Aluminum foil composite material with hard surface

Abstract

The utility model relates to an aluminum foil composite material with a hard surface, which is characterized in that an aluminum foil outer layer is an aluminum foil with holes uniformly distributed in an array, the inner part of the aluminum foil outer layer is combined on a rock wool outer layer through an acrylate adhesive layer, and the lower part of the rock wool outer layer is sewed on a glass wool outer layer in a latticed manner by adopting glass fiber high-temperature lines; the glass wool outer layer is sewn on the aluminum silicate wool middle layer in a latticed mode through glass fiber high-temperature lines, the aluminum silicate wool middle layer is combined on the aerogel inner layer through the organic silica gel layer, and the aerogel inner layer is combined on the glass fabric layer through the glass fiber adhesive tape. The material is simple in structure, the high strength of the outer layer can be effectively considered, and the overall strength can meet deformation coating use.

Description

Technical Field

[0001] This utility model relates to a composite material, specifically a surface hard aluminum foil composite material. Background Technology

[0002] In fireproof and heat-insulating materials, most existing materials use aluminum foil insulation as the outer layer and flexible composite flame-retardant material inside. However, the overall air permeability is poor, and the hardness of the outer aluminum foil is insufficient in many cases. In addition, there is a direct hardness difference between the aluminum foil and the inner layer, which affects the appearance and service life of the composite material when used to cover any shape or structure. Summary of the Invention

[0003] This invention provides a surface-hard aluminum foil composite material with a simple structure that can effectively balance the high strength of the outer layer and the overall strength that can meet the requirements for deformation coating.

[0004] The technical solution adopted by this utility model is: a surface-hardened aluminum foil composite material, including an outer aluminum foil layer, characterized in that: the outer aluminum foil layer is an array of evenly distributed perforated aluminum foil, the inner layer of the outer aluminum foil layer is bonded to a rock wool outer layer by an acrylic ester adhesive layer, the rock wool outer layer is then connected to the glass wool outer layer by a glass fiber high-temperature wire mesh, the glass wool outer layer is then connected to the aluminum silicate cotton middle layer by a glass fiber high-temperature wire mesh, the aluminum silicate cotton middle layer is bonded to the aerogel inner layer by an organosilicon layer, and the aerogel inner layer is bonded to the fiberglass cloth layer by glass fiber tape.

[0005] The outer layer of glass wool is sewn to the outer layer of rock wool and the middle layer of aluminum silicate wool in a grid-like misalignment.

[0006] The aluminum foil outer layer is bonded to the rock wool outer layer by an acrylate adhesive layer through hot pressing.

[0007] The aluminum silicate cotton middle layer is hot-pressed onto the aerogel inner layer via an organosilicone layer.

[0008] The aerogel inner layer is bonded to the fiberglass cloth layer by heat pressing with fiberglass tape.

[0009] The diameter of the opening in the outer layer of the aluminum foil is not greater than the thickness of the aluminum foil.

[0010] The center-to-center spacing of the aluminum foil perforation array is greater than 5 times the perforation diameter.

[0011] The aluminum foil is a reinforced aluminum foil.

[0012] The hardness of the outer layer of aluminum foil is greater than that of the outer layer of rock wool, the hardness of the outer layer of rock wool is greater than that of the middle layer of aluminum silicate wool, the hardness of the middle layer of aluminum silicate wool is greater than that of the outer layer of glass wool, and the hardness of the outer layer of glass wool is greater than that of the inner layer of aerogel.

[0013] This invention considers the performance requirements of the hardness and covering strength of the outer aluminum foil and incorporates an array of perforations to ensure a certain degree of air permeability. Inside, multiple layers of fiberglass cloth with varying hardness are sequentially arranged, with the hardness of the outer two layers decreasing sequentially. A middle layer of aluminum silicate cotton is installed between the outer glass wool layer and the inner aerogel layer, where the hardness gradually decreases. This multi-layered structure, characterized by strong outer layers and weak inner layers, reinforced middle layers, and minimal inner layers, effectively improves the appearance quality when covering different shapes while meeting the overall strength requirements of the composite material. Furthermore, the combination of multi-layer adhesive hot pressing and grid-like staggered stitching further enhances the overall composite quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Outer layer of aluminum foil; 2. Outer layer of rock wool; 3. Outer layer of glass wool; 4. Middle layer of aluminum silicate wool; 5. Inner layer of aerogel; 6. Fiberglass cloth layer; 7. Acrylic adhesive layer; 8. Silicone layer. Detailed Implementation

[0016] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0017] Figure 1 As shown: A surface-hardened aluminum foil composite material includes an outer aluminum foil layer 1, an outer rock wool layer 2, an outer glass wool layer 3, an aluminum silicate wool middle layer 4, an inner aerogel layer 5, a fiberglass cloth layer 6, an acrylic adhesive layer 7, and an organic silicone layer 8.

