A seamless waterproof construction method for kitchen and bathroom based on coating and material combination

By laying anti-corrosion and waterproof membranes and wear-resistant waterproof coatings on the floors, walls, and ceilings of kitchens and bathrooms, combined with slope and inclined design, the problem of water seepage during waterproofing construction in kitchens and bathrooms was solved, achieving a seamless waterproofing effect and improving waterproofing quality and durability.

CN116950402BActive Publication Date: 2026-05-01CCCC FOURTH HIGHWAY ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CCCC FOURTH HIGHWAY ENG CO LTD
Filing Date
2023-05-26
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In existing technologies, waterproofing construction in kitchens and bathrooms mainly focuses on the floor, while neglecting the waterproofing of walls and ceilings, leading to problems such as water seepage and dampness, which affects the quality of home renovation and causes economic losses.

Method used

The construction method combines coatings and materials, including laying anti-corrosion and waterproof membranes, self-adhesive polymer-modified bitumen waterproof membranes, wear-resistant waterproof coatings, and seamless waterproof coatings on the floors, walls, and ceilings of kitchens and bathrooms. By creating slopes and setting inclined or spherical protrusions, water can be ensured to flow away quickly.

Benefits of technology

It effectively prevents water penetration, reduces dampness on walls and ceilings, improves waterproofing, extends the service life of waterproof membranes and coatings, and avoids problems such as leakage and mold after decoration.

✦ Generated by Eureka AI based on patent content.
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Abstract

The application discloses the kitchen and bathroom waterproof technology field, concretely is a kind of seamless waterproof construction method based on coating and material combination between kitchen and bathroom, including specific steps as follows: when carrying out floor waterproof construction, floor must be pitched to the direction of floor drain and must be pitched before brushing waterproof coating, also guarantee that the elevation of its floor is 2cm-3cm lower than the elevation of adjacent indoor floor, to prevent water backflow to the outside of kitchen and bathroom, the drainage slope of its floor drain edge outward 5cm should be 3%-4%, when construction, floor drain is center to radiation in all directions, find slope, scrape with scraping ruler, and surface is required to be smooth, no depression, to not accumulate water, and position is far from doorway, to ensure that doorway is highest point after pitching, the application carries out waterproof construction on the wall surface and top surface between kitchen and bathroom, then water penetration into wall surface and top surface can be avoided, so that wall surface and top surface can be avoided to be damp, mildew and other phenomena.
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Description

A seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials. Technical Field

[0001] This invention relates to the field of kitchen and bathroom waterproofing technology, specifically a seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials. Background Technology

[0002] Statistics show that the leakage rate of buildings in my country reaches 48.5%, with kitchens and bathrooms being the most problematic areas. Generally, in newly delivered buildings, the developers have already applied waterproofing layers to the bathroom and kitchen floors according to certain requirements (although many new buildings lack this waterproofing in their kitchens). As long as the original waterproofing layer is not damaged, leaks should not occur after renovation. However, in actual home renovations, some kitchen and bathroom facilities and equipment are added or moved, such as rearranging plumbing, modifying kitchen and bathroom walls, or backfilling the waterproofing layer in sunken bathrooms. All of these can easily damage the original building's waterproofing structure. In such cases, if waterproofing is not redone, problems such as leakage, dampness, odor, and rot are likely to occur after renovation, damaging neighborly relations and causing unnecessary economic losses to the family. Therefore, strengthening waterproofing in kitchens and bathrooms is imperative.

[0003] However, current construction processes for kitchens and bathrooms primarily focus on waterproofing the floor, neglecting the walls and ceiling. When people shower, water splashes onto the walls, leading to water seepage over time. Simultaneously, moisture rises to the ceiling and adheres, causing further seepage. Furthermore, since kitchens and bathrooms above are located vertically, water seepage from the upper floors can also penetrate the ceiling. Therefore, this paper proposes a seamless waterproofing construction method for kitchens and bathrooms based on a combination of coatings and materials. Summary of the Invention

[0004] In view of the problems existing in the above and / or existing seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, which can solve the aforementioned existing problems.

[0006] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials includes the following specific steps:

[0008] Step 1, Waterproofing the Kitchen and Bathroom Floors: When waterproofing the floor, the floor must slope towards the drain and this sloping must be done before applying the waterproof coating. The slope should be 1%-2%, and the floor elevation should be 2cm-3cm lower than the adjacent indoor floor elevation to prevent water from flowing back into the kitchen and bathroom. The drainage slope 5cm outward from the drain edge should be 3%-4%. During construction, the slope should be found by radiating outward from the drain, and leveled with a screed. The surface should be flat and free of depressions, ensuring no water accumulation. The location should be far from the doorway to ensure that the doorway is the highest point after the slope is established. Afterward, lay the anti-corrosion waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the floor from bottom to top to complete the floor waterproofing.

