Aluminum alloy decorative moulding and construction method thereof

Abstract

The invention relates to the field of building decoration, and discloses an aluminum alloy decoration line and a construction method thereof. The aluminum alloy decoration line comprises an aluminum alloy base material and a corrosion-resistant layer arranged on the outer side of the aluminum alloy base material. The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 50 to 70 parts of waterborne epoxy ester emulsion, 40 to 50 parts of organic silicon modified acrylic emulsion, 30 to 50 parts of filler, 2 to 6 parts of dispersing agent, 2 to 6 parts of defoaming agent, 2 to 6 parts of emulsifying agent, 10 to 20 parts of magnesium aluminum silicate inorganic gel and 40 to 60 parts of water. The aluminum alloy decoration line has good corrosion resistance, and the application requirements of the aluminum alloy decoration line in various fields can be met.

Description

Technical Field

[0001] The present application relates to the field of architectural decoration, and more specifically, to an aluminum alloy decorative line and a construction method thereof. Background Art

[0002] As a lightweight, high-strength metal material, aluminum alloy has been widely used in the field of architectural decoration. Aluminum alloy decorative lines not only have beautiful appearance, but also have excellent physical and chemical properties, such as good electrical conductivity, thermal conductivity and processing performance. However, aluminum alloy is prone to corrosion in certain environments, which seriously affects its service life and decorative effect. Therefore, improving the corrosion resistance of aluminum alloy decorative lines has become an important research direction.

[0003] Traditional aluminum alloy decorative lines are usually made of a single aluminum alloy material, and their corrosion resistance mainly depends on the alloy composition and microstructure of the aluminum alloy itself. However, with the deterioration of environmental conditions and the improvement of usage requirements, a single aluminum alloy material has been difficult to meet the growing demand for corrosion resistance. Therefore, people began to explore ways to improve the corrosion resistance of aluminum alloy decorative lines through surface treatment technology and alloying technology. For example, in terms of surface treatment technology, people have tried a variety of methods, such as anodizing, electroplating, chemical plating, spraying, etc. These methods can form a dense protective film on the surface of the aluminum alloy, thereby isolating the aluminum alloy from the contact with the corrosive medium, and achieving the purpose of improving corrosion resistance. However, these surface treatment technologies also have some problems, such as high cost, complex process, and certain impact on the environment. For another example, alloying technology improves the corrosion resistance of aluminum alloys by adjusting the alloy composition and microstructure of aluminum alloys. For example, adding an appropriate amount of magnesium, silicon, copper and other elements to aluminum alloys can form an alloy with excellent corrosion resistance. However, alloying technology also has certain limitations, such as the selection of alloy components and proportion control need to be precisely controlled, otherwise it may affect other properties of aluminum alloys.

[0004] In recent years, material composite technology has been widely used in various fields. Material composite technology is a method of combining different materials to form composite materials. Therefore, by combining aluminum alloy with other materials with excellent corrosion resistance, the corrosion resistance of aluminum alloy decorative lines can be significantly improved. Summary of the invention

[0005] The invention of this application aims to improve the corrosion resistance of aluminum alloy decorative lines. To this end, the present invention provides an aluminum alloy decorative line and a construction method thereof. The aluminum alloy decorative line prepared in this application has good corrosion resistance and can meet the application requirements of aluminum alloy decorative lines in various fields.

[0006] In order to achieve the above invention objectives, this application adopts the following technical solutions:

[0007] In a first aspect, the present application provides an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outside of the aluminum alloy substrate; the corrosion-resistant layer is prepared from the following raw materials in parts by weight: 50-70 parts of aqueous epoxy ester emulsion, 40-50 parts of silicone-modified acrylic emulsion, 30-50 parts of filler, 2-6 parts of dispersant, 2-6 parts of defoaming agent, 2-6 parts of emulsifier, 10-20 parts of magnesium aluminum silicate inorganic gel and 40-60 parts of water.

[0008] Furthermore, the aluminum alloy substrate is any one or a combination of 5052-H112, 5083-H112, 6061-T651, 7050-T7451, 7075-T651 and 2024-T351.

