High-strength-resistance and breakage-proof rubber dam material and preparation method thereof

Abstract

The invention provides a high-strength damage-resistant rubber dam material and a preparation method thereof, and relates to the technical field of rubber dam materials. The high-strength-resistance and breakage-proof rubber dam material comprises, by mass, 185 to 195 parts of a rubber protection layer, 35 to 45 parts of a stainless steel mesh skeleton layer, 20 to 30 parts of a metal reinforcement layer and 115 to 125 parts of a pressure-bearing layer from outside to inside. The rubber protection layer comprises 180-185 parts of chloroprene rubber and 5-10 parts of an anti-biting agent, the stainless steel framework is a stainless steel net woven in a diamond shape, the metal enhancement layer comprises coppered steel wires which are obliquely arranged in a crossed mode by 43-47 degrees, and the pressure bearing layer comprises 100-105 parts of natural rubber and 15-20 parts of spiral nylon ropes. The anti-biting agent is prepared from the following components in parts by mass: 0.5 to 1 part of capsaicin, 0.4 to 0.5 part of menthol and 0.25 to 0.3 part of cinnamyl aldehyde. The rubber dam disclosed by the invention has relatively high impact resistance and damage resistance and relatively long service life.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber dam materials, and in particular to a high-strength and anti-destruction rubber dam material, a preparation method and application thereof. Background Art

[0002] Compared with traditional concrete dams, rubber dams have many advantages such as saving three materials, low cost, short construction period, flexible use, good earthquake resistance, and easy management. They can be used in water conservancy projects such as flood control, irrigation, power generation, water supply, shipping, tide blocking, landscaping, movable cofferdams, etc.

[0003] The Chinese invention patent application with publication number CN102747710A discloses a production process for manufacturing a rubber dam bag using polyester fabric as a skeleton material. The production process for manufacturing a rubber dam bag using polyester fabric as a skeleton material includes the following steps: A. pretreatment of the polyester fabric, B. tackification treatment of the polyester fabric, C. preparation of an adhesive layer rubber material (2), D. preparation of an outer covering layer rubber material (1), E. preparation of an inner rubber layer rubber material (4), calendering, lamination and vulcanization, molding and hot pressing.

[0004] Compared to existing technologies, the rubber dam bags provided by this invention offer high strength, low elongation, good shape retention, light weight, aging resistance, excellent water resistance, and convenient transportation, installation, and maintenance of the dam body. This opens the way to producing high-performance rubber dam bags and increasing the height of rubber dam bodies. However, the aforementioned rubber dams are susceptible to impact from floating objects and damage from biological gnawing, which can easily cause delamination at the rubber dam's interface, shortening the dam's service life. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a highly resistant and anti-destructive rubber dam material and a preparation method thereof. The rubber dam material of the present invention is applied to rubber dams and has high impact resistance, anti-destruction properties and a long service life.

[0006] In a first aspect, the present invention provides a high-strength, anti-destruction rubber dam material, which comprises, by total mass, 185-195 parts of a rubber protective layer, 35-45 parts of a stainless steel mesh skeleton layer, 20-30 parts of a metal reinforcement layer, and 115-125 parts of a pressure-bearing layer from the outside to the inside; the rubber protective layer comprises 180-185 parts of chloroprene rubber and 5-10 parts of an anti-chewing agent, the stainless steel skeleton is a diamond-woven stainless steel mesh, the metal reinforcement layer comprises copper-plated steel wires arranged obliquely cross-arranged at 43°-47°, and the pressure-bearing layer comprises 100-105 parts of natural rubber and 15-20 parts of spiral nylon rope; by mass of the rubber protective layer, the anti-chewing agent comprises 0.5-1 parts of capsaicin, 0.4-0.5 parts of menthol, and 0.25-0.3 parts of cinnamaldehyde.

[0007] In this technical solution, the rubber protective layer is impact-resistant, protecting against direct impact from drifting objects (such as branches and rocks). It is also weather-resistant, resisting UV rays, oxidation, and water erosion. Neoprene's inherent rigidity disperses impact forces, minimizing localized dents and penetrations. The addition of an anti-gnawing agent protects the dam from gnawing, preventing damage to the dam by aquatic organisms such as fish and shellfish.

[0008] The tear-resistant stainless steel mesh skeleton prevents the outer rubber layer from cracking due to impact, providing a rigid framework for the overall structure and maintaining the dam's shape. The diamond-woven stainless steel mesh, a highly ductile metal mesh, absorbs energy through elastic deformation during impact, preventing brittle fracture. The mesh openings are designed to be 10-15mm, allowing for partial embedding of the outer rubber layer. The vulcanization process creates a mechanical interlock, enhancing the bond. The wire diameter is 0.5-1mm, achieving a balance between strength and flexibility, avoiding excessive weight or rigidity that could compromise the dam's foldability.

[0009] The metal reinforcement layer resists radial water pressure and withstands the expansion stress of the dam after water filling. It inhibits interlayer delamination and reduces relative displacement caused by repeated deformation. The copper-plated steel wires are arranged at a 45-degree angle, converting water pressure into tensile force in the cord, distributing the load by leveraging the metal's high tensile strength. This oblique structure inhibits shear slip between layers, and the copper and sulfur in the copper-plated steel wires form chemical bonds during the vulcanization process, improving adhesion to the rubber.

[0010] The pressure-bearing layer directly withstands water pressure, maintaining the overall elasticity of the dam, reducing internal stress concentration and delaying fatigue aging. Natural rubber absorbs water pressure energy, maintaining flexibility and sealing. Nylon's high toughness limits excessive rubber expansion and prevents localized bulging. The spiral arrangement allows for uniform radial deformation, avoiding stress concentration and preventing interlaminar shear displacement.

[0011] Optionally, based on the mass of the rubber protective layer, the anti-chewing agent includes 2.5-3 parts of 3,3'-dithiodipropionic acid, 1.5-2 parts of N-hydroxysuccinimide, 2-2.5 parts of 1-ethyl-(3-dimethylaminopropyl)carbodiimide, 2-2.5 parts of cystamine, 0.5-1 part of capsaicin, 0.4-0.5 part of menthol, 0.25-0.3 part of cinnamaldehyde, and 0.1-0.3 part of 3-aminopropyltriethoxysilane.

