Polyester powder coating with high concentration distribution and uniform particle size

Abstract

The utility model relates to a polyester powder coating with high concentration and uniform particle size distribution, which comprises a wood board, an aluminum veneer layer is arranged on the surface of the wood board, a long adhesive layer is coated on the surface of the aluminum veneer layer, a titanium-chromium brown coating is sprayed on the upper surface of the long adhesive layer, a short adhesive layer is arranged at the upper end of the titanium-chromium brown coating, and the short adhesive layer is coated on the surface of the aluminum veneer layer. A short molecular chain polyester surface layer is sprayed on the upper surface of the short adhesive layer; a silicon dioxide layer is arranged in the short molecular chain polyester surface layer, and the silicon dioxide layer is a spherical silicon dioxide layer; the titanium-chromium brown coating comprises a resin layer, a graphene layer is arranged at the upper end of the resin layer, the low-viscosity resin layer is adopted, the phenomenon that grinding overheat adheres to a screen can be effectively prevented, and the short-molecular-chain polyester surface layer is adopted, so that the grinding difficulty can be reduced, and the distribution degree of the powder particle size can be concentrated.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coatings, in particular to a polyester powder coating with highly concentrated distribution and uniform particle size. Background Art

[0002] Aluminum profiles are an emerging material in the home improvement industry. They are popular because of their corrosion resistance, scratch resistance, and much longer service life than wood. However, aluminum profiles are expensive. Many home improvement products choose to use wood veneer aluminum profiles for sale, which are beautiful, inexpensive, and have strong anti-cracking, waterproof and anti-fouling effects. In the process of spraying paint on the surface of the aluminum patch, uneven spraying of the paint can easily affect the beauty of the entire profile; and the coating of powder coating is a systematic process with too many influencing factors, such as current, voltage, atomization, temperature and humidity, curing time, curing temperature, raw material characteristics, powder particles, etc., and uniform powder particle size can reduce the difficulty of the spraying process, improve production efficiency, reduce costs, increase the powder coating rate, reduce the waste of powder coating, reduce costs, and reduce energy consumption.

[0003] Patent No. CN201410638907.0 discloses an anti-rust metal coating, which is composed of a metal substrate and an anti-rust coating. The metal substrate material is iron, and the anti-rust coating is an aluminum alloy coating. The thickness of the aluminum alloy coating is 0.1-0.5mm. The components and weight percentages of the aluminum alloy coating are: 80%-85% aluminum powder, 2%-5% zinc powder, 1%-3% nickel powder, 5%-7% binder, and 4%-8% dispersant. The aluminum powder, zinc powder, nickel powder, binder and dispersant in the formula are mixed, ground, and dispersed at high speed to obtain a slurry. The slurry is sprayed on the metal substrate at high temperature to form the anti-rust coating, which can improve the surface quality of the metal substrate and make it have good anti-rust performance. At the same time, the process is simple, safe and environmentally friendly. However, the coating has the following problems: first, the bonding performance between the coatings is poor, and second, the coating particle size distribution uniformity is poor. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art. By adopting a low-viscosity resin layer, it is possible to effectively prevent grinding from overheating and bonding the screen. The use of a short-molecular-chain polyester surface layer can reduce the difficulty of grinding and concentrate the distribution of powder particle size. Moreover, the addition of long and short rubber layers can solve the technical problem of poor bonding performance between coatings.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A highly concentrated polyester powder coating with uniform particle size distribution, comprising a wood board, an aluminum veneer layer is provided on the surface of the wood board, a long glue layer is coated on the surface of the aluminum veneer layer, a titanium chrome brown coating is sprayed on the upper surface of the long glue layer, a short glue layer is provided on the upper end of the titanium chrome brown coating, and a short molecular chain polyester surface layer is sprayed on the upper surface of the short glue layer;

[0007] A short-molecule chain polyester surface layer, wherein a silicon dioxide layer is provided in the short-molecule chain polyester surface layer, and the silicon dioxide layer is a spherical silicon dioxide layer;

[0008] A titanium chrome brown coating, wherein the titanium chrome brown coating comprises a resin layer, and an upper end of the resin layer is a graphene layer.

[0009] As a preference, the titanium chrome brown coating is sprayed with a high glass transition temperature, and the resin layer is a low viscosity resin layer.

[0010] As a preferred embodiment, a polishing layer is provided on the surface of the wood board, and a bonding layer is provided between the polishing layer and the aluminum veneer layer.

