CN113831017A - Application to improving anatase TiO2Super-hydrophilic self-cleaning ceramic glaze coating and application method thereof - Google Patents

Application to improving anatase TiO2Super-hydrophilic self-cleaning ceramic glaze coating and application method thereof Download PDF

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CN113831017A
CN113831017A CN202110859978.3A CN202110859978A CN113831017A CN 113831017 A CN113831017 A CN 113831017A CN 202110859978 A CN202110859978 A CN 202110859978A CN 113831017 A CN113831017 A CN 113831017A
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glaze
coating
cati
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solution
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CN113831017B (en
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董伟霞
曹体浩
包启富
赵田贵
任宁
顾幸勇
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Jingdezhen Ceramic Institute
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/86—Glazes; Cold glazes

Abstract

The invention relates to a method for improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze and the application method thereof, the coating comprises the following components by mass percent: 13-17 wt% of deionized water, 12-17 wt% of strong acid, 55-60 wt% of titanium source, 5-10 wt% of inducer and 6-12 wt% of absolute ethyl alcohol. The method calcines the catalyst containing an inducer CaTi in an oxidizing atmosphere2O5Of TiO22Precursor coating to promote the formation of anatase TiO at low temperature2The contact angle of the glaze is effectively reduced, the glaze is suitable for various glazes, the super-hydrophilic effect of the glaze is realized, the self-cleaning performance of different ceramic glazes is improved, and the glaze has wide application range and application prospect.

