A daily-use high-strength environmentally friendly ceramic and its preparation process

Abstract

The invention relates to the technical field of environmentally friendly ceramics, and in particular to a daily-use high-strength environmentally friendly ceramic and a preparation process thereof, comprising the following raw materials by weight: 30-35 parts of potassium feldspar, 10-15 parts of sodium feldspar, 10-15 parts of spodumene, 8-12 parts of an effective regulator doped with bentonite, 8-10 parts of mullite, 8-12 parts of a chitosan regulator, 2-5 parts of nano zinc oxide, and 2-5 parts of nano silver powder. The environmentally friendly ceramic of the invention adopts potassium feldspar, sodium feldspar, spodumene and mullite and other raw materials, and is matched with nano zinc oxide and nano silver powder to optimize the antibacterial performance of the product. At the same time, the effective regulator doped with bentonite and the chitosan regulator are coordinated and work together, so that the strength and cleaning performance of the product can be improved in a coordinated manner, and the antibacterial durability of the product is remarkable.

Description

Technical Field

[0001] The invention relates to the technical field of environmentally friendly ceramics, and in particular to daily-use high-strength environmentally friendly ceramics and a preparation process thereof. Background Art

[0002] With the continuous improvement of living standards, daily-use ceramics have entered thousands of households and become common products in modern kitchens, and are widely sought after by restaurants, hotels and other places. Environmental protection has been highly valued by people in all countries of the world today, so environmentally friendly daily-use ceramics have become mainstream products. However, the existing environmentally friendly daily-use ceramic material components are relatively simple, and the strength performance is average, which affects the use effect. In order to improve the strength performance of the product, it is easy to reduce the cleaning performance of the product, and it is difficult to achieve coordinated improvement of the strength and cleaning performance of the product. In addition, the antibacterial durability of the product is poor, which limits the use efficiency of the product. Summary of the invention

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide a daily-use high-strength environmentally friendly ceramic and a preparation process thereof to solve the problems raised in the above-mentioned background technology.

[0004] The present invention solves the technical problem by adopting the following technical solution:

[0005] The present invention provides a daily-use high-strength environmentally friendly ceramic, which comprises the following raw materials in parts by weight:

[0006] 30-35 parts of potassium feldspar, 10-15 parts of sodium feldspar, 10-15 parts of spodumene, 8-12 parts of an effect adjuster doped with bentonite, 8-10 parts of mullite, 8-12 parts of a chitosan regulator, 2-5 parts of nano zinc oxide, and 2-5 parts of nano silver powder.

[0007] Preferably, the daily-use high-strength environmentally friendly ceramics include the following raw materials in parts by weight:

[0008] 32.5 parts of potassium feldspar, 12.5 parts of sodium feldspar, 12.5 parts of spodumene, 10 parts of an effect adjuster doped with bentonite, 10 parts of mullite, 9 parts of a chitosan regulator, 3.5 parts of nano zinc oxide, and 3.5 parts of nano silver powder.

[0009] Preferably, the preparation method of the bentonite-doped effect adjuster is:

[0010] S1: The bentonite powder is first heated to 150-170°C at a rate of 3-5°C / min, kept at this temperature for 5 minutes, then heated to 320-330°C at a rate of 2°C / min, heat-treated for 10-15 minutes, and finally air-cooled to room temperature to obtain heat-treated bentonite;

[0011] S2: sending the heat-treated bentonite into a lanthanum chloride solution with a mass of 4 to 7 times the total mass of the heat-treated bentonite for ultrasonic modification, and after the ultrasonic modification is completed, filtering and drying are performed to obtain a lanthanum-doped bentonite agent;

[0012] S3: First, the nano-silicon dioxide is mixed with a sufficient amount of a 5% hydrochloric acid solution, then washed with water and dried to obtain dry nano-silicon dioxide, and then 5-8 parts of dry nano-silicon dioxide, 2-4 parts of dopamine hydrochloride solution, 1-3 parts of stearic acid and 5-8 parts of sodium alginate solution are mixed by weight to obtain an effect-adjusting modifier;

[0013] S4: The lanthanum-doped bentonite agent and the effect-adjusting modifier are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling speed of 1000-1500 r / min for 2 hours. After the ball-milling is completed, the mixture is washed with water and dried to obtain the effect-adjusting modifier doped with bentonite.

[0014] Preferably, the mass fraction of the lanthanum chloride solution is 2-5%; the ultrasonic power of the ultrasonic modification treatment is 350-400W, and the ultrasonic time is 20-30min.

