted, so that the carbon fiber composite plate has good strength, impact resistance and surface protection capability, and the problem that the plate in the market only has single strength performance is avoided; the physical and chemical properties of the carbon fiber plate are further enhanced, and the purpose of enhancing the properties is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of sheet technology, specifically, it relates to a high-modulus carbon fiber sheet. Background Technology

[0002] Carbon fiber is an emerging composite material. Due to its excellent properties such as high specific strength and high specific modulus, low coefficient of thermal expansion, high temperature resistance, corrosion resistance, creep resistance, and self-lubrication, it has been widely used in various military and civilian fields such as aerospace, nuclear energy equipment, and transportation. High modulus carbon fiber sheet is a composite material with carbon fiber as reinforcement and resin as matrix. The "high modulus" here refers to its high elastic modulus, that is, the material has a strong ability to resist deformation when subjected to external force. In addition, carbon fiber also has the characteristics of fiber flexibility and weavability, which can be further combined with other materials to improve the physical and chemical properties of the material.

[0003] Current carbon fiber sheets are generally composed of a single layer of carbon fiber structure, which can only highlight a single strength, and therefore do not have other good strength, impact resistance and surface protection capabilities. As a result, the sheets on the market can only highlight a single performance of strength, which further reduces the physical and chemical properties of carbon fiber sheets. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high modulus carbon fiber sheet that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a high-modulus carbon fiber sheet, including a carbon fiber sheet body, wherein mounting grooves are provided on both the upper and lower surfaces of the carbon fiber sheet body, and a reinforcing layer and an impact-resistant sheet are sequentially provided on the upper and lower surfaces of the carbon fiber sheet body from the inside to the outside. The carbon fiber sheet body, the reinforcing layer and the impact-resistant sheet are sequentially fixedly connected by an adhesive, and a heat insulation layer is provided on the surface of the impact-resistant sheet, and a protective film is provided on the surface of the heat insulation layer.

[0006] Preferably, the reinforcing layer is composed of a reinforcing plate and a boss. The top of the reinforcing plate has several positioning grooves, and the boss is fixed directly above the reinforcing plate. The size of the boss is adapted to the inner wall of the mounting groove.

[0007] Preferably, the bottom of the impact-resistant plate is fixedly connected with a plurality of plugs, the plugs being adapted to the internal dimensions of the positioning groove.

[0008] Preferably, the reinforcing layer is woven from transverse fibers and longitudinal fibers, and the transverse fibers and longitudinal fibers are arranged in a cross-shaped mesh design.

[0009] Preferably, the protective film is made of removable paper with a pattern on it.

[0010] Preferably, the surface of the protective film is coated with a photocatalytic coating.

[0011] Preferably, the heat insulation layer is made of nano-aerogel heat insulation film.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0013] This high-modulus carbon fiber sheet, through the combination of reinforcing layers, impact-resistant sheets, heat insulation layers, and protective films, adopts a multi-layered carbon fiber composite structure, giving it excellent strength, impact resistance, and surface protection capabilities. This avoids the situation where sheets on the market only highlight a single performance aspect like strength, further enhancing the physical and chemical properties of the carbon fiber sheet to achieve the goal of performance enhancement. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a structural schematic diagram of a high-modulus carbon fiber sheet proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the reinforcing layer structure of a high-modulus carbon fiber sheet proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the impact-resistant plate structure of a high-modulus carbon fiber plate proposed in this utility model.

[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the reinforcing layer and impact-resistant plate of a high-modulus carbon fiber plate proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the transverse and longitudinal fiber structure of a high-modulus carbon fiber sheet proposed in this utility model.

[0020] In the figure: 1. Carbon fiber sheet body; 11. Mounting groove; 2. Reinforcing layer; 21. Reinforcing sheet; 211. Transverse fiber filament; 212. Longitudinal fiber filament; 22. Boss; 23. Positioning groove; 3. Impact-resistant sheet; 31. Connector; 4. Heat insulation layer; 5. Protective film; 6. Photocatalytic coating. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model. Example

[0022] Reference Figures 1-5 A high-modulus carbon fiber sheet includes a carbon fiber sheet body 1. The upper and lower surfaces of the carbon fiber sheet body 1 are provided with mounting grooves 11. The upper and lower surfaces of the carbon fiber sheet body 1 are provided with a reinforcing layer 2 and an impact-resistant sheet 3 from the inside to the outside. The carbon fiber sheet body 1, the reinforcing layer 2 and the impact-resistant sheet 3 are fixedly connected to each other by an adhesive. The surface of the impact-resistant sheet 3 is provided with a heat insulation layer 4. The surface of the heat insulation layer 4 is provided with a protective film 5. The protective film 5 is made of release paper with a pattern on it. The surface of the protective film 5 is coated with a photocatalytic coating 6. The heat insulation layer 4 is a nano-aerogel heat insulation film.

