One-component thick-film silicon PU elastic layer and preparation method thereof

Abstract

The application discloses a single-component thick-film silicon PU elastic layer and relates to the field of design of silicon PU elastic layers. The single-component thick-film silicon PU elastic layer comprises one or more groups of mutually-stacked and adhered elastic base layers. The elastic base layer comprises an elastic fabric layer, a silicon PU coating and a drainage layer. The silicon PU coating is arranged on the upper surface of the elastic fabric layer, and the drainage layer is adhered to the upper surface of the silicon PU coating. The elastic fabric layer is provided in multiple, and the multiple elastic fabric layers are arranged in mutual stacking. The upper surface of the elastic fabric layer is integrally formed with a honeycomb grid, the lower surface of the elastic fabric layer is integrally formed with a plurality of first convex points, the plurality of first convex points are inserted into the honeycomb grid one by one, and the silicon PU coating is filled between two adjacent elastic fabric layers. The thickness of the elastic base layer can be set according to actual requirements, and the single-component thick-film silicon PU elastic layer is suitable for different sports venues.

Description

Technical Field

[0001] This invention relates to the field of silicone PU elastic layer design, and in particular to a single-component thick silicone PU elastic layer and its preparation method. Background Technology

[0002] With increasing environmental awareness, the requirements for environmentally friendly sports venues are also becoming stronger. Silicone polyurethane (SPU) is a common surface material for sports facilities, possessing good cushioning and elasticity, strong adhesion, a certain degree of self-healing, automatic leveling, simple construction, excellent aging resistance, and stable chemical properties after construction, making it less prone to bubbling. However, existing SPU surfaces lack elasticity, failing to provide athletes with adequate rebound force, making them susceptible to joint injuries.

[0003] There is a type of elastic silicone PU that can be thickly coated (application number 201921795388.3) that can solve the above problems. However, the thickness of its elastic layer is uniform and cannot be selected according to actual needs, making it difficult to be used in different sports. Moreover, elastic silicone PU often needs to be installed in outdoor environments, and since it does not have a drainage structure, water accumulation is likely to occur. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, the present invention provides a technical solution that can solve the above problems.

[0005] A single-component thick-coated silicone PU elastic layer includes one or more sets of elastic base layers that are stacked and adhered to each other.

[0006] The elastic base layer includes an elastic fabric layer, a silicone PU coating, and a drainage layer. The silicone PU coating is applied to the upper surface of the elastic fabric layer, and the drainage layer is adhered to the upper surface of the silicone PU coating.

[0007] The elastic fabric layer is provided in multiple ways, and the multiple elastic fabric layers are stacked on top of each other. The upper surface of the elastic fabric layer is integrally formed with a honeycomb grid, and the lower surface of the elastic fabric layer is integrally formed with a plurality of first protrusions. The plurality of first protrusions are inserted into the honeycomb grid one by one, and the silicone PU coating is filled between two adjacent elastic fabric layers.

[0008] The silicone PU coating uses silicone PU elastic paint.

[0009] As a further aspect of the present invention: a plurality of second protrusions are formed on the lower side of the drainage layer, and the plurality of second protrusions are inserted one by one into the honeycomb grid of the uppermost elastic fabric layer, and the silicone PU coating is also filled between the honeycomb grid and the drainage layer.

[0010] As a further aspect of the present invention: the upper surface of the elastic fabric layer is integrally formed with a plurality of recessed grooves, the recessed grooves being disposed one-to-one in the holes of the honeycomb grid, and the first protrusion and the second protrusion being respectively inserted into the recessed grooves for positioning.

[0011] As a further aspect of the present invention: a plurality of flow channels are formed in the flow-guiding layer, and the two ends of the flow channels respectively extend out of the two sides of the flow-guiding layer. A plurality of micropores are formed on the upper side of the flow-guiding layer, and the lower ends of the micropores are respectively connected to the flow channels.

[0012] As a further aspect of the present invention: a waterproof layer is coated on the upper side of the drainage layer, and the waterproof layer covers the plurality of micropores.

[0013] A method for preparing a single-component thick-coated silicone PU elastic layer includes the following steps:

[0014] S1. Installation location: Select a relatively level surface, clean it with water, and then wait for the surface to dry. After it is dry, use the silicone PU coating to fill any uneven areas on the surface.

[0015] S2. Select multiple elastic base layers of appropriate size and lay them on the ground to form an elastic plane. When installing the elastic base layer, first lay the elastic fabric layer on the ground as the base layer, and then fill the honeycomb grid of the elastic fabric layer with the silicone PU coating. The number of layers of the elastic fabric layer is more than 5, and multiple elastic fabric layers are stacked together through the silicone PU coating.

