A kind of health-preserving antibacterial ceramic glaze and preparation method thereof

Abstract

The invention discloses a health-preserving antibacterial ceramic glaze and a preparation method thereof. The glaze comprises a basic glaze, an antibacterial additive, a water softener, and the balance is water. The basic glaze comprises potassium feldspar, quartz sand, calcite, black jade, diatomaceous earth, kaolin, nano titanium dioxide, boric acid, rubidium, and niobium pentoxide. The antibacterial additive comprises tourmaline, antibacterial peptide, and modified medical stone. The invention performs airflow pulverization on tourmaline powder to increase the amount of negative ion release. After the ceramic product is glazed and calcined, the product still has a good negative ion release function, and gives the ceramic product good functions. The medical stone, sepiolite, and graphene are subjected to a composite modification treatment to make the medical stone have good adsorption. The medical stone is then mixed with the basic glaze, the tourmaline powder, and the antibacterial peptide, so that the negative ions released by the tourmaline can enhance the effects of other antibacterial substances in the air. Compared with conventional glaze powder, the product can load more antibacterial substances and has excellent antibacterial effect.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic glazes, and in particular to a health-preserving and antibacterial ceramic glaze and a preparation method thereof. Background Art

[0002] Ceramics are an important type of porcelain products. They are mainly building or decorative materials obtained through grinding, mixing, pressing, glazing, sintering and other processes of metal oxides and semi-metal oxides. When they are used in hospitals, restaurants and other places, as well as kitchens, bathrooms and other occasions in the home, antibacterial ceramics are the product of combining ceramic technology with antibacterial technology. While maintaining the original functions and decorative effects of ceramic products, they add disinfection, sterilization and mildew prevention functions, and have a wider range of applications.

[0003] At present, antibacterial ceramics are mainly divided into two types: metal ion doped antibacterial ceramics and photocatalytic antibacterial ceramics. Among them, metal ion doped antibacterial ceramics are made by directly adding antibacterial agents containing metal ions such as silver, zinc, and copper into ceramic glazes and firing them. At high temperatures, the glaze will chemically react with the antibacterial agent components, thereby destroying the structure of the antibacterial agent and reducing its antibacterial properties, making it difficult to meet actual needs. Summary of the invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a health-preserving and antibacterial ceramic glaze and a preparation method thereof to solve the problems raised in the above background technology.

[0005] The present invention solves the technical problem by adopting the following technical solution: The present invention provides a health-preserving and antibacterial ceramic glaze, comprising the following raw materials: Basic glaze, antibacterial additives, water softener, the balance is water, the basic glaze includes potassium feldspar, quartz sand, calcite, black jade, diatomaceous earth, kaolin, nano titanium dioxide, boric acid, rubidium, niobium pentoxide, the antibacterial additives include tourmaline, antibacterial peptides, modified medical stone; The specific formula includes the following raw materials: 70-80 parts of basic glaze, 6-8 parts of antibacterial additives, 2-3 parts of water softeners, and the balance is water. The basic glaze includes 18-26 parts of potassium feldspar, 12-15 parts of quartz sand, 5-10 parts of calcite, 3-5 parts of black jade, 10-18 parts of diatomaceous earth, 3-5 parts of kaolin, 4-8 parts of nano titanium dioxide, 2-5 parts of boric acid, 1-2 parts of rubidium, and 1-3 parts of niobium pentoxide. The antibacterial additive includes 20-30 parts of tourmaline, 8-10 parts of antibacterial peptides, and 30-40 parts of modified medical stone.

[0006] Preferably, the health-preserving and antibacterial ceramic glaze comprises the following raw materials: The invention discloses a basic glaze comprising 75 parts of basic glaze, 7 parts of antibacterial additive, 2.5 parts of water softener and the balance of water. The basic glaze comprises 20 parts of potassium feldspar, 13 parts of quartz sand, 8 parts of calcite, 4 parts of black jade stone, 15 parts of diatomaceous earth, 4 parts of kaolin, 6 parts of nano titanium dioxide, 3 parts of boric acid, 1.5 parts of rubidium and 2 parts of niobium pentoxide. The antibacterial additive comprises 25 parts of tourmaline, 9 parts of antibacterial peptide and 35 parts of modified medical stone.

