CN110759709A - Coal gangue-based artificial inkstone and preparation method thereof - Google Patents

Coal gangue-based artificial inkstone and preparation method thereof Download PDF

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Publication number
CN110759709A
CN110759709A CN201810822752.4A CN201810822752A CN110759709A CN 110759709 A CN110759709 A CN 110759709A CN 201810822752 A CN201810822752 A CN 201810822752A CN 110759709 A CN110759709 A CN 110759709A
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parts
inkstone
coal gangue
mixture
powder
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胡海涌
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Anhui Jixi Xulong Mountain Villa Four Treasures Culture Co Ltd
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Anhui Jixi Xulong Mountain Villa Four Treasures Culture Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L27/00—Ink stands
    • C—CHEMISTRY; METALLURGY
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    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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Abstract

The invention discloses an artificial inkstone based on coal gangue and a preparation method thereof, wherein the artificial inkstone comprises the following raw materials in parts by weight: 60-80 parts of coal gangue powder, 15-25 parts of calcite powder, 10-20 parts of potassium feldspar powder, 5-10 parts of clay, 3-7 parts of zirconia ceramic particles, 3-5 parts of nano titanium dioxide, 1-3 parts of hydrophilic polyurethane resin, 0.5-1.5 parts of nano cobalt modified epoxy resin, 0.2-0.6 part of curing agent and 120 parts of deionized water. The artificial inkstone based on the coal gangue solves the problem that the coal gangue is difficult to treat, changes waste into valuable, reduces the production cost of the inkstone, and has the advantages of fine and tough texture, mild and soft luster, low water absorption rate, higher hardness, toughness and wear resistance and wide application prospect.

Description

Coal gangue-based artificial inkstone and preparation method thereof
Technical Field
The invention relates to the technical field of inkstones, in particular to an artificial inkstone based on coal gangue and a preparation method thereof.
Background
The inkstone is also called as a Chinese handicraft, and the inkstone, a pen, ink and paper are called as the four treasures of the Chinese traditional study, and is a necessary tool for Chinese calligraphy.
The manufacturing of the inkstone needs a large amount of stones, and the existing stones such as calcite, marble and the like are expensive and difficult to meet the popular demands. The existing coal gangue is huge in quantity and low in price, and the utilization of the coal gangue for manufacturing the inkstone has wide application prospect.
Based on the artificial inkstone and the preparation method thereof, the artificial inkstone based on the coal gangue solves the problem that the coal gangue is difficult to treat, the production cost of the inkstone is reduced, and the prepared inkstone is fine and tough in texture, mild and soft in luster and excellent in mechanical property.
Disclosure of Invention
The invention aims to provide an artificial inkstone based on coal gangue and a preparation method thereof, which not only solve the problem of difficulty in processing the coal gangue, but also reduce the production cost of the inkstone, and the prepared inkstone has the advantages of fine and tough texture, mild and soft luster, low water absorption rate and excellent mechanical property.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the artificial inkstone based on the coal gangue comprises the following raw materials in parts by weight: 60-80 parts of coal gangue powder, 15-25 parts of calcite powder, 10-20 parts of potassium feldspar powder, 5-10 parts of clay, 3-7 parts of zirconia ceramic particles, 3-5 parts of nano titanium dioxide, 1-3 parts of hydrophilic polyurethane resin, 0.5-1.5 parts of nano cobalt modified epoxy resin, 0.2-0.6 part of curing agent and 120 parts of deionized water.
Further, the artificial inkstone comprises the following raw materials in parts by weight: 70 parts of coal gangue powder, 20 parts of calcite powder, 15 parts of potassium feldspar powder, 7.5 parts of clay, 5 parts of zirconia ceramic particles, 4 parts of nano titanium dioxide, 2 parts of hydrophilic polyurethane resin, 1 part of nano cobalt modified epoxy resin, 0.4 part of curing agent and 110 parts of deionized water.
Further, the nano cobalt modified epoxy resin is composed of the following substances in parts by weight: 18-22 parts of cobalt chloride hexahydrate, 20-24 parts of hydrazine hydrate, 30-35 parts of sodium hydroxide and 650 parts of epoxy resin 600-.
