Ceramic tile anti-skid treatment gel patch suitable for inclined vertical face and preparation method of ceramic tile anti-skid treatment gel patch
By combining a PEVA base layer, an anti-slip surface layer, and an adhesive layer, the design solves the problems of wear resistance, adhesion, and transparency of tiles on sloping surfaces, achieving a highly effective anti-slip effect that meets the safety and aesthetic requirements of tiles on sloping surfaces.
Patent Information
- Application Number
- CN202511673053.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-02-27
AI Technical Summary
Existing anti-slip ceramic tile products have poor wear resistance on sloping surfaces, are not firmly adhered, are prone to falling off, and have low transparency, affecting aesthetics. They also pose serious safety hazards, especially in humid environments.
The gel patch is designed with a combination of PEVA base layer, anti-slip surface layer and adhesive layer. The PEVA base layer is composed of high-density polyethylene, low-density polyethylene, ultra-high molecular weight polyethylene, nano calcium carbonate, etc. The anti-slip surface layer adopts a combination of micron-level raised structure and nanoparticle coating. The adhesive layer contains terpene phenolic resin and silane coupling agent. The gel patch is prepared by plasma treatment and composite process.
It significantly improves the wear resistance and bonding strength of the tiles, has excellent anti-slip properties, high transparency, and does not affect the aesthetics of the tiles. It is suitable for anti-slip treatment of sloping vertical surfaces in damp environments.
Abstract
Description
Technical Field
[0001] This invention relates to the field of anti-slip materials for buildings, specifically to an anti-slip gel patch for ceramic tiles suitable for sloping facades and its preparation method. Background Technology
[0002] In the field of architectural decoration, ceramic tiles are widely used on walls, stairs, and other areas due to their aesthetic appeal and durability. However, sloping ceramic tiles are extremely slippery in damp environments, posing a serious safety hazard. For example, in areas such as bathrooms and stairwells, sloping ceramic tiles can easily cause slips and falls when wet. Currently, most anti-slip tile products on the market are designed for flat surfaces, and their anti-slip effect on sloping tiles is not good. Traditional anti-slip stickers have problems such as poor wear resistance, weak adhesion to tiles, and easy detachment on sloping surfaces. In addition, some products have low transparency, which affects the original aesthetics of the tiles. Summary of the Invention
[0003] The purpose of this invention is to overcome the above-mentioned shortcomings in the prior art and provide a gel patch for anti-slip treatment of ceramic tiles suitable for sloping surfaces. This gel patch has excellent wear resistance, strong adhesion and good anti-slip effect, can be stably adhered to ceramic tiles on sloping surfaces, and has high transparency so as not to affect the appearance of the tiles.
[0004] To address the aforementioned technical issues, this invention provides a gel-based anti-slip treatment for ceramic tiles suitable for sloping surfaces. The gel comprises a PEVA base layer, an anti-slip surface layer, an adhesive layer, and a backing paper. The PEVA base layer includes 50-60 parts by weight of high-density polyethylene, 5-10 parts by weight of low-density polyethylene, 3-5 parts by weight of ultra-high molecular weight polyethylene, 2-4 parts by weight of nano-calcium carbonate, 20-30 parts by weight of vinyl acetate, 8-12 parts by weight of dioctyl terephthalate, 3-5 parts by weight of epoxidized soybean oil, 0.8-1.8 parts by weight of organotin heat stabilizer, 0.3-0.5 parts by weight of antioxidant, 0.3-0.6 parts by weight of light stabilizer, and 0.1-0.5 parts by weight of color masterbatch. The adhesive layer comprises 25-35 parts by weight of methyl methacrylate, 55-65 parts by weight of butyl acrylate, 5-7 parts by weight of acrylic acid, 3-5 parts by weight of HDI trimer, 1-2 parts by weight of fumed silica, 0.2-0.4 parts by weight of initiator, 8-12 parts by weight of tackifying resin, 2-4 parts by weight of terpene phenolic resin, and 0.5-1.0 parts by weight of silane coupling agent.