Description

Application to improving anatase TiO2Super-hydrophilic self-cleaning ceramic glaze coating and application method thereof
Technical Field
The invention relates to the field of ceramic glaze cleaning, in particular to a coating for improving super-hydrophilicity self-cleaning ceramic glaze of anatase TiO2 and an application method thereof.
Background
Along with the economic development and society of the countryThe improvement of the living standard of people is continuously improved, and the traditional building ceramics and sanitary ceramics have poor stain resistance and pollution resistance, so that the expectation of people on high-quality products is difficult to meet. In order to increase the value of conventional ceramics, it becomes increasingly important to impart good self-cleaning properties thereto. The ceramic glaze is a vitreous thin layer on the surface of ceramic formed by using silicate raw materials such as quartz, calcite and the like as main raw materials and roasting and melting the raw materials at a certain temperature. In application CN202010117271.0, surfactant CaTi2O5The super-hydrophilic glaze is prepared by adding the phase-splitting glaze, but the super-hydrophilic glaze has strong opalescence, thus greatly limiting the application. The application overcomes the defects of only being suitable for split-phase glaze and the like, and utilizes an inducer CaTi2O5Is added to TiO2Immersing ceramic glaze in sol system, coating film and calcining to obtain anatase TiO2Overcomes the defects of the prior TiO2The coating is not firmly combined with the ceramic glaze, and anatase is easily converted into rutile during high-temperature calcination, so that the hydrophilicity of the glaze is reduced, and the like. Therefore, the application patent adds an inducer CaTi on the surface of the ceramic glaze2O5Of TiO22The coating not only greatly reduces the wetting angle of the glaze surface and improves the self-cleaning performance of the ceramic glaze, but also is suitable for various glaze types, greatly widens the practical application field of the ceramic glaze, and has a promoting effect on the development of the ceramic industry.
Disclosure of Invention
The invention aims to prepare a catalyst for improving anatase TiO2A super-hydrophilic self-cleaning ceramic glaze coating provides a preparation and application method of a coating with super-hydrophilic performance, which has low cost and simple process, and can be produced in large scale.
In order to solve the technical problems, the technical scheme of the invention is as follows: application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 13-17 wt% of deionized water, 12-17 wt% of strong acid, 55-60 wt% of titanium source, 5-10 wt% of inducer and 6-12 wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, and the strong acid is concentrated sulfuric acidOr concentrated hydrochloric acid, and inducing agent is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Uniformly stirring for 10-15 min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 3-5 min at the speed of 1-3 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 1-2 min at the speed of 0.5-1 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The application method is characterized in that: the calcining temperature in the third step is 700-800 ℃, and the heat preservation time is 30-60 min.
The application method is characterized in that: and the drying temperature in the third step is 45-60 ℃.
The application method is characterized in that: the wetting angle of the product obtained in the third step is 3.555-3.581 degrees, the alkali resistance is 1.25-1.50 degrees, and the residual amount of oil stain is 3.402-3.452.
The invention has the beneficial effects that:
(1) the invention introduces CaTi into the glaze surface2O5Inducer, making it decompose anatase TiO in situ at higher temp2The hydrophilicity of the glaze is improved, so that the glaze has self-cleaning performance. While CaTi2O5The inducer can decompose CaO and other alkaline components similar to the alkali components in the glaze in situ, and can be used for decomposing SiO in the glaze2Chemical reaction is generated, so that the glaze and the coating are promoted to form an intermediate layer, and the bonding property of the coating and the glaze is enhanced.
(2) The CaTi2O5In-situ decomposition of anatase TiO by inducer2The preparation method of the coating is simple and is suitable for various ceramic glaze surfaces.
Drawings
FIG. 1 is a chart of the wetting angle of the article of example 1;
FIG. 2 is an XRD examination of the article of example 1;
FIG. 3 is an SEM examination of an article of example 1.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following embodiments, methods, steps, features and effects will be described in detail with reference to the following embodiments for a coating layer applied to enhance anatase TiO2 super-hydrophilic self-cleaning ceramic glaze and its application method according to the present invention:
example 1:
application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 14wt% of deionized water, 14wt% of strong acid, 56wt% of titanium source, 10wt% of inducer and 6wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, the strong acid is concentrated hydrochloric acid, and the inducer is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Sol gelAdding CaTi2O5Uniformly stirring for 10min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Dissolving in sol for 3min, and slowly pulling out at a speed of 1 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 1min at the speed of 0.5 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The calcining temperature in the third step is 700 ℃, and the heat preservation time is 30 min.
The drying temperature in the third step is 45 ℃.
And the wetting angle of the product obtained in the third step is 3.555 degrees, the alkali resistance is 1.25, and the residual amount of oil stain is 3.402.
From FIG. 2, it can be seen that the super-hydrophilic self-cleaning ceramic glaze coating layer surface is mainly composed of anatase TiO2(PDF card 21-1272) phase composition, and endows the glaze surface with excellent super-hydrophilic performance. It can be seen from fig. 3 that the glaze is composed of particles with uniform size, and the glaze is endowed with the characteristics of flatness, smoothness and the like.
Example 2:
