Marine light flame-retardant composite material wave-absorbing structure

Abstract

The utility model discloses a marine light flame-retardant composite material wave-absorbing structure which comprises a composite material structural member which further comprises ferrite wave-absorbing putty, a glass fiber flame-retardant layer, a carbon fiber structural layer and a honeycomb interlayer. The ferrite wave-absorbing putty is positioned on the surface of the composite material structural member and is used for providing wave-absorbing capability; carbon fiber structure layers are fixed to the two surfaces of the honeycomb interlayer, and the carbon fiber structure layers and the honeycomb interlayer are main bearing supporting structures in the composite material structural part. And the glass fiber flame-retardant layer is positioned on the outer side of the carbon fiber structure layer. The light flame-retardant composite material wave-absorbing structure for the ship is light in weight, the main body is the carbon fiber composite material and the honeycomb sandwich structure, compared with an aluminum alloy structure, the weight is reduced by more than 50%, the dead weight of a ship body can be reduced in a limited mode, and the performance of the ship is improved; the cable has anti-corrosion and flame-retardant properties and is more suitable for complex and severe working conditions on the sea; the structure is simple, the forming process is mature, and the wave-absorbing performance is excellent.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite material molding, and in particular relates to a marine lightweight flame-retardant composite material wave-absorbing structure. Background Art

[0002] With the continuous improvement of performance requirements for modern ships, the requirements for stealth performance, flame retardancy and weight reduction of materials for ship surface structure coverings are becoming increasingly higher. Metal materials are not only heavy and have poor stealth performance, but also have high corrosion resistance requirements. The application of conventional composite materials can effectively reduce the weight of the hull, but does not have flame retardancy and radar absorbing properties.

[0003] Therefore, a lightweight flame-retardant composite material absorbing structure is developed, which not only has better corrosion resistance and can meet the requirements of use in harsh marine environments, but is also flame-retardant and has weight reduction and wave-absorbing functions.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a marine lightweight flame-retardant composite material wave-absorbing structure, which can meet the use requirements in harsh marine environments, is flame-retardant and has weight-reducing and wave-absorbing functions.

[0006] In order to achieve the above-mentioned object, a specific embodiment of the utility model provides a marine lightweight flame-retardant composite material absorbing structure, including a composite material structural member, wherein the composite material structural member further includes a ferrite absorbing putty, a glass fiber flame-retardant layer, a carbon fiber structural layer and a honeycomb interlayer;

[0007] Ferrite absorbing putty is located on the surface of the composite material structure to provide absorbing capability;

[0008] Carbon fiber structural layers are fixed on both surfaces of the honeycomb sandwich, and the carbon fiber structural layer and the honeycomb sandwich are the main load-bearing support structures inside the composite material structural component;

[0009] The glass fiber flame retardant layer is located on the outside of the carbon fiber structural layer, and the glass fiber flame retardant layer is a flame retardant and anti-corrosion structure inside the composite material structural part.

[0010] In one or more embodiments of the present invention, an adhesive film is further included, and the carbon fiber structure layer and the honeycomb interlayer are bonded together by the adhesive film.

[0011] In one or more embodiments of the present invention, the ferrite absorbing putty is coated on the surface of the composite material structure.

[0012] In one or more embodiments of the present invention, the glass fiber flame retardant layer and the carbon fiber structural layer are both prepregs.

[0013] In one or more embodiments of the present invention, the glass fiber flame retardant layer includes a glass fiber unidirectional tape and a flame retardant resin.

[0014] In one or more embodiments of the present invention, the carbon fiber structural layer adopts T700 grade fiber prepreg.

[0015] In one or more embodiments of the present invention, the composite material structural component is integrally formed by compression molding.

[0016] In one or more embodiments of the present invention, the composite material structural member is fixed to the outer surface of the hull by means of adhesive or screw connection.

[0017] In one or more embodiments of the present invention, the thickness ratio between the ferrite absorbing putty and the glass fiber flame retardant layer is 1:1-2.

[0018] In one or more embodiments of the present invention, the thickness ratio between the carbon fiber structural layer and the honeycomb interlayer is 1:2-4.

[0019] Compared with the prior art, the marine lightweight flame-retardant composite material wave-absorbing structure of the utility model has the following advantages:

[0020] (1) Lightweight. The main body is made of carbon fiber composite material and honeycomb sandwich structure. Compared with aluminum alloy structure, the weight is reduced by more than 50%, which can reduce the weight of the hull to a certain extent and improve the performance of the ship;

[0021] (2) With anti-corrosion and flame retardant properties, it is more suitable for complex and harsh working conditions at sea;

[0022] (3) Simple structure, mature molding process, and excellent wave absorbing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a cross-sectional view of a marine lightweight flame-retardant composite material wave-absorbing structure in one embodiment of the utility model;

[0025] Figure 2This is a structural diagram of a marine lightweight flame-retardant composite material wave-absorbing structure in one embodiment of the utility model.

