Weather-proof internal and external wall corundum paste ceramic tile gum and preparation method thereof

Abstract

The invention provides a weather-resistant internal and external wall corundum paste ceramic tile gum and a preparation method thereof, the raw materials comprise 20-40 parts of corundum, 30-50 parts of a polymer emulsion, 10-20 parts of cement, 10-20 parts of a filler, 1-3 parts of a dispersant, 0.5-1.5 parts of an antifoaming agent, 1-3 parts of a thickening agent, 0.5-1.5 parts of an antioxidant, 0.5-1.8 parts of an antifreeze agent, 1.5-3.5 parts of a mildew preventive, 60-90 parts of deionized water and the like, the granularity of the corundum is 80-120 meshes, and the granularity of the polymer emulsion is 80-120 meshes. The antioxidant is prepared from 2, 6-butylated hydroxytoluene, triphenyl phosphite and nano-zinc oxide according to a specific proportion, and the mildew preventive is prepared by mixing lanthanum nitrate, cerium nitrate and polyhexamethylene guanidine according to a specific proportion. The preparation method comprises the following steps: activating and dispersing the polymer emulsion, sequentially adding the cement and the like for mixing and defoaming, adding the functional agent, and then carrying out thickening treatment. Through the synergistic effect of all the components, the back adhesive has good weather resistance, the antioxidant can delay aging, the mildew preventive can inhibit mold growth, the back adhesive is suitable for sticking of tiles of inner and outer walls, and the paving quality and durability of the tiles can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of tile adhesive, and in particular to a weather-resistant corundum paste-shaped tile adhesive for interior and exterior walls and a preparation method thereof. Background Art

[0002] In the field of building decoration, ceramic tiles are a commonly used wall and floor decoration material, and their laying quality is very important. The tile adhesive plays a key bonding role in the process of tile laying, directly affecting the bonding strength between the tile and the base layer and the durability of the entire laying system.

[0003] Traditional tile adhesives have many shortcomings when facing complex usage environments. In terms of weather resistance, ordinary adhesives are difficult to withstand long-term direct sunlight, temperature changes, and wind and rain erosion. Ultraviolet rays in sunlight can cause the polymer molecular chains in the adhesive to break and cross-link, causing the adhesive to gradually lose its elasticity and adhesion. In an environment where high and low temperatures alternate, the adhesive is prone to thermal expansion and contraction, resulting in cracks, hollows, and even falling off. In addition, in the process of long-term light, temperature changes, and contact with various chemicals, the adhesive is prone to color changes, fading, discoloration, or uneven color. This seriously affects the safety and aesthetics of tile paving.

[0004] In terms of mildew resistance, many existing tile adhesives lack effective mildew resistance measures. In humid environments such as bathrooms, kitchens or basements, mildew can easily grow on the adhesive surface. The growth of mildew will not only destroy the structural integrity of the adhesive and reduce its bonding strength, but also cause stains such as black spots and mildew on the adhesive surface, affecting the appearance of the building decoration. It may also have an adverse effect on indoor air quality and threaten the health of residents.

[0005] In addition, the uneven mixing of raw materials during the preparation of traditional adhesives can easily lead to unstable product performance. For example, functional additives such as antioxidants and antifreeze agents cannot be evenly dispersed in the adhesive system, which will greatly reduce their effectiveness and fail to fully guarantee the performance requirements of the adhesive in various environments, making it difficult to meet the high-quality and long-life requirements of modern buildings for tile paving. Summary of the invention

[0006] In view of this, the present invention proposes a weather-resistant internal and external wall corundum paste-like tile adhesive and a preparation method thereof to solve the above problems.

[0007] The technical solution of the present invention is achieved as follows: a weather-resistant corundum paste-like tile adhesive for internal and external walls comprises the following raw materials in parts by weight: 20-40 parts of corundum, 30-50 parts of polymer emulsion, 10-20 parts of cement, 10-20 parts of filler, 1-3 parts of dispersant, 0.5-1.5 parts of defoamer, 1-3 parts of thickener, 0.5-1.5 parts of antioxidant, 0.5-1.8 parts of antifreeze agent, 1.5-3.5 parts of mildewproof agent, and 60-90 parts of deionized water; the particle size of the corundum is 80-120 meshes, the antioxidant is 2,6-di-tert-butyl-p-cresol, triphenyl phosphite and nano zinc oxide in a mass ratio of (5-10):(1-3):(12-15), and the mildewproof agent is prepared by mixing lanthanum nitrate, cerium nitrate and polyhexamethylene guanidine in a mass ratio of (15-25):(10-20):(5-8).

