High photoelastic grinding block for ceramic polished glaze tiles and preparation method thereof

Abstract

The application discloses a high-optical-elasticity grinding block for ceramic glaze polishing bricks and a preparation method thereof, and relates to the field of ceramic processing consumables. The high-optical-elasticity grinding block is prepared from the following components in parts by weight: 5-8 parts of diamond, 15-20 parts of silicon carbide, 50-55 parts of resin powder binder, 15-20 parts of filler and 10-20 parts of hollow glass microspheres subjected to surface treatment. The particle size of the hollow glass microspheres subjected to surface treatment is 180-240 microns. Through formula and process adjustment, the application can meet the polishing requirement of the ceramic glaze polishing bricks, solve the problem of glue peeling of the elastic grinding block during polishing, prolong the service life of the elastic grinding block and reduce the production cost.

Description

Technical Field

[0001] This invention relates to the field of polishing ceramic glazed tiles, and more particularly to a high-gloss elastic grinding block for ceramic glazed tiles and its preparation method. Background Technology

[0002] In the ceramic tile processing industry, after tiles are produced through processes such as material application, hot pressing, sintering, and glazing, further polishing is required to improve the smoothness and gloss of the tile surface. Currently, elastic abrasive blocks are commonly used for polishing. Traditional elastic abrasive blocks consist of diamond abrasive, silicon carbide additives, resin powder binders, and fillers. However, the gloss level of traditional elastic abrasive blocks decreases after about half their lifespan, failing to meet polishing requirements. This also results in high wear and a short lifespan. To address these issues, the industry has developed a method of creating pores in the elastic abrasive blocks to maintain high gloss and gloss levels. This is achieved by adding inorganic salts such as sodium chloride or sodium carbonate as pore-forming agents. These inorganic salts dissolve in water, creating pores, which improves the polishing effect of the resulting elastic abrasive blocks, meeting polishing requirements and achieving a high yield. However, elastic abrasive blocks prepared using inorganic salt pore-forming agents have the following drawbacks:

[0003] (1) When the elastic grinding block is not in use, the inorganic salts are easy to dissolve in the humid air and release water, which causes moisture to also be present on the bonding surface between the grinding block and the rubber pad plate, resulting in poor adhesion, easy delamination, and affecting the service life of the elastic grinding block, resulting in low cost performance.

[0004] (2) Inorganic salts dissolve into water and easily wet the packaging carton, making it inconvenient to use the elastic grinding blocks, increasing the cost of moisture-proof packaging, and increasing the packaging volume and transportation costs after designing moisture-proof packaging. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, one of the objectives of the present invention is to provide a high-gloss elastic grinding block for ceramic glazed tiles.

[0006] The second objective of this invention is to provide a method for preparing a high-gloss elastic grinding block for ceramic glazed bricks.

[0007] This invention, through formula and process adjustments, can achieve the polishing requirements of ceramic glazed tiles, while solving the problem of degumming of elastic grinding blocks during the polishing process, thereby improving the service life of elastic grinding blocks and reducing production costs.

[0008] One of the objectives of this invention is achieved by the following technical solution: a high-gloss elastic grinding block for ceramic glazed tiles, prepared from the following components in parts by weight: 5-8 parts diamond, 15-20 parts silicon carbide, 50-55 parts resin powder binder, 15-20 parts filler, and 10-20 parts surface-treated hollow glass microspheres; wherein the particle size of the surface-treated hollow glass microspheres is 180-240 μm.

[0009] Furthermore, the surface-treated hollow glass microspheres are prepared by the following method:

[0010] Dendritic copper powder and a density of 0.3 g / cm³ were collected from the residue passing through an 800-mesh sieve. 3 Hollow glass microspheres were taken at a mass ratio of 1:(1-3) and mixed together. The mixture was then placed in a diffusion furnace and kept at 500-580℃ for 20-30 minutes.

[0011] The obtained blocky powder is crushed, passed through an 80-mesh sieve, and the material on the sieve is collected. Then it is passed through a 60-mesh sieve and the material under the sieve is collected to obtain the surface-treated hollow glass microspheres.

[0012] Furthermore, the dendritic copper powder was purchased from Mengda Company's electrolytic copper powder.

