A ceramic glaze and a method of making a ceramic article using the same

Abstract

The application discloses a kind of ceramic glaze and the method for preparing ceramic product with it, belong to the technical field of ceramics.Ceramic glaze includes the following components: kaolin, calcined talc, potassium feldspar, limestone, barium carbonate, yttrium oxide, nepheline syenite, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and tetramethyldihydrodisiloxane.The prepared ceramic product can reach GLA level in low concentration acid and alkali resistance, at the same time, can reach more than 5500 revolutions in abrasion resistance test, gloss reaches more than 88°, and the overall glaze surface color is uniform.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ceramics, and particularly relates to a ceramic glaze and a method for preparing a ceramic product by using the same. BACKGROUND

[0002] In daily life, ceramic products have various styles, and are attractive due to their beautiful glaze. However, since the ceramic products are prepared by firing many raw materials, many people pay more attention to the safety performance of the ceramic products, for example, whether the glaze of a daily necessity has cracks and whether the glaze is harmful to human health.

[0003] Chinese Patent Application No. 201710898302.9 discloses a glazing method for preventing cracks of jun porcelain. In order to prevent cracks, the glazing and firing processes of the body are relatively complex, and a lot of labor cost and material cost are generated in actual production of enterprises.

[0004] Therefore, it is necessary to provide a ceramic glaze and a method for preparing a ceramic product by using the same, which have a simple production process, effectively save cost, and effectively improve the strength of a glaze. SUMMARY

[0005] The application aims to overcome the deficiencies of the prior art, and provide a ceramic glaze and a method for preparing a ceramic product by using the same, which have a simple production process, effectively save cost, and effectively improve the strength of a glaze.

[0006] The application adopts the following technical scheme:

[0007] The ceramic glaze comprises the following components in parts by mass: 25-30 parts of kaolin, 8-11 parts of calcined talc, 15-18 parts of potassium feldspar, 9-14 parts of limestone, 6-8 parts of barium carbonate, 11-16 parts of yttrium oxide, 11-15 parts of nepheline syenite, 8-11 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, and 12-17 parts of tetramethyldihydrodisiloxane.

[0008] The method for preparing a ceramic product by using the ceramic glaze comprises the following steps:

[0009] Step 1, preparing ceramic glaze water;

[0010] Step 2, glazing;

[0011] Step 3, firing.

[0012] Further, the process for preparing the ceramic glaze water in step 1 is as follows: according to the mass fraction, the kaolin, calcined talc, potassium feldspar, limestone, barium carbonate, yttrium oxide and nepheline syenite are mixed uniformly, then the solid material is obtained through fine crushing, aging, ball milling and pressure filtration, then water is added in the blender, then the 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and tetramethyl dihydrogen disiloxane are added in turn, then the obtained solid material is slowly added, and finally water is added to adjust the Baumé degree of the ceramic glaze water.

[0013] Further, after the glazing in step two, the glazed ceramic product is obtained, and then the glazed ceramic product is dried.

[0014] Further, the drying temperature is 30-33℃, and the drying time is 30-60min.

[0015] Further, during the firing, the temperature is first raised to 800-950℃ at a heating rate of 0.8-1.1℃ / min, and then kept constant for 1-1.5h, and then the temperature is raised to 1250-1280℃ at a heating rate of 1.0-1.2℃ / min, and then kept constant for 3-4h, and then the ceramic product is obtained after cooling.

[0016] Further, the cooling process is as follows: the temperature is reduced to 600-700℃ at a cooling rate of 5-10℃ / 5min, and then the ceramic product is naturally cooled.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] In order to realize the overall effect of the glaze surface, the applicant adds 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate as a film-forming agent and tetramethyl dihydrogen disiloxane as a crosslinking agent in the glaze water, which not only can improve the uniform distribution of each component of the glaze water, but also can improve the adhesion of the glaze water on the ceramic body, improve the strength of the glaze surface, and prevent the glaze surface from falling off due to external impact.

[0019] At the same time, by using more kaolin as the framework of the glaze surface, combined with limestone, calcined talc and yttrium oxide, the strength performance and gloss are improved. DETAILED DESCRIPTION

[0020] The raw materials used in the present application are all commercially available. Example 1

[0021] The method for preparing the ceramic product comprises the following steps:

[0022] Preparation: ceramic glaze includes the following components by mass fraction: kaolin 25 parts, calcined talc 8 parts, potassium feldspar 15 parts, limestone 9 parts, barium carbonate 6 parts, yttrium oxide 11 parts, nepheline syenite 11 parts, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate 8 parts, tetramethyl dihydrodisiloxane 12 parts.

[0023] Step 1, the process for preparing ceramic glaze water is: according to the mass fraction, the kaolin, calcined talc, potassium feldspar, limestone, barium carbonate, yttrium oxide and nepheline syenite are uniformly mixed, and then are crushed, aged, ball milled and pressure filtered to obtain a solid material;

[0024] Then, water is added in a blender, and then the 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and tetramethyl dihydrodisiloxane are sequentially added, and then the obtained solid material is slowly added;

[0025] Finally, water is added to adjust the Baumé degree of the ceramic glaze water.

[0026] Step 2, glazing: the ceramic glaze water prepared in step 1 is applied to the surface of the ceramic body to obtain a glazed ceramic product, and then the glazed ceramic product is dried, the drying temperature is 30°C, and the drying time is 30 min.

