CN108840568B - Light heat-insulating ceramic decorative plate and preparation method thereof - Google Patents
Light heat-insulating ceramic decorative plate and preparation method thereof Download PDFInfo
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Abstract
The invention provides a light heat-insulating ceramic decorative board, wherein a metal glaze layer is mainly prepared by firing the following raw materials in parts by mass: 0.3-1.0 part of sodium carboxymethylcellulose, 10-40 parts of water glass, 1-8 parts of aluminum silver powder, 20-45 parts of perlite tail powder, 40-80 parts of water and 15-45 parts of low-temperature clinker powder. The invention provides a preparation method of the light heat-insulation ceramic decorative plate. The raw materials of the metal glaze layer in the light heat-insulating ceramic plate provided by the invention contain aluminum silver powder, and at a certain temperature, the aluminum silver powder is not completely oxidized and reflects a certain metal luster and texture in the transparent bright glaze, so that the metal glaze layer is formed on the surface of the light heat-insulating ceramic decorative plate. The preparation method of the light heat-insulating ceramic decorative plate provided by the invention is simple and safe, and is suitable for industrial application.
Description
Technical Field
The invention belongs to the field of building materials, and particularly relates to a light heat-insulating ceramic decorative plate and a preparation method thereof.
Background
The light heat-insulating ceramic decorative plate is a novel heat-insulating decorative integrated ceramic plate, integrates the functions of heat insulation, sound insulation, decoration, fire prevention and the like, and is an rare novel building material for green buildings. But the development of the corresponding glaze is relatively lagged, and the application of the light heat-insulating ceramic decorative plate is greatly influenced.
Most of the existing glaze materials are frit glaze materials, and Chinese patent CN105731798A provides a ceramic glaze material and a preparation method thereof, wherein the ceramic glaze material comprises the following components in parts by weight: SiO 2286 to 95 parts of Al2O35 to 10 parts of C601 to 2 parts of TiO24 to 8 parts of CaCO322 to 30 parts of (B)2O33 to 11 parts of hydrogen (H)3PO412 to 15 parts by weight of H3BO34 to 10 parts of Na2SiO310 to 16 parts of ZnO50 to 8 parts of CuO40 to 8 parts by weight of MnO60 to 12 parts of BaO30 to 8 parts of Fe2O3 4-9 parts of MgO and 4-8 parts of MgO, and the glaze formed by twice firing is smooth and high in glossiness, but the components and the preparation process are complex, and the light heat-insulating ceramic decorative plate is not suitable for light heat-insulating ceramic decorative plates.
Chinese patent CN105669173A discloses a heat-insulating decorative ceramic plate produced by comprehensively utilizing perlite waste and a production method thereof, and the disclosed glaze formula comprises: 50 to 90 percent of expanded perlite micropowder, 50 to 90 percent of low-temperature frit, 0.1 to 5 percent of zinc oxide, 0.1 to 5 percent of fluorite, 0 to 5 percent of apatite, 0.1 to 2.0 percent of sodium tripolyphosphate, 0.5 to 5 percent of kaolin and 0.1 to 0.5 percent of sodium methyl cellulose, and the production method is characterized by comprising the following steps: the roller kiln is used for naked body firing at the low temperature of 900-1050 ℃. Although the glaze fired by the glaze formula is suitable for the light heat-insulating ceramic decorative plate, the glaze does not have metallic luster and texture, so that the light heat-insulating ceramic decorative plate cannot meet the requirements of people.
Disclosure of Invention
In view of the above, it is necessary to provide a lightweight thermal insulation ceramic decorative board and a method for manufacturing the same to solve the above problems.
Therefore, the invention provides a light heat-insulating ceramic decorative plate which comprises a light heat-insulating ceramic decorative plate substrate and a metal glaze layer, wherein the metal glaze layer is mainly prepared by firing the following raw materials in parts by mass: 0.3-1.0 part of sodium carboxymethylcellulose, 10-40 parts of water glass, 1-8 parts of aluminum silver powder, 20-45 parts of perlite tail powder, 40-80 parts of water and 15-45 parts of low-temperature clinker powder.
