Dust-free ceramic tile adhesive and manufacturing method thereof

Abstract

The invention provides a dust-free ceramic tile adhesive and a manufacturing method thereof. The dust-free ceramic tile glue is prepared from the following materials in parts by weight: 360 to 380 parts of cement, 4 to 6 parts of cellulose fiber, 510 to 550 parts of aggregate, 65 to 75 parts of filler, 10 to 11 parts of glue powder, 4.5 to 5.5 parts of early strength agent and 2.5 to 3.5 parts of water-retaining agent. According to the dust-free ceramic tile adhesive introduced with the cellulose fibers, the bonding strength of the ceramic tile adhesive is enhanced, and dust in construction operation is remarkably reduced.

Description

Technical Field

[0001] The present application relates to the field of building materials, and in particular to a dust-free tile adhesive and a manufacturing method thereof. Background Art

[0002] Tile adhesive is mainly used to stick ceramic tiles, tiles, floor tiles and other decorative materials. It is widely used in interior and exterior walls, floors, bathrooms, kitchens, and building decoration places. Its main features are high bonding strength, water resistance, freeze-thaw resistance, good aging resistance and convenient construction. It is an ideal adhesive material.

[0003] At present, the existing types of tile adhesives often generate serious dust during construction, which will have a certain impact on the health of construction workers and the surrounding environment. To address this dust problem, the current conventional treatment methods mainly include dust-free oil spraying technology and paraffin oil spraying technology. However, the introduction of dust-free oil or paraffin oil will reduce the strength of tile adhesives.

[0004] Therefore, there is a need for an improved dust-free tile adhesive and a method for making the same. Summary of the invention

[0005] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of protection of this application.

[0006] The present application provides a dust-free tile adhesive, which is prepared from the following materials. In parts by weight, the materials include 360-380 parts of cement, 4-6 parts of cellulose fiber, 510-550 parts of aggregate, 65-75 parts of filler, 10-11 parts of glue powder, 4.5-5.5 parts of early strength agent and 2.5-3.5 parts of water retaining agent.

[0007] In one embodiment, the material includes 370 parts by weight of cement, 5 parts by weight of cellulose fiber, 537 parts by weight of aggregate, 70 parts by weight of filler, 10.5 parts by weight of rubber powder, 5 parts by weight of early strength agent and 3 parts by weight of water retaining agent.

[0008] In one embodiment, the cellulose fibers have a fiber content of 60 wt % to 90 wt %, an average fiber length of 450 to 550 μm, an average fiber thickness of 25 to 40 μm, and a bulk density of 90 g / l to 140 g / l.

[0009] In one embodiment, the aggregate is selected from one or more of machine-made sand, quartz sand and river sand; optionally, the particle size of the aggregate is 0.1-0.45 mm.

[0010] In one embodiment, the filler is selected from one or more of double fly ash, mineral powder and fly ash; optionally, the particle size of the filler is 60-250 mesh.

[0011] In one embodiment, the cement is one or more of gray cement and white cement.

[0012] In one embodiment, the rubber powder is one or more of a ternary copolymer rubber powder of vinyl acetate, ethylene and higher fatty acid vinyl ester; a copolymer rubber powder of vinyl acetate and higher fatty acid vinyl ester; and a ternary copolymer rubber powder of vinyl acetate, acrylate and higher fatty acid vinyl ester.

[0013] In one embodiment, the early strength agent is one or more of lithium carbonate, calcium formate and sodium sulfate.

[0014] In one embodiment, the water retaining agent is cellulose ether; optionally, the viscosity of the cellulose ether is 10000-100000 mPa·s.

[0015] In one embodiment, the cellulose ether is selected from one or more of methyl cellulose ether, hydroxypropyl methyl cellulose ether and carboxymethyl cellulose ether.

[0016] On the other hand, the present application provides a method for manufacturing the above-mentioned dust-free tile adhesive, comprising the following steps: The filler, rubber powder, early strength agent, water retaining agent and cellulose fiber are mixed and stirred evenly to obtain a premix; The dust-free tile adhesive is obtained by mixing and stirring cement, aggregate and the premix evenly.

[0017] The dust-free tile adhesive formed by introducing cellulose fibers and cooperating with other components in the present application not only has enhanced bonding strength, but also significantly reduces dust during construction operations, reduces air pollution in decoration sites, ensures a clean, environmentally friendly and safe working environment, and protects the health of workers.

[0018] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present application more clear, the embodiments of the present application are described in detail below. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0020] Unless otherwise specified, the materials used in the following examples and comparative examples are all commercially available.

[0021] The cement used in the following embodiments and comparative examples was purchased from Hengyuan Coal Sales Co., Ltd. in Ningguo City, Anhui Province. The main component of the cement is calcium silicate, specification P.II52.5, loss on ignition is less than or equal to 3.5%, sulfur trioxide is less than or equal to 3.5%, magnesium oxide is less than or equal to 5.0%, chloride ion is less than or equal to 0.06%, and specific surface area is greater than or equal to 300 m2 / kg.