[0012] In the above technical solution, capsaicin activates pain receptors in fish and mammals, triggering a burning sensation and forcing them to flee. Menthol stimulates the olfactory nerves, producing a cooling and unpleasant sensation that increases the repellent range (spreading to surrounding waters). Cinnamaldehyde disrupts microbial cell membranes, inhibiting the attachment of algae and shellfish. The active ingredient is encapsulated in disulfide-crosslinked microspheres. Gnawing on the microspheres causes the surface to rupture, exposing the active ingredient. The exposed disulfide bonds are then reduced and cleaved by oral glutathione. The microspheres are then treated with 3-aminopropyltriethoxysilane, where the amino groups (-NH2) on the microsphere surface form amide bonds with the carboxyl groups (-COOH) in the rubber, enhancing peel strength. The weak acidity of fish saliva promotes the protonation of the 3-aminopropyltriethoxysilane on the microsphere surface, increasing hydrophilicity and accelerating dissolution, thereby synergistically enhancing release.

[0013] Optionally, the chloroprene rubber is a modified chloroprene rubber, and the preparation steps of the modified chloroprene rubber are as follows: according to the mass fraction of the rubber protective layer, 95-105 parts of chloroprene rubber are thin-passed at 40-50°C for 3-5 times, the thin-passed chloroprene rubber, 4-6 parts of ZnO, and 3-5 parts of MgO are mixed at a speed of 55-65rpm and 100-110°C for 1-3 minutes, and then 40-50 parts of carbon black, 15-25 parts of white carbon black and 1-3 parts of silane coupling are added. Add 1-3 parts of accelerator DM and mix for 3-5 minutes, add 10-15 parts of phenolic resin and 1-3 parts of antioxidant RD and mix for 2-5 minutes, finally add 0.5-1.5 parts of stearic acid and mix for 1-3 minutes to form a banburying rubber compound, thinly pass the banburying rubber compound at a temperature of 50-60°C for 3-4 times, add 2-3 parts of sulfur and 1-2 parts of accelerator DM, and vulcanize at a temperature of 160-170°C and a pressure of 12-15MPa for 25-35 minutes to obtain modified chloroprene rubber.

[0014] In this technical solution, carbon black and silica form a rigid network that restricts molecular chain motion. Upon impact, the rigid network absorbs energy through temporary destruction, while the remaining energy is dissipated through elastic deformation of the rubber. Sulfur and the accelerator DM form polysulfide crosslinks, increasing the density of the three-dimensional network, increasing the number of crosslinks, and improving the elastic modulus. Phenolic resin and chloroprene rubber are co-crosslinked to introduce a rigid phase, enhancing hardness. Silica forms a chemical bond with chloroprene rubber via the silane coupling agent Si69, reducing energy loss caused by interfacial slip. This enables the rubber protective layer to withstand direct impact with floating objects such as branches and rocks in the water, preventing surface damage. This reduces material loss caused by friction from sand, gravel, and ice, extending its service life. The high-hardness surface makes it difficult for fish and shellfish to penetrate, and combined with anti-bite additives, it provides dual protection. It also resists aging factors such as ultraviolet rays, ozone, and hydrolysis, maintaining long-term performance stability.

[0015] Optionally, the natural rubber is modified natural rubber, and the preparation steps of the modified natural rubber are as follows: according to the mass fraction of the pressure-bearing layer, 95-105 parts of natural rubber are thin-passed at 45-50°C for 3-5 times, the thin-passed natural rubber, 4-6 parts of ZnO, and 1-3 parts of stearic acid are mixed at a speed of 55-65rpm and 90-100°C for 1-3min, then 15-20 parts of white carbon black and 1-3 parts of silane coupling agent Si69 are added and mixed for 3-5min, the temperature is lowered to 65-75°C, 1.5-2 parts of sulfur, 1-1.5 parts of accelerator CBS, 1-3 parts of antioxidant 6PPD, and 4-6 parts of liquid polyisoprene are added and mixed for 1-3min, the binder is discharged at 90-100°C, the sheet is removed, the sheet is cooled to room temperature, and the modified natural rubber is vulcanized at a temperature of 145-155°C and a pressure of 10-12MPa for 15-20min to obtain the modified natural rubber.

[0016] In this technical solution, sulfur and the accelerator CZ form flexible polysulfide bonds, while the silane coupling agent Si69 modifies silica to form a flexible interface layer, reducing filler frictional energy loss. Liquid polyisoprene acts as a plasticizer, lubricating the molecular chains and enhancing segment mobility. This allows the pressure-bearing layer to directly withstand water pressure (0.5-1.5 MPa), dispersing stress through large deformation and preventing localized cracking. It absorbs the kinetic energy of the water impact and reduces vibration transmitted to the dam foundation. Rapid rebound during the charge and discharge cycles reduces permanent deformation. Its high elasticity ensures a tight fit with the metal reinforcement layer, blocking leakage paths.

[0017] In a second aspect, the present invention provides a method for preparing a highly resistant and anti-destruction rubber dam material, the method comprising the following steps: Preparation of rubber protective layer: After plasticizing the chloroprene rubber, mix it with the anti-bite agent at 115-125℃ for 5-8min, cool it to 75-80℃ and pass it through thinly 3-4 times; Preparation of stainless steel mesh skeleton layer: soak the diamond-woven stainless steel mesh in 8-10% HNO3 and 1-3% HF solution for 5-8 minutes, apply epoxy resin adhesive and pre-cure in a 75-80°C oven for 15-20 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 15-25% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 43°-47° angle and let it stand for 5-8 minutes; Preparation of the pressure-bearing layer: natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking from the outside to the inside, vulcanize at a temperature of 150-180℃ and a pressure of 10-20MPa for 1-2 hours, and then perform secondary vulcanization at 95-100℃ for 3-5 hours to obtain a high-strength and anti-destruction rubber dam material.

[0018] Optionally, the preparation steps of the anti-bite agent are as follows, calculated by mass fraction of the rubber protective layer: dissolving 3,3'-dithiodipropionic acid and N-hydroxysuccinimide in N,N-dimethylformamide solution, adding 1-ethyl-(3-dimethylaminopropyl)carbodiimide to activate the carboxyl group at 0°C for 25-35 minutes, adding cystamine dropwise, and reacting at 20-30°C for 10-14 hours to generate disulfide-crosslinked polyamide microspheres, dissolving capsaicin, menthol, and cinnamaldehyde in ethanol, adding the reactants to the polyamide microspheres, and vacuuming at 35-45°C and -0.1 MPa for 1-3 hours. Finally, treating the surface of the microspheres with 3-aminopropyltriethoxysilane to obtain the anti-bite agent.

[0019] In a third aspect, the present invention provides a rubber dam using the above-mentioned high-strength anti-destruction rubber dam material or a method for preparing a high-strength anti-destruction rubber dam material.