Based on the above, the fineness of the perlite tailings is 90-200 meshes, and the perlite tailings comprise the following components in percentage by mass: SiO 22 72％～74%、Al2O3 11％～13%、Fe2O3＜0.50%、Na2O 1.7％～2.5%、K2O 3.5％～4.5%、CaO＜0.5%、MgO＜0.8%、H2O 2.0%～3.4%。
Based on the above, the low-temperature clinker powder comprises the following components in percentage by massComposition of numbers: SiO 22 58％～62%、Al2O35％～7%、B2O3 21％～22%、Li2O 6.0%～7.0%、Na2O 1.7％～2.5%、K2O＜0.2%、CaO＜0.08%。
Wherein the purity of the sodium carboxymethylcellulose is more than 98%, the substitution degree is 0.85-1.0, and the fineness is less than 10% after 60-mesh sieving. The water glass is industrial grade liquid sodium silicate, the purity of the water glass is more than 33%, and the specific gravity of the water glass at 20 ℃ is 1.4125. The aluminum silver powder is superfine aluminum silver powder, the purity of the aluminum silver powder is more than 99%, and the molecular weight of the aluminum silver powder is 26.58.
Based on the above, the main raw materials of the light heat-insulating ceramic decorative board substrate are perlite micro powder and expanded perlite micro powder. For example, the light heat-insulating ceramic decorative board base body can be composed of the following raw materials in percentage by mass: 25-70% of perlite micropowder, 20-40% of expanded perlite micropowder, 0.1-5% of fluorite, 0.1-2% of black silicon carbide, 0.5-15% of bentonite, 0.1-5% of sodium metasilicate nonahydrate, 0.1-0.5% of sodium humate, 0-25% of Guangdong black mud, 0-10% of limestone and 0-1.0% of sodium tripolyphosphate.
The invention also provides a preparation method of the light heat-insulation ceramic decorative plate, which comprises the following steps:
carrying out biscuit firing treatment on the green body of the light heat-preservation ceramic decorative board substrate by biscuit firing once to obtain a biscuit firing green body;
preparing glaze slip, namely mixing and grinding perlite tail powder, low-temperature clinker powder, aluminum silver powder, sodium carboxymethylcellulose and water according to the mass parts to obtain mixed slip with the viscosity of 30-50 s counted by a Tu cup; uniformly mixing the water glass with water to obtain a water glass solution; adding the water glass solution into the mixed slurry while stirring the mixed slurry to prepare glaze slurry;
glazing, namely applying the glaze slip to the biscuit firing blank to prepare a glazed blank;
and firing the glazed blank at 850-900 ℃ for 30-40 min for the second firing to obtain the finished product of the light heat-insulating ceramic decorative board.
Based on the above, the step of preparing the glaze slurry comprises the following steps: in the process of preparing the mixed slurry, the perlite tail powder, the low-temperature clinker powder, the aluminum silver powder, the sodium carboxymethylcellulose and the water are mixed firstly, and then ball milling is carried out at the speed of 1300-1500 rpm for 10-20 min to prepare the mixed slurry.
Based on the above, the step of preparing the glaze slurry comprises the following steps: and uniformly stirring the mixed slurry manually or electrically at a speed of 80-120 revolutions per minute, and adding the water glass into the mixed slurry to obtain the glaze slurry.
Based on the above, the glazing step comprises: and applying the glaze slurry to the bisque-fired blank body in a glaze spraying, glaze printing, glaze swinging, glaze dipping or glaze spraying manner, wherein the glazing amount is 80-300 g per square meter, so as to obtain the glazed blank body.
Based on the above, the step of primary bisque firing comprises: and oxidizing and firing the green body of the light heat-preservation ceramic decorative board substrate at 950-1050 ℃ to obtain the biscuit firing body. The green body of the light heat-preservation ceramic decorative board substrate is prepared by the following existing method: performing ball milling treatment on the raw material of the light heat-preservation ceramic decorative board substrate and water to obtain ceramic slurry; the slurry is sieved, aged and spray-dried to prepare powder, and the powder is aged and then is made into a green body of the light heat-insulating ceramic decorative board matrix by a press-drying forming mode.
