Glaze with self-cleaning function for hot bending forming rock plate and preparation method of glaze
By using raw materials such as kaolin, wollastonite, and combined with the synergistic effect of modified tremolite and magnesium oxide agent, the problem of poor self-cleaning performance of glaze for thermally bent rock slabs is solved, and the self-cleaning stability and use efficiency of the product are significantly improved.
Patent Information
- Application Number
- CN202411925465.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-05-02
AI Technical Summary
The glaze used for existing hot-bending rock slabs has poor self-cleaning performance, and the product has poor self-cleaning stability under scratch, wear resistance and corrosion conditions, which limits the product's use efficiency.
The glaze for hot-bending rock slabs made of raw materials such as kaolin, wollastonite, diopside, and optimizes the self-cleaning performance of the glaze through the coordination of modified tremolite and magnesium oxide agent. Modified timutlite is made into a modified liquid through raw materials such as silane coupling agent KH550 and nano-silica, and the timutlite is modified; the magnesium oxide is made into a ball milling liquid through raw materials such as tetrabutyl titanate and urea, and is subjected to a ball milling treatment.
It significantly improves the self-cleaning performance and stability of the glaze. The product shows significant self-cleaning stability under scratch, wear resistance and corrosion conditions, and improves the efficiency of the product.
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Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of glazes for rock slabs, and in particular to a glaze for hot-bending rock slabs with a self-cleaning effect and a preparation method thereof. Background Art
[0002] Common processes for making ceramic tiles (common steps for blanks): blanks, ball milling, powder spraying, molding, glazing, printing, firing (water absorption <0.03, complete vitrification), and sorting. Plate thickness >14mm. Secondary hot bending: Place the rock plate made in step (1) on a high-temperature refractory plate, and place it in a hot bending furnace for up and down heating. The rock plate falls onto the high-temperature refractory plate by its own weight, and then cools and molds. After the secondary hot bending, the rock plate has better resistance to deformation, toughness, and ductility, and can be customized to different sizes and basin shapes. The product qualification rate can reach more than 98%.
[0003] The existing glaze used in hot-bent rock slabs has poor self-cleaning performance. At the same time, the self-cleaning stability of the product is poor under conditions of scratching, wear resistance and corrosion, which limits the use efficiency of the product. Based on this, the present invention further improves it. Summary of the invention
[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a glaze for hot-bent rock slabs with self-cleaning effect and a preparation method thereof, so as to solve the problems raised in the above-mentioned background technology.
[0005] The present invention solves the technical problem by adopting the following technical solution: The present invention provides a glaze for hot-bending rock slabs with a self-cleaning effect, comprising the following raw materials in parts by weight: 30-40 parts of kaolin, 15-25 parts of wollastonite, 10-20 parts of diopside, 10-20 parts of bentonite, 5-10 parts of mullite, 5-8 parts of modified tremolite, 3-5 parts of magnesium oxide, and 2-3 parts of sodium tripolyphosphate.
[0006] Preferably, the glaze for rock slabs comprises the following raw materials in parts by weight: 35 parts of kaolin, 20 parts of wollastonite, 15 parts of diopside, 15 parts of bentonite, 7.5 parts of mullite, 6.5 parts of modified tremolite, 4 parts of magnesium oxide, and 2.5 parts of sodium tripolyphosphate.
[0007] Preferably, the modification method of the modified tremolite is: S1: adding 1-3 parts of silane coupling agent KH550, 2-4 parts of nano silicon dioxide and 3-5 parts of calcium stearate to 6-8 parts of citric acid solution to obtain a first modified solution; S2: adding 3-5 parts of talcum powder and 1-2 parts of nano-silica sol to 4-7 parts of lanthanum chloride solution and stirring thoroughly to obtain a second modified solution; S3: mixing the first modifying liquid and the second modifying liquid in a weight ratio of 5:3 to obtain a modifying liquid; immersing the tremolite in the modifying liquid which is 3-5 times the total amount of the tremolite and stirring for modification treatment; after the stirring is completed, filtering and drying are performed to obtain modified tremolite.
[0008] Preferably, the mass fraction of the citric acid solution is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%.
