Zirconium silicate for architectural ceramics and method for preparing the same

Abstract

The application relates to the technical field of zirconium silicate, and particularly discloses a kind of zirconium silicate for building ceramics and a preparation method thereof.The zirconium silicate for building ceramics comprises zirconium silicate, whisker adjusting agent and flaky talc powder agent;the mass ratio of the zirconium silicate, whisker adjusting agent and flaky talc powder agent is (2-5):(1-3):2.The zirconium silicate for building ceramics is coordinated by the whisker adjusting agent and flaky talc powder agent, the synergistic effect among raw materials is used to improve the antibacterial durability and stain resistance and easy cleaning performance of the product system, the performance effect of the product is improved, and the performance stability of the product under washing condition is significantly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building ceramics, in particular to a zirconium silicate for building ceramics and a preparation method thereof. BACKGROUND

[0002] Building ceramics are ceramic products for various civil engineering projects such as houses, roads, water supply and drainage, and gardens. There are ceramic tiles, colored ceramic particles, and ceramic pipes. According to the material quality, they are divided into four categories: coarse pottery, fine pottery, semi-porcelain, and porcelain; according to the sintering degree of the body, they are divided into porous, dense, and glazed and unglazed products. Their common characteristics are high strength, moisture resistance, fire resistance, acid resistance, alkali resistance, frost resistance, non-aging, non-degradation, non-fading, easy cleaning, and rich artistic decoration effects.

[0003] The existing zirconium silicate for building ceramics is relatively conventional and simple, has little effect on the performance of ceramic products, and has no obvious improvement effect on the antibacterial performance of ceramics. At the same time, it is difficult to coordinate and improve the antibacterial and stain-resistant performance of the product, limiting the use efficiency of the product. For example, the use of zirconium silicate in the antibacterial ceramic glaze and its preparation method and application disclosed in Chinese patent CN2019113408 is relatively conventional, and it is difficult to optimize the performance effect of the product. SUMMARY

[0004] In view of the defects of the prior art, the purpose of the present application is to provide a zirconium silicate for building ceramics and a preparation method thereof to solve the problems raised in the background art.

[0005] The technical problem solved by the present application adopts the following technical scheme:

[0006] The present application provides a zirconium silicate for building ceramics, which comprises zirconium silicate, whisker adjusting agent and flaky talc powder agent; the mass ratio of the zirconium silicate, whisker adjusting agent and flaky talc powder agent is (2-5):(1-3):2; wherein the particle size of the zirconium silicate is 2-3mm.

[0007] Preferably, the preparation method of the whisker adjusting agent is:

[0008] The silicon carbide whisker is first heated at 210-230℃ for 10-15min, then cooled to 55-60℃ at a rate of 2-4℃ / min, and kept for 5-10min;

[0009] The nano-magnesium oxide is placed in a proton irradiation box for irradiation treatment, and after the treatment is completed, the treated nano-magnesium oxide and chitosan solution are stirred and mixed according to a weight ratio of 2:5 to form a nano-magnesium oxide agent;

[0010] 4-7 parts of the heat-preserved silicon carbide whiskers, 1-3 parts of nano-silica sol, 2-5 parts of nano-magnesium oxide agent and 8-12 parts of yttrium nitrate solution are ball-milled in a ball mill for improved treatment, after the ball-milling, water washing and drying, the whisker adjusting agent is obtained.

[0011] Preferably, the mass fraction of the yttrium nitrate solution is 4-7%.

[0012] Preferably, the ball-milling speed of the ball-milling improved treatment is 1000-1500 r / min, and the ball-milling time is 1-2 h.

[0013] Preferably, the irradiation power of the proton irradiation box is 300-400 W, and the irradiation time is 10-20 min; the mass fraction of the chitosan solution is 2-5%.

[0014] Preferably, the preparation method of the flaky talc powder agent is as follows:

[0015] The flaky talc powder is first stirred and uniformly mixed in a sufficient hydrochloric acid solution, then water washed and centrifugally separated, and then the centrifugally separated flaky talc powder is uniformly mixed with a sufficient potassium permanganate solution, and finally water washed and centrifugally separated, to obtain the flaky talc powder agent;

[0016] 3-5 parts of the flaky talc powder agent, 1-2 parts of a 5% lanthanum chloride solution and 4-8 parts of a sodium silicate solution and 0.35-0.45 parts of a phosphoric acid buffer solution are stirred and uniformly mixed, and finally water washed and dried, to obtain the flaky talc powder agent.