[0009] Step 2, waterproofing kitchen and bathroom walls: Lay a layer of cement on the kitchen and bathroom walls and smooth it with a screed. The surface should be flat. The side of the cement away from the kitchen and bathroom walls should be tilted at an angle of 1°-2° so that water can slide down quickly on the walls to reduce the amount of water left on the walls. After that, lay the anti-corrosion and waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the walls from the inside out to complete the waterproofing process.

[0010] Step 3, waterproofing the kitchen and bathroom ceiling: Lay a layer of cement on the kitchen and bathroom ceiling and smooth it with a screed. The surface should be flat, and the side of the cement away from the ceiling should be in a spherical protrusion with a maximum height of 2cm-3cm. This allows water to collect along the spherical protrusion and fall downwards, reducing the amount of residual water on the ceiling. After that, lay the anti-corrosion and waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the kitchen and bathroom ceiling from top to bottom to complete the ceiling waterproofing.

[0011] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the raw materials of the anti-corrosion and waterproof membrane include, by weight: 4-6 parts polyethylene, 2-6 parts polyurethane, 1-3 parts WE type polyethylene wax, 2-8 parts activated carbon particles, 3-5 parts graphite, 6-8 parts carbon black, 4-8 parts preservative, 4-10 parts abrasion resistant agent, and 6-10 parts flame retardant.

[0012] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the preparation process of the anti-corrosion and waterproof membrane is as follows:

[0013] Process 1: Polyethylene, polyurethane, WE type polyethylene wax and activated carbon particles are put into the reaction vessel and mixed for 16-20 minutes at a temperature of 60-64℃.

[0014] Step 2: Graphite, carbon black, preservative, wear-resistant agent and flame retardant are put into the reaction vessel and mixed for 18-22 minutes at a temperature of 74-78℃.

[0015] Step 3: The mixture obtained from Step 1 and Step 2 is put into a granulator for granulation to obtain particulate matter. The temperature is set to 280-340℃ and the speed is set to 90-96 kg / h.

[0016] Step 4: Extrusion casting of the particulate matter to obtain a semi-finished film, with the temperature set at 320-380℃;

[0017] Step 5: Stretch the semi-finished film to obtain an anti-corrosion and waterproof membrane.

[0018] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the raw materials of the preservative include, by weight: 4-8 parts of water-based epoxy resin, 2-8 parts of benzene, and 1-5 parts of benzoic acid.

[0019] The preparation process of the preservative is as follows:

[0020] Step 1: Place the water-based epoxy resin and benzene into the reaction vessel and mix them;

[0021] Step 2: Benzoic acid and the mixture obtained from Step 1 are placed into a reaction vessel and mixed to obtain a preservative;

[0022] The wear-resistant agent is one or more of polyurethane resin or diatomaceous earth;

[0023] The raw materials of the flame retardant include, by weight: 4-8 parts decabromodiphenyl ether, 6-8 parts tetrabromobisphenol A, 2-4 parts octabromoether, and 6-8 parts decabromodiphenyl ethane;

[0024] The preparation process of the flame retardant is as follows:

[0025] Step 1: Tetrabromobisphenol A, octabromoether, and decabromodiphenyl ethane are placed in a reaction vessel and mixed.

[0026] Step 2: The decabromodiphenyl ether and the mixture obtained in Step 1 are placed into a reaction vessel and mixed to obtain a flame retardant.

[0027] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the self-adhesive polymer-modified bitumen waterproof membrane is formed by using an aluminized polyester film as the base material and coating its surface with a rubber-asphalt adhesive material containing active additives.

[0028] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the raw materials of the wear-resistant waterproof coating include, by weight: 2-8 parts acrylic emulsion, 1-5 parts mildew inhibitor, 6-10 parts dispersant, 2-8 parts defoamer, 4-10 parts plasticizer, 2-6 parts preservative, 1-3 parts wear-resistant agent, and 2-8 parts surfactant.

[0029] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the preparation process of the wear-resistant waterproof coating is as follows:

[0030] Process 1: The acrylic emulsion, antifungal agent and dispersant are put into the reaction vessel and mixed at a temperature of 120-140℃ for 14-18 minutes.

[0031] Step 2: Defoamer, plasticizer, preservative, wear-resistant agent and surfactant are put into the reaction vessel and mixed at a temperature of 160-180℃ for 21-23 minutes.

