Graphene solvent-free self-leveling floor construction method

Abstract

This invention relates to a method for constructing graphene solvent-free self-leveling flooring, comprising S1: cleaning the substrate, S2: sealing layer, S3: intermediate mortar layer, S4: putty layer, S5: wash layer, and S6: topcoat layer. Different amounts of coarse quartz sand, fine quartz powder, and silica powder are added to the intermediate mortar layer, putty layer, and wash layer, respectively. The graphene floor paint is applied in small, multiple applications, progressing from coarse to fine. This method leverages the lightweight advantages of graphene while ensuring the performance and appearance quality of the flooring. It successfully optimizes the construction process and material ratio of graphene solvent-free self-leveling flooring coatings, fully utilizing the advantages and performance of graphene materials and further improving the strength performance of the flooring. This provides a construction method that enhances the strength of graphene floor paint, broadens its application scope, and increases its practical value.

Description

Technical Field

[0001] This invention relates to the field of flooring construction technology, specifically to a method for constructing graphene solvent-free self-leveling flooring. Background Technology

[0002] Graphene self-leveling floor paint is a new type of floor coating that incorporates graphene. Utilizing graphene's high strength, good electrical conductivity, strong thermal conductivity, and excellent chemical resistance, it improves the floor's strength, antistatic ability, thermal conductivity, and corrosion resistance, respectively. This reduces the amount and thickness of the floor paint needed. Furthermore, graphene's self-leveling properties help the floor paint achieve a self-leveling effect, making it easier to achieve a smooth and even finish, thus improving construction efficiency and the floor's aesthetics.

[0003] Traditional epoxy flooring construction methods include surface treatment, primer application, intermediate coating, putty layer, and topcoat. For environments with higher requirements for strength such as workshops and parking lots, materials such as quartz sand are added to the original paint to improve the floor strength.

[0004] However, the properties of floor coatings with added graphene have changed significantly, especially due to the increased lightweighting, which leads to changes in dosage, thickness, and viscosity. Continuing with the original process often results in uneven coating application and excessive thickness, affecting the performance and appearance of the floor. In addition, graphene floor coatings differ from traditional coatings in material composition and proportions. When dealing with high requirements for strength such as compressive strength and abrasion resistance in workshops and parking lots, where the original coating alone cannot meet the requirements, graphene floor coatings may require special proportions and material selections to fully utilize the advantages and performance of graphene materials and further improve strength performance.

[0005] Therefore, it is necessary to study a solvent-free graphene self-leveling flooring construction method. Summary of the Invention

[0006] Therefore, the purpose of this invention is to provide a method for constructing graphene solvent-free self-leveling flooring, which can effectively solve the problems of uneven coating construction, difficulty in spreading, and excessive thickness caused by the incompatibility between graphene floor paint and traditional processes and material composition ratios, thereby affecting the performance and appearance quality of the flooring.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A method for constructing a solvent-free graphene self-leveling floor, characterized by the following steps:

[0009] S1: Clean the base layer;

[0010] Clean the base layer of debris, sand the base layer, and if there is old coating, fill and repair cracks and holes on the surface of the base layer to obtain a dry, clean and flat base layer.

[0011] S2: Closed layer;

[0012] Add the matching curing agent to the sealing primer and stir evenly. The sealing primer is a graphene solvent-free self-leveling epoxy floor sealing primer.

[0013] Apply the prepared sealing primer evenly to the substrate. The amount of prepared sealing primer used is 0.1–0.2 kg / m².

[0014] S3: Intermediate mortar layer;

[0015] Add coarse quartz sand to the intermediate paint and stir well, then add the matching hardener and stir well.

[0016] The prepared intermediate paint is evenly applied to the sealing layer to obtain the intermediate mortar layer. The amount of prepared intermediate paint is 0.8 to 1.0 kg / m².

[0017] After the intermediate mortar layer has cured, grind and clean the surface of the intermediate mortar layer;

[0018] The coarse quartz sand is 20-40 mesh quartz sand;

[0019] S4: Putty layer;

[0020] Add fine quartz powder of the same type as coarse quartz sand to the intermediate paint and stir evenly. Then add the matching curing agent and stir evenly.

[0021] Apply the prepared intermediate paint onto the intermediate mortar layer to form a putty layer. The amount of prepared intermediate paint used is 0.8–1.0 kg / m².

[0022] After the putty layer has cured, sand and clean the surface of the putty layer.