[0005] Furthermore, the method for preparing the PEVA base layer includes the following steps: S1: Dry high-density polyethylene, low-density polyethylene and ultra-high molecular weight polyethylene separately in an oven, add nano-calcium carbonate to a high-speed mixer, and spray with stearic acid for surface activation treatment. S2: Weigh out vinyl acetate, dioctyl terephthalate and epoxidized soybean oil by weight and add them to the mixing tank, then stir to form a plasticizer mixture; Add the pretreated polyethylene raw materials, nano calcium carbonate, organotin heat stabilizer, antioxidant, light stabilizer and color masterbatch to the plasticizer mixture in sequence, and stir until the materials are evenly mixed; S3: The mixture is fed into a twin-screw extruder, where the components are fully dispersed by melt shearing, and then extruded through a die to form a sheet. S4: The extruded sheet immediately enters the three-roll calender, where the surface of the sheet is smoothed by roller traction and calendering, and then cooled to room temperature in a cold water bath; S5: The surface of the cooled sheet is modified using plasma treatment equipment.
[0006] Furthermore, in S1, the oven temperature is set to 60-80℃, and the drying time is set to 2-4 hours. In S2, the mixing vessel temperature is set to 50-60℃, the rotation speed is set to 300-500 r / min, and the stirring time is set to 10-15 minutes. In S3, the twin-screw extruder is set to extrude with the following parameters: feeding section temperature 140-160℃, compression section temperature 160-180℃, homogenization section temperature 170-190℃, die head temperature 180-200℃, screw speed controlled at 200-300 r / min, and vacuum degree maintained at -0.06 to -0.08 MPa. In S5, the plasma treatment equipment has a processing power of 300-500W, a processing time of 30-60 seconds, an oxygen atmosphere, and a flow rate of 10-20 L / min.
[0007] Furthermore, the method for preparing the adhesive layer includes the following steps: M1: Methyl methacrylate, butyl acrylate, and acrylic acid are filtered through a filter membrane respectively; The tackifying resin and terpene phenolic resin are preheated and softened in an oven; The silane coupling agent was diluted with deionized water and then hydrolyzed and activated by stirring. M2: Add deionized water and emulsifier to a reactor equipped with a stirrer, thermometer and reflux condenser, and stir until completely dissolved; The pretreated mixed monomers were slowly added dropwise, and stirring was continued after the addition was complete to form a stable pre-emulsion. M3: Heat the pre-emulsion to 70-75℃, add the initiator, and react under nitrogen protection. The appearance of blue light in the system indicates that the polymerization reaction has started. Continue heating to 80-85℃ for the reaction, adding 1 / 3 of the remaining initiator every 30 minutes during the process, until the monomers are fully polymerized; M4: Cool to 50-60℃, add HDI trimer and activated silane coupling agent, and stir to promote the cross-linking reaction; Add the preheated tackifying resin, terpene phenolic resin and fumed silica in sequence, and stir until completely dispersed; M5: Adjust the pH of the system with ammonia water, filter through a filter screen to remove undispersed particles and gel, and obtain a uniform adhesive layer solution; M6: The adhesive solution is stored in a sealed container and allowed to mature for 24 hours to allow the crosslinking reaction to proceed fully; Depending on the coating requirements, an appropriate amount of deionized water can be added to adjust the working viscosity.
[0008] Furthermore, in M1, the oven temperature is set to 60-70℃, the preheating time is set to 1-2 hours, the silane coupling agent in M1 is KH-550, the amount of deionized water in M2 is 60-80% of the total monomer mass, the emulsifier in M2 is sodium dodecyl sulfate, the dropping time in M2 is controlled at 30-40 minutes, and stirring is continued for 20-30 minutes after the dropping is completed, the emulsion particle size of the pre-emulsion in M2 is controlled at 100-200 nm, the initiator in M3 is azobisisobutyronitrile, the nitrogen flow rate is set to 10-20 L / h, the pH value in M5 is adjusted to 6.5-7.5, and the filter screen is a 100-200 mesh filter screen.
