Permeation method for low-density grey silicon plate

Abstract

The invention discloses a permeation method for a low-density grey silicon plate, which comprises the following steps: S1, sanding: sanding the surface of the low-density grey silicon plate by using a plate sanding machine to generate grinding force, and removing burrs, oil stains and other surface pollutants on the surface of the low-density grey silicon plate, so that the low-density grey silicon plate forms a clean and active coating surface; dust removal: removing dust and impurities on the coating surface of the low-density ash silicon plate by utilizing an electrostatic adsorption principle; s3, permeation coating is conducted, specifically, roller coating is conducted through two rubber rollers, and permeation primer is evenly coated on the coating face of the low-density grey silicon plate till the permeation primer completely permeates into the surface layer; and S4, drying: drying the low-density grey silicon plate subjected to permeation coating by using drying equipment. By arranging a series of structures, the binding force between the low-density grey silicon plate and the surface is improved, and the adhesive force is improved; the outdoor waterproof effect of the low-density grey silicon plate is improved; the weather resistance of the low-density grey silicon plate is prolonged, and the service life of the low-density grey silicon plate is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of low-density grey silicon plate penetration, in particular to a penetration method for low-density grey silicon plate. Background Art

[0002] Low-density gray silica board is a lightweight board with wollastonite as the main component, which has excellent fireproof, moisture-proof and heat-insulating properties. Its main components include wollastonite, kaolin, inorganic salts and reinforcing fibers. It is made through a special formula and has the characteristics of non-flammability, water resistance, moisture resistance, heat preservation, light weight and high strength. UV paint is a light-curing paint. It is currently the most widely used furniture paint. Its main features are: after strong ultraviolet light curing treatment, the color is stable. The UV paint film has a three-dimensional structure, with high hardness, good wear resistance, good transparency, and the product is scratch-resistant and friction-resistant.

[0003] As a decorative board, low-density gray silica board is widely used in UV paint on outdoor walls. Outdoors, it will be exposed to the sun and rain. As it is soaked in rain, the paint film will fall off and the adhesion will be poor. The existing UV penetrating primer used for low-density gray silica board has problems such as poor yellowing resistance and poor outdoor weather resistance, and cannot meet market and customer requirements. Summary of the invention

[0004] The object of the present invention is to provide a method for infiltration of low-density grey silicon plates to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a penetration method for low-density grey silicon board, the penetration method comprising the following steps: S1. Sanding: Use a plate sander to generate grinding force to sand the surface of the low-density gray silicon board to remove burrs, oil stains and other surface contaminants on the surface of the low-density gray silicon board, so that the low-density gray silicon board forms a clean and active coating surface; S2. Dust removal: Use the principle of electrostatic adsorption to remove dust and impurities on the surface of low-density gray silicon plate coating; S3. Penetration coating: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S4. Drying: Use drying equipment to dry the low-density gray silicon board after penetration coating; The specific processes of the penetration coating include UV putty penetration coating process, skinning penetration coating process and water-based intermediate coating penetration coating process.

[0006] Preferably, the specific steps of the UV putty penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. UV putty roller coating: After the penetration primer roller coating, immediately apply UV putty roller coating on the coating surface of the low-density gray silicon board; S3, UV curing: After the UV putty is roller-coated, the UV putty on the coating surface of the low-density gray silicon board is immediately cured after being exposed to ultraviolet light; S4. Polishing and grinding: After UV curing, use polishing and grinding equipment to polish and grind the coating surface of the low-density gray silicon plate; S5. Surface coating: After polishing and grinding, use a coating machine to perform surface coating on the coating surface of the low-density gray silica board.

[0007] Preferably, the specific steps of the skin penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. Transmission: Use transmission equipment to smoothly transmit the low-density gray silicon plate after roller coating of penetrating primer; S3. Palletizing: Palletize the low-density grey silicon boards.

[0008] Preferably, the specific steps of the water-based mid-coat penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. Transmission: Use transmission equipment to smoothly transmit the low-density gray silicon plate after roller coating of penetrating primer; S3, water-based mid-coat: Use coating equipment to apply water-based mid-coat on the coating surface of low-density gray silica board; S3. Infrared: After the low-density grey silica board is coated with water-based mid-coat, infrared equipment is used to infrared cure the low-density grey silica board coating surface.

