Aluminum foil glass fiber flame-retardant high-temperature-resistant self-adhesive composite film

By combining aluminum foil fiberglass cloth composite film with acrylic resin adhesive, the problems of flame retardancy, corrosion resistance and construction convenience of pipes are solved, achieving high-efficiency high-temperature flame retardant effect and stable bonding performance, which is suitable for marine pipelines.

CN224091816UActive Publication Date: 2026-04-07ANHUI YANHE NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing pipe materials have shortcomings in terms of flame retardancy, corrosion resistance, high temperature resistance, and ease of construction, especially when used in marine pipelines, posing safety hazards and complex construction issues.

Method used

A flame-retardant and high-temperature resistant self-adhesive composite film is formed by combining aluminum foil and fiberglass cloth with acrylic resin adhesive. The high-temperature retardant effect is improved by embedding flame-retardant soft ceramic, and the heat reflection property of aluminum foil is used to reduce the pipe temperature. Fiberglass cloth improves mechanical strength, and acrylic resin adhesive achieves self-adhesive bonding.

Benefits of technology

It improves the flame retardancy, high temperature resistance and construction efficiency of the pipes, reduces the pipe temperature, enhances mechanical strength and adhesion, and simplifies the construction process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an aluminum foil glass fiber flame-retardant high-temperature-resistant self-adhesion composite film which comprises a composite film glass fiber cloth layer arranged on the middle layer, and composite film heat-insulation aluminum foil layers are arranged on the two sides of the composite film glass fiber cloth layer. According to the composite film, the glass fabric and the aluminum foil are compounded, the flame-retardant high-temperature-resistant self-adhesion composite film is formed under the self-adhesion action of the acrylic resin glue with the high-temperature-resistant adhesion performance, the high-temperature-resistant and flame-retardant effects of the composite film are greatly improved by embedding the flame-retardant soft porcelain, and the aluminum foil can effectively block permeation of moisture, oxygen and other harmful substances; meanwhile, part of heat is reflected, the temperature of the surface of the pipeline is reduced, the glass fabric can remarkably improve the mechanical strength and heat resistance of the composite material, the composite material can be kept stable in the high-temperature environment of the ship pipeline, the high-temperature-resistant acrylic resin glue enables the material to have self-adhesion performance and can be directly adhered to the surface of the ship pipeline, the construction process is simplified, and the construction cost is reduced. The application efficiency is improved, and good bonding performance can still be kept in a high-temperature environment.
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Description

Technical Field

[0001] This utility model relates to the field of flame retardant film technology, specifically to an aluminum foil and glass fiber flame retardant high temperature resistant self-adhesive composite film. Background Technology

[0002] Currently, pipes are mainly divided into two categories: plastic pipes and metal pipes. Plastic pipes generally use PE pipes and metal-reinforced PE composite pipes. They have the problem of being non-flame-retardant; once leaked or in case of fire, they will burn rapidly, resulting in poor safety performance. Metal pipes, while having advantages such as high pressure resistance, good rigidity, and resistance to deformation, suffer from poor corrosion resistance and short service life. Both types of pipes present problems such as inconvenience in emergency repairs in practical applications. For example, the water pipe disclosed in patent CN112223854A is obtained by grafting composite materials between layers, which can improve the cross-linking degree of the inner and outer pipes, but it suffers from problems such as easy brittleness and reduced flexibility and impact strength. Another example is the steel wire mesh reinforced corrugated pipe disclosed in patent CN113502011A, which includes a polyethylene inner pipe, a first hot melt adhesive layer, a steel wire mesh layer, a second hot melt adhesive layer, and a polyethylene outer pipe. However, it suffers from poor adhesion strength between the steel wire mesh layer and the inner and outer pipes, and poor weather resistance of the inner and outer pipes.