The raw materials of the metal glaze layer in the light heat-insulating ceramic decorative plate provided by the invention comprise perlite tail powder, low-temperature frit powder, sodium carboxymethylcellulose, water glass and the like which are used as lead-free base raw materials, the base raw materials form low-temperature transparent raw glaze, the aluminum silver powder is uniformly dispersed in the transparent raw glaze, the aluminum silver powder dispersed in the raw glaze is incompletely oxidized at a certain temperature by controlling the amount of the aluminum silver powder, the glossiness and the color depth of the unoxidized aluminum silver powder in the transparent raw glaze generate light and color changes along with the incident angle and the visual angle of incident light to form a 'two-color effect', so that the unoxidized aluminum silver powder reflects certain metal luster and texture in the transparent glaze, and the metal glaze is in a micro-granular crystalline state and has metal luster and texture. Therefore, the reason why the amount of the aluminum silver powder is controlled in the raw material of the metal glaze layer of the lightweight heat-insulating ceramic decorative sheet provided by the invention is that if the amount of the aluminum silver powder is too small, the aluminum silver powder is easily and completely oxidized in the secondary firing process, the finally obtained glaze cannot have metallic luster; if the amount of the aluminum silver powder is too much, more aluminum oxide is formed in the secondary firing process, and the aluminum oxide is yellowish, so that the luster of the glaze is influenced; in addition, the alumina can be fused with other raw materials in the raw glaze, so that the firing temperature of the raw glaze is increased, and if the firing temperature of the raw glaze is too high, the raw glaze is melted and permeates into a biscuit firing blank of the light heat-insulating ceramic decorative board, a better metal glaze layer cannot be formed, and the metal glaze layer cannot have metal luster, so that the amount of the silver-aluminum powder in the raw materials of the metal glaze layer is controlled to be 1-8 parts, and the firing temperature of the metal glaze layer is controlled to be 850-900 ℃.
The metal glaze layer takes perlite tailing powder as a main material, the perlite tailing powder is local perlite ore tailing, the use cost is low, the fineness is small, the grinding is easy, the stable storage amount of components is large, the prepared glaze is sprayed on a biscuit firing blank, the expansion coefficient of the raw materials of the metal glaze layer is small, and the high-temperature adaptability of the blank glaze is greatly improved; and the metal glaze layer has low sintering temperature, short forming time, strong metal texture and better decorative effect.
Further, the main raw materials of the light heat-insulating ceramic decorative board substrate are perlite micro powder and expanded perlite micro powder derived from perlite tailings, and are similar to the main raw materials of the metal glaze layer, so that in the secondary firing process, the expansion coefficient of the biscuit firing body of the light heat-insulating ceramic decorative board substrate is closer to that of the metal glaze layer, and the phase difference is not large.
In addition, the raw materials in the metal glaze layer are basically wide in source, easy to obtain and low in cost, and the firing temperature of the metal glaze layer is 850-900 ℃, so that the preparation method of the light heat-insulating ceramic decorative plate provided by the invention is low in cost, simple and safe, and suitable for industrial application.
Drawings
Fig. 1 is a photograph top view of a lightweight thermal insulation ceramic decorative board provided in embodiment 1 of the present invention.
Fig. 2 is a photograph top view of a lightweight thermal insulation ceramic decorative board provided in embodiment 2 of the present invention.
Fig. 3 is a photograph top view of a lightweight thermal insulation ceramic decorative board provided in embodiment 3 of the present invention.
Fig. 4 is a photograph top view of a lightweight thermal insulation ceramic decorative board provided in embodiment 4 of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
The embodiment provides a light heat preservation ceramic decorative board, and it includes light heat preservation ceramic decorative board base member and metal glazed layer, wherein, metal glazed layer is mainly fired by the raw materials of following parts by mass and is formed: 0.4 part of sodium carboxymethylcellulose, 2 parts of aluminum silver powder, 28 parts of water glass, 30 parts of water, 20 parts of perlite tail powder with the fineness of 100-120 meshes and 20 parts of low-temperature fusion block powder.