application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 13wt% of deionized water, 15wt% of strong acid, 60wt% of titanium source, 5wt% of inducer and 7wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, the strong acid is concentrated sulfuric acid, and the inducer is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, the anhydrous ethanol and the titanium source are sequentially dripped into a beaker and stirred by magnetic force untilUniformly mixing, and marking as a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Stirring for 11min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Dissolving in sol for 4min, and slowly pulling out at a speed of 2 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 1.5min at the speed of 0.6 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The calcining temperature in the third step is 720 ℃, and the heat preservation time is 35 min.
The drying temperature in the third step is 55 ℃.
And the wetting angle of the product obtained in the third step is 3.571 degrees, the alkali resistance is 1.28 degrees, and the residual amount of oil stain is 3.404 degrees.
Example 3:
application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 15wt% of deionized water, 12wt% of strong acid, 55wt% of titanium source, 6wt% of inducer and 12wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, the strong acid is concentrated hydrochloric acid, and the inducer is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Uniformly stirring for 12min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Dissolving in sol for 5min, and slowly pulling out at a speed of 3 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Dissolving in sol for 2min, and slowly pulling out at a speed of 0.7 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The calcining temperature in the third step is 730 ℃, and the heat preservation time is 40 min.
The drying temperature in the third step is 60 ℃.
And the wetting angle of the product obtained in the third step is 3.556 degrees, the alkali resistance is 1.30 degrees, and the oil stain residual amount is 3.412 degrees.
Example 4:
application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 13wt% of deionized water, 13wt% of strong acid, 57wt% of titanium source, 7wt% of inducer and 10wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, the strong acid is concentrated sulfuric acid, and the inducer is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Stirring for 13min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Dissolving in sol for 4min, and slowly pulling out at a speed of 2 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 1.8min at the speed of 0.8 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The calcining temperature in the third step is 740 ℃, and the heat preservation time is 45 min.
The drying temperature in the third step is 53 ℃.
And the wetting angle of the product obtained in the third step is 3.559 degrees, the alkali resistance is 1.35, and the residual amount of oil stain is 3.418.
Example 5:
application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 13wt% of deionized water, 16wt% of strong acid, 55wt% of titanium source, 7wt% of inducer and 9wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, the strong acid is concentrated hydrochloric acid, and the inducer is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Uniformly stirring for 14min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Dissolving in sol for 5min, and slowly pulling out at a speed of 3 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 1.6min at the speed of 0.9 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The calcining temperature in the third step is 750 ℃, and the heat preservation time is 50 min.
The drying temperature in the third step is 60 ℃.
And the wetting angle of the product obtained in the third step is 3.575 degrees, the alkali resistance is 1.40 degrees, and the residual amount of oil stain is 3.420 degrees.
Example 6:
application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 17wt% of deionized water, 17wt% of strong acid, 56wt% of titanium source, 8wt% of inducer and 11wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, the strong acid is concentrated sulfuric acid, and the inducer is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Uniformly stirring for 15min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Dissolving in sol for 3min, and slowly pulling out at a speed of 1 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 1.7min at the speed of 1 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The calcining temperature in the third step is 800 ℃, and the heat preservation time is 55 min.
The drying temperature in the third step is 45 ℃.
And the wetting angle of the product obtained in the third step is 3.581 degrees, the alkali resistance is 1.45 degrees, and the residual amount of oil stain is 3.440 degrees.
Example 7:
application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 17wt% of deionized water, 12wt% of strong acid, 55wt% of titanium source, 9wt% of inducer and 7wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, the strong acid is concentrated hydrochloric acid, and the inducer is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Stirring for 13min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Dissolving in sol for 5min, and slowly pulling out at a speed of 3 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Dissolving in sol for 2min, and slowly pulling out at a speed of 0.5 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The calcining temperature in the third step is 750 ℃, and the heat preservation time is 30 min.
The drying temperature in the third step is 60 ℃.
The wetting angle of the product obtained in the third step is 3.564 degrees, the alkali resistance is 1.48, and the residual amount of greasy dirt is 3.446.
Example 8:
application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 15wt% of deionized water, 12wt% of strong acid, 58wt% of titanium source, 8wt% of inducer and 7wt% of absolute ethyl alcohol.
The titanium source is tetrabutyl titanate, the strong acid is concentrated sulfuric acid, and the inducer is CaTi2O5。
The application method of the coating is characterized by comprising the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Uniformly stirring for 14min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Dissolving in sol for 4min, and slowly pulling out at a speed of 2 mm/s; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 1min at the speed of 0.6 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
The calcining temperature in the third step is 700 ℃, and the heat preservation time is 60 min.
The drying temperature in the third step is 55 ℃.
And the wetting angle of the product obtained in the third step is 3.556 degrees, the alkali resistance is 1.50 degrees, and the oil stain residual amount is 3.452 degrees.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and scope of the present invention is also included in the present invention.

