Preparation method of sanitary ceramic antibacterial glaze containing zirconium silicate
By adding components such as zirconium silicate to the sanitary ceramic antibacterial glaze and using wet ball milling and stirring processes, the existing antibacterial glaze has been solved, and a new sanitary ceramic antibacterial glaze with significant antibacterial properties, wear resistance and aesthetics has been prepared.
Patent Information
- Application Number
- CN202311255062.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-26
- Publication Date
- 2025-03-28
AI Technical Summary
The existing sanitary ceramic antibacterial glazes have problems such as unstable antibacterial effect, poor wear resistance and low aesthetics in actual use.
A sanitary ceramic antibacterial glaze containing zirconium silicate is prepared by mixing zirconium oxide, dialuminum silicate, zirconium silicate, copper oxide, barium carbonate, trace elements and auxiliary materials in proportion, and wet ball milling and stirring through a ball mill, and finally filtering, defoaming and drying, a glaze with significant antibacterial effect, good wear resistance and high aesthetics is obtained.
The glaze prepared by this method has a significant inhibitory effect on common bacteria such as E. coli and Staphylococcus aureus, with an antibacterial rate of up to 99%. At the same time, it improves the hardness and wear resistance of the ceramic surface, and enhances the whiteness and gloss of the glaze.
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Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ceramic glazes, in particular to a method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate. Background Art
[0002] Sanitary ceramics refer to ceramic products widely used in bathrooms, kitchens and other places. Sanitary ceramics have advantages such as chemical resistance, wear resistance and anti-fouling properties, but their surfaces are prone to breeding bacteria and microorganisms, which poses a health hazard during use. In order to solve this problem, researchers added antibacterial materials such as silver ions to sanitary ceramic glazes to improve their antibacterial properties.
[0003] However, the existing sanitary ceramic antibacterial glaze still has many defects in actual use, such as unstable antibacterial effect, poor wear resistance, low aesthetics, etc. Therefore, it is necessary to develop a new type of sanitary ceramic antibacterial glaze to overcome the defects of the prior art. Summary of the invention
[0004] The object of the present invention is to provide a method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate, which has the advantages of significant antibacterial effect, good wear resistance and high aesthetics.
[0005] To achieve the above object, the present invention provides the following technical solution: an antibacterial glaze for sanitary ceramics containing zirconium silicate, comprising the following components:
[0006] Zirconia: 10-25%;
[0007] Aluminum silicate: 15-30%;
[0008] Zirconium silicate: 5-10%;
[0009] Copper oxide: 0.1-0.5%;
[0010] Barium carbonate: 2-4%;
[0011] Trace elements: 0.01-0.1%;
[0012] Auxiliary materials such as water and clay: appropriate amount.
[0013] Preferably, the trace elements are rare earth elements such as Nd, Gd or their oxides.
[0014] A method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate comprises the following steps:
[0015] a) mixing aluminum silicate, zirconium silicate and barium carbonate in proportion and performing wet ball milling in a ball mill to obtain a uniform and fine glaze slurry;
[0016] b) mixing zirconium oxide and copper oxide evenly and adding them into the glaze slurry, and stirring them thoroughly;
[0017] c) adding rare earth elements or their oxides to the above glaze slurry and stirring evenly;
[0018] d) filtering the glaze slurry, removing bubbles and then drying it to obtain the antibacterial glaze for sanitary ceramics containing zirconium silicate.
[0019] Preferably, the ball milling time is 6-8 hours, and the ratio of water to particles is 2:1.
[0020] Preferably, the stirring time of the stirrer is 10-30 min, and the stirring speed of the stirrer is 200-400 rpm.
[0021] Preferably, the rare earth elements are pre-mixed and then directly added to the glaze slurry, and the stirring time of the stirrer is 20-40 minutes and the stirring speed is 300-500 rpm.
[0022] Preferably, the filtration is performed using a 300-mesh screen, and after the filtration, the degassing is performed using a vacuum degassing method.
[0023] Preferably, the drying temperature is 100-150° C. and the drying time is 3-6 hours.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] 1. Significant antibacterial effect: Experiments have shown that the antibacterial glaze can effectively inhibit common bacteria such as Escherichia coli and Staphylococcus aureus, with an antibacterial rate of over 99%.
[0026] 2. Good wear resistance: The addition of zirconium silicate can improve the hardness and wear resistance of the surface of sanitary ceramics, making it more durable.
[0027] 3. High aesthetics: Adding trace elements such as rare earth elements can enhance the whiteness and glossiness of the glaze, making sanitary ceramics more beautiful. DETAILED DESCRIPTION
[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] Embodiment 1
[0030] Zirconia: 10%;
[0031] Aluminium silicate: 30%;
[0032] Zirconium silicate: 5%;
[0033] Copper oxide: 0.1%;
[0034] Barium carbonate: 4%;
[0035] Trace elements: 0.03%;
[0036] Auxiliary materials such as water and clay: appropriate amount.
