Geomembrane with good flame retardance

Abstract

The utility model relates to the technical field of geomembranes, and discloses a geomembrane with good flame retardance, which comprises a membrane body, a rubber clamping strip is fixedly arranged at the position, close to the front side, of the lower end of the membrane body, a rubber strip is fixedly arranged at the position, close to the rear side, of the upper end of the membrane body, a clamping groove is formed in the upper end of the rubber strip, and the membrane body comprises a reinforcing layer. A first anti-leakage layer is fixedly arranged at the upper end of the reinforcing layer, a first flame-retardant layer is fixedly arranged at the upper end of the first anti-leakage layer, an anti-ultraviolet layer is fixedly arranged at the upper end of the first flame-retardant layer, a second anti-leakage layer is fixedly arranged at the lower end of the reinforcing layer, and a second flame-retardant layer is fixedly arranged at the lower end of the second anti-leakage layer. According to the geomembrane, due to the fact that the rubber clamping strips and the clamping grooves are arranged, when a plurality of geomembranes are covered, splicing can be conducted by clamping the rubber clamping strips into the clamping grooves, the sealing performance can be improved, and due to the fact that the inflaming retarding layer is arranged, spreading of flames can be effectively delayed or stopped.

Description

Technical Field

[0001] The utility model relates to the technical field of geomembranes, in particular to a geomembrane with good flame retardancy. Background Technique

[0002] A geomembrane is a synthetic material used in civil engineering and environmental engineering, mainly used to prevent soil erosion, isolate different soil layers, control the groundwater level, etc. It is usually made of high-molecular materials such as polyethylene (PE) and polypropylene (PP), and has high waterproofness and chemical corrosion resistance. Common applications include: preventing water seepage in reservoirs, dams, underground parking lots, etc.; as an isolation layer to prevent garbage from seeping and polluting groundwater; in road construction, slope protection and other projects, enhancing soil stability and preventing erosion; in farmland, preventing water evaporation or reducing water loss.

[0003] Most of the existing geomembranes are mainly made of high-density polyethylene, and most geomembranes do not have a flame retardant function. High-density polyethylene is a widely used plastic material and does not have self-extinguishing properties, which means that once it catches fire, it will not automatically go out and requires external intervention to extinguish the fire source. Once exposed to an open flame or in special occasions, it is easy to burn and there are potential safety hazards.

[0004] Therefore, those skilled in the art have provided a geomembrane with good flame retardancy to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a geomembrane with good flame retardancy is proposed. By setting rubber strips and slots, when covering multiple geomembranes, they can be spliced by snapping the rubber strips into the slots, thereby improving the sealing performance. And a flame retardant layer is provided, which can effectively delay or prevent the spread of fire.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A geomembrane with good flame retardancy, including a membrane body. A rubber strip is fixedly arranged at the front side of the lower end of the membrane body, a rubber strip is fixedly arranged at the rear side of the upper end of the membrane body, and a slot is opened at the upper end of the rubber strip;

[0008] The membrane body includes a reinforcing layer. A first anti-seepage layer is fixedly arranged at the upper end of the reinforcing layer, a first flame retardant layer is fixedly arranged at the upper end of the first anti-seepage layer, an anti-ultraviolet layer is fixedly arranged at the upper end of the first flame retardant layer, a second anti-seepage layer is fixedly arranged at the lower end of the reinforcing layer, a second flame retardant layer is fixedly arranged at the lower end of the second anti-seepage layer, and a corrosion-resistant layer is fixedly arranged at the lower end of the second flame retardant layer.

[0009] Further, the reinforcing layer is provided as a geotextile.

[0010] Further, both the first anti-seepage layer and the second anti-seepage layer are provided as high-density polyethylene.

[0011] Further, both the first flame retardant layer and the second flame retardant layer are provided as aluminum hydroxide inorganic flame retardant coatings.

[0012] Further, the anti-ultraviolet layer is provided as an acrylic coating.

[0013] Further, the corrosion-resistant layer is provided as a polyvinyl chloride coating.

[0014] Further, a plurality of rubber protrusions are fixedly provided at the lower end of the film body.

