Plastic woven impermeable cloth as well as preparation method and application thereof

Abstract

The invention belongs to the technical field of preparation of plastic woven anti-seepage cloth, and provides plastic woven anti-seepage cloth which comprises a first anti-skid layer, woven cloth and a second anti-skid layer from top to bottom. According to the plastic woven anti-seepage cloth provided by the invention, the elastomer and the micron anti-slip particles are added into the anti-slip layer and have a synergistic effect, so that the dry-state anti-slip performance and the wet-state anti-slip performance can be improved at the same time, and meanwhile, various properties of the plastic woven anti-seepage cloth are not influenced; therefore, the plastic woven anti-seepage cloth has excellent anti-slip performance and good softness, tensile property and tear resistance.

Description

Technical Field

[0001] This invention belongs to the field of plastic woven geotextile preparation technology, specifically relating to a plastic woven geotextile, its preparation method, and its application. Background Technology

[0002] Woven geomembrane (also known as geomembrane or geomembrane) is widely used in aquaculture, water conservancy projects, and environmental engineering due to its excellent impermeability, low cost, high strength, and corrosion resistance. However, most common woven geomembranes are smooth-surfaced, lacking sufficient anti-slip properties, such as high-density polyethylene (HDPE) smooth geomembranes. In actual installation and use, especially on the slopes of aquaculture ponds, this smooth surface has significant drawbacks: a low coefficient of friction and extreme smoothness. When water accumulates on the geomembrane surface, people are prone to slipping while walking or working, resulting in poor safety. Furthermore, the smooth surface makes it easy for the upper protective layer (such as clay, bricks, or concrete slabs) to slip, affecting the stability and durability of the pond structure.

[0003] In practical use, most plastic woven geotextiles are not flexible enough and do not adhere tightly to the substrate. Due to their high material rigidity, gaps and wrinkles are formed, affecting their performance. Furthermore, they take up a lot of space when rolled or stacked, significantly increasing transportation costs and storage space requirements.

[0004] Existing technologies often improve the anti-slip performance of plastic woven geotextiles by adding an anti-slip layer. However, this anti-slip layer typically has a rough, frictional surface, which reduces the flexibility of the woven geotextile and can also decrease its tensile and tear resistance. Furthermore, the anti-slip performance of existing plastic woven geotextiles with anti-slip layers is mostly limited to dry conditions, with little attention paid to wet conditions, and even the dry-state anti-slip performance needs improvement. Summary of the Invention

[0005] To address the technical problems of existing plastic woven geotextiles having insufficient anti-slip performance and being unable to simultaneously possess good anti-slip performance, softness, tensile strength, and tear resistance, this invention provides a plastic woven geotextile.

[0006] Another object of the present invention is to provide a method for preparing a plastic woven waterproof fabric.

[0007] Another object of the present invention is to provide an application of a plastic woven waterproof fabric.

[0008] The above-mentioned objective of the present invention is achieved through the following technical solution: A plastic woven waterproof fabric, comprising, from top to bottom, a first anti-slip layer, a woven fabric, and a second anti-slip layer; The first anti-slip layer includes a first outer layer and a first inner layer, wherein the first inner layer is disposed between the first outer layer and the woven fabric; The second anti-slip layer includes a second outer layer and a second inner layer, wherein the second inner layer is disposed between the second outer layer and the woven fabric; The first outer layer and the second outer layer comprise a first polyethylene, an elastomer, and micron-sized anti-slip particles, with the total mass of the first polyethylene and the elastomer being 100%, the first polyethylene accounting for 50-70%, the elastomer accounting for 30-50%, and the amount of micron-sized anti-slip particles added being 5%-10% of the total mass of the first polyethylene and the elastomer. The first inner layer and the second inner layer comprise a second polyethylene and a polar polymer, with the total mass of the second polyethylene and the polar polymer being 100%, the second polyethylene accounting for 70-85% and the polar polymer accounting for 15-30%. The second polyethylene comprises LDPE and LLDPE, wherein the mass of LDPE does not exceed 80% of the total mass of the second polyethylene. The plastic woven geotextile of the present invention has anti-slip layers on both sides of the woven fabric. Through the synergistic effect of the elastomer and the micron anti-slip particles, the dry friction coefficient and the wet friction coefficient can be effectively improved at the same time, so that the plastic woven geotextile has both dry and wet anti-slip properties.