[0009] Furthermore, the filler includes any one or a combination of zinc phosphate, red iron powder, barium sulfate, talcum powder, silicon carbide and zinc oxide.

[0010] Furthermore, the filler is a mixture of zinc phosphate, red iron powder, barium sulfate and talcum powder. Calculated by weight, the ratio of zinc phosphate, red iron powder, barium sulfate and talcum powder is 1:(0.6-0.8):(1.2-1.4):(0.3-0.5).

[0011] Furthermore, the dispersant is any one or a combination of sodium acid, carboxylate, sulfate ester salt, and alkyl quaternary ammonium salt.

[0012] Furthermore, the defoamer is any one or a combination of silicone defoamers, polyether defoamers and natural oils.

[0013] Furthermore, the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate.

[0014] In a second aspect, the present application provides a method for preparing the aluminum alloy decorative line described in the first aspect, comprising the following steps:

[0015] S1, mixing part of the aqueous epoxy ester emulsion, part of the magnesium aluminum silicate inorganic gel and part of the filler, heating to 40-50°C, stirring evenly, then adding part of the dispersant, part of the defoamer, part of the emulsifier and part of the water, heating to 60-80°C, stirring evenly, to obtain component A;

[0016] S2, mixing part of the aqueous epoxy ester emulsion, the silicone-modified acrylic emulsion, part of the magnesium aluminum silicate inorganic gel and part of the filler, heating to 40-50° C., stirring evenly, then adding part of the dispersant, part of the defoamer, part of the emulsifier and part of the water, heating to 60-80° C., stirring evenly, to obtain component B;

[0017] S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

[0018] Furthermore, the method for preparing the aluminum alloy decorative line comprises the following steps:

[0019] S1, taking 40-50 parts of aqueous epoxy ester emulsion, 5-10 parts of magnesium aluminum silicate inorganic gel and 20-30 parts of filler, mixing, heating to 40-50°C, stirring evenly, then adding 1-3 parts of dispersant, 1-3 parts of defoamer, 1-3 parts of emulsifier and 20-30 parts of water, heating to 60-80°C, stirring evenly, to obtain component A;

[0020] S2, 10-20 parts of aqueous epoxy ester emulsion, 40-50 parts of silicone-modified acrylic emulsion, 5-10 parts of magnesium aluminum silicate inorganic gel and 10-20 parts of filler are mixed, heated to 40-50° C., stirred evenly, and then 1-3 parts of dispersant, 1-3 parts of defoamer, 1-3 parts of emulsifier and 20-30 parts of water are added, heated to 60-80° C., stirred evenly, to obtain component B;

[0021] S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

[0022] Furthermore, in step S3, component A and component B are applied to the aluminum alloy substrate by spraying or brushing.

[0023] Compared with the prior art, this application has the following beneficial effects:

[0024] (1) Excellent corrosion resistance: By adopting specific alloy components and advanced production processes, the aluminum alloy decorative lines exhibit extremely high corrosion resistance, effectively resisting the erosion of air, moisture and various chemicals, extending the service life of the product, reducing the maintenance cost and replacement frequency caused by corrosion, and bringing long-term economic benefits to users.

[0025] (2) Wide application adaptability: With its excellent corrosion resistance, the aluminum alloy decorative lines can adapt to a variety of complex and changing environmental conditions. Whether it is indoor decoration such as homes, hotels, shopping malls, or outdoor buildings such as curtain walls, eaves, awnings and other application scenarios, it can show good performance and meet the dual needs of beauty and durability in different fields.

[0026] (3) Easy maintenance, environmental protection and energy saving: Due to its strong corrosion resistance, daily maintenance is simple, reducing the frequency of cleaning and maintenance and the required materials, which is in line with the concept of modern green buildings. At the same time, aluminum alloy materials themselves can be recycled and reused, which is conducive to resource conservation and environmental protection.

[0027] In summary, the aluminum alloy decorative lines produced in this application not only improve the practicality and durability of the product, but also broaden its application areas, promote the development of green and sustainable decorative materials, and bring innovative solutions to the modern architecture and interior design industries. DETAILED DESCRIPTION

[0028] The technical scheme and effects of the present application are further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the invention, rather than to limit the invention.

