Environment-friendly kitchen and bath plugging agent

Abstract

The invention relates to the technical field of building waterproof materials, in particular to an environment-friendly kitchen and bath plugging agent which comprises the following three components: a component A consisting of a lithium silicate solution, nano silicon dioxide particles, a plant source natural chelating agent, a hydrophilic inorganic dispersant and a stabilizer; the component B is prepared from calcium hydroxide, water, copper sulfate, magnesium sulfate, a plant surfactant and a retarder; the component C is prepared from a cellulose-derived plant polymer, a modified starch-based biopolymer, a natural pH indicator and inorganic reinforced fibers. According to the invention, a full-inorganic environment-friendly formula is adopted, the VOC content is lower than 0.1 g / L, harmful substances such as isocyanate and epoxy resin are not contained, the strictest environment-friendly standard is met, the coating can be safely used in various indoor environments, especially living spaces of sensitive people such as children and old people, and the technical contradiction that rigidity and elasticity cannot be achieved at the same time is creatively solved by a three-component cooperative working mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of building waterproof materials, and particularly to an environmentally friendly kitchen and bathroom leak stopper. Background Art

[0002] With the development of modern building decoration industry and the improvement of people's living standards, the kitchen and bathroom spaces have become the areas with the highest usage frequency and the most stringent waterproof requirements in modern homes. According to the data of the China National Building Waterproof Association, the leakage problems in kitchens and bathrooms rank first among the complaints after home decoration, accounting for about 38.7% of the total complaint volume. Waterproof problems not only affect the living quality but also may lead to damage to building structures, deterioration of decoration materials, and even cause neighborhood disputes and legal lawsuits.

[0003] Currently, the kitchen and bathroom waterproofing and leak-stopping technologies are mainly divided into the following categories: Traditional cement-based waterproof materials Traditional cement-based waterproof materials mainly include rigid waterproof layers and flexible waterproof layers. The rigid waterproof layer is usually composed of cement, quartz sand and special additives, which has certain waterproof performance, but is easy to crack and has poor deformation adaptability. The flexible waterproof layer adds polymer modification components, improving the deformation adaptability, but has insufficient durability, and the construction process is complex and needs to be completed before tiling. Such materials cannot be used for the leakage repair of the already laid tiles and cannot meet the leak-stopping requirements without damaging the decoration.

[0004] Organic solvent-based waterproof materials Organic solvent-based waterproof materials include polyurethane waterproof coatings, acrylate waterproof coatings, epoxy resin waterproof coatings, etc. Such materials have good waterproof performance and elasticity, but generally contain a large amount of volatile organic compounds (VOCs), such as harmful substances like toluene and xylene. According to the requirements of the "Indoor Air Quality Standard" (GB / T 18883-2002), the use of such materials indoors will cause air pollution and pose a potential threat to human health, especially to sensitive groups such as the elderly, pregnant women and children. At the same time, such materials usually need to form a continuous film on the surface of the base layer to play the waterproof role and are not suitable for the leakage repair of the already laid tiles either.

[0005] Penetrating crystalline waterproof materials Penetrating crystalline waterproof materials are a new type of waterproof materials developed in recent years. They mainly penetrate into the pores of the base material through active chemical components and react with calcium ions in the cement-based material to form insoluble crystals, thereby plugging the pores and micro-cracks. Such materials have good environmental protection, but the traditional penetrating crystalline materials have the following problems: Limited penetration depth: The particle diameters of the active components of most products are in the range of 1-5μm, and it is difficult to penetrate into smaller pores (0.1-1μm), so the waterproof effect is not complete.

[0006] Slow crystallization rate: It generally takes 7 - 14 days to form an effective waterproof barrier, and it cannot quickly solve the problem of emergency leakage.

[0007] Lack of elasticity: The crystals are usually relatively rigid and prone to cracking when the building undergoes slight deformation, resulting in a gradual decline in the waterproof effect.

[0008] Limited applicability: It has poor effects in high - alkaline or low - calcium environments, and its application range is limited.

[0009] Injection - type waterproof materials Injection - type waterproof materials include polyurethane grouting materials, epoxy resin grouting materials, acrylate grouting materials, etc. Although these materials can be used for the leakage repair of paved tiles, they have the following problems: Outstanding environmental protection issues: Most products contain harmful substances such as isocyanates and epoxy resin curing agents, and indoor use will pose risks to health. According to the evaluation of "Limit of Radionuclides in Building Materials" (GB6566 - 2010), most products do not meet the Class A standard.

