A microcement table top structure

Abstract

The application relates to the technical field of desktop coatings, in particular to a micro-cement desktop structure. The micro-cement desktop structure comprises a desktop substrate layer, an interface reinforcing layer and a micro-cement main body layer, the interface reinforcing layer and the micro-cement main body layer are sequentially arranged on the desktop substrate layer, the micro-cement main body layer comprises a bottom layer of micro-cement material, a surface layer and a protective layer arranged above the surface layer, a reinforcing grid is arranged in the surface layer, reinforcing protrusions are arranged below the reinforcing grid, a first L-shaped external corner strip is arranged on the outer layer of the surface layer, and the protective layer is arranged on the outer side of the first L-shaped external corner strip. The micro-cement desktop structure of the application applies a thin surface layer decorative micro-cement, breaks the limitation of the material on the base layer through reasonable composite coating design and construction process and tool combination, can be used on the desktop substrate of old furniture, strengthens the strength of the desktop structure, and forms a coating with strong functionality.

Description

Technical Field

[0001] This application relates to the technical field of desktop coatings, and more particularly to a microcement desktop structure. Background Technology

[0002] In related technologies, existing tabletops, including those made of antique furniture, especially high-quality solid wood, are expensive. Solid wood requires high-quality wood, thus demanding higher standards for the tabletop coating. Microcement, a novel inorganic mineral coating, has been used in wall and floor decoration (such as in bathrooms and showrooms) in recent years. Its core advantages are seamless integration, high wear resistance, waterproofing, and antibacterial properties. It can also be customized with various textures to meet the high-quality requirements of tabletop coatings. Microcement materials can overcome the shortcomings of low-quality coating technologies in related fields.

[0003] However, the application of microcement materials in tabletop coatings currently faces two limitations: firstly, the application of microcement materials to tabletops is limited, as microcement construction is concentrated on larger building substrates (walls, floors), lacking suitable processes and tools for small-sized, high-precision furniture (such as tabletops); secondly, there are limitations on the substrate material for microcement, as traditional microcement requires rigid base layers such as concrete and ceramic tiles, while tabletop substrates (such as wood) are prone to deformation due to temperature and humidity changes, leading to coating cracking. Therefore, the application of microcement materials to tabletop structures suffers from limitations in tabletop application and the lack of structural strength and low quality of the microcement substrate. Utility Model Content

[0004] To avoid the aforementioned drawbacks, a microcement desktop structure is provided.

[0005] A microcement desktop structure for retrofitting old furniture includes a desktop substrate layer, an interface reinforcement layer, and a microcement main body layer. The interface reinforcement layer and the microcement main body layer are sequentially disposed on the desktop substrate layer. The microcement main body layer includes a bottom layer of microcement material, a surface layer, and a protective layer located above the surface layer. A reinforcing grid is disposed inside the surface layer, and a reinforcing protrusion is disposed below the reinforcing grid. A first L-shaped corner strip is disposed on the outer layer of the surface layer, and the protective layer is disposed on the outer side of the first L-shaped corner strip. Furthermore, the interface reinforcement layer is coated with a 0.1 mm thick high-adhesion two-component sand-containing acrylate primer.

[0006] Furthermore, the bottom layer of the microcement main layer is made of coarse aggregate microcement with a particle size of 80–120 mesh, with a thickness of 0.5 mm, and is compacted and filled with the gaps in the substrate by a scraper.

[0007] Furthermore, the surface layer of the micro-cement base layer is made of fine aggregate micro-cement with a particle size of 180–220 mesh, covering the texture of the base layer; the surface layer is applied in two coats.

[0008] Furthermore, an acrylic sealant is applied as a protective layer to the microcement substrate, with two coats to seal the surface gaps and prevent liquid stains from seeping in; a two-component polyurethane topcoat with a solid content of ≥60% is applied in two coats to form a high-gloss, wear-resistant sealing layer.