[0008] Furthermore, a weather-resistant interior and exterior wall corundum paste-like tile adhesive comprises the following raw materials in parts by weight: 30 parts of corundum, 40 parts of polymer emulsion, 15 parts of cement, 15 parts of filler, 2 parts of dispersant, 1 part of defoamer, 2 parts of thickener, 1 part of antioxidant, 1.5 parts of antifreeze agent, 2.5 parts of mildewcide, and 70 parts of deionized water.

[0009] Furthermore, the polymer emulsion is one or more combinations of styrene-acrylic emulsion, pure acrylic emulsion or silicone-acrylic emulsion.

[0010] Furthermore, the filler is one or more of light calcium carbonate, heavy calcium carbonate or quartz powder, and the particle size is 1-10 μm.

[0011] Furthermore, the dispersant is sodium polyacrylate, sodium hexametaphosphate or sodium tripolyphosphate in a mass ratio of (5-12):(1-3):(3-8).

[0012] Furthermore, the defoamer is one or a combination of silicone defoamer, mineral oil defoamer or polyether defoamer.

[0013] Furthermore, the thickener is hydroxyethyl cellulose.

[0014] Furthermore, the antifreeze agent is glycerol, propylene glycol and sodium sulfate in a mass ratio of (1.2-3.5):(3.8-5.3):10.

[0015] Furthermore, a method for preparing a weather-resistant interior and exterior wall corundum paste-like tile adhesive comprises the following steps:

[0016] (1) Activation and dispersion: Add the polymer emulsion into the reactor and activate it by ultrasonication at a frequency of 20-30 kHz for 3-5 minutes, then stir at 300-500 rpm for 5-10 minutes to make it uniform, then add the dispersant by ultrasonication at a frequency of 10-15 kHz and stirring, and treat for 3-5 minutes to ensure dissolution and dispersion;

[0017] (2) Mixing and defoaming treatment: cement, corundum and filler are gradually added to the above-mentioned reaction kettle, first stirred at a low speed of 500-600 rpm for 3-5 minutes, then increased to 800-1000 rpm and stirred for 10-15 minutes to fully mix them with the polymer emulsion, then added with defoamer, and at the same time, vacuum is turned on to -0.05 to -0.08 MPa, and stirred for 8-10 minutes to eliminate bubbles to obtain a preliminary mixed material;

[0018] (3) Addition of functional agent: After mixing the antioxidant components in proportion, use a high-energy ball mill for 10-15 minutes to refine the particle size and compound, then add the preliminary mixed material and antifreeze agent at the same time, stir at 500-800 rpm for 8-12 minutes to ensure uniform dispersion, add antifungal agent, and continue stirring for 5-8 minutes.

[0019] (4) Thickening treatment: Slowly add the thickener and deionized water to the above mixture, adjust the stirring speed to 200-400 rpm, and stir for 10-15 minutes.

[0020] Furthermore, in the activation dispersion of step (1), microwave radiation with a power of 50-100 W is performed for 2-5 min before ultrasound.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The weather-resistant interior and exterior wall diamond abrasive paste-like tile adhesive proposed by the present invention combines the wear resistance of diamond abrasive with the excellent bonding property of polymer emulsion to form a high-strength and high-toughness bonding layer, which can firmly adhere tiles to various wall surfaces, effectively resist the external environment, and greatly extend the service life of the tiles after paving; wherein the mildew inhibitor is formed by mixing lanthanum nitrate, cerium nitrate and polyhexamethylene guanidine in a specific proportion, which can inhibit the growth of various molds. In a humid environment, it can effectively prevent the growth of mold from damaging the adhesive structure and bonding properties, keep the adhesive surface clean, and free of black spots and mildew, which is not only conducive to maintaining the aesthetics of architectural decoration, but also ensures the hygiene and health of the indoor environment. It is particularly suitable for tile laying in humid areas such as bathrooms and kitchens. It also uses 2,6-di-tert-butyl-p-cresol, triphenyl phosphite and nano zinc oxide with optimized mass ratio as antioxidants. These ingredients work synergistically to effectively resist the damage of external factors such as light, heat, and oxygen to the pigment molecules in the tile adhesive, thereby maintaining the long-lasting stability of the color of the tile adhesive. In particular, nano zinc oxide, with its tiny particle size and high specific surface area, enables it to be more evenly dispersed in the tile adhesive, forming a dense protective layer, which effectively isolates the influence of external environmental factors on the pigment molecules, further extending the service life of the tile adhesive.

