阅读说明：本技术 一种具有细波浪面的岩板及其制备方法 (Rock plate with fine wavy surface and preparation method thereof ) 是由 黄大泱 石明文 卢佩玉 王礼 熊红炎 于 2021-11-15 设计创作，主要内容包括：本发明公开了一种具有细波浪面的岩板及其制备方法,属于岩板技术领域,所述的具有细波浪面的岩板由以下原料制备而成：锂长石、熔块、硅酸锆、改性氧化铝、烧滑石、碳酸钡、氧化钐、印油；本发明所述的岩板釉面具有细波浪纹理,且具有良好的抗折强度,在本发明以锂辉石、熔块为主料的体系下,搭配改性氧化铝以及印油,并通过在烧结过程中控制风道口的位置以及出风口的风向、风速,能够得到釉面具有细波浪纹理的岩板。通过对氧化铝进行改性,改善了浆料的流变性能、降低粘度,使得所述的釉料能够通过控制风道口的位置以及出风口的风向、风速,在釉面形成细波浪纹理,且改性后的氧化铝,能够显著提高抗折强度。(The invention discloses a rock plate with a fine wave surface and a preparation method thereof, belonging to the technical field of rock plates, wherein the rock plate with the fine wave surface is prepared from the following raw materials: the ink comprises the following components of akermanite, frit, zirconium silicate, modified alumina, calcined talc, barium carbonate, samarium oxide and stamp-pad ink; the rock plate glaze surface has fine wave textures and good breaking strength, and the rock plate glaze surface with the fine wave textures can be obtained by matching modified alumina and stamp-pad ink under the system taking spodumene and frit as main materials and controlling the position of an air duct opening and the wind direction and the wind speed of an air outlet in the sintering process. Through modifying alumina, the rheological property of the slurry is improved, the viscosity is reduced, the glaze can form fine wave textures on the glaze through controlling the position of an air duct opening and the wind direction and the wind speed of an air outlet, and the modified alumina can obviously improve the breaking strength.)

1. The rock plate with the fine wavy surface is characterized by being prepared from the following raw materials in parts by weight: 12-16 parts of lithium feldspar, 10-15 parts of frit, 7-10 parts of zirconium silicate, 4-7 parts of modified alumina, 3-4 parts of calcined talc, 1-3 parts of barium carbonate, 0.5-1 part of samarium oxide and 40-55 parts of stamp-pad ink.

2. The rock plate with the fine wavy surface according to claim 1, wherein the rock plate with the fine wavy surface is prepared from the following raw materials in parts by weight: 12-15 parts of lithium feldspar, 12-15 parts of frit, 8-10 parts of zirconium silicate, 4-6 parts of modified alumina, 3.5-4 parts of calcined talc, 1-2.5 parts of barium carbonate, 0.5-0.8 part of samarium oxide and 40-52 parts of stamp-pad ink.

3. The rock plate with the fine wavy surface according to claim 1, wherein the rock plate with the fine wavy surface is prepared from the following raw materials in parts by weight: 15 parts of lithium feldspar, 12.4 parts of frit, 8 parts of zirconium silicate, 6 parts of modified alumina, 3.8 parts of calcined talc, 2 parts of barium carbonate, 0.8 part of samarium oxide and 52 parts of stamp-pad ink.

4. The rock panel having a fine wavy surface according to claim 1, wherein the stamp ink comprises, by weight: 0.2-0.6 part of sodium fluosilicate, 0.5-1 part of methyl acetate, 1-2 parts of sodium humate, 1-3 parts of triethylene tetramine, 1-4 parts of tetramethyl ammonium hydroxide, 6-12 parts of butyl carbitol, 18-30 parts of glycerol and 50-70 parts of deionized water.

5. The rock panel having a fine wavy surface according to claim 1, wherein the stamp ink comprises, by weight: 0.5 part of sodium fluosilicate, 0.8 part of methyl acetate, 1.5 parts of sodium humate, 2 parts of triethylenetetramine, 3 parts of tetramethylammonium hydroxide, 10 parts of butyl carbitol, 22 parts of glycerol and 60.2 parts of deionized water.