[0015] Preferably, the concentration of the dopamine hydrochloride solution is 0.4-0.6 g / mL; and the mass fraction of the sodium alginate solution is 10-15%.

[0016] Preferably, the preparation method of the chitosan regulator is:

[0017] S11: irradiating the hydroxyapatite in a proton irradiation box for 5 to 10 minutes at an irradiation power of 350 W, and obtaining irradiated hydroxyapatite after the irradiation is completed;

[0018] S12: placing the irradiated hydroxyapatite in a modification liquid of 3 to 5 times the total mass of the irradiated hydroxyapatite and stirring for modification treatment, after the stirring is completed, washing with water and drying to obtain a modified hydroxyapatite agent;

[0019] S13: 4 to 7 parts of modified hydroxyapatite agent, 1 to 3 parts of silane coupling agent, 2 to 5 parts of chitosan solution and 1 to 2 parts of sodium dodecylbenzene sulfonate solution are fully mixed by weight to obtain a chitosan regulator.

[0020] Preferably, the stirring temperature of the stirring modification treatment is 50-55°C, the stirring speed is 450-550r / min, and the stirring time is 10-25min;

[0021] The silane coupling agent is silane coupling agent KH560; the mass fraction of the chitosan solution is 4-6%; and the mass fraction of the sodium dodecylbenzene sulfonate solution is 10-15%.

[0022] Preferably, the preparation method of the modified liquid is:

[0023] 2 to 5 parts by weight of 5% yttrium nitrate solution and 1 to 2 parts of carboxymethyl cellulose are added to 6 to 10 parts by weight of 10% sodium citrate solution, and then 0.25 to 0.35 parts of silicon carbide whiskers are added and mixed thoroughly to obtain a modified solution.

[0024] Preferably, the rotation speed for sufficient blending is 1000-1500 r / min, and the blending time is 45 min.

[0025] The present invention also provides a method for preparing daily-use high-strength environmentally friendly ceramics, comprising the following steps:

[0026] Step 1: Mix the raw materials uniformly according to the proportion to obtain a uniformly mixed material;

[0027] Step 2: First, the mixed material is fully ball-milled in a ball mill at a speed of 1000 r / min for 2 hours. After the ball milling is completed, the product is filtered and dried to obtain a dry product. The dry product is then placed in a mold and sintered in a kiln at a sintering temperature of 1050-1100°C for 120 minutes. After the sintering is completed, the product is demolded to obtain the daily-use high-strength environmentally friendly ceramic.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The environmentally friendly ceramics of the present invention adopt raw materials such as potassium feldspar, sodium feldspar, spodumene and mullite, and are matched with nano zinc oxide and nano silver powder to optimize the antibacterial performance of the product. At the same time, the effect adjuster doped with bentonite and the chitosan regulator are added to coordinate and work together. The strength and cleaning performance of the product can be improved in a coordinated manner, and the antibacterial durability of the product is remarkable;

[0030] 2. In the preparation of the effect adjuster doped with bentonite, bentonite is used as the base material. The temperature is first raised to 150-170°C at a rate of 3-5°C / min, kept warm for 5 minutes, then heated to 320-330°C at a rate of 2°C / min and heat-treated for 10-15 minutes, and finally air-cooled to room temperature to optimize the interlayer spacing of the bentonite, improve the activity of the bentonite, facilitate the interlayer spacing of the bentonite in the system, optimize the performance of the product, and use ultrasonic modification in lanthanum chloride solution to further enhance the bentonite activity. The active efficacy of bentonite is obtained by mixing nano-silicon dioxide, dopamine hydrochloride solution, stearic acid and sodium alginate solution to obtain an efficacy modifier, and the raw materials in the efficacy modifier are mutually adjusted and adjusted, and nano-silicon dioxide is used as a co-ingredient to cooperate with the raw materials in the efficacy modifier to enhance the interface effect between bentonite and the raw materials, thereby improving the overall interface of the system and enhancing the bonding force between the raw materials of the product, and the lamellar bentonite structure is combined with the spherical nano-silicon dioxide structure to enhance the strength, cleanliness and antibacterial durability of the product;

[0031] 3. The chitosan regulator uses hydroxyapatite before the proton irradiation box to optimize the activity of hydroxyapatite, and then modifies it with a modifying liquid. Finally, the modified hydroxyapatite is blended with chitosan solution, silane coupling agent and sodium dodecylbenzene sulfonate solution. Through the coordination between the raw materials, the interfacial activity between the system raw materials can be enhanced, and the performance of the product can be improved. At the same time, hydroxyapatite as a point structure can strengthen the system performance and further enhance the performance of the product.