[0009] This invention improves the anti-slip performance of woven plastic waterproof fabric through the synergistic use of elastomers and micron-sized anti-slip particles. The polyolefin elastomer provides a high coefficient of friction, and its molecular chain structure can deform under stress, increasing the actual contact area between the contact surfaces. The micron-sized anti-slip particles are uniformly dispersed on the elastomer surface. When these micron-sized particles come into contact with the anti-slip layer, they form countless tiny friction points, further increasing the frictional resistance between the contact surfaces. The synergistic effect of these two components results in an anti-slip layer that exhibits significantly higher anti-slip performance than either anti-slip agent used alone, and this synergistic effect also makes the anti-slip performance more stable and less prone to rapid degradation due to wear during use.

[0010] Specifically, the woven fabric is made of high-density polyethylene flat yarns.

[0011] More specifically, the high-density polyethylene flat yarn comprises high-density polyethylene and light stabilizer masterbatch accounting for 3-8% of the mass of the high-density polyethylene.

[0012] Specifically, the first polyethylene is selected from at least one of LDPE or LLDPE.

[0013] Specifically, the Shore hardness of the elastomer is 50-80. With the elastomer's Shore hardness within this range, the plastic woven geotextile can possess good anti-slip properties, softness, tensile strength, and tear resistance.

[0014] Specifically, the elastomer is selected from at least one of ethylene-octene copolymer, ethylene-butene copolymer, and ethylene propylene diene monomer (EPDM) rubber.

[0015] Specifically, the micron-sized anti-slip particles are selected from at least one of silica, rubber particles, calcium carbonate, and diatomaceous earth. When the micron-sized anti-slip particles are selected from silica, rubber particles, and calcium carbonate, the plastic woven geotextile can have good anti-slip performance, tensile strength, tear resistance, and softness; when the micron-sized anti-slip particles are selected from diatomaceous earth, the plastic woven geotextile has the best anti-slip performance.

[0016] Specifically, the average particle size of the micron-sized anti-slip particles is 50-200 micrometers. Within this average particle size range, the plastic woven waterproof fabric can possess good anti-slip properties, softness, tensile strength, and tear resistance.

[0017] Specifically, the polar polymer is selected from at least one of ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, and ethylene-ethyl acrylate copolymer.

[0018] Preferably, the mass of the LDPE does not exceed 80% of the total mass of the second polyethylene, more preferably not more than 70%, and even more preferably not more than 60%.

[0019] Preferably, the mass of the LDPE is not less than 20% of the total mass of the second polyethylene, more preferably not less than 29%, and even more preferably not less than 50%.

[0020] Preferably, the LDPE accounts for 20-80% of the total mass of the second polyethylene, more preferably 29-70%, even more preferably 29-60%, and even more preferably 50-60%. Within this range, LDPE can balance tensile strength, tear resistance, and flexibility.

[0021] Preferably, the first outer layer and / or the second outer layer further include light stabilizer masterbatch, wherein the light stabilizer masterbatch accounts for 5% to 15% of the total mass of the first polyethylene and elastomer.

[0022] Preferably, the first inner layer and / or the second inner layer further include a light stabilizer masterbatch, wherein the light stabilizer masterbatch accounts for 3% to 10% of the total mass of the second polyethylene and the polar polymer.

[0023] Specifically, the first inner layer and / or the second inner layer further include color masterbatch, which accounts for 3% to 8% of the total mass of the second polyethylene and polar polymer.

[0024] Specifically, the light stabilizer masterbatch comprises the following components: 70-90% LDPE, 5%-15% histamine light stabilizer, 2%-10% UV absorber, and 1%-3% antioxidant.