6. The rock plate with the fine wavy surface according to claim 1, wherein the frit is prepared from the following raw materials in parts by weight: 20-30 parts of cordierite, 18-25 parts of dolomite, 10-20 parts of calcite, 8-12 parts of borax, 8-12 parts of boromagnesite, 6-10 parts of zirconium silicate, 4-8 parts of calcium carbonate, 1-4 parts of barium oxide and 0.5-2 parts of boric acid.

7. The rock plate with fine wavy surface according to claim 1, characterized in that the modified alumina is prepared by the following method:

s1, adding 10-16 parts by weight of isopropyl tri (dioctyl pyrophosphato acyloxy) titanate and 50-100 parts by weight of toluene into a reaction kettle, uniformly dispersing, adding 15-20 parts by weight of diisooctyl phosphate, uniformly stirring, adding 4-8 parts by weight of cerium oxide, and uniformly stirring to obtain a rare earth composite modifier;

s2, adding 10 parts by weight of alumina into 40-80 parts by weight of deionized water, uniformly dispersing, preparing into slurry, adding 0.5-1 part by weight of rare earth composite modifier and 0.4-1 part by weight of ammonium phosphate, stirring for 20-50 min at the rotating speed of 100-400 rpm in a water bath at the temperature of 55-70 ℃, adding 0.1-0.5 part by weight of glycolic acid, carrying out ultrasonic treatment, filtering, and drying to obtain the modified alumina.

8. The rock plate with the fine wavy surface according to claim 7, wherein the ultrasonic treatment power is 200 to 800W and the ultrasonic treatment time is 15 to 40 min.

9. A method for producing a rock laminate having a fine wavy surface, comprising the steps of:

(1) adding the lithium feldspar, the frit, the zirconium silicate, the modified alumina, the calcined talc, the barium carbonate, the samarium oxide and the stamp-pad ink into a ball mill, and uniformly mixing to obtain a glaze material;

(2) applying glaze cloth on the green body, sending the green body into a kiln, and sintering the green body at 1200-1300 ℃ for 50-80 min, wherein air duct openings are arranged on two sides and the top of the kiln, the included angle between the air outlet direction of the air duct openings on the two sides of the kiln and the horizontal plane is 42-46 ℃, the included angle between the air duct openings on the top of the kiln and the horizontal plane is 88-92 ℃, and the wind power of the air duct openings on the two sides of the kiln is greater than that of the air duct openings on the top of the kiln.

10. The method for preparing a rock plate with a fine wavy surface according to claim 9, wherein the wind power at the wind channel openings on both sides of the kiln is 2.5 to 4 m/s; and the wind power of the air duct opening positioned at the top of the kiln is 2-3.2 m/s.

Technical Field

The invention relates to the technical field of rock plates, in particular to a rock plate with a fine wave surface and a preparation method thereof.

Background

At present, most glaze effect decorations of rock plates on the market are formed through molds, the glaze effect is often not natural enough due to the use of the molds, and the decoration effect is single.

CN108101371A discloses a method for preparing a non-mold water ripple type glazed ceramic tile, which specifically discloses the steps of preparing a blank: ball-milling, pressing and firing the blank raw materials according to the formula amount to form a blank; the steps of preparing the ripple glaze material are as follows: pouring the corrugated glaze with the formula amount into a ball mill for ball milling for 4-6 hours, and filtering and deironing by adopting a 120-150-mesh screen to obtain the corrugated glaze; step of applying ripple glaze: filling the corrugated glaze material into a glaze pouring device, and covering the corrugated glaze material on the surface of the obtained blank body by using the glaze pouring device to obtain a glaze blank; and (3) firing: and then the glaze blank is sent to a kiln to be fired, and the position of an air duct opening and the wind power are controlled in the kiln, so that the water ripple type glazed ceramic tile is obtained. The water ripple type glazed ceramic tile is obtained by controlling the position of an air duct opening and wind power in a kiln, the amount of calcite in a formula system is up to 35-40%, and further according to the description, if the amount of calcite is too small, ripple type textures cannot be achieved, and the mechanical property of the prepared ceramic is required to be improved.

