Highly wear-resistant cement tile and method for manufacturing the same

Abstract

The application relates to a high-wear-resistance cement tile and a preparation method thereof, and belongs to the technical field of cement tiles. The high-wear-resistance cement tile disclosed by the application comprises the following raw materials: white cement, common cement, wear-resistant filler, oxidation pigment, quartz sand, fine sand, fine aggregate and albite, wherein the albite has a mesh number of 250 meshes; the preparation method comprises the following steps: material preparation, mold loading, grouting, mold drawing, sieve material and brick pressing, demolding and brick taking, and spraying and maintenance. Amino groups (-NH2) are introduced on the surface of graphene to modify the graphene; the amino groups have high reactivity and can form chemical bonds with silicate ions (-SiO4) in cement, so that the bonding force of the graphene in the cement is enhanced; meanwhile, the amino groups are mixed with emulsifiers to obtain an emulsion, and the dispersibility of the emulsion in the cement is enhanced; in addition, the quartz sand in the intermediate layer material and the albite in the bottom layer material react to generate calcium sodium silicate when heated, so that the hardness and wear resistance of the cement tile are enhanced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cement tiles, and relates to a high-wear-resistance cement tile and a preparation method thereof. BACKGROUND

[0002] The cement tile is a building decoration material very common in our daily life, and is a kind of special ceramic tile. The cement tile is born with rusticity and classical beauty, which attracts more and more modern people, and is gradually used in museums, cafes, cultural and creative parks and the like. With the continuous improvement of people's consumption level and aesthetics, the requirements for the decoration effect, the clarity of the pattern, the hardness and the wear resistance of the cement tile are gradually improved. The cement tiles on the market usually have the problems of cracks and easy wear, and therefore, the high-wear-resistance cement tile and the preparation method thereof can effectively avoid the above problems. SUMMARY

[0003] The application relates to a high-wear-resistance cement tile and a preparation method thereof, and belongs to the technical field of cement tiles. The high-wear-resistance cement tile disclosed by the application comprises the following raw materials: white cement, ordinary cement, wear-resistant filler, oxidized pigment, quartz sand, fine sand, fine aggregate and albite, wherein the average mesh number of the albite is 250 meshes, and the preparation method comprises the following steps: material preparation, mold loading, grouting, mold drawing, screening and brick pressing, demolding and brick taking, and spraying and maintenance. The amino group (-NH2) is introduced on the surface of the graphene to modify the graphene, the amino group has high reactivity, can form a chemical bond with the silicate ion (-SiO4) in the cement, and thus the bonding force of the graphene in the cement is enhanced, the emulsifying agent is mixed to obtain an emulsion, and the dispersibility of the emulsion in the cement is enhanced. In addition, the quartz sand in the intermediate layer material and the albite in the bottom layer material react to generate calcium silicate sodium acetate when heated, and the hardness and wear resistance of the cement tile are enhanced.

[0004] The object of the application can be achieved by the following technical scheme.

[0005] The high-wear-resistance cement tile comprises the following raw materials: white cement, ordinary cement, wear-resistant filler, oxidized pigment, quartz sand, fine sand, fine aggregate and albite, wherein the average particle size of the albite is 150-300 meshes.

[0006] Further, the preparation method of the high-wear-resistance cement tile comprises the following steps.

[0007] (1) The oxidized pigment is mixed with the white cement, the mixture is sieved, water is added and stirred to form a color paste, and the color paste is prepared for use;

[0008] (2) The intermediate layer material is obtained by mixing the ordinary cement, the fine sand, the quartz sand and the wear-resistant filler;

[0009] (3) the ordinary cement, fine aggregate, albite and wear-resistant filler are mixed to obtain a mixture a, then water is added to stir and mix to obtain the bottom layer material;

[0010] (4) the mold is cleaned and dried, the inner mold is placed in the outer mold frame, the color paste is injected while shaking the whole mold to control the thickness of the color paste;

[0011] (5) then the inner mold is taken out, the middle layer material is laid on the color paste, and a scraper is used to flatten it;

[0012] (6) finally, the bottom layer material is poured into the outer mold, flattened with a scraper, and the outer mold bottom cover is covered and placed in a hydraulic machine to press into a brick;

[0013] (7) after the mold is removed and the brick is taken out, heating is performed, and after cooling, the cement tile is obtained by placing, and the cement tile is continuously sprayed with water for 3-7 days, once a day, so that the surface of the cement tile is wetted.