[0032] Step 3: The mixture obtained from Step 1 and Step 2 is placed into a reaction vessel for mixing to obtain a wear-resistant and waterproof coating. The mixing temperature is 165-170℃ and the mixing time is 16-18 minutes.

[0033] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the anti-mildew agent is octyl-

[0034] One or more of isothiazolinone, bisbenzamide, and benzimidazole carbamate;

[0035] The dispersant is sodium dodecyl sulfate, 4-methyl-2-

[0036] One or more mixtures of pentanol and cellulose derivatives;

[0037] The defoamer is a nonionic defoamer;

[0038] The plasticizer is one or more of dioctyl phthalate, dibutyl phthalate, and dioctyl adipate;

[0039] The surfactant is a nonionic surfactant.

[0040] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the corrosion inhibitor is one or more of the following: high-alumina cement, glass flakes, and carboxybenzoic acid.

[0041] The wear-resistant agent is one or more of polyurea and nitrile rubber.

[0042] As a preferred embodiment of the seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials described in this invention, the seamless waterproof coating is 100% pure urethane.

[0043] Compared with existing technologies:

[0044] 1. By waterproofing the walls and ceilings of the kitchen and bathroom, water can be prevented from seeping into the walls and ceilings, thus preventing dampness, mold, and other problems.

[0045] 2. By setting one side of the wall in the kitchen and bathroom to be sloping and the ceiling of the kitchen and bathroom to be spherical protrusion, water remaining on the wall and ceiling can be quickly drained away to avoid water droplets remaining on the wall and ceiling, thereby further improving the waterproof effect.

[0046] 3. By setting an anti-corrosion and waterproof membrane with anti-corrosion, wear-resistant and flame-retardant effects, the service life of the anti-corrosion and waterproof membrane can be greatly improved. Similarly, by setting an wear-resistant and waterproof coating with anti-corrosion and wear-resistant effects, the service life of the waterproof coating can be greatly improved. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below.

[0048] Example 1:

[0049] This invention provides a seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, including the following specific steps:

[0050] Step 1, Waterproofing the Kitchen and Bathroom Floors: When waterproofing the floor, the floor must slope towards the drain and this slope must be established before applying the waterproof coating. The slope should be 1%, and the floor elevation should be 2cm lower than the adjacent indoor floor elevation to prevent water from flowing back into the kitchen and bathroom. The drainage slope 5cm outward from the drain edge should be 3%. During construction, the slope should be established radiating outward from the drain, and leveled with a screed. The surface should be flat and free of depressions, ensuring no water accumulation. The location should be far from the doorway to ensure that the doorway is the highest point after the slope is established. Afterward, lay the anti-corrosion waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the floor from bottom to top to complete the floor waterproofing.

[0051] Step 2, waterproofing kitchen and bathroom walls: Lay a layer of cement on the kitchen and bathroom walls and smooth it with a screed. The surface should be flat. The side of the cement away from the kitchen and bathroom walls should be tilted at an angle of 1° so that water can slide down quickly on the walls to reduce the amount of water left on the walls. After that, lay the anti-corrosion and waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the walls from the inside out to complete the waterproofing process.

[0052] Step 3, Waterproofing the kitchen and bathroom ceiling: Lay a layer of cement on the kitchen and bathroom ceiling and smooth it with a screed. The surface should be flat, and the side of the cement away from the ceiling should be in a spherical protrusion with a maximum height of 2cm. This allows water to collect along the protrusion and fall downwards, reducing the amount of residual water on the ceiling. After that, lay the anti-corrosion and waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the kitchen and bathroom ceiling from top to bottom to complete the ceiling waterproofing.

[0053] The raw materials of the anti-corrosion and waterproof membrane include, by weight: 4 parts polyethylene, 2 parts polyurethane, 1 part WE type polyethylene wax, 2 parts activated carbon granules, 3 parts graphite, 6 parts carbon black, 4 parts preservative, 4 parts abrasion resistant agent, and 6 parts flame retardant.

[0054] The preparation process of the anti-corrosion and waterproof membrane is as follows:

[0055] Process 1: Polyethylene, polyurethane, WE type polyethylene wax and activated carbon particles are put into the reaction vessel and mixed for 16 minutes at a temperature of 60°C.

[0056] Step 2: Graphite, carbon black, preservative, wear-resistant agent and flame retardant are put into the reaction vessel and mixed for 18 minutes at a temperature of 74°C.

[0057] Step 3: The mixture obtained from Step 1 and Step 2 is put into a granulator for granulation to obtain particulate matter, and the temperature is set to 280℃ and the speed is set to 90kg / h.

