Water-based self-textured plastic track

Abstract

The application relates to the technical field of plastic tracks, and discloses a water-based self-knitted plastic track which comprises, from bottom to top, a foundation leveling layer, a silicone waterproof layer, a micro-foamed elastic layer, a rubber buffer layer and a self-knitted surface layer, the bottom of the micro-foamed elastic layer is fixedly connected with a flexible reinforcing layer one, the top of the silicone waterproof layer is fixedly connected with the bottom of the flexible reinforcing layer one, the top of the micro-foamed elastic layer is fixedly connected with a water-based elastic film reinforcing layer, and the top of the water-based elastic film reinforcing layer is fixedly connected with the bottom of the rubber buffer layer. The application has the following advantages and effects: through the synergistic effect of the flexible reinforcing layer one, the water-based elastic film reinforcing layer and the flexible reinforcing layer two, the application can effectively avoid the peeling and cracking phenomenon between the layers of the plastic track caused by local stress concentration, can improve the tensile strength between the layers, and can further enhance the quality of the plastic track and effectively prolong the service life of the plastic track.

Description

Technical Field

[0001] This application relates to the field of plastic running track technology, and in particular to a water-based self-textured plastic running track. Background Technology

[0002] Self-textured synthetic running tracks are a new type of particle-free running track. Based on sports biomechanics, they upgrade the track to a professional "three-layer composite" structure and feature a unique closed-cell microbubble elastic interlayer. This allows for continuous kinetic energy generation during exercise and provides better protection against injuries. The self-texturing process uses a special polyurethane pure adhesive, which, through a chemical reaction, forms a polyurethane copolymer that automatically generates a uniform texture on the surface to achieve a certain coefficient of friction, meeting requirements such as slip resistance. The surface is more wear-resistant, more aesthetically pleasing, and does not shed particles.

[0003] In existing technologies, traditional self-textured plastic running tracks often use ordinary solvent-based adhesives to bond the elastic layer to the base layer and the surface layer. When athletes repeatedly step on and impact the track (such as the horizontal shear force when sprinting or landing in the long jump), the adhesion between the layers is easily lost due to localized stress concentration, resulting in cracking and peeling. This not only reduces the cushioning performance and service life but may also increase the risk of injury during exercise.

[0004] Therefore, we propose a water-based self-textured plastic running track to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a water-based self-textured plastic running track, which can effectively prevent peeling and cracking between the layers of the plastic running track due to localized stress concentration, and can improve the tensile strength between the layers, thereby enhancing the quality of the plastic running track and effectively extending its service life.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a water-based self-textured plastic running track, comprising a base leveling layer, an organosilicon waterproof layer, a micro-foamed elastic layer, a rubber buffer layer, and a self-textured surface layer arranged sequentially from bottom to top. A first flexible reinforcement layer is fixedly connected to the bottom of the micro-foamed elastic layer, the top of the organosilicon waterproof layer is fixedly connected to the bottom of the first flexible reinforcement layer, a water-based elastic adhesive film reinforcement layer is fixedly connected to the top of the micro-foamed elastic layer, the top of the water-based elastic adhesive film reinforcement layer is fixedly connected to the bottom of the rubber buffer layer, a second flexible reinforcement layer is fixedly connected to the top of the rubber buffer layer, and the self-textured surface layer is fixedly connected to the top of the second flexible reinforcement layer.

[0007] By adopting the above technical solutions, the base leveling layer can provide a flat foundation for the laying of the upper structure, reducing the stress concentration between layers caused by unevenness of the base layer. Utilizing the dual elastic structure of the micro-foamed elastic layer and the rubber buffer layer, the impact force during athletes' exercise can be absorbed in stages. Under the dual action, the transmission of impact force to parts such as the ankle, knee, and spine is greatly reduced, significantly reducing the risk of sports injuries such as stress fractures and joint strain. The textured surface design has excellent wear resistance and scratch resistance, reducing wear during daily use.

[0008] A further feature of this application is that the top of the self-textured surface layer is coated with an anti-ultraviolet coating.

[0009] By adopting the above technical solutions, it is possible to effectively resist the aging, fading, and embrittlement of the self-textured surface caused by outdoor ultraviolet radiation.

[0010] A further provision of this application is that the base leveling layer includes an asphalt layer, a crack-resistant coating, and a fiberglass grid. The crack-resistant coating is sprayed on top of the asphalt layer, the fiberglass grid is fixedly connected to the top of the crack-resistant coating, and the bottom of the silicone waterproof layer is fixedly connected to the top of the fiberglass grid.

[0011] By adopting the above technical solution, the fiberglass grid combined with the crack-resistant coating can directly resist the cracking of the asphalt layer 101 caused by thermal shrinkage or settlement, and block the transmission of cracks from the bottom layer.