[0016] S3. Fill the uppermost elastic fabric layer with the silicone PU coating, then lay and install the drainage layer, and then coat the waterproof layer on the elastic base layer, allowing the waterproof material to seep into the gap between two adjacent elastic base layers. After the silicone PU coating and the waterproof layer have dried, a thick silicone PU elastic layer is obtained.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The silicone PU coating can be layered using elastic fabric layers. The thickness of the elastic base layer can be set according to actual needs, making it suitable for different sports venues.

[0019] 2. The surface after the elastic fabric layers are stacked can be in a relatively flat state. In addition, water will seep into the drainage layer for diversion, allowing the elastic base layer to dry quickly, thus reducing water accumulation.

[0020] 3. When multiple elastic base layers are stacked on top of each other, the first protrusion can be inserted into the honeycomb grid for positioning, ensuring the stability of the elastic base layer and preventing displacement before the silicone PU coating dries.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 yes Figure 1 A magnified structural diagram at point A;

[0025] Figure 3 yes Figure 1 A magnified structural diagram at point B;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the elastic base layer;

[0027] Figure 5 yes Figure 4 A magnified structural diagram at point C.

[0028] The diagram shows: 1. Elastic base layer; 11. Elastic fabric layer; 12. Silicone PU coating; 13. Drainage layer; 2. Honeycomb grid; 3. First protrusion; 4. Second protrusion; 5. Recessed groove; 6. Drainage channel; 7. Micropores; 8. Waterproof layer. Detailed Implementation

[0029] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0031] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] like Figure 1-5 As shown, a single-component thick-coated silicone PU elastic layer of the present invention includes one or more sets of elastic base layers 1 stacked and adhered to each other.

[0035] The elastic base layer 1 includes an elastic fabric layer 11, a silicone PU coating 12, and a drainage layer 13. The silicone PU coating 12 is coated on the upper surface of the elastic fabric layer 11, and the drainage layer 13 is adhered to the upper surface of the silicone PU coating 12.

[0036] Multiple elastic fabric layers 11 are provided and stacked on top of each other. A honeycomb grid 2 is integrally formed on the upper surface of each elastic fabric layer 11, and a plurality of first protrusions 3 are integrally formed on the lower surface of each elastic fabric layer 11. The plurality of first protrusions 3 are inserted into the honeycomb grid 2 one by one, and the silicone PU coating 12 is filled between two adjacent elastic fabric layers 11.

[0037] The silicone PU coating 12 is made of silicone PU elastic paint;

[0038] The principle is as follows: the silicone PU coating 12 can be stacked with the elastic fabric layer 11, and the thickness of the elastic base layer 1 can be set according to actual needs, making it suitable for different sports venues; the plane of the stacked elastic fabric layer 11 can be in a relatively flat state, and water will seep into the drainage layer 13 for drainage, allowing the elastic base layer 1 to dry quickly, thus reducing water accumulation; when multiple elastic base layers 1 are stacked together, the first protrusion 3 can be inserted into the honeycomb grid 2 for positioning, ensuring the stability of the elastic base layer 1, and preventing displacement before the silicone PU coating 12 dries.

[0039] As a further aspect of the present invention: the lower side of the drainage layer 13 is formed with a plurality of second protrusions 4, which are inserted one-to-one into the honeycomb grid 2 of the uppermost elastic fabric layer 1, and the silicone PU coating 12 is also filled between the honeycomb grid 2 and the drainage layer 13; thus ensuring the precise positioning of the drainage layer 13.

[0040] As a further aspect of the present invention: the upper surface of the elastic fabric layer 11 is integrally formed with a plurality of recessed grooves 5, the recessed grooves 5 being disposed one-to-one in the holes of the honeycomb grid 2, and the first protrusion 3 and the second protrusion 4 being respectively inserted into the recessed grooves 5 for positioning; before the silicone PU coating 12 dries, there will be no displacement between the multiple elastic fabric layers 11 and the drainage layer 13, ensuring the stability of the elastic base layer 1.

[0041] As a further aspect of the present invention: a plurality of flow channels 6 are formed within the flow channel 13, with both ends of the flow channels 6 extending out from the two sides of the flow channel 13 respectively; a plurality of micropores 7 are formed on the upper side of the flow channel 13, with the lower ends of the micropores 7 corresponding to the flow channels 6; accumulated water can seep into the flow channels 6 through the micropores 7, thereby draining the accumulated water from the elastic base layer 1, allowing the elastic base layer 1 to dry quickly.

[0042] As a further aspect of the present invention: a waterproof layer 8 is coated on the upper side of the drainage layer 13, and the waterproof layer 8 covers the plurality of micropores 7; the waterproof layer 8 can effectively reduce water seepage into the drainage layer 13, thereby achieving the effect of rapid drying.

[0043] As a further aspect of the present invention: the silicone PU coating 12 comprises the following components in weight percentage: 27-35% elastic resin, 1-3% tackifying resin, 0.2-1% drying agent, 1-3% elastic powder, 5-7% matting agent, 50-60% solvent, and 1-4% organosilicon additive; this allows the silicone PU coating 12 to possess both good elasticity and strong adhesion, thereby improving the stability of the elastic base layer 1.

