Ceramic tile glue

Abstract

The invention relates to the technical field of adhesives, in particular to a ceramic tile adhesive which comprises the following raw materials in percentage by mass: 60-67.5% of common sand, 31.8-39.3% of a cementing material, 0.2-0.5% of cellulose ether and 0.5-1% of an additive. The ceramic tile adhesive provided by the invention has excellent bonding strength and technical reliability, and is suitable for popularization and application.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gelling agent, and particularly relates to a ceramic tile glue. BACKGROUND

[0002] With the rapid development of lithium battery industry, the production of solid waste-lithium residue generated in the process of extracting lithium salt from lithium ore has increased sharply. The accumulation of a large amount of lithium residue not only occupies valuable land resources, but also may cause potential pollution to the ecological environment such as soil and water. At present, the resource utilization of lithium residue has become a research hotspot. Some studies show that it has certain application potential in the field of building materials, such as being used as cement admixture or concrete admixture. However, these application methods have problems such as low added value and limited lithium residue consumption, and efficient utilization methods need to be developed urgently.

[0003] In the field of building decoration, ceramic tiles have become a common decorative material due to their aesthetic appearance, durability, and easy cleaning, and the performance of ceramic tile glue directly determines the quality of ceramic tile paving. The traditional on-site mixing cement mortar bonding method has problems such as material waste, increased construction layer thickness, and increased building load. Moreover, its bonding performance and anti-aging performance are poor, and under the influence of temperature and humidity changes and base deformation, ceramic tiles are prone to fall off, threatening the aesthetics of buildings and the safety of pedestrians.

[0004] With the development of the construction industry, although dry powder mortar type ceramic tile adhesives have been widely used due to their good bonding strength and convenient construction, they still have many shortcomings. In the face of the paving needs of large-size ceramic tiles, heavy stone materials, and special base (such as flue, lightweight masonry, etc.), the bonding strength of some ceramic tile adhesives is insufficient, and they cannot provide effective bonding force, which may cause hollowing and falling off. In complex building structures and diverse base environments, the rigidity of ceramic tile adhesives is high, and their flexibility is poor, which cannot adapt to base deformation, causing stress concentration and leading to ceramic tile falling off. In humid, outdoor, and other special environments, the water resistance and weather resistance of some ceramic tile adhesives are not good, and they may be eroded and cracked for a long time, which weakens the bonding strength.

[0005] In addition, the construction process also affects the bonding effect of ceramic tile adhesives. Some ceramic tile adhesives have complex construction processes and high technical requirements for construction personnel. Improper stirring, water adding, and smearing operations may reduce their performance. The drying time of some ceramic tile adhesives is greatly affected by environmental temperature and humidity, and uncertain air-drying time may cause the bonding performance of ceramic tiles to be suboptimal when they are bonded, further increasing the risk of ceramic tile falling off.

[0006] In summary, it is of great practical significance and broad market prospect to develop a ceramic tile adhesive with better performance, which can not only solve the shortcomings of existing ceramic tile adhesives in bonding strength, flexibility, water resistance, and weather resistance, but also realize efficient resource utilization of lithium residue. SUMMARY

[0007] In order to solve the above technical problems, the present application provides a new type of ceramic tile glue, which overcomes the problems of easy hollowing and falling off of the ceramic tile glue in the prior art and poor construction process adaptability.

[0008] In one aspect, the present application provides a ceramic tile glue, which comprises the following raw materials in mass percentage:

[0009] Common sand 60~67.5%,

[0010] Cementitious material 31.8~39.3%,

[0011] Cellulose ether 0.2~0.5%,

[0012] Additive 0.5~1%.

[0013] The present application uses common sand as the main raw material, which is widely available and low in cost; the cementitious material provides strong adhesive force and can effectively prevent the ceramic tile from hollowing and falling off; the reasonable proportioning of the common sand and the cementitious material improves the overall strength of the cured ceramic tile glue and forms a stable adhesive layer, thereby improving the long-term deformation resistance.

[0014] Further, the common sand is one of river sand and mountain sand.

[0015] Further, the cementitious material comprises the following components in mass percentage: 20~40% lithium slag, 30~60% mineral powder, 2~5% gypsum, 10~30% cement clinker, 1~5% lime, and 2~10% early strength agent.

[0016] In the preparation of the ceramic tile glue, the lithium slag is used as the main component in the cementitious material, and the lithium slag, an industrial solid waste, is reasonably utilized.

[0017] Further, the additive comprises at least one of an antibacterial agent and a water-retaining agent.

[0018] Further, the antibacterial agent is at least one of chitosan, quaternary ammonium salt, and silver-based antibacterial agent. The addition of the antibacterial agent in the ceramic tile glue can effectively inhibit the growth of bacteria, so that the ceramic tile glue can be applied to places with high sanitary requirements.