[0007] Preferably, the preparation method of the modified medical stone comprises the following steps: S1. Place medical stone, sepiolite and graphene in a grinder and grind them sufficiently until the materials can pass through a 500-800 mesh sieve to obtain a composite material; S2, adding the composite ingredients to 40-60 parts by weight of sodium alginate solution, dispersing evenly, then heating to 75-90° C., and performing ultrasonic treatment; S3, adding 0.2-0.4 parts by weight of silane coupling agent, stirring at a speed of 400-500 r / min for 4-6 hours, filtering and drying to obtain modified medical stone.

[0008] Preferably, the ratio of the composite material to water in S1 is 1:0.7-0.8, and the grinding time is 18-20 hours.

[0009] Preferably, the ultrasonic treatment power in S2 is 600-700 W, and the ultrasonic treatment time is 50-60 min.

[0010] Preferably, the silane coupling agent in S3 is silane coupling agent KH172.

[0011] Preferably, the water softener is one or more of disodium hydrogen phosphate, sodium carbonate, trisodium phosphate, sodium tripolyphosphate, sodium hexametaphosphate, sodium nitrilotriacetate, sodium carboxymethyl succinate, and sodium silicate.

[0012] The present invention also provides a method for preparing a health-preserving and antibacterial ceramic glaze, comprising the following steps: Step 1: add the basic glaze, tourmaline and antimicrobial peptide into a ball mill, then add water and ball-mill to 200-300 mesh, sieve, dry and air-grind to obtain fine powder, then add water and mix with modified medical stone, stir for 70-80 minutes, remove iron in the mixture to obtain a standby glaze slurry; Step 2: Place the formed ceramic green body into a kiln for bisque firing, then take it out and evenly apply the reserved glaze slurry on the ceramic green body to obtain a ceramic green body with glaze applied; Step 3: After glazing the green body, place it in the kiln and gradually increase the temperature in the kiln in stages for firing. After firing, allow the temperature in the kiln to cool naturally to room temperature.

[0013] Preferably, the stepwise increase of the kiln temperature includes three stages. The first stage takes 2 hours, and the temperature in the kiln gradually rises to 300°C. The second stage takes 4 hours, and the temperature in the kiln gradually rises to 800°C. The third stage takes 7 hours, and the temperature in the kiln gradually rises to 1200°C.

[0014] Preferably, in step 1, the mixture is stirred with a magnet bar, and the iron element in the mixture is removed at least twice.

[0015] The health-preserving and antibacterial ceramic glaze prepared by the present invention and the preparation method thereof effectively improve the negative ion release amount of the tourmaline powder by air flow pulverizing the tourmaline powder. After the ceramic product is glazed and calcined, it still has a good negative ion release function, giving the ceramic product good functions. In addition, by compounding and modifying medical stone, sepiolite and graphene, the medical stone has good adsorption capacity, and then is mixed with the basic glaze, tourmaline powder and antibacterial peptides, so that the negative ions released by the tourmaline can enhance the effects of other antibacterial substances in the air. Compared with conventional glaze powder, it can load more antibacterial substances and has excellent antibacterial effect.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The sepiolite added in the present invention has extremely high heat resistance. The glaze surface formed by high-temperature sintering has antibacterial components decomposed at high temperature and distributed in the entire internal micropores of the modified medical stone in a dispersed state, which can form countless effective antibacterial points of the antibacterial agent, not only avoiding excessive loss of the antibacterial agent during high-temperature firing, but also making the glaze surface denser and smoother after high-temperature firing, thereby extending durability. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. 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.