Disclosure of Invention

The invention provides a rock plate with a fine wave surface and a preparation method thereof.

The invention adopts the following technical scheme for solving the technical problems:

a rock plate with a fine wavy surface is prepared from the following raw materials in parts by weight: 12-16 parts of lithium feldspar, 10-15 parts of frit, 7-10 parts of zirconium silicate, 4-7 parts of modified alumina, 3-4 parts of calcined talc, 1-3 parts of barium carbonate, 0.5-1 part of samarium oxide and 40-55 parts of stamp-pad ink.

The inventor of the invention finds in a large amount of research that by adopting the formula, modified alumina and stamp-pad ink are matched under a system taking spodumene and frit as main materials, and by controlling the position of an air duct opening and the wind direction and the wind speed of an air outlet in the sintering process, the rock plate with a glaze surface having fine wave textures can be obtained. As a preferable scheme, the rock plate with the fine wavy surface is prepared from the following raw materials in parts by weight: 12-15 parts of lithium feldspar, 12-15 parts of frit, 8-10 parts of zirconium silicate, 4-6 parts of modified alumina, 3.5-4 parts of calcined talc, 1-2.5 parts of barium carbonate, 0.5-0.8 part of samarium oxide and 40-52 parts of stamp-pad ink.

As a preferable scheme, the rock plate with the fine wavy surface is prepared from the following raw materials in parts by weight: 15 parts of lithium feldspar, 12.4 parts of frit, 8 parts of zirconium silicate, 6 parts of modified alumina, 3.8 parts of calcined talc, 2 parts of barium carbonate, 0.8 part of samarium oxide and 52 parts of stamp-pad ink.

As a preferred embodiment, the stamp-pad ink comprises, by weight: 0.2-0.6 part of sodium fluosilicate, 0.5-1 part of methyl acetate, 1-2 parts of sodium humate, 1-3 parts of triethylene tetramine, 1-4 parts of tetramethyl ammonium hydroxide, 6-12 parts of butyl carbitol, 18-30 parts of glycerol and 50-70 parts of deionized water.

The inventor finds that by adopting the stamp-pad ink, on one hand, the fluidity of the glaze can be controlled, so that the glaze can form fine wave textures on the glaze by controlling the position of an air duct opening and the wind direction and the wind speed of an air outlet, if the formula does not contain the stamp-pad ink, the fluidity and the viscosity are overlarge, the textures of the glaze cannot be adjusted by controlling the position of the air duct opening and the wind direction and the wind speed of the air outlet, and on the other hand, because the stamp-pad ink can adjust the wettability and the fluidity of a formula system, the sintering process can be smoothly carried out, the local excessive aggregation of materials cannot occur, so that the stress is different in size, the glaze is cracked, and the breaking strength can be improved to a certain degree.

As a preferred embodiment, the stamp-pad ink comprises, by weight: 0.5 part of sodium fluosilicate, 0.8 part of methyl acetate, 1.5 parts of sodium humate, 2 parts of triethylenetetramine, 3 parts of tetramethylammonium hydroxide, 10 parts of butyl carbitol, 22 parts of glycerol and 60.2 parts of deionized water.

As a preferable scheme, the frit is prepared from the following raw materials in parts by weight: 20-30 parts of cordierite, 18-25 parts of dolomite, 10-20 parts of calcite, 8-12 parts of borax, 8-12 parts of boromagnesite, 6-10 parts of zirconium silicate, 4-8 parts of calcium carbonate, 1-4 parts of barium oxide and 0.5-2 parts of boric acid.