[0058] Step 4: Extrusion casting of the particulate matter to obtain a semi-finished film, with the temperature set at 320℃;

[0059] Step 5: Stretch the semi-finished film to obtain an anti-corrosion and waterproof membrane.

[0060] The raw materials for the preservative, by weight, include: 4 parts water-based epoxy resin, 2 parts benzene, and 1 part benzoic acid.

[0061] The preparation process of the preservative is as follows:

[0062] Step 1: Place the water-based epoxy resin and benzene into the reaction vessel and mix them;

[0063] Step 2: Benzoic acid and the mixture obtained from Step 1 are placed into a reaction vessel for mixing to obtain a preservative.

[0064] The wear-resistant agent is one or more of polyurethane resin or diatomaceous earth.

[0065] The raw materials for the flame retardant, by weight, include: 4 parts decabromodiphenyl ether, 6 parts tetrabromobisphenol A, 2 parts octabromoether, and 6 parts decabromodiphenyl ethane.

[0066] The preparation process of flame retardants is as follows:

[0067] Step 1: Tetrabromobisphenol A, octabromoether, and decabromodiphenyl ethane are placed in a reaction vessel and mixed.

[0068] Step 2: The decabromodiphenyl ether and the mixture obtained in Step 1 are placed into a reaction vessel and mixed to obtain a flame retardant.

[0069] Self-adhesive polymer-modified bitumen waterproof membrane is formed by using an aluminized polyester film as the base material and coating its surface with a rubber-asphalt adhesive material containing active additives.

[0070] The raw materials of the wear-resistant and waterproof coating include, by weight: 2 parts acrylic emulsion, 1 part mildew inhibitor, 6 parts dispersant, 2 parts defoamer, 4 parts plasticizer, 2 parts preservative, 1 part wear-resistant agent, and 2 parts surfactant.

[0071] The preparation process of wear-resistant and waterproof coating is as follows:

[0072] Process 1: The acrylic emulsion, antifungal agent, and dispersant are placed into the reaction vessel and mixed at a temperature of 120°C for 14 minutes.

[0073] Step 2: Defoamer, plasticizer, preservative, wear-resistant agent and surfactant are put into the reaction vessel and mixed at a temperature of 160℃ for 21 minutes.

[0074] Step 3: The mixture obtained from Step 1 and Step 2 is placed into a reaction vessel for mixing to obtain a wear-resistant and waterproof coating. The mixing temperature is 165℃ and the mixing time is 16min.

[0075] The antifungal agent is octyl-

[0076] One or more of isothiazolinone, bisbenzamide, and benzimidazole carbamate.

[0077] The dispersant is sodium dodecyl sulfate, 4-methyl-2-

[0078] One or more of pentanol and cellulose derivatives.

[0079] The defoamer is a nonionic defoamer.

[0080] The plasticizer is one or more of dioctyl phthalate, dibutyl phthalate, and dioctyl adipate.

[0081] The surfactant is a nonionic surfactant.

[0082] The corrosion inhibitor is one or more of the following: high-alumina cement, glass flakes, and carboxybenzoic acid.

[0083] The abrasion-resistant agent is one or more of polyurea and nitrile rubber.

[0084] Seamless waterproof coating is made of 100% pure urethane. It features high strength and ultra-fast curing properties to form a seamless waterproof film.

[0085] Example 2:

[0086] This invention provides a seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, including the following specific steps:

[0087] Step 1, Waterproofing the Kitchen and Bathroom Floors: When waterproofing the floor, the floor must slope towards the drain and this slope must be established before applying the waterproof coating. The slope should be 1.5%, and the floor elevation should be 2.5cm lower than the adjacent indoor floor elevation to prevent water from flowing back into the kitchen and bathroom. The drainage slope 5cm outward from the drain edge should be 3.5%. During construction, the slope should be established radiating outward from the drain, and leveled with a screed. The surface should be flat and free of depressions, ensuring no water accumulation. The location should be far from the doorway to ensure that the doorway is the highest point after the slope is established. Afterward, lay the anti-corrosion waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the floor from bottom to top to complete the floor waterproofing.

[0088] Step 2, waterproofing kitchen and bathroom walls: Lay a layer of cement on the kitchen and bathroom walls and smooth it with a screed. The surface should be flat. The side of the cement away from the kitchen and bathroom walls should be tilted at an angle of 1.5° so that water can slide down quickly on the walls to reduce the amount of water remaining on the walls. After that, lay the anti-corrosion and waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the walls from the inside out to complete the waterproofing process.