[0012] A further provision of this application is that the fiberglass grid is bonded and fixed to the top of the crack-resistant coating by water-based PU adhesive.

[0013] A further feature of this application is that both the first flexible reinforcement layer and the second flexible reinforcement layer are made of polyester fiber mesh.

[0014] A further provision of this application is that the thickness of both the first flexible reinforcement layer and the second flexible reinforcement layer is set to 0.06-0.08 mm.

[0015] By adopting the above technical solutions, the design of flexible reinforcement layer one and flexible reinforcement layer two can further improve the tensile strength of the corresponding structural layers, adapt to minor deformations of the foundation, and reduce the risk of interlayer cracking in the foamed elastic layer and rubber buffer layer.

[0016] A further provision of this application is that the thickness of the water-based elastic adhesive film reinforcement layer is set to 1.5-2.5 mm.

[0017] By adopting the above technical solution, the adhesion between the micro-foamed elastic layer and the rubber buffer layer can be strengthened, and the stress can be dispersed. It can also improve the tensile strength between the foamed elastic layer and the rubber buffer layer.

[0018] A further setting of this application is that the thickness of the microfoamed elastic layer is set to 9-10 mm.

[0019] A further feature of this application is that the thickness of the rubber buffer layer is set to 1-2 mm.

[0020] A further setting of this application is that the thickness of the self-textured surface layer is set to 1-3 mm.

[0021] This application includes at least one of the following beneficial technical effects:

[0022] 1. This application utilizes the synergistic effect of flexible reinforcement layer one, water-based elastic film reinforcement layer and flexible reinforcement layer two to effectively prevent the peeling and cracking of plastic track layers caused by localized stress concentration, and can improve the tensile strength between layers, thereby enhancing the quality of plastic track and effectively extending its service life.

[0023] 2. This application utilizes the synergistic effect of the micro-foamed elastic layer and the rubber buffer layer to form a dual elastic structure, which can absorb the impact force of athletes during exercise in stages. Under the dual action, the impact force is significantly reduced to the ankle, knee, spine and other parts, and the risk of sports injuries such as stress fractures and joint strain is significantly reduced.

[0024] 3. This application utilizes a base leveling layer composed of an asphalt layer, a crack-resistant coating, and a fiberglass grid, which can provide a flat foundation for the laying of the upper structure and directly resist cracking of the asphalt layer caused by thermal shrinkage or settlement. It can block the transmission of cracks from the bottom layer and lay the foundation for preventing the generation of runway cracks. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0026] Figure 2 This is a cross-sectional three-dimensional structural schematic diagram of this embodiment.

[0027] Figure 3 This is a schematic diagram of the main sectional view of the basic leveling layer.

[0028] In the diagram, 1. Basic leveling layer; 101. Asphalt layer; 102. Crack-resistant coating; 103. Fiberglass grid; 2. Silicone waterproof layer; 3. Micro-foamed elastic layer; 4. Rubber buffer layer; 5. Self-textured surface layer; 6. Flexible reinforcement layer one; 7. Water-based elastic adhesive film reinforcement layer; 8. Flexible reinforcement layer two; 9. UV-resistant coating. Detailed Implementation

[0029] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] See Figures 1-3 This application provides a water-based self-textured plastic running track, comprising, from bottom to top, a base leveling layer 1, an organosilicon waterproof layer 2, a micro-foamed elastic layer 3, a rubber buffer layer 4, and a self-textured surface layer 5. A flexible reinforcement layer 6 is fixedly connected to the bottom of the micro-foamed elastic layer 3. The top of the organosilicon waterproof layer 2 is fixedly connected to the bottom of the flexible reinforcement layer 6. A water-based elastic film reinforcement layer 7 is fixedly connected to the top of the micro-foamed elastic layer 3. The top of the water-based elastic film reinforcement layer 7 is fixedly connected to the bottom of the rubber buffer layer 4. A flexible reinforcing layer 2 8 is fixedly connected to the top of the adhesive buffer layer 4. A self-textured surface layer 5 is fixedly connected to the top of the flexible reinforcing layer 2 8. The thickness of the self-textured surface layer 5 is set to 1-3mm. The self-textured surface layer 5 is a textured surface formed by spraying pure polyurethane adhesive, which has excellent wear resistance and scratch resistance, reducing wear during daily use. The design of the silicone waterproof layer 2 can block the penetration of groundwater vapor, avoid structural instability caused by the softening of the foundation leveling layer 1 due to moisture, and provide a durable and stable support platform for the upper elastic structure.

[0031] In this embodiment, the top of the self-textured surface layer 5 is coated with an anti-ultraviolet coating 9. The design of the anti-ultraviolet coating 9 can effectively resist the aging, fading and embrittlement of the self-textured surface layer 5 caused by outdoor ultraviolet radiation.