[0023] The fine quartz powder is 100 mesh quartz powder;

[0024] The intermediate paints mentioned in S3 and S4 are all graphene solvent-free self-leveling epoxy floor intermediate paints.

[0025] S5: Cleansing layer;

[0026] Add silica powder to the topcoat and stir until evenly mixed, then add the matching curing agent and stir until evenly mixed;

[0027] The prepared topcoat is evenly applied to the putty layer to obtain the clean finish layer. The amount of prepared topcoat used is 0.1 to 0.2 kg / m².

[0028] The silicon micro powder is 600 mesh silicon micro powder;

[0029] S6: Topcoat coating;

[0030] Add the matching curing agent to the topcoat and stir evenly. The topcoats mentioned in S5 and S6 are both graphene solvent-free epoxy self-leveling topcoats.

[0031] The prepared topcoat is applied to the wash layer to obtain the topcoat layer. The amount of prepared topcoat used is 1.0 kg / m².

[0032] Furthermore, an elastic layer is provided between the base layer and the sealing layer. The construction of the elastic layer includes the following steps:

[0033] Preparing the formwork: Laying out formwork or scaffolding in the construction area to define the scope and thickness of the concrete construction;

[0034] Concrete preparation: Mix cement and sand evenly to obtain mortar; add rubber granules to the mortar and continue stirring to evenly disperse the rubber granules in the mortar; add aggregate to the mixer and continue stirring until a uniform concrete slurry is obtained;

[0035] Pouring concrete: Pour the concrete slurry into the pre-prepared formwork and vibrate the concrete to compact it;

[0036] Leveling: Use a trowel to level and smooth the concrete surface, making it smooth and flat;

[0037] Curing: After the concrete is poured, it needs to be properly cured and kept moist to ensure the strength and stability of the concrete.

[0038] Formwork removal: After the concrete has set, the formwork is removed, the surface is ground and cleaned to obtain an elastic layer;

[0039] In S2, the prepared sealing primer is evenly applied to the elastic layer.

[0040] Furthermore, a smoothing layer is provided on the elastic layer. The construction method of the smoothing layer is the same as that of the elastic layer, but no rubber particles and aggregates are added when preparing the concrete for the smoothing layer. In S2, the prepared sealing primer is evenly applied to the smoothing layer.

[0041] Furthermore, the fine quartz powder accounts for 30%; the coarse quartz sand accounts for 30%; and the silica powder accounts for 10%.

[0042] Furthermore, the ratio of the sealing primer to the curing agent is 5:1; the ratio of the intermediate coat to the curing agent is 100:13; and the ratio of the topcoat to the curing agent is 5:1.

[0043] Furthermore, in S5, a thinner is added to the topcoat and stirred until the viscosity is reached for application.

[0044] Furthermore, in S2, the prepared sealing primer is applied by roller or scraper; in S3 to S6, the prepared intermediate or topcoat is applied smoothly by trowel.

[0045] Furthermore, the trowel used in S6 is a toothed trowel.

[0046] The beneficial effects of the above technical solution are:

[0047] (1) This invention provides a construction process for graphene self-leveling epoxy flooring. This process successfully optimizes the construction flow and material ratio of graphene solvent-free self-leveling flooring coatings, fully leveraging the advantages and performance of graphene materials and further improving their strength. This provides valuable guidance for other similar projects, promotes the market application of graphene flooring coatings, drives technological development and innovation in the flooring coating field, and opens up new possibilities for the application of graphene materials, possessing positive social significance and practical application value.

[0048] (2) The present invention divides the intermediate coating into an intermediate mortar layer and a putty layer, and the top layer into a wash layer and a top coating layer, respectively adding different contents of coarse quartz sand, fine quartz powder and silica powder. No additives are added to the final top coating layer. The scientific ratio is adopted to effectively improve the strength of the floor. The graphene floor paint is applied from coarse to fine and in small amounts multiple times, which effectively ensures the uniformity and reasonable thickness of the floor paint application, avoiding unevenness and excessive thickness. It can give full play to the advantages of graphene's lightweight and ensure the performance and appearance quality of the floor.

[0049] (3) This invention, by rationally adding coarse quartz sand, fine quartz powder and silica powder to the floor paint and proposing a scientific ratio, can effectively improve the strength properties of the floor, such as wear resistance and compressive strength, when the original paint cannot directly meet the requirements in situations such as workshops and parking lots where there are high requirements for strength items such as compressive strength and wear resistance. This provides a construction method that can enhance the strength of graphene floor paint, broadens the application scope of graphene floor paint and increases the practical value of graphene floor paint.