As a preferable scheme, the preparation method of the modified alumina comprises the following steps:

s1, adding 10-16 parts by weight of isopropyl tri (dioctyl pyrophosphato acyloxy) titanate and 50-100 parts by weight of toluene into a reaction kettle, uniformly dispersing, adding 15-20 parts by weight of diisooctyl phosphate, uniformly stirring, adding 4-8 parts by weight of cerium oxide, and uniformly stirring to obtain a rare earth composite modifier;

s2, adding 10 parts by weight of alumina into 40-80 parts by weight of deionized water, uniformly dispersing, preparing into slurry, adding 0.5-1 part by weight of rare earth composite modifier and 0.4-1 part by weight of ammonium phosphate, stirring for 20-50 min at the rotating speed of 100-400 rpm in a water bath at the temperature of 55-70 ℃, adding 0.1-0.5 part by weight of glycolic acid, carrying out ultrasonic treatment, filtering, and drying to obtain the modified alumina.

According to the invention, the alumina is modified, so that the rheological property of the slurry is improved, the viscosity is reduced, the glaze can form fine wave textures on the glaze surface by controlling the position of an air duct opening and the wind direction and the wind speed of an air outlet, and the modified alumina can obviously improve the breaking strength. Compared with the modified alumina prepared by other methods, the modified alumina prepared by the method can remarkably improve the flexural strength, so that the glaze surface has fine wave textures.

As a preferable scheme, the ultrasonic treatment power is 200-800W, and the ultrasonic treatment time is 15-40 min.

The invention also provides a preparation method of the rock plate with the fine wave surface, which comprises the following steps:

(1) adding the lithium feldspar, the frit, the zirconium silicate, the modified alumina, the calcined talc, the barium carbonate, the samarium oxide and the stamp-pad ink into a ball mill, and uniformly mixing to obtain a glaze material;

(2) applying glaze cloth on the green body, sending the green body into a kiln, and sintering the green body at 1200-1300 ℃ for 50-80 min, wherein air duct openings are arranged on two sides and the top of the kiln, the included angle between the air outlet direction of the air duct openings on the two sides of the kiln and the horizontal plane is 42-46 ℃, the included angle between the air duct openings on the top of the kiln and the horizontal plane is 88-92 ℃, and the wind power of the air duct openings on the two sides of the kiln is greater than that of the air duct openings on the top of the kiln.

According to the invention, the position of the air duct opening, the wind direction and the wind speed of the air outlet are controlled in the sintering process, so that the rock plate with the glaze surface having fine wave textures can be obtained.

As a preferred scheme, the wind power of the air duct openings positioned at the two sides of the kiln is 2.5-4 m/s; and the wind power of the air duct opening positioned at the top of the kiln is 2-3.2 m/s.

The invention has the beneficial effects that: the rock plate glaze surface has fine wave textures and good breaking strength, and the rock plate glaze surface with the fine wave textures can be obtained by matching modified alumina and stamp-pad ink under the system taking spodumene and frit as main materials and controlling the position of an air duct opening and the wind direction and the wind speed of an air outlet in the sintering process. Through modifying alumina, the rheological property of the slurry is improved, the viscosity is reduced, the glaze can form fine wave textures on the glaze through controlling the position of an air duct opening and the wind direction and the wind speed of an air outlet, and the modified alumina can obviously improve the breaking strength.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the parts are all parts by weight unless otherwise specified.

Example 1

A rock plate with a fine wavy surface is prepared from the following raw materials in parts by weight: 15 parts of lithium feldspar, 12.4 parts of frit, 8 parts of zirconium silicate, 6 parts of modified alumina, 3.8 parts of calcined talc, 2 parts of barium carbonate, 0.8 part of samarium oxide and 52 parts of stamp-pad ink.

By adopting the formula, the modified alumina and the stamp-pad ink are matched under a system taking spodumene and frit as main materials, and the position of an air duct opening, the wind direction and the wind speed of an air outlet are controlled in the sintering process, so that the rock plate with the glaze surface having fine wave textures can be obtained.

