Two-component carbon-based interface agent for tile paving interface treatment as well as preparation method and application of two-component carbon-based interface agent

Abstract

The invention belongs to the technical field of building materials, and particularly relates to a two-component carbon-based interface agent for ceramic tile paving interface treatment and a preparation method and application of the two-component carbon-based interface agent. The coating is prepared from the following raw materials: 18 to 20 parts of epoxy resin, 8 to 10 parts of glycidyl ether, 0.2 to 0.7 part of polyether amine A, 1 to 3 parts of gamma-aminopropyltrimethoxysilane, 29 to 32 parts of calcium carbonate and the balance of quartz sand. The component B is prepared from the following raw materials in parts by weight: 18 to 20 parts of polyether amine B, 1 to 3 parts of polyether amine C, 5 to 7 parts of epoxy resin, 1 to 3 parts of benzyl alcohol, 0.1 to 0.3 part of blue paste, 29 to 32 parts of calcium carbonate and the balance of quartz sand. The interface agent prepared by the invention has good water resistance, temperature resistance and environmental protection property, can be directly subjected to wet-on-wet interface fusion bonding with cement mortar, and has good interface bonding property and aging resistance.

Description

Technical Field

[0001] The invention belongs to the technical field of building materials, and particularly relates to a two-component carbon-based interface agent for treating the interface of tile paving, and a preparation method and application thereof. Background Art

[0002] In recent years, with the continuous upgrading of ceramic tiles, large-format tiles with low water absorption, high density, and no porosity have become popular on the market. However, directly using cement mortar or cement-based tile adhesive to lay these tiles often fails to form a mechanical anchoring force, which can easily lead to hollowing or even tile falling. In view of this, during the tile laying process, interface agents are often used to treat the tile interface, and various types of interface agents have been widely studied.

[0003] For example, patent CN102432335B discloses a polymer emulsion interface agent for coating base treatment and its preparation method. The interface agent consists of component A and component B, which are mixed in a weight ratio of 1:1 when used. The component A is calculated as follows: 0.1-0.5% hydroxyethyl cellulose; 0.2-0.9% dispersing wetting agent; 12-19% quartz powder; 48-65% styrene and acrylic ester polymer emulsion; 0.05-0.35% preservative; 0.01-0.2% mildewproof agent; 0.05-0.25% multifunctional additive; 0.05-0.55% thickener; 0.1-0.5% defoaming agent; 0.2-0.7% film-forming agent; 18-35% water; the component B is calculated as follows: 20-38% wollastonite powder; 15-35% quartz powder; and 38-55% quartz sand. Components A and B are combined in a specific ratio before use. This water-based interface agent requires a strictly controlled air-drying time, requiring the next paving process to proceed only after the agent has dried and formed a film. It cannot be applied wet-on-wet with cement mortar, making its application more complex. Furthermore, its adhesion is susceptible to failure in hot and humid environments. Patent CN117343603B discloses a water-based interface agent, its preparation method, and a waterproofing layer material. The interface agent comprises 10%-15% petroleum resin, 1%-3% rosin resin, 6%-10% thermoplastic rubber, 20%-24% organic solvent, 6.4%-13% first additive, 45%-55% water, and 0.6%-1.0% emulsifier, based on the weight of the interface agent. The weight ratio of the petroleum resin, rosin resin, and thermoplastic rubber is 1:0.1-0.2:0.6-0.8. The petroleum resin used in this invention is derived from petroleum, which is a non-renewable resource and easily produces volatile organic compounds, which are harmful to the health of construction workers. At the same time, wet-on-wet construction is also not possible, and the bonding strength is easily reduced in high temperature and humid environments.

