Elastic waterproof putty powder coating structure

Abstract

This invention provides an elastic waterproof putty powder coating structure, belonging to the field of waterproof coating technology. It includes a substrate treatment layer, on the outer surface of which are sequentially arranged an alkali-resistant layer, an elastic waterproof main layer, a crack-resistant reinforcing layer, an elastic decorative surface layer, and a surface protective cover layer. This invention, through the design of the elastic waterproof main layer, uses it as its core, achieving long-lasting waterproofing through multi-layer sealing and high elasticity. Simultaneously, it can cope with substrate deformation, reducing leakage at its source. On one hand, the nano-silane in the elastic waterproof bottom layer imparts hydrophobic properties, allowing for the drainage of small amounts of infiltrated water. On the other hand, the elastic waterproof main layer can deform synchronously with the micro-cracks caused by thermal expansion and contraction and slight settlement of the substrate, always maintaining the integrity of the waterproof membrane and avoiding leakage problems caused by substrate deformation and cracking in conventional waterproof coatings.

Description

Technical Field

[0001] This utility model relates to the field of waterproof coating technology, specifically to an elastic waterproof putty powder coating structure. Background Technology

[0002] In the field of building waterproofing and decoration engineering, waterproof coatings, as the core barrier against moisture penetration and protection of the substrate structure, directly determine the service life and safety of buildings. However, existing waterproof coating technologies still face multiple technical bottlenecks in practical applications, making it difficult to simultaneously meet the comprehensive needs of long-term waterproofing, crack resistance, interlayer stability, and decorative durability.

[0003] Traditional waterproof coatings often employ a single rigid or simple flexible structural design, which generally suffers from poor adaptability to substrate deformation. Under temperature and humidity cycles, slight settlement, or structural stress, building substrates are prone to micro-cracks. Conventional coatings, due to their mismatch in elastic modulus with the substrate, cannot deform synchronously, leading to cracking of the waterproof membrane and the formation of leakage channels. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an elastic waterproof putty powder coating structure that overcomes or at least partially solves the above technical problems.

[0005] This utility model is implemented as follows: This utility model provides an elastic waterproof putty powder coating structure, including a substrate treatment layer, wherein an alkali-resistant layer, an elastic waterproof main layer, a crack-resistant reinforcing layer, an elastic decorative surface layer, and a surface protective cover layer are sequentially disposed on the outer surface of the substrate treatment layer.

[0006] In one embodiment of this utility model, the substrate treatment layer includes a substrate cleaning layer and an interface penetration layer. The substrate cleaning layer is composed of a neutral detergent and high-pressure water, and the interface penetration layer is composed of an acrylic-modified epoxy penetrant.

[0007] In one embodiment of this utility model, the alkali-resistant layer includes an alkali-resistant sealing underlayer, an alkali-resistant sealing surface layer is provided on the outside of the alkali-resistant sealing underlayer, and a thin leveling layer is provided on the outer layer of the alkali-resistant sealing surface layer.

[0008] In one embodiment of this utility model, the elastic waterproof main layer includes an elastic waterproof underlayer, which is disposed outside the thin leveling layer. An elastic waterproof middle layer is disposed outside the elastic waterproof underlayer, and an elastic waterproof top layer is disposed outside the elastic waterproof middle layer.

[0009] In one embodiment of this utility model, the crack-resistant reinforcing layer includes a crack-resistant fiber underlayer, which is disposed outside the elastic waterproof main layer. A crack-resistant fiber surface layer is disposed outside the crack-resistant fiber underlayer, and an elastic transition layer is disposed outside the crack-resistant fiber surface layer.

[0010] In one embodiment of this utility model, the elastic decorative surface layer includes an elastic putty leveling layer, the elastic putty leveling layer is disposed outside the elastic transition layer, an elastic decorative primer is disposed outside the elastic putty leveling layer, and an elastic decorative topcoat is disposed outside the elastic decorative primer.

[0011] In one embodiment of this utility model, the surface protective cover includes a weather-resistant protective underlayer, which is disposed outside the elastic decorative topcoat, and the weather-resistant protective surface layer is disposed outside the weather-resistant protective underlayer.

[0012] The present invention provides an elastic waterproof putty powder coating structure, the beneficial effects of which include: 1. Through the design of the elastic waterproof main layer, with the elastic waterproof main layer as the core, long-lasting waterproofing is achieved through multi-layer sealing and high elasticity adaptation. At the same time, it can cope with substrate deformation and reduce leakage at the source. On the one hand, the nano silane of the elastic waterproof bottom layer gives it hydrophobic properties, which can guide a small amount of water that seeps in. On the other hand, the elastic waterproof main layer can deform synchronously with the micro-cracks caused by thermal expansion and contraction and slight settlement of the substrate, always maintaining the integrity of the waterproof membrane and avoiding leakage problems caused by substrate deformation and cracking of conventional waterproof coatings.

