Hydrophobic structure of sand-containing reflective heat-insulating colorful coating layer
By setting up waterproof and hydrophobic layers and drainage channels between the coating layers, combined with waterproof curtains and beveled edges, and using specific materials to improve waterproof performance, the problem of insufficient waterproof and hydrophobic performance of the coating layers is solved, achieving effective rainwater drainage and structural protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-14
AI Technical Summary
Existing sand-containing reflective heat-insulating multicolor coatings have poor waterproof and hydrophobic properties, allowing rainwater to easily penetrate and affecting the structural safety of the wall.
A waterproof and hydrophobic layer is set between the putty layer and the sand-containing reflective heat-insulating multicolor coating layer. A hydrophobic channel is opened on the hydrophobic layer, and a waterproof curtain layer and a bevel are set in the hydrophobic channel. Combined with the waterproof substrate and the second waterproof curtain layer, polyurethane and polyvinyl chloride materials are used to improve the waterproof performance.
It effectively drains rainwater, prevents rainwater seepage, protects the integrity of the wall structure, extends the service life of the coating layer, and improves waterproof and water-repellent performance.
Smart Images
Figure CN224119826U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of reflective heat insulation materials technology, and in particular to a hydrophobic structure of a sand-containing reflective heat insulation multicolor coating layer. Background Technology
[0002] Sand-containing reflective heat-insulating multicolor coating is a new type of exterior wall coating system that integrates heat insulation, reflection, and decoration functions. It achieves a combination of high efficiency, energy saving, and aesthetic appeal through a special process. Applied to the surface of the putty layer on the exterior wall, it typically consists of a base treatment layer, a reflective heat insulation layer, an elastic protective layer, and a multicolor decorative layer. It features excellent high-efficiency heat insulation and reflection performance, superior weather resistance, environmental friendliness, energy saving, and strong decorative properties. However, existing sand-containing reflective heat-insulating multicolor coatings have poor waterproof and hydrophobic properties. After prolonged use, rainwater easily penetrates and passes through the coating during rainy weather, further seeping into the wall and affecting its structural safety. Therefore, improvements are needed. Utility Model Content
[0003] In order to improve the waterproof and hydrophobic properties of sand-containing reflective heat-insulating multicolor coating layers and extend their service life, this application provides a hydrophobic structure for sand-containing reflective heat-insulating multicolor coating layers.
[0004] The hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer provided in this application adopts the following technical solution:
[0005] A hydrophobic structure for a sand-containing reflective heat-insulating multicolor coating layer includes a putty layer disposed on the surface of an exterior wall and a sand-containing reflective heat-insulating multicolor coating layer disposed on the surface of the putty layer. A waterproof and hydrophobic layer is disposed between the putty layer and the sand-containing reflective heat-insulating multicolor coating layer. A plurality of drainage channels are formed on the side of the waterproof and hydrophobic layer facing the sand-containing reflective heat-insulating multicolor coating layer. All of the drainage channels are formed in a vertical direction. A first waterproof curtain layer is disposed on the inner wall of the drainage channels.
[0006] By adopting the above technical solution, rainwater will seep through the sand-containing reflective heat-insulating multicolor coating layer and enter the drainage channels of the waterproof and water-repellent layer. It will be blocked by the first waterproof curtain layer and guided vertically to prevent further infiltration of rainwater, thus ensuring the integrity and safety of the wall structure.
[0007] Preferably, the inner wall of the drainage channel is provided with several bevels, which are distributed sequentially along the height direction of the drainage channel, and the side of the bevels closest to the sand-containing reflective heat-insulating multicolor coating layer is inclined towards the ground.
[0008] By adopting the above technical solution, the inverted edge can be set so that rainwater can flow downward along the inverted edge, preventing rainwater from adhering to the surface of the first waterproof curtain layer for a long time and causing the first waterproof curtain layer to be corroded. This can improve the waterproof and hydrophobic performance of this application and extend the service life of the hydrophobic structure of this application.
[0009] Preferably, a waterproof substrate is provided between the waterproof and hydrophobic layer and the sand-containing reflective heat-insulating multicolor coating layer, and a second waterproof curtain layer is provided on the side of the waterproof substrate facing the waterproof and hydrophobic layer.
[0010] By adopting the above technical solution, the waterproof substrate and the second waterproof curtain layer can further improve the waterproof performance of the hydrophobic structure of this application, reduce the probability of rainwater seepage, and thus ensure the dryness of the inside of the drainage channel, so as to maintain the waterproof and hydrophobic performance of the hydrophobic structure of this application for a long time.