The stamp-pad ink comprises the following components in percentage by weight: 0.5 part of sodium fluosilicate, 0.8 part of methyl acetate, 1.5 parts of sodium humate, 2 parts of triethylenetetramine, 3 parts of tetramethylammonium hydroxide, 10 parts of butyl carbitol, 22 parts of glycerol and 60.2 parts of deionized water.

Adopt the aforesaid stamp-pad ink, on the one hand can control the mobility of frit, make the frit can form the fine wave texture at the glaze through the position of control wind channel mouth and the wind direction of air outlet, wind speed, if the formula do not contain stamp-pad ink, mobility and viscosity are too big, can not adjust the texture of glaze through the position of control wind channel mouth and the wind direction of air outlet, wind speed, and in addition on the one hand because stamp-pad ink can adjust the wettability, the mobility of formula system, make the sintering process go on smoothly, the local excessive gathering of material can not appear to cause the stress variation in size, the crackle appears in the glaze, thereby can improve rupture strength to a certain extent.

The preparation method of the frit comprises the following steps: weighing the following components in parts by weight: 28 parts of cordierite, 20 parts of dolomite, 15 parts of calcite, 10 parts of borax, 10 parts of boromagnesite, 8 parts of zirconium silicate, 6 parts of calcium carbonate, 2 parts of barium oxide and 1 part of boric acid, the raw materials are uniformly mixed, melted at the temperature of 1480 ℃ for 2 hours, quenched in water, dried and crushed to 200 meshes to obtain the frit.

The preparation method of the modified alumina comprises the following steps:

s1, adding 15 parts by weight of isopropyl tri (dioctyl pyrophosphato acyloxy) titanate and 61 parts by weight of toluene into a reaction kettle, stirring at the rotating speed of 200rpm for 20min, adding 18 parts by weight of diisooctyl phosphate, stirring at the rotating speed of 600rpm for 50min, adding 6 parts by weight of cerium oxide, and stirring at the rotating speed of 400rpm for 60min to obtain the rare earth composite modifier;

s2, adding 10 parts by weight of alumina into 60 parts by weight of deionized water, uniformly dispersing to prepare slurry, adding 0.8 part by weight of rare earth composite modifier and 0.5 part by weight of ammonium phosphate, stirring for 30min at the rotating speed of 300rpm in a water bath at 65 ℃, adding 0.3 part by weight of glycolic acid, carrying out ultrasonic treatment for 30min at 500W, filtering, and drying to obtain the modified alumina.

Through modifying alumina, the rheological property of the slurry is improved, the viscosity is reduced, the glaze can form fine wave textures on the glaze through controlling the position of an air duct opening and the wind direction and the wind speed of an air outlet, and the modified alumina can obviously improve the breaking strength. Compared with the modified alumina prepared by other methods, the modified alumina prepared by the method can remarkably improve the flexural strength, so that the glaze surface has fine wave textures.

The preparation method of the rock plate with the fine wave surface comprises the following steps:

(1) adding the lithium feldspar, the frit, the zirconium silicate, the modified alumina, the calcined talc, the barium carbonate, the samarium oxide and the stamp-pad ink into a ball mill, and uniformly mixing to obtain a glaze material;

(2) uniformly mixing 26.3 parts of potassium feldspar, 24 parts of wollastonite, 12 parts of quartz, 10 parts of alumina, 9 parts of kaolin, 7 parts of hydroxyapatite, 5 parts of bentonite, 4 parts of talcum powder, 1.2 parts of sodium carboxymethylcellulose, 1 part of zinc silicate and 0.5 part of sodium tripolyphosphate, sintering to obtain a blank body, and spreading a glaze material on the blank body, wherein the glazing amount is 450g/m²The raw materials are sent into a kiln to be sintered for 60min at 1280 ℃, air duct openings are arranged on the two sides and the top of the kiln, the included angle between the air outlet direction of the air duct openings on the two sides of the kiln and the horizontal plane is 45 ℃, the included angle between the air duct opening on the top of the kiln and the horizontal plane is 90 ℃, and the wind power of the air duct openings on the two sides of the kiln is 3.5 m/s; and the wind power of a wind channel opening positioned at the top of the kiln is 3 m/s.

