Modified aluminum foil composite fabric

Abstract

The utility model discloses a modified aluminum foil composite fabric which comprises an aluminum-plated layer, an aluminum-plated layer, an aluminum-plated layer and an aluminum-plated layer, a first thin film; an aluminum foil layer; and a second film. According to the modified aluminum foil composite fabric, the sewable performance of the fabric is improved, and meanwhile the modified aluminum foil composite fabric has good attaching performance, radiant heat resistance and fire resistance.

Description

Technical Field

[0001] The utility model belongs to the field of aluminum foil composite fabrics, in particular to a modified aluminum foil composite fabric. Background Art

[0002] Currently, aluminum-containing fabrics on the market are generally aluminum-coated composite fabrics or aluminum foil composite fabrics. The temperature resistance of aluminum-coated composite fabrics does not exceed 200°C, and their high temperature resistance is poor. The existing aluminum foil composite fabrics have good temperature resistance, but poor bonding performance, radiation protection performance and sewing performance.

[0003] See also Figure 1 to Figure 3 The common aluminum foil composite fabric is a composite structure of an aluminum foil layer 1 plus a film 2, but the aluminum foil of this structure has poor brightness and poor reflection effect when it is on the surface; and poor fastness when the aluminum foil is used as the bonding surface. This structure can be formed into a composite fabric structure with a base fabric by connecting a flame-retardant and high-temperature resistant base fabric 4 on both sides through a high-temperature resistant glue layer 3. Among them, adding a base fabric on one side of the film 2 has good bonding fastness, but poor brightness and poor reflection effect; adding a base fabric on one side of the aluminum foil has better brightness and better reflection effect, but poor bonding fastness, and unstable heat resistance and flame retardancy. Summary of the invention

[0004] In order to solve technical problems such as the practicality of the tray structure in the prior art, the utility model aims to provide a modified aluminum foil composite fabric, which improves the sewing performance of the fabric and also has better fitting performance, anti-radiant heat performance and fire resistance performance.

[0005] In order to achieve the above object, the utility model provides a modified aluminum foil composite fabric, comprising:

[0006] Aluminum coating;

[0007] First film;

[0008] Aluminum foil layer; and

[0009] Second film.

[0010] As an embodiment, the first film is made of a FEP film layer, a high temperature resistant polyester film layer or a PA film layer.

[0011] As an embodiment, the second film is a FEP film layer, a high temperature resistant polyester film layer or a PA film layer.

[0012] As an embodiment, a base fabric layer is further provided on a side of the second film away from the aluminum foil layer.

[0013] As an implementation manner, the base fabric layer is a flame retardant and high temperature resistant base fabric layer.

[0014] As an implementation manner, the second film and the base fabric layer are connected via a connecting medium layer.

[0015] As an implementation manner, the connecting medium layer adopts a high temperature resistant glue layer.

[0016] As an implementation manner, the thickness of the aluminum plating layer ranges from 0.001 to 0.003 mm; the thickness of the first film and the second film is less than or equal to 0.025 mm; and the thickness of the aluminum foil layer ranges from 0.01 to 0.03 mm.

[0017] As an implementation manner, the thickness of the connecting medium layer is less than or equal to 0.01 mm.

[0018] The utility model adopts the above technical solution, so that it has the following beneficial effects:

[0019] In the utility model, an aluminum-plated layer is added to the aluminum foil layer to increase the brightness of the fabric and improve the heat radiation protection performance; a first film is arranged between the aluminum-plated layer and the aluminum foil layer to enhance the toughness of the aluminum foil structure and prevent the sewing perforation from becoming larger, thereby improving the sewing performance of the fabric. The second film ensures the easy lamination performance of the aluminum foil. The connecting medium layer is used to connect the second film and the base fabric layer. When the connecting medium layer adopts a high-temperature resistant glue layer, the effective connection between the second film and the base fabric layer can be guaranteed in a high-temperature environment. At the same time, the toughness of the base fabric layer is further improved through the cooperation of the first film and the second film. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figures 1 to 3 It is a schematic diagram of the structure of the aluminum foil composite fabric in the prior art.