[0013] Furthermore, the hollow glass microspheres were purchased from Saint-Léon Corporation.

[0014] Furthermore, the diamond is selected from diamond with a particle size of 1000-5000 mesh, and the silicon carbide is selected from silicon carbide with a particle size of 1000-5000 mesh.

[0015] Furthermore, the resin powder binder is selected from one or a mixture of two or more of melamine-formaldehyde resin, epoxy resin, phenolic resin, and urea-formaldehyde resin.

[0016] Furthermore, the filler is selected from one of tin oxide, aluminum oxide, zinc oxide, and cerium oxide.

[0017] The second objective of this invention is achieved by the following technical solution: a method for preparing a high-gloss elastic abrasive block for ceramic glazed tiles, characterized by comprising the following steps:

[0018] (1) Surface treatment of hollow glass microspheres: Dendritic copper powder and a density of 0.3 g / cm³ were collected from the material passing through an 800-mesh sieve. 3 Hollow glass microspheres were taken at a mass ratio of 1:(1-3) and mixed together. The mixture was then placed in a diffusion furnace and kept at 500-580℃ for 20-30 minutes. The resulting blocky powder was crushed, passed through an 80-mesh sieve, and the material on the sieve was taken. Then, it was passed through a 60-mesh sieve and the material under the sieve was taken to obtain the surface-treated hollow glass microspheres.

[0019] (2) Mixing: Weigh the diamond, silicon carbide, resin powder binder, filler, and surface-treated hollow glass microspheres according to the formula, put them in a bag, pass them through a 60-mesh vibrating screen, and then put all the materials into a mixing bucket and mix them in a mixer for 2 hours.

[0020] (3) Hot pressing: The prepared powder is loaded into the elastic grinding block mold according to the weight of the grinding block, and then placed into the press for pressing to obtain high gloss elastic grinding blocks;

[0021] (4) Adhesion: Use glue to attach the high-gloss elastic abrasive block to one side of the rubber pad plate;

[0022] (5) Packaging and warehousing.

[0023] Further, in step (2), the diamond, silicon carbide, resin powder binder, filler, and surface-treated hollow glass microspheres are mixed in the following proportions by weight: 5-8 parts diamond, 15-20 parts silicon carbide, 50-55 parts resin powder binder, 15-20 parts filler, and 10-20 parts surface-treated hollow glass microspheres; the particle size of the surface-treated hollow glass microspheres is 180-240 μm.

[0024] Furthermore, in step (3), the powder is pressed at 160-170°C for 10-20 minutes.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] (1) Compared with the elastic grinding blocks made by traditional pore-forming agents, the elastic grinding blocks of the present invention have achieved excellent results in polishing the surface of bricks to a high gloss. Under the same polishing conditions, the high gloss of the ceramic tiles is higher.

[0027] (2) The elastic grinding block of the present invention avoids the problem that the existing inorganic salt pore-forming agent is easy to dissolve and release water, which leads to water leakage at the bonding surface between the grinding block and the rubber pad plate, resulting in poor bonding and easy delamination. At the same time, it extends the service life of the elastic grinding block.

[0028] (3) In addition, with a density of 2.165 g / cm³ 3 Compared to the traditional pore-forming agent sodium chloride, the density of the material added according to this invention is only 0.3 g / cm³. 3 The pore-forming agent reduces the overall density and weight of the product, achieving lightweighting, energy saving and emission reduction, and cost reduction. Specifically, it reduces material costs, packaging costs, and transportation costs. Among them, the material cost is 80% of the cost of elastic grinding blocks made with inorganic salt pore-forming agents, a reduction of 20%. Attached Figure Description

[0029] Figure 1 This is a scanning electron microscope image of the pore-forming agent according to a preferred embodiment of the present invention;

[0030] Figure 2 This is a physical image of the high-gloss elastic grinding block of the preferred embodiment 2 of the present invention.

[0031] in, Figure 1 The middle frame is a hollow structure made of hollow glass beads. Detailed Implementation

[0032] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0033] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the art. Unless otherwise specified, the methods in the following embodiments are conventional methods in the art.