[0032] In this embodiment, the base leveling layer 1 includes an asphalt layer 101, a crack-resistant coating 102, and a fiberglass grid 103. The crack-resistant coating 102 is sprayed on top of the asphalt layer 101, and the fiberglass grid 103 is fixedly connected to the top of the crack-resistant coating 102. The bottom of the silicone waterproof layer 2 is fixedly connected to the top of the fiberglass grid 103. The base leveling layer 1, composed of the asphalt layer 101, the crack-resistant coating 102, and the fiberglass grid 103, provides a flat foundation for the upper structure, reducing stress concentration between layers caused by unevenness of the base layer. The fiberglass grid 103, in conjunction with the crack-resistant coating 102, can directly resist the thermal shrinkage of the asphalt layer 101. To prevent runway cracks from forming due to settlement, the construction process of the base leveling layer 1 is as follows: First, lay a layer of asphalt material on the ground. After the asphalt solidifies, it forms asphalt layer 101. Then, use a 3m straightedge to check the flatness of the asphalt layer 101 surface. The flatness deviation is ≤3mm / 3m. Grind the high parts and level the low parts with asphalt repair material. After the leveling process is completed, first apply a layer of crack-resistant coating 102, then lay a layer of fiberglass grid 103 (weight ≥200g / ㎡, tensile strength ≥50kN / m), and fix it with water-based PU adhesive. This completes the construction of the base leveling layer 1.

[0033] In this embodiment, the fiberglass grid 103 is glued and fixed to the top of the crack-resistant coating 102 with water-based PU adhesive.

[0034] In this embodiment, the thickness of the water-based elastic film reinforcement layer 7 is set to 1.5-2.5 mm. The water-based elastic film reinforcement layer 7 is made of water-based polyurethane, chopped polyester fibers (3-5 mm in length) and nano-calcium carbonate material. It can strengthen the adhesion between the micro-foamed elastic layer 3 and the rubber buffer layer 4, and has the effect of dispersing stress. It can effectively prevent the peeling and cracking phenomenon between the micro-foamed elastic layer 3 and the rubber buffer layer 4 caused by local stress concentration. It can also improve the tensile strength between the micro-foamed elastic layer 3 and the rubber buffer layer 4.

[0035] In this embodiment, both the first flexible reinforcement layer 6 and the second flexible reinforcement layer 8 are made of polyester fiber mesh. The thickness of both the first flexible reinforcement layer 6 and the second flexible reinforcement layer 8 is set to 0.06-0.08mm. The design of the first flexible reinforcement layer 6 and the second flexible reinforcement layer 8 can further improve the tensile strength of the corresponding structural layers, adapt to the small deformation of the foundation, and reduce the risk of interlayer cracking of the micro-foamed elastic layer 3 and the rubber buffer layer 4.

[0036] In this embodiment, the thickness of the micro-foamed elastic layer 3 is set to 9-10 mm. The micro-foamed elastic layer 3 is made of thermoplastic polyurethane material, which is foamed after being hot-melted to form a structure filled with closed micro air pockets. This structure can effectively absorb the impact force when athletes land, reducing joint damage, and also has a certain tensile strength to prevent track cracking caused by foundation settlement. The thickness of the rubber buffer layer 4 is set to 1-2 mm. The rubber buffer layer 4 is made of pure water-based polyurethane base and EPDM rubber particles. The mixing mass ratio of pure water-based polyurethane base and EPDM rubber particles is set to 1:4-1:5, which can effectively buffer the vertical or horizontal impact force generated by the athlete's body on the ground. It avoids direct transmission of impact force to the athlete's ankles, knees, hips, and spine, significantly reducing the risk of sports injuries. Moreover, it has excellent rebound performance when not under stress and can release stored energy when the athlete pushes off the ground to generate propulsion and improve athletic performance. By utilizing the dual elastic structure of the micro-foamed elastic layer 3 and the rubber buffer layer 4, it can absorb the impact force of the athlete during exercise in stages. The micro-foamed elastic layer 3 initially absorbs the impact through the deformation of the closed air bladder, and the rubber buffer layer 4 further buffers the remaining impact force in the vertical or horizontal direction. Under the dual action, the transmission of impact force to the ankles, knees, spine, and other parts is greatly reduced, significantly reducing the risk of sports injuries such as stress fractures and joint strain.

[0037] In this embodiment, the thickness of the micro-foamed elastic layer 3 is preferably 9.5 mm, the thickness of the rubber buffer layer 4 is preferably 1.5 mm, and the thickness of the self-textured surface layer 5 is preferably 2 mm.