[0010] Insufficient adhesion: The adhesion to cement - based materials mainly relies on physical adsorption, and interface peeling is likely to occur after long - term use.

[0011] Poor durability: It is easy to age and degrade when exposed to ultraviolet rays, ozone or humid and hot environments, and the waterproof life is generally only 3 - 5 years.

[0012] Difficult to control construction quality: During the grouting process, it is impossible to visually judge the penetration range and density, which is likely to cause incomplete waterproofing.

[0013] Analysis of similar products in the market Common kitchen and bathroom leak - plugging products in the current market, such as "tile - free repair", "tempered film", "acrylate grouting material", etc., although they solve the leak - plugging needs without damaging the decoration to a certain extent, all have serious defects: "Tile - free repair" products: The main components are epoxy resin and polyisocyanate, and the VOC content is as high as 180 - 300 g / L, far exceeding the indoor environmental protection standard limit (≤50 g / L), and harmful substances such as formaldehyde will be released during the reaction process.

[0014] "Tempered film" products: The main component is organosilane, and a large amount of organic solvents are added as diluents. They not only have poor environmental protection, but also have problems such as insufficient penetration depth and short waterproof life.

[0015] Acrylate grouting material: It contains a large amount of acrylate monomers and organic solvents, the smell is irritating during the construction process, and it is prone to hydrolysis when exposed to a humid environment for a long time, resulting in a gradual decline in the waterproof effect.

[0016] According to the test data of the China Academy of Building Research, the average service life of the above products is only 2 - 4 years, far lower than the 10 - 15 years expected by the owners. At the same time, these products perform poorly in resisting microbial erosion and are prone to mold growth in high - humidity environments, leading to secondary pollution and health risks.

[0017] Industry development needs With the popularization of the concepts of green buildings and healthy homes, the development trend of building waterproof materials is mainly reflected in the following aspects: Environmentally friendly and harmless: Meeting the increasingly strict environmental protection regulations and standards, free of VOC and other harmful substances.

[0018] Performance improvement: Significantly improved in terms of waterproof effect, durability, adaptability, etc.

[0019] Convenient construction: Can carry out waterproof treatment without damaging the existing decoration.

[0020] Intelligent: Can provide visual judgment of construction quality and self - repair function.

[0021] Multi - functional: In addition to waterproofing, it also has additional functions such as antibacterial and anti - aging.

[0022] Currently, there is no kitchen and bathroom leak - plugging product on the market that can meet the above requirements at the same time. There is an urgent need to develop a new type of kitchen and bathroom leak - plugging agent that is environmentally friendly, efficient, easy to operate, and has excellent performance to solve the deficiencies of the existing technology and meet the actual needs of the market and users. Summary of the invention

[0023] The purpose of the present invention is to provide a completely environmentally friendly kitchen and bathroom leak - plugging agent without VOC emissions, with nano - penetration ability and self - repair function, which can achieve a complete waterproof effect without removing the tiles.

[0024] The present invention adopts a three - component synergistic action system. Through precise formula design and innovative construction technology, it realizes efficient penetration and sealing of the sand - lime layer under the tiles in the kitchen and bathroom space, and at the same time has multiple functions such as continuous crystallization, self - repair of micro - cracks, and inhibition of microbial growth.

[0025] A nano - penetration type environmentally friendly kitchen and bathroom leak - plugging agent, comprising the following three components: Component A: Composed of lithium silicate solution, nano - silica particles, plant - derived natural chelating agent, hydrophilic inorganic dispersant, and stabilizer; Component B: Composed of calcium hydroxide, water, copper sulfate, magnesium sulfate, vegetable - based surfactant, and retarder; Component C: Composed of cellulose - derived vegetable polymer, modified starch - based biopolymer, natural pH indicator, and inorganic reinforcing fiber.

[0026] Furthermore, the composition of Component A is as follows: Lithium silicate solution, Baume degree 45 ± 1, modulus 3.2 ± 0.1, accounting for 94 - 96%; Nano-silica particles, particle size 15 - 30 nm, accounting for 2 - 3%; Plant-derived natural chelating agent, accounting for 0.5 - 1%; Hydrophilic inorganic dispersant, accounting for 0.5 - 1%; Stabilizer, accounting for 0.3 - 0.5%.