[0020] In a fourth aspect, the present invention provides a rubber dam for use in river management industry, agricultural irrigation industry, flood control and tide prevention industry, shipping and transportation industry, and in rubber dam construction in high water pressure environment.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The rubber protective layer of this application is impact-resistant, protecting against direct impact from drifting objects (such as branches and rocks). It is also weather-resistant, resisting UV rays, oxidation, and water erosion. The addition of an anti-gnawing agent prevents gnawing by organisms, preventing damage to the dam by aquatic organisms such as fish and shellfish.

[0022] 2. The stainless steel mesh skeleton layer of this application is tear-resistant, preventing the outer rubber layer from cracking after impact, providing a rigid framework for the entire structure and maintaining the dam's shape. The diamond-woven stainless steel mesh is highly ductile, absorbing energy through elastic deformation during impact, preventing brittle fracture.

[0023] 3. The metal reinforcement layer of this application can withstand radial water pressure and the expansion stress caused by water filling in the dam. It can inhibit interlayer delamination and reduce the relative displacement of each layer caused by repeated deformation. The copper-plated steel wires are arranged at a 45-degree angle to convert water pressure into tensile force in the cord, distributing the load by leveraging the high tensile strength of the metal. The oblique structure inhibits shear slip between layers. The copper in the copper-plated steel wires forms a chemical bond with the sulfur during the vulcanization process, improving adhesion to the rubber.

[0024] 4. The pressure-bearing layer of this application can directly withstand water pressure, maintain the overall elasticity of the dam body, reduce internal stress concentration, and delay fatigue aging. The high toughness of nylon limits excessive expansion of rubber and prevents localized bulging. The spiral arrangement allows for uniform radial deformation, avoids stress concentration, and prevents interlaminar shear displacement. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the examples.

[0026] The materials used in the following examples can all be purchased from the market.

[0027] Example 1: This example discloses a high-strength, anti-destruction rubber dam material #1 and its preparation method.

[0028] Calculated by total weight, the high-strength, anti-destruction rubber dam material comprises, from the outside to the inside, 185 parts of a rubber protective layer, 35 parts of a stainless steel mesh skeleton layer, 20 parts of a metal reinforcement layer, and 115 parts of a pressure-bearing layer; the rubber protective layer comprises 180 parts of chloroprene rubber and 5 parts of an anti-chewing agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer comprises copper-plated steel wires arranged in a 45° oblique cross pattern; the pressure-bearing layer comprises 100 parts of natural rubber and 15 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-chewing agent comprises 0.5 parts of capsaicin, 0.4 parts of menthol, and 0.25 parts of cinnamaldehyde.

[0029] The preparation method comprises the following steps: Preparation of rubber protective layer: After the chloroprene rubber is masticated, it is mixed with the anti-bite agent at 120℃ for 5 minutes, cooled to 80℃ and thinned three times; Preparation of stainless steel mesh skeleton layer: Soak the diamond-woven stainless steel mesh in 10% HNO3 and 3% HF solution for 5 minutes, apply epoxy resin adhesive and pre-cure in an 80°C oven for 15 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 20% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 45° angle and let it stand for 5 minutes; Preparation of the pressure-bearing layer: natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking the layers from the outside to the inside, vulcanize at a temperature of 170°C and a pressure of 15 MPa for 1 hour, and then perform a secondary vulcanization at 100°C for 4 hours to obtain a high-strength, anti-destruction rubber dam material #1.

[0030] Example 2: This example discloses a high-strength, anti-destruction rubber dam material #2 and its preparation method.

[0031] Calculated by total weight, the high-strength, anti-destruction rubber dam material includes, from the outside to the inside, 195 parts of a rubber protective layer, 45 parts of a stainless steel mesh skeleton layer, 30 parts of a metal reinforcement layer, and 125 parts of a pressure-bearing layer; the rubber protective layer includes 185 parts of chloroprene rubber and 10 parts of an anti-bite agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer includes copper-plated steel wires arranged in a 45° oblique cross pattern; the pressure-bearing layer includes 105 parts of natural rubber and 20 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-bite agent includes 1 part of capsaicin, 0.5 parts of menthol, and 0.3 parts of cinnamaldehyde.

[0032] The preparation method of the high-strength and anti-destruction rubber dam material is the same as that in Example 1.

[0033] Example 3: This example discloses a high-strength, anti-destruction rubber dam material #3 and its preparation method.

[0034] Calculated by total weight, the high-strength, anti-destruction rubber dam material comprises, from the outside to the inside, 190 parts of a rubber protective layer, 40 parts of a stainless steel mesh skeleton layer, 25 parts of a metal reinforcement layer, and 120 parts of a pressure-bearing layer; the rubber protective layer comprises 182 parts of chloroprene rubber and 7 parts of an anti-bite agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer comprises copper-plated steel wires arranged in a 45° oblique cross pattern; the pressure-bearing layer comprises 100 parts of natural rubber and 17 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-bite agent comprises 0.8 parts of capsaicin, 0.45 parts of menthol, and 0.27 parts of cinnamaldehyde.

[0035] The preparation method of the high-strength and anti-destruction rubber dam material is the same as that in Example 1.

[0036] Example 4: This example discloses a high-strength, anti-destruction rubber dam material #4 and its preparation method.

[0037] Calculated by total weight, the high-strength, anti-destruction rubber dam material comprises, from the outside to the inside, 190 parts of a rubber protective layer, 40 parts of a stainless steel mesh skeleton layer, 25 parts of a metal reinforcement layer, and 120 parts of a pressure-bearing layer; the rubber protective layer comprises 182 parts of chloroprene rubber and 7 parts of an anti-chewing agent, the stainless steel skeleton is a diamond-woven stainless steel mesh, the metal reinforcement layer comprises copper-plated steel wires arranged in a 45° oblique cross pattern, and the pressure-bearing layer comprises 100 parts of natural rubber and 17 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-chewing agent comprises 2.7 parts of 3,3'-dithiodipropionic acid, 1.8 parts of N-hydroxysuccinimide, 2.2 parts of 1-ethyl-(3-dimethylaminopropyl)carbodiimide, 2.3 parts of cystamine, 0.7 parts of capsaicin, 0.45 parts of menthol, 0.27 parts of cinnamaldehyde, and 0.2 parts of 3-aminopropyltriethoxysilane.