[0044] A method for preparing a single-component thick-coated silicone PU elastic layer includes the following steps:

[0045] S1. Installation site: Select a relatively level ground, clean it with water, and then wait for the ground to dry. After it is dry, use the silicone PU coating 12 to fill the uneven areas of the ground.

[0046] S2. Select multiple elastic base layers 11 of appropriate size and lay them on the ground to form an elastic plane. When installing the elastic base layer 1, first lay the elastic fabric layer 11 on the ground as the base layer, and then fill the honeycomb grid 2 of the elastic fabric layer 11 with the silicone PU coating 12. The number of layers of the elastic fabric layer 11 is more than 5, and multiple elastic fabric layers 11 are stacked together through the silicone PU coating 12.

[0047] S3. Fill the uppermost elastic fabric layer 11 with the silicone PU coating 12, then lay and install the drainage layer 13, and then coat the waterproof layer 8 on the elastic base layer 1, allowing the waterproof material to seep into the gap between two adjacent elastic base layers 1. After the silicone PU coating 12 and the waterproof layer 8 have dried, a thick silicone PU elastic layer is obtained.

[0048] As a further aspect of the present invention: the elastic base layer 1 is laid with 1-2 layers.

[0049] As a further aspect of the present invention, the elastic fabric layer 11 has 20 layers.

[0050] The number of layers of the base layer 1 and the number of layers of the elastic fabric layer 11 can be set according to the actual sports venue, so that the thick coated silicone PU elastic layer has the elasticity suitable for the actual sports venue.

[0051] This embodiment does not impose any limitation on the shape, material, structure, etc. of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A single-component thick-coated silicone PU elastic layer, characterized in that: It includes one or more sets of elastic base layers that are stacked and adhered to each other. The elastic base layer includes an elastic fabric layer, a silicone PU coating, and a drainage layer. The silicone PU coating is applied to the upper surface of the elastic fabric layer, and the drainage layer is adhered to the upper surface of the silicone PU coating. The elastic fabric layer is provided in multiple ways, and the multiple elastic fabric layers are stacked on top of each other. The upper surface of the elastic fabric layer is integrally formed with a honeycomb grid, and the lower surface of the elastic fabric layer is integrally formed with a plurality of first protrusions. The plurality of first protrusions are inserted into the honeycomb grid one by one, and the silicone PU coating is filled between two adjacent elastic fabric layers. The lower side of the drainage layer is formed with a plurality of second protrusions, which are inserted one by one into the honeycomb grid of the uppermost elastic fabric layer. The silicone PU coating is also filled between the honeycomb grid and the drainage layer. The upper surface of the elastic fabric layer is integrally formed with a plurality of recessed grooves, which are respectively disposed in the holes of the honeycomb grid. The first protrusion and the second protrusion are respectively inserted into the recessed grooves for positioning. The drainage layer has a plurality of drainage channels formed therein, and the two ends of the drainage channels respectively extend out of the two sides of the drainage layer. The upper side of the drainage layer has a plurality of micropores formed therein, and the lower ends of the micropores are respectively connected to the drainage channels. A waterproof layer is coated on the upper side of the drainage layer, and the waterproof layer covers the plurality of micropores; The silicone PU coating uses silicone PU elastic paint.

2. The single-component thick-coated silicone PU elastic layer according to claim 1, characterized in that: The silicone PU coating comprises the following components in weight percentage: 27-35% elastic resin, 1-3% tackifying resin, 0.2-1% drier, 1-3% elastic powder, 5-7% matting powder, 50-60% solvent, and 1-4% silicone additive.

3. The method for preparing a single-component thick-coated silicone PU elastic layer as described in claim 1, characterized in that, Includes the following steps: S1. Installation location: Select a relatively level surface, clean it with water, and then wait for the surface to dry. After it is dry, use the silicone PU coating to fill any uneven areas on the surface. S2. Select multiple elastic base layers of appropriate size and lay them on the ground to form an elastic plane. When installing the elastic base layer, first lay the elastic fabric layer on the ground as the base layer, and then fill the honeycomb grid of the elastic fabric layer with the silicone PU coating. The number of layers of the elastic fabric layer is more than 5, and multiple elastic fabric layers are stacked together through the silicone PU coating. S3. Fill the uppermost elastic fabric layer with the silicone PU coating, then lay and install the drainage layer, and then coat the waterproof layer on the elastic base layer, allowing the waterproof material to seep into the gap between two adjacent elastic base layers. After the silicone PU coating and the waterproof layer have dried, a thick silicone PU elastic layer is obtained.

4. The method for preparing a single-component thick coated silicone PU elastic layer according to claim 3, characterized in that: The elastic base layer is laid in 1-2 layers.

5. The method for preparing a single-component thick coated silicone PU elastic layer according to claim 3, characterized in that: The elastic fabric layer has 20 layers.

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