[0009] A method for preparing a gel-coated anti-slip coating for ceramic tiles suitable for sloping surfaces includes the following steps: Step 1: PEVA base layer, after melt blending and extrusion, cooling and shaping and plasma surface treatment, to obtain PEVA base layer roll material; Step 2: Anti-slip surface layer. The PEVA base layer roll is fed into a laser engraving machine to engrave a grid-like micron-level protrusion on the surface. Silica nanoparticles, silane coupling agent and deionized water were mixed in a 1:10 ratio and then ultrasonically dispersed. The nano-coating liquid is evenly coated onto the raised surface using a slot coater and cured in an oven to form a nano-anti-slip layer. Step 3: Adhesive layer, after pre-emulsification polymerization, addition of functional additives and curing, the adhesive layer solution is obtained; Step 4: Base paper pretreatment. Glassine paper is selected and coated with a mixture of methyl silicone oil and fluorinated silicone oil using a gravure coating machine. After coating and curing, easy-tear lines are prepared using a CO2 laser cutting machine. Step 5: The PEVA base layer is introduced into the coating production line, and the adhesive layer is applied to its non-slip surface using a comma-shaped scraper. It is then placed in an oven for segmented drying. Step 6: At the composite roller, bond the pretreated base paper to the PEVA base layer with the adhesive coating; Step 7: Place the laminated roll material in a curing chamber for curing; Step 8: Cut the product according to specifications using a slitting machine, and then seal it with polyethylene film.
[0010] Furthermore, in step two, the laser engraving machine is set to a power of 15-20W, a frequency of 30-50kHz, a micron-level protrusion height of 0.1-0.5mm, and a spacing of 0.5-2mm. In step two, the coating amount of the nano-coating liquid is set to 1-2g / m², the oven temperature is set to 80-100℃, and the curing time is set to 10-15 minutes. In step four, the mass ratio of the methyl silicone oil and fluorinated silicone oil mixture is set to 7:3-8:2, the coating amount is set to 0.5-1.0g / m², the curing temperature and viscosity are set to 120-140℃, and the time is set to 30-60 seconds.
[0011] Furthermore, in step five, the temperature of the first stage of the segmented drying is set to 60-70℃ for 1-2 minutes; the temperature of the second stage is set to 80-90℃ for 2-3 minutes; and the temperature of the third stage is set to 60-70℃ for 1-2 minutes. In step six, the composite pressure is set to 0.3-0.5 MPa, and the composite temperature is set to 40-50℃. In step seven, the curing temperature is set to 40-50℃, the relative humidity is set to ≤50%, and the curing time is set to 48-72 hours.
[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The PEVA base layer of the present invention contains ultra-high molecular weight polyethylene and nano-calcium carbonate. The long-chain structure of ultra-high molecular weight polyethylene can disperse frictional stress, and nano-calcium carbonate enhances intermolecular forces through interfacial effects, thus significantly improving the wear resistance of the base layer. 2. Terpene phenolic resin and silane coupling agent were added to the adhesive layer. The terpene phenolic resin and rosin glycerol ester form a high-low temperature complementary tackifying system. The silane coupling agent builds chemical bonds through the reaction of amino, carboxyl and hydroxyl groups, which improves the bonding strength in humid environments.
[0013] 3. The anti-slip surface layer adopts a design that combines a micron-level raised structure with a nanoparticle coating. The micron structure provides mechanical locking, while the nanoparticle coating increases surface roughness. The combination of the two improves the anti-slip performance compared to a single structure. 4. The synergistic effect of each layer of material allows the gel patch to adhere stably to sloping vertical tiles, and its high transparency does not affect the original aesthetics of the tiles. It is suitable for anti-slip treatment of sloping vertical tiles in various humid environments such as bathrooms and stairs. Detailed Implementation
[0014] The following detailed description of specific embodiments further illustrates the present invention. The embodiments of the present invention are given for illustrative and descriptive purposes only and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.