[0022] The aggregate used is machine-made sand purchased from Suzhou Bomit Building Materials (Suzhou) Co., Ltd. The particle size of the machine-made sand is 0.1-0.45mm, the mud content is less than or equal to 3.0%, the mud block content is less than or equal to 0.2%, the flaky particles are less than or equal to 10%, and the apparent density is not less than 2500kg / m³.

[0023] The filler used is double fly ash purchased from Suzhou Baomite Building Materials (Suzhou) Co., Ltd. The particle size of the double fly ash is 200-250 mesh, the moisture content is less than or equal to 0.01%, and the volume density is 1100-1300g / L.

[0024] The rubber powder used is purchased from Nanjing Weiluo Chemical Trading Co., Ltd. The specification of the rubber powder is 60W, the ash content is 8.0%-12.0%, the volume density is 400-700g / L, and the pH is 6.5-9.5.

[0025] The water-retaining agent used is hydroxypropyl methylcellulose ether purchased from Shanghai Huiguang Fine Chemical Co., Ltd. The model of the hydroxypropyl methylcellulose ether is GMC1163, and the viscosity is 40000-50000 mPa·s.

[0026] The early strength agent used is calcium formate purchased from Shanghai Dino Chemical Co., Ltd. The calcium formate content is greater than or equal to 98%, the total calcium content is greater than or equal to 30%, the moisture content is less than or equal to 0.5%, and the pH value is 6.5-8.0.

[0027] The cellulose fibers used in Examples 1 and 2 are ARBOCEL produced by JRS of Germany. ® PWC500-66 LD, which is a natural cellulose fiber with 60% cellulose content, 15% maximum oxide ash content (850 C, 4h), pH value of 6-9 (5% suspension), average fiber length of 500 microns, average fiber content of 35 microns, bulk density of 90g / l-140lg / l (according to DIN EN ISO 60).

[0028] The wood fiber used in Comparative Examples 2 and 3 was purchased from Shanghai Ougong Engineering Materials Co., Ltd. The raw material of the wood fiber was wood pulp with a fiber length of 500 microns and a pH value of 7±1.0 (5% suspension).

[0029] Example 1 The machine-made sand is crushed and screened to 0.1-0.45 mm, and the double fly ash is crushed and ground to 200-250 mesh; 70 parts by weight of double fly ash, 10.5 parts by weight of rubber powder, 3 parts by weight of hydroxypropyl methylcellulose ether, 5 parts by weight of calcium formate and 5 parts by weight of cellulose fiber are sequentially added into a blender for premixing, and mixed and stirred evenly to obtain a premix; 370 parts by weight of gray cement, 536.5 parts by weight of machine-made sand, and 93.5 parts by weight of premix are sequentially added into a mixer and mixed and stirred evenly to obtain cement-based tile adhesive.

[0030] Example 2 The machine-made sand is crushed and screened to 0.1-0.45 mm, and the double fly ash is crushed and ground to 200-250 mesh; 73 parts by weight of double fly ash, 11 parts by weight of rubber powder, 3 parts by weight of hydroxypropyl methylcellulose ether, 5 parts by weight of calcium formate and 4 parts by weight of cellulose fiber are sequentially added into a blender for premixing, and mixed and stirred evenly to obtain a premix; 360 parts by weight of gray cement, 544 parts by weight of machine-made sand, and 93.5 parts by weight of premix are sequentially added into a mixer and mixed and stirred evenly to obtain cement-based tile adhesive.

[0031] Comparative Example 1 The machine-made sand is crushed and screened to 0.1-0.45 mm, and the double fly ash is crushed and ground to 200-250 mesh; 70 parts by weight of double fly ash, 10.5 parts by weight of rubber powder, 3 parts by weight of hydroxypropyl methylcellulose ether and 5 parts by weight of calcium formate are sequentially added into a mixer for premixing, and mixed and stirred evenly to obtain a premix; 370 parts by weight of gray cement, 541.5 parts by weight of machine-made sand, and 88.5 parts by weight of premix are sequentially added into a mixer and mixed and stirred evenly to obtain tile adhesive powder.

[0032] Comparative Example 2 The machine-made sand is crushed and screened to 0.1-0.45 mm, and the double fly ash is crushed and ground to 200-250 mesh; 70 parts by weight of double fly ash, 10.5 parts by weight of rubber powder, 3 parts by weight of hydroxypropyl methylcellulose ether, 5 parts by weight of calcium formate and 5 parts by weight of wood fiber are sequentially added into a blender for premixing, and mixed and stirred evenly to obtain a premix; 370 parts by weight of gray cement, 536.5 parts by weight of machine-made sand and 93.5 parts by weight of premix are sequentially added into a mixer and mixed and stirred evenly to obtain tile adhesive powder.