[0003] Conventional flame-retardant membranes for pipelines typically involve covering the pipeline with flame-retardant organic materials and metal mesh. However, ordinary metal mesh is not heat-resistant and is prone to breakage, while the flame-retardant effect of organic materials is not ideal and has the opposite effect, hindering heat dissipation in ship pipelines. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing an aluminum foil-fiberglass flame-retardant, high-temperature resistant, self-adhesive composite film. The composite film combines high-strength, high-temperature resistant, and corrosion-resistant fiberglass cloth with aluminum foil, which possesses excellent barrier and heat-reflective properties. Under the self-adhesive action of a high-temperature resistant acrylic resin adhesive, a flame-retardant, high-temperature resistant, self-adhesive composite film is formed. The embedded flame-retardant soft ceramic significantly enhances the high-temperature flame-retardant effect of the composite film. The aluminum foil effectively blocks the penetration of moisture, oxygen, and other harmful substances while reflecting some heat, reducing the surface temperature of the pipe. The fiberglass cloth significantly improves the mechanical strength and heat resistance of the composite material, enabling it to remain stable in the high-temperature environment of ship pipelines. The high-temperature resistant acrylic resin adhesive gives the material self-adhesive properties, allowing direct adhesion to the surface of ship pipelines, simplifying the construction process, improving application efficiency, and maintaining good adhesion even in high-temperature environments.

[0005] To achieve the objective of this utility model, the technical solution adopted is as follows:

[0006] A flame-retardant and high-temperature resistant self-adhesive composite film made of aluminum foil and fiberglass includes a composite film fiberglass cloth layer disposed in the middle layer, composite film heat-insulating aluminum foil layers disposed on both sides of the composite film fiberglass cloth layer, a composite film self-adhesive layer disposed on the outer side of the upper composite film heat-insulating aluminum foil layer, and a composite film printing layer disposed on the outer side of the lower composite film heat-insulating aluminum foil layer; a composite film release paper layer disposed on the outer side of the composite film self-adhesive layer, and a composite film flame-retardant soft ceramic layer disposed in the middle of the composite film fiberglass cloth layer.

[0007] As a preferred technical solution, the thickness of the composite film fiberglass cloth layer is set to 0.12 mm, and the thickness of the composite film fiberglass cloth layer is greater than or equal to the thickness of the composite film heat insulation aluminum foil layer.

[0008] As a preferred technical solution, the thickness of the composite film heat-insulating aluminum foil is set to 0.03 mm, and the thickness of the composite film heat-insulating aluminum foil layer is less than or equal to the thickness of the composite film self-adhesive layer.

[0009] As a preferred technical solution, the thickness of the self-adhesive layer of the composite film is set to 0.04 mm, and the thickness of the self-adhesive layer of the composite film is greater than or equal to the thickness of the release paper layer of the composite film.

[0010] As a preferred technical solution, the thickness of the composite film release paper layer is less than or equal to the thickness of the composite film printing layer, and the thickness of the composite film release paper layer is greater than or equal to the thickness of the composite film heat insulation aluminum foil layer or the composite film flame retardant soft ceramic layer.

[0011] As a preferred technical solution, the thickness of the composite film fiberglass cloth layer is greater than or equal to the sum of the thicknesses of the composite film heat insulation aluminum foil layer, the composite film self-adhesive layer, the composite film release paper layer, and the composite film flame-retardant soft ceramic layer, and is less than or equal to the sum of the thicknesses of the composite film heat insulation aluminum foil layer, the composite film printing layer, the composite film self-adhesive layer, the composite film release paper layer, and the composite film flame-retardant soft ceramic layer.

[0012] As a preferred technical solution, the thickness of the self-adhesive layer of the composite film is greater than or equal to the sum of the thicknesses of the heat-insulating aluminum foil layer and the flame-retardant soft ceramic layer of the composite film, and less than or equal to the sum of the thicknesses of the heat-insulating aluminum foil layer, the release paper layer, and the flame-retardant soft ceramic layer of the composite film.

[0013] As a preferred technical solution, the thickness of the composite film flame-retardant soft ceramic layer is less than or equal to the thickness of the composite film heat-insulating aluminum foil layer, the thickness of the composite film fiberglass cloth layer on both sides of the composite film flame-retardant soft ceramic layer is the same, and the thickness of the composite film heat-insulating aluminum foil layer on the outer side of the two composite film fiberglass cloth layers is the same.