[0015] Example 1, Material Composition: PEVA base layer (parts by weight): High-density polyethylene: 55 parts, low-density polyethylene: 8 parts, ultra-high molecular weight polyethylene (molecular weight 2 million): 4 parts, nano-calcium carbonate (particle size 80nm, stearic acid treated): 3 parts, vinyl acetate: 25 parts, dioctyl terephthalate: 10 parts, epoxidized soybean oil: 4 parts, organotin heat stabilizer: 1.2 parts, antioxidant 1010: 0.4 parts, light stabilizer 622: 0.5 parts, color masterbatch: 0.3 parts Adhesive layer (parts by weight): Methyl methacrylate: 30 parts, butyl acrylate: 60 parts, acrylic acid: 6 parts, HDI trimer: 4 parts, fumed silica: 1.5 parts, initiator (AIBN): 0.3 parts, tackifying resin (rosin glycerol ester): 10 parts, terpene phenolic resin: 3 parts, silane coupling agent (KH-550): 0.8 parts Anti-slip surface: Micron-level protrusions: diamond-shaped, 0.3 mm high, 1 mm apart; Nano-coating: Silica particles (40nm in diameter), coating thickness 80nm; Base paper: Glassine paper: 70g / m²; Silicone oil coating: Methyl silicone oil: Fluorinated silicone oil = 7.5: 2.5, peel strength 30g / 25mm; Example 2, Material Composition: PEVA base layer (parts by weight): High-density polyethylene: 50 parts, low-density polyethylene: 10 parts, ultra-high molecular weight polyethylene (molecular weight 1.5 million): 3 parts, nano-calcium carbonate (particle size 50nm, stearic acid treated): 2 parts, vinyl acetate: 30 parts, dioctyl terephthalate: 8 parts, epoxidized soybean oil: 3 parts, organotin heat stabilizer: 0.8 parts, antioxidant 1010: 0.3 parts, light stabilizer 622: 0.3 parts, color masterbatch: 0.1 parts Adhesive layer (parts by weight): Methyl methacrylate: 25 parts, butyl acrylate: 65 parts, acrylic acid: 5 parts, HDI trimer: 3 parts, fumed silica: 1 part, initiator (AIBN): 0.2 parts, tackifying resin (rosin glycerol ester): 8 parts, terpene phenolic resin: 2 parts, silane coupling agent (KH-550): 0.5 parts Anti-slip surface: Micron-level protrusions: diamond-shaped, 0.3 mm high, 1 mm apart; Nano-coating: Silica particles (40nm in diameter), coating thickness 80nm; Base paper: Glassine paper: 70g / m²; Silicone oil coating: Methyl silicone oil: Fluorinated silicone oil = 7.5: 2.5, peel strength 30g / 25mm; Example 3, Material Composition: PEVA base layer (parts by weight): High-density polyethylene: 60 parts, low-density polyethylene: 5 parts, ultra-high molecular weight polyethylene (molecular weight 3 million): 5 parts, nano-calcium carbonate (particle size 100nm, stearic acid treated): 4 parts, vinyl acetate: 20 parts, dioctyl terephthalate: 12 parts, epoxidized soybean oil: 5 parts, organotin heat stabilizer: 1.8 parts, antioxidant 1010: 0.5 parts, light stabilizer 622: 0.6 parts, color masterbatch: 0.5 parts Adhesive layer (parts by weight): Methyl methacrylate: 35 parts, butyl acrylate: 55 parts, acrylic acid: 7 parts, HDI trimer: 5 parts, fumed silica: 2 parts, initiator (AIBN): 0.4 parts, tackifying resin (rosin glycerol ester): 12 parts, terpene phenolic resin: 4 parts, silane coupling agent (KH-550): 1 part Anti-slip surface: Micron-level protrusions: diamond-shaped, 0.3 mm high, 1 mm apart; Nano-coating: Silica particles (40nm in diameter), coating thickness 80nm; Base paper: Glassine paper: 70g / m²; Silicone oil coating: Methyl silicone oil: Fluorinated silicone oil = 7.5: 2.5, peel strength 30g / 25mm; Preparation process of Examples 1-3, PEVA base layer preparation: Drying temperature: 70℃, time: 3 hours; Nano calcium carbonate activation: speed: 900 r / min, time: 8 minutes; Extrusion temperature: feeding section 150℃, compression section 170℃, homogenization section 180℃, die head 190℃; Screw speed: 250 r / min; Vacuum degree: -0.07 MPa; Three-roll calendering: temperature 70℃, pressure 0.4 MPa; Plasma treatment: power 400W, time: 45 seconds, oxygen flow rate: 15 L / min. Anti-slip surface molding: Laser engraving: 18W power, 40kHz frequency; Nano coating curing: 90℃, 12 minutes. Preparation of adhesive layer: Pre-emulsification: 400 r / min, dropping time 35 minutes; polymerization reaction: initial temperature 72℃, holding temperature for 1.5 hours; heating to 82℃, reaction for 2.5 hours; functional additive addition: 250 r / min, stirring time 75 minutes; maturation conditions: 25℃, 24 hours. Composite process: Coating thickness: 0.1 mm, speed 15 m / min, drying conditions: 65℃ / 2 min → 85℃ / 2.5 min → 65℃ / 1.5 min, lamination pressure: 0.4 MPa, temperature 45℃, curing treatment: 45℃, 60 hours.
[0016] The performance test tables for Examples 1-3 are as follows: Based on the core performance data of the original Examples 1, 2, and 3, Example 3 is the optimal solution. It ranks first in key indicators such as wear resistance (0.39g / 1000 revolutions), slip resistance (wet friction coefficient 0.71), and adhesion durability (72 hours of adhesion on a 30° inclined surface and 48 hours of adhesion at 60°C). This is attributed to the wear-resistant skeleton constructed from 5 parts of ultra-high molecular weight polyethylene (3 million molecular weight) in its formula, and the strong cross-linking adhesive system formed by 5 parts of HDI trimer and 1.0 part of silane coupling agent. Although the light transmittance of 82% is slightly lower than other examples, it fully meets practical needs and has better performance stability, making it the most suitable for the application scenarios of inclined surface tiles.
[0017] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A gel-coated anti-slip treatment for ceramic tiles suitable for sloping surfaces, comprising a PEVA base layer, an anti-slip surface layer, an adhesive layer, and a backing paper, characterized in that: The PEVA base layer comprises 50-60 parts by weight of high-density polyethylene, 5-10 parts by weight of low-density polyethylene, 3-5 parts by weight of ultra-high molecular weight polyethylene, 2-4 parts by weight of nano-calcium carbonate, 20-30 parts by weight of vinyl acetate, 8-12 parts by weight of dioctyl terephthalate, 3-5 parts by weight of epoxidized soybean oil, 0.8-1.8 parts by weight of organotin heat stabilizer, 0.3-0.5 parts by weight of antioxidant, 0.3-0.6 parts by weight of light stabilizer, and 0.1-0.5 parts by weight of color masterbatch. The adhesive layer comprises 25-35 parts by weight of methyl methacrylate, 55-65 parts by weight of butyl acrylate, 5-7 parts by weight of acrylic acid, 3-5 parts by weight of HDI trimer, 1-2 parts by weight of fumed silica, 0.2-0.4 parts by weight of initiator, 8-12 parts by weight of tackifying resin, 2-4 parts by weight of terpene phenolic resin, and 0.5-1.0 parts by weight of silane coupling agent.