[0018] The present invention of this embodiment provides a health-preserving antibacterial ceramic glaze, comprising the following raw materials: a basic glaze, an antibacterial additive, a water softener, and the balance is water, wherein the basic glaze comprises potassium feldspar, quartz sand, calcite, black jade, diatomaceous earth, kaolin, nano titanium dioxide, boric acid, rubidium, and niobium pentoxide, and the antibacterial additive comprises tourmaline, antibacterial peptide, and modified medical stone; The specific formula includes the following raw materials: 70-80 parts of basic glaze, 6-8 parts of antibacterial additives, 2-3 parts of water softeners, and the balance is water. The basic glaze includes 18-26 parts of potassium feldspar, 12-15 parts of quartz sand, 5-10 parts of calcite, 3-5 parts of black jade, 10-18 parts of diatomaceous earth, 3-5 parts of kaolin, 4-8 parts of nano titanium dioxide, 2-5 parts of boric acid, 1-2 parts of rubidium, and 1-3 parts of niobium pentoxide. The antibacterial additive includes 20-30 parts of tourmaline, 8-10 parts of antibacterial peptides, and 30-40 parts of modified medical stone.

[0019] The health-preserving and antibacterial ceramic glaze of this embodiment comprises the following raw materials: 75 parts of basic glaze, 7 parts of antibacterial additives, 2.5 parts of water softener, and the balance is water. The basic glaze includes 20 parts of potassium feldspar, 13 parts of quartz sand, 8 parts of calcite, 4 parts of black jade, 15 parts of diatomaceous earth, 4 parts of kaolin, 6 parts of nano titanium dioxide, 3 parts of boric acid, 1.5 parts of rubidium, and 2 parts of niobium pentoxide. The antibacterial additives include 25 parts of tourmaline, 9 parts of antibacterial peptides, and 35 parts of modified medical stone.

[0020] The preparation method of the modified medical stone of the present embodiment comprises the following steps: S1. Place medical stone, sepiolite and graphene in a grinder and grind them sufficiently until the materials can pass through a 500-800 mesh sieve to obtain a composite material; S2, adding the composite ingredients to 40-60 parts by weight of sodium alginate solution, dispersing evenly, then heating to 75-90° C., and performing ultrasonic treatment; S3, adding 0.2-0.4 parts by weight of silane coupling agent, stirring at a speed of 400-500 r / min for 4-6 hours, filtering and drying to obtain modified medical stone.

[0021] In S1 of this embodiment, the ratio of the composite material to water is 1:0.7-0.8, and the grinding time is 18-20 hours.

[0022] In S2 of this embodiment, the ultrasonic treatment power is 600-700 W, and the ultrasonic treatment time is 50-60 min.

[0023] The silane coupling agent in S3 of this embodiment is silane coupling agent KH172.

[0024] The water softener of this embodiment is one or more of disodium hydrogen phosphate, sodium carbonate, trisodium phosphate, sodium tripolyphosphate, sodium hexametaphosphate, sodium nitrilotriacetate, sodium carboxymethyl succinate, and sodium silicate.

[0025] A method for preparing a health-preserving and antibacterial ceramic glaze according to the present embodiment comprises the following steps: Step 1: add the basic glaze, tourmaline and antimicrobial peptide into a ball mill, then add water and ball-mill to 200-300 mesh, sieve, dry and air-grind to obtain fine powder, then add water and mix with modified medical stone, stir for 70-80 minutes, remove iron in the mixture to obtain a standby glaze slurry; Step 2: Place the formed ceramic green body into a kiln for bisque firing, then take it out and evenly apply the reserved glaze slurry on the ceramic green body to obtain a ceramic green body with glaze applied; Step 3: After glazing the green body, place it in the kiln and gradually increase the temperature in the kiln in stages for firing. After firing, allow the temperature in the kiln to cool naturally to room temperature.

[0026] The stepwise increase of the kiln temperature in this embodiment includes three stages. The first stage takes 2 hours, and the temperature in the kiln gradually rises to 300°C. The second stage takes 4 hours, and the temperature in the kiln gradually rises to 800°C. The third stage takes 7 hours, and the temperature in the kiln gradually rises to 1200°C.