[0014] This utility model provides an aluminum foil and fiberglass flame-retardant, high-temperature resistant, self-adhesive composite film, which has the following advantages:

[0015] This invention relates to a composite membrane that combines high-strength, high-temperature resistant, and corrosion-resistant fiberglass cloth with aluminum foil, which has excellent barrier and heat-reflective properties. The membrane is then bonded together with a high-temperature resistant acrylic resin adhesive to form a flame-retardant, high-temperature resistant, self-adhesive composite membrane. The embedded flame-retardant soft ceramic significantly enhances the high-temperature flame-retardant effect of the composite membrane. The aluminum foil effectively blocks the penetration of moisture, oxygen, and other harmful substances while reflecting some heat, reducing the temperature of the pipe surface. The fiberglass cloth significantly improves the mechanical strength and heat resistance of the composite material, enabling it to remain stable in the high-temperature environment of ship pipelines. The high-temperature resistant acrylic resin adhesive gives the material self-adhesive properties, allowing it to be directly bonded to the surface of ship pipelines, simplifying the construction process, improving application efficiency, and maintaining good adhesion even in high-temperature environments, demonstrating excellent practical application results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the aluminum foil and glass fiber flame-retardant high-temperature resistant self-adhesive composite film of this utility model.

[0017] In the diagram: 1. Composite film fiberglass cloth layer; 2. Composite film heat insulation aluminum foil layer; 3. Composite film printing layer; 4. Composite film self-adhesive layer; 5. Composite film release paper layer; 6. Composite film flame-retardant soft ceramic layer. Detailed Implementation

[0018] The present invention will be further described and illustrated below with reference to specific embodiments and accompanying drawings.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Example 1

[0021] like Figure 1As shown, an aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film includes a composite film fiberglass cloth layer 1 disposed in the middle layer, composite film heat-insulating aluminum foil layers 2 disposed on both sides of the composite film fiberglass cloth layer 1, a composite film self-adhesive layer 4 disposed on the outer side of the upper composite film heat-insulating aluminum foil layer 2, and a composite film printing layer 3 disposed on the outer side of the lower composite film heat-insulating aluminum foil layer 2; a composite film release paper layer 5 disposed on the outer side of the composite film self-adhesive layer 4, and a composite film flame-retardant soft ceramic layer 6 disposed in the middle of the composite film fiberglass cloth layer 1.

[0022] Furthermore, the thickness of the composite membrane fiberglass cloth layer 1 is set to 0.12 mm, and the thickness of the composite membrane fiberglass cloth layer 1 is greater than or equal to the thickness of the composite membrane heat insulation aluminum foil layer 2.

[0023] Furthermore, the thickness of the composite film heat insulation aluminum foil layer 2 is set to 0.03 mm, and the thickness of the composite film heat insulation aluminum foil layer 2 is less than or equal to the thickness of the composite film self-adhesive layer 4.

[0024] Furthermore, the thickness of the self-adhesive layer 4 of the composite film is set to 0.04 mm, and the thickness of the self-adhesive layer 4 of the composite film is greater than or equal to the thickness of the release paper layer 5 of the composite film.

[0025] Furthermore, the thickness of the composite film release paper layer 5 is less than or equal to the thickness of the composite film printing layer 3, and the thickness of the composite film release paper layer 5 is greater than or equal to the thickness of the composite film heat insulation aluminum foil layer 2 or the composite film flame retardant soft ceramic layer 6.

[0026] Furthermore, the thickness of the composite film fiberglass cloth layer 1 is greater than or equal to the sum of the thicknesses of the composite film heat insulation aluminum foil layer 2, the composite film self-adhesive layer 4, the composite film release paper layer 5, and the composite film flame-retardant soft ceramic layer 6, and is less than or equal to the sum of the thicknesses of the composite film heat insulation aluminum foil layer 2, the composite film printing layer 3, the composite film self-adhesive layer 4, the composite film release paper layer 5, and the composite film flame-retardant soft ceramic layer 6.