[0022] Figure 4 This is a schematic structural diagram of a modified aluminum foil composite fabric according to Example 1 of the present application;

[0023] Figure 5 This is a schematic diagram of the structure of the modified aluminum foil composite fabric of Example 2 of the present application.

[0024] Description of Figure Numbers:

[0025] Figure 1 to Figure 3 :

[0026] 1-aluminum foil layer;

[0027] 2-film;

[0028] 3-High temperature resistant glue layer;

[0029] 4-Flame retardant and high temperature resistant base fabric;

[0030] Figure 4-5 :

[0031] 1-aluminum coating;

[0032] 2- first film;

[0033] 3-aluminum foil layer;

[0034] 4- second film;

[0035] 5-High temperature resistant glue layer;

[0036] 6-Flame retardant and high temperature resistant base fabric layer. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "connection" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1

[0041] See also Figure 4 A modified aluminum foil composite fabric according to a first embodiment of the present invention comprises: an aluminum-plated layer 1, a first film 2, an aluminum foil layer 3 and a second film 4 which are sequentially stacked and connected.

[0042] The first film 2 is made of FEP film layer, high temperature resistant polyester film layer or PA film layer.

[0043] The second film 4 is made of a FEP film layer, a high temperature resistant polyester film layer or a PA film layer.

[0044] In this embodiment, the first film 2 and the second film 4 are the same and are made of FEP film layers.

[0045] The thickness of the aluminum-plated layer 1 is in the range of 0.001 to 0.003 mm; the thickness of the first film 2 and the second film 4 is less than or equal to 0.025 mm; the thickness of the aluminum foil layer 3 is in the range of 0.01 to 0.03 mm. In this embodiment, the thickness of the aluminum-plated layer 1 is about 0.002 mm, the thickness of the first film 2 and the second film 4 is less than or equal to 0.025 mm, and the thickness of the aluminum foil layer 3 is 0.025 mm.

[0046] FEP stands for Fluorinated ethylene propylene, a class of chemical substances. FEP is a copolymer of tetrafluoroethylene and hexafluoropropylene. The crystal melting point of FEP is 304°C and the density is 2.15g / CC (grams per cubic centimeter). FEP can be applied to soft plastics, and its tensile strength, wear resistance and creep resistance are lower than many engineering plastics. It is chemically inert and has a low dielectric constant over a wide range of temperature and frequency. Its chemical resistance is similar to that of polytetrafluoroethylene, and it has excellent chemical resistance. Its electrical insulation properties are very similar to those of polytetrafluoroethylene. Its dielectric coefficient is almost unchanged from deep cooling to the highest operating temperature, and from 50Hz to 1010Hz ultra-high frequency, and is very low, only about 2.1. The dielectric loss tangent changes slightly with frequency, but not much with temperature. Its heat resistance is second only to polytetrafluoroethylene, and it can be used continuously in the temperature range of -85-+200°C. Even at the extreme conditions of -200℃ and +260℃, its performance does not deteriorate and it can be used for a short time. Except for reacting with fluorine element, molten alkali metal and chlorine trifluoride at high temperature, it will not be corroded when in contact with other chemicals.

[0047] In the utility model, the brightness of the fabric is increased and the heat radiation protection performance is improved by adding an aluminum-plated layer 1 on the aluminum foil layer 3; the toughness of the aluminum foil structure is enhanced by arranging a first film 2 between the aluminum-plated layer 1 and the aluminum foil layer 3, thereby preventing the sewing perforation from becoming larger, thereby improving the sewing performance of the fabric. The second film 4 ensures the easy lamination performance of the aluminum foil. At the same time, the toughness of the fabric is further improved by the cooperation of the first film 2 and the second film 4.

[0048] Example 2

[0049] See also Figure 5 The modified aluminum foil composite fabric of the second embodiment of the utility model has a structure that is basically the same as that of the first embodiment, except that a base fabric layer is further provided on the side of the second film 4 away from the aluminum foil layer 3, and the base fabric layer is a flame-retardant and high-temperature resistant base fabric layer 6.