[0032] 4. The modified liquid is made of silicon carbide whiskers combined with yttrium nitrate solution, carboxymethyl cellulose and 10% sodium citrate solution by mass. The whisker structure is further interspersed in the reinforced dispersion system to further enhance the performance of the product and optimize the product's water-resistant stability. DETAILED DESCRIPTION

[0033] 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.

[0034] The embodiment of the present invention provides a daily-use high-strength environmentally friendly ceramic, which includes the following raw materials in parts by weight:

[0035] 30-35 parts of potassium feldspar, 10-15 parts of sodium feldspar, 10-15 parts of spodumene, 8-12 parts of an effect adjuster doped with bentonite, 8-10 parts of mullite, 8-12 parts of a chitosan regulator, 2-5 parts of nano zinc oxide, and 2-5 parts of nano silver powder.

[0036] The daily-use high-strength environmentally friendly ceramics of this embodiment include the following raw materials in parts by weight:

[0037] 32.5 parts of potassium feldspar, 12.5 parts of sodium feldspar, 12.5 parts of spodumene, 10 parts of an effect adjuster doped with bentonite, 10 parts of mullite, 9 parts of a chitosan regulator, 3.5 parts of nano zinc oxide, and 3.5 parts of nano silver powder.

[0038] The preparation method of the effect adjusting agent doped with bentonite in this embodiment is:

[0039] S1: The bentonite powder is first heated to 150-170°C at a rate of 3-5°C / min, kept at this temperature for 5 minutes, then heated to 320-330°C at a rate of 2°C / min, heat-treated for 10-15 minutes, and finally air-cooled to room temperature to obtain heat-treated bentonite;

[0040] S2: sending the heat-treated bentonite into a lanthanum chloride solution with a mass of 4 to 7 times the total mass of the heat-treated bentonite for ultrasonic modification, and after the ultrasonic modification is completed, filtering and drying are performed to obtain a lanthanum-doped bentonite agent;

[0041] S3: First, the nano-silicon dioxide is mixed with a sufficient amount of a 5% hydrochloric acid solution, then washed with water and dried to obtain dry nano-silicon dioxide, and then 5-8 parts of dry nano-silicon dioxide, 2-4 parts of dopamine hydrochloride solution, 1-3 parts of stearic acid and 5-8 parts of sodium alginate solution are mixed by weight to obtain an effect-adjusting modifier;

[0042] S4: The lanthanum-doped bentonite agent and the effect-adjusting modifier are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling speed of 1000-1500 r / min for 2 hours. After the ball-milling is completed, the mixture is washed with water and dried to obtain the effect-adjusting modifier doped with bentonite.

[0043] The mass fraction of the lanthanum chloride solution in this embodiment is 2-5%; the ultrasonic power of the ultrasonic modification treatment is 350-400W, and the ultrasonic time is 20-30min.

[0044] The concentration of the dopamine hydrochloride solution in this embodiment is 0.4-0.6 g / mL; the mass fraction of the sodium alginate solution is 10-15%.

[0045] The preparation method of the chitosan regulator of this embodiment is:

[0046] S11: irradiating the hydroxyapatite in a proton irradiation box for 5 to 10 minutes at an irradiation power of 350 W, and obtaining irradiated hydroxyapatite after the irradiation is completed;

[0047] S12: placing the irradiated hydroxyapatite in a modification liquid of 3 to 5 times the total mass of the irradiated hydroxyapatite and stirring for modification treatment, after the stirring is completed, washing with water and drying to obtain a modified hydroxyapatite agent;

[0048] S13: 4 to 7 parts of modified hydroxyapatite agent, 1 to 3 parts of silane coupling agent, 2 to 5 parts of chitosan solution and 1 to 2 parts of sodium dodecylbenzene sulfonate solution are fully mixed by weight to obtain a chitosan regulator.

[0049] The stirring temperature of the stirring modification treatment in this embodiment is 50-55°C, the stirring speed is 450-550r / min, and the stirring time is 10-25min;

[0050] The silane coupling agent is silane coupling agent KH560; the mass fraction of the chitosan solution is 4-6%; and the mass fraction of the sodium dodecylbenzene sulfonate solution is 10-15%.

[0051] The preparation method of the modified liquid of this embodiment is:

[0052] 2 to 5 parts by weight of 5% yttrium nitrate solution and 1 to 2 parts of carboxymethyl cellulose are added to 6 to 10 parts by weight of 10% sodium citrate solution, and then 0.25 to 0.35 parts of silicon carbide whiskers are added and mixed thoroughly to obtain a modified solution.