[0089] Step 3, Waterproofing the kitchen and bathroom ceiling: Lay a layer of cement on the kitchen and bathroom ceiling and smooth it with a screed. The surface should be flat, and the side of the cement away from the ceiling should be in a spherical protrusion with a maximum height of 2.5cm. This allows water to collect along the spherical protrusion and fall downwards, reducing the amount of residual water on the ceiling. After that, lay the anti-corrosion and waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the kitchen and bathroom ceiling from top to bottom to complete the ceiling waterproofing.

[0090] The raw materials of the anti-corrosion and waterproof membrane include, by weight: 5 parts polyethylene, 4 parts polyurethane, 2 parts WE type polyethylene wax, 5 parts activated carbon granules, 4 parts graphite, 7 parts carbon black, 6 parts preservative, 7 parts abrasion resistant agent, and 8 parts flame retardant.

[0091] The preparation process of the anti-corrosion and waterproof membrane is as follows:

[0092] Process 1: Polyethylene, polyurethane, WE type polyethylene wax and activated carbon particles are put into the reaction vessel and mixed for 18 minutes at a temperature of 62°C.

[0093] Step 2: Graphite, carbon black, preservative, wear-resistant agent and flame retardant are put into the reaction vessel and mixed for 20 minutes at a temperature of 76°C.

[0094] Step 3: The mixture obtained from Step 1 and Step 2 is put into a granulator for granulation to obtain particulate matter, and the temperature is set to 310℃ and the speed is set to 93kg / h.

[0095] Step 4: Extrusion casting of the particulate matter to obtain a semi-finished film, with the temperature set at 350℃;

[0096] Step 5: Stretch the semi-finished film to obtain an anti-corrosion and waterproof membrane.

[0097] The raw materials for the preservative, by weight, include: 6 parts water-based epoxy resin, 5 parts benzene, and 3 parts benzoic acid.

[0098] The preparation process of the preservative is as follows:

[0099] Step 1: Place the water-based epoxy resin and benzene into the reaction vessel and mix them;

[0100] Step 2: Benzoic acid and the mixture obtained from Step 1 are placed into a reaction vessel for mixing to obtain a preservative.

[0101] The wear-resistant agent is one or more of polyurethane resin or diatomaceous earth.

[0102] The raw materials for the flame retardant, by weight, include: 6 parts decabromodiphenyl ether, 7 parts tetrabromobisphenol A, 3 parts octabromoether, and 7 parts decabromodiphenyl ethane.

[0103] The preparation process of flame retardants is as follows:

[0104] Step 1: Tetrabromobisphenol A, octabromoether, and decabromodiphenyl ethane are placed in a reaction vessel and mixed.

[0105] Step 2: The decabromodiphenyl ether and the mixture obtained in Step 1 are placed into a reaction vessel and mixed to obtain a flame retardant.

[0106] Self-adhesive polymer-modified bitumen waterproof membrane is formed by using an aluminized polyester film as the base material and coating its surface with a rubber-asphalt adhesive material containing active additives.

[0107] The raw materials of the wear-resistant and waterproof coating include, by weight: 5 parts acrylic emulsion, 3 parts mildew inhibitor, 8 parts dispersant, 5 parts defoamer, 7 parts plasticizer, 4 parts preservative, 2 parts wear-resistant agent, and 5 parts surfactant.

[0108] The preparation process of wear-resistant and waterproof coating is as follows:

[0109] Process 1: The acrylic emulsion, antifungal agent, and dispersant are placed into the reaction vessel and mixed at a temperature of 130°C for 16 minutes.

[0110] Step 2: Defoamer, plasticizer, preservative, wear-resistant agent and surfactant are put into the reaction vessel and mixed at a temperature of 170℃ for 22 minutes.

[0111] Step 3: The mixture obtained from Step 1 and Step 2 is placed into a reaction vessel for mixing to obtain a wear-resistant and waterproof coating. The mixing temperature is 167.5℃ and the mixing time is 17 minutes.

[0112] The antifungal agent is octyl-

[0113] One or more of isothiazolinone, bisbenzamide, and benzimidazole carbamate.

[0114] The dispersant is sodium dodecyl sulfate, 4-methyl-2-

[0115] One or more of pentanol and cellulose derivatives.

[0116] The defoamer is a nonionic defoamer.

[0117] The plasticizer is one or more of dioctyl phthalate, dibutyl phthalate, and dioctyl adipate.

[0118] The surfactant is a nonionic surfactant.

[0119] The corrosion inhibitor is one or more of the following: high-alumina cement, glass flakes, and carboxybenzoic acid.

[0120] The abrasion-resistant agent is one or more of polyurea and nitrile rubber.