[0009] Preferably, in the UV putty penetration coating process, fluorocarbon paint or UV color paint is used for surface coating, and in the UV putty penetration coating process, a rubber roller with a Shore hardness of 35HS is used for penetrating primer roller coating.

[0010] Preferably, when PUR hot melt adhesive is used for skinning in the skinning penetration coating process, the low-density gray silicon board skinning is placed for at least 12 hours; when the impregnated fireproof skin is hot-pressed in the skinning penetration coating process, it can be used immediately.

[0011] Preferably, the rubber roller used for the penetrating primer roller coating in the water-based mid-coat penetrating coating process is made of PU or silicon-based modified rubber.

[0012] Preferably, a self-polymerizing penetrating primer is used in the UV putty penetrating coating process, the skinning penetrating coating process and the water-based mid-coat penetrating coating process.

[0013] Preferably, the drying temperature in the penetration method is 60-80°C, and the primer temperature used for the penetration primer roller coating in the UV putty penetration coating process, the skin penetration coating process and the water-based mid-coat penetration coating process is 20-30°C.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The penetration method for low-density grey silica board improves the bonding strength between the low-density grey silica board and the surface, and enhances the adhesion; improves the outdoor waterproof effect of the low-density grey silica board; extends the weather resistance of the low-density grey silica board, and increases the service life of the low-density grey silica board.

[0015] This penetration method is used for low-density grey silica board. The self-polymerizing penetrating primer will undergo a weak chemical reaction with the relevant substances in the low-density grey silica board to form a strong crusting tissue, thereby increasing the strength of the surface of the low-density grey silica board and greatly improving the rigidity and freeze-thaw resistance of the low-density grey silica board. After the penetrating primer is completely dry, the surface microporous structure of the low-density grey silica board will be sealed to form a good waterproof effect. The penetrating primer will undergo a chemical reaction with the relevant substances in the water-based intermediate coating or UV putty to form a long chain and a network structure, which not only enhances the bonding between the water-based intermediate coating / UV putty and the low-density grey silica board, but also further enhances the waterproof performance of the low-density grey silica board. After the penetrating primer is completely dry, a strongly polar organic interface is formed on the surface of the low-density grey silica board, which has a strong bonding with PUR hot melt adhesive, phenolic resin adhesive, etc., thereby enhancing the bonding between the low-density grey silica board and the epidermis.

[0016] The penetration method for low-density grey silicon board adopts a skin penetration coating process, which improves the adhesion and viscosity of the low-density grey silicon board and is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the infiltration flow chart of the low-density gray silicon board of the present invention.

[0018] Figure 2 The figure is a flow chart of the UV putty penetration coating process of the present invention.

[0019] Figure 3 The figure is a flow chart of the skin penetration coating process in the present invention.

[0020] Figure 4 It is a flow chart of the water-based mid-coat penetrating coating process of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] like Figures 1 to 4 As shown, this embodiment is used for the infiltration method of low-density grey silicon board, and the infiltration method comprises the following steps: S1. Sanding: Use a plate sander to generate grinding force to sand the surface of the low-density gray silicon board to remove burrs, oil stains and other surface contaminants on the surface of the low-density gray silicon board, so that the low-density gray silicon board forms a clean and active coating surface; S2. Dust removal: Use the principle of electrostatic adsorption to remove dust and impurities on the surface of low-density gray silicon plate coating; S3. Penetration coating: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S4. Drying: Use drying equipment to dry the low-density gray silicon board after penetration coating; The specific processes of the penetration coating include UV putty penetration coating process, skinning penetration coating process and water-based intermediate coating penetration coating process.

[0024] Specifically, the specific steps of the UV putty penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. UV putty roller coating: After the penetration primer roller coating, immediately apply UV putty roller coating on the coating surface of the low-density gray silicon board; S3, UV curing: After the UV putty is roller-coated, the UV putty on the coating surface of the low-density gray silicon board is immediately cured after being exposed to ultraviolet light; S4. Polishing and grinding: After UV curing, use polishing and grinding equipment to polish and grind the coating surface of the low-density gray silicon plate; S5. Surface coating: After polishing and grinding, use a coating machine to perform surface coating on the coating surface of the low-density gray silica board.