[0053] The rotation speed for sufficient blending in this embodiment is 1000-1500 r / min, and the blending time is 45 min.

[0054] A method for preparing a daily-use high-strength environmentally friendly ceramic in this embodiment comprises the following steps:

[0055] Step 1: Mix the raw materials uniformly according to the proportion to obtain a uniformly mixed material;

[0056] Step 2: First, the mixed material is fully ball-milled in a ball mill at a speed of 1000 r / min for 2 hours. After the ball milling is completed, the product is filtered and dried to obtain a dry product. The dry product is then placed in a mold and sintered in a kiln at a sintering temperature of 1050-1100°C for 120 minutes. After the sintering is completed, the product is demolded to obtain the daily-use high-strength environmentally friendly ceramic.

[0057] Example 1: A daily-use high-strength environmentally friendly ceramic, comprising the following raw materials in parts by weight:

[0058] 30 parts of potassium feldspar, 10 parts of sodium feldspar, 10 parts of spodumene, 8 parts of an effect adjuster doped with bentonite, 8 parts of mullite, 8 parts of a chitosan regulator, 2 parts of nano zinc oxide, and 2 parts of nano silver powder.

[0059] The preparation method of the effect adjusting agent doped with bentonite in this embodiment is as follows:

[0060] S1: The bentonite powder was first heated to 150°C at a rate of 3°C / min, kept at this temperature for 5 minutes, then heated to 320°C at a rate of 2°C / min for heat treatment for 10 minutes, and finally air-cooled to room temperature to obtain heat-treated bentonite;

[0061] S2: sending the heat-treated bentonite into a lanthanum chloride solution with a mass 4 times that of the total mass of the heat-treated bentonite for ultrasonic modification, and after the ultrasonic modification is completed, filtering and drying are performed to obtain a lanthanum-doped bentonite agent;

[0062] S3: First, the nano-silicon dioxide is mixed with a sufficient amount of a 5% hydrochloric acid solution, then washed with water and dried to obtain dry nano-silicon dioxide, and then 5 parts of dry nano-silicon dioxide, 2 parts of dopamine hydrochloride solution, 1 part of stearic acid and 5 parts of sodium alginate solution are mixed by weight to obtain an effect-adjusting modifier;

[0063] S4: The lanthanum-doped bentonite agent and the effect-adjusting modifier are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling speed of 1000 r / min for 2 h. After the ball-milling is completed, the mixture is washed with water and dried to obtain the effect-adjusting modifier doped with bentonite.

[0064] The mass fraction of the lanthanum chloride solution in this embodiment is 2%; the ultrasonic power of the ultrasonic modification treatment is 350W, and the ultrasonic time is 20min.

[0065] The concentration of the dopamine hydrochloride solution in this example is 0.4 g / mL; the mass fraction of the sodium alginate solution is 10%.

[0066] The preparation method of the chitosan regulator of this embodiment is:

[0067] S11: irradiating the hydroxyapatite in a proton irradiation box for 5 minutes at an irradiation power of 350 W, and obtaining irradiated hydroxyapatite after the irradiation is completed;

[0068] S12: placing the irradiated hydroxyapatite in a modification liquid of 3 times the total mass of the irradiated hydroxyapatite and stirring for modification treatment, after the stirring is completed, washing with water and drying to obtain a modified hydroxyapatite agent;

[0069] S13: 4 parts of modified hydroxyapatite agent, 1 part of silane coupling agent, 2 parts of chitosan solution and 1 part of sodium dodecylbenzene sulfonate solution are fully mixed by weight to obtain a chitosan regulator.

[0070] The stirring temperature of the stirring modification treatment in this embodiment is 50°C, the stirring speed is 450r / min, and the stirring time is 10min;

[0071] The silane coupling agent is silane coupling agent KH560; the mass fraction of the chitosan solution is 4%; and the mass fraction of the sodium dodecylbenzene sulfonate solution is 10%.

[0072] The preparation method of the modified liquid of this embodiment is:

[0073] 2 parts by weight of 5% yttrium nitrate solution and 1 part of carboxymethyl cellulose were added to 6 parts by weight of 10% sodium citrate solution, and then 0.25 parts of silicon carbide whiskers were added and mixed thoroughly to obtain a modified solution.

[0074] The rotation speed for sufficient blending in this embodiment is 1000 r / min, and the blending time is 45 min.