[0029] Example 1

[0030] This embodiment discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0031] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 50 parts of aqueous epoxy ester emulsion, 40 parts of silicone-modified acrylic emulsion, 30 parts of filler, 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier, 10 parts of magnesium aluminum silicate inorganic gel and 40 parts of water.

[0032] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate and barium sulfate in a weight ratio of 1:1; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0033] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0034] S1, taking 40 parts of aqueous epoxy ester emulsion, 5 parts of magnesium aluminum silicate inorganic gel and 20 parts of filler, mixing, heating to 40°C, stirring evenly, then adding 1 part of dispersant, 1 part of defoamer, 1 part of emulsifier and 20 parts of water, heating to 60°C, stirring evenly, obtaining component A;

[0035] S2, 10 parts of water-based epoxy ester emulsion, 40 parts of silicone-modified acrylic emulsion, 5 parts of magnesium aluminum silicate inorganic gel and 10 parts of filler are mixed, heated to 40°C, stirred evenly, and then 1 part of dispersant, 1 part of defoamer, 1 part of emulsifier and 20 parts of water are added, heated to 60°C, stirred evenly, to obtain component B;

[0036] S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

[0037] Example 2

[0038] This embodiment discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0039] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 60 parts of aqueous epoxy ester emulsion, 45 parts of silicone-modified acrylic emulsion, 40 parts of filler, 4 parts of dispersant, 4 parts of defoamer, 4 parts of emulsifier, 15 parts of magnesium aluminum silicate inorganic gel and 50 parts of water.

[0040] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate and barium sulfate in a weight ratio of 1:1; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0041] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0042] S1, taking 45 parts of aqueous epoxy ester emulsion, 7.5 parts of magnesium aluminum silicate inorganic gel and 25 parts of filler, mixing, heating to 40°C, stirring evenly, then adding 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier and 25 parts of water, heating to 60°C, stirring evenly, to obtain component A;

[0043] S2, 15 parts of aqueous epoxy ester emulsion, 45 parts of silicone-modified acrylic emulsion, 7.5 parts of magnesium aluminum silicate inorganic gel and 15 parts of filler are mixed, heated to 40°C, stirred evenly, and then 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier and 25 parts of water are added, heated to 60°C, stirred evenly, to obtain component B;

[0044] S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

[0045] Example 3

[0046] This embodiment discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0047] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 70 parts of aqueous epoxy ester emulsion, 50 parts of silicone-modified acrylic emulsion, 50 parts of filler, 6 parts of dispersant, 6 parts of defoamer, 6 parts of emulsifier, 20 parts of magnesium aluminum silicate inorganic gel and 60 parts of water.

[0048] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate and barium sulfate in a weight ratio of 1:1; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0049] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0050] S1, taking 50 parts of aqueous epoxy ester emulsion, 10 parts of magnesium aluminum silicate inorganic gel and 30 parts of filler, mixing, heating to 40°C, stirring evenly, then adding 3 parts of dispersant, 3 parts of defoamer, 3 parts of emulsifier and 30 parts of water, heating to 60°C, stirring evenly, to obtain component A;

[0051] S2, taking 20 parts of water-based epoxy ester emulsion, 50 parts of silicone-modified acrylic emulsion, 10 parts of magnesium aluminum silicate inorganic gel and 20 parts of filler, mixing, heating to 40°C, stirring evenly, then adding 3 parts of dispersant, 3 parts of defoamer, 3 parts of emulsifier and 30 parts of water, heating to 60°C, stirring evenly, to obtain component B;

[0052] S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

[0053] Example 4

[0054] This embodiment discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0055] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 60 parts of aqueous epoxy ester emulsion, 45 parts of silicone-modified acrylic emulsion, 40 parts of filler, 4 parts of dispersant, 4 parts of defoamer, 4 parts of emulsifier, 15 parts of magnesium aluminum silicate inorganic gel and 50 parts of water.