[0037] A method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate comprises the following steps:
[0038] a) Aluminum silicate, zirconium silicate and barium carbonate are mixed uniformly in proportion, and wet-milled by a ball mill to obtain a uniform and fine glaze slurry; the milling time of the ball mill is 6 hours, and the ratio of water to particles is 2:1.
[0039] b) Mix zirconium oxide and copper oxide evenly and add them into the glaze slurry, and stir them thoroughly; the stirring time of the stirrer is 15 minutes, and the stirring speed of the stirrer is 200 rpm.
[0040] c) adding rare earth elements or their oxides to the above glaze slurry and stirring evenly; after premixing the rare earth elements evenly, directly adding them to the glaze slurry, stirring for 20 minutes with a stirring speed of 300 rpm.
[0041] d) filtering the glaze slurry, removing bubbles and then drying to obtain an antibacterial glaze for sanitary ceramics containing zirconium silicate, wherein the glaze slurry is filtered with a 300-mesh screen and after filtering, the bubbles are removed by vacuum degassing, the drying temperature is 130° C., and the drying time is 3 hours.
[0042] Embodiment 2
[0043] Zirconia: 12.5%;
[0044] Aluminium silicate: 27.5%;
[0045] Zirconium silicate: 6%;
[0046] Copper oxide: 0.2%;
[0047] Barium carbonate: 3.5%;
[0048] Trace elements: 0.03%;
[0049] Auxiliary materials such as water and clay: appropriate amount.
[0050] A method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate comprises the following steps:
[0051] a) Aluminum silicate, zirconium silicate and barium carbonate are mixed uniformly in proportion, and wet-milled by a ball mill to obtain a uniform and fine glaze slurry; the milling time of the ball mill is 6 hours, and the ratio of water to particles is 2:1.
[0052] b) Mix zirconium oxide and copper oxide evenly and add them into the glaze slurry, and stir them thoroughly; the stirring time of the stirrer is 15 minutes, and the stirring speed of the stirrer is 200 rpm.
[0053] c) adding rare earth elements or their oxides to the above glaze slurry and stirring evenly; after premixing the rare earth elements evenly, directly adding them to the glaze slurry, stirring for 20 minutes with a stirring speed of 300 rpm.
[0054] d) filtering the glaze slurry, removing bubbles and then drying to obtain an antibacterial glaze for sanitary ceramics containing zirconium silicate, wherein the glaze slurry is filtered with a 300-mesh screen and after filtering, the bubbles are removed by vacuum degassing, the drying temperature is 130° C., and the drying time is 3 hours.
[0055] Embodiment 3
[0056] Zirconia: 15%;
[0057] Aluminium silicate: 25%;
[0058] Zirconium silicate: 7%;
[0059] Copper oxide: 0.3%;
[0060] Barium carbonate: 3%;
[0061] Trace elements: 0.03%;
[0062] Auxiliary materials such as water and clay: appropriate amount.
[0063] A method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate comprises the following steps:
[0064] a) Aluminum silicate, zirconium silicate and barium carbonate are mixed uniformly in proportion, and wet-milled by a ball mill to obtain a uniform and fine glaze slurry; the milling time of the ball mill is 6 hours, and the ratio of water to particles is 2:1.
[0065] b) Mix zirconium oxide and copper oxide evenly and add them into the glaze slurry, and stir them thoroughly; the stirring time of the stirrer is 15 minutes, and the stirring speed of the stirrer is 200 rpm.
[0066] c) adding rare earth elements or their oxides to the above glaze slurry and stirring evenly; after premixing the rare earth elements evenly, directly adding them to the glaze slurry, stirring for 20 minutes with a stirring speed of 300 rpm.
[0067] d) filtering the glaze slurry, removing bubbles and then drying to obtain an antibacterial glaze for sanitary ceramics containing zirconium silicate, wherein the glaze slurry is filtered with a 300-mesh screen and after filtering, the bubbles are removed by vacuum degassing, the drying temperature is 130° C., and the drying time is 3 hours.
[0068] Embodiment 4
[0069] Zirconia: 10%;
[0070] Aluminium silicate: 30%;
[0071] Zirconium silicate: 5%;
[0072] Copper oxide: 0.1%;
[0073] Barium carbonate: 4%;
[0074] Trace elements: 0.03%;
[0075] Auxiliary materials such as water and clay: appropriate amount.
[0076] A method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate comprises the following steps:
[0077] a) Aluminum silicate, zirconium silicate and barium carbonate are mixed uniformly in proportion, and wet-milled by a ball mill to obtain a uniform and fine glaze slurry; the milling time of the ball mill is 6 hours, and the ratio of water to particles is 2:1.