Further, the preparation steps of the nano solid modified epoxy resin are as follows:
(1) dissolving cobalt chloride hexahydrate into an ethanol solution to prepare a solution A, wherein the concentration of nickel ions in the solution A is 0.14-0.16 mol/L;
(2) adding sodium hydroxide and hydrazine hydrate into the solution A obtained in the step (1) and stirring, stirring and reacting for 2-3h at the rotating speed of 900-;
(3) and (3) adding the nano cobalt obtained in the step (2) into ethanol, dispersing the nano cobalt uniformly by ultrasonic oscillation, then adding the nano cobalt into an epoxy resin solution, mixing for 50-60min, and carrying out vacuum drying to remove excessive ethanol in the nano cobalt modified resin, thereby obtaining the nano cobalt modified epoxy resin.
Further, the curing agent is benzoyl peroxide.
The invention also provides a preparation method of the artificial inkstone based on the coal gangue, which comprises the following steps:
(1) weighing coal gangue powder, calcite powder, potassium feldspar powder, clay and zirconia ceramic particles according to the proportion, and uniformly mixing to generate a mixture a;
(2) putting the mixture a in the previous step into a ball mill, grinding the mixture a to 100 meshes, and mixing the ground fine powder with deionized water to generate a mixture b;
(3) adding nano titanium dioxide into the mixture b obtained in the step (2), uniformly stirring, then adding hydrophilic polyurethane resin and nano cobalt modified epoxy resin, and uniformly stirring to obtain a mixture c;
(4) adding a curing agent into the mixture c obtained in the step (3), stirring uniformly, transferring into a drying oven, heating to 100 ℃, and drying for 3 hours at 100 ℃ to obtain a mixture d;
(5) filling the mixture d in a die, punching by using a film pressing machine, airing the blank for 48 hours after punching, engraving, grinding and trimming the blank;
(6) placing the inkstone blank in the step (5) into a heating kiln, firing for 20 hours at the temperature of 800-900 ℃, and naturally cooling and discharging from the kiln;
(7) and grinding the inkstone to reach the standard, and packaging the inkstone into a finished product after full waxing and polishing.
Further, the grinding speed of the ball mill in the step (2) is 300-400 rpm.
Further, the stamping pressing density in the step (5) is 2.0-2.4kg/m3。
Compared with the prior art, the invention has the following beneficial effects:
(1) the artificial inkstone based on the coal gangue solves the problem that the coal gangue is difficult to treat, changes waste into valuable, reduces the production cost of the inkstone, and has the advantages of fine and tough texture, mild and soft luster, low water absorption rate, higher hardness, toughness and wear resistance and wide application prospect.
(2) The invention takes the coal gangue as a base material, is supplemented with inorganic fillers such as calcite powder, potassium feldspar powder and clay, is ground into fine powder, so that the components are dispersed more uniformly, the hardness of the inkstone is increased, and the gaps among the inorganic fillers are filled with the nano titanium dioxide, so that the hardness and the wear resistance of the inkstone are further enhanced, the water absorption of the inkstone is reduced, the ink storage time of the inkstone is prolonged, and the addition of the zirconia ceramic particles has a reinforcing effect on the wear resistance and the toughness of the inkstone.
(3) The hydrophilic polyurethane resin added into the ink stone has good adhesive property, so that fillers such as gangue powder, calcite powder, potassium feldspar powder, clay and the like can be combined more tightly, the hardness and toughness of the ink stone are enhanced, the added nano cobalt modified epoxy resin can be matched with the hydrophilic polyurethane resin in a synergistic manner, the hardness and toughness of the ink stone are enhanced together, meanwhile, the nano cobalt modified epoxy resin has activation property, the dispersity of each inorganic filler can be enhanced, the mechanical property of the ink stone is improved, the water absorption rate is reduced, and the ink storage time of the ink stone is prolonged.
Detailed Description
The foregoing aspects of the present invention are described in further detail below by way of examples, but it should not be construed that the scope of the subject matter of the present invention is limited to the following examples, and that all the technologies that can be realized based on the above aspects of the present invention are within the scope of the present invention.