[0025] Furthermore, the specific steps of the skin penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. Transmission: Use transmission equipment to smoothly transmit the low-density gray silicon plate after roller coating of penetrating primer; S3. Palletizing: Palletize the low-density grey silicon boards.

[0026] Furthermore, the specific steps of the water-based mid-coat penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. Transmission: Use transmission equipment to smoothly transmit the low-density gray silicon plate after roller coating of penetrating primer; S3, water-based mid-coat: Use coating equipment to apply water-based mid-coat on the coating surface of low-density gray silica board; S3. Infrared: After the low-density grey silica board is coated with water-based mid-coat, infrared equipment is used to infrared cure the low-density grey silica board coating surface.

[0027] Furthermore, in the UV putty penetration coating process, fluorocarbon paint or UV color paint is used for surface coating, and in the UV putty penetration coating process, a rubber roller with a Shore hardness of 35HS is used for penetrating primer roller coating.

[0028] Furthermore, when PUR hot melt adhesive is used for skinning in the skin penetration coating process, the low-density gray silicon board skinning is left for at least 12 hours; when the impregnated fireproof skin is hot-pressed in the skin penetration coating process, it can be used immediately.

[0029] Furthermore, the rubber roller used for the penetration primer roller coating in the water-based mid-coat penetration coating process is made of PU or silicon-based modified rubber.

[0030] Furthermore, a self-polymerizing penetrating primer is used in the UV putty penetrating coating process, the skinning penetrating coating process and the water-based mid-coat penetrating coating process.

[0031] Furthermore, the drying temperature in the penetration method is 60-80°C, and the primer temperature used for the penetration primer roller coating in the UV putty penetration coating process, the skin penetration coating process and the water-based mid-coat penetration coating process is 20-30°C. Example 1

[0032] A method for infiltration of low-density grey silicon board, the infiltration method comprising the following steps: S1. Sanding: Use a plate sander to generate grinding force to sand the surface of the low-density gray silicon board to remove burrs, oil stains and other surface contaminants on the surface of the low-density gray silicon board, so that the low-density gray silicon board forms a clean and active coating surface; S2. Dust removal: Use the principle of electrostatic adsorption to remove dust and impurities on the surface of low-density gray silicon plate coating; S3. Penetration coating: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S4. Drying: Use drying equipment to dry the low-density gray silicon board after penetration coating; Among them, the penetration coating adopts UV putty penetration coating process, and the specific steps are as follows; S1. Roller coating of penetrating primer: Use two rubber rollers with a Shore hardness of 35HS to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates the surface layer; S2. UV putty roller coating: After the penetration primer roller coating, immediately apply UV putty roller coating on the coating surface of the low-density gray silicon board; S3, UV curing: After the UV putty is roller-coated, the UV putty on the coating surface of the low-density gray silicon board is immediately cured after being exposed to ultraviolet light; S4. Polishing and grinding: After UV curing, use polishing and grinding equipment to polish and grind the coating surface of the low-density gray silicon plate; S5. Surface coating: After polishing and grinding, use a coating machine to apply fluorocarbon paint or UV color paint on the coating surface of the low-density gray silicon board.

[0033] The self-polymerizing penetrating primer in this embodiment will undergo a weak chemical reaction with the related substances in the low-density grey silica board to form a strong crusting tissue, thereby increasing the strength of the surface of the low-density grey silica board and greatly improving the rigidity and freeze-thaw resistance of the low-density grey silica board; after the penetrating primer is completely dry, the surface microporous structure of the low-density grey silica board will be sealed to form a good waterproof effect; the penetrating primer will undergo a chemical reaction with the related substances in the UV putty to form a long chain and a network structure, which not only enhances the bonding between the UV putty and the low-density grey silica board, but also further improves the waterproof performance of the low-density grey silica board. Example 2

[0034] A method for infiltration of low-density grey silicon board, the infiltration method comprising the following steps: S1. Sanding: Use a plate sander to generate grinding force to sand the surface of the low-density gray silicon board to remove burrs, oil stains and other surface contaminants on the surface of the low-density gray silicon board, so that the low-density gray silicon board forms a clean and active coating surface; S2. Dust removal: Use the principle of electrostatic adsorption to remove dust and impurities on the surface of low-density gray silicon plate coating; S3. Penetration coating: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S4. Drying: Use drying equipment to dry the low-density gray silicon board after penetration coating; Among them, the penetration coating adopts the skin penetration coating process, and the specific steps are as follows: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. Transmission: Use transmission equipment to smoothly transmit the low-density gray silicon plate after roller coating of penetrating primer; S3, palletizing: palletizing the low-density grey silicon plates; When PUR hot melt adhesive is used for skinning and penetration coating process, the low-density gray silicon board skinning should be placed for at least 12 hours; when the impregnated fireproof skin is hot-pressed in the skinning and penetration coating process, it can be used immediately.