[0026] Description of main reference numerals:

[0027] 10. Composite material structural parts; 11. Ferrite absorbing putty; 12. Glass fiber flame retardant layer; 13. Carbon fiber structural layer; 14. Honeycomb interlayer. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] like Figure 1 and Figure 2 As shown, a lightweight flame-retardant composite material absorbing structure for ships in one embodiment of the utility model includes a composite material structural member 10, and the composite material structural member 10 includes a ferrite absorbing putty 11, a glass fiber flame-retardant layer 12, a carbon fiber structural layer 13, a honeycomb interlayer 14 and an adhesive film.

[0030] The ferrite absorbing putty 11 is located on the surface of the composite material structural member 10, and is used to provide absorbing capability for the composite material structural member 10 as a whole; carbon fiber structural layers 13 are fixed to both surfaces of the honeycomb interlayer 14, and the carbon fiber structural layer 13 and the honeycomb interlayer 14 are the main load-bearing structures inside the composite material structural member 10, providing support for other structures; the glass fiber flame retardant layer 12 is located on the outside of the carbon fiber structural layer 13, and the glass fiber flame retardant layer 12 is the main flame retardant structure and anti-corrosion structure inside the composite material structural member 10.

[0031] Specifically, the composite structural component 10 is formed by a compression molding process as a whole, the carbon fiber structural layer 13 and the honeycomb interlayer 14 are bonded by adhesive film, the glass fiber flame retardant layer 12 and the carbon fiber structural layer 13 are both prepregs, and the ferrite absorbing putty 11 is coated on the outer surface of the composite structural component 10 after compression molding. The overall composite structural component 10 is fixed to the outer surface of the hull by gluing and screwing, which plays a role in absorbing waves and flame retardancy.

[0032] Preferably, the glass fiber flame retardant layer 12 is a glass fiber unidirectional tape plus a flame retardant resin, which serves as the outer insulation layer of the composite material structural member 10 and can prevent the internal carbon fiber structural layer 13 from burning. At the same time, the glass fiber flame retardant layer 12 can prevent the carbon fiber structural layer 13 from directly contacting the hull metal and causing electrochemical corrosion, thereby playing an anti-corrosion role.

[0033] Preferably, the carbon fiber structural layer 13 is made of T700 grade fiber prepreg, and the internal filler is a honeycomb sandwich 14, which has better structural strength and reduces weight.

[0034] Preferably, the thickness ratio between the ferrite absorbing putty 11 and the glass fiber flame retardant layer 12 is 1:1-2.

[0035] Preferably, the thickness ratio between the carbon fiber structure layer 13 and the honeycomb sandwich layer 14 is 1:2-4.

[0036] The marine lightweight flame-retardant composite material wave-absorbing structure of the utility model is light in weight, and its main body is a carbon fiber composite material and a honeycomb sandwich structure. Compared with the aluminum alloy structure, it reduces the weight by more than 50%, which can reduce the deadweight of the hull to a limited extent and improve the performance of the ship; it has anti-corrosion and flame-retardant properties, and is more suitable for complex and harsh working conditions at sea; it has a simple structure, a mature molding process, and excellent wave-absorbing performance.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lightweight flame-retardant composite material wave-absorbing structure for ships, characterized in that: A composite material structural part is provided, wherein the composite material structural part further comprises: Ferrite absorbing putty, located on the surface of composite structural parts, is used to provide absorbing ability; Honeycomb sandwich, both surfaces of which are fixed with carbon fiber structural layers, the carbon fiber structural layers and honeycomb sandwich are the main load-bearing support structures inside the composite material structural component; The glass fiber flame retardant layer is located on the outside of the carbon fiber structural layer, and the glass fiber flame retardant layer is a flame retardant and corrosion-resistant structure inside the composite material structural part.

2. A marine lightweight flame-retardant composite material wave-absorbing structure according to claim 1, characterized in that: It also includes an adhesive film, and the carbon fiber structure layer and the honeycomb interlayer are bonded together by the adhesive film.

3. The marine lightweight flame-retardant composite material wave-absorbing structure according to claim 1, characterized in that: The ferrite absorbing putty is coated on the surface of the composite material structural part.

4. The marine lightweight flame-retardant composite material wave-absorbing structure according to claim 1, characterized in that: The glass fiber flame retardant layer and the carbon fiber structural layer are both prepregs.

5. A marine lightweight flame-retardant composite material wave-absorbing structure according to claim 4, characterized in that: The glass fiber flame retardant layer comprises a glass fiber unidirectional tape and a flame retardant resin.

6. A marine lightweight flame-retardant composite material wave-absorbing structure according to claim 4, characterized in that: The carbon fiber structural layer adopts T700 grade fiber prepreg.

7. The marine lightweight flame-retardant composite wave-absorbing structure according to claim 1, characterized in that: The composite material structural component is integrally formed by compression molding.

8. The marine lightweight flame-retardant composite material wave-absorbing structure according to claim 1, characterized in that: The composite material structural member is fixed to the outer surface of the hull by means of adhesive connection or screw connection.

9. The marine lightweight flame-retardant composite material wave-absorbing structure according to claim 1, characterized in that: The thickness ratio between the ferrite absorbing putty and the glass fiber flame retardant layer is 1:1-2.

10. The marine lightweight flame-retardant composite material wave-absorbing structure according to claim 1, characterized in that: The thickness ratio between the carbon fiber structural layer and the honeycomb interlayer is 1:2-4.

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