[0121] The seamless waterproof coating is made of 100% pure urethane.

[0122] Example 3:

[0123] This invention provides a seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, including the following specific steps:

[0124] Step 1, Waterproofing the Kitchen and Bathroom Floors: When waterproofing the floor, the floor must slope towards the drain and this slope must be established before applying the waterproof coating. The slope should be 2%, and the floor level should be 3cm lower than the adjacent indoor floor level to prevent water from flowing back into the kitchen and bathroom. The drainage slope 5cm outward from the drain should be 4%. During construction, the slope should be established radiating outward from the drain, and leveled with a screed. The surface should be flat and free of depressions, ensuring no water accumulation. The location should be far from the doorway to ensure that the doorway is the highest point after the slope is established. Afterward, lay the anti-corrosion waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the floor from bottom to top to complete the floor waterproofing.

[0125] Step 2, waterproofing kitchen and bathroom walls: Lay a layer of cement on the kitchen and bathroom walls and smooth it with a screed. The surface should be flat. The side of the cement away from the kitchen and bathroom walls should be tilted at an angle of 2° so that water can slide down quickly on the walls to reduce the amount of water left on the walls. After that, lay the anti-corrosion and waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the walls from the inside out to complete the waterproofing process.

[0126] Step 3, Waterproofing the kitchen and bathroom ceiling: Lay a layer of cement on the kitchen and bathroom ceiling and smooth it with a screed. The surface should be flat, and the side of the cement away from the ceiling should be in a spherical protrusion with a maximum height of 3cm. This allows water to collect along the protrusion and fall downwards, reducing the amount of residual water on the ceiling. After that, lay the anti-corrosion and waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the ceiling from top to bottom to complete the waterproofing.

[0127] The raw materials of the anti-corrosion and waterproof membrane include, by weight: 6 parts polyethylene, 6 parts polyurethane, 3 parts WE type polyethylene wax, 8 parts activated carbon granules, 5 parts graphite, 8 parts carbon black, 8 parts preservative, 10 parts abrasion resistant agent, and 10 parts flame retardant.

[0128] The preparation process of the anti-corrosion and waterproof membrane is as follows:

[0129] Process 1: Polyethylene, polyurethane, WE type polyethylene wax and activated carbon particles are put into the reaction vessel and mixed for 20 minutes at a temperature of 64°C.

[0130] Step 2: Graphite, carbon black, preservative, wear-resistant agent and flame retardant are put into the reaction vessel and mixed for 22 minutes at a temperature of 78°C.

[0131] Step 3: The mixture obtained from Step 1 and Step 2 is put into a granulator for granulation to obtain particulate matter, and the temperature is set to 340℃ and the speed is set to 96kg / h;

[0132] Step 4: Extrusion casting of the particulate matter to obtain a semi-finished film, with the temperature set at 380℃;

[0133] Step 5: Stretch the semi-finished film to obtain an anti-corrosion and waterproof membrane.

[0134] The raw materials for the preservative, by weight, include: 8 parts water-based epoxy resin, 8 parts benzene, and 5 parts benzoic acid.

[0135] The preparation process of the preservative is as follows:

[0136] Step 1: Place the water-based epoxy resin and benzene into the reaction vessel and mix them;

[0137] Step 2: Benzoic acid and the mixture obtained from Step 1 are placed into a reaction vessel for mixing to obtain a preservative.

[0138] The wear-resistant agent is one or more of polyurethane resin or diatomaceous earth.

[0139] The raw materials for the flame retardant, by weight, include: 8 parts decabromodiphenyl ether, 8 parts tetrabromobisphenol A, 4 parts octabromoether, and 8 parts decabromodiphenyl ethane.

[0140] The preparation process of flame retardants is as follows:

[0141] Step 1: Tetrabromobisphenol A, octabromoether, and decabromodiphenyl ethane are placed in a reaction vessel and mixed.

[0142] Step 2: The decabromodiphenyl ether and the mixture obtained in Step 1 are placed into a reaction vessel and mixed to obtain a flame retardant.

[0143] Self-adhesive polymer-modified bitumen waterproof membrane is formed by using an aluminized polyester film as the base material and coating its surface with a rubber-asphalt adhesive material containing active additives.

[0144] The raw materials of the wear-resistant and waterproof coating include, by weight: 8 parts acrylic emulsion, 5 parts mildew inhibitor, 10 parts dispersant, 8 parts defoamer, 10 parts plasticizer, 6 parts preservative, 3 parts wear-resistant agent, and 8 parts surfactant.