[0004] Therefore, there is an urgent need on the market for an interface agent with high bonding strength, easy construction and the ability to effectively reduce volatile organic compounds. Summary of the Invention

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a two-component carbon-based interface agent for tile paving interface treatment and a preparation method thereof. The interface agent prepared by the present invention has good bonding properties and can be laid without waiting for curing and drying. It is easy to use, does not harm the health of the construction workers, and is green and environmentally friendly.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A first aspect of the present invention provides a two-component carbon-based interface agent for tile paving interface treatment, comprising component A and component B, wherein component A, calculated per 100 parts by weight, comprises the following raw materials: 18-20 parts of epoxy resin, 8-10 parts of glycidyl ether, 0.2-0.7 parts of polyetheramine A, 1-3 parts of γ-aminopropyltrimethoxysilane, 29-32 parts of calcium carbonate, and the balance is quartz sand; component B, calculated per 100 parts by weight, comprises the following raw materials: 18-20 parts of polyetheramine B, 1-3 parts of polyetheramine C, 5-7 parts of epoxy resin, 1-3 parts of benzyl alcohol, 0.1-0.3 parts of blue paste, 29-32 parts of calcium carbonate, and the balance is quartz sand.

[0008] The present invention prepares a two-component carbon-based interface agent for tile paving interface treatment by the mutual coordination of epoxy resin, polyetheramine and other additives. The two-component carbon-based interface agent has good water resistance and temperature resistance, can be directly bonded with cement mortar by wet-on-wet interface fusion, and has good interface adhesion and aging resistance.

[0009] In some embodiments, the epoxy resin is E51 epoxy resin.

[0010] In some embodiments, the glycidyl ether is a combination of dodecyl glycidyl ether and 1,4-butanediol diglycidyl ether.

[0011] Preferably, the mass ratio of the dodecyl glycidyl ether to the 1,4-butanediol diglycidyl ether is 1:(0.3-0.6).

[0012] The present invention selects a combination of monofunctional and difunctional glycidyl ethers, which has a good dilution effect, can increase the amount of filler used, reduce the use of chemicals, is highly environmentally friendly, and saves costs. In addition, it solves the problem that the viscosity of the component A is too high and difficult to construct due to the addition of polyetheramine A to extend the chain of the epoxy resin. At the same time, it has a certain toughening effect on the epoxy resin, increases the water resistance of the interface agent, and improves the bonding strength.

[0013] In some embodiments, the polyetheramine A is a monofunctional polyetheramine.

[0014] The present invention adds polyetheramine A to component A and utilizes polyetheramine A to extend the chain of the epoxy resin in component A, thereby changing the polarity of the epoxy resin and enhancing the hydrophilicity of the epoxy resin. During use, the compatibility with cement mortar is enhanced, and the tile can be scraped and pasted immediately. The cured interface agent can be tightly bonded with the tiles and cement mortar, thereby improving durability.

[0015] In some embodiments, the polyetheramine C is a difunctional polyetheramine.

[0016] Further preferably, the polyetheramine A is amino-terminated polyether ZM-1207, purchased from Zibo Zhengda Polyurethane Co., Ltd.

[0017] Further preferably, the polyetheramine C is amino-terminated polyether ZD-123, purchased from Zibo Zhengda Polyurethane Co., Ltd.

[0018] In some embodiments, the preparation method of the polyetheramine B comprises the following steps:

[0019] (1) PPG is added to DMF, and then added to thionyl chloride while stirring, and the mixture is reacted at -3 to 3°C for 3 to 5 hours, and then distilled to obtain chlorinated PPG;

[0020] (2) adding the chlorinated PPG obtained in step (1) to DMF, N-methylallylamine, and pyridine, and reacting at 75-85° C. for 5-7 hours to obtain a polymer;

[0021] (3) Under nitrogen protection, 1-hexene-1-amine and an initiator are added to a solvent, and the mixture is reacted at 70-80° C. for 20-30 min. The polymer obtained in step (2) is then added and the reaction is continued for 20-30 min. Vinyltrimethoxysilane is then added and the reaction is continued for 20-30 min. Finally, crotylamine is added and the reaction is continued for 50-60 min to obtain polyetheramine B.

[0022] Preferably, the mass ratio of the chlorinated PPG to N-methylallylamine in step (2) is 1:(0.31-0.45).