[0027] Furthermore, the composition of Component B is as follows: Calcium hydroxide 25 kg; Purified water 45 kg; Copper sulfate 200 - 250 g; Magnesium sulfate 100 - 150 g; Plant-based surfactant 50 g; Retarder 75 g.

[0028] Furthermore, the composition of Component C is as follows: Cellulose-derived plant polymer, accounting for 72 - 75%; Modified starch-based biopolymer, accounting for 19 - 22%; Natural pH indicator, accounting for 3 - 5%; Inorganic reinforcing fiber, length 0.5 - 1 mm, accounting for 2 - 3%.

[0029] Preparation method of nano-permeable environmental protection kitchen and bathroom leak stopper, comprising the following steps: S1. Prepare Component A: Add nano-silica particles, plant-derived natural chelating agent, hydrophilic inorganic dispersant and stabilizer to the lithium silicate solution in sequence under stirring, stir evenly and then stand for filtration; S2. Prepare Component B: Add calcium hydroxide to water and stir to disperse, then add copper sulfate solution, magnesium sulfate solution, plant-based surfactant and retarder in sequence, stir evenly and then stand, take the supernatant; S3. Prepare Component C: Mix and dissolve the cellulose-derived plant polymer and the modified starch-based biopolymer, add the pH indicator and inorganic reinforcing fiber, stir evenly and then stand.

[0030] Usage method of nano-permeable environmental protection kitchen and bathroom leak stopper, comprising the following steps: S1. Dilute Component A with water at a ratio of 1:1 or 1:0.8 before use; S2. Dilute Component B with water at a ratio of 1:1 or 1:0.8 before use; S3. Add Component C to Component A at 3 - 4% of the volume of the diluted solution of Component A and mix evenly; S4. Use a two-component pressure-adjustable grouting machine to simultaneously inject the A + C component mixture and the B component into the mortar layer under the tiles at a volume ratio of 1:1. S5. The spacing between grouting points is 15 - 30 cm, and the grouting pressure is 0.3 - 0.5 MPa. S6. Judge the reaction progress by the color change of the pH indicator in the C component.

[0031] Furthermore, the working principle of the leak stopper is as follows: Nano-silica particles penetrate into micro-pores; lithium silicate in the A component reacts with calcium hydroxide in the B component to form insoluble calcium silicate hydrate and lithium calcium silicate composite crystals; copper sulfate acts as a catalyst to promote crystallization and enhance the strength of the crystals; the vegetable polymer in the C component provides a micro-elastic network; the unreacted active ingredients are activated and filled when micro-cracks form; magnesium sulfate provides the function of inhibiting microbial growth.

[0032] Furthermore, the technical indicators of the leak stopper are as follows: Penetration depth: 8.5 - 12.5 mm; Compressive strength: 35 - 40 MPa; Tensile strength: 1.0 - 1.3 MPa; Elastic modulus: 0.5 - 1.0 MPa; Waterproof performance under 0.3 MPa water pressure: no leakage for 72 - 120 hours; VOC content: <0.1 g / L; Anti-microbial inhibition rate: >90%.

[0033] Furthermore, the leak stopper is applied to the waterproof reinforcement of the tile layers on the kitchen walls, kitchen floors, bathroom walls, bathroom floors, balconies, and terraces, as well as the repair of the waterproof layer under indoor and outdoor decorative tiles; the applicable temperature range of the leak stopper is -20°C to 80°C.

[0034] Advantages of the present invention: In terms of environmental protection and health, the present invention adopts a fully inorganic environmental protection formula, with a VOC content lower than 0.1 g / L, and does not contain harmful substances such as isocyanates and epoxy resins, meeting the strictest environmental protection standards, and can be safely used in various indoor environments, especially the living spaces of sensitive populations such as children and the elderly.

[0035] In terms of technical performance, the introduction of nano-silica enables the penetration depth to reach 9.5 - 12.5 mm, far exceeding the 3 - 5 mm of traditional products; the three-component collaborative working mechanism creatively solves the technical contradiction of "rigidity and elasticity cannot coexist"; the continuous crystallization mechanism makes the waterproof effect enhance over time, and the crystal density increases from 1.85 - 1.90 g / cm³ in the initial stage to 2.15 - 2.20 g / cm³ after 28 days; the added magnesium sulfate provides a bacteriostatic rate of over 90%, effectively preventing mildew.