[0145] The preparation process of wear-resistant and waterproof coating is as follows:

[0146] Process 1: The acrylic emulsion, antifungal agent, and dispersant are placed into the reaction vessel and mixed at a temperature of 140°C for 18 minutes.

[0147] Step 2: Defoamer, plasticizer, preservative, wear-resistant agent and surfactant are put into the reaction vessel and mixed at a temperature of 180℃ for 23 minutes.

[0148] Step 3: The mixture obtained from Step 1 and Step 2 is placed into a reaction vessel for mixing to obtain a wear-resistant and waterproof coating. The mixing temperature is 170℃ and the mixing time is 18 minutes.

[0149] The antifungal agent is octyl-

[0150] One or more of isothiazolinone, bisbenzamide, and benzimidazole carbamate.

[0151] The dispersant is sodium dodecyl sulfate, 4-methyl-2-

[0152] One or more of pentanol and cellulose derivatives.

[0153] The defoamer is a nonionic defoamer.

[0154] The plasticizer is one or more of dioctyl phthalate, dibutyl phthalate, and dioctyl adipate.

[0155] The surfactant is a nonionic surfactant.

[0156] The corrosion inhibitor is one or more of the following: high-alumina cement, glass flakes, and carboxybenzoic acid.

[0157] The abrasion-resistant agent is one or more of polyurea and nitrile rubber.

[0158] The seamless waterproof coating is made of 100% pure urethane.

[0159] Water tightness test:

[0160] After a 48-hour water tightness test was conducted on Example 1, the water level did not drop, and no seepage or leakage occurred on the floor or walls. After continuously spraying water on the top surface of Example 1 for 48 hours, no seepage or leakage occurred on the top surface.

[0161] After a 48-hour water tightness test was conducted on Example 2, the water level did not drop, and no seepage or leakage occurred on the floor or walls. After continuously spraying water on the top surface of Example 2 for 48 hours, no seepage or leakage occurred on the top surface.

[0162] After a 48-hour water tightness test was conducted on Example 3, the water level did not drop, and no seepage or leakage occurred on the floor or walls. After continuously spraying water on the top surface of Example 3 for 48 hours, no seepage or leakage occurred on the top surface.

[0163] in addition:

[0164] After spraying water onto the walls and ceiling of Example 1, no water droplets were visible on the walls and ceiling after 10 seconds.

[0165] After spraying water onto the walls and ceiling of Example 2, no water droplets were visible on the walls and ceiling after 6 seconds.

[0166] After spraying water onto the wall and ceiling of Example 3, no water droplets were visible on the wall and ceiling after 8 seconds.

[0167] As can be seen from the above, after use, Example 2 showed the best results.

[0168] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, characterized in that, The specific steps are as follows: Step 1, Waterproofing of the kitchen and bathroom floors: When carrying out waterproofing construction, the floor must slope towards the drain and this slope must be established before applying the waterproof coating. The slope should be 1%-2%, and the floor elevation should be 2cm-3cm lower than the adjacent indoor floor elevation to prevent water from flowing back into the kitchen and bathroom. The drainage slope 5cm outward from the drain edge should be 3%-4%. During construction, the slope should be established radiating outward from the drain, and leveled with a screed. The surface should be flat and free of depressions, ensuring no water accumulation. The location should be far from the doorway to ensure that the doorway is the highest point after the slope is established. Afterward, lay the anti-corrosion waterproof membrane, self-adhesive polymer modified bitumen waterproof membrane, anti-corrosion waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the floor from bottom to top to complete the floor waterproofing. Step 2, Waterproofing of the kitchen and bathroom walls: Lay a layer of cement on the kitchen and bathroom walls and level it with a screed. The surface should be flat. Next, tilt the cement on the side away from the kitchen and bathroom walls at an angle of 1°-2° to allow water to slide down quickly and reduce residual water on the walls. Then, lay the anti-corrosion and waterproof membrane, self-adhesive polymer-modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the walls from the inside out to complete the wall waterproofing. Step 3: Waterproofing the kitchen and bathroom ceiling: Lay a layer of cement on the kitchen and bathroom ceiling and smooth it with a screed. The surface should be flat. Make a spherical protrusion on the side of the cement away from the ceiling, with the highest point of the spherical protrusion being 2cm-3cm. This allows water to collect along the spherical protrusion and fall downwards to reduce residual water on the kitchen and bathroom ceiling. Then, lay the anti-corrosion and waterproof membrane, self-adhesive polymer-modified bitumen waterproof membrane, anti-corrosion and waterproof membrane, wear-resistant waterproof coating, and seamless waterproof coating on the kitchen and bathroom ceiling from top to bottom to complete the ceiling waterproofing.