[0013] 2. Through the design of the crack-resistant fiber base layer, the crack-resistant fiber base layer of the crack-resistant reinforcement layer contains fiberglass mesh, which can prevent cracks from extending to the elastic decorative surface layer. The elastic transition layer can also buffer the elastic difference between layers and prevent the decorative layer from cracking independently. In terms of weather resistance and decoration, the weather-resistant protective base layer of the surface protective cover contains UV-531 ultraviolet absorber, which can reduce the aging damage of ultraviolet rays to the coating. The fluorosilicone resin of the weather-resistant protective surface layer gives it superhydrophobic and stain-resistant properties, and rainwater can wash away dust and keep the surface clean. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure provided by an embodiment of the present utility model; Figure 2A schematic diagram of the substrate treatment layer structure provided for an embodiment of this utility model; Figure 3 A schematic diagram of the alkali-resistant layer structure provided for an embodiment of this utility model; Figure 4 A schematic diagram of the elastic waterproof main layer structure provided for an embodiment of this utility model; Figure 5 A schematic diagram of the crack-resistant reinforcement layer structure provided for an embodiment of this utility model; Figure 6 A schematic diagram of the elastic decorative surface layer structure provided for an embodiment of this utility model; Figure 7 A schematic diagram of the surface protective cover structure provided for an embodiment of this utility model.

[0016] In the diagram: 1. Substrate treatment layer; 101. Substrate cleaning layer; 102. Interface penetration layer; 2. Alkali-resistant layer; 201. Alkali-resistant sealing underlayer; 202. Alkali-resistant sealing toplayer; 203. Thin leveling layer; 3. Elastic waterproof main layer; 301. Elastic waterproof underlayer; 302. Elastic waterproof intermediate layer; 303. Elastic waterproof toplayer; 4. Crack-resistant reinforcement layer; 401. Crack-resistant fiber underlayer; 402. Crack-resistant fiber toplayer; 403. Elastic transition layer; 5. Elastic decorative toplayer; 501. Elastic putty leveling layer; 502. Elastic decorative primer; 503. Elastic decorative topcoat; 6. Surface protective cover layer; 601. Weather-resistant protective underlayer; 602. Weather-resistant protective toplayer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0018] Reference Figures 1-4This technical solution provides an elastic waterproof putty powder coating structure, including a substrate treatment layer 1. The outer surface of the substrate treatment layer 1 is sequentially provided with an alkali-resistant layer 2, an elastic waterproof main layer 3, a crack-resistant reinforcing layer 4, an elastic decorative surface layer 5, and a surface protective cover layer 6. The substrate treatment layer 1 includes a substrate cleaning layer 101 and an interface penetration layer 102. The substrate cleaning layer 101 is composed of a neutral detergent and high-pressure water, used to remove surface dust, oil, release agents, and other contaminants from the substrate surface, preventing contaminants from hindering interface bonding and avoiding acidic or alkaline conditions. The cleaning agent corrodes the substrate, preventing a decrease in substrate strength. High-pressure water rinsing can unclog the tiny pores on the substrate surface, preparing it for subsequent penetration layers. The interface penetration layer 102 is composed of acrylic-modified epoxy penetrant. The low-viscosity penetrant can penetrate 2-3mm into the substrate pores, forming anchoring micelles, upgrading the coating and substrate from surface adhesion to mechanical bonding, sealing the surface capillaries of the substrate, reducing the absorption of alkaline substances in subsequent alkali-resistant and waterproof layers, and ensuring compatibility with subsequent water-based putty layers, avoiding interlayer repulsion between solvent-based interface agents and water-based layers.