[0023] In this invention, the carbon fiber sheet body 1 is reinforced with multiple layers including a reinforcing layer 2, an impact-resistant sheet 3, a heat insulation layer 4, and a protective film 5. These layers provide different protective properties, thereby enhancing the physical and chemical properties of the carbon fiber sheet. The reinforcing layer 2 significantly strengthens the overall strength of the sheet, the impact-resistant sheet 3 greatly enhances its impact resistance, the heat insulation layer 4 protects the mechanical properties of the core carbon fiber sheet body 1, minimizing deformation caused by external low or high temperatures, and the protective film 5 greatly increases the wear resistance of the entire carbon fiber sheet while improving its overall aesthetics. The heat insulation layer 4, made of nano-aerogel heat insulation film, provides excellent heat insulation. The photocatalytic coating 6 on the surface of the protective film 5, using nano-sized titanium dioxide, adsorbs harmful gases, eliminates odors, and provides anti-fouling effects, giving the sheet excellent environmental performance. Example

[0024] Reference Figure 2 , Figure 3 and Figure 4 Similar to Example 1, but further: the reinforcing layer 2 is composed of a reinforcing plate 21 and a boss 22. The top of the reinforcing plate 21 is provided with several positioning grooves 23. The boss 22 is fixed on the top of the reinforcing plate 21. The size of the boss 22 is adapted to the inner wall of the mounting groove 11. Several plugs 31 are fixedly connected to the bottom of the impact-resistant plate 3. The plugs 31 are adapted to the internal size of the positioning groove 23. The reinforcing layer 2 is woven from transverse fiber filaments 211 and longitudinal fiber filaments 212. The transverse fiber filaments 211 and longitudinal fiber filaments 212 adopt a cross-shaped mesh design.

[0025] With the addition of the bottom boss 22 on the reinforcing plate 21, the carbon carbon fiber plate body 1 can be positioned during installation by embedding the boss 22 into the mounting groove 11. This reduces the difficulty of installation and improves work efficiency. It also further enhances the overall strength of the carbon carbon fiber plate body 1. The positioning groove 23 facilitates the insertion of the bottom connector 31 of the impact-resistant plate 3, further reducing the difficulty of installation between the reinforcing layer 2 and the impact-resistant plate 3. This improves the efficiency of multi-layer plate pressing. The arrangement of transverse fiber filaments 211 and longitudinal fiber filaments 212 increases the strength of the plate. The cross-shaped mesh arrangement of the transverse fiber filaments 211 and longitudinal fiber filaments 212 creates multiple interlacing points and multiple support points, thereby increasing the strength of the plate.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A high-modulus carbon fiber sheet, comprising a carbon fiber sheet body (1), characterized in that, The carbon carbon fiber sheet body (1) has mounting grooves (11) on both the upper and lower surfaces. The upper and lower surfaces of the carbon carbon fiber sheet body (1) are provided with a reinforcing layer (2) and an impact-resistant sheet (3) from the inside to the outside. The carbon carbon fiber sheet body (1), the reinforcing layer (2) and the impact-resistant sheet (3) are connected in sequence by an adhesive. The surface of the impact-resistant sheet (3) is provided with a heat insulation layer (4) and a protective film (5) is provided on the surface of the heat insulation layer (4).

2. The high-modulus carbon fiber sheet according to claim 1, characterized in that, The reinforcing layer (2) is composed of a reinforcing plate (21) and a boss (22). The top of the reinforcing plate (21) is provided with several positioning grooves (23). The boss (22) is fixed directly above the reinforcing plate (21). The size of the boss (22) is compatible with the inner wall of the mounting groove (11).

3. The high-modulus carbon fiber sheet according to claim 1, characterized in that, The bottom of the impact-resistant plate (3) is fixedly connected with several plugs (31), and the plugs (31) are adapted to the internal dimensions of the positioning groove (23).

4. The high-modulus carbon fiber sheet according to claim 1, characterized in that, The reinforcing layer (2) is made of transverse fiber filaments (211) and longitudinal fiber filaments (212), respectively, and the transverse fiber filaments (211) and the longitudinal fiber filaments (212) adopt a cross-shaped mesh design.

5. The high-modulus carbon fiber sheet according to claim 1, characterized in that, The protective film (5) is made of a detachable paper with a pattern on it.

6. The high-modulus carbon fiber sheet according to claim 1, characterized in that, The protective film (5) is coated with a photocatalytic coating (6).

7. The high-modulus carbon fiber sheet according to claim 1, characterized in that, The insulation layer (4) uses a nano-aerogel insulation film.