[0014] Further, the mass ratio of the oxidized pigment and the white cement in step (1) is 1:15-25, and the volume ratio of the mixture and water is 1:0.8-1.2, and the mesh number of the sieving is 150-200.

[0015] Further, the mass ratio of the ordinary cement, fine sand, quartz sand and wear-resistant filler in step (2) is 1:0.5:0.2-0.3:0.05-0.1.

[0016] Further, the mass ratio of the ordinary cement, fine aggregate, albite and wear-resistant filler in step (3) is 1:1:0.2-0.3:0.1, and the volume ratio of the mixture a and water is 1:0.2-0.3.

[0017] Further, the thickness of the color paste in step (4) is 3-3.5mm, the volume ratio of the middle layer material to the color paste in step (5) is 1:0.4-0.5, the amount of the bottom layer material poured in step (6) is just enough to cover the whole outer mold, wherein the size of the outer mold is 22cm×22cm×3cm, and the pressure of the hydraulic machine is 8-10MPa.

[0018] Further, the temperature and time of heating in step (7) are 400-500℃ and 20-30min respectively, and the placing time is 24-30h.

[0019] Further, the preparation method of the wear-resistant filler in steps (2) and (3) comprises the following steps:

[0020] A1: the graphene oxide powder is mixed with anhydrous ethanol and ultrasonicated for 1-2h, then 3-aminopropyltriethoxysilane is added to stir to form a mixture b;

[0021] A2: The mixture b is heated to reflux, and the obtained solid phase is washed with distilled water for 3-5 times, and then dried to obtain modified graphene;

[0022] A3: The modified graphene is mixed with an emulsifier, and then shearing and stirring are carried out at a high temperature to obtain an emulsion, which is the wear-resistant filler.

[0023] Further, in the step A1, the ratio of the graphene oxide powder, the anhydrous ethanol and the 3-aminopropyl triethoxysilane is 1g:30mL:1mL, in the step A2, the heating reflux time is 3-4h, and the drying temperature and time are 100-110℃ and 30-50min, respectively.

[0024] Further, in the step A3, the ratio of the modified graphene and the emulsifier is 1-2g:3mL, wherein the emulsifier is composed of polyvinylpyrrolidone, polyvinyl alcohol and distilled water with a mass ratio of 1:1-2:2, the temperature is raised to 120-130℃, and the stirring speed and time are 800-1000r / min and 10-20min, respectively.

[0025] The beneficial effects of the present application are as follows:

[0026] 1. The amino group (-NH2) is introduced on the surface of the graphene to modify the graphene, the amino group has high reactivity, can form a chemical bond with the silicate ion (-SiO4) in the cement, thereby enhancing the binding force of the graphene in the cement, and the emulsion is obtained by mixing the modified graphene with the emulsifier, thereby enhancing the dispersibility of the modified graphene in the cement, the polyvinyl alcohol in the emulsifier has good water solubility and colloidal stability, the polyvinylpyrrolidone has a long molecular chain to block the modified graphene, and the combination of the two improves the dispersibility of the modified graphene in the cement.

[0027] 2. In addition, the quartz sand in the intermediate layer material reacts with the albite in the bottom layer material to generate calcium sodium silicate when the temperature is raised, thereby enhancing the hardness and wear resistance of the cement tile. DETAILED DESCRIPTION

[0028] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined object, the specific embodiments, structures, features and effects according to the present application are described in detail as follows.

[0029] The white cement in all examples and comparative examples of the present application is purchased from Macmene, the ordinary cement is purchased from Yinghua, the quartz sand is purchased from Pansheng, the graphene oxide powder is purchased from Jian Stone, the quartz sand is purchased from Jilin Province Changyue Environmental Protection Equipment Co., Ltd., the fine sand has a particle size of 0.25-0.35mm, the fine aggregate is purchased from Anjianhongye Construction Company, the type of polyvinylpyrrolidone is K30, and the type of polyvinyl alcohol is CW40-705.

[0030] Embodiment 1

[0031] A high wear-resistant cement tile, comprising the following raw materials: white cement, ordinary cement, wear-resistant filler, oxidized pigment, quartz sand, fine sand, fine aggregate, and sodium feldspar, wherein the average particle size of the sodium feldspar is 250 mesh.

