CN110483073B - Ceramic body reinforcing agent, and preparation method and application thereof - Google Patents
Ceramic body reinforcing agent, and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a ceramic body reinforcing agent, which comprises the following components in parts by weight: 3-15 parts of carboxymethyl cellulose, 13-25 parts of sodium tripolyphosphate, 4-12 parts of sodium silicate, 5-20 parts of bentonite and 40-73 parts of wollastonite. The ceramic body reinforcing agent can obviously improve the wet body strength of a ceramic body with high barren material content; the raw materials can be ball-milled together with the raw materials of the ceramic green body, so that the raw materials are fully and uniformly mixed, and the uniformity of the strength of the wet body is further ensured; the raw materials are easy to obtain, the cost is low, the environment is friendly, the production cost of ceramic products is not obviously improved, the adding and using process is very simple, and the industrial production can be realized. Meanwhile, the invention also provides a preparation method and application of the ceramic body reinforcing agent.
Description
Technical Field
The invention relates to the field of wet blank reinforcing agents, in particular to a ceramic blank reinforcing agent, and a preparation method and application thereof.
Background
China is a big country for ceramic production and use, and the continuous production of daily ceramic and architectural ceramic is the first in the world for several years. The ceramic industry, as a resource-consuming household, has resulted in a growing decrease in scarce resources such as black mud in agricultural fields, which are non-renewable or long-term resources, and the cost of sacrificing the environment is not cost-effective in pursuing rapid development of economy. Under the large background of energy conservation and consumption reduction, the production of ceramics gradually develops towards the direction of low cost, low energy consumption and high performance. As is known, high-quality clay such as black mud has an excellent effect on increasing the strength of a ceramic body as a ceramic raw material, but the black mud is an important nutrient source of farmlands and is strictly mined by the nation. Therefore, the use amount of high-quality clay such as black mud is gradually reduced and the use amount of barren materials is gradually increased in the ceramic production. After the use amount of the high-quality clay is reduced, the strength of a ceramic wet blank is too low, and the wet blank is broken in the carrying process, so that the yield is low, and the production efficiency is influenced. The prior art still uses more than 25 percent of high-quality clay for the ceramic body even if the reinforcing agent is added, so further research and improvement are needed.
Disclosure of Invention
Based on the above, the invention aims to overcome the defects of the prior art and provide a ceramic body reinforcing agent which can effectively improve the strength of a ceramic wet body containing barren materials and improve the performance of the ceramic.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a ceramic body reinforcing agent comprises the following components in parts by weight: 3-15 parts of carboxymethyl cellulose, 13-25 parts of sodium tripolyphosphate, 4-12 parts of sodium silicate, 5-20 parts of bentonite and 40-73 parts of wollastonite.
In the ceramic body reinforcing agent of the invention, the raw materials have the following functions: wollastonite and carboxymethyl cellulose have good cohesiveness, and are respectively beneficial to improving the strength of a ceramic wet blank and a ceramic dry blank; the bentonite has good suspension property and dispersibility, and is used as a suspending agent of a system in the preparation of the reinforcing agent; sodium tripolyphosphate and sodium silicate are used as water reducing agents to reduce the viscosity of the slurry and improve the fluidity of the slurry.
Preferably, the bentonite has a chemical composition of: SiO 22 62.44～66.58％、Al2O3 18.32～19.88％、Fe2O3 2.79～3.56％、CaO 0.36～0.48％、MgO 1.99～2.46％、K2O 0.99～1.43％、Na21.22 to 1.77 percent of O and TiO20.07-0.12%, and the loss on ignition of the bentonite is 4.95-6.12%.
Preferably, the wollastonite has a chemical composition of: SiO 22 49.21～52.11％、Al2O3 0.19～0.29％、Fe2O3 0.13～0.19％、CaO 40.67～45.88％、MgO 1.22～1.55％、K20.02-0.04% of O and Na20.03-0.05% of O; the burning loss rate of the wollastonite is 2.01-3.10%.
More preferably, the wollastonite has a density of 2.63 to E2.89g/cm3The hardness of the wollastonite is 4.7-4.9, and the fineness of the wollastonite is 80-120 meshes.
Meanwhile, the invention also provides a preparation method of the ceramic body reinforcing agent, which comprises the following steps: and uniformly mixing the components, ball-milling, sieving and drying to obtain the ceramic body reinforcing agent.
Preferably, the parameters of the ball milling are as follows: the ball milling time is 8-20 min, the ball material ratio is (2-3): 1, the water adding amount is 30-50%, and the rotating speed of the ball mill is 300-450 r/min; the drying temperature is 100-200 ℃, and the drying time is 1-2 h.
In addition, the invention also provides an application method of the ceramic body reinforcing agent, which comprises the following steps: and adding the ceramic body reinforcing agent, the ceramic green body raw material and water into a ball mill for grinding, wherein the ball-to-material ratio is (2-3): 1, the water addition amount is 45-50 wt%, and the ball milling time is 10-15 min.