[0019] Further, the cellulose ether is hydroxypropyl methyl cellulose or methyl cellulose. The hydroxyl groups in the cellulose ether form hydrogen bonds with water molecules, thereby achieving thickening and water-retaining effects, improving the viscosity of the ceramic tile glue, enhancing the anti-sagging ability, and ensuring the flatness of the vertical tiling of the ceramic tile.

[0020] Further, the early strength agent is at least one of water glass and sulphoaluminate cement, calcium formate, A50 above aluminate cement, and lithium carbonate.

[0021] Further, the water glass is liquid water glass or solid water glass powder.

[0022] Further, the ore powder is granulated blast furnace ore powder S95 ore powder and above grade, and the specific surface area is 450-600 m 2 / kg.

[0023] Further, the gypsum is one of desulfurization gypsum, titanium gypsum, fluorine gypsum, phosphor gypsum, citric acid gypsum and natural gypsum.

[0024] Further, the cementing material is prepared by mixing 20-40% lithium slag, 30-60% ore powder, 2-5% gypsum, 10-30% cement clinker and 1-5% lime, grinding to 500-600 meshes, drying, and adding 2-10% early strength agent.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] The ceramic tile glue provided by the present application takes ordinary sand and cementing material prepared from lithium slag as core raw materials, realizes high proportion of resource utilization of lithium slag industrial solid waste, effectively alleviates the pressure of solid waste disposal, and has the advantages that the added ordinary sand is widely available and low in cost, the production cost of the ceramic tile glue is reduced, the reasonable proportioning of the gypsum and early strength agent in the added cementing material enables the ceramic tile glue to be shortened from the conventional 8 hours to about 6 hours, the reasonable proportioning of the artificial sand and the cementing material effectively avoids the quality problems such as cracking and hollowing of the bonding layer caused by too fast water evaporation, and significantly prolongs the service life of the ceramic tile glue. The ceramic tile glue prepared by the present application has excellent bonding strength and technical reliability, and is suitable for popularization and use. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0028] A ceramic tile glue comprises the following raw materials in mass percentage:

[0029] ordinary sand 60-67.5%,

[0030] cementing material 31.8-39.3%,

[0031] cellulose ether 0.2-0.5%,

[0032] additive 0.5-1%.

[0033] In specific embodiments, the common sand includes the following ingredients by mass percentage: the common sand is one of river sand and mountain sand.

[0034] In specific embodiments, the cementitious material includes the following ingredients by mass percentage: 20-40% lithium slag, 30-60% mineral powder, 2-5% gypsum, 10-30% cement clinker, 1-5% lime, and 0-10% early strength agent.

[0035] In specific embodiments, the additive includes at least one of an antibacterial agent and a water-retaining agent.

[0036] In specific embodiments, the lithium slag has a bulk density of 1.0-1.2 g / cm 3 , and a specific surface area of 400-600 m 2 / kg.

[0037] In specific embodiments, the early strength agent is at least one of water glass, A50 or above sulfur aluminum cement, and lithium carbonate.

[0038] In specific embodiments, the water glass is liquid water glass or solid water glass powder.

[0039] In specific embodiments, the mineral powder is granulated blast furnace mineral powder S95 or above, and has a specific surface area of 450-600 m 2 / kg.

[0040] In specific embodiments, the gypsum is one of desulfurization gypsum, titanium gypsum, fluorine gypsum, phosphorus gypsum, citric acid gypsum, and natural gypsum.

[0041] In specific embodiments, the cementitious material is prepared by mixing 20-40% lithium slag, 30-60% mineral powder, 2-5% gypsum, 10-30% cement clinker, and 1-5% lime, grinding to 500-600 mesh, drying, and adding 2-10% early strength agent.

[0042] Example 1

[0043] Prepare each raw material according to the following formulation, and then mix uniformly to obtain a ceramic tile glue;

[0044] The specific mass ratio of each raw material of the ceramic tile glue of this example is as follows:

[0045] Common sand 67.5 kg,

[0046] Cementitious material 31.8 kg,

[0047] Hydroxypropyl cellulose 0.2 kg,

[0048] Chitosan 0.5 kg;

[0049] The cementing material is prepared by the following method, specifically as follows:

[0050] 30% lithium slag, 45% mineral powder, 5% gypsum, 10% cement clinker, 5% lime are mixed, ground to 500 mesh, dried, and 5% sulphoaluminate cement is added.

[0051] Example 2

[0052] The raw materials are prepared according to the following formula, and the ceramic tile adhesive is obtained by uniformly mixing the raw materials.

[0053] The specific mass ratio of each raw material of the ceramic tile adhesive of the present example is as follows:

[0054] Common sand 60kg,

[0055] Cementing material 38.5kg,

[0056] Methyl cellulose 0.5kg,

[0057] Quaternary ammonium salt 1kg;

[0058] The cementing material is prepared by the following method, specifically as follows:

[0059] 20% lithium slag, 60% mineral powder, 2% gypsum, 12% cement clinker, and 1% lime are mixed, ground to 500 mesh, dried, and 5% water glass is added.