[0038] The preparation method comprises the following steps: Preparation of the anti-chewing agent: 3,3'-dithiodipropionic acid and N-hydroxysuccinimide were dissolved in N,N-dimethylformamide solution, 1-ethyl-(3-dimethylaminopropyl)carbodiimide was added to activate the carboxyl groups at 0°C for 30 minutes, cystamine was added dropwise, and the reaction was carried out at 25°C for 12 hours to form disulfide-crosslinked polyamide microspheres. Capsaicin, menthol, and cinnamaldehyde were dissolved in ethanol and added to the polyamide microspheres. The solution was vacuumed at 40°C and -0.1 MPa for 2 hours, and the surface of the microspheres was treated with 3-aminopropyltriethoxysilane to obtain the anti-chewing agent. Preparation of rubber protective layer: After the chloroprene rubber is masticated, it is mixed with the anti-bite agent at 120℃ for 5 minutes, cooled to 80℃ and thinned three times; Preparation of stainless steel mesh skeleton layer: Soak the diamond-woven stainless steel mesh in 10% HNO3 and 3% HF solution for 5 minutes, apply epoxy resin adhesive and pre-cure in an 80°C oven for 15 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 20% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 45° angle and let it stand for 5 minutes; Preparation of the pressure-bearing layer: natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking the layers from the outside to the inside, vulcanize at a temperature of 170°C and a pressure of 15 MPa for 1 hour, and then perform a secondary vulcanization at 100°C for 4 hours to obtain a high-strength, anti-destruction rubber dam material #4.

[0039] Example 5: This example discloses a high-strength, anti-destruction rubber dam material #5 and its preparation method.

[0040] Calculated by total weight, the high-strength, anti-destruction rubber dam material comprises, from the outside to the inside, 190 parts of a rubber protective layer, 40 parts of a stainless steel mesh skeleton layer, 25 parts of a metal reinforcement layer, and 120 parts of a pressure-bearing layer; the rubber protective layer comprises 182 parts of modified chloroprene rubber and 7 parts of an anti-chewing agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer comprises copper-plated steel wires arranged in a 45° oblique cross pattern; the pressure-bearing layer comprises 100 parts of natural rubber and 17 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-chewing agent comprises 0.8 parts of capsaicin, 0.45 parts of menthol, and 0.27 parts of cinnamaldehyde.

[0041] The preparation method comprises the following steps: Preparation of modified chloroprene rubber: Based on the mass fraction of the rubber protective layer, 100 parts of chloroprene rubber were thin-passed four times at 45°C, the thin-passed chloroprene rubber, 5 parts of ZnO, and 4 parts of MgO were mixed at a speed of 60 rpm and 100°C for 3 minutes, 45 parts of carbon black, 20 parts of white carbon black, and 2 parts of silane coupling agent Si69 were added and mixed for 4 minutes, 12 parts of phenolic resin and 2 parts of antioxidant RD were added and mixed for 3 minutes, and finally 1 part of stearic acid was added and mixed for 2 minutes to form a banburying rubber compound, which was thin-passed three times at 55°C, 2.5 parts of sulfur and 1.5 parts of accelerator DM were added, and the compound was vulcanized at a temperature of 165°C and a pressure of 13 MPa for 30 minutes to obtain the modified chloroprene rubber; Preparation of rubber protective layer: Modified chloroprene rubber and anti-bite agent are mixed at 120℃ for 5 minutes, cooled to 80℃ and thinned three times; Preparation of stainless steel mesh skeleton layer: Soak the diamond-woven stainless steel mesh in 10% HNO3 and 3% HF solution for 5 minutes, apply epoxy resin adhesive and pre-cure in an 80°C oven for 15 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 20% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 45° angle and let it stand for 5 minutes; Preparation of the pressure-bearing layer: natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking the layers from the outside to the inside, vulcanize at a temperature of 170°C and a pressure of 15 MPa for 1 hour, and then perform a secondary vulcanization at 100°C for 4 hours to obtain a high-strength, anti-destruction rubber dam material #5.

[0042] Example 6: This example discloses a high-strength, anti-destruction rubber dam material #6 and its preparation method.

[0043] Calculated by total weight, the high-strength and anti-destruction rubber dam material includes, from the outside to the inside, 190 parts of a rubber protective layer, 40 parts of a stainless steel mesh skeleton layer, 25 parts of a metal reinforcement layer, and 120 parts of a pressure-bearing layer; the rubber protective layer includes 182 parts of modified chloroprene rubber and 7 parts of an anti-bite agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer includes copper-plated steel wires arranged in a 45° oblique cross pattern; the pressure-bearing layer includes 100 parts of natural rubber and 17 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-bite agent includes 2.7 parts of 3,3'-dithiodipropionic acid, 1.8 parts of N-hydroxysuccinimide, 2.2 parts of 1-ethyl-(3-dimethylaminopropyl)carbodiimide, 2.3 parts of cystamine, 0.7 parts of capsaicin, 0.45 parts of menthol, 0.27 parts of cinnamaldehyde, and 0.2 parts of 3-aminopropyltriethoxysilane.

[0044] The preparation method comprises the following steps: Preparation of the anti-chewing agent: 3,3'-dithiodipropionic acid and N-hydroxysuccinimide were dissolved in N,N-dimethylformamide solution, 1-ethyl-(3-dimethylaminopropyl)carbodiimide was added to activate the carboxyl groups at 0°C for 30 minutes, cystamine was added dropwise, and the reaction was carried out at 25°C for 12 hours to form disulfide-crosslinked polyamide microspheres. Capsaicin, menthol, and cinnamaldehyde were dissolved in ethanol and added to the polyamide microspheres. The solution was vacuumed at 40°C and -0.1 MPa for 2 hours, and the surface of the microspheres was treated with 3-aminopropyltriethoxysilane to obtain the anti-chewing agent. Preparation of modified chloroprene rubber: Based on the mass fraction of the rubber protective layer, 100 parts of chloroprene rubber were thin-passed four times at 45°C, the thin-passed chloroprene rubber, 5 parts of ZnO, and 4 parts of MgO were mixed at a speed of 60 rpm and 100°C for 3 minutes, 45 parts of carbon black, 20 parts of white carbon black, and 2 parts of silane coupling agent Si69 were added and mixed for 4 minutes, 12 parts of phenolic resin and 2 parts of antioxidant RD were added and mixed for 3 minutes, and finally 1 part of stearic acid was added and mixed for 2 minutes to form a banburying rubber compound, which was thin-passed three times at 55°C, 2.5 parts of sulfur and 1.5 parts of accelerator DM were added, and the compound was vulcanized at a temperature of 165°C and a pressure of 13 MPa for 30 minutes to obtain the modified chloroprene rubber; Preparation of rubber protective layer: Modified chloroprene rubber and anti-bite agent are mixed at 120℃ for 5 minutes, cooled to 80℃ and thinned three times; Preparation of stainless steel mesh skeleton layer: Soak the diamond-woven stainless steel mesh in 10% HNO3 and 3% HF solution for 5 minutes, apply epoxy resin adhesive and pre-cure in an 80°C oven for 15 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 20% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 45° angle and let it stand for 5 minutes; Preparation of the pressure-bearing layer: natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking the layers from the outside to the inside, vulcanize at a temperature of 170°C and a pressure of 15 MPa for 1 hour, and then perform a secondary vulcanization at 100°C for 4 hours to obtain a high-strength, anti-destruction rubber dam material #6.