Wherein the purity of the sodium carboxymethylcellulose is more than 98%, the substitution degree is 0.85-1.0, and the fineness is less than 10% after 60-mesh sieving; the aluminum silver powder is superfine aluminum silver powder, the purity is more than 99%, and the molecular weight is 26.58; the water glass is industrial-grade sodium silicate, the purity of the water glass is more than 33%, and the specific gravity of the water glass at 20 ℃ is 1.4125; the perlite tail powder comprises the following components in percentage by mass: SiO 22 72％～74%、Al2O3 11％～13%、Fe2O3＜0.50%、Na2O 1.7％～2.5%、K2O 3.5％～4.5%、CaO＜0.5%、MgO＜0.8%、H2O2.0-3.4%, and the balance of impurities, wherein the impurities comprise trace elements and ash; the low-temperature fusion cake powder comprises the following components in percentage by massThe fractional components are as follows: SiO 22 58％～62%，Al2O3 5％～7%，B2O3 21％～22%，Li2O 6.0%～7.0%，Na2O 1.7％～2.5%，K2O＜0.2%，CaO＜0.08%。
The light heat-preservation ceramic decorative board substrate can be prepared from the following raw materials in percentage by mass: 64% of perlite micropowder, 22% of expanded perlite micropowder, 2% of fluorite, 0.8% of black silicon carbide, 10% of bentonite, 1% of sodium metasilicate nonahydrate and 0.2% of sodium humate.
The embodiment also provides a preparation method of the light heat-insulation ceramic decorative plate, which comprises the following steps:
putting perlite micro powder, expanded perlite micro powder, fluorite, black silicon carbide, bentonite, sodium metasilicate nonahydrate, sodium humate and water into a ceramic ball mill according to the proportion of the raw materials of the light heat-insulating ceramic decorative board substrate for ball milling treatment to obtain ceramic slurry; the slurry is sieved, aged and spray-dried to prepare powder, and the powder is aged and then is made into a green body of the light heat-preservation ceramic decorative board substrate in a press-drying forming mode; oxidizing and firing the green body of the light heat-preservation ceramic decorative board substrate at 1000 ℃ to obtain a biscuit firing body;
preparing glaze slip, namely adding perlite tail powder, low-temperature clinker powder, aluminum silver powder, sodium carboxymethylcellulose and water into a rapid ball mill according to the mass parts for mixing, and performing ball milling at the speed of 1400 revolutions per minute for 15min to obtain mixed slip with the viscosity of 40 s in terms of a Tu cup; adding the water glass into the mixed slurry while stirring the mixed slurry by a glass rod at the speed of 100 revolutions per minute to prepare glaze slurry;
uniformly spraying the glaze slip on the biscuit firing blank by adopting a high-pressure manual glaze spraying gun for decoration, wherein the glazing amount is 80 g per square meter, and obtaining a glazing blank;
and (3) firing the glazed blank for 40 min at 850 ℃ by adopting a rapid heating resistance furnace to obtain the finished product of the light heat-insulating ceramic decorative plate. Wherein, in the secondary firing process of the finished product of the light heat-insulating ceramic decorative board, the raw material of the metal glaze layer is fired to form the metal glaze layer which is in a micro-granular crystalline state and has metal texture on the surface of the light heat-insulating ceramic decorative board, and the metal glaze layer is as shown in figure 1: is in a lead-gray and matte state and has an astringent feeling when touched.
Example 2
The embodiment provides a light heat-insulating ceramic decorative board, which has basically the same structure as the light heat-insulating ceramic decorative board provided in embodiment 1, except that:
the metal glaze layer is formed by firing the following raw materials: by mass, 0.5 part of sodium carboxymethylcellulose, 4 parts of aluminum silver powder, 10 parts of water glass, 40 parts of water, 20 parts of perlite tail powder with the fineness of 100-120 meshes and 40 parts of low-temperature clinker powder;
the light heat-preservation ceramic decorative board substrate can be prepared from the following raw materials in percentage by mass: 55% of perlite micropowder, 30% of expanded perlite micropowder, 2.8% of fluorite, 0.8% of black silicon carbide, 8% of bentonite, 1% of sodium metasilicate nonahydrate, 0.2% of sodium humate, 2% of limestone and 0.2% of sodium tripolyphosphate.