[0032] The preparation method of the high wear-resistant cement tile comprises the following steps:

[0033] (1) mixing the oxidized pigment with the white cement, sieving to obtain a mixture, then adding water to stir to form a color paste, and reserving;

[0034] (2) mixing the ordinary cement, fine sand, quartz sand, and wear-resistant filler to obtain an intermediate layer material;

[0035] (3) mixing the ordinary cement, fine aggregate, sodium feldspar, and wear-resistant filler to obtain a mixture a, then adding water to stir and mix to obtain a bottom layer material;

[0036] (4) cleaning and drying the mold, placing the inner mold in the outer mold frame, pouring the color paste while shaking the entire mold, and controlling the thickness of the color paste;

[0037] (5) then drawing out the inner mold, laying the intermediate layer material on the color paste, and using a scraper to flatten;

[0038] (6) finally pouring the bottom layer material into the outer mold, using a scraper to flatten, covering the outer mold bottom cover, and placing it into a hydraulic machine to press into a tile;

[0039] (7) after demolding and taking out the tile, heating, cooling, and placing to obtain a cement tile, and using water to spray continuously for 3 days, once a day, to make the surface of the cement tile wet.

[0040] In the step (1), the mass ratio of the oxidized pigment to the white cement is 1:20, the volume ratio of the mixture to water is 1:1, and the sieving mesh number is 150 mesh.

[0041] In the step (2), the mass ratio of the ordinary cement, fine sand, quartz sand, and wear-resistant filler is 1:0.5:0.2:0.05.

[0042] In the step (3), the mass ratio of the ordinary cement, fine aggregate, sodium feldspar, and wear-resistant filler is 1:1:0.2:0.1, and the volume ratio of the mixture a to water is 1:0.2.

[0043] The thickness of the color paste in the step (4) is 3mm, the volume ratio of the intermediate layer material to the color paste in the step (5) is 1:0.4, the amount of the bottom layer material poured in the step (6) is just enough to cover the whole outer mold, wherein the size of the outer mold is 22cm*22cm*3cm, and the pressure of the hydraulic machine is 8MPa.

[0044] The heating temperature and time in the step (7) are 400℃ and 20min respectively, and the placing time is 24h.

[0045] The preparation method of the wear-resistant filler in the steps (2) and (3) comprises the following steps:

[0046] A1: after mixing the graphene oxide powder with anhydrous ethanol and ultrasonic treatment for 1h, 3-aminopropyl triethoxysilane is added to form a mixture b;

[0047] A2: the mixture b is heated to reflux, the obtained solid phase is washed with distilled water for 3 times, and then dried to obtain modified graphene;

[0048] A3: the modified graphene is mixed with an emulsifier, and then heated and stirred to obtain an emulsion, i.e. the wear-resistant filler.

[0049] In the step A1, the ratio of the graphene oxide powder, anhydrous ethanol and 3-aminopropyl triethoxysilane is 1g:30mL:1mL, the heating reflux time in the step A2 is 3h, and the drying temperature and time are 100℃ and 30min respectively.

[0050] In the step A3, the ratio of the modified graphene to the emulsifier is 1g:3mL, wherein the emulsifier is composed of polyvinylpyrrolidone, polyvinyl alcohol and distilled water with a mass ratio of 1:1:2, the heating is heating to 120℃, and the stirring speed and time are 800r / min and 10min respectively.

[0051] Example 2

[0052] A high wear-resistant cement tile, comprising the following raw materials: white cement, ordinary cement, wear-resistant filler, oxidation pigment, quartz sand, fine sand, fine aggregate, and sodium feldspar, wherein the average particle size of the sodium feldspar is 250 mesh.

[0053] The preparation method of the high wear-resistant cement tile comprises the following steps:

[0054] (1) mixing the oxidation pigment with the white cement, sieving to obtain a mixture, then adding water to stir to form a color paste, and reserving;

[0055] (2) mixing the ordinary cement, fine sand, quartz sand and wear-resistant filler to obtain an intermediate layer material;

[0056] (3) Ordinary cement, fine aggregate, sodium feldspar and wear-resistant filler are mixed to obtain mixture a, and then water is added to stir and mix to obtain the bottom layer material;

[0057] (4) The mold is cleaned and dried, the inner mold is placed in the outer mold frame, the color paste is injected while shaking the whole mold, and the thickness of the color paste is controlled;

[0058] (5) Then the inner mold is pulled out, the middle layer material is laid on the color paste, and a scraper is used to flatten it;

[0059] (6) Finally, the bottom layer material is poured into the outer mold, flattened with a scraper, covered with an outer mold bottom cover, and placed in a hydraulic machine to press into a brick;

[0060] (7) After demolding and taking out the brick, heating is performed, and after cooling, the cement tile is obtained by placing it, and the cement tile is continuously sprayed with water for 5 days, once a day, so that the surface of the cement tile is wetted.