[0009] Furthermore, a portion of the reinforcing grid is placed within the surface layer, and another portion is placed below the tabletop substrate layer, wrapping the microcement tabletop structure from the side.

[0010] Furthermore, the microcement desktop structure also includes a second L-shaped external corner strip, with the long plate of the second L-shaped external corner strip attached to the bottom of the desktop substrate layer and the short plate attached to the side of the microcement desktop structure.

[0011] This application has at least one of the following beneficial effects: 1. The microcement desktop structure of this application utilizes a thin-layer decorative microcement. Through a rational composite coating design, construction process, and tool combination, it overcomes the material's limitations on the substrate, enabling its application on old furniture desktop substrates. This strengthens the desktop structure and forms a coating with strong decorative and functional properties, resulting in a high-quality microcement desktop structure. A two-component acrylic primer acts as an adhesion-enhancing interface agent, improving adhesion to the substrate, especially smooth substrates.

[0012] 2. The micro-cement desktop structure of this application can directly transform old desktops to adapt to new decorating styles, reduce the waste of old furniture, especially expensive old furniture, and promote recycling.

[0013] 3. The microcement desktop structure of this application only requires wiping with a neutral detergent for daily maintenance, without the need for waxing or sealing, making its maintenance cost lower than that of solid wood desktops. The microcement in this application's desktop structure, combined with a two-component polyurethane topcoat, forms a hydrophobic and oleophobic barrier. It can resist the penetration of liquids such as coffee and red wine for up to 24 hours, and oil stains can be removed with a damp cloth.

[0014] 4. The microcement tabletop structure of this application allows for a wider range of tabletop finishes, enabling the creation of unique handcrafted effects without being limited to pre-defined styles.

[0015] 5. The microcement tabletop structure of this application is suitable for damp areas such as dining tabletops. The continuous, seamless coating seals the substrate, solving the problem of wood substrates swelling and deforming when exposed to water. The combination of acrylic sealant and two-component polyurethane topcoat achieves stain and water resistance, ensuring that moisture does not penetrate the substrate and cause deformation.

[0016] 6. The microcement desktop structure of this application is coated with a two-component sand-containing primer, which solves the interface problem between microcement and substrate.

[0017] 7. Strengthen the grille and reinforce the protrusions to enhance the structural strength of old furniture tabletops and extend the lifespan of old furniture; some old furniture is expensive, and extending its lifespan can bring significant economic benefits. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the microcement desktop according to an embodiment of this application.

[0019] Reference numerals: 1. Substrate layer; 2. Interface reinforcement layer; 3. Bottom layer; 4. Top layer; 5. Protective layer; 6. Reinforcing grid; 7. Reinforcing protrusion; 21. First L-shaped external corner strip; 41. Second L-shaped external corner strip. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0023] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0024] Example 1: Reference Figure 1A microcement desktop structure for retrofitting old furniture includes a desktop substrate layer 1, an interface reinforcement layer 2, and a microcement main body layer. The interface reinforcement layer 2 and the microcement main body layer are sequentially disposed on the desktop substrate layer 1. The microcement main body layer includes a bottom layer 3 of microcement material, a surface layer 4, and a protective layer 5 located above the surface layer 4.

[0025] The substrate layer 1 is made of wood, such as solid wood or MDF. For the wood substrate, it is first sanded with 120-grit sandpaper, and then a wood-specific sealing primer is applied. For the iron substrate, it is sanded with 120-grit sandpaper and then a layer of anti-rust paint is applied. For the old paint film, a thorough sanding and dust removal treatment is required. In this embodiment, it is set as the renovation of an old furniture wooden tabletop. The micro-cement tabletop structure of this application can directly modify the old tabletop to adapt to the new decoration style, reduce the waste of old furniture, especially expensive old furniture, and promote recycling. The substrate layer 1 is an old pine tabletop with 3 cracks. First, the cracks are filled with epoxy putty, and the substrate layer 1 is sanded until the flatness error is ≤0.5mm, and then a wood-specific sealing primer is applied. The micro-cement tabletop structure of this application is coated with a two-component sand-containing primer to solve the interface problem between micro-cement and substrate. The interface reinforcement layer 2 is coated with a high-adhesion two-component sand-containing acrylic primer with a thickness of about 0.1mm. Two-component acrylic primers act as adhesion-enhancing interface agents to improve adhesion to substrates, especially smooth substrates.