2. The anti-slip gel adhesive for ceramic tiles on sloping surfaces according to claim 1, comprising a PEVA base layer, an anti-slip surface layer, an adhesive layer, and a backing paper, characterized in that: The PEVA base layer comprises 55 parts by weight of high-density polyethylene, 7.5 parts by weight of low-density polyethylene, 4 parts by weight of ultra-high molecular weight polyethylene, 3 parts by weight of nano-calcium carbonate, 25 parts by weight of vinyl acetate, 10 parts by weight of dioctyl terephthalate, 4 parts by weight of epoxidized soybean oil, 1.3 parts by weight of organotin heat stabilizer, 0.4 parts by weight of antioxidant, 0.45 parts by weight of light stabilizer, and 0.3 parts by weight of color masterbatch. The adhesive layer comprises 30 parts by weight of methyl methacrylate, 60 parts by weight of butyl acrylate, 6 parts by weight of acrylic acid, 4 parts by weight of HDI trimer, 1.5 parts by weight of fumed silica, 0.3 parts by weight of initiator, 10 parts by weight of tackifying resin, 3 parts by weight of terpene phenolic resin, and 0.75 parts by weight of silane coupling agent.
3. The anti-slip gel adhesive for ceramic tiles on sloping surfaces according to claim 1, characterized in that, The method for preparing the PEVA base layer includes the following steps: S1: Dry high-density polyethylene, low-density polyethylene and ultra-high molecular weight polyethylene separately in an oven, add nano-calcium carbonate to a high-speed mixer, and spray with stearic acid for surface activation treatment. S2: Weigh out vinyl acetate, dioctyl terephthalate and epoxidized soybean oil by weight and add them to the mixing tank, then stir to form a plasticizer mixture; Add the pretreated polyethylene raw materials, nano calcium carbonate, organotin heat stabilizer, antioxidant, light stabilizer and color masterbatch to the plasticizer mixture in sequence, and stir until the materials are evenly mixed; S3: The mixture is fed into a twin-screw extruder, where the components are fully dispersed by melt shearing, and then extruded through a die to form a sheet. S4: The extruded sheet immediately enters the three-roll calender, where the surface of the sheet is smoothed by roller traction and calendering, and then cooled to room temperature in a cold water bath; S5: The surface of the cooled sheet is modified using plasma treatment equipment.
4. The anti-slip gel adhesive for ceramic tiles on sloping surfaces according to claim 3, characterized in that, The oven temperature in S1 is set to 60-80℃, and the drying time is set to 2-4 hours. The temperature in the mixing vessel in S2 is set to 50-60℃, the rotation speed is set to 300-500 r / min, and the stirring time is set to 10-15 minutes. The twin-screw extruder in S3 is set to extrusion with the following parameters: feeding section temperature 140-160℃, compression section temperature 160-180℃, homogenization section temperature 170-190℃, die head temperature 180-200℃, screw speed controlled at 200-300 r / min, and vacuum degree maintained at -0.06 to -0.08 MPa. The plasma treatment equipment in S5 has a processing power of 300-500W, a processing time of 30-60 seconds, an oxygen atmosphere, and a flow rate of 10-20 L / min.
5. The anti-slip gel adhesive for ceramic tiles on sloping surfaces according to claim 1, characterized in that, The method for preparing the adhesive layer includes the following steps: M1: Methyl methacrylate, butyl acrylate, and acrylic acid are filtered through a filter membrane respectively; The tackifying resin and terpene phenolic resin are preheated and softened in an oven; The silane coupling agent was diluted with deionized water and then hydrolyzed and activated by stirring. M2: Add deionized water and emulsifier to a reactor equipped with a stirrer, thermometer and reflux condenser, and stir until completely dissolved; The pretreated mixed monomers were slowly added dropwise, and stirring was continued after the addition was complete to form a stable pre-emulsion. M3: Heat the pre-emulsion to 70-75℃, add the initiator, and react under nitrogen protection. The appearance of blue light in the system indicates that the polymerization reaction has started. Continue heating to 80-85℃ for the reaction, adding 1 / 3 of the remaining initiator every 30 minutes during the process, until the monomers are fully polymerized; M4: Cool to 50-60℃, add HDI trimer and activated silane coupling agent, and stir to promote the cross-linking reaction; Add the preheated tackifying resin, terpene phenolic resin and fumed silica in sequence, and stir until completely dispersed; M5: Adjust the pH of the system with ammonia water, filter through a filter screen to remove undispersed particles and gel, and obtain a uniform adhesive layer solution; M6: The adhesive solution is stored in a sealed container and allowed to mature for 24 hours to allow the crosslinking reaction to proceed fully; Depending on the coating requirements, an appropriate amount of deionized water can be added to adjust the working viscosity.