[0023] In addition, the present invention also ensures the uniform dispersion and close bonding between the components in the tile backing adhesive through a sophisticated preparation process, such as activation and dispersion, mixing and defoaming treatment, functional agent addition and thickening treatment, thereby improving the overall color stability and weather resistance. DETAILED DESCRIPTION

[0024] In order to better understand the technical content of the present invention, specific embodiments are provided below to further illustrate the present invention.

[0025] Unless otherwise specified, the experimental methods used in the embodiments of the present invention are all conventional methods.

[0026] Unless otherwise specified, the materials, reagents, etc. used in the embodiments of the present invention can be obtained from commercial sources.

[0027] Example 1

[0028] A weather-resistant corundum paste-like tile adhesive for interior and exterior walls, comprising the following raw materials in parts by weight: 20 parts of corundum, 30 parts of polymer emulsion, 10 parts of cement, 10 parts of filler, 1 part of dispersant, 0.5 parts of defoamer, 1 part of thickener, 0.5 parts of antioxidant, 0.5 parts of antifreeze agent, 1.5 parts of mildew inhibitor, and 60 parts of deionized water;

[0029] The particle size of the diamond sand is 80 mesh;

[0030] The polymer emulsion is a styrene-acrylic emulsion;

[0031] The filler is light calcium carbonate with a particle size of 1 μm;

[0032] The dispersant is sodium polyacrylate, sodium hexametaphosphate or sodium tripolyphosphate in a mass ratio of 5:1:3;

[0033] The defoamer is an organosilicon defoamer;

[0034] The thickener is hydroxyethyl cellulose;

[0035] The antioxidant is 2,6-di-tert-butyl-p-cresol, triphenyl phosphite and nano zinc oxide in a mass ratio of 5:1:12;

[0036] The antifreeze agent is glycerol, propylene glycol and sodium sulfate in a mass ratio of 1.2:3.8:10;

[0037] The mildew inhibitor is prepared by mixing lanthanum nitrate, cerium nitrate and polyhexamethylene guanidine in a mass ratio of 15:10:5.

[0038] Example 2

[0039] A weather-resistant corundum paste-like tile adhesive for interior and exterior walls, comprising the following raw materials in parts by weight: 40 parts of corundum, 50 parts of polymer emulsion, 20 parts of cement, 20 parts of filler, 3 parts of dispersant, 1.5 parts of defoamer, 3 parts of thickener, 1.5 parts of antioxidant, 1.8 parts of antifreeze agent, 3.5 parts of mildew inhibitor, and 90 parts of deionized water;

[0040] The particle size of the diamond sand is 120 mesh;

[0041] The polymer emulsion is a styrene acrylic emulsion;

[0042] The filler is light calcium carbonate with a particle size of 10 μm;

[0043] The dispersant is sodium polyacrylate, sodium hexametaphosphate or sodium tripolyphosphate in a mass ratio of 12:3:8;

[0044] The defoamer is a mineral oil defoamer;

[0045] The thickener is hydroxyethyl cellulose;

[0046] The antioxidant is 2,6-di-tert-butyl-p-cresol, triphenyl phosphite and nano zinc oxide in a mass ratio of 10:3:15;

[0047] The antifreeze agent is glycerol, propylene glycol and sodium sulfate in a mass ratio of 3.5:5.3:10;

[0048] The mildew inhibitor is prepared by mixing lanthanum nitrate, cerium nitrate and polyhexamethylene guanidine in a mass ratio of 25:20:8.