[0056] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate, iron ore red powder, barium sulfate and talcum powder, and the ratio of zinc phosphate, iron ore red powder, barium sulfate and talcum powder is 1:0.6:1.2:0.3 by weight; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0057] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0058] S1, taking 45 parts of aqueous epoxy ester emulsion, 7.5 parts of magnesium aluminum silicate inorganic gel and 25 parts of filler, mixing, heating to 40°C, stirring evenly, then adding 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier and 25 parts of water, heating to 60°C, stirring evenly, to obtain component A;

[0059] S2, 15 parts of aqueous epoxy ester emulsion, 45 parts of silicone-modified acrylic emulsion, 7.5 parts of magnesium aluminum silicate inorganic gel and 15 parts of filler are mixed, heated to 40°C, stirred evenly, and then 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier and 25 parts of water are added, heated to 60°C, stirred evenly, to obtain component B;

[0060] S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

[0061] Example 5

[0062] This embodiment discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0063] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 60 parts of aqueous epoxy ester emulsion, 45 parts of silicone-modified acrylic emulsion, 40 parts of filler, 4 parts of dispersant, 4 parts of defoamer, 4 parts of emulsifier, 15 parts of magnesium aluminum silicate inorganic gel and 50 parts of water.

[0064] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate, iron ore red powder, barium sulfate and talcum powder, and the ratio of zinc phosphate, iron ore red powder, barium sulfate and talcum powder is 1:0.7:1.3:0.4 by weight; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0065] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0066] S1, taking 45 parts of aqueous epoxy ester emulsion, 7.5 parts of magnesium aluminum silicate inorganic gel and 25 parts of filler, mixing, heating to 40°C, stirring evenly, then adding 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier and 25 parts of water, heating to 60°C, stirring evenly, to obtain component A;

[0067] S2, 15 parts of aqueous epoxy ester emulsion, 45 parts of silicone-modified acrylic emulsion, 7.5 parts of magnesium aluminum silicate inorganic gel and 15 parts of filler are mixed, heated to 40°C, stirred evenly, and then 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier and 25 parts of water are added, heated to 60°C, stirred evenly, to obtain component B;

[0068] S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

[0069] Example 6

[0070] This embodiment discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0071] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 60 parts of aqueous epoxy ester emulsion, 45 parts of silicone-modified acrylic emulsion, 40 parts of filler, 4 parts of dispersant, 4 parts of defoamer, 4 parts of emulsifier, 15 parts of magnesium aluminum silicate inorganic gel and 50 parts of water.

[0072] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate, iron ore red powder, barium sulfate and talcum powder, and the ratio of zinc phosphate, iron ore red powder, barium sulfate and talcum powder is 1:0.8:1.4:0.5 by weight; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0073] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0074] S1, taking 45 parts of aqueous epoxy ester emulsion, 7.5 parts of magnesium aluminum silicate inorganic gel and 25 parts of filler, mixing, heating to 40°C, stirring evenly, then adding 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier and 25 parts of water, heating to 60°C, stirring evenly, to obtain component A;

[0075] S2, 15 parts of aqueous epoxy ester emulsion, 45 parts of silicone-modified acrylic emulsion, 7.5 parts of magnesium aluminum silicate inorganic gel and 15 parts of filler are mixed, heated to 40°C, stirred evenly, and then 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier and 25 parts of water are added, heated to 60°C, stirred evenly, to obtain component B;

[0076] S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

[0077] Comparative Example 1

[0078] This comparative example discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0079] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 50 parts of aqueous epoxy ester emulsion, 40 parts of silicone-modified acrylic emulsion, 30 parts of filler, 2 parts of dispersant, 2 parts of defoamer, 2 parts of emulsifier, 10 parts of magnesium aluminum silicate inorganic gel and 40 parts of water.

[0080] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate and barium sulfate in a weight ratio of 1:1; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0081] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0082] S1, mixing water-based epoxy ester emulsion, silicone-modified acrylic emulsion, magnesium aluminum silicate inorganic gel and filler, heating to 40°C, stirring evenly, then adding dispersant, defoamer, emulsifier and water, heating to 60°C, stirring evenly, to obtain component A;

[0083] S3, applying component A to an aluminum alloy substrate, and obtaining an aluminum alloy decorative line after curing.

