CN114890818B - High-brightness ceramic tile and production process thereof - Google Patents
High-brightness ceramic tile and production process thereof Download PDFInfo
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- CN114890818B CN114890818B CN202210600435.4A CN202210600435A CN114890818B CN 114890818 B CN114890818 B CN 114890818B CN 202210600435 A CN202210600435 A CN 202210600435A CN 114890818 B CN114890818 B CN 114890818B
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Abstract
The application relates to the technical field of tile production, and particularly discloses a high-brightness tile and a production process thereof. The ceramic tile comprises a green body and glaze materials coated on the green body, wherein the glaze materials comprise the following raw materials in parts by weight: 20-45 parts of potassium granite, 15-30 parts of wollastonite, 10-20 parts of gold sand, 8-15 parts of zircon sand, 8-20 parts of modified nano-alumina, 2-8 parts of sodium carboxymethylcellulose and 45-60 parts of water; the preparation method comprises the following steps: uniformly mixing the blank raw materials, and grinding to obtain a blank; uniformly mixing all raw materials of the glaze except water, grinding, adding water, and uniformly mixing to obtain the glaze; pressing the blank into a green body, and drying to obtain a green body; uniformly coating the glaze on the green body, drying to obtain a preformed ceramic tile, firing the preformed ceramic tile, and cooling to obtain the ceramic tile with high brightness. The high-brightness ceramic tile has the advantage of improving the brightness of the ceramic tile through the synergistic effect between the raw materials.
Description
Technical Field
The application relates to the technical field of tile production, in particular to a high-brightness tile and a production process thereof.
Background
The ceramic tile is made of refractory metal oxide and semi-metal oxide, and through grinding, mixing, pressing, glazing, sintering, etc. it is made into acid and alkali resistant ceramic or stone material. The glazed tile is one of ceramic tiles, and consists of a blank and a glazed surface on the surface, and the surface of the glazed tile can be provided with various patterns and figures, so that the beautiful appearance of the ceramic tile can be improved.
Glazed tiles are the most common tile types in decoration, and are widely used for wall surface and floor decoration due to rich color patterns and strong antifouling capability, and can be classified into smooth glazed tiles and matte glazed tiles according to different gloss. However, the brightness of the glazed surface of the glazed tile is not high at present, and the use effect is affected.
Disclosure of Invention
In order to improve the brightness of the ceramic tile, the application provides a ceramic tile with high brightness and a production process thereof.
In a first aspect, the present application provides a tile with high brightness, which adopts the following technical scheme:
the ceramic tile with high brightness comprises a blank body and glaze materials coated on the blank body, wherein the glaze materials comprise the following raw materials in parts by weight: 20-45 parts of potassium granite, 15-30 parts of wollastonite, 10-20 parts of gold sand, 8-15 parts of zircon sand, 8-20 parts of modified nano-alumina, 2-8 parts of sodium carboxymethylcellulose and 45-60 parts of water; wherein the modified nano alumina is prepared by modifying nano alumina by tetrabutyl titanate.
Through adopting above-mentioned technical scheme, the ceramic tile of high brightness of this application, through the cooperation lease between each raw materials, not only can make the ceramic tile keep good breaking strength and morse hardness level, can also improve the glossiness of ceramic tile, has improved the luminance of ceramic tile promptly, and wherein, breaking strength is 1955-1970N, and the morse hardness level is 3-5, and glossiness is 63-98.
The ceramic tile is made of a green body and glaze materials coated on the green body, and the brightness and glossiness of the ceramic tile are improved through the glaze materials. The higher the reflectivity of the light is, the more the brightness of the ceramic tile can be represented. The potassium granite contains alumina, so that the content of alumina in the glaze can be increased, the reflectivity of the alumina is higher, the brightness of the ceramic tile can be increased, the waste utilization is realized, and the resources and the environment are saved. The wollastonite contains silicon dioxide, so that the smoothness of the glaze can be improved, and the brightness of the glaze can be improved. The gold sand stone is quartz stone containing mica sheets or iron oxide mineral fine sheets, has sparkling golden star-like brilliance, has certain reflectivity, and can further improve the brightness of the ceramic tile when being applied to raw materials of glaze. The zircon sand has diamond luster and higher reflectivity, and can improve the glossiness of the glaze, thereby improving the brightness of the ceramic tile.