[0049] Example 3

[0050] A weather-resistant corundum paste-like tile adhesive for interior and exterior walls, comprising the following raw materials in parts by weight: 30 parts of corundum, 40 parts of polymer emulsion, 15 parts of cement, 15 parts of filler, 2 parts of dispersant, 1 part of defoamer, 2 parts of thickener, 1 part of antioxidant, 1.5 parts of antifreeze agent, 2.5 parts of mildew inhibitor, and 70 parts of deionized water;

[0051] The particle size of the diamond sand is 100 mesh;

[0052] The polymer emulsion is a styrene acrylic emulsion;

[0053] The filler is light calcium carbonate with a particle size of 5 μm;

[0054] The dispersant is sodium polyacrylate, sodium hexametaphosphate or sodium tripolyphosphate in a mass ratio of 10:2:5;

[0055] The defoamer is a polyether defoamer;

[0056] The thickener is hydroxyethyl cellulose;

[0057] The antioxidant is 2,6-di-tert-butyl-p-cresol, triphenyl phosphite and nano zinc oxide in a mass ratio of 8:2:13;

[0058] The antifreeze agent is glycerol, propylene glycol and sodium sulfate in a mass ratio of 2.5:4.2:10;

[0059] The mildew inhibitor is prepared by mixing lanthanum nitrate, cerium nitrate and polyhexamethylene guanidine in a mass ratio of 20:15:7. The above examples 1-3 are prepared by the following method:

[0060] (1) Activation and dispersion: The polymer emulsion was first subjected to microwave irradiation at a power of 80 W for 3 min, then added to the reactor and activated by ultrasonication at a frequency of 25 kHz for 4 min, then stirred at 400 rpm for 8 min to make it uniform, and then ultrasonically added with stirring at a frequency of 12 kHz and the dispersant was treated for 4 min to ensure dissolution and dispersion;

[0061] (2) Mixing and defoaming treatment: cement, corundum and filler were gradually added to the above reactor, first stirred at a low speed of 550 rpm for 4 min, then increased to 900 rpm and stirred for 12 min to fully mix them with the polymer emulsion, then added defoamer, and at the same time, vacuum was turned on to -0.07 MPa, and stirred for 9 min to eliminate bubbles to obtain a preliminary mixed material;

[0062] (3) Addition of functional agent: After the antioxidant components are mixed in proportion, they are ball-milled in a high-energy ball mill for 12 minutes to refine the particle size and compound, and then the preliminary mixed materials are added. At the same time, the antifreeze agent is added and stirred at 700 rpm for 10 minutes to ensure uniform dispersion. The mildew inhibitor is added and stirred for 7 minutes.

[0063] (4) Thickening treatment: Slowly add the thickener and deionized water into the above mixture, adjust the stirring speed to 300 rpm, and stir for 13 minutes.

[0064] Comparative Example 1

[0065] A weather-resistant corundum paste-like tile adhesive for interior and exterior walls comprises the following raw materials in parts by weight: 10 parts of corundum, 12 parts of polymer emulsion, 22 parts of cement, 5 parts of filler, 5 parts of dispersant, 2 parts of defoamer, 5 parts of thickener, 0.3 parts of antioxidant, 0.3 parts of antifreeze agent, 0.5 parts of mildewproof agent and 90 parts of deionized water.

[0066] Comparative Example 2

[0067] The difference between this comparative example and Example 3 is that the raw material of the tile adhesive does not contain an antioxidant.

[0068] Comparative Example 3

[0069] The difference between this comparative example and Example 3 is that the raw material of the tile adhesive does not contain mildew inhibitor.

[0070] Test Example 1 - Antifungal Properties

[0071] 1. Preparation of test materials and equipment

[0072] 1. Preparation of fungal spore suspension: Select Aspergillus niger, Penicillium sp, and Chaetomium globosum culture and dilute them to a concentration of 1×10 6 The concentration of spores.

[0073] 2. Specimen preparation: Select a ceramic tile with a size of 50 mm × 50 mm, ensure that its surface is flat, clean and free of impurities such as oil, and use a specific coating tool to evenly apply the ceramic tile backing glue of the above-mentioned Examples 1-3 and Comparative Examples 1-3 on the surface of the ceramic tile, and control the coating thickness of the backing glue to 3 mm.

[0074] 2. Inoculation and Cultivation Process

[0075] 1. Inoculation operation: shake the prepared mixed mold spore suspension thoroughly, use a sterile spray gun or applicator, and inoculate the spore suspension evenly on the surface of the specimen under a sterile operating environment. The inoculation amount is controlled to be 0.1-0.2ml of spore suspension per square centimeter of the specimen surface to ensure that the spores are evenly distributed on the specimen surface. After inoculation, place the specimen on a sterile culture dish or other suitable support to avoid contact or contamination between the specimens.

[0076] 2. Cultivation management: The inoculated specimens are quickly placed in a constant temperature and humidity incubator with set conditions to start cultivation. The temperature is 28±1℃ and the humidity is 90±5%.