[0084] Comparative Example 2

[0085] This comparative example discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0086] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 40 parts of aqueous epoxy ester emulsion, 20 parts of filler, 1 part of dispersant, 1 part of defoamer, 1 part of emulsifier, 5 parts of magnesium aluminum silicate inorganic gel and 20 parts of water.

[0087] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate and barium sulfate in a weight ratio of 1:1; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0088] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0089] S1, taking 40 parts of aqueous epoxy ester emulsion, 5 parts of magnesium aluminum silicate inorganic gel and 20 parts of filler, mixing, heating to 40°C, stirring evenly, then adding 1 part of dispersant, 1 part of defoamer, 1 part of emulsifier and 20 parts of water, heating to 60°C, stirring evenly, obtaining component A;

[0090] S3, applying component A to an aluminum alloy substrate, and obtaining an aluminum alloy decorative line after curing.

[0091] Comparative Example 3

[0092] This comparative example discloses an aluminum alloy decorative line, comprising: an aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate.

[0093] The corrosion-resistant layer is prepared from the following raw materials in parts by weight: 10 parts of aqueous epoxy ester emulsion, 40 parts of silicone-modified acrylic emulsion, 10 parts of filler, 1 part of dispersant, 1 part of defoamer, 1 part of emulsifier, 5 parts of magnesium aluminum silicate inorganic gel and 20 parts of water.

[0094] Among them, the aluminum alloy substrate is 5052-H112; the filler is a mixture of zinc phosphate and barium sulfate in a weight ratio of 1:1; the dispersant is a zinc carboxylate dispersant; the defoamer is LF-815 silicone defoamer; the emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate, and the mixing weight ratio of alkylphenol phosphate and acrylic polyether phosphate is 1:1.

[0095] The method for preparing the aluminum alloy decorative line comprises the following steps:

[0096] S1, 10 parts of water-based epoxy ester emulsion, 40 parts of silicone-modified acrylic emulsion, 5 parts of magnesium aluminum silicate inorganic gel and 10 parts of filler are mixed, heated to 40°C, stirred evenly, and then 1 part of dispersant, 1 part of defoamer, 1 part of emulsifier and 20 parts of water are added, heated to 60°C, stirred evenly, to obtain component A;

[0097] S2, applying component A to an aluminum alloy substrate, and obtaining an aluminum alloy decorative line after curing.

[0098] Performance Testing

[0099] The following tests were performed on the aluminum alloy decorative lines obtained in Examples 1-6 and Comparative Examples 1-3:

[0100] Water resistance: Tested in accordance with the method specified in GB / T 6739-2006;

[0101] Salt spray resistance: Tested according to the method specified in GB / T1771-2007;

[0102] Alkali resistance: 0.1mol / L KOH, 100h;

[0103] Acid resistance: 0.05mol / L H2SO4, 48h.

[0104] Water resistance Salt spray resistant Alkali resistance Acid resistance Example 1 No peeling or shedding No blistering, no rusting, no cracking, no peeling pass pass Example 2 No peeling or shedding No blistering, no rusting, no cracking, no peeling pass pass Example 3 No peeling or shedding No blistering, no rusting, no cracking, no peeling pass pass Example 4 No peeling or shedding No blistering, no rusting, no cracking, no peeling pass pass Example 5 No peeling or shedding No blistering, no rusting, no cracking, no peeling pass pass Example 6 No peeling or shedding No blistering, no rusting, no cracking, no peeling pass pass Comparative Example 1 Peeling, no shedding Slight blistering, rust spots, no cracking, no peeling Failed Failed Comparative Example 2 Peeling, slight shedding Blistering, rust spots, slight cracking, slight peeling Failed Failed Comparative Example 3 Peeling, slight shedding Blistering, rust spots, slight cracking, slight peeling Failed Failed

[0105] In summary, the aluminum alloy decorative lines produced in this application not only improve the practicality and durability of the product, but also broaden its application areas, promote the development of green and sustainable decorative materials, and bring innovative solutions to the modern architecture and interior design industries.