[0017] Preferably, the mass fraction of the hydrochloric acid solution is 2-5%; the mass fraction of the potassium permanganate solution is 10-15%.

[0018] Preferably, the mass fraction of the sodium silicate solution is 10-15%; and the pH value of the phosphoric acid buffer solution is 5.0-5.5.

[0019] The application further provides a preparation method of the zirconium silicate for building ceramics, comprising the following steps:

[0020] Step one, the raw materials are weighed according to the weight parts:

[0021] Step two, the zirconium silicate, the whisker adjusting agent and the flaky talc powder agent are stirred and uniformly mixed, to obtain the zirconium silicate for building ceramics.

[0022] Compared with the prior art, the application has the following beneficial effects:

[0023] The zirconium silicate for building ceramics in the application is coordinated by the whisker adjusting agent and the flaky talc powder agent, the synergistic effect between the raw materials is adopted, the antibacterial durability and the stain resistance and easy cleaning performance of the product system are enhanced, the performance effect of the product is coordinated and improved, and the performance stability of the product under washing conditions is significantly improved. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0025] The zirconium silicate for building ceramics in the embodiment comprises zirconium silicate, whisker adjusting agent and flaky talc powder agent; the mass ratio of the zirconium silicate, whisker adjusting agent and flaky talc powder agent is (2-5):(1-3):2; wherein the particle size of the zirconium silicate is 2-3 mm.

[0026] The preparation method of the whisker adjusting agent in the embodiment is as follows:

[0027] The silicon carbide whisker is first heated at 210-230 DEG C for 10-15 min, then cooled to 55-60 DEG C at a rate of 2-4 DEG C / min, and kept for 5-10 min;

[0028] The nano-magnesium oxide is placed in a proton irradiation box for treatment, and then the treated nano-magnesium oxide and chitosan solution are stirred and mixed according to a weight ratio of 2:5 to form a nano-magnesium oxide agent;

[0029] The 4-7 parts of the heat-treated silicon carbide whisker, 1-3 parts of nano-silica sol, 2-5 parts of nano-magnesium oxide agent and 8-12 parts of yttrium nitrate solution are ball-milled in a ball mill for improvement treatment, and then washed with water and dried to obtain the whisker adjusting agent.

[0030] The mass fraction of the yttrium nitrate solution in the embodiment is 4-7%.

[0031] The ball-milling speed of the ball-milling improvement treatment in the embodiment is 1000-1500 r / min, and the ball-milling time is 1-2 h.

[0032] The irradiation power of the proton irradiation box in the embodiment is 300-400 W, and the irradiation time is 10-20 min; the mass fraction of the chitosan solution is 2-5%.

[0033] The preparation method of the flaky talc powder agent in the embodiment is as follows:

[0034] The flaky talc powder is first stirred and mixed in a sufficient amount of hydrochloric acid solution, then washed with water and centrifuged, and then the centrifuged flaky talc powder is mixed with a sufficient amount of potassium permanganate solution, washed with water and centrifuged to obtain the flaky talc powder agent;

[0035] 3-5 parts of the flaky talc powder, 1-2 parts of a 5% by mass lanthanum chloride solution, 4-8 parts of a sodium silicate solution, and 0.35-0.45 parts of a phosphate buffer solution are stirred and mixed thoroughly, and then washed with water and dried to obtain the flaky talc powder.

[0036] The hydrochloric acid solution has a mass fraction of 2-5% in the embodiment; and the potassium permanganate solution has a mass fraction of 10-15%.

[0037] The sodium silicate solution has a mass fraction of 10-15% in the embodiment; and the phosphate buffer solution has a pH value of 5.0-5.5.

[0038] The method for preparing the zirconium silicate for building ceramics in the embodiment comprises the following steps:

[0039] In step one, the raw materials are weighed according to the weight parts:

[0040] In step two, the zirconium silicate, the whisker adjusting agent, and the flaky talc powder are stirred and mixed thoroughly to obtain the zirconium silicate for building ceramics.

[0041] Embodiment 1.

[0042] The zirconium silicate for building ceramics in the embodiment comprises zirconium silicate, a whisker adjusting agent, and flaky talc powder; the mass ratio of the zirconium silicate, the whisker adjusting agent, and the flaky talc powder is 2:1:2; and the particle size of the zirconium silicate is 2.5 mm.

[0043] The method for preparing the whisker adjusting agent in the embodiment is as follows:

[0044] The silicon carbide whisker is first heated at 210℃ for 10 min, then cooled to 55℃ at a rate of 2℃ / min, and kept for 5 min;

[0045] The nano-magnesium oxide is placed in a proton irradiation box for treatment, and then the treated nano-magnesium oxide and a chitosan solution are stirred and mixed according to a weight ratio of 2:5 to form a nano-magnesium oxide agent.