[0023] In order to further improve the adhesion of epoxy resin interface agents, the applicant prepared a polyetheramine B that can not only improve the flexibility and bonding strength of epoxy resin interface agents, but also reduce the risk of cracking of the interface layer. The possible reason is that a large number of flexible segments in polyetheramine B can penetrate into the microporous structure of cement mortar, enhancing the bonding ability of cement mortar and interface agent. In addition, during the curing process of cement mortar, the siloxane in polyetheramine B can react chemically with the hydration products of cement mortar used for paving and the hydroxyl groups on the surface of the ceramic tile to form a strong chemical bond. In addition, the unique molecular structure of polyetheramine B can cooperate with cement mortar for wet-on-wet construction. It can be scraped and applied immediately without waiting for drying, so that the cement mortar, interface agent and ceramic tile can be tightly bonded, effectively improving construction efficiency, and solving the problem of poor compatibility between traditional epoxy resin interface agents and cement mortar for wet-on-wet construction, low bonding strength, easy aging, and causing ceramic tile hollowing and falling off. In addition, the introduction of silicon in the molecular structure of polyetheramine B can further enhance the aging resistance of the interface agent.

[0024] In some embodiments, the mass ratio of the polymer to vinyltrimethoxysilane in step (3) is 1:(0.15-0.24).

[0025] In some embodiments, the mass ratio of the polymer to 5-hexen-1-amine in step (3) is 1:(0.25-0.32).

[0026] In some embodiments, the mass ratio of the polymer to crotylamine in step (3) is 1:(0.1-0.3).

[0027] The present invention increases the flexibility of the interface agent by limiting the ratio of polymer, vinyltrimethoxysilane, 5-hexen-1-amine and crotylamine, can effectively release the internal stress caused by thermal expansion and contraction of the base layer, avoid the phenomenon of hollowing and falling of tiles during temperature changes, and can enhance the aging resistance and water resistance of the interface agent.

[0028] In addition, the addition of epoxy resin to component B of the present invention not only promotes compatibility with component A, but also enables component B to form a prepolymer, thereby reducing the generation of free amines, reducing odor, and improving environmental friendliness.

[0029] A second aspect of the present invention provides a method for preparing a two-component carbon-based interface agent for tile paving interface treatment, comprising the following steps:

[0030] S1. Preparation of component A: Mix epoxy resin, glycidyl ether, polyetheramine A, and γ-aminopropyltrimethoxysilane, react at 70-80°C for 6-8 hours, then add calcium carbonate and quartz sand and continue stirring for 30-40 minutes to obtain the product;

[0031] S2. Preparation of component B: stir polyetheramine B, polyetheramine C, epoxy resin and benzyl alcohol at 70-80°C for 6-8h, then add calcium carbonate, quartz sand and blue slurry, and continue stirring for 30-40min to obtain the product.

[0032] A third aspect of the present invention provides an application of a two-component carbon-based interface agent for treating the interface of tile paving, wherein component A and component B are mixed during use.

[0033] Preferably, the mass ratio of component A to component B is 1:1.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present invention prepares a two-component carbon-based interface agent for tile paving interface treatment with high bonding strength, good water resistance, temperature resistance and environmental protection through the mutual coordination of epoxy resin, polyetheramine, glycidyl ether and other additives. The agent can be directly bonded with cement mortar by wet-on-wet interface fusion and has good interface adhesion and aging resistance.

[0036] 2. The interface agent prepared by the present invention can play the role of double-sided interface bonding for the bonding base and the adherend. Through the synergistic effect of the specifically selected polyetheramine and silyl methoxy groups in the components, it reacts with the hydration products of tiles and cement mortar to form a silicon-oxygen covalent bond cross-linked network. At the same time, it has a combination of four bonding forces: chemical bonds, van der Waals forces, hydrogen bonds, and mechanical anchoring. It solves the problems of traditional interface agents that use the van der Waals force and hydrogen bond bonding principles, resulting in low bonding strength and easy failure of bonding in high temperature and humid environments. In addition, the silicon-oxygen bond has a higher bond energy and a lower thermal expansion coefficient, which improves the temperature change resistance, water resistance and aging resistance of the interface agent to a certain extent.