[0035] The self-polymerizing penetrating primer in this embodiment will undergo a weak chemical reaction with the related substances in the low-density grey silica board to form a strong crusting tissue, thereby increasing the strength of the surface of the low-density grey silica board and greatly improving the rigidity and freeze-thaw resistance of the low-density grey silica board; after the penetrating primer is completely dry, the surface microporous structure of the low-density grey silica board is sealed to form a good waterproof effect; the penetrating primer will undergo a chemical reaction with the related substances of the water-based mid-coat to form a long chain and a network structure, which not only enhances the bonding between the water-based mid-coat and the low-density grey silica board, but also further enhances the waterproof performance of the low-density grey silica board; after the penetrating primer is completely dry, a strongly polar organic interface is formed on the surface of the low-density grey silica board, which has a strong bonding with PUR hot melt adhesive, phenolic resin adhesive, etc., thereby enhancing the bonding between the low-density grey silica board and the epidermis.

[0036] 1. According to the test, the viscosity is 50 according to GB / T 1723-1993 "Determination of Coating Viscosity", which meets the limit of 40 to 100 and improves the adhesion.

[0037] 2. The solid content of the primer is based on GB / T 2793-1995 "Determination of non-volatile content of adhesives". The result is 99.1, which is greater than the limit of 99, conforms to the test results, and increases the viscosity of the substrate.

[0038] 3. The relative density of the self-polymerizing penetrating primer is based on GB / T 4472-2011 "Determination of density and relative density of chemical products". The test result is 1.2241, which is within the limit of 1.200~1.230 and meets the judgment result.

[0039] 4. The VOC of the self-polymerizing penetrating primer is less than the limit of 0.1 according to GB / T 23986-2009 "Determination of the Volatile Organic Compound (VOC) Content of Paints and Varnishes", so the self-polymerizing penetrating primer is environmentally friendly. Example 3

[0040] A method for infiltration of low-density grey silicon board, the infiltration method comprising the following steps: S1. Sanding: Use a plate sander to generate grinding force to sand the surface of the low-density gray silicon board to remove burrs, oil stains and other surface contaminants on the surface of the low-density gray silicon board, so that the low-density gray silicon board forms a clean and active coating surface; S2. Dust removal: Use the principle of electrostatic adsorption to remove dust and impurities on the surface of low-density gray silicon plate coating; S3. Penetration coating: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S4. Drying: Use drying equipment to dry the low-density gray silicon board after penetration coating; Among them, the penetration coating adopts the water-based intermediate coating penetration coating process, and the specific steps are as follows: S1. Penetration primer roller coating: Use two PU or silicone-based modified rubber rollers to evenly apply the penetration primer on the coating surface of the low-density gray silicon board until it completely penetrates the surface layer; S2. Transmission: Use transmission equipment to smoothly transmit the low-density gray silicon plate after roller coating of penetrating primer; S3, water-based mid-coat: Use coating equipment to apply water-based mid-coat on the coating surface of low-density gray silica board; S3. Infrared: After the low-density grey silica board is coated with water-based mid-coat, infrared equipment is used to infrared cure the low-density grey silica board coating surface.

[0041] According to IEC 62321-4-2013+AMD1-2017CSV-Mercury content in polymers, metals and electronic products, CV-AAS, CV-AFS, ICP-OES and ICP-MS and IEC 62321-5 2013-Detection of cadmium, lead and chromium in polymers and electronic products by AAS, AFS, ICP-OES and ICP-MS, as well as the detection basis of cadmium and lead in metals, the minimum value of lead (Pb) in self-polymerizing penetrating primer is 10 mg / Kg, the minimum value of cadmium (Cd) is 10 mg / Kg, the minimum value of mercury (Hg) is 10 mg / Kg, the total amount of polybrominated biphenyls (PBBs) is 200 mg / Kg, and the total amount of polybrominated diphenyl ethers (PBDEs) is 200 mg / Kg, which are all far below the limit of 1000 mg / Kg. Therefore, self-polymerizing penetrating primer has low toxicity in terms of respiratory inhalation and skin absorption; it has low volatility.