[0061] The mass ratio of the oxidized pigment and the white cement in step (1) is 1:20, the volume ratio of the mixture and water is 1:1, and the mesh number of the sieving is 180 meshes.

[0062] The mass ratio of the ordinary cement, fine sand, quartz sand and wear-resistant filler in step (2) is 1:0.5:0.25:0.08.

[0063] The mass ratio of the ordinary cement, fine aggregate, sodium feldspar and wear-resistant filler in step (3) is 1:1:0.25:0.1, and the volume ratio of the mixture a and water is 1:0.25.

[0064] The thickness of the color paste in step (4) is 3.2 mm, the volume ratio of the middle layer material to the color paste in step (5) is 1:0.45, the amount of the bottom layer material poured in step (6) is just enough to flatten the entire outer mold, wherein the size of the outer mold is 22 cm×22 cm×3 cm, and the pressure of the hydraulic machine is 9 MPa.

[0065] The temperature and time of heating in step (7) are 450℃ and 25 min respectively, and the placing time is 26 h.

[0066] The preparation method of the wear-resistant filler in steps (2) and (3) comprises the following steps:

[0067] A1: The graphene oxide powder is mixed with anhydrous ethanol and ultrasonicated for 1.5 h, then 3-aminopropyltriethoxysilane is added to stir to form a mixture b;

[0068] A2: The mixture b is heated to reflux, the obtained solid phase is washed with distilled water for 4 times, and then dried to obtain modified graphene;

[0069] A3: the modified graphene is mixed with the emulsifier, and the mixing, shearing and pasting are carried out under heating to obtain an emulsion, i.e. the wear-resistant filler.

[0070] The ratio of the graphene oxide powder, the anhydrous ethanol and the 3-aminopropyl triethoxysilane in the step A1 is 1 g:30 mL:1 mL, the time of heating under reflux in the step A2 is 3.5 h, and the temperature and time of drying are 105 ℃ and 40 min respectively.

[0071] The ratio of the modified graphene and the emulsifier in the step A3 is 1.5 g:3 mL, wherein the emulsifier is composed of polyvinylpyrrolidone, polyvinyl alcohol and distilled water with a mass ratio of 1:1.5:2, the heating is heating to 125 ℃, and the rotating speed and time of the mixing, shearing and pasting are 900 r / min and 15 min respectively.

[0072] Example 3

[0073] A high wear-resistant cement tile, comprising the following raw materials: white cement, ordinary cement, wear-resistant filler, oxidation pigment, quartz sand, fine sand, fine aggregate and sodium feldspar, wherein the average particle size of the sodium feldspar is 250 mesh.

[0074] The preparation method of the high wear-resistant cement tile comprises the following steps:

[0075] (1) mixing the oxidation pigment with the white cement, sieving to obtain a mixture, then adding water to stir to form a color paste, and reserving;

[0076] (2) mixing the ordinary cement, the fine sand, the quartz sand and the wear-resistant filler to obtain an intermediate layer material;

[0077] (3) mixing the ordinary cement, the fine aggregate, the sodium feldspar and the wear-resistant filler to obtain a mixture a, then adding water to stir and mix to obtain a bottom layer material;

[0078] (4) cleaning and drying a mold, placing an inner mold in an outer mold frame, injecting the color paste while shaking the whole mold, and controlling the thickness of the color paste;

[0079] (5) then taking out the inner mold, laying the intermediate layer material on the color paste, and using a scraper to scrape it flat;

[0080] (6) finally pouring the bottom layer material into the outer mold, scraping it flat with a scraper, covering the bottom cover of the outer mold, and placing it into a hydraulic machine to press into a tile;

[0081] (7) after taking out the tile, heating, cooling and placing to obtain the cement tile, and continuously spraying water on the cement tile for 7 days, once a day, so that the surface of the cement tile is wetted.

