High-temperature-resistant and corrosion-resistant aluminum-plastic composite foil

Abstract

The utility model provides a high-temperature-resistant corrosion-resistant aluminum-plastic composite foil, which belongs to the technical field of aluminum-plastic composite foils and comprises a base film, a corrosion-resistant layer is mounted at the top of the base film and comprises composite hot melt adhesives, the composite hot melt adhesives are arranged on the upper side and the lower side of the base film and are made of ethylene-vinyl acetate copolymers, and the aluminum-plastic composite foils are made of high-temperature-resistant corrosion-resistant aluminum-plastic composite foils. The plastic film is arranged on the top of the composite hot melt adhesive and made of polyethylene, the back adhesive layer is arranged on the top of the plastic film, the aluminum foil is arranged on the top of the back adhesive layer, the smooth layer is arranged on the surface of the aluminum foil, and the anti-corrosion layer is arranged on the surface of the smooth layer. And a surface treatment layer is arranged on the surface of the anti-corrosion layer. Through the arrangement of the corrosion-resistant layer, the aluminum-plastic composite foil has higher high-temperature resistance, can keep stable physical and chemical properties within a certain temperature range, has good corrosion resistance, and can effectively resist corrosion of acid, alkali and other chemical substances.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-plastic composite foil, in particular to a high-temperature resistant and corrosion-resistant aluminum-plastic composite foil. Background Art

[0002] Aluminum foil composite film is the most commonly used composite roll film, usually containing pure aluminum and aluminum-plated aluminum. Aluminum foil has a wide range of uses, such as: aviation food packaging, ordinary meat packaging, cigarette packaging, etc. Aluminum foil is quite significant in construction applications. It is pasted on the surface of thermal insulation materials to make it more convenient and clean during construction, especially the aesthetics reaches a new height.

[0003] The existing aluminum foil composite film does not have a high temperature resistant and anti-corrosion layer added on its surface, which results in the aluminum-plastic composite foil being unable to resist high temperature and corrosion. In a high temperature environment, the aluminum-plastic composite foil may soften, deform or melt, lose its original structural stability, and thus cannot play an effective packaging protection role. In a humid or corrosive environment, the plastic layer is easily corroded, damaged or aged, and thus cannot effectively isolate external moisture, oxygen or corrosive substances, making the packaging susceptible to corrosion or deterioration. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a high temperature resistant and corrosion resistant aluminum-plastic composite foil which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The invention comprises a base film, an anti-corrosion layer is installed on the top of the base film, and the anti-corrosion layer comprises:

[0007] A composite hot melt adhesive, wherein the composite hot melt adhesive is disposed on the upper side of the base film and is made of ethylene vinyl acetate copolymer;

[0008] A plastic film, which is arranged on the top of the composite hot melt adhesive and is made of polyethylene;

[0009] A back adhesive layer, wherein the back adhesive layer is arranged on the top of the plastic film, and an aluminum foil is arranged on the top of the back adhesive layer;

[0010] A smooth layer is arranged on the surface of the aluminum foil, an anti-corrosion layer is arranged on the surface of the smooth layer, and a surface treatment layer is arranged on the surface of the anti-corrosion layer.

[0011] In an embodiment of the present invention, the back adhesive layer includes a silicone adhesive layer, a polytetrafluoroethylene adhesive layer is arranged at the bottom of the silicone adhesive layer, and a polyester adhesive layer is arranged at the bottom of the polytetrafluoroethylene adhesive layer.

[0012] In an embodiment of the present utility model, the smooth layer includes a polyimide layer, a fluoroplastic layer is disposed at the bottom of the polyimide layer, and a polytetrafluoroethylene layer is disposed at the bottom of the fluoroplastic layer.

[0013] In one embodiment of the utility model, the anti-corrosion layer includes a high-temperature corrosion-resistant coating, a corrosion-resistant rubber layer is arranged at the bottom of the high-temperature corrosion-resistant coating, a high-temperature resistant adhesive layer is arranged at the bottom of the corrosion-resistant adhesive layer, and a high-temperature resistant anti-corrosion rubber layer is arranged at the bottom of the high-temperature resistant adhesive layer.