Example 1
The artificial inkstone based on coal gangue comprises the following raw materials in parts by weight: 60 parts of coal gangue powder, 15 parts of calcite powder, 10 parts of potassium feldspar powder, 5 parts of clay, 3 parts of zirconia ceramic particles, 3 parts of nano titanium dioxide, 1 part of hydrophilic polyurethane resin, 0.5 part of nano cobalt modified epoxy resin, 0.2 part of curing agent and 100 parts of deionized water.
The nano cobalt modified epoxy resin comprises the following substances in parts by weight: 18 parts of cobalt chloride hexahydrate, 20 parts of hydrazine hydrate, 30 parts of sodium hydroxide and 600 parts of epoxy resin.
The preparation method of the nano solid modified epoxy resin comprises the following steps:
(1) dissolving cobalt chloride hexahydrate into an ethanol solution to prepare a solution A, wherein the concentration of nickel ions in the solution A is 0.14 mol/L;
(2) adding sodium hydroxide and hydrazine hydrate into the solution A obtained in the step (1), stirring, reacting at the room temperature at the rotating speed of 900r/min for 2 hours, and washing black particles obtained by filtering with filter paper with deionized water and ethanol to obtain nano cobalt powder;
(3) and (3) adding the nano cobalt obtained in the step (2) into ethanol, dispersing the nano cobalt uniformly by ultrasonic oscillation, then adding the nano cobalt into an epoxy resin solution, mixing for 50min, and carrying out vacuum drying to remove excessive ethanol in the nano cobalt modified resin, thereby obtaining the nano cobalt modified epoxy resin.
Wherein the curing agent is benzoyl peroxide.
The invention also provides a preparation method of the artificial inkstone based on the coal gangue, which comprises the following steps:
(1) weighing coal gangue powder, calcite powder, potassium feldspar powder, clay and zirconia ceramic particles according to the proportion, and uniformly mixing to generate a mixture a;
(2) putting the mixture a in the previous step into a ball mill, grinding the mixture a to 100 meshes, and mixing the ground fine powder with deionized water to generate a mixture b;
(3) adding nano titanium dioxide into the mixture b obtained in the step (2), uniformly stirring, then adding hydrophilic polyurethane resin and nano cobalt modified epoxy resin, and uniformly stirring to obtain a mixture c;
(4) adding a curing agent into the mixture c obtained in the step (3), stirring uniformly, transferring into a drying oven, heating to 100 ℃, and drying for 3 hours at 100 ℃ to obtain a mixture d;
(5) filling the mixture d in a die, punching by using a film pressing machine, airing the blank for 48 hours after punching, engraving, grinding and trimming the blank;
(6) putting the inkstone blank obtained in the step (5) into a heating kiln, firing for 20 hours at the temperature of 800 ℃, and naturally cooling and discharging from the kiln;
(7) and grinding the inkstone to reach the standard, and packaging the inkstone into a finished product after full waxing and polishing.
Wherein, the grinding speed of the ball mill in the step (2) is 300 rpm.
Wherein the stamping pressing density in the step (5) is 2.0-2.4kg/m3。
Example 2
The artificial inkstone based on coal gangue comprises the following raw materials in parts by weight: 80 parts of coal gangue powder, 25 parts of calcite powder, 20 parts of potassium feldspar powder, 10 parts of clay, 7 parts of zirconia ceramic particles, 5 parts of nano titanium dioxide, 3 parts of hydrophilic polyurethane resin, 1.5 parts of nano cobalt modified epoxy resin, 0.6 part of curing agent and 120 parts of deionized water.
The nano cobalt modified epoxy resin comprises the following substances in parts by weight: 22 parts of cobalt chloride hexahydrate, 24 parts of hydrazine hydrate, 35 parts of sodium hydroxide and 650 parts of epoxy resin.
The preparation method of the nano solid modified epoxy resin comprises the following steps:
(1) dissolving cobalt chloride hexahydrate into an ethanol solution to prepare a solution A, wherein the concentration of nickel ions in the solution A is 0.16 mol/L;
(2) adding sodium hydroxide and hydrazine hydrate into the solution A obtained in the step (1), stirring and reacting at the room temperature at the rotating speed of 1000r/min for 3 hours, and washing black particles obtained by filtering with filter paper by using deionized water and ethanol to obtain nano cobalt powder;
(3) and (3) adding the nano cobalt obtained in the step (2) into ethanol, dispersing the nano cobalt uniformly by ultrasonic oscillation, then adding the nano cobalt into an epoxy resin solution, mixing for 60min, and carrying out vacuum drying to remove excessive ethanol in the nano cobalt modified resin, thereby obtaining the nano cobalt modified epoxy resin.