[0027] Step 3, the glazed ceramic product after drying in step 2 is fired, first heated to 800°C at a heating rate of 0.8°C / min, kept at 800°C for 1 h, then heated to 1250°C at a heating rate of 1.0°C / min, kept at 1250°C for 3 h, then cooled at a cooling rate of 5°C / 5 min to 600°C, and then naturally cooled to obtain a ceramic product. Example 2

[0028] A method for preparing a ceramic product, comprising the following steps:

[0029] Preparation: ceramic glaze includes the following components by mass fraction: kaolin 25 parts, calcined talc 8 parts, potassium feldspar 15 parts, limestone 9 parts, barium carbonate 6 parts, yttrium oxide 11 parts, nepheline syenite 11 parts, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate 8 parts, tetramethyl dihydrodisiloxane 12 parts.

[0030] Step 1, the process for preparing ceramic glaze water is: according to the mass fraction, the kaolin, calcined talc, potassium feldspar, limestone, barium carbonate, yttrium oxide and nepheline syenite are uniformly mixed, and then are crushed, aged, ball milled and pressure filtered to obtain a solid material;

[0031] Then, water is added in a blender, and then the 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and tetramethyl dihydrodisiloxane are sequentially added, and then the obtained solid material is slowly added;

[0032] Finally, water is added to adjust the specific gravity of the ceramic glaze.

[0033] Step 2, glazing: the ceramic glaze prepared in step 1 is applied to the surface of the ceramic body to obtain a glazed ceramic product, and then the glazed ceramic product is dried, the drying temperature is 33℃, and the drying time is 60min.

[0034] Step 3, the glazed ceramic product after drying in step 2 is fired, first heated to 950℃ at a heating rate of 1.1℃ / min, kept at 950℃ for 1.5h, then heated to 1280℃ at a heating rate of 1.2℃ / min, kept at 1280℃ for 4h, then cooled to 700℃ at a cooling rate of 10℃ / 5min, and then naturally cooled to obtain the ceramic product. Example 3

[0035] A method for preparing a ceramic product, comprising the following steps:

[0036] Preparation: the ceramic glaze includes the following components in parts by mass: kaolin 28 parts, calcined talc 10 parts, potassium feldspar 17 parts, limestone 11 parts, barium carbonate 7 parts, yttrium oxide 14 parts, nepheline syenite 13 parts, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate 10 parts, and tetramethyldihydrodisiloxane 15 parts.

[0037] Step 1, the process for preparing the ceramic glaze is as follows: the kaolin, calcined talc, potassium feldspar, limestone, barium carbonate, yttrium oxide, and nepheline syenite are mixed uniformly according to the mass fraction, and then subjected to fine crushing, aging, ball milling, and pressure filtration to obtain a solid material;

[0038] Then, water is added in a blender, and then the 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and tetramethyldihydrodisiloxane are sequentially added, and then the obtained solid material is slowly added;

[0039] Finally, water is added to adjust the specific gravity of the ceramic glaze.

[0040] Step 2, glazing: the ceramic glaze prepared in step 1 is applied to the surface of the ceramic body to obtain a glazed ceramic product, and then the glazed ceramic product is dried, the drying temperature is 33℃, and the drying time is 60min.

[0041] Step 3, the glazed ceramic product after drying in step 2 is fired, first heated to 950℃ at a heating rate of 1.1℃ / min, kept at 950℃ for 1.5h, then heated to 1280℃ at a heating rate of 1.2℃ / min, kept at 1280℃ for 4h, then cooled to 700℃ at a cooling rate of 10℃ / 5min, and then naturally cooled to obtain the ceramic product.

[0042] The ceramic products prepared in the above Examples 1-3 are tested, and the resistance to low concentration acid and alkali can reach GLA level, at the same time, in the abrasion resistance test, it can reach more than 5500 revolutions, the glossiness is more than 88°, and the overall glaze color is uniform.

[0043] The above is the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.

Claims

1. A method for preparing ceramic products using ceramic glaze, characterized in that, The ceramic glaze comprises the following components by weight: 25-30 parts kaolin, 8-11 parts calcined talc, 15-18 parts potassium feldspar, 9-14 parts limestone, 6-8 parts barium carbonate, 11-16 parts yttrium oxide, 11-15 parts nepheline orthoclase, 8-11 parts 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, and 12-17 parts tetramethyldihydrodisiloxane. The method for preparing ceramic products using the aforementioned ceramic glaze includes the following steps: Step 1: Prepare ceramic glaze; The process for preparing ceramic glaze is as follows: Kaolin, calcined talc, potassium feldspar, limestone, barium carbonate, yttrium oxide, and nepheline orthoclase are mixed evenly according to the specified mass proportions. After fine crushing, aging, ball milling, and pressure filtration, a solid material is obtained. Then, water is added to a mixer, followed by the 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and tetramethyldihydrodisiloxane in sequence. The obtained solid material is then slowly added, and finally, water is added to adjust the Baume degree of the ceramic glaze. Step 2: Apply glaze; After glazing, glazed ceramic products are obtained, and then the glazed ceramic products are dried at a temperature of 30~33℃ for 30~60 minutes. Step 3: Firing; During the firing process, the temperature is first increased to 800-950℃ at a heating rate of 0.8-1.1℃ / min and held at that temperature for 1-1.5 hours. Then, the temperature is increased to 1250-1280℃ at a heating rate of 1.0-1.2℃ / min and held at that temperature for 3-4 hours before cooling. The cooling process involves decreasing the temperature to 600-700℃ at a cooling rate of 5-10℃ / 5 minutes, followed by natural cooling to obtain the ceramic product.