[0014] In one embodiment of the utility model, the surface treatment layer includes a ceramic coating, a silicone resin layer is arranged at the bottom of the ceramic coating, a flame retardant layer is arranged at the bottom of the silicone resin layer, and an anti-oxidation layer is arranged at the bottom of the flame retardant layer.

[0015] In an embodiment of the present invention, an oxidation treatment layer is provided on the surface of the surface treatment layer, and the oxidation treatment layer is made of aluminum oxide, chromium oxide and silicon oxide.

[0016] In an embodiment of the present invention, the base film is made of a polytetrafluoroethylene aluminum foil composite film, a composite foil is arranged on the inner side of the base film, the composite foil includes a metal foil layer, and a plastic layer is arranged at the bottom of the metal foil layer.

[0017] In an embodiment of the present invention, an adhesive layer is disposed at the bottom of the plastic layer, and a functional layer is disposed at the bottom of the adhesive layer.

[0018] The utility model provides a high temperature resistant and corrosion resistant aluminum-plastic composite foil, and its beneficial effects include:

[0019] 1. Through the setting of the anti-corrosion layer, the aluminum-plastic composite foil has high high temperature resistance and can maintain stable physical and chemical properties within a certain temperature range. This allows it to be used in high temperature environments, such as in baking food, manufacturing electronic products or in industrial heating equipment. It has good anti-corrosion properties and can effectively resist corrosion from acids, alkalis and other chemicals, which allows it to be used in some corrosive environments, such as in chemical plants, marine engineering or food processing industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1It is a schematic diagram of the overall structure provided by the implementation method of the utility model;

[0022] Figure 2 A schematic diagram of the anti-corrosion layer structure provided by an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the composite foil structure provided by the embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the adhesive layer structure provided by the embodiment of the utility model;

[0025] Figure 5 A schematic diagram of the smooth layer structure provided by an embodiment of the utility model;

[0026] Figure 6 A schematic diagram of the anti-corrosion layer structure provided for an embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the surface treatment layer structure provided in an embodiment of the utility model.