[0027] In step 1 of this embodiment, the mixture is stirred with a magnet bar, and the iron element in the mixture is removed at least twice. Example 1

[0028] The present invention of this embodiment provides a health-preserving antibacterial ceramic glaze, comprising the following raw materials: a basic glaze, an antibacterial additive, a water softener, and the balance is water, wherein the basic glaze comprises potassium feldspar, quartz sand, calcite, black jade, diatomaceous earth, kaolin, nano titanium dioxide, boric acid, rubidium, and niobium pentoxide, and the antibacterial additive comprises tourmaline, antibacterial peptide, and modified medical stone; Its specific formula includes the following raw materials: 70 parts of basic glaze, 6 parts of antibacterial additives, 2 parts of water softener, and the balance is water. The basic glaze includes 18 parts of potassium feldspar, 12 parts of quartz sand, 5 parts of calcite, 3 parts of black jade, 10 parts of diatomaceous earth, 3 parts of kaolin, 4 parts of nano titanium dioxide, 2 parts of boric acid, 1 part of rubidium, and 1 part of niobium pentoxide. The antibacterial additive includes 20 parts of tourmaline, 8 parts of antibacterial peptides, and 30 parts of modified medical stone.

[0029] The preparation method of the modified medical stone of the present embodiment comprises the following steps: S1. Place medical stone, sepiolite and graphene in a grinder and grind them sufficiently until the materials can pass through a 500-mesh sieve to obtain a composite material; S2, adding the composite ingredients to 40 parts by weight of sodium alginate solution, dispersing them evenly, then heating them to 75° C. and performing ultrasonic treatment; S3, adding 0.2 parts by weight of silane coupling agent, stirring at a speed of 400 r / min for 4 hours, filtering and drying to obtain modified medical stone.

[0030] In S1 of this embodiment, the ratio of the composite material to water is 1:0.7, and the grinding time is 18 hours.

[0031] In S2 of this embodiment, the ultrasonic treatment power is 600 W and the ultrasonic treatment time is 50 min.

[0032] The silane coupling agent in S3 of this embodiment is silane coupling agent KH172.

[0033] The water softener in this embodiment is sodium carboxymethyl succinate.

[0034] A method for preparing a health-preserving and antibacterial ceramic glaze according to the present embodiment comprises the following steps: Step 1: add the basic glaze, tourmaline and antimicrobial peptide into a ball mill, then add water and ball-mill to 200 mesh, sieve, dry and air-grind to obtain fine powder, then add water and mix with modified medical stone, stir for 70 minutes, remove iron in the mixture to obtain a standby glaze slurry; Step 2: Place the formed ceramic green body into a kiln for bisque firing, then take it out and evenly apply the reserved glaze slurry on the ceramic green body to obtain a ceramic green body with glaze applied; Step 3: After glazing the green body, place it in the kiln and gradually increase the temperature in the kiln in stages for firing. After firing, allow the temperature in the kiln to cool naturally to room temperature.

[0035] The stepwise increase of the kiln temperature in this embodiment includes three stages. The first stage takes 2 hours, and the temperature in the kiln gradually rises to 300°C. The second stage takes 4 hours, and the temperature in the kiln gradually rises to 800°C. The third stage takes 7 hours, and the temperature in the kiln gradually rises to 1200°C.

[0036] In step 1 of this embodiment, the mixture is stirred with a magnet bar, and the iron element in the mixture is removed at least twice. The iron filings in the mixture are adsorbed to the surface of the magnet bar, thereby achieving the purpose of removing the iron element in the glaze slurry and reducing the defects of the glaze layer after firing. Example 2

[0037] The present invention of this embodiment provides a health-preserving antibacterial ceramic glaze, comprising the following raw materials: a basic glaze, an antibacterial additive, a water softener, and the balance is water, wherein the basic glaze comprises potassium feldspar, quartz sand, calcite, black jade, diatomaceous earth, kaolin, nano titanium dioxide, boric acid, rubidium, and niobium pentoxide, and the antibacterial additive comprises tourmaline, antibacterial peptide, and modified medical stone; Its specific formula includes the following raw materials: 75 parts of basic glaze, 7 parts of antibacterial additives, 2.5 parts of water softener, and the balance is water. The basic glaze includes 20 parts of potassium feldspar, 13 parts of quartz sand, 8 parts of calcite, 4 parts of black jade, 15 parts of diatomaceous earth, 4 parts of kaolin, 6 parts of nano titanium dioxide, 3 parts of boric acid, 1.5 parts of rubidium, and 2 parts of niobium pentoxide. The antibacterial additive includes 25 parts of tourmaline, 9 parts of antibacterial peptides, and 35 parts of modified medical stone.