6. The anti-slip gel adhesive for ceramic tiles on sloping surfaces according to claim 5, characterized in that, In M1, the oven temperature is set to 60-70℃, and the preheating time is set to 1-2 hours. In M1, the silane coupling agent is KH-550. In M2, the amount of deionized water is 60-80% of the total monomer mass. In M2, the emulsifier is sodium dodecyl sulfate. In M2, the dropping time is controlled at 30-40 minutes, and stirring is continued for 20-30 minutes after the dropping is completed. The emulsion particle size of the pre-emulsion in M2 is controlled at 100-200 nm. In M3, the initiator is azobisisobutyronitrile, and the nitrogen flow rate is set to 10-20 L / h. In M5, the pH value is adjusted to 6.5-7.5, and a 100-200 mesh filter is used.
7. A method for preparing a gel-coated anti-slip treatment for ceramic tiles suitable for sloping surfaces, characterized in that, Includes the following steps: Step 1: PEVA base layer, after melt blending and extrusion, cooling and shaping and plasma surface treatment, to obtain PEVA base layer roll material; Step 2: Anti-slip surface layer. The PEVA base layer roll is fed into a laser engraving machine to engrave a grid-like micron-level protrusion on the surface. Silica nanoparticles, silane coupling agent and deionized water were mixed in a 1:10 ratio and then ultrasonically dispersed. The nano-coating liquid is evenly coated onto the raised surface using a slot coater and cured in an oven to form a nano-anti-slip layer. Step 3: Adhesive layer, after pre-emulsification polymerization, addition of functional additives and curing, the adhesive layer solution is obtained; Step 4: Base paper pretreatment. Glassine paper is selected and coated with a mixture of methyl silicone oil and fluorinated silicone oil using a gravure coating machine. After coating and curing, easy-tear lines are prepared using a CO2 laser cutting machine. Step 5: The PEVA base layer is introduced into the coating production line, and the adhesive layer is applied to its non-slip surface using a comma-shaped scraper. It is then placed in an oven for segmented drying. Step 6: At the composite roller, bond the pretreated base paper to the PEVA base layer with the adhesive coating; Step 7: Place the laminated roll material in a curing chamber for curing; Step 8: Cut the product according to specifications using a slitting machine, and then seal it with polyethylene film.
8. The anti-slip gel adhesive for ceramic tiles on sloping surfaces according to claim 7, characterized in that, In step two, the laser engraving machine is set to a power of 15-20W, a frequency of 30-50kHz, a micron-level protrusion height of 0.1-0.5mm, and a spacing of 0.5-2mm. In step two, the nano-coating liquid coating amount is set to 1-2g / m², the oven temperature is set to 80-100℃, and the curing time is set to 10-15 minutes. In step four, the mass ratio of the methyl silicone oil and fluorinated silicone oil mixture is set to 7:3-8:2, the coating amount is set to 0.5-1.0g / m², the curing temperature viscosity is set to 120-140℃, and the time is set to 30-60 seconds.
9. A gel-applied anti-slip treatment for ceramic tiles on sloping surfaces according to claim 7, characterized in that, In step five, the temperature of the first stage of the segmented drying is set to 60-70℃ and the time is set to 1-2 minutes; the temperature of the second stage is set to 80-90℃ and the time is set to 2-3 minutes; and the temperature of the third stage is set to 60-70℃ and the time is set to 1-2 minutes. In step six, the composite pressure is set to 0.3-0.5MPa and the composite temperature is set to 40-50℃. In step seven, the curing temperature is set to 40-50℃, the relative humidity is set to ≤50%, and the curing time is set to 48-72 hours.