[0011] Preferably, the bonding layer comprises an adhesive layer, and the adhesive layer includes but is not limited to an epoxy resin adhesive layer, an acrylic adhesive layer, and a vinyl ether adhesive layer.

[0012] Preferably, the titanium chrome brown coating comprises a titanium chrome brown pigment layer, the titanium chrome brown pigment layer is arranged on the upper end of the graphene layer, and the upper end of the titanium chrome brown pigment layer is a short rubber layer.

[0013] As another preferred embodiment, the short molecular chain polyester surface layer comprises a highly transparent polyester resin layer, and the highly transparent polyester resin layer is arranged on the upper end of the silicon dioxide layer.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model is green and environmentally friendly by providing a highly transparent polyester resin layer, and has high aesthetics. The titanium chrome brown coating can be directly observed, and there is no color bleeding and migration, and the brightness is high.

[0016] (2) In the present invention, by adopting long and short adhesive layers, the long adhesive primer can increase the adhesion, and the adhesive joint coating can improve the weather resistance while increasing the adhesion.

[0017] (3) In the present invention, by providing a titanium chrome brown coating, the coating film thickness and the coating powdering effect can be effectively controlled, the aesthetics of the powder coating can be improved, and the customer's yield and production efficiency can be improved.

[0018] (4) In the present invention, a spherical silicon dioxide layer is provided to facilitate screening and increase the regularity of powder particles.

[0019] In summary, the powder coating has the advantages of high gloss, high aesthetics, strong adhesion between coatings, low cost, uniform particle size and high regularity of powder particles, and is particularly suitable for the field of powder coating technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the position structure of the wood board in the utility model.

[0023] Figure 3 It is a schematic diagram of the structure of the long rubber layer and the short rubber layer in the utility model.

[0024] Figure 4 This is a schematic diagram of the position structure of the titanium chrome brown pigment layer in the utility model. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0026] Embodiment 1

[0027] like Figures 1 to 4 As shown, the utility model provides a polyester powder coating with high concentrated distribution and uniform particle size, comprising a wood board 1, an aluminum veneer layer 2 is provided on the surface of the wood board 1, a long glue layer 3 is coated on the surface of the aluminum veneer layer 2, a titanium chrome brown coating 4 is sprayed on the upper surface of the long glue layer 3, a short glue layer 5 is provided on the upper end of the titanium chrome brown coating 4, and a short molecular chain polyester surface layer 6 is sprayed on the upper surface of the short glue layer 5;

[0028] A short-molecule chain polyester surface layer 6, wherein a silicon dioxide layer 61 is provided in the short-molecule chain polyester surface layer 6, and the silicon dioxide layer 61 is a spherical silicon dioxide layer;

[0029] The titanium chrome brown coating 4 comprises a resin layer 41 , and a graphene layer 42 is disposed on the upper end of the resin layer 41 .

[0030] Furthermore, the titanium chrome brown coating 4 is sprayed with a high glass transition temperature, and the resin layer 41 is a low-viscosity resin layer. The titanium chrome brown coating 4 is sprayed with a high glass transition temperature, and the low-viscosity resin layer can effectively prevent the occurrence of overheating and bonding of the screen during grinding.

[0031] Furthermore, a polishing layer 11 is provided on the surface of the wood board 1, and an adhesive layer 12 is provided between the polishing layer 11 and the aluminum veneer layer 2. In order to ensure the tightness of the connection between the wood board 1 and the aluminum veneer layer 2, an adhesive layer 12 needs to be provided for bonding. This not only reduces the product cost, but also enables the substrate to have the scratch resistance, crack resistance, mildew resistance and anti-corrosion properties of the aluminum profile.

[0032] Furthermore, the bonding layer 12 includes an adhesive layer, which includes but is not limited to an epoxy resin adhesive layer, an acrylic adhesive layer, and a vinyl ether adhesive layer. The adhesive layer can effectively bond the wood board 1 and the aluminum veneer layer 2, so that the transition of the coating of the aluminum veneer layer 2 at the bending position can be natural, unlike the obvious transition seam on the wood surface, and the coating of the aluminum veneer layer 2 at the bending position will not cause uneven color due to bending.

[0033] Furthermore, the titanium chrome brown coating 4 includes a titanium chrome brown pigment layer 43, which is arranged on the upper end of the graphene layer 42, and the upper end of the titanium chrome brown pigment layer 43 is a short rubber layer 5. The titanium chrome brown pigment layer 43 is a high-temperature calcined red-yellow pigment layer, which is easy to disperse, has good hiding power, excellent light resistance, weather resistance and heat resistance stability, chemical resistance, no bleeding and migration, high brilliance, and the graphene layer 42 is a thermal conductive layer, which can make the entire coating more heat-resistant and stable, can avoid light transmission and heat absorption during heat conduction, and effectively absorb wavelengths.