[0036] In terms of application convenience, the two-component grouting technology realizes waterproof repair without removing tiles, reducing the decoration restoration cost by more than 90%; the pH indicator, as a visual guidance system, intuitively reflects the construction quality through color change; it has a wide applicable temperature range (-20°C to 80°C) and good adaptability to various substrates.

[0037] In terms of economic and social benefits, the present invention reduces the waterproof repair cost from the traditional 500 - 800 yuan per square meter to 150 - 200 yuan per square meter, saving more than 70%; the service life is extended from 2 - 3 years of traditional products to more than 10 years; it meets the green building evaluation standard, helping to enhance the building value; after popularization and application, it is expected to significantly reduce the annual economic loss of 200 billion yuan caused by building leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0039] Figure 1 It is a schematic diagram of the composition of three groups of formulas and the preparation process of the embodiments of the present invention; Figure 2 It is a schematic diagram of the reaction mechanism of the plugging agent in the embodiments of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0040] The present invention will be described in detail below in conjunction with the drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the drawing part is only for more specific description of the embodiments, and is not intended to specifically limit the present invention.

[0041] It should be noted that in the specification, references to "one embodiment", "an embodiment", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes that particular feature, structure, or characteristic. Additionally, when a particular feature, structure, or characteristic is described in connection with an embodiment, implementing such feature, structure, or characteristic in connection with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0042] Generally, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood to not necessarily be intended to convey a set of exclusive factors, but rather, depending at least in part on the context, can alternatively allow for the existence of other factors that are not necessarily explicitly described.

[0043] Refer to Figures 1 to 2 I. Raw Material Composition The environment-friendly kitchen and bathroom leak stopper of the present invention is composed of three components: A, B, and C: Component A (modified lithium silicate solution) Lithium silicate solution: Baumé 45 ± 1, modulus 3.2 ± 0.1, proportion 94 - 96% Nano-silica particles: particle size 15 - 30 nm, proportion 2 - 3% Plant-derived natural chelating agent (citric acid derivative): proportion 0.5 - 1% Hydrophilic inorganic dispersant: proportion 0.5 - 1% Stabilizer (hydroxypropyl methylcellulose): proportion 0.3 - 0.5% Component B (modified calcium hydroxide solution) Calcium hydroxide: 25 kg Purified water: 45 kg Copper sulfate: 250 g Magnesium sulfate: 100 g Plant-based surfactant: 50 g Retarder (sodium gluconate): 75 g Component C (elastic enhancer) Cellulose-derived plant polymer: proportion 72 - 75% Modified starch-based biopolymer: proportion 20 - 22% Natural pH indicator (red cabbage extract): proportion 3 - 5% Inorganic reinforcing fiber (glass fiber, length 0.5 - 1 mm): proportion 2 - 3% II. Preparation Method Preparation Method of Component A: Add lithium silicate solution (Baumé 45, modulus 3.2) into a stainless steel reactor.

[0044] Gradually add nano-silica particles under stirring (rotation speed 200 - 300 rpm), and stir for 30 minutes.

[0045] Add plant-derived natural chelating agent, and continue stirring for 15 minutes.

[0046] Add hydrophilic inorganic dispersant, and stir for 10 minutes.

[0047] Finally, add stabilizer and stir until completely homogeneous, about 20 minutes.

[0048] Let it stand for 24 hours, then filter and store in a sealed container for standby.

[0049] Preparation Method of Component B: Add 45 kg of pure water into a large container.

[0050] Slowly add 25 kg of calcium hydroxide and stir until completely dispersed.

[0051] Dissolve 250 g of copper sulfate in 3 kg of warm water (50 - 60 °C), then slowly add it into the calcium hydroxide suspension and stir for 30 minutes.

[0052] Dissolve 100 g of magnesium sulfate in 1 kg of water, add it into the above mixture and stir for 15 minutes.

[0053] Add vegetable surfactant and retarder, and stir until completely homogeneous.

[0054] Let it stand for 48 hours, and the supernatant is Component B.

[0055] Preparation Method of Component C: Mix cellulose-derived vegetable polymer and modified starch-based biopolymer in proportion.

[0056] Add appropriate amount of water (3 times the total weight of the polymer), and stir at 60 - 70 °C until completely dissolved.

[0057] Cool down to room temperature, add pH indicator solution and mix well.

[0058] Add inorganic reinforcing fibers and stir at low speed until evenly dispersed.