Wherein the curing agent is benzoyl peroxide.
The invention also provides a preparation method of the artificial inkstone based on the coal gangue, which comprises the following steps:
(1) weighing coal gangue powder, calcite powder, potassium feldspar powder, clay and zirconia ceramic particles according to the proportion, and uniformly mixing to generate a mixture a;
(2) putting the mixture a in the previous step into a ball mill, grinding the mixture a to 100 meshes, and mixing the ground fine powder with deionized water to generate a mixture b;
(3) adding nano titanium dioxide into the mixture b obtained in the step (2), uniformly stirring, then adding hydrophilic polyurethane resin and nano cobalt modified epoxy resin, and uniformly stirring to obtain a mixture c;
(4) adding a curing agent into the mixture c obtained in the step (3), stirring uniformly, transferring into a drying oven, heating to 100 ℃, and drying for 3 hours at 100 ℃ to obtain a mixture d;
(5) filling the mixture d in a die, punching by using a film pressing machine, airing the blank for 48 hours after punching, engraving, grinding and trimming the blank;
(6) putting the inkstone blank obtained in the step (5) into a heating kiln, firing for 20 hours at the temperature of 900 ℃, and naturally cooling and discharging from the kiln;
(7) and grinding the inkstone to reach the standard, and packaging the inkstone into a finished product after full waxing and polishing.
Wherein, the grinding speed of the ball mill in the step (2) is 400 rpm.
Wherein the stamping pressing density in the step (5) is 2.0-2.4kg/m3。
Example 3
The artificial inkstone based on coal gangue comprises the following raw materials in parts by weight: 70 parts of coal gangue powder, 20 parts of calcite powder, 15 parts of potassium feldspar powder, 7.5 parts of clay, 5 parts of zirconia ceramic particles, 4 parts of nano titanium dioxide, 2 parts of hydrophilic polyurethane resin, 1 part of nano cobalt modified epoxy resin, 0.4 part of curing agent and 110 parts of deionized water.
The nano cobalt modified epoxy resin comprises the following substances in parts by weight: 20 parts of cobalt chloride hexahydrate, 22 parts of hydrazine hydrate, 33 parts of sodium hydroxide and 625 parts of epoxy resin.
The preparation method of the nano solid modified epoxy resin comprises the following steps:
(1) dissolving cobalt chloride hexahydrate into an ethanol solution to prepare a solution A, wherein the concentration of nickel ions in the solution A is 0.15 mol/L;
(2) adding sodium hydroxide and hydrazine hydrate into the solution A obtained in the step (1), stirring, reacting at room temperature at a rotation speed of 950r/min for 2.5h, and washing black particles obtained by filtering with filter paper with deionized water and ethanol to obtain nano cobalt powder;
(3) and (3) adding the nano cobalt obtained in the step (2) into ethanol, dispersing the nano cobalt uniformly by ultrasonic oscillation, then adding the nano cobalt into an epoxy resin solution, mixing for 55min, and carrying out vacuum drying to remove excessive ethanol in the nano cobalt modified resin, thereby obtaining the nano cobalt modified epoxy resin.
Wherein the curing agent is benzoyl peroxide.
The invention also provides a preparation method of the artificial inkstone based on the coal gangue, which comprises the following steps:
(1) weighing coal gangue powder, calcite powder, potassium feldspar powder, clay and zirconia ceramic particles according to the proportion, and uniformly mixing to generate a mixture a;
(2) putting the mixture a in the previous step into a ball mill, grinding the mixture a to 100 meshes, and mixing the ground fine powder with deionized water to generate a mixture b;
(3) adding nano titanium dioxide into the mixture b obtained in the step (2), uniformly stirring, then adding hydrophilic polyurethane resin and nano cobalt modified epoxy resin, and uniformly stirring to obtain a mixture c;
(4) adding a curing agent into the mixture c obtained in the step (3), stirring uniformly, transferring into a drying oven, heating to 100 ℃, and drying for 3 hours at 100 ℃ to obtain a mixture d;
(5) filling the mixture d in a die, punching by using a film pressing machine, airing the blank for 48 hours after punching, engraving, grinding and trimming the blank;
(6) putting the inkstone blank obtained in the step (5) into a heating kiln, firing for 20 hours at 950 ℃, and naturally cooling and discharging from the kiln;
(7) and grinding the inkstone to reach the standard, and packaging the inkstone into a finished product after full waxing and polishing.