[0038] With the above structure, the water-based self-textured plastic running track provided in this application, when in use, utilizes the base leveling layer 1 composed of asphalt layer 101, crack-resistant coating 102, and fiberglass grid 103 to provide a flat foundation for the upper structure, reducing stress concentration between layers caused by uneven base layer, and directly resisting cracking of asphalt layer 101 due to thermal shrinkage or settlement, blocking crack transmission from the bottom layer, and laying the foundation for preventing the formation of running track cracks; through the synergistic effect of micro-foamed elastic layer 3 and rubber buffer layer 4, a dual elastic structure is formed, and the micro-foamed elastic layer is made of thermoplastic polyurethane material. 3. The compression deformation of its internal closed air bladder can absorb some of the vertical impact energy. The elastic recovery characteristics of thermoplastic polyurethane material itself are used to initially disperse stress. The rubber buffer layer 4, made of water-based polyurethane base and EPDM rubber particles, can further absorb residual energy in the horizontal and vertical directions. At the same time, some energy is stored through the elastic deformation of the rubber particles. When the athlete pushes off the ground, the elastic potential energy stored in the rubber buffer layer 4 is released quickly to form a forward propulsion force. Combined with the tensile strength of the micro-foamed elastic layer 3, a dynamic balance between buffering and rebound is achieved, which protects the joints and improves sports efficiency.

[0039] By utilizing the water-based elastic film reinforcement layer 7, the adhesion between the micro-foamed elastic layer 3 and the rubber buffer layer 4 can be strengthened, and the stress dispersion effect can be achieved. This can effectively prevent the peeling and cracking phenomenon between the micro-foamed elastic layer 3 and the rubber buffer layer 4 caused by local stress concentration. In addition, it can also improve the tensile strength between the micro-foamed elastic layer 3 and the rubber buffer layer 4. With the use of flexible reinforcement layer 1 6 and flexible reinforcement layer 2 8, the tensile performance of the corresponding structural layers can be further improved, adapting to small deformations of the base, reducing the risk of interlayer cracking between the micro-foamed elastic layer 3 and the rubber buffer layer 4, thereby enhancing the quality of the plastic running track and effectively extending its service life.

Claims

1. A water-based self-textured plastic running track, characterized in that, The structure includes, from bottom to top, a base leveling layer (1), an organosilicon waterproof layer (2), a micro-foamed elastic layer (3), a rubber buffer layer (4), and a self-textured surface layer (5). The bottom of the micro-foamed elastic layer (3) is fixedly connected to a first flexible reinforcement layer (6). The top of the organosilicon waterproof layer (2) is fixedly connected to the bottom of the first flexible reinforcement layer (6). The top of the micro-foamed elastic layer (3) is fixedly connected to a second water-based elastic adhesive film reinforcement layer (7). The top of the second water-based elastic adhesive film reinforcement layer (7) is fixedly connected to the bottom of the rubber buffer layer (4). The top of the rubber buffer layer (4) is fixedly connected to a second flexible reinforcement layer (8). The self-textured surface layer (5) is fixedly connected to the top of the second flexible reinforcement layer (8).

2. The water-based self-textured plastic running track according to claim 1, characterized in that: The top of the self-textured surface layer (5) is coated with an anti-ultraviolet coating (9).

3. The water-based self-textured plastic running track according to claim 1, characterized in that: The basic leveling layer (1) includes an asphalt layer (101), a crack-resistant coating (102), and a fiberglass grid (103). The crack-resistant coating (102) is sprayed on the top of the asphalt layer (101), and the fiberglass grid (103) is fixedly connected to the top of the crack-resistant coating (102). The bottom of the silicone waterproof layer (2) is fixedly connected to the top of the fiberglass grid (103).

4. The water-based self-textured plastic running track according to claim 3, characterized in that: The fiberglass grid (103) is fixed to the top of the crack-resistant coating (102) by water-based PU adhesive.

5. The water-based self-textured plastic running track according to claim 1, characterized in that: Both the first flexible reinforcement layer (6) and the second flexible reinforcement layer (8) are made of polyester fiber mesh.

6. The water-based self-textured plastic running track according to claim 5, characterized in that: The thickness of both the first flexible reinforcement layer (6) and the second flexible reinforcement layer (8) is set to 0.06-0.08 mm.

7. The water-based self-textured plastic running track according to claim 1, characterized in that: The thickness of the water-based elastic adhesive film reinforcement layer (7) is set to 1.5-2.5 mm.

8. The water-based self-textured plastic running track according to claim 1, characterized in that: The thickness of the micro-foamed elastic layer (3) is set to 9-10 mm.

9. The water-based self-textured plastic running track according to claim 1, characterized in that: The thickness of the rubber buffer layer (4) is set to 1-2 mm.

10. The water-based self-textured plastic running track according to claim 1, characterized in that: The thickness of the self-textured surface layer (5) is set to 1-3 mm.

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