[0034] A high-gloss elastic abrasive block for ceramic glazed tiles is prepared from the following components in parts by weight: 5-8 parts diamond, 15-20 parts silicon carbide, 50-55 parts resin powder binder, 15-20 parts filler, and 10-20 parts surface-treated hollow glass microspheres; wherein the particle size of the surface-treated hollow glass microspheres is 180-240 μm.

[0035] As a further embodiment, the surface-treated hollow glass microspheres are prepared by the following method:

[0036] Dendritic copper powder and a density of 0.3 g / cm³ were collected from the residue passing through an 800-mesh sieve. 3 Hollow glass microspheres were taken at a mass ratio of 1:(1-3) and mixed together. The mixture was then placed in a diffusion furnace and kept at 500-580℃ for 20-30 minutes.

[0037] The obtained blocky powder is crushed, passed through an 80-mesh sieve, and the material on the sieve is collected. Then it is passed through a 60-mesh sieve and the material under the sieve is collected to obtain the surface-treated hollow glass microspheres.

[0038] The hollow glass microspheres of this invention are micron-sized, smooth-surfaced hollow glass microspheres. However, their smooth surface results in poor adhesion to materials such as resin powder, making them prone to detachment and causing a short lifespan for the elastic grinding blocks. Furthermore, the density of these hollow glass microspheres is only 0.3 g / cm³. 3 Hollow glass microspheres tend to float during the mixing process, resulting in uneven mixing. In view of this, the present invention performs surface treatment on hollow glass microspheres to increase the weight of hollow peelable microspheres on the one hand, and to increase their holding force with materials such as resin powder on the other hand, so as to prevent them from falling off.

[0039] The copper powder selected in this invention is a dendritic powder. Copper powder with a particle size of 800 mesh is diffused on the surface of hollow glass microspheres to enhance their holding force, thereby improving the holding force between them and materials such as resin powder, and ensuring their stable coexistence in the abrasive system. At the same time, the increased weight of the surface-treated hollow glass microspheres results in better utilization and more uniform distribution during the mixing process.

[0040] Extensive testing and comparison revealed that pore-forming agents have a significant impact on the product's gloss level. If the amount used is too small, the gloss level will not be achieved, while if the amount used is too large (exceeding 20%), the product's lifespan will be short. Therefore, a usage range of 10-20% is more suitable.

[0041] As a further embodiment, the dendritic copper powder was purchased from Mengda Company's electrolytic copper powder.

[0042] As a further embodiment, the hollow glass microspheres are purchased from Saint-Léon Corporation.

[0043] As a further embodiment, the diamond is selected from diamond with a particle size of 1000-5000 mesh, and the silicon carbide is selected from silicon carbide with a particle size of 1000-5000 mesh.

[0044] As a further embodiment, the resin powder binder is selected from one or a mixture of two or more of melamine-formaldehyde resin, epoxy resin, phenolic resin, and urea-formaldehyde resin.

[0045] As a further embodiment, the filler is selected from one of tin oxide, aluminum oxide, zinc oxide, and cerium oxide.

[0046] The method for preparing the high-gloss elastic abrasive block for ceramic glazed tiles is characterized by comprising the following steps:

[0047] (1) Surface treatment of hollow glass microspheres: Dendritic copper powder and a density of 0.3 g / cm³ were collected from the material passing through an 800-mesh sieve. 3 Hollow glass microspheres were taken at a mass ratio of 1:(1-3) and mixed together. The mixture was then placed in a diffusion furnace and kept at 500-580℃ for 20-30 minutes. The resulting blocky powder was crushed, passed through an 80-mesh sieve, and the material on the sieve was taken. Then, it was passed through a 60-mesh sieve and the material under the sieve was taken to obtain the surface-treated hollow glass microspheres.

[0048] (2) Mixing: Weigh the diamond, silicon carbide, resin powder binder, filler, and surface-treated hollow glass microspheres according to the formula, put them in a bag, pass them through a 60-mesh vibrating screen, and then put all the materials into a mixing bucket and mix them in a mixer for 2 hours.

[0049] (3) Hot pressing: The prepared powder is loaded into the elastic grinding block mold according to the weight of the grinding block, and then placed into the press for pressing to obtain high gloss elastic grinding blocks;

[0050] (4) Adhesion: Use glue to attach the high-gloss elastic abrasive block to one side of the rubber pad plate;

[0051] (5) Packaging and warehousing.