[0009] Preferably, the stirring temperature of the stirring modification treatment is 50-55° C., the stirring time is 1-2 hours, and the stirring speed is 450-500 r / min.
[0010] Preferably, the preparation method of the magnesium oxide agent is: S11: 2-4 parts of tetrabutyl titanate, 1-3 parts of urea, 3-5 parts of chitosan solution and 2-3 parts of cordierite are stirred to obtain a ball milling solution; S12: magnesium oxide and ball milling liquid are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a magnesium oxide agent.
[0011] Preferably, the mass fraction of the chitosan solution is 2-5%.
[0012] Preferably, the mixing and ball milling treatment is carried out at a ball milling speed of 1500 r / min and the ball milling is carried out for 2 hours.
[0013] The present invention also provides a method for preparing a glaze for hot-bent rock slabs with a self-cleaning effect, comprising the following steps: mixing the raw materials thoroughly, and then ball-milling them at 1500 r / min for 2 hours, and obtaining the glaze after the ball milling is completed.
[0014] Compared with the prior art, the present invention has the following beneficial effects: The glaze for hot-bending rock slabs of the present invention is made of raw materials such as kaolin, wollastonite, and diopside, and is coordinated with modified tremolite and magnesium oxide to optimize the self-cleaning performance of the glaze of the product system. At the same time, the self-cleaning stability of the product is remarkable under the conditions of scratching, wear resistance and corrosion. The modified tremolite is prepared by combining silane coupling agent KH550, nano-silicon dioxide and other raw materials to prepare a first modified liquid. At the same time, talcum powder and nano-silica sol raw materials are used to prepare a second modified liquid. The first modified liquid and the second modified liquid are blended to prepare a modified liquid. A specific modified liquid is used to improve the tremolite, optimize the self-cleaning property of the system, and improve the performance stability of the product. The magnesium oxide agent is used to process magnesium oxide through ball milling liquid. The ball-milled improved magnesium oxide agent is coordinated with the modified tremolite, and the performance effect of the product is further improved. DETAILED DESCRIPTION
[0015] 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.
[0016] The glaze for hot-bending rock panels with a self-cleaning effect of this embodiment includes the following raw materials in parts by weight: 30-40 parts of kaolin, 15-25 parts of wollastonite, 10-20 parts of diopside, 10-20 parts of bentonite, 5-10 parts of mullite, 5-8 parts of modified tremolite, 3-5 parts of magnesium oxide, and 2-3 parts of sodium tripolyphosphate.
[0017] The glaze for the rock plate of this embodiment includes the following raw materials in parts by weight: 35 parts of kaolin, 20 parts of wollastonite, 15 parts of diopside, 15 parts of bentonite, 7.5 parts of mullite, 6.5 parts of modified tremolite, 4 parts of magnesium oxide, and 2.5 parts of sodium tripolyphosphate.
[0018] The modification method of the modified tremolite of the present embodiment is: S1: adding 1-3 parts of silane coupling agent KH550, 2-4 parts of nano silicon dioxide and 3-5 parts of calcium stearate to 6-8 parts of citric acid solution to obtain a first modified solution; S2: adding 3-5 parts of talcum powder and 1-2 parts of nano-silica sol to 4-7 parts of lanthanum chloride solution and stirring thoroughly to obtain a second modified solution; S3: mixing the first modifying liquid and the second modifying liquid in a weight ratio of 5:3 to obtain a modifying liquid; immersing the tremolite in the modifying liquid which is 3-5 times the total amount of the tremolite and stirring for modification treatment; after the stirring is completed, filtering and drying are performed to obtain modified tremolite.
[0019] The mass fraction of the citric acid solution in this embodiment is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%.
[0020] The stirring temperature of the stirring modification treatment in this embodiment is 50-55° C., stirring is 1-2 hours, and the stirring speed is 450-500 r / min.
[0021] The preparation method of the magnesium oxide agent of this embodiment is: S11: 2-4 parts of tetrabutyl titanate, 1-3 parts of urea, 3-5 parts of chitosan solution and 2-3 parts of cordierite are stirred to obtain a ball milling solution; S12: magnesium oxide and ball milling liquid are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a magnesium oxide agent.