The embodiment also provides a preparation method of the light heat-insulation ceramic decorative plate, which comprises the following steps:
putting perlite micro powder, expanded perlite micro powder, fluorite, black silicon carbide, bentonite, sodium metasilicate nonahydrate, sodium humate, limestone, sodium tripolyphosphate and water into a ceramic ball mill according to the proportion of the raw materials of the light heat-insulating ceramic decorative board substrate for ball milling treatment to obtain ceramic slurry; the slurry is sieved, aged and spray-dried to prepare powder, and the powder is aged and then is made into a green body of the light heat-preservation ceramic decorative board substrate in a press-drying forming mode; oxidizing and firing the green body of the light heat-preservation ceramic decorative board substrate at 980 ℃ to obtain a biscuit firing body;
preparing glaze slip, namely adding perlite tail powder, low-temperature clinker powder, aluminum silver powder, sodium carboxymethylcellulose and water into a rapid ball mill according to the mass parts for mixing, and performing ball milling at the speed of 1300 r/min for 20 min to obtain mixed slip with the viscosity of 50 s in terms of a Tu cup; adding the water glass into the mixed slurry while stirring the mixed slurry by using a glaze cylinder motor at the speed of 80 revolutions per minute to prepare glaze slurry;
uniformly spraying the glaze slip on the biscuit firing blank by using a high-pressure manual spray gun for decoration, wherein the glazing amount is 300 g/square meter, and forming a dot pattern for decoration to prepare a glazing blank;
and firing the glazed green body for 35 min at 885 ℃ for the second time to obtain the finished product of the light heat-insulating ceramic decorative board. Wherein, in the secondary firing process of the finished product of the light heat-insulating ceramic decorative board, the raw material of the metal glaze layer is fired to form the metal glaze layer which is in a micro-granular crystalline state and has metal texture on the surface of the light heat-insulating ceramic decorative board, and the metal glaze layer is as shown in figure 2: is in a metal gray and bright state and has a fine point-like concave-convex feeling.
Example 3
The embodiment provides a light heat-insulating ceramic decorative board, which has basically the same structure as the light heat-insulating ceramic decorative board provided in embodiment 1, except that:
the metal glaze layer is formed by firing the following raw materials: 1.0 part of sodium carboxymethylcellulose, 20 parts of water glass, 4 parts of aluminum silver powder, 60 parts of water, 30 parts of perlite tail powder with the fineness of 80-100 meshes and 20 parts of low-temperature clinker powder;
the light heat-preservation ceramic decorative board substrate can be prepared from the following raw materials in percentage by mass: 45% of perlite micropowder, 35% of expanded perlite micropowder, 2% of fluorite, 0.2% of black silicon carbide, 2.8% of bentonite, 0.8% of sodium metasilicate nonahydrate, 0.1% of sodium humate, 12% of Guangdong black mud, 2% of limestone and 0.1% of sodium tripolyphosphate.