[0052] As a further embodiment, in step (2), the diamond, silicon carbide, resin powder binder, filler, and surface-treated hollow glass microspheres are mixed in the following proportions by weight: 5-8 parts diamond, 15-20 parts silicon carbide, 50-55 parts resin powder binder, 15-20 parts filler, and 10-20 parts surface-treated hollow glass microspheres; the particle size of the surface-treated hollow glass microspheres is 180-240 μm.

[0053] As a further embodiment, in step (3), the powder is pressed at 160-170°C for 10-20 minutes.

[0054] The following are specific embodiments of the present invention. Unless otherwise specified, the raw materials, equipment and other materials used in the following embodiments can be obtained by purchasing.

[0055] Examples 1-3 and Comparative Examples 1-8

[0056] Weigh the raw materials according to the proportions in Table 1, and prepare the pressure-sensitive adhesive according to the preparation method in Table 1 to obtain pressure-sensitive adhesives for different embodiments. See Table 1 for details:

[0057] Table 1. Raw material ratios for Examples 1-3 and Comparative Examples 1-8

[0058]

[0059] In Table 1, the diamond is 3000-mesh diamond, the silicon carbide is 3000-mesh silicon carbide, the resin powder binder is melamine-formaldehyde resin, and the filler is cerium oxide. The hollow glass microspheres used in the hollow exfoliation microspheres were purchased from Saint-Léite Company. Unless otherwise specified, the dendritic copper powder was purchased from Mengda Company's electrolytic copper powder. Conventional copper powder was purchased from Mengda Company's conventional copper powder. Conventional iron powder was purchased from Mengda Company's iron powder. The sodium chloride was industrial grade sodium chloride.

[0060] The methods for preparing elastic grinding blocks in Examples 1-3 and Comparative Examples 1-8 include the following steps:

[0061] (1) Surface treatment of hollow glass microspheres: Dendritic copper powder and a density of 0.3 g / cm³ were collected from the material passing through an 800-mesh sieve. 3 Hollow glass microspheres, such as Figure 1 As shown, the materials are taken at a mass ratio of 1:2 and mixed together. The mixture is then placed in a diffusion furnace and kept at 550°C for 25 minutes. The resulting blocky powder is crushed, passed through an 80-mesh sieve, and the material on the sieve is taken. Then, it is passed through a 60-mesh sieve and the material under the sieve is taken to obtain the surface-treated hollow glass microspheres.

[0062] (2) Mixing: Weigh the diamond, silicon carbide, resin powder binder, filler and surface-treated hollow glass microspheres according to the dosage in Table 1, put them in a bag, pass them through a 60-mesh vibrating screen, and then put all the materials into the mixing bucket and mix them in the mixer for 2 hours.

[0063] (3) Hot pressing: The prepared powder is loaded into the elastic grinding block mold according to the weight of the grinding block, and then placed in the press for pressing. Press at 165℃ for 15 minutes to obtain high gloss elastic grinding blocks.

[0064] (4) Adhesion: Use glue to attach the high-gloss elastic abrasive block to one side of the rubber pad plate, as shown in Figure 2;

[0065] (5) Packaging and warehousing.

[0066] Comparative Example 1

[0067] Compared with the high-gloss elastic grinding block of Example 2, the difference of Comparative Example 1 is that in the high-gloss elastic grinding block preparation process step (1), after the block-shaped powder is crushed, it is only sieved through an 80-mesh sieve and the material under the sieve is taken. That is, the selected hollow glass microspheres have a particle size of less than 180μm. The dosage of other components and the process steps and conditions are the same as those of Example 2.

[0068] Comparative Example 2

[0069] Compared with the high-gloss elastic grinding block of Example 2, the difference of Comparative Example 2 is that in the high-gloss elastic grinding block preparation process step (1), the block-shaped powder is crushed and then sieved through a 60-mesh sieve. The material on the sieve is taken, that is, the hollow glass microspheres with a particle size greater than 240μm. The amount of other components and the process steps and conditions are the same as those of Example 2.

[0070] Comparative Example 3

[0071] Compared with the high-gloss elastic grinding block of Example 2, the difference of Comparative Example 3 is that in the preparation process step (1) of the high-gloss elastic grinding block, the selected copper powder is conventional copper powder that is not dendritic and is sieved through an 800-mesh sieve. The amount of other components and the process steps and conditions are the same as those of Example 2.