[0025] Specifically, the mass ratio of the first inner layer to the first outer layer is 1:5 to 2:3, and the mass ratio of the second inner layer to the second outer layer is 1:5 to 2:3.

[0026] The present invention also provides a method for preparing the above-mentioned plastic woven waterproof fabric, comprising the following steps: (1) Preparation of woven fabric; (2) The first anti-slip layer is composited on one side of the woven fabric by double-layer co-extrusion casting, and the second anti-slip layer is composited on the other side of the woven fabric by double-layer co-extrusion casting.

[0027] The present invention also provides the application of the above-mentioned plastic woven impermeable fabric in aquaculture membranes, dam seepage prevention and reinforcement membranes, and underground garage waterproof membranes.

[0028] Compared with the prior art, the beneficial effects of the present invention are: The plastic woven geotextile provided by this invention improves both dry and wet anti-slip performance by adding elastomers and micron-sized anti-slip particles to the anti-slip layer. This does not affect the various properties of the plastic woven geotextile, giving it excellent anti-slip performance as well as good softness, tensile strength, and tear resistance. Attached Figure Description

[0029] Figure 1 This is a structural diagram of a plastic woven waterproof fabric, where 1: first anti-slip layer, 2: woven fabric, and 3: second anti-slip layer.

[0030] Figure 2 The diagram shows the structure of the first and second anti-slip layers of the plastic woven waterproof fabric, where 1: first outer layer / second outer layer, 2: first inner layer / second inner layer. Detailed Implementation

[0031] The present invention will be further described below with reference to specific embodiments, but the embodiments do not limit the present invention in any way. Unless otherwise stated, the raw materials and reagents used in the embodiments of the present invention are conventionally purchased raw materials and reagents.

[0032] LDPE2420: Manufacturer: Sinopec, Grade: 2420 LDPE2426: Manufacturer: Sinopec, Grade: 2426 LDPE7042: Manufacturer: Daqing Petrochemical, Grade: 7042 LLDPE: Manufacturer: Sinopec, Grade: LM2320 HDPE6094: Manufacturer: PetroChina, Grade: 6094 HDPE7750: Manufacturer: Lanzhou Petrochemical, Grade: 7750M Ethylene-vinyl acetate copolymer: Manufacturer: LG Chem, South Korea; Grade: EA33018 Ethylene-acrylic acid copolymer: Manufacturer: ExxonMobil, USA; Grade: 5000 Ethylene-ethyl acrylate copolymer: Manufacturer: DowDuPont, USA; Grade: 20D828 POE565: Manufacturer: LG Chem, South Korea; Grade: LC565; Shore Hardness: 54 POE6202: Manufacturer: ExxonMobil, USA; Grade: 6202; Shore hardness: 66. EPDM: Manufacturer: Mitsui Chemicals, Japan; Grade: 3072; Shore Hardness: 72 Silica: Average particle size 100 micrometers Rubber granules: average particle size 100 micrometers Calcium carbonate: average particle size 100 micrometers Diatomaceous earth: average particle size 100 micrometers The plastic woven waterproof fabric of the present invention is prepared through the following process: 1) Preparation of light stabilizer masterbatch: The light stabilizer masterbatch raw material was fed into a twin-screw granulator for extrusion granulation, and the temperature distribution was as follows:

[0033] 2) Wire drawing process: The raw material for fiber drawing is fed into an extruder for mixing, and the temperature distribution is as follows:

[0034] A flat film is extruded from an extruder under the above process conditions. The flat film is cooled with water at 20~40℃ and then cut into flat filaments. The filaments are then hot-stretched on a stretching plate at 80~128℃ with a stretching ratio of 7~9 times and then shaped at 100~120℃ to obtain flat filaments with a width of 2.0~3.5mm. The linear density of the plastic flat filaments is 110~280tex ±5, the tensile strength is ≥0.44N / tex, and the elongation is 15~30%.