Wherein, the grinding speed of the ball mill in the step (2) is 350 rpm.
Wherein the stamping pressing density in the step (5) is 2.0-2.4kg/m3。
Example 4
The artificial inkstone based on coal gangue comprises the following raw materials in parts by weight: 65 parts of coal gangue powder, 18 parts of calcite powder, 13 parts of potassium feldspar powder, 6 parts of clay, 4 parts of zirconia ceramic particles, 3.5 parts of nano titanium dioxide, 1.5 parts of hydrophilic polyurethane resin, 0.8 part of nano cobalt modified epoxy resin, 0.3 part of curing agent and 105 parts of deionized water.
The nano cobalt modified epoxy resin comprises the following substances in parts by weight: 19 parts of cobalt chloride hexahydrate, 21 parts of hydrazine hydrate, 31 parts of sodium hydroxide and 610 parts of epoxy resin.
The preparation method of the nano solid modified epoxy resin comprises the following steps:
(1) dissolving cobalt chloride hexahydrate into an ethanol solution to prepare a solution A, wherein the concentration of nickel ions in the solution A is 0.15 mol/L;
(2) adding sodium hydroxide and hydrazine hydrate into the solution A obtained in the step (1), stirring, reacting at room temperature at a rotating speed of 920r/min for 2-3h, and washing black particles obtained by filtering with filter paper with deionized water and ethanol to obtain nano cobalt powder;
(3) and (3) adding the nano cobalt obtained in the step (2) into ethanol, dispersing the nano cobalt uniformly by ultrasonic oscillation, then adding the nano cobalt into an epoxy resin solution, mixing for 53min, and carrying out vacuum drying to remove excessive ethanol in the nano cobalt modified resin, thereby obtaining the nano cobalt modified epoxy resin.
Wherein the curing agent is benzoyl peroxide.
The invention also provides a preparation method of the artificial inkstone based on the coal gangue, which comprises the following steps:
(1) weighing coal gangue powder, calcite powder, potassium feldspar powder, clay and zirconia ceramic particles according to the proportion, and uniformly mixing to generate a mixture a;
(2) putting the mixture a in the previous step into a ball mill, grinding the mixture a to 100 meshes, and mixing the ground fine powder with deionized water to generate a mixture b;
(3) adding nano titanium dioxide into the mixture b obtained in the step (2), uniformly stirring, then adding hydrophilic polyurethane resin and nano cobalt modified epoxy resin, and uniformly stirring to obtain a mixture c;
(4) adding a curing agent into the mixture c obtained in the step (3), stirring uniformly, transferring into a drying oven, heating to 100 ℃, and drying for 3 hours at 100 ℃ to obtain a mixture d;
(5) filling the mixture d in a die, punching by using a film pressing machine, airing the blank for 48 hours after punching, engraving, grinding and trimming the blank;
(6) putting the inkstone blank obtained in the step (5) into a heating kiln, firing for 20 hours at 880 ℃, and naturally cooling and discharging from the kiln;
(7) and grinding the inkstone to reach the standard, and packaging the inkstone into a finished product after full waxing and polishing.
Wherein, the grinding speed of the ball mill in the step (2) is 330 rpm.
Wherein the stamping pressing density in the step (5) is 2.0-2.4kg/m3。
Example 5
The artificial inkstone based on coal gangue comprises the following raw materials in parts by weight: 75 parts of coal gangue powder, 22 parts of calcite powder, 18 parts of potassium feldspar powder, 9 parts of clay, 6 parts of zirconia ceramic particles, 4.5 parts of nano titanium dioxide, 2.5 parts of hydrophilic polyurethane resin, 1.2 parts of nano cobalt modified epoxy resin, 0.5 part of curing agent and 115 parts of deionized water.