[0072] Comparative Example 4

[0073] Compared with the high-gloss elastic grinding block of Example 2, the difference of Comparative Example 4 is that in the preparation process step (1) of the high-gloss elastic grinding block, the selected copper powder is dendritic copper powder that passes through a 600-mesh sieve to obtain the material on the sieve, and the amount of other components and the process steps and conditions are the same as those of Example 2.

[0074] Comparative Example 5

[0075] Compared with the high-gloss elastic grinding block of Example 2, the difference of Comparative Example 5 is that the hollow glass microspheres used in the high-gloss elastic grinding block are surface-treated with conventional iron powder that passes through an 800-mesh sieve to remove the material on the sieve. The amount of other components and the process steps and conditions are the same as those in Example 2.

[0076] Comparative Example 6

[0077] Compared with the high-gloss elastic grinding block of Example 2, the difference in Comparative Example 6 is that the hollow glass microspheres used in the high-gloss elastic grinding block were not surface-treated. The purchased hollow glass microspheres were crushed, passed through an 80-mesh sieve, and the material above the sieve was taken. Then, the material above the sieve was passed through a 60-mesh sieve, and the material below the sieve was taken. The dosage of other components and the process steps and conditions were the same as in Example 2.

[0078] Comparative Example 7

[0079] Compared with the high-gloss elastic grinding block of Example 2, the difference of Comparative Example 7 is that the surface-treated hollow glass microspheres of the present invention are not added, while the amount of other components and the process steps and conditions are the same as those of Example 2.

[0080] Comparative Example 8

[0081] Compared with the high-gloss elastic grinding block of Example 2, the difference of Comparative Example 8 is that the traditional pore-forming agent sodium chloride is used instead of the surface-treated hollow glass microspheres of the present invention, while the dosage of other components and the process steps and conditions are the same as those of Example 2.

[0082] Effect evaluation and performance testing

[0083] The performance of the elastic abrasive blocks of Examples 1-3 and Comparative Examples 1-8 was tested. A batch of polished glazed ceramic tiles from the same batch were used. The elastic abrasive blocks prepared in each example were used to polish the polished glazed ceramic tiles for 5 hours. The gloss of the ceramic tile surface after polishing, as well as the service life and processing cost of the elastic abrasive blocks of each example under the same polishing conditions, were tested. The specific test items and results are shown in Table 1. The gloss was tested according to the GB / T13891-2008 standard.

[0084] Table 2 shows the test data of the elastic grinding block performance of each embodiment.

[0085]

[0086]

[0087] As shown in the table above, compared with the elastic grinding block prepared by the traditional pore-forming agent in Comparative Example 8, the elastic grinding block of the present invention achieves excellent results in polishing the surface of bricks to a high gloss. Under the same polishing conditions, the high gloss of the ceramic tile is higher. At the same time, it avoids the problem of water seepage at the bonding surface between the grinding block and the adhesive pad caused by the easy dissolution of existing inorganic salt pore-forming agents, resulting in poor adhesion and easy delamination, and also extends the service life of the elastic grinding block. In addition, the addition of the pore-forming agent of the present invention reduces the overall density and weight of the product, achieving lightweighting, energy saving and emission reduction, and cost reduction. Specifically, it reduces material costs, packaging costs, and transportation costs. The costs in Table 2 above only consider material costs, that is, the sum of the formulation cost and processing cost of the elastic grinding block.

[0088] Compared with Example 2, the difference between the elastic grinding blocks of Comparative Examples 1-2 is that the selected hollow glass microspheres with a particle size of less than 180 μm or greater than 240 μm are not within the particle size range of the present invention. If the particle size is too large, the life of the produced elastic grinding block will be drastically reduced, only half of the original life. If the particle size is too small, the polishing gloss of the produced elastic grinding block will not meet the requirements for varnishing. Therefore, it can be seen that the optimal particle size of hollow glass microspheres is 180-240 μm.

[0089] Compared with Example 2, the difference between the elastic grinding blocks of Comparative Examples 3-5 is that the selected copper powder is non-dendritic copper powder, or the copper powder particle size is larger, or iron powder is used instead of copper powder. The above comparative tests all show that the surface treatment effect is the best when using dendritic copper powder with a particle size of 800 mesh.