[0035] 3) Weaving process: Using a circular loom, water loom, or flat loom, polyethylene flat yarns are woven into a base fabric with consistent mechanical properties in all directions. The warp density is controlled at 36-68 threads / 10 cm, and the weft density at 34-64 threads / 10 cm. The base fabric exhibits minimal deformation, with a cut width of 3-6.8 meters and a weight of 110-300 g / m². 2 .

[0036] 4) Composite process: The rolled woven base fabric is loaded onto a double-layer co-extrusion casting coating machine for double-sided casting coating, with a double-layer co-extruded film cast and laminated on one side of the base fabric each time.

[0037] The inner layer membrane raw material was fed into an extruder for mixing, and the temperature distribution was as follows:

[0038] The outer film raw material is fed into an extruder for mixing, and the temperature distribution is as follows:

[0039] The ratio of inner to outer membrane is 1:5 to 2:3, and the weight of a single-sided coating layer is 35~110 g / m². 2 The product is a double-sided coated composite product, with a total weight of 180~500g / m². 2 .

[0040] Example 1 1. Light stabilizer masterbatch raw materials LDPE (2420): Hindered amine light stabilizer 944: UV absorber 360: Antioxidant 1010 = 80:10:8:2 2. Raw materials for wire drawing High-density polyethylene (HDPE) 6094: Light stabilizer masterbatch = 100:2 Warp width: 2.0 mm, linear density: 120 tex, relative tensile strength: 0.44 N / tex Weft yarn width: 2.6mm, linear density: 152tex, relative tensile strength: 0.47N / tex, other physical properties as per standard requirements. 3. Weaving 42×38 strips / 10cm, fabric weight 110g / m² 2 4. Lamination Inner membrane raw materials LDPE (2420): LLDPE (LM2320): Ethylene-vinyl acetate copolymer: Light stabilizer masterbatch: Black masterbatch = 45:40:15:3:3 Outer membrane raw materials LDPE (2420): POE6202: Light stabilizer masterbatch: Silica masterbatch = 70:30:5:5 Inner membrane mass : outer membrane mass = 1 : 2 Membrane weight: 35g / m 2 Product weight: 180g / m 2 Example 2 1. Light stabilizer masterbatch raw materials LDPE (2426): Hindered amine light stabilizer 5050: UV absorber 328: Antioxidant 1010 = 80:12:6:2 2. Raw materials for wire drawing High-density polyethylene (HDPE) 6094: Light stabilizer masterbatch = 100:4 Warp and weft yarn width: 2.5mm, linear density: 172tex, relative tensile strength: 0.48N / tex, other physical properties as per standard requirements. 3. Weaving 44×46 strips / 10cm, fabric weight 157g / m² 2 4. Lamination Inner membrane raw materials LDPE (2420): LLDPE (LM2320): Ethylene-acrylic acid copolymer: Light stabilizer masterbatch: Black masterbatch = 50:35:15:5:3 Outer membrane raw materials LDPE (2426): POE565: Light stabilizer masterbatch: Silica masterbatch = 70:30:8:5 Inner membrane mass : outer membrane mass = 2 : 3 Membrane weight: 54 g / m 2 Product weight: 265g / m 2 Example 3 1. Light stabilizer masterbatch raw materials LDPE (2420): Hindered amine light stabilizer 3529: UV absorber 531: Antioxidant 1010 = 80:10:9:1 2. Raw materials for wire drawing High-density polyethylene (HDPE) 6094: Light stabilizer masterbatch = 100:6 Warp width: 2.8mm, linear density: 136tex, relative tensile strength: 0.46N / tex Weft yarn width: 2.4mm, linear density: 185tex, relative tensile strength: 0.48N / tex, other physical properties as per standard requirements. 3. Weaving 42×44 strands / 10cm, double warp yarns, fabric weight 199g / m² 2 4. Lamination Inner membrane raw materials LDPE (2420): LLDPE (LM2320): Ethylene-ethyl acrylate copolymer: Light stabilizer masterbatch: Black masterbatch = 40:30:30:8:5 Outer membrane raw materials LLDPE (LM2320): POE565: Light stabilizer masterbatch: Silica masterbatch = 50:50:10:10 Inner membrane mass : outer membrane mass = 1:3 Membrane weight: 80g / m 2 Product weight: 360g / m 2 Example 4 1. Light stabilizer masterbatch raw materials LDPE (7042): Hindered amine light stabilizer 944: UV absorber 531: Antioxidant 1076 = 85:12:2:1 2. Raw materials for wire drawing High-density polyethylene (HDPE) 7750: Light stabilizer masterbatch = 100:4 Fold width: 2.3mm, linear density: 245tex, relative tensile strength: 0.49N / tex, other physical properties as per standard requirements. 3. Weaving 46×48 strips / 10cm, fabric weight 235g / m 2 4. Lamination Inner membrane raw materials LDPE (2420): LLDPE (LM2320): Ethylene-acrylic acid copolymer: Light stabilizer masterbatch: Black masterbatch = 40:30:30:6:4 Outer membrane raw materials LLDPE (LM2320): EPDM: Light stabilizer masterbatch: Silica masterbatch = 50:50:10:10 Inner layer mass : outer layer mass = 1:4 Membrane weight: 92 g / m 2 Product weight: 420g / m 2 Example 5 1. Light stabilizer masterbatch raw materials LDPE (2420): Hindered amine light stabilizer 783: UV absorber 360: Antioxidant 1076 = 85:10:3:2 2. Raw materials for wire drawing High-density polyethylene (HDPE) 7750: Light stabilizer masterbatch = 100:6 Warp width: 2.4mm, linear density: 185tex, relative tensile strength: 0.48N / tex Weft yarn width: 2.2mm, linear density: 276tex, relative tensile strength: 0.5N / tex, other physical properties as per standard requirements. 3. Weaving 50×54 strands / 10cm, warp yarns arranged in a 1 single warp and 1 double warp pattern, fabric weight 293g / m². 2 4. Lamination Inner membrane raw materials LDPE (2420): LLDPE (LM2320): Ethylene-vinyl acetate copolymer: Light stabilizer masterbatch: Black masterbatch = 40:30:30:8:6 Outer membrane raw materials LDPE (2420): LLDPE (LM2320): POE6202: Light stabilizer masterbatch: Silica masterbatch = 30:20:50:12:10 Inner membrane mass : outer membrane mass = 1:5 Membrane weight: 104 g / m 2 Product weight: 500g / m 2 Examples 6-8 Compared with Example 1, the only difference is that the anti-slip particles in Examples 6 to 8 are rubber particles, calcium carbonate, and diatomaceous earth, respectively.