The reflectivity of the nano aluminum oxide is high, and after the nano aluminum oxide is modified by tetrabutyl titanate, titanium dioxide can be attached to the nano aluminum oxide, and the titanium dioxide has high reflectivity to light, so that the dual reflectivity to light is increased, the glossiness of glaze is further improved, and the brightness of the ceramic tile is further improved. The sodium hydroxymethyl cellulose is used as a binder in the glaze, so that the rheological property of the glaze can be effectively regulated, the dispersibility of the glaze is improved, and the glazing is facilitated.
As preferable: the glaze comprises the following raw materials in parts by weight: 30-40 parts of potassium granite, 18-25 parts of wollastonite, 12-18 parts of gold sand, 10-12 parts of zircon sand, 10-16 parts of modified nano-alumina, 4-6 parts of sodium carboxymethylcellulose and 50-56 parts of water.
By adopting the technical scheme, the mixing amount of the potassium long granite, wollastonite, gold sand, zircon sand, modified nano alumina, sodium carboxymethyl cellulose and water is optimized, so that the raw materials can play roles, and the brightness of the ceramic tile is improved.
As preferable: the blank comprises the following raw materials in parts by weight: 20-40 parts of kaolin, 10-20 parts of quartz stone, 10-30 parts of talcum powder, 8-15 parts of orthoclase, and 5-12 parts of fly ash.
By adopting the technical scheme, the kaolin is a nonmetallic mineral product, has the characteristics of cohesiveness, plasticity and the like, and can improve the stability and sintering strength of the green body when applied to the raw materials of the ceramic tile green body; the quartz stone can enhance the mechanical strength of the blank, has an adjusting effect on the plasticity of the blank, and can also reduce the shrinkage, shorten the drying time and reduce the deformation of the blank; the talcum powder has the functions of thickening, tackifying and water retention, has finer powder quality, can be filled between the raw materials, and enhances the strength of a blank body; the orthoclase hardness is larger, the granularity of the fly ash is fine, the sinterability is good, and the orthoclase and the fly ash are applied to the raw materials of the green body, so that the strength of the ceramic tile can be increased.
As preferable: the modified nano alumina is prepared by the following method: putting nano alumina into toluene, performing ultrasonic dispersion, then adding tetrabutyl titanate, uniformly stirring, filtering, washing solid matters, and drying to obtain the modified nano alumina.
Further, the modified nano alumina is prepared by the following method: putting nano alumina into toluene, performing ultrasonic dispersion for 30-40min, then adding tetrabutyl titanate, stirring for 20-30min, filtering, washing solid with ethanol solution for 3-5 times, and drying to obtain modified nano alumina;
wherein the addition amount of toluene in each 1g of nano alumina is 9-11mL, and the mass fraction of ethanol solution is 70-80%.
As preferable: the weight ratio of the nano aluminum oxide to the tetrabutyl titanate is 1: (0.4-0.6).
By adopting the technical scheme, the preparation method is adopted to prepare the modified nano aluminum oxide, so that the tetrabutyl titanate is convenient to modify the nano aluminum oxide better, titanium dioxide is attached to the nano aluminum oxide, the adding amount of the tetrabutyl titanate is limited, the reflectivity can be further improved, and the brightness of the ceramic tile is further improved.
As preferable: the modified nano alumina is pretreated by the following method before use: adding a silane coupling agent into the ethanol solution, regulating the pH value, stirring uniformly, then adding modified nano alumina, heating to 40-50 ℃, reacting for 3-5h, filtering, washing solid matters, and drying to obtain the pretreated modified nano alumina.