[0037] 3. The present invention selects a combination of monofunctional and difunctional glycidyl ethers, which, on the one hand, has a good dilution effect and saves costs, and on the other hand, solves the problem of excessive viscosity of component A and difficulty in construction, while reducing interfacial tension and improving the adhesion of the interface agent; in addition, by adding polyetheramine A to component A, the hydrophilicity of the epoxy resin is enhanced, and the compatibility with cement mortar is improved, thereby realizing a new process of instant scraping and sticking when wet on wet.

[0038] 4. The polyetheramine B prepared in the present invention can not only penetrate into the microporous structure of cement mortar and enhance the bonding ability between the cement mortar and the interface agent, but also can react with the hydration products of cement mortar and the hydroxyl groups on the surface of the ceramic tile to generate new covalent bonds. It can be applied immediately by wet-on-wet construction process without waiting for drying, thereby effectively improving construction efficiency and solving the problem of insufficient bonding strength of traditional interface agents, easy aging, and causing hollowing and falling of ceramic tiles. DETAILED DESCRIPTION

[0039] The present invention will be described below in conjunction with specific embodiments. It should be noted that the following examples and comparative examples are intended only to illustrate the present invention and are not intended to limit the present invention. Other combinations and various modifications within the scope of the present invention may be made without departing from the spirit or scope of the present invention.

[0040] In order to facilitate those skilled in the art to implement the present invention, some of the raw materials and manufacturers of the embodiments and comparative examples are described as follows:

[0041] The compounds and related reagents used in the following examples and comparative examples can all be purchased from the market. The amino-terminated polyether ZT-143 was purchased from Zibo Zhengda Polyurethane Co., Ltd.; E51 epoxy resin and E44 epoxy resin were both purchased from Nanya Electronic Materials (Kunshan) Co., Ltd.; the particle size of calcium carbonate was 300-400 mesh; and the particle size of quartz sand was 40-80 mesh.

[0042] Preparation Example 1

[0043] The preparation method of polyetheramine B-1 comprises the following steps:

[0044] (1) Add 10 g of PPG-200 to 100 ml of DMF, add 6 g of thionyl chloride while stirring, react at 0 ° C for 4 h, and distill to obtain chlorinated PPG;

[0045] (2) 10 g of the chlorinated PPG obtained in step (1), 3.6 g of N-methylallylamine, and 0.1 g of pyridine were added to 100 ml of DMF and reacted at 80° C. for 6 h to obtain a polymer;

[0046] (3) Nitrogen was passed through the reaction system to remove air. Under nitrogen protection, 3 g of 5-hexen-1-amine and 0.1 g of azobisisobutyronitrile were added to 80 ml of anhydrous toluene, and the mixture was reacted at 75° C. for 25 min. Then, 10 g of the polymer obtained in step (2) was added and the reaction was continued for 25 min. Then, 2 g of vinyltrimethoxysilane was added and the reaction was continued for 25 min. Finally, 2 g of crotylamine was added and the reaction was continued for 55 min. The mixture was distilled under reduced pressure to obtain polyetheramine B-1.

[0047] Preparation Example 2

[0048] The preparation method of polyetheramine B-2 is the same as that of Preparation Example 1, except that the amount of vinyltrimethoxysilane added is 3 g.

[0049] Preparation Example 3

[0050] The preparation method of polyetheramine B-3 is the same as that of Preparation Example 1, except that the amount of 5-hexen-1-amine added is 4 g.

[0051] Example 1

[0052] A two-component carbon-based interface agent for treating the interface of tile paving, comprising component A and component B. Component A, calculated per 100 parts by weight, comprises the following raw materials: 19 parts of E51 epoxy resin, 9 parts of glycidyl ether, 0.5 parts of polyetheramine A, 2 parts of γ-aminopropyltrimethoxysilane, 30 parts of calcium carbonate, with the balance being quartz sand. Component B, calculated per 100 parts by weight, comprises the following raw materials: 19 parts of polyetheramine B-1, 2 parts of polyetheramine C, 6 parts of E51 epoxy resin, 2 parts of benzyl alcohol, 0.2 parts of blue paste, 30 parts of calcium carbonate, with the balance being quartz sand.

[0053] The glycidyl ether is a composition of dodecyl glycidyl ether and 1,4-butanediol diglycidyl ether, and the mass ratio of the two is 1:0.5.