[0019] The alkali-resistant layer 2 includes an alkali-resistant sealing underlayer 201, which is composed of an alkali-resistant emulsion and zinc oxide. Zinc oxide can neutralize alkaline substances precipitated from the substrate, preventing alkali bloom that could lead to chalking and discoloration of the subsequent coating. The alkali-resistant emulsion forms a dense film, blocking the upward migration channels of alkaline substances, extending the service life of the coating, and is chemically compatible with the interface penetration layer 102 to avoid interlayer delamination. An alkali-resistant sealing surface layer 202 is provided on the outside of the alkali-resistant sealing underlayer 201. The alkali-resistant sealing surface layer 202 is composed of an alkali-resistant emulsion and ultrafine talc powder. The ultrafine talc powder fills the tiny pinholes of the alkali-resistant sealing underlayer 201, further improving the alkali resistance and sealing performance, optimizing the surface roughness, providing a good bonding interface for the subsequent leveling layer, maintaining low elasticity, and avoiding stress differences caused by thermal expansion and contraction with the substrate. The outer layer of the alkali-resistant sealing layer 202 is covered by a thin leveling layer 203, which is composed of pure acrylic emulsion, heavy calcium carbonate powder, and wood fiber. The wood fiber enhances the putty's anti-sagging properties and prevents sagging during vertical surface construction. The elastic waterproof main layer 3 includes an elastic waterproof underlayer 301, which is composed of highly elastic pure acrylic emulsion and nano-silane. The low-viscosity emulsion can penetrate into the tiny pores of the leveling layer, forming a capillary sealing layer that blocks water seepage channels in the base layer. The nano-silane imparts hydrophobic properties to the interlayer, allowing even small amounts of water to drain through the hydrophobic effect, preventing water accumulation. An elastic waterproof underlayer 301 is placed outside the thin leveling layer 203. An elastic waterproof intermediate layer 302 is placed outside the elastic waterproof underlayer 301. The elastic waterproof intermediate layer 302 is composed of highly elastic pure acrylic emulsion, chopped polyester fibers, and lightweight calcium carbonate. The chopped polyester fibers disperse stress, increasing the tensile strength of the waterproof membrane and preventing breakage due to substrate tension. The lightweight calcium carbonate optimizes the coating density, preventing excessive thickness and sagging, while also reducing costs. An elastic waterproof top layer 303 is placed outside the elastic waterproof intermediate layer 302. The elastic waterproof top layer 303 is composed of highly elastic pure acrylic emulsion and titanium dioxide. Titanium dioxide absorbs ultraviolet rays, preventing emulsion aging and degradation, extending the weather resistance of the waterproof layer, forming a smooth and dense waterproof membrane surface, reducing water penetration channels, and improving adhesion to the subsequent crack-resistant layer.

[0020] Reference Figures 1-4Based on the same concept as Embodiment 1 above, this embodiment also proposes a crack-resistant reinforcing layer 4 including a crack-resistant fiber underlayer 401. The crack-resistant fiber underlayer 401 is disposed outside the elastic waterproof main layer 3. The crack-resistant fiber underlayer 401 is composed of elastic putty powder and fiberglass mesh. The fiberglass mesh has high tensile strength in both the transverse and longitudinal directions, which can block the extension of cracks and avoid waterproof cracks and decorative cracks. The putty powder wraps the mesh to form a composite structure of fiber and putty, which improves stress dispersion efficiency. Moreover, it belongs to the same elastic system as the waterproof surface layer, avoiding peeling caused by interlayer elasticity mismatch. A crack-resistant fiber top layer 402 is provided on the outside of the crack-resistant fiber base layer 401. The crack-resistant fiber top layer 402 is composed of elastic putty powder and ultrafine glass powder. The ultrafine glass powder fills the gaps in the bottom mesh fabric, making the base surface smooth and providing a uniform base surface for the subsequent decorative layer. An elastic transition layer 403 is provided on the outside of the crack-resistant fiber top layer 402. The elastic transition layer 403 is composed of flexible acrylic emulsion and talc powder. The low-thickness and high-elasticity design can buffer the elastic difference between the crack-resistant layer and the decorative layer, avoiding cracking caused by direct contact between the hard and soft layers. The emulsion has good elasticity. Good wetting properties enhance the adhesion between the decorative layer and the crack-resistant layer, seal the micropores in the crack-resistant layer, and prevent pigments from the decorative layer from seeping into the crack-resistant layer and causing color differences. The elastic decorative surface layer 5 includes an elastic putty leveling layer 501, which is placed outside the elastic transition layer 403. The elastic putty leveling layer 501 is composed of ultrafine elastic putty powder and cellulose ether. The ultrafine particles can fill the micro-imperfections in the transition layer, achieving mirror-level smoothness and ensuring uniform color of the decorative layer. The cellulose ether extends the open time, facilitates leveling during construction, and avoids over-applying putty. Rapid drying can lead to cracking. Therefore, an elastic decorative primer 502 is applied to the exterior of the elastic putty leveling layer 501. The elastic decorative primer 502 consists of an elastic acrylic primer and titanium dioxide paste. The titanium dioxide paste unifies the base color, preventing the color of the anti-cracking layer from affecting the topcoat color. The primer forms a sealing film, preventing topcoat solvents from penetrating the putty layer and causing swelling and delamination. An elastic decorative topcoat 503 is then applied to the exterior of the elastic decorative primer 502. The elastic decorative topcoat 503 consists of a weather-resistant elastic topcoat and inorganic pigments. The fluorocarbon acrylic emulsion has excellent weather resistance, preventing the topcoat from fading. The inorganic pigments have high lightfastness and colorfastness, and do not change color with ultraviolet radiation. The surface protective cover layer 6 includes a weather-resistant protective underlayer 601, which is placed on the outside of the elastic decorative topcoat 503. The weather-resistant protective underlayer 601 is composed of an acrylic emulsion containing an ultraviolet absorber (UV-531). UV-531 can absorb ultraviolet rays, reduce the aging and damage of ultraviolet rays to the underlying decorative topcoat and waterproof layer, and extend the system life. The acrylic emulsion is chemically compatible with the topcoat, avoiding the phenomenon of the topcoat being dissolved.The weather-resistant protective base layer 601 is provided with a weather-resistant protective surface layer 602. The weather-resistant protective surface layer 602 is composed of a fluorinated silicone resin anti-fouling emulsion and nano-silica. The fluorinated silicone resin gives the surface superhydrophobic properties, and rainwater can wash away surface dust, improving the anti-fouling effect. The nano-silica increases the surface hardness and avoids scratches on the topcoat caused by daily friction.