Further, the modified nano-alumina is pretreated before use by the following method: adding a silane coupling agent into an ethanol solution, regulating the pH value to 3-4 by using hydrochloric acid, stirring for 1-2h, then adding modified nano alumina, heating to 40-50 ℃, reacting for 3-5h, filtering, washing a solid with toluene for 3-5 times, and drying to obtain pretreated modified nano alumina;
wherein the mass fraction of the ethanol solution is 70-80%, and the weight ratio of the ethanol solution, the silane coupling agent and the nano alumina is (4-6): (1-3): 1.
through adopting above-mentioned technical scheme, nanometer alumina's specific surface energy is big, produces self agglomeration easily, adopts silane coupling agent to modify nanometer alumina, can reduce nanometer alumina's specific surface energy, reduces nanometer alumina and produces the agglomeration phenomenon, does benefit to nanometer alumina dispersed's more even, and the better performance of being convenient for is convenient for improve luminance.
As preferable: the nano alumina is alpha-nano alumina.
By adopting the technical scheme, the alpha-nano alumina is commonly called corundum, the crystal form of the corundum is barrel, column or plate, most of crystal forms are complete, and the corundum has glass luster, thereby being beneficial to improving the brightness of the ceramic tile.
In a second aspect, the present application provides a process for producing a high-brightness tile, which adopts the following technical scheme:
a production process of a high-brightness ceramic tile comprises the following steps:
s1: uniformly mixing kaolin, quartz stone, talcum powder, orthofeldspar and fly ash, and grinding to obtain a blank;
s2: uniformly mixing potassium granite, wollastonite, gold sand, zircon sand, modified nano alumina and sodium hydroxymethyl cellulose, grinding, adding water, and uniformly stirring to obtain glaze;
s3: pressing the blank into a green body, and drying to obtain a green body;
s4: uniformly coating the glaze on the green body, drying to obtain a preformed ceramic tile, firing the preformed ceramic tile, and cooling to obtain the ceramic tile with high brightness.
Further, a production process of the high-brightness ceramic tile comprises the following steps:
s1: mixing kaolin, quartz, talcum powder, orthofeldspar and fly ash, stirring for 1-2h, and grinding until the average particle size is 250 meshes to obtain a blank;
s2: mixing potassium granite, wollastonite, gold sand, zircon sand, modified nano alumina and sodium hydroxymethyl cellulose, stirring for 40-50min, grinding to an average particle size of 100 meshes, adding water, and stirring for 2-3h to obtain glaze;
s3: pressing the blank into a green body, and drying to obtain a green body;
s4: uniformly coating the glaze on the green body with the coating amount of 40-60g/m 2 And (3) drying to obtain a preformed ceramic tile, firing the preformed ceramic tile, and cooling to obtain the ceramic tile with high brightness.
As preferable: the firing temperature in the step S4 is 1150-1200 ℃ and the firing time is 60-70min.
Through adopting above-mentioned technical scheme, at first each raw materials with the body mix evenly and grind, again each raw materials with the glaze mix evenly and grind, be convenient for make the more even of mixing between each raw materials of body and glaze, be convenient for each raw materials better play effect, then coat the glaze on the body, make the ceramic tile after firing, cooling, be convenient for improve the luminance of ceramic tile.
In summary, the present application includes at least one of the following beneficial technical effects:
1. because tetrabutyl titanate is adopted to modify nano aluminum oxide in the application, the nano aluminum oxide has certain reflectivity, titanium dioxide is attached to the surface after modification, the reflectivity to light is further enhanced, the brightness of glaze is enhanced, the damage strength can reach 1970N, the Mohs hardness level can reach 5, and the glossiness can reach 98 degrees.
2. The preferred nano alumina in the application adopts the silane coupling agent to pretreat the nano alumina before use, the specific surface energy of the nano alumina is large, self agglomeration is easy to generate, and the specific surface energy of the nano alumina can be reduced after the silane coupling agent is used for modifying the nano alumina, so that the agglomeration phenomenon is reduced, the dispersion of the nano alumina is facilitated, and the effect is conveniently exerted.
Detailed Description
The present application is described in further detail below in conjunction with the detailed description.