By controlling the position of the air duct opening and the wind direction and the wind speed of the air outlet in the sintering process, the rock plate with the glaze surface having fine wave textures can be obtained.

Example 2

A rock plate with a fine wavy surface is prepared from the following raw materials in parts by weight: 14 parts of lithium feldspar, 10.5 parts of frit, 10 parts of zirconium silicate, 4 parts of modified alumina, 3 parts of calcined talc, 3 parts of barium carbonate, 0.5 part of samarium oxide and 55 parts of stamp-pad ink.

The stamp-pad ink comprises the following components in percentage by weight: 0.2 part of sodium fluosilicate, 1 part of methyl acetate, 1 part of sodium humate, 3 parts of triethylene tetramine, 1 part of tetramethyl ammonium hydroxide, 12 parts of butyl carbitol, 18 parts of glycerol and 63.8 parts of deionized water.

The preparation method of the frit comprises the following steps: weighing the following components in parts by weight: 28 parts of cordierite, 20 parts of dolomite, 15 parts of calcite, 10 parts of borax, 10 parts of boromagnesite, 8 parts of zirconium silicate, 6 parts of calcium carbonate, 2 parts of barium oxide and 1 part of boric acid, the raw materials are uniformly mixed, melted at the temperature of 1480 ℃ for 2 hours, quenched in water, dried and crushed to 200 meshes to obtain the frit.

The preparation method of the modified alumina comprises the following steps:

s1, adding 12 parts by weight of isopropyl tri (dioctyl pyrophosphato acyloxy) titanate and 68 parts by weight of toluene into a reaction kettle, stirring at the rotating speed of 200rpm for 20min, adding 15 parts by weight of diisooctyl phosphate, stirring at the rotating speed of 600rpm for 50min, adding 5 parts by weight of cerium oxide, and stirring at the rotating speed of 400rpm for 60min to obtain a rare earth composite modifier;

s2, adding 10 parts by weight of alumina into 50 parts by weight of deionized water, uniformly dispersing to prepare slurry, adding 0.6 part by weight of rare earth composite modifier and 0.6 part by weight of ammonium phosphate, stirring for 30min at the rotating speed of 300rpm in a water bath at 65 ℃, adding 0.4 part by weight of glycolic acid, carrying out ultrasonic treatment for 30min at 500W, filtering, and drying to obtain the modified alumina.

The preparation method of the rock plate with the fine wave surface comprises the following steps:

(1) adding the lithium feldspar, the frit, the zirconium silicate, the modified alumina, the calcined talc, the barium carbonate, the samarium oxide and the stamp-pad ink into a ball mill, and uniformly mixing to obtain a glaze material;

(2) uniformly mixing 26.3 parts of potassium feldspar, 24 parts of wollastonite, 12 parts of quartz, 10 parts of alumina, 9 parts of kaolin, 7 parts of hydroxyapatite, 5 parts of bentonite, 4 parts of talcum powder, 1.2 parts of sodium carboxymethylcellulose, 1 part of zinc silicate and 0.5 part of sodium tripolyphosphate, sintering to obtain a blank, and applying a glaze cloth to the blankThe glazing amount is 450g/m on the green body²The raw materials are sent into a kiln to be sintered for 60min at 1280 ℃, air duct openings are arranged on the two sides and the top of the kiln, the included angle between the air outlet direction of the air duct openings on the two sides of the kiln and the horizontal plane is 45 ℃, the included angle between the air duct opening on the top of the kiln and the horizontal plane is 90 ℃, and the wind power of the air duct openings on the two sides of the kiln is 3.5 m/s; and the wind power of a wind channel opening positioned at the top of the kiln is 3 m/s.