[0028] In the figure: 1, base film; 2, anti-corrosion layer; 201, composite hot melt adhesive; 202, plastic film; 203, adhesive layer; 204, aluminum foil; 205, smooth layer; 206, anti-corrosion layer; 207, surface treatment layer; 2031, silicone adhesive layer; 2032, polytetrafluoroethylene adhesive layer; 2033, polyester adhesive layer; 2051, polyimide layer; 2052, fluoroplastic layer; 2053, polytetrafluoroethylene layer ; 2061, high temperature corrosion resistant coating; 2062, corrosion resistant adhesive layer; 2063, high temperature resistant adhesive layer; 2064, high temperature resistant anti-corrosion adhesive layer; 2071, ceramic coating; 2072, silicone resin layer; 2073, flame retardant layer; 2074, antioxidant layer; 208, oxidation treatment layer; 3, composite foil; 301, metal foil layer; 302, plastic layer; 303, adhesive layer; 304, functional layer. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] Reference Figure 1-Figure 7The technical scheme provides a high temperature resistant and corrosion resistant aluminum-plastic composite foil, which includes a base film 1, an anti-corrosion layer 2 is installed on the top of the base film 1, and the anti-corrosion layer 2 includes a composite hot melt adhesive 201, and the composite hot melt adhesive 201 is arranged on the upper side of the base film 1. The composite hot melt adhesive 201 is made of ethylene vinyl acetate copolymer. Commonly used hot melt adhesives include ethylene vinyl acetate copolymer hot melt adhesive, polypropylene hot melt adhesive, etc. Some additives such as antioxidants, antioxidants, preservatives, etc. can be added to the composite hot melt adhesive 201 to enhance the high temperature resistance and corrosion resistance of the composite hot melt adhesive 201. The plastic film 202 is arranged on the top of the composite hot melt adhesive 201, and the plastic film 202 is made of polyethylene. The plastic film 202 has good flexibility and plasticity, can be effectively wrapped, and increases the strength and sealing of the composite film. In order to improve the performance of the composite film, some special additives are often added during the manufacturing process, such as antistatic agents, UV protection agents, etc. The adhesive layer 203 is arranged on the top of the plastic film 202, and the top of the adhesive layer 203 is provided with aluminum foil 204. The aluminum foil 204 is a metal material with good high temperature resistance and corrosion resistance. It can effectively isolate the influence of external moisture, light and odor on the internal items, and has certain fire resistance. The smooth layer 205 is arranged on the surface of the aluminum foil 204, and the surface of the smooth layer 205 is provided with an anti-corrosion layer 20 6. The surface of the anti-corrosion layer 206 is provided with a surface treatment layer 207. The back adhesive layer 203 includes a silicone adhesive layer 2031. The silicone adhesive layer 2031 has the characteristics of high temperature resistance and corrosion resistance, and can maintain adhesion performance under high temperature environment. The bottom of the silicone adhesive layer 2031 is provided with a polytetrafluoroethylene adhesive layer 2032. The polytetrafluoroethylene adhesive layer 2032 is a material with excellent high temperature resistance and corrosion resistance, and can maintain stable performance under high temperature environment. The bottom of the polytetrafluoroethylene adhesive layer 2032 is provided with a polyester adhesive layer 2033. The smooth layer 205 includes a polyimide layer 2051. The polyimide layer 2051 is a high-performance polyester with excellent high temperature stability and corrosion resistance. A high-performance polymer has a higher glass transition temperature and a lower thermal expansion coefficient, and can maintain stability in a high-temperature environment. A fluoroplastic layer 2052 is arranged at the bottom of the polyimide layer 2051. The fluoroplastic layer 2052 has excellent high-temperature resistance and corrosion resistance, can maintain a smooth and non-stick surface in a high-temperature environment, and has excellent electrical insulation performance and chemical stability. A polytetrafluoroethylene layer 2053 is arranged at the bottom of the fluoroplastic layer 2052. The polytetrafluoroethylene layer 2053 is a polymer with excellent high-temperature resistance and corrosion resistance, can maintain a smooth and non-stick surface in a high-temperature environment, and has excellent electrical insulation performance and chemical stability.

[0032] Reference Figure 1-Figure 7Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the anti-corrosion layer 206 includes a high-temperature corrosion-resistant coating 2061, a corrosion-resistant adhesive layer 2062 is provided at the bottom of the high-temperature corrosion-resistant coating 2061, a high-temperature resistant adhesive layer 2063 is provided at the bottom of the corrosion-resistant adhesive layer 2062, and a high-temperature resistant anti-corrosion adhesive layer 2064 is provided at the bottom of the high-temperature resistant adhesive layer 2063. The high-temperature corrosion-resistant coating 2061 is composed of a polytetrafluoroethylene coating and has excellent corrosion resistance and high-temperature resistance. The corrosion-resistant adhesive layer 2062 can use a colloid material that is resistant to acid and alkali corrosion. Such as fluororubber, the high temperature resistant adhesive layer 2063 uses a high temperature resistant adhesive, such as polyimide, the high temperature resistant anti-corrosion adhesive layer 2064 uses a colloid material with high temperature resistance and corrosion resistance, such as organic silica gel, the surface treatment layer 207 includes a ceramic coating 2071, the ceramic coating 2071 can provide high temperature resistance and corrosion resistance, protect the surface of the aluminum-plastic composite foil from high temperature and corrosive media, the bottom of the ceramic coating 2071 is provided with a silicone resin layer 2072, the silicone resin layer 2072 has the characteristics of high temperature resistance and corrosion resistance, and can be on the surface of the aluminum-plastic composite foil A protective film is formed to improve its corrosion resistance. A flame retardant layer 2073 is arranged at the bottom of the silicone resin layer 2072. The aluminum-plastic composite foil is easy to burn at high temperatures. Adding the flame retardant layer 2073 can improve its high temperature resistance. An anti-oxidation layer 2074 is arranged at the bottom of the flame retardant layer 2073. The anti-oxidation layer 2074 can prevent the surface of the aluminum-plastic composite foil from being oxidized, thereby improving its high temperature resistance. The surface of the surface treatment layer 207 is provided with an oxidation treatment layer 208. The oxidation treatment layer 208 is made of aluminum oxide, chromium oxide and silicon oxide. The base film 1 is made of a polytetrafluoroethylene aluminum foil composite film. A composite foil 3 is arranged on the inner side of the base film 1, and the composite foil 3 includes a metal foil layer 301, a plastic layer 302 is arranged at the bottom of the metal foil layer 301, an adhesive layer 303 is arranged at the bottom of the plastic layer 302, and the adhesive layer 303 is used to bond the aluminum foil layer and the plastic layer 302 together, so that the composite foil has good bonding performance and stability, and a functional layer 304 is arranged at the bottom of the adhesive layer 303. According to specific usage requirements, the composite foil can also add other functional layers 304, such as an antistatic layer, an anti-ultraviolet layer, a barrier layer, etc., to improve the performance of the composite foil.