[0022] The mass fraction of the chitosan solution in this embodiment is 2-5%.
[0023] The mixing and ball milling process in this embodiment was carried out at a ball milling speed of 1500 r / min and the ball milling was carried out for 2 h.
[0024] The method for preparing a glaze for hot-bent rock slabs with a self-cleaning effect in this embodiment comprises the following steps: mixing the raw materials thoroughly, and then ball-milling them at 1500 r / min for 2 hours, and obtaining the glaze after the ball-milling is completed.
[0025] Example 1. The glaze for hot-bending rock panels with a self-cleaning effect of this embodiment includes the following raw materials in parts by weight: 30 parts of kaolin, 15 parts of wollastonite, 10 parts of diopside, 10 parts of bentonite, 5 parts of mullite, 5 parts of modified tremolite, 3 parts of magnesium oxide, and 2 parts of sodium tripolyphosphate.
[0026] The modification method of the modified tremolite of the present embodiment is: S1: adding 1 part of silane coupling agent KH550, 2 parts of nano silicon dioxide and 3 parts of calcium stearate to 6 parts of citric acid solution to obtain a first modified solution; S2: adding 3 parts of talcum powder and 1 part of nano-silica sol to 4 parts of lanthanum chloride solution and stirring thoroughly to obtain a second modified solution; S3: mixing the first modifying liquid and the second modifying liquid in a weight ratio of 5:3 to obtain a modifying liquid; immersing the tremolite in the modifying liquid in an amount 3 times the total amount of the tremolite and stirring for modification treatment; after the stirring is completed, filtering and drying are performed to obtain modified tremolite.
[0027] The mass fraction of the citric acid solution in this embodiment is 5%; the mass fraction of the lanthanum chloride solution is 2-5%.
[0028] The stirring temperature of the stirring modification treatment in this embodiment is 50° C., stirring for 1 hour, and the stirring speed is 450 r / min.
[0029] The preparation method of the magnesium oxide agent of this embodiment is: S11: 2 parts of tetrabutyl titanate, 1 part of urea, 3 parts of chitosan solution and 2 parts of cordierite are stirred to obtain a ball milling solution; S12: magnesium oxide and ball milling liquid are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a magnesium oxide agent.
[0030] The mass fraction of the chitosan solution in this embodiment is 2%.
[0031] The mixing and ball milling process in this embodiment was carried out at a ball milling speed of 1500 r / min and the ball milling was carried out for 2 h.
[0032] The method for preparing a glaze for hot-bent rock slabs with a self-cleaning effect in this embodiment comprises the following steps: mixing the raw materials thoroughly, and then ball-milling them at 1500 r / min for 2 hours, and obtaining the glaze after the ball-milling is completed.
[0033] Example 2. The glaze for hot-bending rock panels with a self-cleaning effect of this embodiment includes the following raw materials in parts by weight: 40 parts of kaolin, 25 parts of wollastonite, 20 parts of diopside, 20 parts of bentonite, 10 parts of mullite, 8 parts of modified tremolite, 5 parts of magnesium oxide, and 3 parts of sodium tripolyphosphate.
[0034] The modification method of the modified tremolite of the present embodiment is: S1: adding 3 parts of silane coupling agent KH550, 4 parts of nano silicon dioxide and 5 parts of calcium stearate to 8 parts of citric acid solution to obtain a first modified solution; S2: adding 5 parts of talcum powder and 2 parts of nano-silica sol to 7 parts of lanthanum chloride solution and stirring thoroughly to obtain a second modified solution; S3: mixing the first modifying liquid and the second modifying liquid in a weight ratio of 5:3 to obtain a modifying liquid; immersing the tremolite in the modifying liquid in an amount of 5 times the total amount of the tremolite and stirring for modification treatment; after the stirring is completed, filtering and drying are performed to obtain modified tremolite.
[0035] The mass fraction of the citric acid solution in this embodiment is 8%; the mass fraction of the lanthanum chloride solution is 5%.