[0038] The preparation method of the modified medical stone of the present embodiment comprises the following steps: S1. Place medical stone, sepiolite and graphene in a grinder and grind them sufficiently until the materials can pass through a 600-mesh sieve to obtain a composite material; S2, adding the composite ingredients to 50 parts by weight of sodium alginate solution, dispersing them evenly, then heating them to 80° C., and performing ultrasonic treatment; S3, adding 0.3 parts by weight of silane coupling agent, stirring at a speed of 450 r / min for 5 hours, filtering and drying to obtain modified medical stone.

[0039] In S1 of this embodiment, the ratio of the composite material to water is 1:0.75, and the grinding time is 19 hours.

[0040] In S2 of this embodiment, the ultrasonic treatment power is 650 W and the ultrasonic treatment time is 55 min.

[0041] The silane coupling agent in S3 of this embodiment is silane coupling agent KH172.

[0042] The water softener in this embodiment is disodium hydrogen phosphate.

[0043] A method for preparing a health-preserving and antibacterial ceramic glaze according to the present embodiment comprises the following steps: Step 1: add the basic glaze, tourmaline and antimicrobial peptide into a ball mill, then add water and ball-mill to 250 mesh, sieve, dry and air-grind to obtain fine powder, then add water and mix with modified medical stone, stir for 75 minutes, remove iron in the mixture to obtain a standby glaze slurry; Step 2: Place the formed ceramic green body into a kiln for bisque firing, then take it out and evenly apply the reserved glaze slurry on the ceramic green body to obtain a ceramic green body with glaze applied; Step 3: After glazing the green body, place it in the kiln and gradually increase the temperature in the kiln in stages for firing. After firing, allow the temperature in the kiln to cool naturally to room temperature.

[0044] The stepwise increase of the kiln temperature in this embodiment includes three stages. The first stage takes 2 hours, and the temperature in the kiln gradually rises to 300°C. The second stage takes 4 hours, and the temperature in the kiln gradually rises to 800°C. The third stage takes 7 hours, and the temperature in the kiln gradually rises to 1200°C.

[0045] In step 1 of this embodiment, the mixture is stirred with a magnet bar, and the iron element in the mixture is removed at least twice. Example 3

[0046] The present invention of this embodiment provides a health-preserving antibacterial ceramic glaze, comprising the following raw materials: a basic glaze, an antibacterial additive, a water softener, and the balance is water, wherein the basic glaze comprises potassium feldspar, quartz sand, calcite, black jade, diatomaceous earth, kaolin, nano titanium dioxide, boric acid, rubidium, and niobium pentoxide, and the antibacterial additive comprises tourmaline, antibacterial peptide, and modified medical stone; Its specific formula includes the following raw materials: 80 parts of basic glaze, 8 parts of antibacterial additives, 3 parts of water softeners, and the balance is water. The basic glaze includes 26 parts of potassium feldspar, 15 parts of quartz sand, 10 parts of calcite, 5 parts of black jade, 18 parts of diatomaceous earth, 5 parts of kaolin, 8 parts of nano titanium dioxide, 5 parts of boric acid, 2 parts of rubidium, and 3 parts of niobium pentoxide. The antibacterial additive includes 30 parts of tourmaline, 10 parts of antibacterial peptides, and 40 parts of modified medical stone.

[0047] The preparation method of the modified medical stone of the present embodiment comprises the following steps: S1. Place medical stone, sepiolite and graphene in a grinder and grind them sufficiently until the materials can pass through a sieve of 800 meshes to obtain a composite material; S2, adding the composite ingredients to 60 parts by weight of sodium alginate solution, dispersing them evenly, then heating them to 90° C. and performing ultrasonic treatment; S3, adding 0.4 parts by weight of silane coupling agent, stirring at a speed of 500 r / min for 6 hours, filtering and drying to obtain modified medical stone.

[0048] In S1 of this embodiment, the ratio of the composite material to water is 1:0.8, and the grinding time is 20 hours.

[0049] In S2 of this embodiment, the ultrasonic treatment power is 700 W and the ultrasonic treatment time is 60 min.

[0050] The silane coupling agent in S3 of this embodiment is silane coupling agent KH172.

[0051] The water softener in this embodiment is trisodium phosphate.