[0075] A method for preparing a daily-use high-strength environmentally friendly ceramic in this embodiment comprises the following steps:

[0076] Step 1: Mix the raw materials uniformly according to the proportion to obtain a uniformly mixed material;

[0077] Step 2: First, the mixed material is fully ball-milled in a ball mill at a speed of 1000 r / min for 2 hours. After the ball milling is completed, the product is filtered and dried to obtain a dry product. The dry product is then placed in a mold and sintered in a kiln at a sintering temperature of 1050°C for 120 minutes. After the sintering is completed, the product is demolded to obtain the daily-use high-strength environmentally friendly ceramic.

[0078] Example 2: A daily-use high-strength environmentally friendly ceramic, comprising the following raw materials in parts by weight:

[0079] 35 parts of potassium feldspar, 15 parts of sodium feldspar, 15 parts of spodumene, 12 parts of an effect adjuster doped with bentonite, 10 parts of mullite, 12 parts of a chitosan regulator, 5 parts of nano zinc oxide, and 5 parts of nano silver powder.

[0080] The preparation method of the effect adjusting agent doped with bentonite in this embodiment is:

[0081] S1: The bentonite powder was first heated to 170°C at a rate of 5°C / min, kept at this temperature for 5 minutes, then heated to 330°C at a rate of 2°C / min for heat treatment for 15 minutes, and finally air-cooled to room temperature to obtain heat-treated bentonite;

[0082] S2: sending the heat-treated bentonite into a lanthanum chloride solution with a mass 7 times that of the total mass of the heat-treated bentonite for ultrasonic modification, and after the ultrasonic modification is completed, filtering and drying are performed to obtain a lanthanum-doped bentonite agent;

[0083] S3: First, mix the nano-silica in a sufficient amount of 5% by mass hydrochloric acid solution, then wash with water and dry to obtain dry nano-silica, and then mix 8 parts of dry nano-silica, 4 parts of dopamine hydrochloride solution, 3 parts of stearic acid and 8 parts of sodium alginate solution by weight to obtain an effect-adjusting modifier;

[0084] S4: The lanthanum-doped bentonite agent and the effect-adjusting modifier are mixed and ball-milled in a weight ratio of 5:3, with a ball-milling speed of 1500 r / min for 2 hours. After the ball-milling is completed, the mixture is washed with water and dried to obtain the effect-adjusting modifier doped with bentonite.

[0085] The mass fraction of the lanthanum chloride solution in this embodiment is 5%; the ultrasonic power of the ultrasonic modification treatment is 400W, and the ultrasonic time is 30min.

[0086] The concentration of the dopamine hydrochloride solution in this example is 0.6 g / mL; the mass fraction of the sodium alginate solution is 15%.

[0087] The preparation method of the chitosan regulator of this embodiment is:

[0088] S11: irradiating the hydroxyapatite in a proton irradiation box for 10 minutes at an irradiation power of 350 W, and obtaining irradiated hydroxyapatite after the irradiation is completed;

[0089] S12: placing the irradiated hydroxyapatite in a modification liquid of 5 times the total mass of the irradiated hydroxyapatite and stirring for modification treatment, after the stirring is completed, washing with water and drying to obtain a modified hydroxyapatite agent;

[0090] S13: 7 parts of modified hydroxyapatite agent, 3 parts of silane coupling agent, 5 parts of chitosan solution and 2 parts of sodium dodecylbenzene sulfonate solution are fully mixed by weight to obtain a chitosan regulator.

[0091] The stirring temperature of the stirring modification treatment in this embodiment is 55°C, the stirring speed is 550r / min, and the stirring time is 25min;

[0092] The silane coupling agent is silane coupling agent KH560; the mass fraction of the chitosan solution is 6%; and the mass fraction of the sodium dodecylbenzene sulfonate solution is 15%.

[0093] The preparation method of the modified liquid of this embodiment is:

[0094] 5 parts by weight of 5% yttrium nitrate solution and 2 parts by weight of carboxymethyl cellulose were added to 10 parts by weight of 10% sodium citrate solution, and then 0.35 parts of silicon carbide whiskers were added and mixed thoroughly to obtain a modified solution.

[0095] The rotation speed for sufficient blending in this embodiment is 1500r / min, and the blending time is 45min.

[0096] A method for preparing a daily-use high-strength environmentally friendly ceramic in this embodiment comprises the following steps:

[0097] Step 1: Mix the raw materials uniformly according to the proportion to obtain a uniformly mixed material;

[0098] Step 2: First, the mixed material is fully ball-milled in a ball mill at a speed of 1000 r / min for 2 hours. After the ball milling is completed, the product is filtered and dried to obtain a dry product. The dry product is then placed in a mold and sintered in a kiln at a sintering temperature of 1100°C for 120 minutes. After the sintering is completed, the product is demolded to obtain the daily-use high-strength environmentally friendly ceramic.