The embodiment also provides a preparation method of the light heat-insulation ceramic decorative plate, which comprises the following steps:
putting perlite micro powder, expanded perlite micro powder, fluorite, black silicon carbide, bentonite, sodium metasilicate nonahydrate, sodium humate, limestone, sodium tripolyphosphate and water into a ceramic ball mill according to the proportion of the raw materials of the light heat-insulating ceramic decorative board substrate for ball milling treatment to obtain ceramic slurry; the slurry is sieved, aged and spray-dried to prepare powder, and the powder is aged and then is made into a green body of the light heat-preservation ceramic decorative board substrate in a press-drying forming mode; oxidizing and firing the green body of the light heat-preservation ceramic decorative board substrate at 980 ℃ to obtain a biscuit firing body;
preparing glaze slurry, namely adding perlite tail powder, low-temperature clinker powder, aluminum silver powder, sodium carboxymethylcellulose and water into a rapid ball mill according to the mass parts for mixing, and performing ball milling at the speed of 1350 revolutions per minute for 20 min to obtain mixed slurry with the viscosity of 42 s in terms of a Tu cup; adding the water glass into the mixed slurry while stirring the mixed slurry by using a glaze cylinder motor at the speed of 100 revolutions per minute to prepare glaze slurry;
glazing by using a stretch coating spray gun to spray the glaze slip on the biscuit firing blank body for decoration, wherein the glazing amount is 120 g per square meter, and pattern patterns are formed for decoration to prepare a glazed blank body;
and firing the glazed green body for 30 min at 900 ℃ for the second time to obtain the finished product of the light heat-insulating ceramic decorative board. Wherein, in the secondary firing process of the finished product of the light heat-insulating ceramic decorative board, the raw material of the metal glaze layer is fired to form the metal glaze layer which is in a micro-granular crystalline state and has metal texture on the surface of the light heat-insulating ceramic decorative board, and the metal glaze layer is as shown in figure 3: the printing is in a lead gray and bright state and has obvious color sense.
Example 4
The embodiment provides a light heat-insulating ceramic decorative board, which has basically the same structure as the light heat-insulating ceramic decorative board provided in embodiment 1, except that:
the metal glaze layer is formed by firing the following raw materials: by mass, 0.8 part of sodium carboxymethylcellulose, 12 parts of water glass, 8 parts of aluminum silver powder, 80 parts of water, 40 parts of perlite tail powder with the fineness of 120-200 meshes and 20 parts of low-temperature clinker powder;
the light heat-preservation ceramic decorative board substrate can be prepared from the following raw materials in percentage by mass: 54% of perlite micro powder, 24% of expanded perlite micro powder, 3.9% of fluorite, 0.2% of black silicon carbide, 3% of bentonite, 0.8% of sodium metasilicate nonahydrate, 0.2% of sodium humate, 12% of Guangdong black mud, 2% of limestone and 0.1% of sodium tripolyphosphate.
The embodiment also provides the light heat-insulating ceramic decorative board, which comprises the following steps:
putting perlite micro powder, expanded perlite micro powder, fluorite, black silicon carbide, bentonite, sodium metasilicate nonahydrate, sodium humate, Guangdong black mud, limestone, sodium tripolyphosphate and water into a ceramic ball mill according to the proportion of the raw materials of the light heat-insulating ceramic decorative board substrate for ball milling treatment to obtain ceramic slurry; the slurry is sieved, aged and spray-dried to prepare powder, and the powder is aged and then is made into a green body of the light heat-preservation ceramic decorative board substrate in a press-drying forming mode; oxidizing and firing the green body of the light heat-preservation ceramic decorative board substrate at 980 ℃ to obtain a biscuit firing body;
preparing glaze slip, namely adding perlite tail powder, low-temperature clinker powder, aluminum silver powder, sodium carboxymethylcellulose and water into a rapid ball mill according to the mass parts for mixing, and performing ball milling at the speed of 1500 revolutions per minute for 10 min to obtain mixed slip with the viscosity of 30 s in terms of a Tu cup; adding the water glass into the mixed slurry while stirring the mixed slurry by using a glaze cylinder motor at the speed of 120 revolutions per minute to prepare glaze slurry;
glazing by adopting a double-peak glaze throwing machine to spray the glaze slurry on the biscuit firing blank body for decoration, wherein the glazing amount is 115 g per square meter, and dot patterns are formed for decoration to prepare a glazed blank body;
and firing the glazed green body for 35 min at 875 ℃ for the second firing to obtain the finished product of the light heat-insulating ceramic decorative board. In the secondary firing process of the light heat-insulating ceramic decorative board finished product, the raw materials of the metal glaze layer are fired to form the metal glaze layer which is in a micro-granular crystalline state and has metal texture on the surface of the light heat-insulating ceramic decorative board, and the metal glaze layer is as shown in figure 4: the glaze grains are rough and have sandstone texture.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a light heat preservation ceramic decorative board, its includes light heat preservation ceramic decorative board base member and metal glaze layer, wherein, metal glaze layer is fired by the raw materials of following parts by mass and is formed: 0.3-1.0 part of sodium carboxymethylcellulose, 10-40 parts of water glass, 1-8 parts of aluminum silver powder, 20-45 parts of perlite tail powder, 40-80 parts of water and 15-45 parts of low-temperature clinker powder.