[0106] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An aluminum alloy decorative line, characterized in that: include: An aluminum alloy substrate and a corrosion-resistant layer arranged on the outer side of the aluminum alloy substrate; the corrosion-resistant layer is prepared from the following raw materials in parts by weight: 50-70 parts of aqueous epoxy ester emulsion, 40-50 parts of silicone-modified acrylic emulsion, 30-50 parts of filler, 2-6 parts of dispersant, 2-6 parts of defoamer, 2-6 parts of emulsifier, 10-20 parts of magnesium aluminum silicate inorganic gel and 40-60 parts of water.

2. The aluminum alloy decorative line according to claim 1, characterized in that: The aluminum alloy substrate is any one or a combination of 5052-H112, 5083-H112, 6061-T651, 7050-T7451, 7075-T651 and 2024-T351.

3. The aluminum alloy decorative line according to claim 1, characterized in that: The filler includes any one or a combination of zinc phosphate, red iron powder, barium sulfate, talcum powder, silicon carbide and zinc oxide.

4. The aluminum alloy decorative line according to claim 3, characterized in that: The filler is a mixture of zinc phosphate, iron oxide red powder, barium sulfate and talcum powder. Calculated by weight, the ratio of zinc phosphate, iron oxide red powder, barium sulfate and talcum powder is 1:(0.6-0.8):(1.2-1.4):(0.3-0.5).

5. The aluminum alloy decorative line according to claim 1, characterized in that: The dispersant is any one or a combination of sodium acid, carboxylate, sulfate ester salt, and alkyl quaternary ammonium salt.

6. The aluminum alloy decorative line according to claim 1, characterized in that: The defoamer is any one of an organosilicon defoamer, a polyether defoamer and a natural oil or fat or a combination of multiple thereof.

7. The aluminum alloy decorative line according to claim 1, characterized in that: The emulsifier is a composite emulsifier obtained by compounding alkylphenol phosphate and acrylic polyether phosphate.

8. The method for preparing the aluminum alloy decorative line according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, mixing part of the aqueous epoxy ester emulsion, part of the magnesium aluminum silicate inorganic gel and part of the filler, heating to 40-50°C, stirring evenly, then adding part of the dispersant, part of the defoamer, part of the emulsifier and part of the water, heating to 60-80°C, stirring evenly, to obtain component A; S2, mixing part of the aqueous epoxy ester emulsion, the silicone-modified acrylic emulsion, part of the magnesium aluminum silicate inorganic gel and part of the filler, heating to 40-50° C., stirring evenly, then adding part of the dispersant, part of the defoamer, part of the emulsifier and part of the water, heating to 60-80° C., stirring evenly, to obtain component B; S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

9. The method for preparing aluminum alloy decorative lines according to claim 8, characterized in that: The following steps are involved: S1, taking 40-50 parts of aqueous epoxy ester emulsion, 5-10 parts of magnesium aluminum silicate inorganic gel and 20-30 parts of filler, mixing, heating to 40-50°C, stirring evenly, then adding 1-3 parts of dispersant, 1-3 parts of defoamer, 1-3 parts of emulsifier and 20-30 parts of water, heating to 60-80°C, stirring evenly, to obtain component A; S2, 10-20 parts of aqueous epoxy ester emulsion, 40-50 parts of silicone-modified acrylic emulsion, 5-10 parts of magnesium aluminum silicate inorganic gel and 10-20 parts of filler are mixed, heated to 40-50° C., stirred evenly, and then 1-3 parts of dispersant, 1-3 parts of defoamer, 1-3 parts of emulsifier and 20-30 parts of water are added, heated to 60-80° C., stirred evenly, to obtain component B; S3, applying component A to the aluminum alloy substrate, and then applying component B after solidification, and obtaining aluminum alloy decorative lines after solidification.

10. The method for preparing aluminum alloy decorative lines according to claim 8, characterized in that: In step S3, component A and component B are applied to the aluminum alloy substrate by spraying or brushing.