[0077] 3. Observation and evaluation of results

[0078] 1. Observation method: After 28 days of cultivation, take out the specimen for observation. First, use the naked eye to directly observe the mold coverage area, color change, growth morphology and other characteristics on the surface of the specimen. The specimen can be compared with the uninoculated blank specimen to more intuitively judge the degree of mold growth.

[0079] 2. Evaluation criteria:

[0080] According to the observation results, the mildew resistance level of the tile adhesive was evaluated with reference to the relevant standard mildew resistance level atlas (the mildew resistance level evaluation standard specified in GB / T24128-2009).

[0081] Level 0: no mold growth;

[0082] Level 1: Very slight mold growth, with mold coverage of less than 10%;

[0083] Level 2: Slight mold growth, with mold coverage of 10%-30%;

[0084] Level 3: Moderate mold growth, with mold coverage of 30%-60%;

[0085] Level 4: Severe mold growth, with mold covering more than 60% of the area.

[0086] IV. Experimental Results

[0087]

[0088]

[0089] In the 28-day mold culture period, Examples 1-3 all showed excellent anti-mold performance, and achieved the effect of grade 0 (no growth) against Aspergillus niger, Penicillium and Chaetomium globosum. This shows that in the formula design of the tile adhesive of the present invention, the components and proportions used can effectively inhibit the growth and reproduction of mold. Whether from the anti-mold properties of the material itself or the synergistic effect between the components, an environment that is not conducive to the survival of mold is constructed.

[0090] Test Example 2-Color Stability Test

[0091] 1. Artificial accelerated aging test: Use high-intensity ultraviolet light generated by ultraviolet lamps to accelerate the aging of tile adhesive. Place the specimen in an ultraviolet aging box and set the wavelength of the ultraviolet lamp to 340nm and the intensity to 0.89W / m 2, irradiate continuously at 60℃ for 48 hours, then take out and observe the change of back glue color.

[0092] 2. High temperature stability test: Place the tile sample coated with tile adhesive in an oven, keep it at 120℃ for 12 hours, and observe the change in the color of the adhesive.

[0093] 3. Water resistance test: Soak the tile specimens coated with tile adhesive in water at 40℃±2, take them out after 21 days, and observe whether the color of the adhesive changes or fades.

[0094] 4. Chemical resistance test: Prepare 1 mol / L hydrochloric acid solution and 0.1 mol / L sodium hydroxide solution, soak the samples coated with tile adhesive in these solutions for 48 hours respectively, then take them out and observe the changes in the color of the adhesive.

[0095] Experimental results:

[0096]

[0097]

[0098] From the test data, the ΔE values ​​of Examples 1-3 in various tests are relatively small, indicating that they exhibit good color stability under different influencing factors.

[0099] From the above table results, it can be seen that compared with Comparative Example 2, the antioxidant of the present invention can capture the free radicals generated when the back glue is affected by environmental factors such as light and heat by providing hydrogen atoms. 2,6-di-tert-butyl-p-cresol can react with these free radicals and form relatively stable free radical intermediates by itself, thereby interrupting the oxidation chain reaction and preventing the further propagation of the oxidation reaction. Triphenyl phosphite exerts an antioxidant effect by decomposing hydroperoxides, thereby inhibiting the oxidation reaction. At the same time, it can also produce a synergistic effect with 2,6-di-tert-butyl-p-cresol to enhance antioxidant properties. The photocatalytic performance of nano zinc oxide can absorb and scatter ultraviolet rays, reducing the damage of ultraviolet rays to the back glue.

[0100] Compared with Comparative Example 3, the rare earth ions of lanthanum nitrate and cerium nitrate can bind to the proteins on the surface of fungal cells, change their spatial conformation and charge distribution, thereby interfering with the normal physiological functions of fungal cells and inhibiting the growth and reproduction of fungi; polyhexamethylene guanidine can be adsorbed on the surface of fungal cell membranes and inserted into the phospholipid bilayer of the cell membrane, increasing the permeability of the cell membrane, causing leakage of substances in the cells, and ultimately causing the death of fungal cells. In synergistic effect with lanthanum nitrate and cerium nitrate, this mildew inhibitor can produce a strong inhibitory effect on a variety of common molds such as Aspergillus niger and Penicillium, and effectively prevent the growth of mold on tile adhesive in a humid environment.