[0021] Specifically, the working process or principle of this elastic waterproof putty powder coating structure is as follows: moisture is doubly blocked by the interface penetration layer 102 and the elastic waterproof main layer 3. A small amount of water seeps in and is guided by the hydrophobic effect of the elastic waterproof bottom layer 301, eliminating the risk of leakage. The deformation stress of the substrate is resolved in three stages by the elastic waterproof main layer 3, the crack-resistant reinforcement layer 4, and the elastic transition layer 403, eliminating the risk of cracks extending to the decorative layer. The interlayers achieve stable adhesion without delamination through the mechanical interlocking of the interface penetration layer 102 and the chemical compatibility of the water-based systems of each layer. The surface protective cover layer 6 resists ultraviolet rays, pollution, and friction, protecting the internal core layer elastic waterproof main layer 3 and elastic decorative surface layer 5 from aging, ultimately achieving a comprehensive effect of waterproof durability, crack resistance, and long-lasting decorative color.

Claims

1. An elastic waterproof putty powder coating structure, comprising a substrate treatment layer (1), characterized in that, The outer surface of the substrate treatment layer (1) is sequentially provided with an alkali-resistant layer (2), an elastic waterproof main layer (3), a crack-resistant reinforcing layer (4), an elastic decorative surface layer (5), and a surface protective cover layer (6). The elastic waterproof main layer (3) includes an elastic waterproof bottom layer (301), which is disposed outside the thin leveling layer (203). An elastic waterproof middle layer (302) is disposed outside the elastic waterproof bottom layer (301), and an elastic waterproof top layer (303) is disposed outside the elastic waterproof middle layer (302). The crack-resistant reinforcing layer (4) includes a crack-resistant fiber underlayer (401), which is disposed outside the elastic waterproof main layer (3). A crack-resistant fiber surface layer (402) is disposed outside the crack-resistant fiber underlayer (401), and an elastic transition layer (403) is disposed outside the crack-resistant fiber surface layer (402).

2. The elastic waterproof putty powder coating structure according to claim 1, characterized in that, The substrate treatment layer (1) includes a substrate cleaning layer (101) and an interface penetration layer (102), wherein the interface penetration layer (102) is composed of an acrylic modified epoxy penetrant.

3. The elastic waterproof putty powder coating structure according to claim 1, characterized in that, The alkali-resistant layer (2) includes an alkali-resistant sealing bottom layer (201), an alkali-resistant sealing surface layer (202) is provided on the outside of the alkali-resistant sealing bottom layer (201), and a thin leveling layer (203) is provided on the outer layer of the alkali-resistant sealing surface layer (202).

4. The elastic waterproof putty powder coating structure according to claim 1, characterized in that, The elastic decorative surface layer (5) includes an elastic putty leveling layer (501), which is disposed outside the elastic transition layer (403). An elastic decorative primer (502) is disposed outside the elastic putty leveling layer (501), and an elastic decorative topcoat (503) is disposed outside the elastic decorative primer (502).

5. The elastic waterproof putty powder coating structure according to claim 1, characterized in that, The surface protective cover layer (6) includes a weather-resistant protective base layer (601), which is disposed on the outside of the elastic decorative topcoat (503), and a weather-resistant protective surface layer (602) is disposed on the outside of the weather-resistant protective base layer (601).

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