Example 3

A rock plate with a fine wavy surface is prepared from the following raw materials in parts by weight: 16 parts of lithium feldspar, 15 parts of frit, 10 parts of zirconium silicate, 5 parts of modified alumina, 4 parts of calcined talc, 1 part of barium carbonate, 0.5 part of samarium oxide and 48.5 parts of stamp-pad ink.

The stamp-pad ink comprises the following components in percentage by weight: 0.6 part of sodium fluosilicate, 0.5 part of methyl acetate, 2 parts of sodium humate, 1 part of triethylene tetramine, 4 parts of tetramethyl ammonium hydroxide, 6 parts of butyl carbitol, 30 parts of glycerol and 55.9 parts of deionized water.

The preparation method of the frit comprises the following steps: weighing the following components in parts by weight: 28 parts of cordierite, 20 parts of dolomite, 15 parts of calcite, 10 parts of borax, 10 parts of boromagnesite, 8 parts of zirconium silicate, 6 parts of calcium carbonate, 2 parts of barium oxide and 1 part of boric acid, the raw materials are uniformly mixed, melted at the temperature of 1480 ℃ for 2 hours, quenched in water, dried and crushed to 200 meshes to obtain the frit.

The preparation method of the modified alumina comprises the following steps:

s1, adding 12 parts by weight of isopropyl tri (dioctyl pyrophosphato acyloxy) titanate and 68 parts by weight of toluene into a reaction kettle, stirring at the rotating speed of 200rpm for 20min, adding 15 parts by weight of diisooctyl phosphate, stirring at the rotating speed of 600rpm for 50min, adding 5 parts by weight of cerium oxide, and stirring at the rotating speed of 400rpm for 60min to obtain a rare earth composite modifier;

s2, adding 10 parts by weight of alumina into 50 parts by weight of deionized water, uniformly dispersing to prepare slurry, adding 0.4 part by weight of rare earth composite modifier and 0.5 part by weight of ammonium phosphate, stirring for 30min at the rotating speed of 300rpm in a water bath at 65 ℃, adding 0.2 part by weight of glycolic acid, carrying out ultrasonic treatment for 30min at 500W, filtering, and drying to obtain the modified alumina.

The preparation method of the rock plate with the fine wave surface comprises the following steps:

(1) adding the lithium feldspar, the frit, the zirconium silicate, the modified alumina, the calcined talc, the barium carbonate, the samarium oxide and the stamp-pad ink into a ball mill, and uniformly mixing to obtain a glaze material;

(2) uniformly mixing 26.3 parts of potassium feldspar, 24 parts of wollastonite, 12 parts of quartz, 10 parts of alumina, 9 parts of kaolin, 7 parts of hydroxyapatite, 5 parts of bentonite, 4 parts of talcum powder, 1.2 parts of sodium carboxymethylcellulose, 1 part of zinc silicate and 0.5 part of sodium tripolyphosphate, sintering to obtain a blank body, and spreading a glaze material on the blank body, wherein the glazing amount is 450g/m²The raw materials are sent into a kiln to be sintered for 60min at 1280 ℃, air duct openings are arranged on the two sides and the top of the kiln, the included angle between the air outlet direction of the air duct openings on the two sides of the kiln and the horizontal plane is 45 ℃, the included angle between the air duct opening on the top of the kiln and the horizontal plane is 90 ℃, and the wind power of the air duct openings on the two sides of the kiln is 3.5 m/s; and the wind power of a wind channel opening positioned at the top of the kiln is 3 m/s.

Comparative example 1

Comparative example 1 differs from example 1 in that comparative example 1 does not contain the modified alumina and is otherwise identical.

Comparative example 2

Comparative example 2 is different from example 1 in that comparative example 2 uses alumina instead of modified alumina, and the others are the same.

Comparative example 3

Comparative example 3 is different from example 1 in that comparative example 3 is different from example 1 in the preparation method of the modified alumina, and the other steps are the same.

In this comparative example, isopropyl tris (dioctyl pyrophosphato acyloxy) titanate was used in place of the rare earth composite modifier.