[0045] Example 7: This example discloses a high-strength, anti-destruction rubber dam material #7 and its preparation method.

[0046] Calculated by total weight, the high-strength, anti-destruction rubber dam material includes, from the outside to the inside, 190 parts of a rubber protective layer, 40 parts of a stainless steel mesh skeleton layer, 25 parts of a metal reinforcement layer, and 120 parts of a pressure-bearing layer; the rubber protective layer includes 182 parts of chloroprene rubber and 7 parts of an anti-bite agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer includes copper-plated steel wires arranged in a 45° oblique cross pattern; the pressure-bearing layer includes 100 parts of modified natural rubber and 17 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-bite agent includes 0.8 parts of capsaicin, 0.45 parts of menthol, and 0.27 parts of cinnamaldehyde.

[0047] The preparation method comprises the following steps: Preparation of rubber protective layer: After the chloroprene rubber is masticated, it is mixed with the anti-bite agent at 120℃ for 5 minutes, cooled to 80℃ and thinned three times; Preparation of stainless steel mesh skeleton layer: Soak the diamond-woven stainless steel mesh in 10% HNO3 and 3% HF solution for 5 minutes, apply epoxy resin adhesive and pre-cure in an 80°C oven for 15 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 20% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 45° angle and let it stand for 5 minutes; Preparation of modified natural rubber: Based on the mass of the pressure-bearing layer, 100 parts of natural rubber were thin-passed three times at 45°C, the thin-passed natural rubber, 5 parts of ZnO, and 2 parts of stearic acid were mixed at a speed of 60 rpm and 100°C for 1 minute, 17 parts of white carbon black and 2 parts of silane coupling agent Si69 were added and mixed for 4 minutes, the temperature was lowered to 70°C, 1.7 parts of sulfur, 1.2 parts of accelerator CBS, 2 parts of antioxidant 6PPD, and 5 parts of polyisoprene were added and mixed for 3 minutes, the rubber was discharged at 100°C, the sheet was removed, and the sheet was cooled to room temperature. The modified natural rubber was obtained by vulcanization at a temperature of 150°C and a pressure of 12 MPa for 15 minutes. Preparation of the pressure-bearing layer: natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking the layers from the outside to the inside, vulcanize at a temperature of 170°C and a pressure of 15 MPa for 1 hour, and then perform a secondary vulcanization at 100°C for 4 hours to obtain a high-strength, anti-destruction rubber dam material #7.

[0048] Example 8: This example discloses a high-strength, anti-destruction rubber dam material #8 and its preparation method.

[0049] Calculated by total weight, the high-strength and anti-destruction rubber dam material includes, from the outside to the inside, 190 parts of a rubber protective layer, 40 parts of a stainless steel mesh skeleton layer, 25 parts of a metal reinforcement layer, and 120 parts of a pressure-bearing layer; the rubber protective layer includes 182 parts of chloroprene rubber and 7 parts of an anti-bite agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer includes copper-plated steel wires arranged in a 45° oblique cross pattern; the pressure-bearing layer includes 100 parts of modified natural rubber and 17 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-bite agent includes 2.7 parts of 3,3'-dithiodipropionic acid, 1.8 parts of N-hydroxysuccinimide, 2.2 parts of 1-ethyl-(3-dimethylaminopropyl)carbodiimide, 2.3 parts of cystamine, 0.7 parts of capsaicin, 0.45 parts of menthol, 0.27 parts of cinnamaldehyde, and 0.2 parts of 3-aminopropyltriethoxysilane.

[0050] The preparation method comprises the following steps: Preparation of the anti-chewing agent: 3,3'-dithiodipropionic acid and N-hydroxysuccinimide were dissolved in N,N-dimethylformamide solution, 1-ethyl-(3-dimethylaminopropyl)carbodiimide was added to activate the carboxyl groups at 0°C for 30 minutes, cystamine was added dropwise, and the reaction was carried out at 25°C for 12 hours to form disulfide-crosslinked polyamide microspheres. Capsaicin, menthol, and cinnamaldehyde were dissolved in ethanol and added to the polyamide microspheres. The solution was vacuumed at 40°C and -0.1 MPa for 2 hours, and the surface of the microspheres was treated with 3-aminopropyltriethoxysilane to obtain the anti-chewing agent. Preparation of rubber protective layer: After the chloroprene rubber is masticated, it is mixed with the anti-bite agent at 120℃ for 5 minutes, cooled to 80℃ and thinned three times; Preparation of stainless steel mesh skeleton layer: Soak the diamond-woven stainless steel mesh in 10% HNO3 and 3% HF solution for 5 minutes, apply epoxy resin adhesive and pre-cure in an 80°C oven for 15 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 20% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 45° angle and let it stand for 5 minutes; Preparation of modified natural rubber: Based on the mass of the pressure-bearing layer, 100 parts of natural rubber were thin-passed three times at 45°C, the thin-passed natural rubber, 5 parts of ZnO, and 2 parts of stearic acid were mixed at a speed of 60 rpm and 100°C for 1 minute, 17 parts of white carbon black and 2 parts of silane coupling agent Si69 were added and mixed for 4 minutes, the temperature was lowered to 70°C, 1.7 parts of sulfur, 1.2 parts of accelerator CBS, 2 parts of antioxidant 6PPD, and 5 parts of polyisoprene were added and mixed for 3 minutes, the rubber was discharged at 100°C, the sheet was removed, and the sheet was cooled to room temperature. The modified natural rubber was obtained by vulcanization at a temperature of 150°C and a pressure of 12 MPa for 15 minutes. Preparation of the pressure-bearing layer: Modified natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking the layers from the outside to the inside, vulcanize at a temperature of 170°C and a pressure of 15 MPa for 1 hour, and then perform a secondary vulcanization at 100°C for 4 hours to obtain a high-strength, anti-destruction rubber dam material #8.

[0051] Example 9: This example discloses a high-strength, anti-destruction rubber dam material #9 and its preparation method.