[0054] The preparation method of the two-component carbon-based interface agent for tile paving interface treatment in this embodiment comprises the following steps:

[0055] Preparation of component S1: Mix E51 epoxy resin, glycidyl ether, polyetheramine A, and γ-aminopropyltrimethoxysilane, react at 75°C for 7 hours, then add calcium carbonate and quartz sand and continue stirring for 35 minutes to obtain component A.

[0056] Preparation of S2, component B: polyetheramine B-1, polyetheramine C, E51 epoxy resin, and benzyl alcohol were stirred at 75°C for 7 hours, then calcium carbonate, quartz sand, and blue slurry were added, and stirring was continued for 35 minutes to obtain the product.

[0057] Example 2

[0058] A two-component carbon-based interface agent for treating the interface of tile paving, comprising component A and component B. Component A, calculated per 100 parts by weight, comprises the following raw materials: 18 parts of E51 epoxy resin, 8 parts of glycidyl ether, 0.2 parts of polyetheramine A, 1 part of γ-aminopropyltrimethoxysilane, 29 parts of calcium carbonate, with the balance being quartz sand; and component B, calculated per 100 parts by weight, comprises the following raw materials: 18 parts of polyetheramine B-1, 1 part of polyetheramine C, 5 parts of E51 epoxy resin, 1 part of benzyl alcohol, 0.1 part of blue paste, 29 parts of calcium carbonate, with the balance being quartz sand.

[0059] The glycidyl ether is a composition of dodecyl glycidyl ether and 1,4-butanediol diglycidyl ether, and the mass ratio of the two is 1:0.3.

[0060] The preparation method of the two-component carbon-based interface agent for tile paving interface treatment in this embodiment comprises the following steps:

[0061] Preparation of component S1: Mix E51 epoxy resin, glycidyl ether, polyetheramine A, and γ-aminopropyltrimethoxysilane, react at 70°C for 8 hours, then add calcium carbonate and quartz sand and continue stirring for 30 minutes to obtain component A.

[0062] Preparation of S2, component B: polyetheramine B-1, polyetheramine C, E51 epoxy resin, and benzyl alcohol were stirred at 70°C for 8 hours, then calcium carbonate, quartz sand, and blue slurry were added, and stirring was continued for 30 minutes to obtain the product.

[0063] Example 3

[0064] A two-component carbon-based interface agent for treating the interface of tile paving, comprising component A and component B. Component A, calculated per 100 parts by weight, comprises the following raw materials: 20 parts of E51 epoxy resin, 10 parts of glycidyl ether, 0.7 parts of polyetheramine A, 3 parts of γ-aminopropyltrimethoxysilane, 32 parts of calcium carbonate, with the balance being quartz sand. Component B, calculated per 100 parts by weight, comprises the following raw materials: 20 parts of polyetheramine B-1, 3 parts of polyetheramine C, 7 parts of E51 epoxy resin, 3 parts of benzyl alcohol, 0.3 parts of blue paste, 32 parts of calcium carbonate, with the balance being quartz sand.

[0065] The glycidyl ether is a composition of dodecyl glycidyl ether and 1,4-butanediol diglycidyl ether, and the mass ratio of the two is 1:0.6.

[0066] The preparation method of the two-component carbon-based interface agent for tile paving interface treatment in this embodiment comprises the following steps:

[0067] Preparation of component S1: Mix E51 epoxy resin, glycidyl ether, polyetheramine A, and γ-aminopropyltrimethoxysilane, react at 80°C for 6 hours, then add calcium carbonate and quartz sand and continue stirring for 40 minutes to obtain the product;

[0068] Preparation of S2, component B: polyetheramine B-1, polyetheramine C, E51 epoxy resin, and benzyl alcohol were stirred at 80°C for 6 hours, then calcium carbonate, quartz sand, and blue slurry were added, and stirring was continued for 40 minutes to obtain the product.

[0069] Example 4

[0070] A two-component carbon-based interface agent for treating the interface of tile paving and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that an equal amount of polyetheramine B-1 is replaced by polyetheramine B-2.