The preparation method of the modified alumina comprises the following steps:

s1, adding 10 parts by weight of alumina into 60 parts by weight of deionized water, uniformly dispersing to prepare slurry, adding 0.8 part by weight of isopropyl tri (dioctyl pyrophosphato acyloxy) titanate and 0.5 part by weight of ammonium phosphate, stirring for 30min at the rotating speed of 300rpm in a water bath at 65 ℃, adding 0.3 part by weight of glycolic acid, performing ultrasonic treatment for 30min at 500W, filtering, and drying to obtain the modified alumina.

Comparative example 4

Comparative example 4 is different from example 1 in that the modified alumina described in comparative example 4 is prepared by a different method, and the others are the same.

In this comparative example, the rare earth composite modifier was replaced with a silane coupling agent KH 550.

The preparation method of the modified alumina comprises the following steps:

s1, adding 10 parts by weight of alumina into 60 parts by weight of deionized water, uniformly dispersing to prepare slurry, adding 0.8 part by weight of silane coupling agent KH550 and 0.5 part by weight of ammonium phosphate, stirring for 30min at the rotating speed of 300rpm in a water bath at 65 ℃, adding 0.3 part by weight of glycolic acid, performing ultrasonic treatment for 30min at 500W, filtering, and drying to obtain the modified alumina.

Comparative example 5

Comparative example 5 differs from example 1 in that comparative example 5 does not contain the stamp-pad ink, and the other things are the same.

Comparative example 6

Comparative example 6 is different from example 1 in that the rock laminate having a fine wavy surface was prepared by the same method as in example 1, except that the same procedure was carried out.

In this comparative example, sintering was performed by a common sintering method.

The preparation method of the rock plate with the fine wave surface comprises the following steps:

(1) adding the lithium feldspar, the frit, the zirconium silicate, the modified alumina, the calcined talc, the barium carbonate, the samarium oxide and the stamp-pad ink into a ball mill, and uniformly mixing to obtain a glaze material;

(2) uniformly mixing 26.3 parts of potassium feldspar, 24 parts of wollastonite, 12 parts of quartz, 10 parts of alumina, 9 parts of kaolin, 7 parts of hydroxyapatite, 5 parts of bentonite, 4 parts of talcum powder, 1.2 parts of sodium carboxymethylcellulose, 1 part of zinc silicate and 0.5 part of sodium tripolyphosphate, sintering to obtain a blank body, and spreading a glaze material on the blank body, wherein the glazing amount is 450g/m²Is fed into a kiln at 1Sintering at 280 deg.C for 60 min.

To further demonstrate the effect of the present invention, the following test methods were provided:

1. the flexural strength of the rock boards described in examples 1 to 3 and comparative examples 1 to 6 was tested by using a flexural tester, and the glaze was evaluated, and the test results are shown in table 1.

TABLE 1 test results

As can be seen from Table 1, the glaze surface of the rock plate has fine wave texture and good breaking strength.

Compared with the examples 1-3, the rock plate with good flexural strength is obtained by optimizing the formula of the rock plate and the preparation method of the modified alumina.

Compared with the comparative examples 1 and 1-4, the modified alumina provided by the invention has the advantages that the flexural strength can be obviously improved, the glaze surface has good fine wave textures, the flexural strength of the rock plate can be obviously influenced by different preparation methods of the alumina, and the glaze surface has the fine wave textures, namely the flexural strength of the modified alumina prepared by the preparation method of the modified alumina can be more obviously improved compared with the modified alumina prepared by other methods, and the glaze surface has the good fine wave textures.

Comparing example 1 with comparative example 5, it can be seen that the adoption of the stamp-pad ink of the present invention improves the breaking strength to a certain extent, so that the glaze has a fine wave texture.

Comparing example 1 with comparative example 6, it can be seen that the glaze can have a fine wave texture only by adopting the sintering method of the present invention.

In light of the foregoing description of preferred embodiments according to the invention, it is clear that many changes and modifications can be made by the person skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.