[0015] The utility model has the following beneficial effects:

[0016] A geomembrane with good flame retardancy proposed by the utility model. The geomembrane is provided with a first anti-seepage layer and a second anti-seepage layer, and a reinforcing layer is arranged between the first anti-seepage layer and the second anti-seepage layer, which can provide additional protection for the two anti-seepage layers. Even if one layer has problems, the other layer can still play the anti-seepage role, thus reducing the seepage risk. The middle reinforcing layer can effectively resist the puncture of soil particles, sharp objects or mechanical pressure, reducing the damage to the anti-seepage membrane. And two flame retardant layers are provided, which can effectively delay or prevent the spread of fire, reduce the damage of fire to the geomembrane system, and protect other structures and the environment from the influence of fire. In case of fire, the flame retardant layer can reduce the burning rate of the geomembrane material, providing more time to deal with the fire or take evacuation measures. And a rubber strip is provided at the rear of the upper side of the film body and a card slot is opened, and a rubber card strip is provided at the front of the lower part of the film body. When covering multiple geomembranes, they can be spliced by clamping the rubber card strip into the card slot, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Isometric schematic diagram of a geomembrane with good flame retardancy of the utility model;

[0018] Figure 2 Bottom view schematic diagram of a geomembrane with good flame retardancy of the utility model;

[0019] Figure 3 Side sectional view schematic diagram of a geomembrane with good flame retardancy of the utility model;

[0020] Figure 4 Structural schematic diagram of a geomembrane with good flame retardancy of the utility model.

[0021] Legend description:

[0022] 1. Membrane body; 2. Rubber strip; 3. Card slot; 4. Rubber card strip; 5. Protrusion; 101. Reinforcement layer; 102. First anti-leakage layer; 103. Second anti-leakage layer; 104. First flame retardant layer; 105. Second flame retardant layer; 106. Anti-ultraviolet layer; 107. Corrosion-resistant layer. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Refer to Figure 1 、 Figure 2 、 Figure 3 , an embodiment provided by the present invention:

[0025] A geotextile membrane with good flame retardancy, including a membrane body 1, a rubber card strip 4 is fixedly arranged at the front side of the lower end of the membrane body 1, a rubber strip 2 is fixedly arranged at the rear side of the upper end of the membrane body 1, and a card slot 3 is opened at the upper end of the rubber strip 2;

[0026] The membrane body 1 includes a reinforcement layer 101, a first anti-leakage layer 102 is fixedly arranged at the upper end of the reinforcement layer 101, a first flame retardant layer 104 is fixedly arranged at the upper end of the first anti-leakage layer 102, an anti-ultraviolet layer 106 is fixedly arranged at the upper end of the first flame retardant layer 104, a second anti-leakage layer 103 is fixedly arranged at the lower end of the reinforcement layer 101, a second flame retardant layer 105 is fixedly arranged at the lower end of the second anti-leakage layer 103, a corrosion-resistant layer 107 is fixedly arranged at the lower end of the second flame retardant layer 105, and a plurality of rubber protrusions 5 are fixedly arranged at the lower end of the membrane body 1;

[0027] Specifically, by setting the rubber strip 4, rubber bar 2 and card slot 3, when covering multiple geomembranes, the rubber strip 4 can be snapped into the card slot 3, so that multiple geomembranes can be connected more tightly, thereby preventing liquid from flowing in through the covered gaps, improving the waterproof effect. By setting two anti-leakage layers, the risk of leakage can be reduced. Moreover, by setting multiple rubber protrusions 5 on the lower side of the geomembrane, direct contact between the geomembrane and the underlying soil or other layers can be effectively reduced, thereby reducing damage to the membrane surface caused by friction or compaction. In addition, the friction between the membrane body 1 and the bottom surface can be increased to prevent the membrane body 1 from easily sliding down under its own gravity. By setting the first flame retardant layer 104 and the second flame retardant layer 105, the flame retardant effect of the geomembrane can be better, effectively delaying or preventing the spread of fire, reducing the damage of fire to the geomembrane system, protecting other structures and the environment from the impact of fire, and enhancing the fire resistance performance. In case of fire, the flame retardant layer can reduce the burning rate of the geomembrane material, providing more time to respond to the fire or take evacuation measures. By setting the anti-ultraviolet layer 106, ultraviolet rays can be effectively blocked, reducing the aging and degradation of the material, thereby extending the service life of the geomembrane. By setting the corrosion-resistant layer 107, the geomembrane can be prevented from being damaged during long-term contact with the soil.