[0041] Example 9 Compared with Example 1, the only difference is that the inner layer membrane raw material is LDPE:LLDPE:ethylene-vinyl acetate copolymer:light stabilizer masterbatch:black masterbatch = 25:60:15:3:3.

[0042] Comparative Example 1 1. Light stabilizer masterbatch formulation LDPE(7042):944:531:1076=90:5:3:2 2. Fiber drawing raw material formula High-density polyethylene (HDPE) 6094: Light stabilizer masterbatch = 100:2 Warp and weft yarn width: 2.6mm, linear density: 136tex, relative tensile strength: 0.44N / tex, other physical properties as per standard requirements. 3. Weaving 48×50 strips / 10cm, fabric weight 136g / m² 2 4. Lamination 50g of LDPE is applied to each side; LDPE membrane weight: 50g / m² 2 Product weight: 236g / m 2 Comparative Example 2 Compared with Example 1, the only difference is that the outer film raw material is LDPE: light stabilizer masterbatch: silica masterbatch = 100:5:5.

[0043] Comparative Example 3 Compared with Example 1, the only difference is that the outer film material is LDPE:POE6202:light stabilizer masterbatch = 50:50:5.

[0044] Comparative Example 4 Compared with Example 1, the only difference is that the outer film raw material is LDPE:POE6202:light stabilizer masterbatch:silica masterbatch = 40:60:5:5.

[0045] Comparative Example 5 Compared with Example 1, the only difference is that the outer film raw material is LDPE:POE6202:light stabilizer masterbatch:silica masterbatch = 70:30:5:30.