[0078] b) Mix zirconium oxide and copper oxide evenly and add them into the glaze slurry, and stir them thoroughly; the stirring time of the stirrer is 15 minutes, and the stirring speed of the stirrer is 200 rpm.
[0079] c) adding rare earth elements or their oxides to the above glaze slurry and stirring evenly; after premixing the rare earth elements evenly, directly adding them to the glaze slurry, stirring for 20 minutes with a stirring speed of 300 rpm.
[0080] d) filtering the glaze slurry, removing bubbles and then drying to obtain an antibacterial glaze for sanitary ceramics containing zirconium silicate, wherein the glaze slurry is filtered through a 300-mesh screen and after filtering, the bubbles are removed by vacuum degassing, the drying temperature is 100° C., and the drying time is 3 hours.
[0081] Embodiment 5
[0082] Zirconia: 12.5%;
[0083] Aluminium silicate: 27.5%;
[0084] Zirconium silicate: 6%;
[0085] Copper oxide: 0.2%;
[0086] Barium carbonate: 3.5%;
[0087] Trace elements: 0.03%;
[0088] Auxiliary materials such as water and clay: appropriate amount.
[0089] A method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate comprises the following steps:
[0090] a) Aluminum silicate, zirconium silicate and barium carbonate are mixed uniformly in proportion, and wet-milled by a ball mill to obtain a uniform and fine glaze slurry; the milling time of the ball mill is 6 hours, and the ratio of water to particles is 2:1.
[0091] b) Mix zirconium oxide and copper oxide evenly and add them into the glaze slurry, and stir them thoroughly; the stirring time of the stirrer is 15 minutes, and the stirring speed of the stirrer is 200 rpm.
[0092] c) adding rare earth elements or their oxides to the above glaze slurry and stirring evenly; after premixing the rare earth elements evenly, directly adding them to the glaze slurry, stirring for 20 minutes with a stirring speed of 300 rpm.
[0093] d) filtering the glaze slurry, removing bubbles and then drying to obtain an antibacterial glaze for sanitary ceramics containing zirconium silicate, wherein the glaze slurry is filtered with a 300-mesh screen and after filtering, the bubbles are removed by vacuum degassing, the drying temperature is 110° C., and the drying time is 3 hours.
[0094] Embodiment 6
[0095] Zirconia: 15%;
[0096] Aluminium silicate: 25%;
[0097] Zirconium silicate: 7%;
[0098] Copper oxide: 0.3%;
[0099] Barium carbonate: 3%;
[0100] Trace elements: 0.03%;
[0101] Auxiliary materials such as water and clay: appropriate amount.
[0102] A method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate comprises the following steps:
[0103] a) Aluminum silicate, zirconium silicate and barium carbonate are mixed uniformly in proportion, and wet-milled by a ball mill to obtain a uniform and fine glaze slurry; the milling time of the ball mill is 6 hours, and the ratio of water to particles is 2:1.
[0104] b) Mix zirconium oxide and copper oxide evenly and add them into the glaze slurry, and stir them thoroughly; the stirring time of the stirrer is 15 minutes, and the stirring speed of the stirrer is 200 rpm.
[0105] c) adding rare earth elements or their oxides to the above glaze slurry and stirring evenly; after premixing the rare earth elements evenly, directly adding them to the glaze slurry, stirring for 20 minutes with a stirring speed of 300 rpm.
[0106] d) filtering the glaze slurry, removing bubbles and then drying to obtain an antibacterial glaze for sanitary ceramics containing zirconium silicate, wherein the glaze slurry is filtered with a 300-mesh screen and after filtering, the bubbles are removed by vacuum degassing, the drying temperature is 140° C., and the drying time is 3 hours.
[0107] Comparative Examples 1-9 and Blank Experiment Group
[0108] In the glazes prepared in Comparative Examples 1-9 and the blank experimental group and Example 3, only the drying temperature was adjusted.
[0109] Specific
[0110] In comparative example 1, after the sanitary ceramic antibacterial glaze is defoamed by vacuum defoaming, the drying temperature is 80° C. and the drying time is 3 h.
[0111] In comparative example 2, after the sanitary ceramic antibacterial glaze was defoamed by vacuum defoaming, the drying temperature was 90° C. and the drying time was 3 h.
[0112] In comparative example 3, after the sanitary ceramic antibacterial glaze is defoamed by vacuum defoaming, the drying temperature is 100° C. and the drying time is 3 hours.
[0113] In comparative example 4, after the sanitary ceramic antibacterial glaze was defoamed by vacuum defoaming, the drying temperature was 110° C. and the drying time was 3 h.
[0114] In comparative example 5, after the sanitary ceramic antibacterial glaze is defoamed by vacuum defoaming, the drying temperature is 120° C. and the drying time is 3 hours.