[0082] The mass ratio of the oxidized pigment and the white cement in the step (1) is 1:20, the volume ratio of the mixture and water is 1:1, and the mesh number of the sieving is 200 mesh.

[0083] The mass ratio of the ordinary cement, fine sand, quartz sand and wear-resistant filler in the step (2) is 1:0.5:0.3:0.1.

[0084] The mass ratio of the ordinary cement, fine aggregate, sodium feldspar and wear-resistant filler in the step (3) is 1:1:0.3:0.1, and the volume ratio of the mixture a and water is 1:0.3.

[0085] The thickness of the color paste in the step (4) is 3.5 mm, the volume ratio of the intermediate layer material and the color paste in the step (5) is 1:0.5, the amount of the bottom layer material poured in the step (6) is just enough to cover the entire outer mold, wherein the size of the outer mold is 22 cm×22 cm×3 cm, and the pressure of the hydraulic machine is 10 MPa.

[0086] The temperature and time of heating in the step (7) are 500 ℃ and 30 min respectively, and the placing time is 30 h.

[0087] The preparation method of the wear-resistant filler in the steps (2) and (3) comprises the following steps:

[0088] A1: the graphene oxide powder is mixed with anhydrous ethanol and then ultrasonically treated for 2 h, 3-aminopropyl triethoxysilane is added and stirred to form a mixture b;

[0089] A2: the mixture b is heated and refluxed, the obtained solid phase is washed with distilled water for 5 times, and then dried to obtain modified graphene;

[0090] A3: the modified graphene is mixed with an emulsifier, heated and stirred to obtain an emulsion, which is the wear-resistant filler.

[0091] The ratio of the graphene oxide powder, anhydrous ethanol and 3-aminopropyl triethoxysilane in the step A1 is 1 g:30 mL:1 mL, the heating and refluxing time in the step A2 is 4 h, and the drying temperature and time are 110 ℃ and 50 min respectively.

[0092] The ratio of the modified graphene and the emulsifier in the step A3 is 2 g:3 mL, wherein the emulsifier is composed of polyvinylpyrrolidone, polyvinyl alcohol and distilled water with a mass ratio of 1:2:2, the heating is heating to 130 ℃, and the stirring speed and time of the stirring and shearing are 1000 r / min and 20 min respectively.

[0093] Comparative Example 1

[0094] Based on Example 2, the wear-resistant filler in step (2) is removed, and other conditions are the same as in Example 2.

[0095] Comparative Example 2

[0096] Based on Example 2, the wear-resistant filler in step (3) is removed, and other conditions are the same as in Example 2.

[0097] Comparative Example 3

[0098] Based on Example 2, steps A1 and A2 in the method for preparing wear-resistant fillers were removed, and the modified graphene in step A3 was replaced with an equal mass of graphene, while other conditions remained the same as in Example 2.

[0099] Comparative Example 4

[0100] Based on Example 2, polyvinylpyrrolidone was removed from the emulsifier, and an equal mass of polyvinyl alcohol was used, while other conditions remained the same as in Example 2.

[0101] Comparative Example 5

[0102] Based on Example 2, polyvinyl alcohol was removed from the emulsifier, and an equal mass of polyvinylpyrrolidone was used, while other conditions remained the same as in Example 2.

[0103] Comparative Example 6

[0104] Based on Example 2, the quartz sand in step (2) is removed, and other conditions are the same as in Example 2.

[0105] Comparative Example 7

[0106] Based on Example 2, the albite in step (3) was removed, and other conditions were the same as in Example 2.

[0107] 1. Performance Testing

[0108] Abrasion resistance test: Abrasion resistance tests were conducted on the cement tiles prepared in Examples 1-3 and Comparative Examples 1-5 according to the "Test Method for Abrasion Resistance of Inorganic Flooring Materials" (GB / T12988-2009). Additionally, commercially available cement colored tiles (purchased from Lehong) were used as a control group and tested together. The abrasion rate of the cement tiles and cement colored tiles after 30 minutes was calculated using the following formula:

[0109] Wear rate = (ab) / a × 100%, where a is the mass of the tile before the test and b is the mass after the test;

[0110] Flexural strength test: The flexural strength of cement tiles obtained in Examples 1-3 and Comparative Examples 6-7 and the control group were tested according to the flexural strength of cement tiles in Jc410-91.

[0111] The test results are shown in Table 1.