[0052] Calculated by total weight, the high-strength, anti-destruction rubber dam material includes, from the outside to the inside, 190 parts of a rubber protective layer, 40 parts of a stainless steel mesh skeleton layer, 25 parts of a metal reinforcement layer, and 120 parts of a pressure-bearing layer; the rubber protective layer includes 182 parts of modified chloroprene rubber and 7 parts of an anti-bite agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer includes copper-plated steel wires arranged at a 45° oblique cross; the pressure-bearing layer includes 100 parts of modified natural rubber and 17 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-bite agent includes 0.8 parts of capsaicin, 0.45 parts of menthol, and 0.27 parts of cinnamaldehyde.

[0053] The preparation method comprises the following steps: Preparation of modified chloroprene rubber: Based on the mass fraction of the rubber protective layer, 100 parts of chloroprene rubber were thin-passed four times at 45°C, the thin-passed chloroprene rubber, 5 parts of ZnO, and 4 parts of MgO were mixed at a speed of 60 rpm and 100°C for 3 minutes, 45 parts of carbon black, 20 parts of white carbon black, and 2 parts of silane coupling agent Si69 were added and mixed for 4 minutes, 12 parts of phenolic resin and 2 parts of antioxidant RD were added and mixed for 3 minutes, and finally 1 part of stearic acid was added and mixed for 2 minutes to form a banburying rubber compound, which was thin-passed three times at 55°C, 2.5 parts of sulfur and 1.5 parts of accelerator DM were added, and the compound was vulcanized at a temperature of 165°C and a pressure of 13 MPa for 30 minutes to obtain the modified chloroprene rubber; Preparation of rubber protective layer: Modified chloroprene rubber and anti-bite agent are mixed at 120℃ for 5 minutes, cooled to 80℃ and thinned three times; Preparation of stainless steel mesh skeleton layer: Soak the diamond-woven stainless steel mesh in 10% HNO3 and 3% HF solution for 5 minutes, apply epoxy resin adhesive and pre-cure in an 80°C oven for 15 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 20% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 45° angle and let it stand for 5 minutes; Preparation of modified natural rubber: Based on the mass of the pressure-bearing layer, 100 parts of natural rubber were thin-passed three times at 45°C, the thin-passed natural rubber, 5 parts of ZnO, and 2 parts of stearic acid were mixed at a speed of 60 rpm and 100°C for 1 minute, 17 parts of white carbon black and 2 parts of silane coupling agent Si69 were added and mixed for 4 minutes, the temperature was lowered to 70°C, 1.7 parts of sulfur, 1.2 parts of accelerator CBS, 2 parts of antioxidant 6PPD, and 5 parts of polyisoprene were added and mixed for 3 minutes, the rubber was discharged at 100°C, the sheet was removed, and the sheet was cooled to room temperature. The modified natural rubber was obtained by vulcanization at a temperature of 150°C and a pressure of 12 MPa for 15 minutes. Preparation of the pressure-bearing layer: Modified natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking the layers from the outside to the inside, vulcanize at a temperature of 170°C and a pressure of 15 MPa for 1 hour, and then perform a secondary vulcanization at 100°C for 4 hours to obtain a high-strength, anti-destruction rubber dam material #9.

[0054] Example 10: This example discloses a high-strength, anti-destruction rubber dam material #10 and its preparation method.

[0055] Calculated by total weight, the high-strength and anti-destruction rubber dam material includes, from the outside to the inside, 190 parts of a rubber protective layer, 40 parts of a stainless steel mesh skeleton layer, 25 parts of a metal reinforcement layer, and 120 parts of a pressure-bearing layer; the rubber protective layer includes 182 parts of modified chloroprene rubber and 7 parts of an anti-bite agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer includes copper-plated steel wires arranged in a 45° oblique cross pattern; the pressure-bearing layer includes 100 parts of modified natural rubber and 17 parts of spiral nylon rope; calculated by weight of the rubber protective layer, the anti-bite agent includes 2.7 parts of 3,3'-dithiodipropionic acid, 1.8 parts of N-hydroxysuccinimide, 2.2 parts of 1-ethyl-(3-dimethylaminopropyl)carbodiimide, 2.3 parts of cystamine, 0.7 parts of capsaicin, 0.45 parts of menthol, 0.27 parts of cinnamaldehyde, and 0.2 parts of 3-aminopropyltriethoxysilane.

[0056] The preparation method comprises the following steps: Preparation of the anti-chewing agent: 3,3'-dithiodipropionic acid and N-hydroxysuccinimide were dissolved in N,N-dimethylformamide solution, 1-ethyl-(3-dimethylaminopropyl)carbodiimide was added to activate the carboxyl groups at 0°C for 30 minutes, cystamine was added dropwise, and the reaction was carried out at 25°C for 12 hours to form disulfide-crosslinked polyamide microspheres. Capsaicin, menthol, and cinnamaldehyde were dissolved in ethanol and added to the polyamide microspheres. The solution was vacuumed at 40°C and -0.1 MPa for 2 hours, and the surface of the microspheres was treated with 3-aminopropyltriethoxysilane to obtain the anti-chewing agent. Preparation of modified chloroprene rubber: Based on the mass fraction of the rubber protective layer, 100 parts of chloroprene rubber were thin-passed four times at 45°C, the thin-passed chloroprene rubber, 5 parts of ZnO, and 4 parts of MgO were mixed at a speed of 60 rpm and 100°C for 3 minutes, 45 parts of carbon black, 20 parts of white carbon black, and 2 parts of silane coupling agent Si69 were added and mixed for 4 minutes, 12 parts of phenolic resin and 2 parts of antioxidant RD were added and mixed for 3 minutes, and finally 1 part of stearic acid was added and mixed for 2 minutes to form a banburying rubber compound, which was thin-passed three times at 55°C, 2.5 parts of sulfur and 1.5 parts of accelerator DM were added, and the compound was vulcanized at a temperature of 165°C and a pressure of 13 MPa for 30 minutes to obtain the modified chloroprene rubber; Preparation of rubber protective layer: Modified chloroprene rubber and anti-bite agent are mixed at 120℃ for 5 minutes, cooled to 80℃ and thinned three times; Preparation of stainless steel mesh skeleton layer: Soak the diamond-woven stainless steel mesh in 10% HNO3 and 3% HF solution for 5 minutes, apply epoxy resin adhesive and pre-cure in an 80°C oven for 15 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 20% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 45° angle and let it stand for 5 minutes; Preparation of modified natural rubber: Based on the mass of the pressure-bearing layer, 100 parts of natural rubber were thin-passed three times at 45°C, the thin-passed natural rubber, 5 parts of ZnO, and 2 parts of stearic acid were mixed at a speed of 60 rpm and 100°C for 1 minute, 17 parts of white carbon black and 2 parts of silane coupling agent Si69 were added and mixed for 4 minutes, the temperature was lowered to 70°C, 1.7 parts of sulfur, 1.2 parts of accelerator CBS, 2 parts of antioxidant 6PPD, and 5 parts of polyisoprene were added and mixed for 3 minutes, the rubber was discharged at 100°C, the sheet was removed, and the sheet was cooled to room temperature. The modified natural rubber was obtained by vulcanization at a temperature of 150°C and a pressure of 12 MPa for 15 minutes. Preparation of the pressure-bearing layer: natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking the layers from the outside to the inside, vulcanize at a temperature of 170°C and a pressure of 15 MPa for 1 hour, and then perform a secondary vulcanization at 100°C for 4 hours to obtain a high-strength, anti-destruction rubber dam material #10.