2. The seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials as described in claim 1, characterized in that, The raw materials of the anti-corrosion and waterproof membrane include, by weight: 4-6 parts polyethylene, 2-6 parts polyurethane, 1-3 parts WE type polyethylene wax, 2-8 parts activated carbon particles, 3-5 parts graphite, 6-8 parts carbon black, 4-8 parts preservative, 4-10 parts wear-resistant agent, and 6-10 parts flame retardant.

3. The seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials as described in claim 2, characterized in that, The preparation process of the anti-corrosion and waterproof membrane is as follows: Process 1: Polyethylene, polyurethane, WE-type polyethylene wax and activated carbon particles are put into a reaction vessel and mixed for 16-20 minutes at a temperature of 60-64℃; Process 2: Graphite, carbon black, preservative, wear-resistant agent and flame retardant are put into a reaction vessel and mixed for 18-22 minutes at a temperature of 74-78℃; Process 3: The mixture obtained from Process 1 and Process 2 is put into a granulator for granulation to obtain granules, with the temperature set at 280-340℃ and the speed set at 90-96 kg / h; Process 4: The granules are extruded and cast to obtain a semi-finished film at a temperature of 320-380℃; Process 5: The semi-finished film is stretched to obtain the anti-corrosion and waterproof membrane.

4. The seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials as described in claim 3, characterized in that, The raw materials of the preservative, by weight, include: 4-8 parts of water-based epoxy resin, 2-8 parts of benzene, and 1-5 parts of benzoic acid; the preparation process of the preservative is as follows: Step 1: Water-based epoxy resin and benzene are mixed in a reaction vessel; Step 2: Benzoic acid and the mixture obtained in Step 1 are mixed in a reaction vessel to obtain the preservative; the wear-resistant agent is one or more of polyurethane resin or diatomaceous earth; the raw materials of the flame retardant, by weight, include: 4-8 parts of decabromodiphenyl ether, 6-8 parts of tetrabromobisphenol A, 2-4 parts of octabromoether, and 6-8 parts of decabromodiphenyl ethane; the preparation process of the flame retardant is as follows: Step 1: Tetrabromobisphenol A, octabromoether, and decabromodiphenyl ethane are mixed in a reaction vessel; Step 2: Decabromodiphenyl ether and the mixture obtained in Step 1 are mixed in a reaction vessel to obtain the flame retardant.

5. The seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials as described in claim 1, characterized in that, The self-adhesive polymer-modified bitumen waterproof membrane is formed by using an aluminized polyester film as the base material and coating its surface with a rubber-asphalt adhesive material containing active additives.

6. The seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials as described in claim 1, characterized in that, The raw materials of the wear-resistant and waterproof coating include, by weight: 2-8 parts acrylic emulsion, 1-5 parts mildew inhibitor, 6-10 parts dispersant, 2-8 parts defoamer, 4-10 parts plasticizer, 2-6 parts preservative, 1-3 parts wear-resistant agent, and 2-8 parts surfactant.

7. A seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, as described in claim 6, is characterized in that... The preparation process of the wear-resistant and waterproof coating is as follows: Process 1: Acrylic emulsion, mildew inhibitor and dispersant are put into a reaction vessel and mixed at a mixing temperature of 120-140℃ for 14-18 min; Process 2: Defoamer, plasticizer, preservative, wear-resistant agent and surfactant are put into a reaction vessel and mixed at a mixing temperature of 160-180℃ for 21-23 min; Process 3: The mixture obtained from Process 1 and Process 2 is put into a reaction vessel and mixed to obtain the wear-resistant and waterproof coating at a mixing temperature of 165-170℃ for 16-18 min.

8. A seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, as described in claim 6, is characterized in that... The antifungal agent is one or more of octyl-isothiazolinone, bisbenzamide, and benzimidazole carbamate; the dispersant is one or more of sodium dodecyl sulfate, 4-methyl-2-pentanol, and cellulose derivatives; the defoamer is a nonionic defoamer; the plasticizer is one or more of dioctyl phthalate, dibutyl phthalate, and dioctyl adipate; and the surfactant is a nonionic surfactant.

9. A seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, as described in claim 6, is characterized in that... The corrosion inhibitor is one or more of high-alumina cement, glass flakes, and carboxybenzoic acid; the wear-resistant agent is one or more of polyurea and nitrile rubber.

10. A seamless waterproofing construction method for kitchens and bathrooms based on the combination of coatings and materials, as described in claim 1, is characterized in that... The seamless waterproof coating is 100% pure urethane.

Citation Information

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