Raw materials
The CAS number of the potassium granite is 68476-25-5; wollastonite has whiteness of 60% and purity of 98%; the model of the gold sand stone is 080; the melting point of zircon sand is 2190-2420 ℃, the refractive index is 1.93-2.01, and the grade is first grade; the nano alumina has the product number of 009, the CAS number of 1344-28-1 and the purity of 99 percent; sodium carboxymethylcellulose has a purity of 99.9% and a model YZ-W-09; tetrabutyl titanate has a density of 0.996g/cm 3 The molecular weight is 340, the flash point is 42 ℃, the boiling point is 206 ℃, and the CAS number is 5593-70-4; the covering power of the kaolin is less than or equal to 45g/cm < 3 >, the water soluble matters are less than or equal to 0.5wt percent, the whiteness is 90-95, the melting point is 1785 ℃, and the grade is first grade; the melting point of the quartz stone is 280 ℃, and the silicon dioxide content in the quartz stone is 99%; the silica content in the talcum powder is 60%, and the talcum powder is hardThe degree is 1, and the specific gravity is 2.7-2.8; the density of the orthofeldspar is 2.57g/cm 3 The hardness is 6-6.5; the model of the fly ash is 325, the heat conductivity coefficient is 6.5, the grade is first grade, and the granularity is 200-1300; the silane coupling agent is gamma-propyl trimethoxy silane, CAS number is 2530-85-0, density is 1.055, and product number is 8012.
Preparation example
Preparation example 1
A modified nano-alumina prepared by the following method:
putting 2kg of nano alumina into 20L of toluene, performing ultrasonic dispersion for 35min, then adding 0.8kg of tetrabutyl titanate, stirring for 25min, filtering, washing a solid with an ethanol solution with the mass fraction of 75% for 5 times, and drying to obtain the modified nano alumina.
Preparation example 2
A modified nano alumina was different from that of preparation example 1 in the addition amount of tetrabutyl titanate, and in preparation example 2, the addition amount of tetrabutyl titanate was 1kg.
Preparation example 3
A modified nano alumina was different from that of preparation example 1 in the addition amount of tetrabutyl titanate, and in preparation example 3, the addition amount of tetrabutyl titanate was 1.2kg.
Examples
Example 1
The raw material proportions of the high-brightness ceramic tile are shown in table 1.
The production process of the high-brightness ceramic tile comprises the following steps:
s1: mixing kaolin, quartz, talcum powder, orthofeldspar and fly ash, stirring for 1.5 hours, and grinding until the average particle size is 250 meshes to obtain a blank;
s2: mixing potassium granite, wollastonite, gold sand, zircon sand, modified nano alumina prepared by adopting preparation example 1 and sodium hydroxymethyl cellulose, stirring for 45min, grinding until the average particle size is 100 meshes, adding water, and stirring for 2.5h to obtain glaze;
s3: pressing the blank into a green body, and drying to obtain a green body;
s4: uniformly coating glaze on the blank body, wherein the coating amount is 50g/m 2 And (3) drying to obtain a preformed ceramic tile, then placing the preformed ceramic tile at 1175 ℃ for firing for 65 minutes, and cooling to obtain the ceramic tile with high brightness.
Examples 2 to 5
A ceramic tile with high brightness is different from the ceramic tile glaze in example 1 in the raw material proportion shown in Table 1.
TABLE 1 examples 1-5 weight of raw materials for ceramic tiles (unit: kg)
Examples 6 to 9
A ceramic tile with high brightness is different from example 5 in that the raw material proportion of the ceramic tile glaze is different, and the raw material proportion is shown in table 2.
TABLE 2 weight of raw materials for ceramic tiles of examples 6-9 (unit: kg)
Examples 10 to 11
A high brightness tile differs from example 7 in that the raw material ratios of the tile blanks are different, and the raw material ratios are shown in Table 3.
TABLE 3 weight of raw materials for ceramic tiles of examples 10-11 (unit: kg)
Example 12
A ceramic tile with high brightness is distinguished from example 10 in that the source of the modified nano-alumina in the raw material of the ceramic tile glaze is different, and the modified nano-alumina in example 12 is prepared by adopting the preparation example 2.
Example 13
A ceramic tile with high brightness is distinguished from example 10 in that the source of the modified nano-alumina in the raw material of the ceramic tile glaze is different, and the modified nano-alumina in example 13 is prepared by adopting the preparation example 3.