[0059] Let it stand for 12 hours, and after forming a homogeneous colloid, store it in a sealed container for standby.

[0060] III. Usage Method Component A should be diluted with clean water at a ratio of 1:1 before use.

[0061] Component B should be diluted with clean water at a ratio of 1:1 before use.

[0062] Before use, Component C should be added to Component A at 3% of the volume of the dilution of Component A and mixed thoroughly.

[0063] Using a two-component pressure-adjustable grouting machine, inject the treated Component A + C and Component B into the mortar layer under the tiles at a volume ratio of 1:1 simultaneously.

[0064] The grouting pressure should be adjusted according to the actual situation, generally controlled at 0.3 - 0.5 MPa.

[0065] The spacing between grouting points is usually 20 - 30 cm, and can be adjusted according to the water leakage situation specifically.

[0066] After grouting, observe the color change of the pH indicator in Component C: turning from purple to blue-green indicates that the reaction is in progress, and turning to light yellow indicates that the reaction is basically completed.

[0067] The waterproof test can be carried out 24 hours after grouting.

[0068] IV. Working Principle The working principle of the leak stopper of the present invention is based on the following technical mechanisms: Penetration mechanism: Nano-scale silica particles (15 - 30 nm) can penetrate into the microscopic pores (generally 0.1 - 10 μm) of the mortar layer under the tiles to form a deep waterproof barrier.

[0069] Chemical reaction: Lithium silicate in Component A reacts with calcium hydroxide in Component B to form insoluble calcium silicate hydrate and lithium calcium silicate composite crystals, and these crystals fill the pores and form chemical bonding with the substrate. The main reaction equation is: Li2SiO3 + Ca(OH)2 → CaSiO3·nH2O + 2LiOH Catalytic enhancement: Copper sulfate acts as a catalyst to promote the crystallization process and enhance the strength and stability of the crystals. A small amount of copper ions participate in the reaction to form copper silicate complexes, further enhancing the waterproof effect.

[0070] Continuous crystallization: After the initial crystallization is formed, the crystallization process will continue for several weeks, making the waterproof effect enhance over time.

[0071] Elastic mechanism: The vegetable polymer in Component C provides a micro-elastic network, which can adapt to the slight deformation of building materials without cracking.

[0072] Self-healing function: When micro-cracks are formed, the unreacted active ingredients will be activated and fill the newly formed gaps.

[0073] Antimicrobial effect: Magnesium sulfate provides the function of inhibiting the growth of microorganisms, preventing mold and bacteria from multiplying in a humid environment.

[0074] V. Examples Example 1: Application of the standard formula to the leakage of kitchen tile walls Raw material preparation: Component A: 94.5% lithium silicate solution (Baumé 45, modulus 3.2), 2.5% nano-silica (20nm), 0.8% citrate chelating agent, 0.8% inorganic dispersant, 0.4% hydroxypropyl methylcellulose.

[0075] Component B: Prepare a mixed solution of calcium hydroxide, copper sulfate, and magnesium sulfate according to the above ratio.

[0076] Component C: 74% hydroxyethyl cellulose, 21% modified starch polymer, 3% purple cabbage extract, 2% glass fiber.

[0077] Application process: Determine the leakage area of the kitchen wall. Drill holes at the tile joints within the leakage area and within 30 cm around it, with a hole diameter of 4 mm and a spacing of 25 cm.

[0078] Dilute components A and B according to the specified ratio, and add 3% of component C to component A.

[0079] Use a double-fluid grouting machine, set the pressure to 0.4 MPa, and start grouting.

[0080] Observe whether there is liquid overflow from the joints during the grouting process. When overflow occurs, pause grouting and move to the next grouting point.

[0081] After all grouting points are completed, seal the drill holes with cement-based materials.

[0082] Conduct a water spray test after 24 hours to confirm that the leakage has been completely resolved.

[0083] Result: The treated area achieved complete waterproofing, with no leakage phenomenon after continuous water spraying for 24 hours. After reinspection 3 months later, the waterproof effect remained stable.

[0084] Example 2: Application in a high-humidity environment (leakage of bathroom floor) Raw material adjustment: Component A: Basically the same as in Example 1, but increase the nano-silica content to 3% and increase the chelating agent to 1%.

[0085] Component B: Increase the magnesium sulfate content to 150 grams, and keep the others unchanged.