[0071] Example 5

[0072] A two-component carbon-based interface agent for treating the interface of tile paving and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that an equal amount of polyetheramine B-1 is replaced by polyetheramine B-3.

[0073] Example 6

[0074] A two-component carbon-based interface agent for treating the interface of tile paving and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that an equal amount of polyetheramine B-1 is replaced by amino-terminated polyether ZT-143.

[0075] Example 7

[0076] A two-component carbon-based interface agent for tile paving interface treatment and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that an equal amount of E51 epoxy resin is replaced by E44 epoxy resin.

[0077] Example 8

[0078] A two-component carbon-based interface agent for tile paving interface treatment and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that the polyetheramine A is an amino-terminated polyether ZM-1207 purchased from Zibo Zhengda Polyurethane Co., Ltd.

[0079] Example 9

[0080] A two-component carbon-based interface agent for tile paving interface treatment and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that the polyetheramine A is amino-terminated polyether ZD-140 purchased from Zibo Zhengda Polyurethane Co., Ltd.

[0081] Performance Testing

[0082] 1. The interface agent component A and component B obtained in each example were mixed in proportion and the following test was performed according to the requirements of the determination method of shear bond strength of R-type reactive resin adhesive in the standard JC / T547-2017 "Ceramic Tile Adhesive". The mass ratio of component A to component B in Examples 1-9 was 1:1, and the components in Example 10 and Example 11 were the same as in Example 1, except that the mass ratio of component A to component B in Example 10 was 1:0.9, and the mass ratio of component A to component B in Example 11 was 1:1.1:

[0083] Table 1

[0084]

[0085] The test results are shown in Table 2.

[0086] Table 2

[0087]

[0088] Comparison of the experimental data of Examples 1-3 in Table 2 shows that the interface agent has good bonding strength, water resistance, temperature resistance and environmental protection. Comparison of Example 4 with Example 1 shows that the change in the ratio of polymer to vinyltrimethoxysilane may cause polyetheramine B to easily migrate to the interface, resulting in uneven curing and decreased adhesion. Comparison of Example 5 with Example 1 shows that the change in the ratio of polymer to 5-hexene-1-amine may result in excessive amine and excessive hydrophilicity of the interface agent, thereby reducing the water resistance of the interface agent. Comparison of Example 6 with Example 1 shows that replacing an equal amount of polyetheramine B-1 with The amino-terminated polyether ZT-143 may not react completely, resulting in a decrease in the water resistance and heat resistance of the interface agent; a comparison between Example 7 and Example 1 shows that when the E51 epoxy resin is replaced with E44 epoxy resin in equal amounts, the various properties of the interface agent are reduced; a comparison between Examples 8 and 9 and Example 1 shows that the change in the model of polyetheramine A and polyetheramine C may lead to a change in the molecular weight or cross-linking degree of the interface agent, and the various properties of the interface agent are reduced; a comparison between Example 10 and Example 11 and Example 1 shows that the change in the ratio of component A to component B causes the various properties of the interface agent to decrease.

[0089] 2. The interface agent obtained in Examples 1-3 was applied to the concrete surface and the tile surface, respectively, with a coating thickness of 0.5 mm to obtain a concrete interface agent layer and a tile interface agent layer. The concrete interface agent layer and the tile interface agent layer were bonded by 42.5 cement. The bonding strength of the interface agent and cement or tile was then tested in accordance with the requirements for the determination of tensile bond strength of Class C cement-based adhesives in the standard JC / T547-2017 "Ceramic Tile Adhesives". The test results are shown in Table 3:

[0090] Table 3

[0091]

[0092] The data in Table 3 show that the interface agents obtained in Examples 1-3 have good tensile adhesion. After the above tests were completed, it was found that all tensile fracture failures occurred in the form of cement cohesive failure. The cement layer still remained intact on the surface of the concrete interface agent layer and the surface of the tile interface agent layer. The cement cohesive failure indicates that there is good adhesion between the concrete, the interface agent and the cement, and between the tile and the interface agent and the cement. This shows that the use of this interface agent greatly improves the bond strength between cement and tile or cement and concrete base.