[0060] Example 3

[0061] The raw materials are prepared according to the following formula, and the ceramic tile adhesive is obtained by uniformly mixing the raw materials.

[0062] The specific mass ratio of each raw material of the ceramic tile adhesive of the present example is as follows:

[0063] Common sand 64.3kg,

[0064] Cementing material 34.5kg,

[0065] Hydroxypropyl cellulose 0.5kg,

[0066] Chitosan 0.7kg;

[0067] The cementing material is prepared by the following method, specifically as follows:

[0068] 40% lithium slag, 30% mineral powder, 5% gypsum, 20% cement clinker, and 3% lime are mixed, ground to 500 mesh, dried, and 2% water glass is added.

[0069] Example 4

[0070] The raw materials are prepared according to the following formula, and the ceramic tile adhesive is obtained by uniformly mixing the raw materials.

[0071] The specific mass ratio of each raw material of the tile glue of the embodiment is as follows:

[0072] Common sand 60kg,

[0073] Cementing material 39.3kg,

[0074] Hydroxypropyl cellulose 0.2kg,

[0075] Chitosan 0.5kg;

[0076] The cementing material is prepared by the following method, specifically:

[0077] 27% lithium slag, 30% mineral powder, 2% gypsum, 30% cement clinker, lime 1% are mixed, ground to 500 mesh, dried, and 5% water glass and 5% sulphoaluminate cement are added.

[0078] Comparative Example 1

[0079] Prepare each raw material according to the following formula, and then mix and stir uniformly to obtain the tile glue.

[0080] The specific mass ratio of each raw material of the tile glue of the comparative example is as follows:

[0081] 42.5 cement 0.28kg,

[0082] Quartz sand 0.65kg,

[0083] Fly ash 70kg,

[0084] Hydroxypropyl methyl cellulose ether 0.0018kg.

[0085] The tile glues of Examples 1-4 and Comparative Example 1 are detected by the detection method of tile glue in JC / T547-2017 "Ceramic Wall and Floor Tile Adhesive", and the results are shown in Table 1.

[0086] Table 1

[0087] Item Tensile adhesive strength (Mpa) Tensile adhesive strength after water immersion (Mpa) Tensile adhesive strength after heat aging (Mpa) Tensile adhesive strength after freeze-thaw cycle (Mpa) Tensile adhesive strength after standing for 20 min (Mpa) Example 1 0.8 0.6 0.8 0.6 0.65 Example 2 1.2 1.1 1.1 0.8 0.9 Example 3 1.3 1.1 1.2 0.9 1.0 Example 4 0.9 0.7 0.8 0.7 0.7 Comparative Example 1 0.4 0.3 0.3 0.2 0.1

[0088] As can be seen from the comparison of Examples 1-4 and Comparative Example 1 in Table 1, the tile glue of the present application has significant advantages in various performance tests, excellent bonding strength and technical reliability, and is suitable for popularization and use.

[0089] The above has further described the present application with the aid of specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present application, and various modifications made by those skilled in the art after reading the above description of the embodiments all fall within the scope of the present application.

Claims

1. A tile adhesive, characterized in that: The raw materials include the following percentages by weight: Ordinary sand 60~67.5%, Cementitious materials 31.8~39.3%, Cellulose ether 0.2~0.5%, Additives 0.5~1%.

2. The tile adhesive according to claim 1, characterized in that The ordinary sand is one of river sand and mountain sand.

3. The tile adhesive according to claim 1, characterized in that The cementitious material comprises the following components in percentage by mass: 20-40% lithium slag, 30-60% mineral powder, 2-5% gypsum, 10-30% cement clinker, 1-5% lime, and 2-10% early strength agent.

4. The tile adhesive according to claim 1, characterized in that The additive includes at least one of an antibacterial agent and a water-retaining agent.

5. The tile adhesive according to claim 3, characterized in that: The bulk density of the lithium slag is 1.0-1.2 g / cm 3 , with a specific surface area of ​​400~600m 2 / kg.

6. The tile adhesive according to claim 3, characterized in that: The early strength agent is at least one of water glass, sulfoaluminum cement, calcium formate, aluminate cement above A50, and lithium carbonate.

7. The tile adhesive according to claim 6, characterized in that: The water glass is liquid water glass or solid water glass powder.

8. The tile adhesive according to claim 3, characterized in that: The ore powder is granulated blast furnace ore powder S95 or above, with a specific surface area of ​​450~600m 2 / kg.

9. The tile adhesive according to claim 3, characterized in that: The gypsum is one of desulfurized gypsum, titanium gypsum, fluorinated gypsum, phosphogypsum, citric acid gypsum and natural gypsum.

10. The tile adhesive according to claim 3, characterized in that: The cementitious material is prepared by the following method: 20-40% lithium slag, 30-60% mineral powder, 2-5% gypsum, 10-30% cement clinker, and 1-5% lime are mixed, ground to 500-600 mesh, dried, and 2-10% early strength agent is added.