[0101] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A weather-resistant corundum paste-like tile adhesive for interior and exterior walls, characterized in that: The invention comprises the following raw materials in parts by weight: 20-40 parts of corundum, 30-50 parts of polymer emulsion, 10-20 parts of cement, 10-20 parts of filler, 1-3 parts of dispersant, 0.5-1.5 parts of defoamer, 1-3 parts of thickener, 0.5-1.5 parts of antioxidant, 0.5-1.8 parts of antifreeze agent, 1.5-3.5 parts of mildewproof agent and 60-90 parts of deionized water; the particle size of the corundum is 80-120 meshes; the antioxidant is 2,6-di-tert-butyl-p-cresol, triphenyl phosphite and nano zinc oxide in a mass ratio of (5-10):(1-3):(12-15); the mildewproof agent is prepared by mixing lanthanum nitrate, cerium nitrate and polyhexamethylene guanidine in a mass ratio of (15-25):(10-20):(5-8).

2. A weather-resistant interior and exterior wall diamond sand paste-like tile adhesive as claimed in claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 30 parts of corundum, 40 parts of polymer emulsion, 15 parts of cement, 15 parts of filler, 2 parts of dispersant, 1 part of defoamer, 2 parts of thickener, 1 part of antioxidant, 1.5 parts of antifreeze agent, 2.5 parts of mildewproof agent and 70 parts of deionized water.

3. The weather-resistant corundum paste-like tile adhesive for interior and exterior walls according to claim 1, characterized in that: The polymer emulsion is one or more combinations of styrene-acrylic emulsion, pure acrylic emulsion or silicone-acrylic emulsion.

4. The weather-resistant corundum paste-like tile adhesive for interior and exterior walls according to claim 1, characterized in that: The filler is one or more of light calcium carbonate, heavy calcium carbonate or quartz powder, and the particle size is 1-10 μm.

5. The weather-resistant corundum paste-like tile adhesive for interior and exterior walls according to claim 1, characterized in that: The dispersant is sodium polyacrylate, sodium hexametaphosphate or sodium tripolyphosphate in a mass ratio of (5-12):(1-3):(3-8).

6. The weather-resistant corundum paste-like tile adhesive for interior and exterior walls according to claim 1, characterized in that: The defoamer is one or a combination of silicone defoamer, mineral oil defoamer or polyether defoamer.

7. The weather-resistant corundum paste-like tile adhesive for interior and exterior walls according to claim 1, characterized in that: The thickener is hydroxyethyl cellulose.

8. The weather-resistant corundum paste-like tile adhesive for interior and exterior walls according to claim 1, characterized in that: The antifreeze agent is glycerol, propylene glycol and sodium sulfate in a mass ratio of (1.2-3.5):(3.8-5.3):

10.

9. The method for preparing a weather-resistant corundum paste-like tile adhesive for interior and exterior walls according to claim 1, characterized in that: The following steps are involved: (1) Activation and dispersion: Add the polymer emulsion into the reactor and activate it by ultrasonication at a frequency of 20-30 kHz for 3-5 minutes, then stir at 300-500 rpm for 5-10 minutes to make it uniform, then add the dispersant by ultrasonication at a frequency of 10-15 kHz and stirring, and treat for 3-5 minutes to ensure dissolution and dispersion; (2) Mixing and defoaming treatment: cement, corundum and filler are gradually added to the above-mentioned reaction kettle, first stirred at a low speed of 500-600 rpm for 3-5 minutes, then increased to 800-1000 rpm and stirred for 10-15 minutes to fully mix them with the polymer emulsion, then added with defoamer, and at the same time, vacuum is turned on to -0.05 to -0.08 MPa, and stirred for 8-10 minutes to eliminate bubbles to obtain a preliminary mixed material; (3) Addition of functional agent: After mixing the antioxidant components in proportion, use a high-energy ball mill for 10-15 minutes to refine the particle size and compound, then add the preliminary mixed material and antifreeze agent at the same time, stir at 500-800 rpm for 8-12 minutes to ensure uniform dispersion, add antifungal agent, and continue stirring for 5-8 minutes. (4) Thickening treatment: Slowly add the thickener and deionized water to the above mixture, adjust the stirring speed to 200-400 rpm, and stir for 10-15 minutes.

10. The weather-resistant corundum paste-like tile adhesive for interior and exterior walls according to claim 1, characterized in that: In the activation dispersion of step (1), microwave radiation with a power of 50-100 W is first performed for 2-5 minutes before ultrasound.

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