Example 14
A high brightness tile which differs from example 12 in that the modified nano alumina in the tile glaze raw material is pre-treated prior to use by the following method:
adding 4kg of gamma-propyl trimethoxy silane into 10kg of ethanol solution with the mass fraction of 75%, regulating the pH value to 3.5 by using hydrochloric acid, stirring for 1.5h, then adding 2kg of modified nano alumina, heating to 45 ℃, reacting for 4h, filtering, washing a solid with toluene for 5 times, and drying to obtain the pretreated modified nano alumina.
Comparative example
Comparative example 1
A high brightness tile is distinguished from example 1 in that the modified nano-alumina is replaced by the nano-alumina in equal amount in the tile glaze raw material.
Comparative example 2
A high brightness tile is distinguished from example 1 in that the modified nano alumina in the tile glaze material is beta-nano alumina.
Comparative example 3
A ceramic tile of high brightness is distinguished from example 1 in that no modified nano alumina is added to the raw material of the ceramic tile glaze.
Performance test
The following performance tests were performed on the tiles of examples 1-14 and comparative examples 1-3:
breaking strength: according to GB/T3810.4-2006 section 4 of the ceramic tile test method: determination of breaking modulus and breaking strength the breaking strength of the tile was measured, and the results are shown in table 4.
Mohs hardness scale: the tile was placed stably on a hard support with the glaze facing upwards, the tile surface was scored sequentially with standard ore from small to different mohs' values, the tile surface was scored evenly and vertically with the force applied by the ore blade, the lowest hardness value that just produced an obvious score was taken as the test result, and recorded in table 4.
Gloss level: the gloss of the tile was measured by a gloss meter, and the measurement results are shown in table 4.
TABLE 4 detection results
| Project | Breaking strength (N) | Mohs hardness scale (grade) | Glossiness (degree) |
| Example 1 | 1955 | 3 | 63 |
| Example 2 | 1960 | 4 | 67 |
| Example 3 | 1960 | 4 | 70 |
| Example 4 | 1960 | 4 | 75 |
| Example 5 | 1960 | 4 | 78 |
| Example 6 | 1960 | 4 | 83 |
| Example 7 | 1960 | 4 | 88 |
| Example 8 | 1960 | 4 | 87 |
| Example 9 | 1960 | 4 | 87 |
| Example 10 | 1970 | 5 | 92 |
| Example 11 | 1960 | 4 | 92 |
| Example 12 | 1970 | 5 | 95 |
| Example 13 | 1965 | 5 | 93 |
| Example 14 | 1970 | 5 | 98 |
| Comparative example 1 | 1950 | 3 | 46 |
| Comparative example 2 | 1955 | 3 | 60 |
| Comparative example 3 | 1955 | 3 | 34 |
As can be seen from Table 4, the high-brightness tile of the present application, through the cooperative renting among the raw materials, not only can the tile maintain good breaking strength and Mohs hardness level, but also the glossiness of the tile, i.e. the brightness of the tile, is improved, wherein the breaking strength is 1955-1970N, the Mohs hardness level is 3-5, and the glossiness is 63-98.
As can be seen from the combination of example 1 and comparative example 1, the tile in example 1 has a breaking strength of 1955N, a mohs hardness level of 3 and a glossiness of 63 degrees, which is superior to comparative example 1, indicating that the modified nano alumina is more suitable for the raw materials of the tile, so that the tile maintains excellent mechanical strength, and the glossiness of the tile, i.e., the brightness of the tile is improved.
As can be seen from the combination of example 1 and comparative example 2, the tile in example 1 has a breaking strength of 1955N, a mohs hardness level of 3, and a glossiness of 63 degrees, which is superior to that of comparative example 2, indicating that the nano alumina in the tile raw material is more suitable for the α -nano alumina, and can further improve the glossiness of the tile, that is, the brightness of the tile.