[0050] (4) The present invention sets an elastic layer on the ground base and provides a construction method for the elastic layer. By adding rubber particles to the concrete to obtain the elastic layer, the elasticity, pressure resistance, impact resistance and seismic resistance of the floor can be effectively increased, which is especially suitable for the environmental requirements of workshops, parking lots and other places. Furthermore, in order to avoid the problem that the elastic layer is difficult to grind and level due to the influence of rubber particles and aggregates, and that the elasticity of the elastic layer itself will affect the painting, a leveling layer is set on the elastic layer. The leveling layer is poured with concrete without rubber particles and stones, which has a certain hardness and is relatively more delicate, making it easy to grind, level and apply floor paint. Attached Figure Description

[0051] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0052] Figure 2 for Figure 1 A magnified view of part A in the image.

[0053] Attached diagram labels: 1 for base layer, 2 for elastic layer, 3 for leveling layer, 4 for sealing layer, 5 for intermediate mortar layer, 6 for putty layer, 7 for wash layer, and 8 for topcoat layer. Detailed Implementation

[0054] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0055] Example 1: This example aims to provide a graphene solvent-free self-leveling flooring construction method, which is mainly used for flooring construction in workshops, parking lots, and other places with high requirements for strength such as compressive strength and abrasion resistance. It addresses the problem of uneven coating construction, difficulty in spreading, and excessive thickness caused by the incompatibility of graphene floor paint with traditional processes and material composition ratios, thereby affecting the performance and appearance quality of the flooring.

[0056] A method for constructing a solvent-free graphene self-leveling floor includes the following steps:

[0057] S1: Clean the base layer 1;

[0058] Clean up debris from the base layer 1. Fill and repair cracks and holes on the surface of the base layer 1 with mortar or other repair materials. If there is an old coating on the floor surface, grind the old coating with a grinder. Grind the corners and other areas with a handheld grinder. If there is no old coating on the floor surface, grind the concrete base directly. After grinding, sweep away the accumulated dust and collect it in a dust bag. Use a vacuum cleaner, feather duster, or wrung-out damp towel to thoroughly clean the accumulated dust on the surface of the base layer 1. Make the base layer 1 flat, resulting in a dry, clean, and flat base layer 1.

[0059] S2: Closed layer 4;

[0060] The sealing primer is a graphene solvent-free self-leveling epoxy floor sealing primer, and it comes with a matching curing agent. First, add the matching curing agent to the sealing primer and stir evenly. The ratio of sealing primer to curing agent is sealing primer: curing agent = 5:1.

[0061] Then, use a roller to evenly apply the prepared sealing primer to the base layer 1. Use a scraper to scrape the primer to cover areas that are difficult to reach with a roller, such as imperfections and corners, ensuring even application and no missed areas. The amount of prepared sealing primer used is 0.1-0.2 kg / m². Be careful to avoid applying too thick a layer.

[0062] S3: Intermediate mortar layer 5;

[0063] The intermediate coat is a graphene solvent-free self-leveling epoxy floor intermediate coat, and a matching curing agent is used. First, coarse quartz sand (20-40 mesh) is added to the intermediate coat and stirred evenly. The coarse quartz sand accounts for 30% of the intermediate coat. The coarse quartz sand can improve the strength and viscosity of the intermediate coat and also accelerate the curing speed. Then, the matching curing agent is added and stirred evenly. The ratio of intermediate coat to curing agent is intermediate coat: curing agent = 100:13. This example is under normal temperature conditions. Depending on different temperatures, there will be different requirements for curing speed and viscosity. The content of coarse quartz sand can be adjusted appropriately to meet the special requirements under different conditions.

[0064] Then, the prepared intermediate paint is evenly applied to the sealing layer 4 with a trowel to fill in any damaged areas, making the surface smooth and obtaining the intermediate mortar layer 5. The amount of the prepared intermediate paint is 0.8 to 1.0 kg / m².

[0065] After the intermediate mortar layer 5 has cured, use a grinder to grind and clean the surface of the intermediate mortar layer 5. The main grinding targets are defects such as trowel marks. After grinding, collect and clean the accumulated dust to ensure the cleanliness of the intermediate mortar layer 5.

[0066] S4: Putty layer 6;

[0067] The intermediate paint and matching hardener from S3 are still used. Fine quartz powder of the same type as coarse quartz sand is added to the intermediate paint and stirred evenly. The fine quartz powder is 100 mesh quartz powder with a content of 30%. Then the matching hardener is added and stirred evenly. The ratio of intermediate paint to hardener is intermediate paint: hardener = 100:13. Similarly, depending on the construction environment, the content of fine quartz sand can be adjusted appropriately to adjust the strength, viscosity and curing speed.