[0086] Component C: Increase the inorganic reinforcing fiber to 3% and reduce the starch polymer to 20%.

[0087] Application process: Drill holes in the gaps between the bathroom floor tiles with a hole diameter of 4 mm and a spacing of 20 cm to form a grid layout.

[0088] Adjust the dilution ratio to: the ratio of component A to water is 1:0.8, and the ratio of component B to water is 1:0.8 to increase the concentration.

[0089] Increase the addition amount of component C to 4% of the diluted solution of component A.

[0090] Adjust the grouting pressure to 0.35 MPa and control the speed at 30 - 40 seconds for each point.

[0091] After the grouting is completed, seal the drill holes with epoxy mortar.

[0092] Conduct a water storage test after 48 hours with a water depth of 3 cm for 72 hours.

[0093] Result: The treated bathroom floor is completely waterproof, and there is no trace of moisture in the lower layer after 72 hours of water storage. After reinspection 6 months later, it still maintains excellent waterproof performance in a high - humidity environment and there is no mold growth.

[0094] Example 3: Waterproof treatment of external balcony tiles (environment with large temperature changes) Raw material adjustment: Component A: Increase the modulus of the lithium silicate solution to 3.3, and keep the others unchanged.

[0095] Component B: Standard formula.

[0096] Component C: Increase the cellulose derivative to 75%, reduce the modified starch to 19%, and increase the glass fiber to 3%.

[0097] Application process: Arrange grouting points on the balcony tile surface at a spacing of 15 cm, and ensure that the drilling depth reaches the sand - mortar layer.

[0098] Components A and B are diluted conventionally, and the addition amount of component C is 3.5%.

[0099] Set the grouting pressure to 0.45 MPa to ensure sufficient penetration.

[0100] After the grouting is completed, seal the drill holes with high - elasticity waterproof cement.

[0101] Conduct a cyclic temperature shock test: cycle 5 times from - 10°C to 60°C, with each cycle lasting 8 hours.

[0102] Result: No cracks are generated on the treated balcony after the temperature cycle test, and the waterproof performance remains intact. After reinspection one year later, after experiencing seasonal temperature changes, the waterproof effect shows no obvious attenuation.

[0103] Table 1: Performance Test Results of Different Formulation Combinations Table 2: Performance Comparison with Similar Products in the Market Table 3: Detailed Performance Test Data of Examples 1 - 3 Table 4: Durability Test Data (Sample of Example 2) Table 5: Environmental Adaptability Test Data Table 6: Test Data of Adaptability to Different Substrates The present invention is applicable to the following application scenarios: Repair of leakage in kitchen wall and floor tiles Waterproof treatment of bathroom walls and floors Waterproof reinforcement of balcony and terrace tile layers Repair of waterproof layer under indoor and outdoor decorative facing bricks Waterproof renovation of kitchen and bathroom spaces in existing buildings.

[0104] Precautions Before use, each component should be shaken well to ensure uniform dispersion of the components.

[0105] The dilution water for components A and B should be clean tap water or pure water.

[0106] After use, the grouting equipment should be immediately rinsed clean with water.

[0107] The construction temperature range is 5 - 35°C. Too low temperature may affect the reaction speed.

[0108] During construction, safety goggles and gloves should be worn to avoid liquid contact with skin and eyes.

[0109] The mixed solution prepared at one time should be used up within 2 hours. Its performance will decline after expiration.

[0110] Drilling should avoid hidden works such as water pipes and electric wires. It is recommended to use a pipeline detector to confirm the position.

[0111] Through the innovative three-component design and nano-level penetration technology, the present invention provides an environmentally friendly and efficient solution for waterproofing and plugging in kitchen and bathroom spaces, which not only meets the environmental requirements but also has excellent waterproof performance and durability, representing a major progress in kitchen and bathroom waterproofing technology.

[0112] The present invention encompasses any alternatives, modifications, equivalent methods, and solutions that fall within the spirit and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0113] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A nano-permeable environmental protection kitchen and bathroom leak stopper, characterized in that, It includes the following three components: Component A: It is composed of lithium silicate solution, nano-silica particles, plant-derived natural chelating agent, hydrophilic inorganic dispersant and stabilizer; Component B: It is composed of calcium hydroxide, water, copper sulfate, magnesium sulfate, plant-based surfactant and retarder; Component C: It is composed of cellulose-derived plant polymer, modified starch-based biopolymer, natural pH indicator and inorganic reinforcing fiber.