[0115] In comparative example 6, after the sanitary ceramic antibacterial glaze is defoamed by vacuum defoaming, the drying temperature is 130° C. and the drying time is 3 hours.
[0116] In comparative example 7, after the sanitary ceramic antibacterial glaze is defoamed by vacuum defoaming, the drying temperature is 140° C. and the drying time is 3 hours.
[0117] In comparative example 8, after the sanitary ceramic antibacterial glaze was defoamed by vacuum defoaming, the drying temperature was 150° C. and the drying time was 3 h.
[0118] In comparative example 9, after the sanitary ceramic antibacterial glaze was defoamed by vacuum defoaming, the drying temperature was 160° C. and the drying time was 3 h.
[0119] In blank experiment group 1, after the sanitary ceramic antibacterial glaze was defoamed by vacuum degassing, the drying temperature was 30°C and the drying time was 3h.
[0120] Test antibacterial properties:
[0121] Common bacteria such as Escherichia coli and Staphylococcus aureus were inoculated on the surface of the sanitary ceramic antibacterial glaze prepared in Comparative Example 1, Comparative Example 2, Comparative Example 3, Comparative Example 4, Comparative Example 5, Comparative Example 6, Comparative Example 7, Comparative Example 8, Comparative Example 9, Example 3 and Blank Experiment Group 1, and after being placed for a period of time, samples were taken with a sterile cotton swab and cultured on an agar plate. After a certain period of culture, the colony was observed and the antibacterial rate was calculated.
[0122] Test hardness and wear resistance:
[0123] The sanitary ceramic antibacterial glaze prepared in Comparative Example 1, Comparative Example 2, Comparative Example 3, Comparative Example 4, Comparative Example 5, Comparative Example 6, Comparative Example 7, Comparative Example 8, Comparative Example 9, Example 3 and Blank Experiment Group 1 was coated on the ceramic surface and sintered. Then, a universal material testing machine was used to perform compression and bending tests to measure the hardness and strength indexes.
[0124] Test aesthetics:
[0125] The aesthetics of the sanitary ceramic antibacterial glaze prepared by Comparative Example 1, Comparative Example 2, Comparative Example 3, Comparative Example 4, Comparative Example 5, Comparative Example 6, Comparative Example 7, Comparative Example 8, Comparative Example 9, Example 3 and Blank Experiment Group 1 were evaluated by comparing the differences in whiteness, glossiness, etc.
[0126] The test results are as follows:
[0127]
[0128]
[0129] In summary, the antibacterial glaze for sanitary ceramics containing zirconium silicate and the preparation method thereof provided by the present invention have significant advantages. Experimental tests show that the glaze has good antibacterial properties, hardness and wear resistance, and also has high aesthetics.
[0130] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0131] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An antibacterial glaze for sanitary ceramics containing zirconium silicate, characterized in that: Includes the following components: Zirconia: 10-25%; Aluminum silicate: 15-30%; Zirconium silicate: 5-10%; Copper oxide: 0.1-0.5%; Barium carbonate: 2-4%; Trace elements: 0.01-0.1%; Auxiliary materials such as water and clay: appropriate amount.
2. The antibacterial glaze for sanitary ceramics containing zirconium silicate according to claim 1, characterized in that: The trace elements include rare earth elements such as Nd, Gd or their oxides.
3. A method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate, characterized in that: The following steps are included: a) mixing aluminum silicate, zirconium silicate and barium carbonate in proportion and performing wet ball milling in a ball mill to obtain a uniform and fine glaze slurry; b) mixing zirconium oxide and copper oxide evenly and adding them into the glaze slurry, and stirring them thoroughly; c) adding rare earth elements or their oxides to the above glaze slurry and stirring evenly; d) filtering the glaze slurry, removing bubbles and then drying it to obtain the antibacterial glaze for sanitary ceramics containing zirconium silicate.
4. The method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate according to claim 3, characterized in that: The ball milling time is 6-8 hours, and the water to particle ratio is 2:
1.
5. The method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate according to claim 3, characterized in that: The stirring time of the stirrer is 10-30 minutes, and the stirring speed of the stirrer is 200-400 rpm.
6. The method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate according to claim 3, characterized in that: After premixing the rare earth elements evenly, add them directly into the glaze slurry. The stirring time of the stirrer is 20-40 minutes and the stirring speed is 300-500 rpm.
7. The method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate according to claim 3, characterized in that: The filtrate was filtered through a 300-mesh sieve, and after filtering, a vacuum defoaming method was used to remove bubbles.
8. The method for preparing an antibacterial glaze for sanitary ceramics containing zirconium silicate according to claim 3, characterized in that: The drying temperature is 100-150°C and the drying time is 3-6h.