[0046] The 4 parts of the heat-treated silicon carbide whisker, 1 part of a nano-silica sol, 2 parts of the nano-magnesium oxide agent, and 8 parts of a yttrium nitrate solution are ball-milled in a ball mill for improvement treatment, and then washed with water and dried to obtain the whisker adjusting agent.

[0047] The yttrium nitrate solution has a mass fraction of 4% in the embodiment.

[0048] The ball-milling speed for the ball-milling improvement treatment in the embodiment is 1000 r / min, and the ball-milling time is 1 h.

[0049] The irradiation power of the proton irradiation box in the embodiment is 300 W, the irradiation time is 10 min, and the mass fraction of the chitosan solution is 2%.

[0050] The preparation method of the sheet-shaped talc powder of the embodiment is as follows:

[0051] The sheet-shaped talc powder is first stirred and mixed in a sufficient amount of hydrochloric acid solution, then washed with water and dried, and then the dried sheet-shaped talc powder is fully mixed with a sufficient amount of potassium permanganate solution, and finally washed with water and dried to obtain the sheet-shaped talc powder;

[0052] The sheet-shaped talc powder is fully mixed by stirring 3 parts of the sheet-shaped talc powder, 1 part of a lanthanum chloride solution with a mass fraction of 5%, 4 parts of a sodium silicate solution, and 0.35 parts of a phosphoric acid buffer solution, and finally washed with water and dried to obtain the sheet-shaped talc powder.

[0053] The mass fraction of the hydrochloric acid solution of the embodiment is 2%; the mass fraction of the potassium permanganate solution is 10%.

[0054] The mass fraction of the sodium silicate solution of the embodiment is 10%; the pH value of the phosphoric acid buffer solution is 5.0.

[0055] The preparation method of the zirconium silicate for building ceramics of the embodiment comprises the following steps:

[0056] Step one: the raw materials are weighed according to the weight parts:

[0057] Step two: the zirconium silicate, the whisker adjusting agent, and the sheet-shaped talc powder are stirred and mixed to obtain the zirconium silicate for building ceramics.

[0058] Embodiment 2.

[0059] The zirconium silicate for building ceramics of the embodiment comprises zirconium silicate, a whisker adjusting agent, and a sheet-shaped talc powder; the mass ratio of the zirconium silicate, the whisker adjusting agent, and the sheet-shaped talc powder is 5:3:2; and the particle size of the zirconium silicate is 2.5 mm.

[0060] The preparation method of the whisker adjusting agent of the embodiment is as follows:

[0061] The silicon carbide whisker is first heat-treated at 230℃ for 15 min, then cooled to 60℃ at a rate of 4℃ / min, and kept at 60℃ for 10 min;

[0062] The nano-magnesium oxide is placed in a proton irradiation box for irradiation treatment, and after the treatment, the treated nano-magnesium oxide and a chitosan solution are stirred and mixed according to a weight ratio of 2:5 to form a nano-magnesium oxide agent;

[0063] The silicon carbide whisker, the nano-silica sol, and the nano-magnesium oxide agent are ball-milled in a ball mill for improvement treatment, and after the ball milling, the mixture is washed with water and dried to obtain the whisker adjusting agent.

[0064] The mass fraction of yttrium nitrate solution in this embodiment is 7%.

[0065] The ball milling speed of the ball milling improved treatment in this embodiment is 1500r / min, and the ball milling time is 2h.

[0066] The irradiation power of the proton irradiation box in this embodiment is 400W, and the irradiation time is 20min; the mass fraction of chitosan solution is 5%.

[0067] The preparation method of the flaky talc powder in this embodiment is:

[0068] The flaky talc powder is first stirred and mixed uniformly in a sufficient amount of hydrochloric acid solution, then washed with water and centrifuged, and then the centrifuged flaky talc powder is mixed uniformly and fully in a sufficient amount of potassium permanganate solution, and finally washed with water and centrifuged to obtain the flaky talc powder;

[0069] 5 parts of the flaky talc powder, 2 parts of a lanthanum chloride solution with a mass fraction of 5%, 8 parts of a sodium silicate solution, and 0.45 parts of a phosphate buffer solution are stirred and mixed uniformly, and finally washed with water and dried to obtain the flaky talc powder.

[0070] The mass fraction of the hydrochloric acid solution in this embodiment is 5%; the mass fraction of the potassium permanganate solution is 15%.