[0027] Furthermore, the thickness of the self-adhesive layer 4 of the composite film is greater than or equal to the sum of the thicknesses of the heat-insulating aluminum foil layer 2 and the flame-retardant soft ceramic layer 6 of the composite film, and less than or equal to the sum of the thicknesses of the heat-insulating aluminum foil layer 2, the release paper layer 5 and the flame-retardant soft ceramic layer 6 of the composite film.

[0028] Furthermore, the thickness of the composite film flame-retardant soft ceramic layer 6 is less than or equal to the thickness of the composite film heat-insulating aluminum foil layer 2, the thickness of the composite film fiberglass cloth layer 1 on both sides of the composite film flame-retardant soft ceramic layer 6 is the same, and the thickness of the composite film heat-insulating aluminum foil layer 2 on the outer side of the two composite film fiberglass cloth layers 1 is the same.

[0029] First, two layers of 0.03mm thick aluminum foil and 0.12mm thick fiberglass cloth are laminated together using a coating process. Then, printing is performed on the surface of one layer of aluminum foil, and a 0.04mm thick layer of high-temperature resistant acrylic resin adhesive is coated on the surface of the other layer of aluminum foil to form the final aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite material. The composite material is then subjected to barrier performance testing, mechanical performance testing, high-temperature resistance testing, and adhesive performance testing.

[0030] Two layers of composite membrane thermal insulation aluminum foil 2, each 0.03 mm thick, are used. These layers possess excellent barrier and heat-reflective properties, effectively blocking the penetration of moisture, oxygen, and other harmful substances while reflecting some heat, thus reducing the temperature of the pipe surface. The composite membrane fiberglass cloth layer 1, with a thickness of 0.12 mm, possesses high strength, high temperature resistance, and corrosion resistance, significantly improving the mechanical strength and heat resistance of the composite material, ensuring its stability in the high-temperature environment of marine pipelines. A 0.04 mm thick layer of high-temperature resistant acrylic resin adhesive is coated onto one layer of aluminum foil, giving the material self-adhesive properties, allowing direct adhesion to the marine pipeline surface, simplifying the construction process and improving application efficiency. The acrylic resin adhesive maintains good adhesion even at high temperatures. Printing on the other aluminum foil layer allows for marking or labeling, enhancing the product's practicality and aesthetics. The composite membrane maintains stable performance at high temperatures, and the acrylic resin adhesive maintains excellent adhesion even at high temperatures. Example 2

[0031] The difference between this embodiment and Embodiment 1 is that:

[0032] like Figure 1 As shown, an aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film is provided. The flame-retardant soft ceramic layer 6 of the composite film is placed between the composite film fiberglass cloth layer 1 and the composite film heat-insulating aluminum foil layer 2. Organic flame retardant sheets are embedded inside the composite film fiberglass cloth layer 1, which greatly improves the flame-retardant effect of the composite film. Example 3

[0033] The difference between this embodiment and embodiments 1 and 2 is that:

[0034] like Figure 1 As shown, an aluminum foil and fiberglass flame-retardant high-temperature resistant self-adhesive composite film has a high-temperature resistant ceramic powder layer filled between the composite film fiberglass cloth layer 1 and the composite film heat insulation aluminum foil layer 2, which greatly improves the high-temperature resistance and flame-retardant effect of the composite film. The flame-retardant soft ceramic layer of the composite film is replaced with an organic flame retardant sheet that can release flame retardant, which greatly improves the flame-retardant effect of the composite film.

[0035] In this invention, a composite membrane is formed by combining high-strength, high-temperature resistant, and corrosion-resistant fiberglass cloth with aluminum foil, which has excellent barrier and heat-reflective properties. The self-adhesive action of a high-temperature resistant acrylic resin adhesive creates a flame-retardant, high-temperature resistant, self-adhesive composite membrane. Embedded flame-retardant soft ceramic significantly enhances the high-temperature flame-retardant effect of the composite membrane. The aluminum foil effectively blocks the penetration of moisture, oxygen, and other harmful substances while reflecting some heat, reducing the temperature of the pipe surface. The fiberglass cloth significantly improves the mechanical strength and heat resistance of the composite material, enabling it to remain stable in the high-temperature environment of ship pipelines. The high-temperature resistant acrylic resin adhesive gives the material self-adhesive properties, allowing it to be directly bonded to the surface of ship pipelines, simplifying the construction process, improving application efficiency, and maintaining good adhesion even in high-temperature environments, demonstrating excellent practical application results.