[0099] Example 3: A daily-use high-strength environmentally friendly ceramic, comprising the following raw materials in parts by weight:

[0100] 32.5 parts of potassium feldspar, 12.5 parts of sodium feldspar, 12.5 parts of spodumene, 10 parts of an effect adjuster doped with bentonite, 10 parts of mullite, 9 parts of a chitosan regulator, 3.5 parts of nano zinc oxide, and 3.5 parts of nano silver powder.

[0101] The preparation method of the effect adjusting agent doped with bentonite in this embodiment is:

[0102] S1: The bentonite powder was first heated to 160°C at a rate of 4°C / min, kept at this temperature for 5 minutes, then heated to 325°C at a rate of 2°C / min for heat treatment for 12 minutes, and finally air-cooled to room temperature to obtain heat-treated bentonite;

[0103] S2: sending the heat-treated bentonite into a lanthanum chloride solution with a mass of 5.5 times the total mass of the heat-treated bentonite for ultrasonic modification, and after the ultrasonic modification is completed, filtering and drying are performed to obtain a lanthanum-doped bentonite agent;

[0104] S3: First, mix the nano-silica in a sufficient amount of 5% by mass hydrochloric acid solution, then wash with water and dry to obtain dry nano-silica, and then mix 6.5 parts of dry nano-silica, 3 parts of dopamine hydrochloride solution, 2 parts of stearic acid and 6.5 parts of sodium alginate solution by weight to obtain an effect-adjusting modifier;

[0105] S4: The lanthanum-doped bentonite agent and the effect-adjusting modifier are mixed and ball-milled in a weight ratio of 5:3 at a ball-milling speed of 1250 r / min for 2 h. After the ball-milling is completed, the mixture is washed with water and dried to obtain the effect-adjusting modifier doped with bentonite.

[0106] The mass fraction of the lanthanum chloride solution in this embodiment is 3.5%; the ultrasonic power of the ultrasonic modification treatment is 370W, and the ultrasonic time is 25min.

[0107] The concentration of the dopamine hydrochloride solution in this example is 0.5 g / mL; the mass fraction of the sodium alginate solution is 12.5%.

[0108] The preparation method of the chitosan regulator of this embodiment is:

[0109] S11: irradiating the hydroxyapatite in a proton irradiation box for 7.5 minutes at an irradiation power of 350 W, and obtaining irradiated hydroxyapatite after the irradiation is completed;

[0110] S12: placing the irradiated hydroxyapatite in a modification liquid of 4 times the total mass of the irradiated hydroxyapatite and stirring for modification treatment, after the stirring is completed, washing with water and drying to obtain a modified hydroxyapatite agent;

[0111] S13: 5.5 parts of modified hydroxyapatite agent, 2 parts of silane coupling agent, 3.5 parts of chitosan solution and 1.5 parts of sodium dodecylbenzene sulfonate solution are fully mixed by weight to obtain a chitosan regulator.

[0112] The stirring temperature of the stirring modification treatment in this embodiment is 52°C, the stirring speed is 500r / min, and the stirring time is 20min;

[0113] The silane coupling agent is silane coupling agent KH560; the mass fraction of the chitosan solution is 5%; and the mass fraction of the sodium dodecylbenzene sulfonate solution is 12.5%.

[0114] The preparation method of the modified liquid of this embodiment is:

[0115] 3.5 parts by weight of 5% yttrium nitrate solution and 1.5 parts by weight of carboxymethyl cellulose were added to 8 parts by weight of 10% sodium citrate solution, and then 0.30 parts of silicon carbide whiskers were added and mixed thoroughly to obtain a modified solution.

[0116] The rotation speed for sufficient blending in this embodiment is 1250 r / min, and the blending time is 45 min.

[0117] A method for preparing a daily-use high-strength environmentally friendly ceramic in this embodiment comprises the following steps:

[0118] Step 1: Mix the raw materials uniformly according to the proportion to obtain a uniformly mixed material;

[0119] Step 2: First, the mixed material is fully ball-milled in a ball mill at a speed of 1000 r / min for 2 hours. After the ball milling is completed, the product is filtered and dried to obtain a dry product. The dry product is then placed in a mold and sintered in a kiln at a sintering temperature of 1075°C for 120 minutes. After the sintering is completed, the product is demolded to obtain the daily-use high-strength environmentally friendly ceramic.

[0120] Comparative Example 1:

[0121] The difference from Example 3 is that no effect adjuster doped with bentonite is added.

[0122] Comparative Example 2:

[0123] The difference from Example 3 is that the S1 step is not used in the preparation of the effect adjuster doped with bentonite.