[0071] The mass fraction of the sodium silicate solution in this embodiment is 15%; the pH value of the phosphate buffer solution is 5.5.

[0072] The preparation method of the zirconium silicate for building ceramics in this embodiment comprises the following steps:

[0073] Step one, the raw materials are weighed according to the weight parts:

[0074] Step two, the zirconium silicate, the whisker adjusting agent, and the flaky talc powder are stirred and mixed uniformly to obtain the zirconium silicate for building ceramics.

[0075] Embodiment 3.

[0076] The zirconium silicate for building ceramics in this embodiment comprises zirconium silicate, a whisker adjusting agent, and a flaky talc powder; the mass ratio of the zirconium silicate, the whisker adjusting agent, and the flaky talc powder is 3.5:2:2; and the particle size of the zirconium silicate is 2.5mm.

[0077] The preparation method of the whisker adjusting agent in this embodiment is:

[0078] The silicon carbide whisker is first heat treated at 220℃ for 12.5min, then cooled to 57℃ at a rate of 3℃ / min, and kept at 57℃ for 7.5min;

[0079] The nano magnesium oxide is placed in a proton irradiation box for irradiation treatment, and then the treated nano magnesium oxide and a chitosan solution are stirred and mixed uniformly according to a weight ratio of 2:5 to form a nano magnesium oxide agent;

[0080] The 5.5 parts of the heat-preserved silicon carbide whisker, 2 parts of the nano silicon sol, 3.5 parts of the nano magnesium oxide agent and 10 parts of the yttrium nitrate solution are ball-milled in a ball mill for improvement treatment, and then water-washed and dried to obtain a whisker adjusting agent.

[0081] The mass fraction of the yttrium nitrate solution in the embodiment is 5.5%.

[0082] The ball-milling speed of the ball-milling improvement treatment in the embodiment is 1250 r / min, and the ball-milling time is 1.5 h.

[0083] The irradiation power of the proton irradiation box in the embodiment is 350 W, and the irradiation time is 15 min; and the mass fraction of the chitosan solution is 3.5%.

[0084] The preparation method of the flaky talc powder agent in the embodiment is as follows:

[0085] The flaky talc powder is first stirred and mixed uniformly in a sufficient amount of hydrochloric acid solution, and then water-washed and centrifuged, and then the centrifuged flaky talc powder is mixed uniformly in a sufficient amount of potassium permanganate solution, and finally water-washed and centrifuged to obtain the flaky talc powder agent.

[0086] The 4 parts of the flaky talc powder agent, 1.5 parts of a lanthanum chloride solution with a mass fraction of 5%, 6 parts of a sodium silicate solution and 0.40 parts of a phosphoric acid buffer solution are stirred and mixed uniformly, and finally water-washed and dried to obtain the flaky talc powder agent.

[0087] The mass fraction of the hydrochloric acid solution in the embodiment is 3.5%; and the mass fraction of the potassium permanganate solution is 12.5%.

[0088] The mass fraction of the sodium silicate solution in the embodiment is 12.5%; and the pH value of the phosphoric acid buffer solution is 5.2.

[0089] The preparation method of the zirconium silicate for building ceramics in the embodiment comprises the following steps:

[0090] Step one, the raw materials are weighed according to the weight parts:

[0091] Step two, the zirconium silicate, the whisker adjusting agent and the flaky talc powder agent are stirred and mixed uniformly to obtain the zirconium silicate for building ceramics.

[0092] Comparative Example 1.

[0093] The difference between the embodiment 3 and the comparative example 1 is that the whisker adjusting agent is not added.

[0094] Comparative Example 2.

[0095] The difference from Example 3 is that no nano-magnesium oxide agent is added in the preparation of the whisker adjusting agent.

[0096] Comparative Example 3.

[0097] The difference from Example 3 is that the whisker adjusting agent is prepared by using silicon carbide whiskers and deionized water in a weight ratio of 2:5.

[0098] Comparative Example 4.

[0099] The difference from Example 3 is that no flaky talc agent is added.

[0100] Comparative Example 5.

[0101] The difference from Example 3 is that the preparation method of the flaky talc agent is different; no hydrochloric acid and potassium permanganate solution is used for treatment.

[0102] Comparative Example 6.

[0103] The difference from Example 3 is that the preparation method of the flaky talc agent is different; no lanthanum chloride solution, sodium silicate solution and phosphate buffer solution is used for treatment.