[0068] Use a trowel to apply the prepared intermediate paint to the intermediate mortar layer 5, and scrape it once to form the putty layer 6. The focus is on filling the pits and defects in the ground. The amount of prepared intermediate paint used is 0.8 to 1.0 kg / m².

[0069] After putty layer 6 has cured, sand and clean the surface of putty layer 6. The main sanding targets are defects such as trowel marks. Use a vacuum cleaner, feather duster, or wrung-out damp towel to clean up the accumulated dust.

[0070] S5: Cleansing layer 7;

[0071] All topcoats are graphene-based solvent-free epoxy self-leveling topcoats, along with matching curing agents. First, silica powder (600 mesh, 10% content) is added to the topcoat and stirred until homogeneous. Then, the matching curing agent is added and stirred until homogeneous. The ratio of topcoat to curing agent is 5:1. Depending on actual construction needs, the silica powder content can be adjusted appropriately, or thinner can be added to the topcoat and stirred until a suitable application viscosity is reached for easy trowel application. Finally, a coat of the prepared topcoat is applied evenly to the putty layer 6 using a trowel, focusing on filling pinholes in the sanded intermediate coat to obtain the clean topcoat layer 7. The amount of prepared topcoat used is 0.1–0.2 kg / m².

[0072] S6: Topcoat 8;

[0073] The topcoat uses the same graphene solvent-free epoxy self-leveling topcoat as the S5, and the same curing agent. First, add the matching curing agent to the topcoat and stir evenly. Then, use a toothed trowel to apply the prepared topcoat to the wash layer 7 using a self-leveling trowel to obtain the topcoat layer 8. The amount of prepared topcoat used is 1.0 kg / m². If the topcoat is left for too long, sediment will settle at the bottom. It is recommended to filter it before use.

[0074] Example 2 is basically the same as Example 1, except that this example is for the case where the thickness of the base layer 1 does not meet the requirements for direct grinding and additional thickening treatment of the base layer 1 is required. This example further explains the structure.

[0075] In this embodiment, as Figure 1 To facilitate the construction of the base layer 1 and further improve the compressive strength of the floor, an elastic layer 2 is installed between the base layer 1 and the sealing layer 4. The construction of the elastic layer 2 includes the following steps:

[0076] Prepare the formwork: After confirming that the base layer 1 is flat, lay the formwork or frame in the construction area to limit the scope and thickness of the concrete construction;

[0077] Concrete preparation: Mix cement and sand according to the proportion and stir thoroughly with a mixer to obtain mortar; then add the prepared rubber granules to the mortar and continue stirring to ensure that the rubber granules are evenly dispersed in the mortar; finally, add the aggregate to the mixer and continue stirring until a uniform concrete slurry is obtained.

[0078] Concrete pouring: Pour concrete slurry into the pre-prepared formwork and gradually fill the entire construction area. During the pouring process, a vibrator is needed to compact the concrete to ensure that it is fully compacted, eliminate air bubbles and voids, and improve the density and strength of the concrete.

[0079] Leveling: Leveling should be carried out immediately after the concrete is poured. Use trowels or scrapers to smooth and polish the concrete surface. This step is to eliminate unevenness and bumps on the concrete surface, ensuring a smooth and flat floor surface.

[0080] Curing: After concrete construction, proper curing is necessary to keep the concrete surface moist and promote early hardening and strength development. Common curing methods include water spraying and covering with damp blankets, continuing for a period of time until the concrete is completely cured.

[0081] Formwork Removal: The formwork can be removed after the concrete has set. Care must be taken during formwork removal to avoid damaging the floor surface. After formwork removal, use a grinder to grind the elastic layer 2 to ensure that the surface of the elastic layer 2 is smooth and flat. Finally, clean up the accumulated dust.

[0082] In S2, the prepared sealing primer is evenly applied to the elastic layer 2.

[0083] Example 3 is basically the same as Example 1, except that a flattening layer 3 is also provided on the elastic layer 2. This example further describes the structure.

[0084] In this embodiment, in order to facilitate the sanding and painting of the elastic layer 2, a smoothing layer 3 is provided on the elastic layer 2. The construction method of the smoothing layer 3 is the same as that of the elastic layer 2, but no rubber particles and aggregates are added when preparing the concrete for the smoothing layer 3. In S2, the prepared sealing primer is evenly applied to the smoothing layer 3.