[0028] Refer to Figure 4 , the reinforcing layer 101 is set as geotextile, the first anti-leakage layer 102 and the second anti-leakage layer 103 are both set as high-density polyethylene, the first flame retardant layer 104 and the second flame retardant layer 105 are both set as aluminum hydroxide inorganic flame retardant coatings, the anti-ultraviolet layer 106 is set as an acrylic coating, and the corrosion-resistant layer 107 is set as a polyvinyl chloride coating;

[0029] Specifically, the geotextile is arranged between the first anti-leakage layer 102 and the second anti-leakage layer 103. The geotextile is woven from warp and weft yarns and has a regular mesh structure. High-density polyethylene has high strength and tensile properties, is suitable for bearing large loads, has good impermeability, chemical corrosion resistance and aging resistance. Aluminum hydroxide releases water at high temperatures to form a protective bauxite layer, which helps to isolate fire and heat. The acrylic coating has good ultraviolet resistance and weather resistance and is usually used in outdoor environments. The polyvinyl chloride coating has good chemical corrosion resistance and weather resistance, is suitable for various soil and water environments, and has a smooth surface and is easy to clean.

[0030] Working principle: When in use, the geomembrane is laid inside the base. When splicing multiple geomembranes, the rubber strip 4 can be inserted into the card slot 3 of another geomembrane, so that the covering parts of the two geomembranes are closer, resulting in better waterproof effect. The rubber protrusions 5 are arranged on the lower side of the membrane body 1, which can effectively reduce the direct contact between the geomembrane and the foundation soil or other layers, and at the same time increase the friction between the membrane body 1 and the bottom surface;

[0031] Secondly, the geomembrane is provided with a first anti-seepage layer 102 and a second anti-seepage layer 103, which can provide additional protection. Even if one layer has problems, the other layer can still play the anti-seepage role, thus reducing the seepage risk. And a strengthening layer 101 is arranged between the first anti-seepage layer 102 and the second anti-seepage layer 103, which can improve the strength of the geomembrane and avoid the geomembrane being easily damaged. The first flame-retardant layer 104 and the second flame-retardant layer 105 can improve the flame retardancy of the geomembrane and reduce the damage of fire to the geomembrane system. The anti-ultraviolet layer 106 and the corrosion-resistant layer 107 are respectively arranged on the upper and lower sides of the geomembrane. The anti-ultraviolet layer 106 can effectively block ultraviolet rays, reduce the aging and degradation of the material, and thus extend the service life of the geomembrane. The corrosion-resistant layer 107 can prevent the geomembrane from being damaged due to long-term contact with the soil.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A geomembrane with good flame retardancy, comprising a membrane body (1), characterized in that: A rubber strip (4) is fixedly arranged at the front side of the lower end of the membrane body (1), and a rubber strip (2) is fixedly arranged at the rear side of the upper end of the membrane body (1). A clamping groove (3) is formed at the upper end of the rubber strip (2). The membrane body (1) includes a strengthening layer (101). A first anti-leakage layer (102) is fixedly arranged at the upper end of the strengthening layer (101). A first flame-retardant layer (104) is fixedly arranged at the upper end of the first anti-leakage layer (102). An ultraviolet-resistant layer (106) is fixedly arranged at the upper end of the first flame-retardant layer (104). A second anti-leakage layer (103) is fixedly arranged at the lower end of the strengthening layer (101). A second flame-retardant layer (105) is fixedly arranged at the lower end of the second anti-leakage layer (103). A corrosion-resistant layer (107) is fixedly arranged at the lower end of the second flame-retardant layer (105).

2. A geomembrane with good flame retardancy according to claim 1, characterized in that: The strengthening layer (101) is made of geotextile.

3. A geomembrane with good flame retardancy according to claim 1, characterized in that: Both the first anti-leakage layer (102) and the second anti-leakage layer (103) are made of high-density polyethylene.

4. A geomembrane with good flame retardancy according to claim 1, characterized in that: Both the first flame-retardant layer (104) and the second flame-retardant layer (105) are made of aluminum hydroxide inorganic flame-retardant coatings.

5. A geomembrane with good flame retardancy according to claim 1, characterized in that: The ultraviolet-resistant layer (106) is made of acrylic coatings.

6. A geomembrane with good flame retardancy according to claim 1, characterized in that: The corrosion-resistant layer (107) is made of polyvinyl chloride coatings.

7. A geomembrane with good flame retardancy according to claim 1, characterized in that: A plurality of rubber protrusions (5) are fixedly arranged at the lower end of the membrane body (1).

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