[0026] The bottom layer 3 of the microcement main layer is made of coarse aggregate microcement with a particle size of 80-120 mesh and a thickness of 0.5 mm. The substrate gaps are filled by compacting with a scraper, and then coarse aggregate microcement is applied. After drying for 24 hours, medium mesh grinding is performed.

[0027] The surface layer 4 of the microcement main layer is made of fine aggregate microcement with a particle size of 180-220 mesh, covering the texture of the underlying layer 3. After the fine aggregate layer dries, it is hand-polished to 240 mesh. A reinforcing grid 6 is installed within the surface layer 4, and reinforcing protrusions 7 are installed below the reinforcing grid 6. The reinforcing grid 6 is made of a material that easily bonds to the surface layer 4, such as steel or fiber grid. Fiber grids can be used to create very strong, non-bending tabletops with very thin materials, while maintaining a light weight for easy movement. Fiber grids have excellent fatigue resistance and do not suffer from metal fatigue due to frequent stress, resulting in a long service life. Furthermore, fiber grids are corrosion-resistant, rust-free, and corrosion-free, making them ideal for use in humid environments such as dining tables. Fiber grids also have a certain degree of flexibility, allowing for the creation of curved or irregularly shaped tabletops. The surface layer 4 is applied in two coats. One method is to first apply a thin layer of fine aggregate microcement to the surface layer 4, then press the fiberglass grid into this wet slurry, ensuring that the fiber grid is fully encapsulated by the slurry and tightly bonded to the fine aggregate microcement. After the first layer of fine aggregate microcement has slightly dried and hardened, apply the next layer of fine aggregate microcement on top, completely covering the lower middle part of the total thickness of the fiber grid. The fiber grid should not be too close to the surface, otherwise the mesh imprint will be visible. Part of the reinforcing grid 6 is embedded in the surface layer 4, wrapping around the side of the microcement tabletop structure, and part is fixed below the tabletop substrate layer 1. The reinforcing protrusion 7 is embedded in the bottom of the tabletop substrate layer 1. The installation of the reinforcing grid and reinforcing protrusions strengthens the structural strength of the old furniture tabletop and extends its service life; some old furniture is expensive, and extending its service life has significant economic benefits.

[0028] A first L-shaped corner strip 21 is attached to the corner of the desktop surface layer 4. The first L-shaped corner strip 21 includes a long board and a short board. The long board of the first L-shaped corner strip 21 is attached to the surface layer 4, and the short board is attached to the side of the microcement desktop structure. The aluminum alloy first L-shaped corner strip 21 prevents the sides and corners from being easily damaged when microcement is used on the desktop.

[0029] Similarly, a second L-shaped corner strip 41 is attached to the corner of the desktop substrate layer 1. The longer side of the second L-shaped corner strip 41 is attached to the bottom of the desktop substrate layer 1, and the shorter side is attached to the side of the microcement desktop structure. Furthermore, the first L-shaped corner strip 21 and the second L-shaped corner strip 41 can further fix the reinforcing grid 6.

[0030] The protective layer 5 of the microcement base layer is covered with an acrylic sealant, applied in two coats, and lightly sanded at 320 grit after drying to seal the gaps in the surface layer 4 and prevent liquid stains from seeping in; a two-component polyurethane topcoat with a solid content ≥60% is applied in two coats to form a high-gloss, wear-resistant sealing layer, which is then cured for 72 hours.

[0031] The microcement tabletop structure described in this application is suitable for damp areas such as dining tabletops. A continuous, seamless coating seals the substrate, solving the problem of wood substrates swelling and deforming when exposed to water. The combination of an acrylic sealant and a two-component polyurethane topcoat achieves stain and water resistance, ensuring that moisture does not penetrate the substrate and cause deformation.