[0052] A method for preparing a health-preserving and antibacterial ceramic glaze according to the present embodiment comprises the following steps: Step 1: add the basic glaze, tourmaline and antimicrobial peptide into a ball mill, then add water and ball-mill to 300 mesh, sieve, dry and air-grind to obtain fine powder, then add water and mix with modified medical stone, stir for 80 minutes, remove iron in the mixture to obtain a standby glaze slurry; Step 2: Place the formed ceramic green body into a kiln for bisque firing, then take it out and evenly apply the reserved glaze slurry on the ceramic green body to obtain a ceramic green body with glaze applied; Step 3: After glazing the green body, place it in the kiln and gradually increase the temperature in the kiln in stages for firing. After firing, allow the temperature in the kiln to cool naturally to room temperature.

[0053] The stepwise increase of the kiln temperature in this embodiment includes three stages. The first stage takes 2 hours, and the temperature in the kiln gradually rises to 300°C. The second stage takes 4 hours, and the temperature in the kiln gradually rises to 800°C. The third stage takes 7 hours, and the temperature in the kiln gradually rises to 1200°C.

[0054] In step 1 of this embodiment, the mixture is stirred with a magnet bar, and the iron element in the mixture is removed at least twice.

[0055] Comparative Example 1. The difference from Example 3 is that a common recipe is used to prepare the ceramic glaze.

[0056] The products of Examples 1-3 and Comparative Example 1 were subjected to performance tests; Eight ceramic cup samples were made and divided into two groups of four each. Each group corresponded to Examples 1-3 and Comparative Example 1 and were numbered A / B / C / D. Finally, the antibacterial performance and antibacterial durability of the ceramic cup samples in groups A / B / C / D were tested with reference to JC / T897-2014. The results are shown in the following table.

[0057] It can be seen from Examples 1-3 that the health-preserving and antibacterial ceramic glaze prepared by the present invention and the preparation method thereof can still have a good negative ion release function after the ceramic products are glazed and calcined, giving the ceramic products good functions, and by compounding and modifying medical stone, sepiolite and graphene, the medical stone has good adsorption properties, and then is mixed with the basic glaze, tourmaline powder and antibacterial peptides, so that the negative ions released by the tourmaline can enhance the effects of other antibacterial substances in the air. Compared with conventional glaze powders, it can load more antibacterial substances and has excellent antibacterial effects.

[0058] It can be seen from Example 3 and Comparative Example 1 that the ceramic glaze prepared using the common formula has poor antibacterial properties, which will cause harm to human health in the long run and is difficult to meet actual needs.

[0059] The innovation of the present invention is: The invention effectively improves the negative ion release amount of the tourmaline powder by air flow pulverizing the tourmaline powder. After the ceramic product is glazed and calcined, it still has a good negative ion release function, giving the ceramic product good functions. The medical stone, sepiolite and graphene are compounded and modified to make the medical stone have good adsorption. Then the medical stone is mixed with the basic glaze, tourmaline powder and antimicrobial peptides, so that the negative ions released by the tourmaline can enhance the effects of other antimicrobial substances in the air. Compared with conventional glaze powder, more antimicrobial substances can be loaded, and the antimicrobial effect is excellent. The added sepiolite has extremely high heat resistance. In this way, the glaze surface formed by high-temperature sintering has antimicrobial components decomposed at high temperature in a dispersed state and distributed in the entire micropores inside the modified medical stone, so that the antimicrobial agent can form countless effective antimicrobial points, which not only avoids excessive loss of the antimicrobial agent during the high-temperature firing process, but also makes the glaze surface denser and smoother after the high-temperature firing, and prolongs the durability.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A health-preserving and antibacterial ceramic glaze, characterized in that: The invention comprises the following raw materials: basic glaze, antibacterial additive, water softener, and the balance is water, wherein the basic glaze comprises potassium feldspar, quartz sand, calcite, black jade, diatomaceous earth, kaolin, nano titanium dioxide, boric acid, rubidium, and niobium pentoxide, and the antibacterial additive comprises tourmaline, antibacterial peptide, and modified medical stone; The specific formula includes the following raw materials (by mass): 70-80 parts of basic glaze, 6-8 parts of antibacterial additives, 2-3 parts of water softeners, and the balance is water. The basic glaze includes 18-26 parts of potassium feldspar, 12-15 parts of quartz sand, 5-10 parts of calcite, 3-5 parts of black jade, 10-18 parts of diatomaceous earth, 3-5 parts of kaolin, 4-8 parts of nano titanium dioxide, 2-5 parts of boric acid, 1-2 parts of rubidium, and 1-3 parts of niobium pentoxide. The antibacterial additive includes 20-30 parts of tourmaline, 8-10 parts of antibacterial peptides, and 30-40 parts of modified medical stone.