[0124] Comparative Example 3:

[0125] The difference from Example 3 is that the S2 step is not used in the preparation of the effect adjuster doped with bentonite.

[0126] Comparative Example 4:

[0127] The difference from Example 3 is that no effect-adjusting modifier treatment is used.

[0128] Comparative Example 5:

[0129] The difference from Example 3 is that the dry nano-silicon dioxide and dopamine hydrochloride solution were not used in the preparation of the effect-adjusting modifier.

[0130] Comparative Example 6:

[0131] The difference from Example 3 is that no chitosan regulator is added.

[0132] Comparative Example 7:

[0133] The difference from Example 3 is that no modified hydroxyapatite agent is added to the chitosan regulator.

[0134] Comparative Example 8:

[0135] The difference from Example 3 is that no modification liquid treatment is used in the preparation of the modified hydroxyapatite agent.

[0136] Comparative Example 9:

[0137] The difference from Example 3 is that no silicon carbide whiskers are added to the modified liquid.

[0138] Comparative Example 10:

[0139] The difference from Example 3 is that no yttrium nitrate solution and carboxymethyl cellulose are added to the modified solution.

[0140] Comparative Example 11:

[0141] The difference from Example 3 is that no silane coupling agent or chitosan solution is added to the chitosan regulator.

[0142] The products of Examples 1-3 and Comparative Examples 1-11 were tested for cleaning performance, strength performance and antibacterial performance under normal conditions. At the same time, the scratch resistance of the products was tested after the products were scratched 50 times with a load of 10N. The test results are shown in Table 1; wherein, the cleaning performance was tested in accordance with GB / T31859-2015 "Test Method for Ease of Cleaning of Daily-use Porcelain".

[0143] Table 1: Product performance test results of Examples 1-3 and Comparative Examples 1-11

[0144]

[0145] It can be concluded from Examples 1-3 and Comparative Examples 1-11 that the product of Example 3 of the present invention has excellent antibacterial rate and antibacterial performance of Escherichia coli and significant flexural strength under normal conditions, and at the same time, the residual oil stain is the lowest, and the product cleaning ability is the most significant. The antibacterial property, flexural strength and cleaning property of the product can achieve coordinated improvement; at the same time, the product has significant performance stability under scratching conditions;

[0146] From Comparative Example 1, Comparative Example 6 and Example 3, it can be seen that the product performance deteriorates most significantly when the product does not add the effect adjuster doped with bentonite or the chitosan adjuster. The performance effect of the product is most significant when the two are coordinated and work together.

[0147] It can be seen from Comparative Examples 2-5 and Example 3 that the performance of the product has a tendency to deteriorate when the S1 step, the S2 step, and the performance modifier are not used in the preparation of the performance modifier doped with bentonite. In addition, the performance modifier is not treated with dry nano-silicon dioxide and dopamine hydrochloride solution, and there is also a tendency to deteriorate. Only when the performance modifier obtained by the method of the present invention is combined with the S1 step and the S2 step of the present invention, the performance effect of the product is the most significant.

[0148] It can be seen from Comparative Examples 7-11 and Example 3 that the chitosan regulator is not added with modified hydroxyapatite agent, and the modified hydroxyapatite agent is not treated with a modifying liquid in its preparation, and the performance of the product shows a trend of deterioration. The chitosan regulator obtained by using a hydroxyapatite agent modified by a modifying liquid has a more significant performance deterioration. At the same time, the modified liquid does not contain silicon carbide whiskers, yttrium nitrate solution, or carboxymethyl cellulose, and the performance of the product also shows a trend of deterioration. The chitosan regulator obtained by using the modifying liquid obtained by the method of the present invention and the specific method of the present invention has the most significant performance effect of the product. Other methods are not as significant as the effects of the present invention. In addition, the chitosan regulator does not contain silane coupling agent or chitosan solution, and the performance of the product also shows a trend of deterioration.

[0149] Only by using the specific raw materials of the present invention, the performance effect of the product is most significant, and using other raw materials instead cannot achieve the effect of the present invention.

[0150] 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.