[0046] Comparative Example 6 Compared with Example 1, the only difference is that the inner layer membrane material is LDPE:LLDPE:ethylene-vinyl acetate copolymer:light stabilizer masterbatch:black masterbatch = 70:15:15:3:3.

[0047] Comparative Example 7 Compared with Example 1, the only difference is that the inner layer membrane material is LDPE:LLDPE:ethylene-vinyl acetate copolymer:light stabilizer masterbatch:black masterbatch = 48:44:8:3:3.

[0048] Comparative Example 8 Compared with Example 1, the only difference is that the inner layer membrane raw material is LDPE:LLDPE:ethylene-vinyl acetate copolymer:light stabilizer masterbatch:black masterbatch = 29:26:45:3:3.

[0049] Result detection Coefficient of friction: The dry static friction coefficient is determined according to standard GB / T 10006-2021, and the wet static friction coefficient is determined according to standard ASTM D1894-20, "Standard Test Method for Determination of Coefficient of Friction of Plastic Films and Sheets". The specific procedures are as follows: For the wet static friction coefficient test, under conditions of 50%±2% relative humidity and 23℃±2℃, the sample is placed in distilled water for 15 minutes. Then, a slider with a mass of 200g±0.5g is used to drag the sample at a speed of 0.15m / s±0.01m / s. The maximum force at the start of the slider is recorded, and the wet static friction coefficient is calculated using the formula. For the dry test, the sample is placed in an environment of 23±2℃ and 50±5% relative humidity for 4 hours. Then, a slider with a mass of 200g±0.5g is used to pull the sample horizontally at the same speed. The initial peak force and the average force during the continuous sliding phase are recorded, and the dry static friction coefficient is calculated using the formula.

[0050] 1000h aging retention rate: The tensile retention rate after 1000 hours was tested according to exposure method 6 in GB / T 16422.3; The warp and weft tensile strength shall be measured according to the test method of GB / T 1040, the warp and weft tear strength shall be measured according to the test method of GB / T 13763, and the softness shall be measured according to the test method of GB / T 8942. Anti-slip performance test: (1) Test procedure: Take a 150cm×100cm plastic woven waterproof cloth from Example 5 and fix it on a 100cm×100cm wooden board. Lay the excess part flat on the ground. Spray the surface of the plastic woven waterproof cloth with clean water. Tilt the wooden board to take different test angles and observe the slipping situation of the test personnel (wearing commonly used rubber shoes for breeding) walking on the anti-slip composite plastic woven waterproof cloth. (2) Test angles: 0°, 30°, 35°, 40°, 45°, 50°, 60°; (3) Test stroke: 150cm.

[0051] The test results are as follows: Table 1

[0052] Table 2

[0053] Table 3

[0054] As can be seen from Tables 1-2, the wet friction coefficient of the plastic woven geotextile in each embodiment is greater than 0.5, the dry friction coefficient is greater than 0.62, the tensile strength retention rate after 1000h aging is greater than 95%, the radial tensile strength is greater than 1000N / 5cm, the weft tensile strength is greater than 1100N / 5cm, the warp tear strength is greater than 155N, the weft tear strength is greater than 165N, and the softness is 2400~3100mN. It can be seen that the plastic woven geotextile of the present invention has good anti-slip performance, light aging resistance, tensile strength, tear resistance and appropriate softness.

[0055] Comparative Example 1 only coated 50g LDPE on each side of the base fabric, resulting in a low coefficient of friction, insufficient anti-slip performance, and poor softness; The outer layer of Comparative Example 2 does not contain an elastomer, resulting in a lower coefficient of friction, insufficient anti-slip performance, and significantly reduced tensile and tear resistance. Comparative Example 3 does not contain silica in its outer layer, resulting in a lower coefficient of friction and insufficient anti-slip performance. The excessive addition of elastomer in Comparative Example 4 resulted in poor tensile and tear resistance. The addition of excessive silica in Comparative Example 5 resulted in poor tensile strength, tear resistance, and softness. The excessive LDPE in Comparative Example 6 resulted in poor tensile and tear resistance. The polar polymer in Comparative Example 7 was added too little, resulting in poor tensile strength and softness. The addition of too much polar polymer in Comparative Example 8 resulted in poor tensile and tear resistance.