As can be seen from the combination of example 1 and comparative example 3, the tile in example 1 has a breaking strength of 1955N, a mohs hardness level of 3 and a glossiness of 63 degrees, which is superior to comparative example 3, and it is shown that the addition of the modified nano alumina to the raw material of the tile is more suitable, so that not only can the tile maintain good breaking strength and mohs hardness level, but also the glossiness of the tile can be improved.
It can be seen from examples 1 to 5 that the tile of example 5 has a breaking strength of 1960N, a mohs hardness level of 4 and a gloss of 78 degrees, which indicates that the modified nano alumina of example 5 is added in a more appropriate amount, so that not only the tile can maintain good breaking strength and mohs hardness level, but also the gloss of the tile, i.e., the brightness of the tile, can be improved.
As can be seen from the combination of examples 10 and examples 12 to 13, the breaking strength of the tile in example 12 is 1970N, the mohs hardness level is 5, and the glossiness is 95 degrees, which indicates that the modified nano alumina in the tile raw material is more suitable to be prepared by adopting the preparation example 2, and the glossiness of the tile can be improved, namely the brightness of the tile is improved.
As can be seen from the combination of examples 12 and 14, the tile in example 14 has a breaking strength of 1970N, a mohs hardness level of 5, and a glossiness of 98 degrees, which indicates that the modified nano alumina is more suitable to be pretreated before use, and the dispersibility of the modified nano alumina can be improved, which is more helpful to improve the glossiness of the tile, i.e. to improve the brightness of the tile.
The foregoing embodiments are all preferred examples of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. A high brightness tile, characterized by: the ceramic tile comprises a green body and a glaze material coated on the green body, wherein the glaze material comprises the following raw materials in parts by weight: 20-45 parts of potassium granite, 15-30 parts of wollastonite, 10-20 parts of gold sand, 8-15 parts of zircon sand, 8-20 parts of modified nano-alumina, 2-8 parts of sodium carboxymethylcellulose and 45-60 parts of water; wherein the modified nano alumina is prepared by modifying nano alumina by tetrabutyl titanate;
the modified nano alumina is prepared by the following method: putting nano alumina into toluene, performing ultrasonic dispersion, then adding tetrabutyl titanate, uniformly stirring, filtering, washing solid matters, and drying to obtain modified nano alumina;
the weight ratio of the nano aluminum oxide to the tetrabutyl titanate is 1: (0.4-0.6);
the modified nano alumina is pretreated by the following method before use: adding a silane coupling agent into the ethanol solution, regulating the pH value, stirring uniformly, then adding modified nano alumina, heating to 40-50 ℃, reacting for 3-5h, filtering, washing solid matters, and drying to obtain pretreated modified nano alumina;
the nano alumina is alpha-nano alumina.
2. A high intensity tile as claimed in claim 1 wherein: the glaze comprises the following raw materials in parts by weight: 30-40 parts of potassium granite, 18-25 parts of wollastonite, 12-18 parts of gold sand, 10-12 parts of zircon sand, 10-16 parts of modified nano-alumina, 4-6 parts of sodium carboxymethylcellulose and 50-56 parts of water.
3. A high intensity tile as claimed in claim 1 wherein: the blank comprises the following raw materials in parts by weight: 20-40 parts of kaolin, 10-20 parts of quartz stone, 10-30 parts of talcum powder, 8-15 parts of orthoclate and 5-12 parts of fly ash
Parts by weight.
4. A process for producing a high-brightness tile according to any one of claims 1 to 3, comprising the steps of:
s1: uniformly mixing kaolin, quartz stone, talcum powder, orthofeldspar and fly ash, and grinding to obtain a blank;
s2: uniformly mixing potassium granite, wollastonite, gold sand, zircon sand, modified nano alumina and sodium hydroxymethyl cellulose, grinding, adding water, and uniformly stirring to obtain glaze;
s3: pressing the blank into a green body, and drying to obtain a green body;
s4: uniformly coating the glaze on the green body, drying to obtain a preformed ceramic tile, firing the preformed ceramic tile, and cooling to obtain the ceramic tile with high brightness.
5. The process for producing a high-brightness tile according to claim 4, wherein: the firing temperature in the step S4 is 1150-1200 ℃ and the firing time is 60-70min.
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