[0057] Comparative Example 1: This comparative example provides a comparative rubber dam material D1 that is the same as Example 10, except that the rubber protective layer does not include an anti-chewing agent.

[0058] Comparative Example 2: This comparative example provides a comparative rubber dam material D1 that is the same as Example 10, except that the stainless steel skeleton is a plain woven stainless steel mesh.

[0059] Comparative Example 3: This comparative example provides a comparative rubber dam material D1 that is the same as Example 10, except that the metal reinforcement layer includes parallel and crossed copper-plated steel wires.

[0060] Comparative Example 4: This comparative example provides a comparative rubber dam material D1 that is the same as Example 10, except that the pressure-bearing layer includes a non-helical nylon rope.

[0061] The high-strength, anti-destruction rubber dam materials #1-#10 of Examples 1-10 and the comparative rubber dam skeleton materials D1-D4 of Comparative Examples 1-4 were subjected to tensile strength tests (ASTM D412), interfacial peel strength tests (ASTM D429), tear resistance tests (ASTM D624), and impact resistance tests (ASTM D7136). The test results are shown in Table 1.

[0062] Table 1

[0063] As shown in the data of Examples 1-3 in Table 1, especially the data of Example 3, it can be seen that through the reasonable ratio of the components of the high-strength anti-destruction rubber dam material, the tensile strength, interfacial peeling strength, tear resistance and impact resistance of the high-strength anti-destruction rubber dam material of the present application are relatively excellent.

[0064] Compared to Example 3, Example 4 uses a different anti-chew agent. The resulting high-strength, anti-destruction rubber dam material #4 exhibits superior properties to high-strength, anti-destruction rubber dam material #3. This is because capsaicin activates pain receptors in fish and mammals, triggering a burning sensation that forces them to flee. Menthol stimulates the olfactory nerves, producing a cooling, unpleasant sensation and enhancing the repellent range (spreading to the surrounding waters). Cinnamaldehyde disrupts microbial cell membranes, inhibiting the attachment of algae and shellfish. The active ingredient is encapsulated in disulfide-crosslinked microspheres. Chewing by an organism causes the microsphere surface to rupture, exposing the active ingredient. The exposed disulfide bonds are then cleaved by oral glutathione reduction. Treatment of the microsphere surface with 3-aminopropyltriethoxysilane allows the amino groups (-NH2) on the microsphere surface to form amide bonds with the carboxyl groups (-COOH) in the rubber, improving peel strength. The weak acidity of fish saliva promotes protonation of the 3-aminopropyltriethoxysilane on the microsphere surface, enhancing hydrophilicity and accelerating dissolution, thereby synergistically enhancing release.

[0065] Compared with Example 3, and with Example 4, Example 6 uses modified chloroprene rubber. The resulting high-strength, anti-destruction rubber dam material #5 exhibits superior performance across all aspects to high-strength, anti-destruction rubber dam material #3, and high-strength, anti-destruction rubber dam material #6 exhibits superior performance across all aspects to high-strength, anti-destruction rubber dam material #4. This is because the carbon black and silica in the modified chloroprene rubber form a rigid network that restricts molecular chain motion. Upon impact, the rigid network absorbs energy through temporary destruction, with the remaining energy dissipated through elastic deformation of the rubber. Sulfur and the accelerator DM form polysulfide crosslinks, increasing the density of the three-dimensional network, increasing the number of crosslink points, and improving the elastic modulus. Phenolic resin co-crosslinks with the chloroprene rubber, introducing a rigid phase and enhancing hardness. Silica forms chemical bonds with the chloroprene rubber via the silane coupling agent Si69, reducing energy loss due to interfacial slip. This allows the rubber protective layer to withstand direct impact with drifting objects such as branches and rocks in the current, preventing surface damage. It reduces material loss caused by friction from sand, gravel, and ice, extending its service life. Its high-hardness surface makes it difficult for fish and shellfish to penetrate, and its anti-bite additive provides dual protection. It also resists aging factors such as UV rays, ozone, and hydrolysis, maintaining long-term performance stability.

[0066] Compared with Example 3, Example 8 with Example 4, Example 9 with Example 5, and Example 10 with Example 6, the modified natural rubber used in Example 7 resulted in high-strength, anti-destruction rubber dam material #7 exhibiting superior properties to high-strength, anti-destruction rubber dam material #3. High-strength, anti-destruction rubber dam material #8 exhibited superior properties to high-strength, anti-destruction rubber dam material #4. High-strength, anti-destruction rubber dam material #9 exhibited superior properties to high-strength, anti-destruction rubber dam material #5. High-strength, anti-destruction rubber dam material #10 exhibited superior properties to high-strength, anti-destruction rubber dam material #6. This is because the sulfur in the modified natural rubber forms flexible polysulfide bonds with the accelerator CZ, and the silane coupling agent Si69 modifies silica to form a flexible interface layer, reducing filler frictional energy loss. Liquid polyisoprene, as a plasticizer, lubricates the molecular chains and enhances segment mobility. The bearing layer directly withstands water pressure (0.5-1.5 MPa), dispersing stress through large deformation and preventing localized bursting. It absorbs the kinetic energy of water flow, reducing vibration transmitted to the dam foundation. Rapid rebound during the charge and discharge cycles reduces permanent deformation. Its high elasticity ensures a tight fit with the metal reinforcement layer, blocking leakage paths.

[0067] Compared to Example 10, in Comparative Example 1, the rubber protective layer did not include an anti-chew agent. In Comparative Example 2, the stainless steel framework was a plain-woven stainless steel mesh. Compared to Example 10, in Comparative Example 3, the metal reinforcement layer comprised parallel, intersecting copper-plated steel wires. Compared to Example 10, in Comparative Example 4, the pressure-bearing layer comprised non-helical nylon rope. The resulting comparative rubber dam framework materials D1-D4 all exhibited inferior performance to the high-strength, vandal-resistant rubber dam material #10 of the present application.