[0034] Furthermore, the short-molecule chain polyester surface layer 6 includes a highly transparent polyester resin layer 62, and the highly transparent polyester resin layer 62 is arranged on the upper end of the silica layer 61. The short-molecule chain polyester surface layer 6 can reduce the difficulty of grinding and concentrate the distribution of powder particle size. Moreover, the highly transparent polyester resin layer 62 can not only effectively show the high brightness of the titanium chrome brown coating 4 and has good aesthetics, but also makes the smoothness and uniformity of the coating more prominent.

[0035] Working process: First, spray a long glue layer 3 on the aluminum veneer layer 2, then spray a titanium chrome brown coating 4 on the long glue layer 3, then spray a short glue layer 5 on the titanium chrome brown coating 4, and finally spray a short molecular chain polyester surface layer 6 on the short glue layer 5. After the surface coating of the aluminum veneer layer 2 is sprayed, the aluminum veneer layer is bonded to the wood board 1. In this way, the coating uniformity is good, the color distribution is uniform, and the appearance is high.

[0036] It is worth noting that the use of a short molecular chain polyester surface layer 6 can reduce the difficulty of grinding, concentrate the distribution of powder particle size, add a spherical silica layer 61 to facilitate screening, increase the regularity of powder particles, and adopt a high glass transition temperature, a high reaction temperature, easy to reuse, and a high utilization rate. In addition, the coating adopts double cyclone separation, air cooling and water cooling, and the proportion of ultrafine powder and coarse powder is small, so that the particle size distribution is highly uniform;

[0037] The entire coating uses a titanium chrome brown pigment layer 43, which has the advantages of high hiding power, strong red light, and high saturation. It is easy to disperse to ensure uniform particle size distribution while having good hiding power, so that the thermal conductivity of the graphene layer 42 can also be better.

[0038] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0039] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0040] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A polyester powder coating with highly concentrated and uniform particle size distribution, characterized in that: The invention comprises a wood board (1), wherein an aluminum veneer layer (2) is provided on the surface of the wood board (1), a long rubber layer (3) is coated on the surface of the aluminum veneer layer (2), a titanium chrome brown coating (4) is sprayed on the upper surface of the long rubber layer (3), a short rubber layer (5) is provided on the upper end of the titanium chrome brown coating (4), and a short molecular chain polyester surface layer (6) is sprayed on the upper surface of the short rubber layer (5); A short-molecule chain polyester surface layer (6), wherein a silicon dioxide layer (61) is provided inside the short-molecule chain polyester surface layer (6), and the silicon dioxide layer (61) is a spherical silicon dioxide layer; A titanium chrome brown coating (4), wherein the titanium chrome brown coating (4) comprises a resin layer (41), and the upper end of the resin layer (41) is a graphene layer (42).

2. A polyester powder coating with high concentration distribution and uniform particle size according to claim 1, characterized in that: The titanium chrome brown coating (4) is sprayed with a high glass transition temperature, and the resin layer (41) is a low-viscosity resin layer.

3. The polyester powder coating with high concentration distribution and uniform particle size according to claim 1, characterized in that: The surface of the wood board (1) is provided with a polishing layer (11), and an adhesive layer (12) is provided between the polishing layer (11) and the aluminum veneer layer (2).

4. The polyester powder coating with high concentration distribution and uniform particle size according to claim 3, characterized in that: The bonding layer (12) comprises an adhesive layer, and the adhesive layer includes but is not limited to an epoxy resin adhesive layer, an acrylic adhesive layer, and a vinyl ether adhesive layer.

5. The polyester powder coating with high concentration distribution and uniform particle size according to claim 1, characterized in that: The titanium chrome brown coating (4) comprises a titanium chrome brown pigment layer (43), wherein the titanium chrome brown pigment layer (43) is arranged on the upper end of the graphene layer (42), and the upper end of the titanium chrome brown pigment layer (43) is a short rubber layer (5).

6. The polyester powder coating with high concentration distribution and uniform particle size according to claim 1, characterized in that: The short molecular chain polyester surface layer (6) comprises a highly transparent polyester resin layer (62), and the highly transparent polyester resin layer (62) is arranged on the upper end of the silicon dioxide layer (61).

Images