[0056] Table 3 shows that test personnel can walk steadily without slipping on the plastic woven geotextile laid flat on the ground. When the inclination angle of the wooden board is less than 50°, test personnel can walk and stand still on the board without slipping; when the inclination angle of the wooden board is greater than 60°, test personnel will slip slightly on the board. Overall, the plastic woven geotextile has a significant anti-slip effect under wet conditions.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A plastic woven waterproof fabric, comprising, from top to bottom, a first anti-slip layer, a woven fabric, and a second anti-slip layer; The first anti-slip layer includes a first outer layer and a first inner layer, wherein the first inner layer is disposed between the first outer layer and the woven fabric; The second anti-slip layer includes a second outer layer and a second inner layer, wherein the second inner layer is disposed between the second outer layer and the woven fabric; The first outer layer and the second outer layer comprise a first polyethylene, an elastomer, and micron-sized anti-slip particles, with the total mass of the first polyethylene and the elastomer being 100%, the first polyethylene accounting for 50-70%, the elastomer accounting for 30-50%, and the amount of micron-sized anti-slip particles added being 5%-10% of the total mass of the first polyethylene and the elastomer. The first inner layer and the second inner layer comprise a second polyethylene and a polar polymer, with the total mass of the second polyethylene and the polar polymer being 100%, the second polyethylene accounting for 70-85% and the polar polymer accounting for 15-30%.

2. The plastic woven waterproof fabric according to claim 1, characterized in that, The woven fabric is made of high-density polyethylene flat yarn.

3. The plastic woven waterproof fabric according to claim 1, characterized in that, The first polyethylene is selected from at least one of LDPE or LLDPE.

4. The plastic woven waterproof fabric according to claim 1, characterized in that, The elastomer is selected from at least one of ethylene-octene copolymer, ethylene-butene copolymer, and ethylene propylene diene monomer (EPDM) rubber; preferably, the Shore hardness of the elastomer is 50-80.

5. The plastic woven waterproof fabric according to claim 1, characterized in that, The micron-sized anti-slip particles are selected from at least one of silica, rubber particles, calcium carbonate, and diatomaceous earth; preferably, the average particle size of the micron-sized anti-slip particles is 50-200 microns.

6. The plastic woven waterproof fabric according to claim 1, characterized in that, The polar polymer is selected from at least one of ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, and ethylene-ethyl acrylate copolymer.

7. The plastic woven waterproof fabric according to claim 1, characterized in that, The second polyethylene comprises LDPE and LLDPE, wherein the mass of LDPE does not exceed 80% of the total mass of the second polyethylene; preferably, the mass of LDPE does not exceed 70% of the total mass of the second polyethylene, more preferably not more than 60%; and / or, the mass of LDPE is not less than 20% of the total mass of the second polyethylene, more preferably not less than 29%, more preferably not less than 50%; and / or, the mass of LDPE accounts for 20-80% of the total mass of the second polyethylene, more preferably 29-70%, more preferably 29-60%, more preferably 50-60%.

8. The plastic woven waterproof fabric according to claim 1, characterized in that, The ratio of the first inner layer to the first outer layer and the second inner layer to the second outer layer is 1:5 to 2:

3.

9. A method for preparing the plastic woven geotextile according to any one of claims 1 to 8, comprising the following steps: (1) Preparation of woven fabric; (2) The first anti-slip layer is composited on one side of the woven fabric by double-layer co-extrusion casting, and the second anti-slip layer is composited on the other side of the woven fabric by double-layer co-extrusion casting.

10. The application of the plastic woven geotextile according to any one of claims 1 to 8 in aquaculture membranes, dam seepage prevention and reinforcement membranes, and underground garage waterproof membranes.

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