[0033] Specifically, the working process or working principle of the high temperature resistant and corrosion resistant aluminum-plastic composite foil is as follows: the oxidation treatment layer 208 is made of aluminum oxide, chromium oxide and silicon oxide, and the oxidation treatment layer 208 can be coated or deposited on the surface of the aluminum-plastic composite foil by different methods, so as to improve its high temperature resistance and corrosion resistance. The surface treatment layer 207 includes a ceramic coating 2071, and the ceramic coating 2071 can provide high temperature resistance and corrosion resistance, and protect the surface of the aluminum-plastic composite foil from being eroded by high temperature and corrosive media. The silicone resin layer 2072 has the characteristics of high temperature resistance and corrosion resistance, which can be A protective film is formed on the surface of the aluminum-plastic composite foil to improve its corrosion resistance. The aluminum-plastic composite foil is easy to burn at high temperatures. Adding a flame retardant layer 2073 can improve its high temperature resistance. The antioxidant layer 2074 can prevent the surface of the aluminum-plastic composite foil from oxidation and improve its high temperature resistance. The high temperature corrosion resistant coating 2061 is composed of a polytetrafluoroethylene coating, which has excellent corrosion resistance and high temperature resistance. The corrosion resistant adhesive layer 2062 can use a colloidal material that is resistant to acid and alkali corrosion, such as fluororubber, etc. The high temperature resistant adhesive layer 2063 uses a high temperature resistant adhesive, such as polyimide, etc. The high temperature resistant anti-corrosion adhesive layer 2062 064 uses colloid materials with high temperature resistance and corrosion resistance, such as organic silicone, etc. The polyimide layer 2051 is a high-performance polymer with excellent high temperature stability and corrosion resistance, with a high glass transition temperature and a low thermal expansion coefficient, and can maintain stability in a high temperature environment. The bottom of the polyimide layer 2051 is provided with a fluoroplastic layer 2052. The fluoroplastic layer 2052 has excellent high temperature resistance and corrosion resistance, and can maintain a smooth and non-stick surface in a high temperature environment. It also has excellent electrical insulation performance and chemical stability. The fluoroplastic layer 2052 A polytetrafluoroethylene layer 2053 is provided at the bottom. The polytetrafluoroethylene layer 2053 is a polymer with excellent high temperature resistance and corrosion resistance, which can maintain a smooth and non-stick surface in a high temperature environment, and has excellent electrical insulation performance and chemical stability. The silicone adhesive layer 2031 has the characteristics of high temperature resistance and corrosion resistance, and can maintain adhesion performance in a high temperature environment. A polytetrafluoroethylene adhesive layer 2032 is provided at the bottom of the silicone adhesive layer 2031. The polytetrafluoroethylene adhesive layer 2032 is a material with excellent high temperature resistance and corrosion resistance, which can maintain stable performance in a high temperature environment.