The nano cobalt modified epoxy resin comprises the following substances in parts by weight: 21 parts of cobalt chloride hexahydrate, 23 parts of hydrazine hydrate, 32 parts of sodium hydroxide and 640 parts of epoxy resin.
The preparation method of the nano solid modified epoxy resin comprises the following steps:
(1) dissolving cobalt chloride hexahydrate into an ethanol solution to prepare a solution A, wherein the concentration of nickel ions in the solution A is 0.16 mol/L;
(2) adding sodium hydroxide and hydrazine hydrate into the solution A obtained in the step (1), stirring, reacting at room temperature at the rotating speed of 980r/min for 2.8h, and washing black particles obtained by filtering with filter paper with deionized water and ethanol to obtain nano cobalt powder;
(3) and (3) adding the nano cobalt obtained in the step (2) into ethanol, dispersing the nano cobalt uniformly by ultrasonic oscillation, then adding the nano cobalt into an epoxy resin solution, mixing for 58min, and carrying out vacuum drying to remove excessive ethanol in the nano cobalt modified resin, thereby obtaining the nano cobalt modified epoxy resin.
Wherein the curing agent is benzoyl peroxide.
The invention also provides a preparation method of the artificial inkstone based on the coal gangue, which comprises the following steps:
(1) weighing coal gangue powder, calcite powder, potassium feldspar powder, clay and zirconia ceramic particles according to the proportion, and uniformly mixing to generate a mixture a;
(2) putting the mixture a in the previous step into a ball mill, grinding the mixture a to 100 meshes, and mixing the ground fine powder with deionized water to generate a mixture b;
(3) adding nano titanium dioxide into the mixture b obtained in the step (2), uniformly stirring, then adding hydrophilic polyurethane resin and nano cobalt modified epoxy resin, and uniformly stirring to obtain a mixture c;
(4) adding a curing agent into the mixture c obtained in the step (3), stirring uniformly, transferring into a drying oven, heating to 100 ℃, and drying for 3 hours at 100 ℃ to obtain a mixture d;
(5) filling the mixture d in a die, punching by using a film pressing machine, airing the blank for 48 hours after punching, engraving, grinding and trimming the blank;
(6) putting the inkstone blank obtained in the step (5) into a heating kiln, firing for 20 hours at 880 ℃, and naturally cooling and discharging from the kiln;
(7) and grinding the inkstone to reach the standard, and packaging the inkstone into a finished product after full waxing and polishing.
Wherein, the grinding speed of the ball mill in the step (2) is 380 rpm.
Wherein the stamping pressing density in the step (5) is 2.0-2.4kg/m3。
Comparative example 1
The raw material content and the preparation steps are the same as those of example 1 except that the nano titanium dioxide is not added.
Comparative example 2
The raw material contents and preparation procedure were the same as in example 1 except that no hydrophilic polyurethane resin was added.
Comparative example 3
The raw material content and the preparation steps are the same as those of the example 1 except that the nano cobalt modified epoxy resin is not added.
Experimental example 1
The artificial inkstones of examples 1 to 5 and comparative examples 1 to 3 according to the present invention were tested for their Mohs hardness, strength, and water absorption as shown in Table 1.
TABLE 1
Figure BDA0001741701360000091
As can be seen from table 1, the artificial inkstone of the present invention has excellent molar hardness, strength, and water absorption rate, and as can be seen from comparative examples 1 to 3, the molar hardness, strength, and water absorption rate of the silica sand inkstone were significantly improved and reduced by adding nano titanium dioxide, hydrophilic polyurethane resin, and nano cobalt-modified epoxy resin to the artificial inkstone.
Experimental example 2
Silica sand ink storage duration test
The artificial ink storage times prepared in examples 1 to 5 and comparative examples 1 to 3 were subjected to a simulation test, and the specific test results are shown in table 2.
TABLE 2
As can be seen from table 2, the artificial inkstone of the present invention has a long ink storage time, and as can be seen from comparative examples 1 to 3, the artificial inkstone can significantly improve the long storage time of silica sand graphite by adding nano titanium dioxide, hydrophilic polyurethane resin and nano cobalt-modified epoxy resin.