[0050] The second film 4 and the base fabric layer are connected via a connecting medium layer, wherein the connecting medium layer is a high temperature resistant glue layer 5 .

[0051] The thickness of the connecting medium layer is less than or equal to 0.01 mm.

[0052] The connecting medium layer is used to connect the second film 4 and the base fabric layer. When the connecting medium layer adopts the high temperature resistant glue layer 5, the effective connection between the second film 4 and the base fabric layer can be ensured in a high temperature environment. The base fabric layer adopts the flame retardant and high temperature resistant base fabric layer 6 to ensure the flame retardant and high temperature resistant performance of the fabric.

[0053] Example 3

[0054] The modified aluminum foil composite fabric of the third embodiment of the present invention has a structure that is basically the same as that of the first embodiment, except that the first film 2 is made of a high-temperature resistant polyester film layer; and the second film 4 is made of a PA film layer.

[0055] The high temperature resistant polyester film layer has excellent physical properties, chemical properties, dimensional stability, transparency, and recyclability. It can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration, screen protection, optical grade mirror surface protection and other fields.

[0056] High temperature resistant polyester film is a packaging film with comprehensive performance. It has good transparency and gloss; good air tightness and fragrance retention; moderate moisture resistance, and its moisture permeability decreases at low temperatures. High temperature resistant polyester film has excellent mechanical properties, and its toughness is the best among all thermoplastics. Its tensile strength and impact strength are much higher than those of ordinary films; it has good strength and stable dimensions, and is suitable for secondary processing such as printing and paper bags. High temperature resistant polyester film also has excellent heat resistance, cold resistance, good chemical resistance and oil resistance.

[0057] PA material, namely polyamide, commonly known as nylon, is a synthetic polymer material widely used in fibers, engineering plastics and many other fields. Its basic structure and properties are that the molecular structure contains repeated amide groups (-CONH-), which form long chains through the polymerization reaction of carboxylic acids and amines. It has a high melting point and is a thermoplastic resin. At the same time, it also has excellent mechanical properties, such as high strength, good friction resistance, wear resistance, etc. In addition, PA material also has good heat resistance and chemical stability.

[0058] Example 4

[0059] The modified aluminum foil composite fabric of the fourth embodiment of the present invention has a structure that is basically the same as that of the first embodiment, except that the first film 2 is made of a high-temperature resistant polyester film layer; and the second film 4 is made of a FEP film layer.

[0060] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. A modified aluminum foil composite fabric, characterized in that: Includes cascaded connections: Aluminum coating; First film; Aluminum foil layer; and Second film.

2. The modified aluminum foil composite fabric according to claim 1, characterized in that: The first film is made of FEP film layer, high temperature resistant polyester film layer or PA film layer.

3. The modified aluminum foil composite fabric according to claim 1, characterized in that: The second film is made of FEP film layer, high temperature resistant polyester film layer or PA film layer.

4. The modified aluminum foil composite fabric according to claim 1, characterized in that: A base fabric layer is also provided on a side of the second film away from the aluminum foil layer.

5. The modified aluminum foil composite fabric according to claim 4, characterized in that: The base fabric layer is a flame retardant and high temperature resistant base fabric layer.

6. The modified aluminum foil composite fabric according to claim 4, characterized in that: The second film and the base fabric layer are connected via a connecting medium layer.

7. The modified aluminum foil composite fabric according to claim 6, characterized in that: The connecting medium layer is a high temperature resistant glue layer.

8. The modified aluminum foil composite fabric according to claim 1, characterized in that: The thickness of the aluminum plating layer ranges from 0.001 to 0.003 mm; the thickness of the first film and the second film is less than or equal to 0.025 mm; the thickness of the aluminum foil layer ranges from 0.01 to 0.03 mm.

9. The modified aluminum foil composite fabric according to claim 7, characterized in that: The thickness of the connecting medium layer is less than or equal to 0.01 mm.

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