2. The health-preserving and antibacterial ceramic glaze according to claim 1, characterized in that: Including the following ingredients: The invention discloses a basic glaze comprising 75 parts of basic glaze, 7 parts of antibacterial additive, 2.5 parts of water softener and the balance of water. The basic glaze comprises 20 parts of potassium feldspar, 13 parts of quartz sand, 8 parts of calcite, 4 parts of black jade stone, 15 parts of diatomaceous earth, 4 parts of kaolin, 6 parts of nano titanium dioxide, 3 parts of boric acid, 1.5 parts of rubidium and 2 parts of niobium pentoxide. The antibacterial additive comprises 25 parts of tourmaline, 9 parts of antibacterial peptide and 35 parts of modified medical stone.

3. The health-preserving and antibacterial ceramic glaze according to claim 1, characterized in that: The preparation method of the modified medical stone comprises the following steps: S1. Place medical stone, sepiolite and graphene in a grinder and grind them sufficiently until the materials can pass through a 500-800 mesh sieve to obtain a composite material; S2, adding the composite ingredients to 40-60 parts by weight of sodium alginate solution, dispersing evenly, then heating to 75-90° C., and performing ultrasonic treatment; S3, adding 0.2-0.4 parts by weight of silane coupling agent, stirring at a speed of 400-500 r / min for 4-6 hours, filtering and drying to obtain modified medical stone.

4. The health-preserving and antibacterial ceramic glaze according to claim 3, characterized in that: The ratio of the composite material to water in S1 is 1:0.7-0.8, and the grinding time is 18-20 hours.

5. The health-preserving and antibacterial ceramic glaze according to claim 3, characterized in that: The ultrasonic treatment power in S2 is 600-700W, and the ultrasonic treatment time is 50-60min.

6. The health-preserving and antibacterial ceramic glaze according to claim 3, characterized in that: The silane coupling agent in S3 is silane coupling agent KH172.

7. The health-preserving and antibacterial ceramic glaze according to claim 1, characterized in that: The water softener is one or more of disodium hydrogen phosphate, sodium carbonate, trisodium phosphate, sodium tripolyphosphate, sodium hexametaphosphate, sodium nitrilotriacetate, sodium carboxymethyl succinate, and sodium silicate.

8. A method for preparing the health-preserving and antibacterial ceramic glaze according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: add the basic glaze, tourmaline and antimicrobial peptide into a ball mill, then add water and ball-mill to 200-300 mesh, sieve, dry and air-grind to obtain fine powder, then add water and mix with modified medical stone, stir for 70-80 minutes, remove iron in the mixture to obtain a standby glaze slurry; Step 2: Place the formed ceramic green body into a kiln for bisque firing, then take it out and evenly apply the reserved glaze slurry on the ceramic green body to obtain a ceramic green body with glaze applied; Step 3: After glazing the green body, place it in the kiln and gradually increase the temperature in the kiln in stages for firing. After firing, allow the temperature in the kiln to cool naturally to room temperature.

9. The method for preparing a health-preserving and antibacterial ceramic glaze according to claim 8, characterized in that: The stepwise increase of the kiln temperature includes three stages. The first stage takes 2 hours, and the kiln temperature gradually rises to 300°C. The second stage takes 4 hours, and the kiln temperature gradually rises to 800°C. The third stage takes 7 hours, and the kiln temperature gradually rises to 1200°C.

10. The method for preparing a health-preserving and antibacterial ceramic glaze according to claim 8, characterized in that: In the step 1, the mixture is stirred with a magnet bar, and the iron element in the mixture is removed at least twice.

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