[0068] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-strength, anti-destruction rubber dam material, characterized in that: Calculated by total weight, the high-strength, anti-destruction rubber dam material comprises, from the outside to the inside, 185-195 parts of a rubber protective layer, 35-45 parts of a stainless steel mesh skeleton layer, 20-30 parts of a metal reinforcement layer, and 115-125 parts of a pressure-bearing layer; the rubber protective layer comprises 180-185 parts of chloroprene rubber and 5-10 parts of an anti-chewing agent; the stainless steel skeleton is a diamond-woven stainless steel mesh; the metal reinforcement layer comprises copper-plated steel wires arranged obliquely and cross-wise at 43°-47°; the pressure-bearing layer comprises 100-105 parts of natural rubber and 15-20 parts of spiral nylon rope; and, by weight of the rubber protective layer, the anti-chewing agent comprises 0.5-1 parts of capsaicin, 0.4-0.5 parts of menthol, and 0.25-0.3 parts of cinnamaldehyde.

2. The high-strength, anti-destruction rubber dam material according to claim 1, characterized in that: Calculated by weight of the rubber protective layer, the anti-chewing agent includes 2.5-3 parts of 3,3'-dithiodipropionic acid, 1.5-2 parts of N-hydroxysuccinimide, 2-2.5 parts of 1-ethyl-(3-dimethylaminopropyl)carbodiimide, 2-2.5 parts of cystamine, 0.5-1 part of capsaicin, 0.4-0.5 part of menthol, 0.25-0.3 part of cinnamaldehyde, and 0.1-0.3 part of 3-aminopropyltriethoxysilane.

3. A high-strength, anti-destruction rubber dam material according to claim 1 or 2, characterized in that: The chloroprene rubber is a modified chloroprene rubber, and the preparation steps of the modified chloroprene rubber are as follows: according to the mass fraction of the rubber protective layer, 95-105 parts of chloroprene rubber are thin-passed at 40-50° C. for 3-5 times, the thin-passed chloroprene rubber, 4-6 parts of ZnO, and 3-5 parts of MgO are mixed at a speed of 55-65 rpm and 100-110° C. for 1-3 minutes, and then 40-50 parts of carbon black, 15-25 parts of white carbon black, and 1-3 parts of silane coupling agent S are added. i69 is mixed for 3-5 minutes, 10-15 parts of phenolic resin and 1-3 parts of antioxidant RD are added and mixed for 2-5 minutes, and finally 0.5-1.5 parts of stearic acid are added and mixed for 1-3 minutes to form a banburying rubber compound, which is thinned 3-4 times at a temperature of 50-60°C, 2-3 parts of sulfur and 1-2 parts of accelerator DM are added, and vulcanized at a temperature of 160-170°C and a pressure of 12-15 MPa for 25-35 minutes to obtain a modified chloroprene rubber.

4. The method for preparing a high-strength and anti-destruction rubber dam material according to claim 3, characterized in that: The natural rubber is modified natural rubber, and the preparation steps of the modified natural rubber are as follows: according to the mass fraction of the pressure-bearing layer, 95-105 parts of natural rubber are thin-passed at 45-50° C. for 3-5 times, the thin-passed natural rubber, 4-6 parts of ZnO, and 1-3 parts of stearic acid are mixed at a rotation speed of 55-65 rpm and 90-100° C. for 1-3 minutes, 15-20 parts of white carbon black and 1-3 parts of silane coupling agent Si69 are added and mixed for 3-5 minutes, the temperature is lowered to 65-75° C., 1.5-2 parts of sulfur, 1-1.5 parts of accelerator CBS, 1-3 parts of antioxidant 6PPD, and 4-6 parts of polyisoprene are added and mixed for 1-3 minutes, the rubber is discharged at 90-100° C., the sheet is removed, the sheet is cooled to room temperature, and the modified natural rubber is vulcanized at a temperature of 145-155° C. and a pressure of 10-12 MPa for 15-20 minutes to obtain the modified natural rubber.

5. A method for preparing the high-strength, anti-destruction rubber dam material according to any one of claims 1 to 4, characterized in that: The preparation method comprises the following steps: Preparation of rubber protective layer: After plasticizing the chloroprene rubber, mix it with the anti-bite agent at 115-125℃ for 5-8min, cool it to 75-80℃ and pass it through thinly 3-4 times; Preparation of stainless steel mesh skeleton layer: soak the diamond-woven stainless steel mesh in 8-10% HNO3 and 1-3% HF solution for 5-8 minutes, apply epoxy resin adhesive and pre-cure in a 75-80°C oven for 15-20 minutes until semi-dry; Preparation of metal reinforcement layer: Spray 15-25% solid content chloroprene rubber slurry on the copper-plated steel cord layer arranged at a 43°-47° angle and let it stand for 5-8 minutes; Preparation of the pressure-bearing layer: natural rubber is mixed and rolled into sheets, and spiral nylon ropes are embedded in the sheets simultaneously; Overall vulcanization process: After stacking from the outside to the inside, vulcanize at a temperature of 150-180℃ and a pressure of 10-20MPa for 1-2 hours, and then perform secondary vulcanization at 95-100℃ for 3-5 hours to obtain a high-strength and anti-destruction rubber dam material.

6. The method for preparing a high-strength and anti-destruction rubber dam material according to claim 5, characterized in that: The preparation steps of the anti-chewing agent are as follows: dissolving 3,3'-dithiodipropionic acid and N-hydroxysuccinimide in an N,N-dimethylformamide solution, adding 1-ethyl-(3-dimethylaminopropyl)carbodiimide to activate the carboxyl group at 0°C for 25-35 minutes, adding cystamine dropwise, reacting at 20-30°C for 10-14 hours to generate disulfide-crosslinked polyamide microspheres, dissolving capsaicin, menthol, and cinnamaldehyde in ethanol, adding the solution to the polyamide microspheres, vacuuming at 35-45°C and -0.1 MPa for 1-3 hours, and finally treating the surface of the microspheres with 3-aminopropyltriethoxysilane to obtain the anti-chewing agent.

7. A rubber dam, characterized in that: The rubber dam comprises the high-strength anti-destruction rubber dam material as claimed in any one of claims 1-4, or the high-strength anti-destruction rubber dam material prepared by the preparation method of the high-strength anti-destruction rubber dam material as claimed in any one of claims 5-6.

8. Use of the rubber dam according to claim 7 in river regulation, agricultural irrigation, flood control, shipping and transportation, and rubber dam construction under high water pressure environments.

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