[0036] The stirring temperature of the stirring modification treatment in this embodiment is 55° C., stirring for 2 hours, and the stirring speed is 500 r / min.
[0037] The preparation method of the magnesium oxide agent of this embodiment is: S11: 4 parts of tetrabutyl titanate, 3 parts of urea, 5 parts of chitosan solution and 3 parts of cordierite are stirred to obtain a ball milling solution; S12: magnesium oxide and ball milling liquid are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a magnesium oxide agent.
[0038] The mass fraction of the chitosan solution in this embodiment is 5%.
[0039] The mixing and ball milling process in this embodiment was carried out at a ball milling speed of 1500 r / min and the ball milling was carried out for 2 h.
[0040] The method for preparing a glaze for hot-bent rock slabs with a self-cleaning effect in this embodiment comprises the following steps: mixing the raw materials thoroughly, and then ball-milling them at 1500 r / min for 2 hours, and obtaining the glaze after the ball-milling is completed.
[0041] Example 3. The glaze for hot-bending rock panels with a self-cleaning effect of this embodiment includes the following raw materials in parts by weight: 35 parts of kaolin, 20 parts of wollastonite, 15 parts of diopside, 15 parts of bentonite, 7.5 parts of mullite, 6.5 parts of modified tremolite, 4 parts of magnesium oxide, and 2.5 parts of sodium tripolyphosphate.
[0042] The modification method of the modified tremolite of the present embodiment is: S1: adding 2 parts of silane coupling agent KH550, 3 parts of nano silicon dioxide and 4 parts of calcium stearate to 7 parts of citric acid solution to obtain a first modified solution; S2: adding 4 parts of talcum powder and 1.5 parts of nano-silica sol to 5.5 parts of lanthanum chloride solution and stirring thoroughly to obtain a second modified solution; S3: mixing the first modifying liquid and the second modifying liquid in a weight ratio of 5:3 to obtain a modifying liquid; immersing the tremolite in the modifying liquid which is 4 times the total amount of the tremolite and stirring for modification treatment; after the stirring is completed, filtering and drying are performed to obtain modified tremolite.
[0043] The mass fraction of the citric acid solution in this embodiment is 6.5%; the mass fraction of the lanthanum chloride solution is 3.5%.
[0044] The stirring temperature of the stirring modification treatment in this embodiment is 52° C., the stirring time is 1.5 h, and the stirring speed is 470 r / min.
[0045] The preparation method of the magnesium oxide agent of this embodiment is: S11: 3 parts of tetrabutyl titanate, 2 parts of urea, 4 parts of chitosan solution and 2.5 parts of cordierite are stirred to obtain a ball milling solution; S12: magnesium oxide and ball milling liquid are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a magnesium oxide agent.
[0046] The mass fraction of the chitosan solution in this embodiment is 3.5%.
[0047] The mixing and ball milling process in this embodiment was carried out at a ball milling speed of 1500 r / min and the ball milling was carried out for 2 h.
[0048] The method for preparing a glaze for hot-bent rock slabs with a self-cleaning effect in this embodiment comprises the following steps: mixing the raw materials thoroughly, and then ball-milling them at 1500 r / min for 2 hours, and obtaining the glaze after the ball-milling is completed.
[0049] Comparative Example 1. The difference from Example 3 is that no modified tremolite is added.
[0050] Comparative Example 2. The difference from Example 3 is that no modifying liquid is added to the modified tremolite.
[0051] Comparative Example 3. The difference from Example 3 is that the first modifying liquid is not added to the modifying liquid.
[0052] Comparative Example 4. The difference from Example 3 is that no second modifying liquid is added to the modifying liquid.
[0053] Comparative Example 5. The difference from Example 3 is that no magnesium oxide agent was added.
[0054] Comparative Example 6. The difference from Example 3 is that the magnesium oxide agent is not treated with ball milling liquid.