[0011] Preferably, the waterproof substrate has a plurality of chamfers on the side facing the drainage channel. The plurality of chamfers pass through the second waterproof curtain layer and enter the drainage channel. The plurality of chamfers are distributed along the height direction of the waterproof substrate. The side of the chamfers on the waterproof substrate away from the waterproof substrate is inclined toward the ground. The chamfers on the waterproof substrate and the chamfers in the drainage channel are spaced apart.
[0012] By adopting the above technical solution and setting two rows of inverted edges, the flow of rainwater in the drainage channel can be further improved, preventing rainwater from adhering to the surface of the waterproof curtain for a long time and causing corrosion of the waterproof curtain, thus extending the service life of the first and second waterproof curtain layers.
[0013] Preferably, the inner wall of the drainage channel is provided with a plurality of supporting ribs, which abut against the drainage channel and the waterproof substrate.
[0014] By adopting the above technical solution, the supporting ribs can ensure the structural strength inside the drainage channel, reduce the problem of drainage channel collapse affecting the drainage effect, and thus extend the service life of the drainage structure of this application.
[0015] Preferably, a layer of quartz sand is provided at the bottom opening of the drainage channel.
[0016] By adopting the above technical solution, setting a quartz sand layer can allow the water in the drainage channel to gradually seep out and prevent external impurities from entering the drainage channel, causing blockage and preventing drainage.
[0017] Preferably, the waterproof and hydrophobic layer is made of polyurethane waterproof coating.
[0018] By adopting the above technical solution, polyurethane waterproof coating is a reaction-curing waterproof material made from isocyanate, polyether and other main raw materials through addition polymerization. It has advantages such as excellent water resistance, weather resistance, environmental protection and safety. The waterproof and hydrophobic layer made of polyurethane waterproof coating can inhibit rainwater from further seeping in and achieve excellent waterproof and hydrophobic effects.
[0019] Preferably, the waterproof substrate is made of polyvinyl chloride waterproof membrane.
[0020] By adopting the above technical solutions, polyvinyl chloride (PVC) waterproof membrane is a high-molecular waterproof material made of PVC resin as the main raw material, with the addition of special additives and anti-aging components, and produced by advanced equipment and processes. It has the advantages of long service life, excellent mechanical properties, strong weather resistance, and strong corrosion resistance. The waterproof substrate made of PVC waterproof membrane can effectively inhibit rainwater infiltration and protect the wall structure.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. After rainwater seeps through the sand-containing reflective heat-insulating multicolor coating layer, it will enter the drainage channels of the waterproof and water-repellent layer and be blocked by the first waterproof curtain layer. The rainwater will be guided vertically to prevent further infiltration and ensure the integrity and safety of the wall structure.
[0023] 2. The inverted edge allows rainwater to flow downwards along it, preventing rainwater from adhering to the surface of the first waterproof curtain layer for a long time and causing corrosion of the first waterproof curtain layer. This improves the waterproof and hydrophobic performance of this application and extends the service life of the hydrophobic structure of this application.
[0024] 3. The addition of a waterproof substrate and a second waterproof curtain layer can further improve the waterproof performance of the hydrophobic structure of this application, reduce the probability of rainwater seepage, and thus ensure the dryness of the inside of the drainage channel, so as to maintain the waterproof and hydrophobic performance of the hydrophobic structure of this application for a long time. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer according to an embodiment of this application.
[0026] Figure 2 This is a cross-sectional view of the hydrophobic structure according to an embodiment of this application.
[0027] Explanation of reference numerals in the attached drawings: 1. Exterior wall; 2. Putty layer; 3. Sand-containing reflective heat-insulating multicolor coating layer; 4. Waterproof and water-repellent layer; 5. Drainage channel; 6. First waterproof curtain layer; 7. Beveled edge; 8. Waterproof substrate; 9. Second waterproof curtain layer; 10. Supporting rib; 11. Quartz sand layer. Detailed Implementation
[0028] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0029] This application discloses a hydrophobic structure for a sand-containing reflective heat-insulating multicolor coating layer. (Refer to...) Figure 1 and Figure 2 It includes a putty layer 2 disposed on the surface of the exterior wall 1 and a sand-containing reflective heat-insulating multicolor coating layer 3 disposed on the surface of the putty layer 2. A waterproof and hydrophobic layer 4 is disposed between the putty layer 2 and the sand-containing reflective heat-insulating multicolor coating layer 3. In this embodiment, the waterproof and hydrophobic layer 4 is made of polyurethane waterproof coating.
[0030] Reference Figure 1 and Figure 2 The waterproof and hydrophobic layer 4 has several drainage channels 5 on the side facing the sand-containing reflective heat-insulating multicolor coating layer 3. The drainage channels 5 are opened in the vertical direction. The inner wall of the drainage channel 5 is provided with a first waterproof curtain layer 6. The inner wall of the drainage channel 5 is provided with several inverted edges 7. The inverted edges 7 pass through the first waterproof curtain layer 6. The inverted edges 7 are distributed along the height direction of the drainage channel 5. The end of the inverted edge 7 away from the putty layer 2 is inclined towards the ground to allow rainwater to slide along the inverted edge 7 and prevent rainwater from adhering to the surface of the first waterproof curtain layer 6 for a long time, which would cause the waterproof curtain to corrode.