[0104] The products of Examples 1-3 and Comparative Examples 1-6 replace the raw material of zirconium silicate in the antibacterial ceramic glaze and its preparation method and application disclosed in Chinese Patent CN2019113408, and the performance is tested. The test results are as follows: the product is coated with a mixture of oil dirt and dust in a weight ratio of 2:1, and then placed at 38℃ for 6h, and then subjected to wiping treatment. The wiping force is applied to measure the wiping clean of the dirt.

[0105]

[0106] From Examples 1-3 and Comparative Examples 1-6, it is concluded that the product of Example 3 has excellent Escherichia coli antibacterial rate and wiping force performance, and the performance of the prepared product can realize the coordinated improvement of antibacterial durability and easy cleaning.

[0107] Without adding one of the whisker adjusting agent and the flaky talc agent, the performance of the product is obviously deteriorated. By using the two in combination, the performance of the product is significantly improved.

[0108] Without adding the nano-magnesium oxide agent in the preparation of the whisker adjusting agent, using silicon carbide whiskers and deionized water in a weight ratio of 2:5 to prepare the whisker adjusting agent, the preparation method of the flaky talc agent is different; no hydrochloric acid and potassium permanganate solution is used for treatment, the preparation method of the flaky talc agent is different, and no lanthanum chloride solution, sodium silicate solution and phosphate buffer solution is used for treatment. The performance of the product has a deteriorating trend. Only by using the whisker adjusting agent and the flaky talc agent prepared by the method of the present application, the performance of the product is the most significant. Using other methods instead of the present application is not as obvious as the effect of the present application.

[0109] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

[0110] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and a person skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A zirconium silicate for architectural ceramics, characterized by, The building ceramic zirconium silicate comprises zirconium silicate, whisker adjusting agent and flaky talc powder agent; the mass ratio of the zirconium silicate, the whisker adjusting agent and the flaky talc powder agent is (2-5):(1-3):2; wherein the particle size of the zirconium silicate is 2-3 mm; The preparation method of the whisker adjusting agent is as follows: The silicon carbide whisker is first heated at 210-230 DEG C for 10-15 min, then cooled to 55-60 DEG C at a rate of 2-4 DEG C / min, and kept for 5-10 min; The nano-magnesium oxide is irradiated in a proton irradiation box, and then the treated nano-magnesium oxide and chitosan solution are stirred and mixed uniformly according to a weight ratio of 2:5 to form a nano-magnesium oxide agent; The 4-7 parts of the heat-treated silicon carbide whisker, 1-3 parts of nano-silica sol, 2-5 parts of nano-magnesium oxide agent and 8-12 parts of yttrium nitrate solution are ball-milled in a ball mill for improvement treatment, and then water-washed and dried to obtain the whisker adjusting agent; The preparation method of the flaky talc powder agent is as follows: The flaky talc powder is first stirred and mixed uniformly in a sufficient amount of hydrochloric acid solution, then water-washed and centrifuged, and then the centrifuged flaky talc powder is mixed uniformly in a sufficient amount of potassium permanganate solution, and finally water-washed and centrifuged to obtain pretreated flaky talc powder; 3-5 parts of the pretreated flaky talc powder, 1-2 parts of a 5% lanthanum chloride solution and 4-8 parts of a sodium silicate solution and 0.35-0.45 parts of a phosphoric acid buffer solution are stirred and mixed uniformly, and finally water-washed and dried to obtain the flaky talc powder agent.

2. A zirconium silicate for architectural ceramics according to claim 1, characterized in that, The mass fraction of the yttrium nitrate solution is 4-7%.

3. The zirconium silicate according to claim 1, characterized in that, The ball-milling speed of the ball-milling improvement treatment is 1000-1500 r / min, and the ball-milling time is 1-2 h.

4. The zirconium silicate of claim 1, wherein, The irradiation power of the proton irradiation box is 300-400 W, and the irradiation time is 10-20 min; the mass fraction of the chitosan solution is 2-5%.

5. The zirconium silicate according to claim 1, characterized in that, The mass fraction of the hydrochloric acid solution is 2-5%; the mass fraction of the potassium permanganate solution is 10-15%.

6. The zirconium silicate according to claim 1, characterized in that, The mass fraction of the sodium silicate solution is 10-15%; and the pH value of the phosphoric acid buffer solution is 5.0-5.

5.

7. A process for the preparation of zirconium silicate for architectural ceramics as claimed in any one of the claims 1-6, characterized in that, The method comprises the following steps: Step one, the raw materials are weighed according to the weight parts: Step two, the zirconium silicate, the whisker adjusting agent and the flaky talc powder agent are stirred and mixed uniformly to obtain the building ceramic zirconium silicate.

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