[0018] An array of perforations is formed on the outer aluminum foil layer 1. The outer aluminum foil layer 1 is then hot-pressed to the outer rock wool layer 2 via an acrylic adhesive layer 7. Below the outer rock wool layer 2, a high-temperature fiberglass mesh is sewn onto the outer glass wool layer 3. The outer glass wool layer 3 is then hot-pressed onto the middle aluminum silicate wool layer 4 via a high-temperature fiberglass mesh. The middle aluminum silicate wool layer 4 is then hot-pressed onto the inner aerogel layer 5 via an silicone rubber layer 8. The inner aerogel layer 5 is then bonded to the fiberglass cloth layer 6 via fiberglass tape. The outer aluminum foil layer has a higher hardness than the outer rock wool layer, the outer rock wool layer has a higher hardness than the middle aluminum silicate wool layer, the middle aluminum silicate wool layer has a higher hardness than the outer glass wool layer, and the outer glass wool layer has a higher hardness than the inner aerogel layer.

[0019] Based on this embodiment, the upper and lower layers of the glass wool outer layer can be staggered with the outer layer of rock wool and the middle layer of aluminum silicate wool, respectively.

[0020] Based on this embodiment, the diameter of the aluminum foil openings in the outer layer is no greater than the thickness of the aluminum foil, and the center-to-center spacing of the aluminum foil opening array is greater than 5 times the opening diameter, in order to balance breathability and the overall hardness of the outer layer of aluminum foil.

[0021] In this embodiment, the aluminum foil can be replaced with reinforced aluminum foil.

Claims

1. A surface-hardened aluminum foil composite material, comprising an outer aluminum foil layer, characterized in that: The outer layer of the aluminum foil is an array of evenly distributed perforated aluminum foil. The inner layer of the aluminum foil is bonded to the outer layer of rock wool with an acrylic ester adhesive layer. The outer layer of rock wool is then connected to the outer layer of glass wool with a high-temperature glass fiber mesh. The outer layer of glass wool is then connected to the middle layer of aluminum silicate wool with a high-temperature glass fiber mesh. The middle layer of aluminum silicate wool is bonded to the inner layer of aerogel with an organic silicone layer. The inner layer of aerogel is then bonded to the fiberglass cloth layer with glass fiber tape.

2. The surface-hardened aluminum foil composite material according to claim 1, characterized in that: The outer layer of glass wool is sewn to the outer layer of rock wool and the middle layer of aluminum silicate wool in a grid-like misalignment.

3. The surface-hardened aluminum foil composite material according to claim 1, characterized in that: The aluminum foil outer layer is bonded to the rock wool outer layer by an acrylate adhesive layer through hot pressing.

4. The surface-hardened aluminum foil composite material according to claim 1, characterized in that: The aluminum silicate cotton middle layer is hot-pressed onto the aerogel inner layer via an organosilicone layer.

5. The surface-hardened aluminum foil composite material according to claim 1, characterized in that: The aerogel inner layer is bonded to the fiberglass cloth layer by heat pressing with fiberglass tape.

6. The surface-hardened aluminum foil composite material according to claim 1, characterized in that: The diameter of the opening in the outer layer of the aluminum foil is not greater than the thickness of the aluminum foil.

7. A surface-hardened aluminum foil composite material according to claim 1 or 5, characterized in that: The center-to-center spacing of the aluminum foil perforation array is greater than 5 times the perforation diameter.

8. The surface-hardened aluminum foil composite material according to claim 1, characterized in that: The aluminum foil is a reinforced aluminum foil.

9. The surface-hardened aluminum foil composite material according to claim 1, characterized in that: The hardness of the outer layer of aluminum foil is greater than that of the outer layer of rock wool, the hardness of the outer layer of rock wool is greater than that of the middle layer of aluminum silicate wool, the hardness of the middle layer of aluminum silicate wool is greater than that of the outer layer of glass wool, and the hardness of the outer layer of glass wool is greater than that of the inner layer of aerogel.

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