Claims

1. A high temperature resistant and corrosion resistant aluminum-plastic composite foil, comprising a base film (1), characterized in that: An anti-corrosion layer (2) is installed on the top of the base film (1), and the anti-corrosion layer (2) comprises: A composite hot melt adhesive (201), wherein the composite hot melt adhesive (201) is arranged on the upper side of the base film (1), and the composite hot melt adhesive (201) is made of ethylene vinyl acetate copolymer; A plastic film (202), wherein the plastic film (202) is arranged on top of the composite hot melt adhesive (201), and the plastic film (202) is made of polyethylene; A back adhesive layer (203), the back adhesive layer (203) is arranged on the top of the plastic film (202), and an aluminum foil (204) is arranged on the top of the back adhesive layer (203); A smooth layer (205) is provided on the surface of the aluminum foil (204), an anti-corrosion layer (206) is provided on the surface of the smooth layer (205), and a surface treatment layer (207) is provided on the surface of the anti-corrosion layer (206).

2. The high temperature resistant and corrosion resistant aluminum-plastic composite foil according to claim 1, characterized in that: The back adhesive layer (203) comprises a silicone adhesive layer (2031), a polytetrafluoroethylene adhesive layer (2032) is arranged at the bottom of the silicone adhesive layer (2031), and a polyester adhesive layer (2033) is arranged at the bottom of the polytetrafluoroethylene adhesive layer (2032).

3. The high temperature resistant and corrosion resistant aluminum-plastic composite foil according to claim 2, characterized in that: The smooth layer (205) comprises a polyimide layer (2051), a fluoroplastic layer (2052) is arranged at the bottom of the polyimide layer (2051), and a polytetrafluoroethylene layer (2053) is arranged at the bottom of the fluoroplastic layer (2052).

4. The high temperature resistant and corrosion resistant aluminum-plastic composite foil according to claim 3, characterized in that: The anti-corrosion layer (206) comprises a high-temperature corrosion-resistant coating (2061), a corrosion-resistant adhesive layer (2062) is arranged at the bottom of the high-temperature corrosion-resistant coating (2061), a high-temperature resistant adhesive layer (2063) is arranged at the bottom of the corrosion-resistant adhesive layer (2062), and a high-temperature resistant anti-corrosion adhesive layer (2064) is arranged at the bottom of the high-temperature resistant adhesive layer (2063).

5. The high temperature resistant and corrosion resistant aluminum-plastic composite foil according to claim 4, characterized in that: The surface treatment layer (207) comprises a ceramic coating (2071), a silicone resin layer (2072) is arranged at the bottom of the ceramic coating (2071), a flame retardant layer (2073) is arranged at the bottom of the silicone resin layer (2072), and an anti-oxidation layer (2074) is arranged at the bottom of the flame retardant layer (2073).

6. The high temperature resistant and corrosion resistant aluminum-plastic composite foil according to claim 5, characterized in that: The surface of the surface treatment layer (207) is provided with an oxidation treatment layer (208), and the oxidation treatment layer (208) is made of aluminum oxide, chromium oxide and silicon oxide.

7. The high temperature resistant and corrosion resistant aluminum-plastic composite foil according to claim 1, characterized in that: The base film (1) is made of a polytetrafluoroethylene-aluminum foil composite film, a composite foil (3) is arranged on the inner side of the base film (1), the composite foil (3) comprises a metal foil layer (301), and a plastic layer (302) is arranged at the bottom of the metal foil layer (301).

8. The high temperature resistant and corrosion resistant aluminum-plastic composite foil according to claim 7, characterized in that: An adhesive layer (303) is disposed at the bottom of the plastic layer (302), and a functional layer (304) is disposed at the bottom of the adhesive layer (303).

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