[0033] Comparative Example 3 The machine-made sand is crushed and screened to 0.1-0.45 mm, and the double fly ash is crushed and ground to 200-250 mesh; 73 parts by weight of double fly ash, 11 parts by weight of rubber powder, 3 parts by weight of hydroxypropyl methylcellulose ether, 5 parts by weight of calcium formate and 4 parts by weight of wood fiber are sequentially added into a blender for premixing, and mixed and stirred evenly to obtain a premix; 360 parts by weight of gray cement, 544 parts by weight of machine-made sand, and 93.5 parts by weight of premix are sequentially added into a mixer and mixed and stirred evenly to obtain cement-based tile adhesive.

[0034] Performance Testing The powder of the tile adhesive prepared in each embodiment and each comparative example was mixed with water at a mass ratio of 1:0.23; after being uniformly mixed, the test was performed according to the Chinese building materials industry standard JC / T 547-2017 "Ceramic Tile Adhesive". The test results are shown in Table 1 below.

[0035] Table 1

[0036] From the results in Table 1, it can be seen that the physical properties of the tile adhesives in each embodiment of the present application meet the technical requirements for C1 products in JC / T547-2017.

[0037] In addition, from the data showing that the tensile bonding strength significantly increases when the air-opening time is ≥ 20 min, it can be seen that the tile adhesive to which cellulose fibers are added in each embodiment of the present application also has the effect of extending the open time of the tile adhesive and the water-locking function.

[0038] Dust test The dust test was conducted in a room of 15 square meters, and the temperature in the room was controlled (23 ± 2 C) and humidity (50±10), and a laser dust meter was used to measure the dust concentration in the room.

[0039] The dust concentration of Comparative Example 1 is set to 100, the dust concentration of Comparative Example 2 is 90, and the dust concentration of Comparative Example 3 is 93. In contrast, the dust concentration of Example 1 of the present application is 40, and the dust concentration of Example 2 is 50. It can be seen that the tile adhesive of the embodiment of the present application significantly reduces the dust concentration, showing good dust suppression and dust-free effects.

[0040] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A dust-free tile adhesive, characterized in that: The dust-free tile adhesive is prepared from the following materials, which include, by weight, 360-380 parts of cement, 4-6 parts of cellulose fiber, 510-550 parts of aggregate, 65-75 parts of filler, 10-11 parts of glue powder, 4.5-5.5 parts of early strength agent and 2.5-3.5 parts of water retaining agent.

2. The dust-free tile adhesive according to claim 1, wherein the material comprises 370 parts by weight of cement, 5 parts by weight of cellulose fiber, 537 parts by weight of aggregate, 70 parts by weight of filler, 10.5 parts by weight of glue powder, 5 parts by weight of early strength agent and 3 parts by weight of water retaining agent.

3. The dust-free tile adhesive according to claim 1 or 2, wherein the cellulose fibers have a fiber content of 60 wt%-90 wt%, an average fiber length of 450-550 μm, an average fiber thickness of 25-40 μm, and a bulk density of 90 g / l-140 g / l.

4. The dust-free tile adhesive according to claim 1 or 2, wherein the aggregate is selected from one or more of machine-made sand, quartz sand and river sand; optionally, the particle size of the aggregate is 0.1-0.45 mm.

5. The dust-free tile adhesive according to claim 1 or 2, wherein the filler is selected from one or more of double fly ash, mineral powder and fly ash; optionally, the particle size of the filler is 60-250 mesh.

6. The dust-free tile adhesive according to claim 1 or 2, wherein the cement is one or more of gray cement and white cement; and / or, The early strength agent is one or more of lithium carbonate, calcium formate and sodium sulfate.

7. The dust-free tile adhesive according to claim 1 or 2, wherein the adhesive powder is one or more of a ternary copolymer adhesive powder of vinyl acetate, ethylene and higher fatty acid vinyl ester; a copolymer adhesive powder of vinyl acetate and higher fatty acid vinyl ester; and a ternary copolymer adhesive powder of vinyl acetate, acrylate and higher fatty acid vinyl ester.

8. The dust-free tile adhesive according to claim 1 or 2, wherein the water retaining agent is cellulose ether; optionally, the viscosity of the cellulose ether is 10000-100000 mPa·s. 9 . The dust-free tile adhesive according to claim 8 , wherein the cellulose ether is selected from one or more of methyl cellulose ether, hydroxypropyl methyl cellulose ether and carboxymethyl cellulose ether.

10. A method for manufacturing a dust-free tile adhesive according to any one of claims 1 to 9, characterized in that: The steps include: The filler, rubber powder, early strength agent, water retaining agent and cellulose fiber are mixed and stirred evenly to obtain a premix; The dust-free tile adhesive is obtained by mixing and stirring cement, aggregate and the premix evenly.

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