2. The nano-permeable environmental protection kitchen and bathroom leak stopper according to claim 1, characterized in that, The composition of Component A is as follows: Lithium silicate solution, Baume degree 45±1, modulus 3.2±0.1, proportion 94-96%; Nano-silica particles, particle size 15-30nm, proportion 2-3%; Plant-derived natural chelating agent, proportion 0.5-1%; Hydrophilic inorganic dispersant, proportion 0.5-1%; Stabilizer, proportion 0.3-0.5%.

3. The nano-permeable environmental protection kitchen and bathroom leak stopper according to claim 1, characterized in that, The composition of Component B is as follows: Calcium hydroxide 25 kg; Purified water 45 kg; Copper sulfate 200-250 g; Magnesium sulfate 100-150 g; Plant-based surfactant 50 g; Retarder 75 g.

4. The nano-permeable environmental protection kitchen and bathroom leak stopper according to claim 1, characterized in that, The composition of Component C is as follows: Cellulose-derived plant polymer, proportion 72-75%; Modified starch-based biopolymer, proportion 19-22%; Natural pH indicator, proportion 3-5%; Inorganic reinforcing fiber, length 0.5-1 mm, proportion 2-3%.

5. The preparation method of the nano-permeable environmental protection kitchen and bathroom leak stopper according to claim 1, characterized in that, It includes the following steps: S1. Prepare Component A: Add nano-silica particles, plant-derived natural chelating agent, hydrophilic inorganic dispersant and stabilizer to the lithium silicate solution in sequence under stirring, stir evenly and then stand for filtration; S2. Prepare Component B: Add calcium hydroxide to water and stir to disperse, add copper sulfate solution, magnesium sulfate solution, plant-based surfactant and retarder in sequence, stir evenly and then stand, take the supernatant; S3. Prepare Component C: Mix and dissolve the cellulose-derived plant polymer and the modified starch-based biopolymer, add the pH indicator and inorganic reinforcing fiber, stir evenly and then stand.

6. A method for using the nano-permeable environmental protection kitchen and bathroom leak stopper according to any one of claims 1-4, characterized in that, It includes the following steps: S1. Dilute Component A with clear water at a ratio of 1:1 or 1:0.8 before use; S2. Dilute Component B with clear water at a ratio of 1:1 or 1:0.8 before use; S3. Add Component C to Component A at 3-4% of the volume of the diluted solution of Component A and mix evenly; S4. Use a two-component pressure-adjustable grouting machine to inject the mixture of Component A + Component C and Component B into the mortar layer under the tiles at a volume ratio of 1:1 simultaneously; S5. The spacing between grouting points is 15-30 cm, and the grouting pressure is 0.3-0.5 MPa; S6. Judge the reaction progress through the color change of the pH indicator in Component C.

7. The nano-permeable environmental protection kitchen and bathroom leak stopper according to claim 1, characterized in that, The working principle of the leak stopper is as follows: Nano-silica particles penetrate into the micro-pores; lithium silicate in Component A reacts with calcium hydroxide in Component B to form insoluble calcium silicate hydrate and calcium lithium silicate composite crystals; copper sulfate acts as a catalyst to promote crystallization and enhance the strength of the crystals; the plant polymer in Component C provides a micro-elastic network; the unreacted active ingredients are activated and filled when micro-cracks are formed; magnesium sulfate provides the function of inhibiting microbial growth.

8. The nano-permeable environmental protection kitchen and bathroom leak stopper according to claim 1, characterized in that, The technical indicators of the leak stopper are as follows: Penetration depth: 8.5-12.5 mm; Compressive strength: 35 - 40 MPa; Tensile strength: 1.0 - 1.3 MPa; Elastic modulus: 0.5 - 1.0 MPa; Waterproof performance under 0.3 MPa water pressure: no leakage for 72 - 120 hours; VOC content: < 0.1 g / L; Antimicrobial inhibition rate: > 90%.

9. The nano-permeable environmental protection kitchen and bathroom leak stopper according to claim 1, wherein, The plugging agent is applied to the waterproof reinforcement of the tile layers on the kitchen wall, kitchen floor, bathroom wall, bathroom floor, balcony, and terrace, as well as the repair of the waterproof layer under the interior and exterior decorative tiles; the applicable temperature range of the plugging agent is -20°C to 80°C.

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