Claims

1. A graphene solvent-free self-leveling floor construction method, characterized by: Includes the following steps: S1: Clean the base layer; Clean up debris from the base layer, sand the base layer, and fill and repair cracks and holes on the base layer surface to obtain a dry, clean and flat base layer; S2: Closed layer; Add the matching curing agent to the sealing primer and stir evenly. The sealing primer is a graphene solvent-free self-leveling epoxy floor sealing primer. Apply the prepared sealing primer evenly to the substrate. The amount of prepared sealing primer used is 0.1–0.2 kg / m². S3: Intermediate mortar layer; Add coarse quartz sand to the intermediate paint and stir well, then add the matching hardener and stir well. The prepared intermediate paint is evenly applied to the sealing layer to obtain the intermediate mortar layer. The amount of prepared intermediate paint is 0.8 to 1.0 kg / m². After the intermediate mortar layer has cured, grind and clean the surface of the intermediate mortar layer; The coarse quartz sand is 20-40 mesh quartz sand; S4: Putty layer; Add fine quartz powder of the same type as coarse quartz sand to the intermediate paint and stir evenly, then add the matching curing agent and stir evenly. Apply the prepared intermediate paint onto the intermediate mortar layer to form a putty layer. The amount of prepared intermediate paint used is 0.8–1.0 kg / m². After the putty layer has cured, sand and clean the surface of the putty layer. The fine quartz powder is 100 mesh quartz powder; The intermediate paints mentioned in S3 and S4 are all graphene solvent-free self-leveling epoxy floor intermediate paints. S5: Cleansing layer; Add silica powder to the topcoat and stir until homogeneous, then add the matching curing agent and stir until homogeneous. Apply the prepared topcoat evenly to the putty layer to obtain the clean finish layer. The amount of prepared topcoat used is 0.1-0.2 kg / m². The silicon micro powder is 600 mesh silicon micro powder; S6: Topcoat coating; Add the matching curing agent to the topcoat and stir evenly. The topcoats mentioned in S5 and S6 are both graphene solvent-free epoxy self-leveling topcoats. The prepared topcoat is applied to the wash layer to obtain the topcoat layer. The amount of prepared topcoat used is 1.0 kg / m².

2. The method for constructing a graphene solvent-free self-leveling floor according to claim 1, characterized in that: An elastic layer is provided between the base layer and the sealing layer. The construction of the elastic layer includes the following steps: Preparing the formwork: Laying out formwork or scaffolding in the construction area to define the scope and thickness of the concrete construction; Concrete preparation: Mix cement and sand evenly to obtain mortar; add rubber granules to the mortar and continue stirring to evenly disperse the rubber granules in the mortar; add aggregate to the mixer and continue stirring until a uniform concrete slurry is obtained; Pouring concrete: Pour the concrete slurry into the pre-prepared formwork and vibrate the concrete to compact it; Leveling: Use a trowel to level and smooth the concrete surface, making it smooth and flat; Curing: After the concrete is poured, it needs to be properly cured and kept moist to ensure the strength and stability of the concrete. Formwork removal: After the concrete has set, the formwork is removed, the surface is ground and cleaned to obtain an elastic layer; In S2, the prepared sealing primer is evenly applied to the elastic layer.

3. The method for constructing a graphene solvent-free self-leveling floor according to claim 2, characterized in that: A smoothing layer is provided on the elastic layer. The construction method of the smoothing layer is the same as that of the elastic layer, but no rubber particles and aggregates are added when preparing the concrete for the smoothing layer. In S2, the prepared sealing primer is evenly applied to the smoothing layer.

4. A method for constructing a solvent-free graphene self-leveling floor according to claim 1 or 2, characterized in that: The ratio of the sealing primer to the curing agent is 5:1; the ratio of the intermediate coat to the curing agent is 100:13; and the ratio of the topcoat to the curing agent is 5:

1.

5. A method for constructing a solvent-free graphene self-leveling floor according to claim 1 or 2, characterized in that: In S5, add thinner to the topcoat and stir until the viscosity is reached for application.

6. A method for constructing a solvent-free graphene self-leveling floor according to claim 1 or 2, characterized in that: In S2, the prepared sealing primer is applied by roller or scraper; in S3 to S6, the prepared intermediate or topcoat is applied smoothly by trowel.

7. The method for constructing a solvent-free graphene self-leveling floor according to claim 6, characterized in that: The trowel used in S6 is a toothed trowel.

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