[0090] Compared with Example 2, the difference of the elastic abrasive block in Comparative Example 6 is that the hollow glass microspheres used in the high-gloss elastic abrasive block were not surface treated, which affected the polishing gloss, service life of the abrasive block and other effects.

[0091] Compared with Example 2, the difference of the elastic grinding block in Comparative Example 7 is that no glass beads are added. Without glass beads, there are no holes in the elastic grinding block, which leads to a sharp decline in the overall performance of the product.

[0092] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A high photoelastic grinding wheel for ceramic polishing, characterized by, Is prepared from the following components by weight parts: diamond 5-8 parts, silicon carbide 15-20 parts, resin powder binder 50-55 parts, filler 15-20 parts, surface treated hollow glass microspheres 10-20 parts; the particle size of the surface treated hollow glass microspheres is 180-240 μm; The surface treated hollow glass microspheres are prepared by the following method: The dendritic copper powder with sieve residue of 800 mesh and hollow glass microbeads with a density of 0.3 g / cm³ are taken in a mass ratio of 1: (1-3), mixed with each other, and then the mixture is placed in a diffusion furnace and kept at 500-580 ℃ for 20-30 min; The block-shaped powder obtained above is crushed, sieved through an 80 mesh sieve, and the sieve residue is sieved through a 60 mesh sieve, and the sieve residue is obtained, which is the surface treated hollow glass microbeads.

2. The high photoelastic grinding wheel for ceramic polishing of the claim 1, wherein, The diamond is selected from diamond with a particle size of 1000-5000 mesh, and the silicon carbide is selected from silicon carbide with a particle size of 1000-5000 mesh.

3. The high photoelastic grinding wheel for ceramic polishing of the claim 1, characterized in that, The resin powder binder is selected from one or a mixture of two or more of melamine formaldehyde resin, epoxy resin, phenolic resin, and urea formaldehyde resin.

4. The high photoelastic grinding wheel for ceramic polishing of claim 1, wherein, The filler is selected from one of tin oxide, aluminum oxide, zinc oxide, and cerium oxide.

5. A method of producing a high-optical-elastic abrasive block for ceramic polished glaze tiles according to any one of claims 1 to 4, characterized in that, Comprising the following steps: (1) Surface treatment of hollow glass microbeads: the dendritic copper powder with sieve residue of 800 mesh and hollow glass microbeads with a density of 0.3 g / cm³ are taken in a mass ratio of 1: (1-3), mixed with each other, and then the mixture is placed in a diffusion furnace and kept at 500-580 ℃ for 20-30 min; the block-shaped powder obtained above is crushed, sieved through an 80 mesh sieve, and the sieve residue is sieved through a 60 mesh sieve, and the sieve residue is obtained, which is the surface treated hollow glass microbeads; (2) Compound: then the diamond, silicon carbide, resin powder binder, filler, and surface treated hollow glass microspheres are weighed according to the formula amount, put in a bag, sieved through a 60 mesh vibrating screen, and then all the materials are put into a mixing barrel and mixed on a mixing machine for 2 h; (3) Hot pressing: the prepared powder is loaded into an elastic grinding block mold according to the single weight of the grinding block, and then placed in a press for pressing to obtain a high light elastic grinding block; (4) Pasting: the high light elastic grinding block is pasted on one side of the rubber pad card board with glue; (5) Packaging into warehouse.

6. The method for preparing high-gloss elastic mill blocks for ceramic glazed tiles as described in claim 5, characterized in that, In step (2), the diamond, silicon carbide, resin powder binder, filler, and surface treated hollow glass microspheres are mixed in the following formula amount by weight parts: diamond 5-8 parts, silicon carbide 15-20 parts, resin powder binder 50-55 parts, filler 15-20 parts, and surface treated hollow glass microspheres 10-20 parts; the particle size of the surface treated hollow glass microspheres is 180-240 μm.

7. The method for preparing the high-gloss elastic abrasive block for ceramic glazed tiles as described in claim 5, characterized in that, In step (3), the powder is pressed at 160-170 ℃ for 10-20 min.

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