[0031] Reference Figure 1 and Figure 2 A waterproof base is provided between the waterproof and hydrophobic layer 4 and the sand-containing reflective heat-insulating multicolor coating layer 3. In this embodiment, the waterproof base plate 8 is made of polyvinyl chloride waterproof membrane. A second waterproof curtain layer 9 is provided on the side of the waterproof base plate 8 facing the waterproof and hydrophobic layer 4. Several supporting ribs 10 are provided on the inner wall of the drainage channel 5. The supporting ribs 10 abut against the drainage channel 5 and the waterproof base plate 8 to reduce the probability of the drainage channel 5 collapsing.
[0032] Reference Figure 1 and Figure 2 The waterproof substrate 8 has several chamfered edges 7 on the side facing the drainage channel 5. The chamfered edges 7 pass through the second waterproof curtain layer 9 and enter the drainage channel 5. The chamfered edges 7 away from the waterproof substrate 8 are inclined towards the ground. The chamfered edges 7 on the waterproof substrate 8 and the chamfered edges 7 on the drainage channel 5 are staggered to improve the waterproof and water-repellent performance of the drainage channel 5.
[0033] Reference Figure 1 and Figure 2 A quartz sand layer 11 is provided at the bottom of the drainage channel 5 to allow rainwater to seep out and prevent external impurities from entering and clogging the drainage channel 5.
[0034] The implementation principle of the hydrophobic structure of the sand-containing reflective heat-insulating multicolor coating layer in this application embodiment is as follows: After rainwater seeps through the sand-containing reflective heat-insulating multicolor coating layer 3, it enters the drainage channel 5 of the waterproof and hydrophobic layer 4 and is blocked by the first waterproof curtain layer 6. The rainwater is guided vertically to prevent further infiltration and ensure the integrity and safety of the wall structure. The inverted edge 7 allows rainwater to flow downward along the inverted edge 7, preventing rainwater from adhering to the surface of the first waterproof curtain layer 6 for a long time and causing corrosion of the first waterproof curtain layer 6. This can improve the waterproof and hydrophobic performance of this application and extend the service life of the hydrophobic structure. The waterproof substrate 8 and the second waterproof curtain layer 9 can further improve the waterproof performance of the hydrophobic structure of this application.
[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 hydrophobic structure for a sand-containing reflective heat-insulating multicolor coating layer, comprising a putty layer disposed on the surface of an exterior wall and a sand-containing reflective heat-insulating multicolor coating layer disposed on the surface of the putty layer, characterized in that: A waterproof and hydrophobic layer is provided between the putty layer and the sand-containing reflective heat-insulating multicolor coating layer. The side of the waterproof and hydrophobic layer facing the sand-containing reflective heat-insulating multicolor coating layer has a plurality of drainage channels. All of the drainage channels are opened in a vertical direction. A first waterproof curtain layer is provided on the inner wall of the drainage channels.
2. The hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer according to claim 1, characterized in that: The inner wall of the drainage channel is provided with several bevels, which are distributed sequentially along the height direction of the drainage channel. The side of the bevels closest to the sand-containing reflective heat-insulating multicolor coating layer is inclined towards the ground.
3. The hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer according to claim 2, characterized in that: A waterproof substrate is provided between the waterproof and hydrophobic layer and the sand-containing reflective heat-insulating multicolor coating layer, and a second waterproof curtain layer is provided on the side of the waterproof substrate facing the waterproof and hydrophobic layer.
4. The hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer according to claim 3, characterized in that: The waterproof substrate has several chamfers on the side facing the drainage channel. The chamfers pass through the second waterproof curtain layer and enter the drainage channel. The chamfers are distributed along the height direction of the waterproof substrate. The side of the chamfers on the waterproof substrate away from the waterproof substrate is inclined towards the ground. The chamfers on the waterproof substrate and the chamfers in the drainage channel are spaced apart.
5. The hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer according to claim 3, characterized in that: The inner wall of the drainage channel is provided with several supporting ribs, which abut against the drainage channel and the waterproof substrate.
6. The hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer according to claim 1, characterized in that: A layer of quartz sand is provided at the bottom opening of the drainage channel.
7. The hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer according to claim 1, characterized in that: The waterproof and hydrophobic layer is made of polyurethane waterproof coating.
8. The hydrophobic structure of a sand-containing reflective heat-insulating multicolor coating layer according to claim 3, characterized in that: The waterproof substrate is made of polyvinyl chloride waterproof membrane.