[0036] The technical solutions disclosed in the embodiments of this utility model have been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The descriptions of the embodiments above are only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A flame-retardant, high-temperature resistant, self-adhesive composite film made of aluminum foil and glass fiber, characterized in that: It includes a composite film fiberglass cloth layer (1) set in the middle layer, a composite film heat insulation aluminum foil layer (2) set on both sides of the composite film fiberglass cloth layer (1), a composite film self-adhesive layer (4) set on the outside of the upper composite film heat insulation aluminum foil layer (2), and a composite film printing layer (3) set on the outside of the lower composite film heat insulation aluminum foil layer (2). The composite film self-adhesive layer (4) is provided with a composite film release paper layer (5) on the outside, and the composite film fiberglass cloth layer (1) is provided with a composite film flame-retardant soft ceramic layer (6) in the middle.

2. The aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film according to claim 1, characterized in that: The thickness of the composite membrane fiberglass cloth layer (1) is set to 0.12 mm, and the thickness of the composite membrane fiberglass cloth layer (1) is greater than or equal to the thickness of the composite membrane heat insulation aluminum foil layer (2).

3. The aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film according to claim 2, characterized in that: The thickness of the composite film heat insulation aluminum foil layer (2) is set to 0.03 mm, and the thickness of the composite film heat insulation aluminum foil layer (2) is less than or equal to the thickness of the composite film self-adhesive layer (4).

4. The aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film according to claim 3, characterized in that: The thickness of the self-adhesive layer (4) of the composite film is set to 0.04 mm, and the thickness of the self-adhesive layer (4) of the composite film is greater than or equal to the thickness of the release paper layer (5) of the composite film.

5. The aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film according to claim 4, characterized in that: The thickness of the composite film release paper layer (5) is less than or equal to the thickness of the composite film printing layer (3), and the thickness of the composite film release paper layer (5) is greater than or equal to the thickness of the composite film heat insulation aluminum foil layer (2) or the composite film flame retardant soft ceramic layer (6).

6. The aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film according to claim 2, characterized in that: The thickness of the composite film fiberglass cloth layer (1) is greater than or equal to the sum of the thicknesses of the composite film heat insulation aluminum foil layer (2), the composite film self-adhesive layer (4), the composite film release paper layer (5), and the composite film flame-retardant soft ceramic layer (6), and is less than or equal to the sum of the thicknesses of the composite film heat insulation aluminum foil layer (2), the composite film printing layer (3), the composite film self-adhesive layer (4), the composite film release paper layer (5), and the composite film flame-retardant soft ceramic layer (6).

7. The aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film according to claim 4, characterized in that: The thickness of the self-adhesive layer (4) of the composite film is greater than or equal to the sum of the thicknesses of the heat-insulating aluminum foil layer (2) and the flame-retardant soft ceramic layer (6) of the composite film, and less than or equal to the sum of the thicknesses of the heat-insulating aluminum foil layer (2), the release paper layer (5) of the composite film, and the flame-retardant soft ceramic layer (6) of the composite film.

8. The aluminum foil-fiberglass flame-retardant and high-temperature resistant self-adhesive composite film according to claim 7, characterized in that: The thickness of the composite film flame-retardant soft ceramic layer (6) is less than or equal to the thickness of the composite film heat insulation aluminum foil layer (2). The thickness of the composite film fiberglass cloth layer (1) on both sides of the composite film flame-retardant soft ceramic layer (6) is the same, and the thickness of the composite film heat insulation aluminum foil layer (2) on the outside of the two composite film fiberglass cloth layers (1) is the same.

Citation Information

Patent Citations

  • Three-layer composite PVC / PEX water delivery pipe and preparation method thereof

    CN112223854A

  • Steel wire mesh framework corrugated pipe and preparation method thereof

    CN113502011A