[0055] The surfaces of the products of Examples 1-3 and Comparative Examples 1-6 were coated with oil, and then scrubbed by applying a wiping force to test the wiping force. The performance test was as follows: 10N force was used to scrape 10 times, and then a speed of 1000r / min was used for ball milling for 1h, and then placed under 5% hydrochloric acid mist for 24h. The above was one cycle, and the cycle test was repeated 10 times to test the scratch, wear resistance and corrosion performance of the product:
[0056] It can be seen from comparative examples 1-6 and embodiment 3 that the product of embodiment 3 has a significant self-cleaning effect, and at the same time, the product has significant effects on scratch resistance, wear resistance and corrosion stability; without adding modified tremolite or magnesium oxide, the product performance effect is significantly deteriorated, and the two are used in combination to achieve synergistic effects, and the product performance effect is significant; When no modifying liquid is added to the modified tremolite, the first modifying liquid is not added to the modifying liquid, the second modifying liquid is not added to the modifying liquid, and the magnesium oxide agent is not treated with ball milling liquid, the performance of the product tends to deteriorate. Only when the modified tremolite improved by the specific modifying liquid of the present invention is combined with a specific magnesium oxide agent, the product performance effect is most significant.
[0057] 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.
[0058] 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 glaze for hot-bending rock slabs with self-cleaning effect, characterized in that: It includes the following raw materials in parts by weight: 30-40 parts of kaolin, 15-25 parts of wollastonite, 10-20 parts of diopside, 10-20 parts of bentonite, 5-10 parts of mullite, 5-8 parts of modified tremolite, 3-5 parts of magnesium oxide, and 2-3 parts of sodium tripolyphosphate.
2. The glaze for hot-bending rock slabs with self-cleaning function according to claim 1, characterized in that: The glaze for rock slabs comprises the following raw materials in parts by weight: 35 parts of kaolin, 20 parts of wollastonite, 15 parts of diopside, 15 parts of bentonite, 7.5 parts of mullite, 6.5 parts of modified tremolite, 4 parts of magnesium oxide, and 2.5 parts of sodium tripolyphosphate.
3. The glaze for hot-bending rock slabs with self-cleaning function according to claim 2, characterized in that: The modification method of the modified tremolite is: S1: adding 1-3 parts of silane coupling agent KH550, 2-4 parts of nano silicon dioxide and 3-5 parts of calcium stearate to 6-8 parts of citric acid solution to obtain a first modified solution; S2: adding 3-5 parts of talcum powder and 1-2 parts of nano-silica sol to 4-7 parts of lanthanum chloride solution and stirring thoroughly to obtain a second modified solution; S3: mixing the first modifying liquid and the second modifying liquid in a weight ratio of 5:3 to obtain a modifying liquid; The tremolite is immersed in a modification liquid which is 3-5 times the total amount of the tremolite and stirred for modification treatment. After the stirring is completed, the modified tremolite is filtered and dried to obtain the modified tremolite.
4. The glaze for hot-bending rock slabs with self-cleaning function according to claim 3, characterized in that: The mass fraction of the citric acid solution is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%.
5. The glaze for hot-bending rock slabs with self-cleaning function according to claim 3, characterized in that: The stirring temperature of the stirring modification treatment is 50-55° C., the stirring time is 1-2 hours, and the stirring speed is 450-500 r / min.
6. The glaze for hot-bending rock slabs with self-cleaning function according to claim 1, characterized in that: The preparation method of the magnesium oxide agent is: S11: 2-4 parts of tetrabutyl titanate, 1-3 parts of urea, 3-5 parts of chitosan solution and 2-3 parts of cordierite are stirred to obtain a ball milling solution; S12: Mix magnesium oxide and ball milling liquid in a weight ratio of 5:3 and perform ball milling. After the ball milling is completed, filter and dry to obtain magnesium oxide agent.
7. The glaze for hot-bending rock slabs with self-cleaning function according to claim 6, characterized in that: The mass fraction of the chitosan solution is 2-5%.
8. The glaze for hot-bending rock slabs with self-cleaning function according to claim 6, characterized in that: The mixing and ball milling process was performed at a ball milling speed of 1500 r / min and the ball milling was performed for 2 h.
9. A method for preparing a glaze for hot-bending rock panels having a self-cleaning effect as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: The raw materials were mixed thoroughly, and then ball-milled at 1500 r / min for 2 h. After the ball-milling was completed, a glaze was obtained.