2. The light-weight heat-insulation ceramic decorative board according to claim 1, wherein the fineness of the perlite tailings is 90-200 meshes, and the perlite tailings comprise the following components in percentage by mass: SiO 22 72％～74%、Al2O3 11％～13%、Fe2O3＜0.50%、Na2O 1.7％～2.5%、K2O 3.5％～4.5%、CaO＜0.5%、MgO＜0.8%、H2O 2.0%～3.4%。
3. The light-weight heat-insulation ceramic decorative plate according to claim 1 or 2, wherein the purity of the sodium carboxymethyl cellulose is more than 98%, the substitution degree is 0.85-1.0, and the fineness is less than 10% of a 60-mesh sieve.
4. The lightweight thermal insulation ceramic decorative board of claim 3, wherein the low-temperature fusion cake powder comprises the following components by mass percent: SiO 22 58％～62%、Al2O3 5％～7%、B2O3 21％～22%、Li2O 6.0%～7.0%、Na2O 1.7％～2.5%、K2O＜0.2%、CaO＜0.08%。
5. The lightweight thermal insulation ceramic decorative board according to claim 1, wherein the main raw materials of the lightweight thermal insulation ceramic decorative board substrate are perlite micro powder and expanded perlite micro powder.
6. A preparation method of a light heat-insulating ceramic decorative plate comprises the following steps:
carrying out biscuit firing treatment on the green body of the light heat-preservation ceramic decorative board substrate by biscuit firing once to obtain a biscuit firing green body;
preparing glaze slip, namely mixing and grinding perlite tail powder, low-temperature clinker powder, aluminum silver powder, sodium carboxymethylcellulose and water according to the mass parts of any one of claims 1 to 5 to obtain mixed slip with the viscosity of 30 to 50 s measured by a coating cup; adding the water glass into the mixed slurry while stirring the mixed slurry to prepare glaze slurry;
glazing, namely applying the glaze slip to the biscuit firing blank to prepare a glazed blank;
and firing the glazed blank at 850-900 ℃ for 30-40 min for the second firing to obtain the finished product of the light heat-insulating ceramic decorative board.
7. The method for preparing a light-weight heat-insulating ceramic decorative plate according to claim 6, wherein the step of preparing the glaze slip comprises the following steps: in the process of preparing the mixed slurry, the perlite tail powder, the low-temperature clinker powder, the aluminum silver powder, the sodium carboxymethylcellulose and the water are mixed firstly, and then ball milling is carried out at the speed of 1300-1500 rpm for 10-20 min to prepare the mixed slurry.
8. The method for preparing a lightweight thermal insulation ceramic decorative board according to claim 6 or 7, wherein the step of preparing the glaze slip comprises: and uniformly stirring the mixed slurry manually or electrically at a speed of 80-120 revolutions per minute, and adding the water glass into the mixed slurry to obtain the glaze slurry.
9. The method for preparing a lightweight thermal insulation ceramic decorative board according to claim 8, wherein the glazing step comprises: and applying the glaze slurry to the bisque-fired blank body in a glaze spraying, glaze printing, glaze swinging, glaze dipping or glaze spraying manner, wherein the glazing amount is 80-300 g per square meter, so as to obtain the glazed blank body.
10. The method for preparing the light-weight heat-insulating ceramic decorating plate according to claim 6, wherein the step of primary bisque firing comprises the following steps: and oxidizing and firing the green body of the light heat-preservation ceramic decorative board substrate at 950-1050 ℃ to obtain the biscuit firing body.
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