[0032] Microcement application emphasizes layered application: each layer should be applied 24 hours apart, with an ambient temperature of 20–25℃ and humidity ≤75%; the surface layer 4 should be lightly sanded with 240-grit sandpaper, and the sealing and protective layer 5 should be lightly sanded with 320-grit sandpaper; the drying time should be carefully controlled, allowing at least 24 hours between each coating layer to ensure complete drying before applying the next layer.

[0033] The microcement desktop structure of this application only requires wiping with a neutral detergent for daily maintenance, without the need for waxing or sealing, making its maintenance cost lower than that of solid wood desktops. The microcement in this application's desktop structure, combined with a two-component polyurethane topcoat, forms a hydrophobic and oleophobic barrier. It can resist the penetration of liquids such as coffee and red wine for up to 24 hours, and oil stains can be removed with a damp cloth. Furthermore, the microcement desktop structure of this application allows for a wider range of desktop finishes, enabling the creation of unique, handcrafted effects, free from pre-defined styles.

[0034] In summary, the microcement desktop structure of this application utilizes a thin surface layer 4 decorative microcement. Through reasonable composite coating design, construction technology, and tool combination, it breaks through the material's limitations on the substrate, enabling it to be applied to old furniture desktop substrates, strengthening the desktop structure, forming a coating with strong decorative and functional properties, and generating a high-quality microcement desktop structure.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A microcement desktop structure, characterized in that, For the renovation of old furniture, it includes a desktop substrate layer (1), an interface reinforcement layer (2), and a micro cement body layer. The interface reinforcement layer (2) and the micro cement body layer are sequentially arranged on the desktop substrate layer (1). The micro cement body layer includes a bottom layer (3) of micro cement material, a surface layer (4), and a protective layer (5) located above the surface layer (4). A reinforcing grid (6) is arranged inside the surface layer (4), and a reinforcing protrusion (7) is arranged below the reinforcing grid (6). A first L-shaped corner strip (21) is arranged on the outer layer of the surface layer (4), and the protective layer (5) is arranged on the outer side of the first L-shaped corner strip (21).

2. The microcement desktop structure according to claim 1, characterized in that, The interface enhancement layer (2) is coated with a 0.1 mm thick high-adhesion two-component sand-containing acrylic primer.

3. The microcement desktop structure according to claim 1, characterized in that, The bottom layer (3) of the micro-cement main layer is made of coarse aggregate micro-cement with a particle size of 80–120 mesh and a thickness of 0.5 mm. The substrate gaps are filled by compacting with a scraper.

4. The microcement desktop structure according to claim 1, characterized in that, The surface layer (4) of the micro-cement main layer is made of fine aggregate micro-cement with a particle size of 180–220 mesh, covering the texture of the bottom layer (3); the surface layer (4) is applied twice.

5. The microcement desktop structure according to claim 1, characterized in that, The protective layer (5) of the microcement main layer is covered with acrylic sealant, and two coats are applied to seal the gaps in the surface layer (4) to prevent liquid stains from seeping in; a two-component polyurethane topcoat with a solid content of ≥60% is applied twice to form a high-gloss and wear-resistant sealing layer.

6. The microcement desktop structure according to claim 1, characterized in that, A portion of the reinforcing grid (6) is placed inside the surface layer (4), and a portion is placed below the desktop substrate layer (1), wrapping the micro cement desktop structure from the side.

7. The microcement desktop structure according to claim 6, characterized in that, The first L-shaped external corner strip (21) is set with the long plate bonding surface layer (4) and the short plate bonding micro cement tabletop structure side is set.

8. The microcement desktop structure according to claim 7, characterized in that, The micro cement desktop structure also includes a second L-shaped corner strip (41), the long plate of which is attached to the bottom of the desktop substrate layer (1), and the short plate is attached to the side of the micro cement desktop structure.

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