[0042] The physical and chemical properties of the low-density gray silicon board in Example 1 are shown in the following table:

[0043] The physical and chemical properties of the low-density gray silicon board in Example 2 are shown in the following table:

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for infiltration of low-density grey silicon board, characterized in that: The infiltration method comprises the following steps: S1. Sanding: Use a plate sander to generate grinding force to sand the surface of the low-density gray silicon board to remove burrs, oil stains and other surface contaminants on the surface of the low-density gray silicon board, so that the low-density gray silicon board forms a clean and active coating surface; S2. Dust removal: Use the principle of electrostatic adsorption to remove dust and impurities on the surface of low-density gray silicon plate coating; S3. Penetration coating: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S4. Drying: Use drying equipment to dry the low-density gray silicon board after penetration coating; The specific processes of the penetration coating include UV putty penetration coating process, skinning penetration coating process and water-based intermediate coating penetration coating process.

2. The infiltration method for low-density grey silicon board according to claim 1, characterized in that: The specific steps of the UV putty penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. UV putty roller coating: After the penetration primer roller coating, immediately apply UV putty roller coating on the coating surface of the low-density gray silicon board; S3, UV curing: After the UV putty is roller-coated, the UV putty on the coating surface of the low-density gray silicon board is immediately cured after being exposed to ultraviolet light; S4. Polishing and grinding: After UV curing, use polishing and grinding equipment to polish and grind the coating surface of the low-density gray silicon plate; S5. Surface coating: After polishing and grinding, use a coating machine to perform surface coating on the coating surface of the low-density gray silica board.

3. The infiltration method for low-density grey silicon board according to claim 1, characterized in that: The specific steps of the skin penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. Transmission: Use transmission equipment to smoothly transmit the low-density gray silicon plate after roller coating of penetrating primer; S3. Palletizing: Palletize the low-density grey silicon boards.

4. The infiltration method for low-density grey silicon board according to claim 1, characterized in that: The specific steps of the water-based mid-coat penetration coating process include: S1. Roller coating of penetrating primer: Use two rubber rollers to evenly apply the penetrating primer on the coating surface of the low-density gray silica board until it completely penetrates into the surface layer; S2. Transmission: Use transmission equipment to smoothly transmit the low-density gray silicon plate after roller coating of penetrating primer; S3, water-based mid-coat: Use coating equipment to apply water-based mid-coat on the coating surface of low-density gray silica board; S3. Infrared: After the low-density grey silica board is coated with water-based mid-coat, infrared equipment is used to infrared cure the low-density grey silica board coating surface.

5. The infiltration method for low-density grey silicon board according to claim 2, characterized in that: In the UV putty penetration coating process, fluorocarbon paint or UV color paint is used for surface coating, and a rubber roller with a Shore hardness of 35HS is used for penetration primer roller coating in the UV putty penetration coating process.

6. The infiltration method for low-density grey silicon board according to claim 3, characterized in that: When PUR hot melt adhesive is used for skinning and penetration coating process, the low-density gray silicon board skinning should be placed for at least 12 hours; when the impregnated fireproof skin is hot-pressed and formed in the skinning and penetration coating process, it can be used immediately.

7. The infiltration method for low-density grey silicon board according to claim 4, characterized in that: The rubber roller used for the penetration primer roller coating in the water-based mid-coat penetration coating process is made of PU or silicon-based modified rubber.

8. The infiltration method for low-density grey silicon board according to claim 1, characterized in that: Self-polymerizing penetrating primer is used in the UV putty penetrating coating process, the skin penetrating coating process and the water-based intermediate coating penetrating coating process.

9. The infiltration method for low-density grey silicon board according to claim 1, characterized in that: The drying temperature in the penetration method is 60-80°C, and the primer temperature used for the penetration primer roller coating in the UV putty penetration coating process, the skin penetration coating process and the water-based mid-coat penetration coating process is 20-30°C.

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