[0093] 3. The interface agent obtained in Examples 1-3 was tested for lateral deformation according to the lateral deformation determination method in the standard JC / T547-2017 "Ceramic Tile Adhesives". The test results are shown in Table 4:

[0094] Table 4

[0095]

[0096] It can be seen from the data in Table 4 that the interface agent obtained in Examples 1-3 has a higher lateral deformation value, which shows that the interface agent has good flexibility. During application, it can effectively release the internal stress generated during the thermal expansion and contraction of the base layer or tiles, thereby greatly reducing the risk of hollowing and falling of tiles.

[0097] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A two-component carbon-based interface agent for tile paving interface treatment, characterized in that: The invention comprises component A and component B, wherein component A, calculated based on 100 parts by weight, comprises the following raw materials: 18-20 parts of epoxy resin, 8-10 parts of glycidyl ether, 0.2-0.7 parts of polyetheramine A, 1-3 parts of γ-aminopropyltrimethoxysilane, 29-32 parts of calcium carbonate, and the balance is quartz sand; and component B, calculated based on 100 parts by weight, comprises the following raw materials: 18-20 parts of polyetheramine B, 1-3 parts of polyetheramine C, 5-7 parts of epoxy resin, 1-3 parts of benzyl alcohol, 0.1-0.3 parts of blue paste, 29-32 parts of calcium carbonate, and the balance is quartz sand.

2. The two-component carbon-based interface agent for tile paving interface treatment according to claim 1, characterized in that: The epoxy resin is E51 epoxy resin.

3. The two-component carbon-based interface agent for tile paving interface treatment according to claim 1, characterized in that: The glycidyl ether is a composition of dodecyl glycidyl ether and 1,4-butanediol diglycidyl ether.

4. The two-component carbon-based interface agent for tile paving interface treatment according to claim 1, characterized in that: The polyetheramine A is a monofunctional polyetheramine.

5. The two-component carbon-based interface agent for tile paving interface treatment according to claim 1, characterized in that: The polyetheramine C is a difunctional polyetheramine.

6. The two-component carbon-based interface agent for tile paving interface treatment according to claim 1, characterized in that: The preparation method of the polyetheramine B comprises the following steps: (1) PPG is added to DMF, and then added to thionyl chloride while stirring, and the mixture is reacted at -3 to 3°C for 3 to 5 hours, and then distilled to obtain chlorinated PPG; (2) adding the chlorinated PPG obtained in step (1) to DMF, N-methylallylamine, and pyridine, and reacting at 75-85° C. for 5-7 hours to obtain a polymer; (3) Under nitrogen protection, 5-hexen-1-amine and an initiator are added to a solvent, and the mixture is reacted at 70-80° C. for 20-30 min. The polymer obtained in step (2) is then added and the reaction is continued for 20-30 min. Vinyltrimethoxysilane is then added and the reaction is continued for 20-30 min. Finally, crotylamine is added and the reaction is continued for 50-60 min to obtain polyetheramine B.

7. The two-component carbon-based interface agent for tile paving interface treatment according to claim 6, characterized in that: The mass ratio of the polymer to vinyltrimethoxysilane in step (3) is 1:(0.15-0.24).

8. The two-component carbon-based interface agent for tile paving interface treatment according to claim 6, characterized in that: The mass ratio of the polymer to 5-hexen-1-amine in step (3) is 1:(0.25-0.32).

9. A method for preparing a two-component carbon-based interface agent for tile paving interface treatment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Preparation of component A: Mix epoxy resin, glycidyl ether, polyetheramine A, and γ-aminopropyltrimethoxysilane, react at 70-80°C for 6-8 hours, then add calcium carbonate and quartz sand and continue stirring for 30-40 minutes to obtain the product; S2. Preparation of component B: stir polyetheramine B, polyetheramine C, epoxy resin and benzyl alcohol at 70-80°C for 6-8h, then add calcium carbonate, quartz sand and blue slurry, and continue stirring for 30-40min to obtain the product.

10. A use of the two-component carbon-based interface agent for treating the interface of tile paving according to any one of claims 1 to 8 or the two-component carbon-based interface agent for treating the interface of tile paving obtained by the preparation method according to claim 9, characterized in that: Mix component A and component B when using.

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