[0112] Table 1 Test results

[0113]

[0114]

[0115] From Table 1, it can be seen that the abrasion rates of Examples 1-3 are less than those of Comparative Examples 1-5 and the control group, and the flexural strengths are greater than those of Comparative Examples 6-7 and the control group. In Comparative Examples 1-2, no wear-resistant filler is added, and the wear resistance is reduced; in Comparative Example 3, modified graphene is used, and the combination with cement is reduced, thereby affecting the wear resistance; in Comparative Examples 4-5, the emulsifiers are relatively single, and the dispersion effect is not ideal, thereby making the wear resistance effect poor; and in Comparative Examples 6-7, there is no quartz sand in the intermediate layer material or no albite in the bottom layer material, no calcium sodium silicate is generated, the combination between layers is reduced, and the flexural strength is greatly reduced.

[0116] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed as above with reference to the preferred embodiments, the present application is not intended to be limited thereto. Any person skilled in the art, without departing from the technical solution of the present application, can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not depart from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments, which are made according to the technical essence of the present application, still belong to the scope of the technical solution of the present application.

Claims

1. A high abrasion resistant cement tile, characterized by, The high wear-resistant cement tile comprises the following raw materials: white cement, ordinary cement, wear-resistant filler, oxidized pigment, quartz sand, fine sand, fine aggregate, and sodium feldspar, wherein the average particle size of the sodium feldspar is 150-300 mesh; The preparation method of the high wear-resistant cement tile comprises the following steps: (1) mixing the oxidized pigment with the white cement, sieving to obtain a mixture, then adding water to stir to form a color paste, and reserving, wherein the mass ratio of the oxidized pigment to the white cement is 1:15-25, the volume ratio of the mixture to water is 1:0.8-1.2, and the mesh number of the sieving is 150-200; (2) mixing the ordinary cement, the fine sand, the quartz sand, and the wear-resistant filler to obtain an intermediate layer material, wherein the mass ratio of the four is 1:0.5:0.2-0.3:0.05-0.1; (3) mixing the ordinary cement, the fine aggregate, the sodium feldspar, and the wear-resistant filler to obtain a mixture a, then adding water to stir to obtain a bottom layer material, wherein the mass ratio of the four is 1:1:0.2-0.3:0.1, and the volume ratio of the mixture a to water is 1:0.2-0.3; (4) cleaning and drying the mold, placing the inner mold in the outer mold frame, injecting the color paste while shaking the whole mold, and controlling the thickness of the color paste to be 3-3.5 mm; (5) then taking out the inner mold, laying the intermediate layer material on the color paste, and using a scraper to flatten, wherein the volume ratio of the intermediate layer material to the color paste is 1:0.4-0.5; (6) finally pouring the bottom layer material into the outer mold, pouring an amount of the bottom layer material just to evenly fill the whole outer mold, using a scraper to flatten, covering the outer mold bottom cover, and placing into a hydraulic machine to press into a tile, wherein the pressure of the hydraulic machine is 8-10 MPa; (7) after demolding and taking out the tile, heating, wherein the temperature and time of the heating are 400-500℃ and 20-30 min respectively, and after cooling, placing for 24-30 h to obtain the cement tile, and using water to spray for 3-7 days continuously, spraying once a day to make the surface of the cement tile wet; The preparation method of the wear-resistant filler in steps (2) and (3) comprises the following steps: A1: mixing graphene oxide powder with anhydrous ethanol, ultrasonicating for 1-2 h, then adding 3-aminopropyl triethoxysilane to stir to form a mixture b; A2: refluxing the mixture b, washing the obtained solid phase with distilled water for 3-5 times, and drying to obtain modified graphene; A3: mixing the modified graphene with an emulsifier, heating, stirring, and shearing to obtain an emulsion, namely the wear-resistant filler; The ratio of graphene oxide powder, absolute ethyl alcohol and 3-aminopropyl triethoxysilane in step A1 is 1g:30mL:1mL, the time of heating reflux in step A2 is 3-4h, the temperature and time of drying are 100-110℃ and 30-50min respectively; the ratio of modified graphene and emulsifier in step A3 is 1-2g:3mL, wherein the emulsifier is composed of polyvinylpyrrolidone, polyvinyl alcohol and distilled water with a mass ratio of 1:1:2, 1:1.5:2 or 1:2:2, the temperature rising is to 120-130℃, and the rotating speed and time of stirring and shearing are 800-1000r / min and 10-20min respectively.

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