In conclusion, the artificial inkstone based on the coal gangue solves the problem that the coal gangue is difficult to treat, changes waste into valuable, reduces the production cost of the inkstone, and has the advantages of fine and tough texture, mild and soft luster, low water absorption rate, higher hardness, toughness and wear resistance and wide application prospect.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The coal gangue-based artificial inkstone is characterized by comprising the following raw materials in parts by weight: 60-80 parts of coal gangue powder, 15-25 parts of calcite powder, 10-20 parts of potassium feldspar powder, 5-10 parts of clay, 3-7 parts of zirconia ceramic particles, 3-5 parts of nano titanium dioxide, 1-3 parts of hydrophilic polyurethane resin, 0.5-1.5 parts of nano cobalt modified epoxy resin, 0.2-0.6 part of curing agent and 120 parts of deionized water.
2. The coal gangue-based artificial inkstone of claim 1, wherein the artificial inkstone comprises the following raw materials in parts by weight: 70 parts of coal gangue powder, 20 parts of calcite powder, 15 parts of potassium feldspar powder, 7.5 parts of clay, 5 parts of zirconia ceramic particles, 4 parts of nano titanium dioxide, 2 parts of hydrophilic polyurethane resin, 1 part of nano cobalt modified epoxy resin, 0.4 part of curing agent and 110 parts of deionized water.
3. The coal gangue-based artificial inkstone of claim 1, wherein the nano cobalt-modified epoxy resin consists of the following substances in parts by weight: 18-22 parts of cobalt chloride hexahydrate, 20-24 parts of hydrazine hydrate, 30-35 parts of sodium hydroxide and 650 parts of epoxy resin 600-.
4. The coal gangue-based artificial inkstone of claim 3, wherein the nano cobalt-modified epoxy resin is prepared by the following steps:
(1) dissolving cobalt chloride hexahydrate into an ethanol solution to prepare a solution A, wherein the concentration of nickel ions in the solution A is 0.14-0.16 mol/L;
(2) adding sodium hydroxide and hydrazine hydrate into the solution A obtained in the step (1) and stirring, stirring and reacting for 2-3h at the rotating speed of 900-;
(3) and (3) adding the nano cobalt obtained in the step (2) into ethanol, dispersing the nano cobalt uniformly by ultrasonic oscillation, then adding the nano cobalt into an epoxy resin solution, mixing for 50-60min, and carrying out vacuum drying to remove excessive ethanol in the nano cobalt modified resin, thereby obtaining the nano cobalt modified epoxy resin.
5. The coal gangue-based artificial inkstone of claim 1, wherein the curing agent is benzoyl peroxide.
6. The preparation method of the artificial inkstone based on coal gangue as claimed in any one of claims 1 to 5, wherein the method comprises the following steps:
(1) weighing coal gangue powder, calcite powder, potassium feldspar powder, clay and zirconia ceramic particles according to the proportion, and uniformly mixing to generate a mixture a;
(2) putting the mixture a in the previous step into a ball mill, grinding the mixture a to 100 meshes, and mixing the ground fine powder with deionized water to generate a mixture b;
(3) adding nano titanium dioxide into the mixture b obtained in the step (2), uniformly stirring, then adding hydrophilic polyurethane resin and nano cobalt modified epoxy resin, and uniformly stirring to obtain a mixture c;
(4) adding a curing agent into the mixture c obtained in the step (3), stirring uniformly, transferring into a drying oven, heating to 100 ℃, and drying for 3 hours at 100 ℃ to obtain a mixture d;
(5) filling the mixture d in a die, punching by using a film pressing machine, airing the blank for 48 hours after punching, engraving, grinding and trimming the blank;
(6) placing the inkstone blank in the step (5) into a heating kiln, firing for 20 hours at the temperature of 800-900 ℃, and naturally cooling and discharging from the kiln;
(7) and grinding the inkstone to reach the standard, and packaging the inkstone into a finished product after full waxing and polishing.
7. The method for preparing the artificial inkstone based on coal gangue as claimed in claim 6, wherein the grinding speed of the ball mill in the step (2) is 300-400 rpm.
8. The preparation method of the artificial inkstone based on coal gangue as claimed in claim 6, wherein the stamping density in the step (5) is 2.0-2.4kg/m3。
CN201810822752.4A 2018-07-25 2018-07-25 Coal gangue-based artificial inkstone and preparation method thereof Pending CN110759709A (en)

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