[0151] 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 daily-use high-strength environmentally friendly ceramic, characterized in that: It includes the following raw materials in parts by weight: 30-35 parts of potassium feldspar, 10-15 parts of sodium feldspar, 10-15 parts of spodumene, 8-12 parts of an effect adjuster doped with bentonite, 8-10 parts of mullite, 8-12 parts of a chitosan regulator, 2-5 parts of nano zinc oxide, and 2-5 parts of nano silver powder; The preparation method of the effect adjuster doped with bentonite is: S1: The bentonite powder is first heated to 150-170°C at a rate of 3-5°C / min, kept at this temperature for 5 minutes, then heated to 320-330°C at a rate of 2°C / min, heat-treated for 10-15 minutes, and finally air-cooled to room temperature to obtain heat-treated bentonite; S2: sending the heat-treated bentonite into a lanthanum chloride solution with a mass of 4 to 7 times the total mass of the heat-treated bentonite for ultrasonic modification, and after the ultrasonic modification is completed, filtering and drying are performed to obtain a lanthanum-doped bentonite agent; S3: First, the nano-silicon dioxide is mixed with a sufficient amount of a 5% hydrochloric acid solution, then washed with water and dried to obtain dry nano-silicon dioxide, and then 5-8 parts of dry nano-silicon dioxide, 2-4 parts of dopamine hydrochloride solution, 1-3 parts of stearic acid and 5-8 parts of sodium alginate solution are mixed by weight to obtain an effect-adjusting modifier; S4: mixing the lanthanum-doped bentonite agent and the effect-adjusting modifier in a weight ratio of 5:3 and subjecting the mixture to ball milling at a ball milling speed of 1000-1500 r / min for 2 h. After the ball milling is completed, washing with water and drying are performed to obtain the effect-adjusting agent doped with bentonite; The preparation method of the chitosan regulator is: S11: irradiating the hydroxyapatite in a proton irradiation box for 5 to 10 minutes at an irradiation power of 350 W, and obtaining irradiated hydroxyapatite after the irradiation is completed; S12: placing the irradiated hydroxyapatite in a modification liquid of 3 to 5 times the total mass of the irradiated hydroxyapatite and stirring for modification treatment, after the stirring is completed, washing with water and drying to obtain a modified hydroxyapatite agent; S13: fully mixing 4 to 7 parts of modified hydroxyapatite agent, 1 to 3 parts of silane coupling agent, 2 to 5 parts of chitosan solution and 1 to 2 parts of sodium dodecylbenzene sulfonate solution by weight to obtain a chitosan regulator; The preparation method of the modified liquid is: 2 to 5 parts by weight of 5% yttrium nitrate solution and 1 to 2 parts of carboxymethyl cellulose are added to 6 to 10 parts by weight of 10% sodium citrate solution, and then 0.25 to 0.35 parts of silicon carbide whiskers are added and mixed thoroughly to obtain a modified solution.

2. A daily-use high-strength environmentally friendly ceramic according to claim 1, characterized in that: The daily-use high-strength environmentally friendly ceramics include the following raw materials in parts by weight: 32.5 parts of potassium feldspar, 12.5 parts of sodium feldspar, 12.5 parts of spodumene, 10 parts of an effect adjuster doped with bentonite, 10 parts of mullite, 9 parts of a chitosan regulator, 3.5 parts of nano zinc oxide, and 3.5 parts of nano silver powder.

3. The daily-use high-strength environmentally friendly ceramic according to claim 1, characterized in that: The mass fraction of the lanthanum chloride solution is 2-5%; the ultrasonic power of the ultrasonic modification treatment is 350-400W, and the ultrasonic time is 20-30min.

4. The daily-use high-strength environmentally friendly ceramic according to claim 1, characterized in that: The concentration of the dopamine hydrochloride solution is 0.4-0.6 g / mL; the mass fraction of the sodium alginate solution is 10-15%.

5. The daily-use high-strength environmentally friendly ceramic according to claim 1, characterized in that: The stirring temperature of the stirring modification treatment is 50-55°C, the stirring speed is 450-550r / min, and the stirring time is 10-25min; The silane coupling agent is silane coupling agent KH560; the mass fraction of the chitosan solution is 4-6%; and the mass fraction of the sodium dodecylbenzene sulfonate solution is 10-15%.

6. The daily-use high-strength environmentally friendly ceramic according to claim 1, characterized in that: The rotation speed for sufficient blending is 1000-1500 r / min, and the blending time is 45 min.

7. A process for preparing daily-use high-strength environmentally friendly ceramics, used for preparing a daily-use high-strength environmentally friendly ceramic as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Mix the raw materials uniformly according to the proportion to obtain a uniformly mixed material; Step 2: First, the mixed material is fully ball-milled in a ball mill at a speed of 1000 r / min for 2 hours. After the ball milling is completed, the product is filtered and dried to obtain a dry product. The dry product is then placed in a mold and sintered in a kiln at a sintering temperature of 1050-1100°C for 120 minutes. After the sintering is completed, the product is demolded to obtain the daily-use high-strength environmentally friendly ceramic.

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