Claims (6)

1. Application to improving anatase TiO2The coating of the super-hydrophilic self-cleaning ceramic glaze is characterized by comprising the following components in percentage by mass: 13-17 wt% of deionized water, 12-17 wt% of strong acid, 55-60 wt% of titanium source, 5-10 wt% of inducer and 6-12 wt% of absolute ethyl alcohol.
2. The coating of claim 1, wherein: the titanium source is tetrabutyl titanate, the strong acid is concentrated sulfuric acid or concentrated hydrochloric acid, and the inducer is CaTi2O5。
3. Method for applying a coating according to claim 1 or 2, characterized in that it comprises the following steps:
step one, preparing a coating: according to the mass percentage composition of the coating, firstly, sequentially dropwise adding deionized water and strong acid into a beaker, and stirring by magnetic force until the deionized water and the strong acid are uniformly mixed, and marking as a solution A; then, dropwise adding anhydrous ethanol and a titanium source into a beaker in sequence, and stirring the mixture uniformly by magnetic force to obtain a solution B; then slowly dripping the solution A into the solution B, and magnetically stirring for 20min to form TiO2Sol, finally in TiO2Adding CaTi into the sol2O5Uniformly stirring for 10-15 min to obtain the product containing CaTi2O5Of TiO22Sol;
step two, glaze coating: immersing the glaze sheet completely in a solution containing CaTi2O5Of TiO22Slowly lifting and pulling the sol for 3-5 min at the speed of 1-3 mm/sDischarging; then the glaze sheet is completely immersed in the solution containing CaTi2O5Of TiO22Slowly pulling out the sol for 1-2 min at the speed of 0.5-1 mm/s;
step three, firing: and drying the coated glaze sheets, then putting the glaze sheets into a kiln to calcine in an oxidizing atmosphere, and naturally cooling the glaze sheets after being taken out of the kiln to obtain the product.
4. The method of application according to claim 3, characterized in that: the calcining temperature in the third step is 700-800 ℃, and the heat preservation time is 30-60 min.
5. The method of application according to claim 3, characterized in that: and the drying temperature in the third step is 45-60 ℃.
6. The method of application according to claim 3, characterized in that: the wetting angle of the product obtained in the third step is 3.555-3.581 degrees, the alkali resistance is 1.25-1.50 degrees, and the residual amount of oil stain is 3.402-3.452.
CN202110859978.3A 2021-07-28 2021-07-28 Application to improving anatase TiO 2 Super-hydrophilic self-cleaning ceramic glaze coating and application method thereof Active CN113831017B (en)

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US20200347501A1 (en) * 2019-05-02 2020-11-05 King Fahd University Of Petroleum And Minerals FABRICATION OF PHOTOACTIVE CaTiO3-TiO2 COMPOSITE THIN FILM ELECTRODES VIA SINGLE STEP AACVD

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829985A1 (en) * 1978-07-07 1980-01-17 Reimbold & Strick Frit or glaze contg. calcium titanium silicate as opacifier - to obtain dense opaque white glaze which does not discolour
JP2001286755A (en) * 2000-04-06 2001-10-16 Showa Highpolymer Co Ltd Photocatalytic composition which can be excited by visible light and photocatalytic thin film, and their manufacturing methods
JP2004097868A (en) * 2002-09-05 2004-04-02 Jfe Steel Kk Photocatalyst and manufacturing method of composite material having photocatalyst film formed thereon
US20050008777A1 (en) * 2003-07-08 2005-01-13 Mccleskey Thomas M. Polymer-assisted deposition of films
WO2010053459A1 (en) * 2008-11-07 2010-05-14 Univerza V Novi Gorici Preparation of tio2/sio2 sols and use thereof for deposition of self-cleaning anti- fogging coatings
KR20100132898A (en) * 2009-06-10 2010-12-20 주식회사 프레코 Anti-sticking paints composition, anti-sticking sheet using thereof
US20200347501A1 (en) * 2019-05-02 2020-11-05 King Fahd University Of Petroleum And Minerals FABRICATION OF PHOTOACTIVE CaTiO3-TiO2 COMPOSITE THIN FILM ELECTRODES VIA SINGLE STEP AACVD

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