Preferably, the ceramic body reinforcing agent accounts for 2-6% of the weight of the ceramic body raw material.
More preferably, the ceramic body reinforcing agent accounts for 2-4% of the weight of the ceramic body raw material.
Preferably, the ceramic green body raw material consists of the following raw materials in parts by weight: 30.2-34.7 parts of quartz, 3.5-5.1 parts of Yonghan potassium sand, 3.3-5.9 parts of Xianyuan sodium potassium sand, 3.6-4.8 parts of slender stone powder, 3.9-5.4 parts of terrazzo sodium powder, 29.6-34.6 parts of fusion cakes and 12.4-16.3 parts of plastic clay. The formulation of the invention is mainly characterized by low plastic clay content.
Preferably, the ceramic green body raw material has a chemical composition of: SiO 22 65.22～75.51％、Al2O3 12.21～15.16％、Fe2O3 0.04～0.08％、CaO 5.34～7.92％、MgO 1.02～1.58％、K20.74-0.98% of O and Na20.98-1.55% of O and 2.21-3.34% of loss on ignition.
Compared with the prior art, the invention has the beneficial effects that:
(1) the reinforcing agent can obviously improve the wet blank strength of the ceramic blank body with high barren material content;
(2) the reinforcing agent can be ball-milled with ceramic green body raw materials, so that the raw materials are fully and uniformly mixed, and the uniformity of the strength of a wet body is further ensured;
(3) the reinforcing agent has the advantages of easily available raw materials, low cost, environmental friendliness, no obvious improvement on the production cost of ceramic products, simple addition and use process and capability of realizing industrial production.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
The invention is provided with embodiments 1-3 and comparison groups 1-3, and the weight parts of each component in the specific embodiments 1-3 and the comparison groups 1-3 are shown in table 1, wherein, bentonite is purchased from Boer ceramics science and technology Limited company in Fushan City, and the chemical composition is as follows: SiO 2262.44～66.58％、Al2O3 18.32～19.88％、Fe2O3 2.79～3.56％、CaO 0.36～0.48％、MgO 1.99～2.46％、K2O 0.99～1.43％、Na2O 1.22～1.77％、TiO20.07-0.12%, and the ignition loss rate is 4.95-6.12%; wollastonite is purchased from Sanshuibao high inorganic materials Co., Ltd, in Foshan city, and has the chemical composition: SiO 22 49.21～52.11％、Al2O3 0.19～0.29％、Fe2O3 0.13～0.19％、CaO 40.67～45.88％、MgO 1.22～1.55％、K2O 0.02～0.04％、Na20.03-0.05% of O; the ignition loss rate is 2.01-3.10%:
TABLE 1 EXAMPLES 1 TO 3 AND COMPARATIVE GROUPS 1 to 3, each having the component content
The preparation method of the reinforcing agent comprises the following steps: weighing the components according to a certain proportion, uniformly mixing, adding the mixture into a ball milling tank, ball milling for 8-20 min, wherein the ball-material ratio is 2:1, the water addition amount is 30-50%, the rotating speed of the ball mill is 450r/min, sieving the slurry after ball milling through a 80-mesh sieve, and drying for 1-2 h at 100-200 ℃ to obtain the reinforcing agent.
The prepared reinforcing agent is applied to a raw material formula of a ceramic green body with high barren material content, and the ceramic green body consists of the following raw materials in parts by weight: 30.2-34.7 parts of quartz, 3.5-5.1 parts of Yonghan potassium sand, 3.3-5.9 parts of Xianyuan sodium potassium sand, 3.6-4.8 parts of slender stone powder, 3.9-5.4 parts of terrazzo sodium powder, 29.6-34.6 parts of fusion cakes and 12.4-16.3 parts of plastic clay.
The ceramic green body comprises the following raw materials in percentage by weight: SiO 22 65.22～75.51％、Al2O3 12.21～15.16％、Fe2O3 0.04～0.08％、CaO 5.34～7.92％、MgO 1.02～1.58％、K2O 0.74～0.98％、Na20.98-1.55% of O and 2.21-3.34% of loss on ignition.
Adding the ceramic body reinforcing agent, a ceramic green body raw material and water into a ball mill for grinding, wherein the ball-material ratio is 2:1, the water addition amount is 45-50 wt%, the ball milling time is 15min, after the mixture is sieved by a 60-mesh sieve, the mixture is dried in an oven, then 5% of water is added, the mixture is sieved by the 60-mesh sieve for granulation to obtain granulation powder, the granulation powder is formed on a test press at the pressure of 10Mpa to obtain a sample of 40 multiplied by 70 multiplied by 5mm, and then a three-point bending resistance instrument is adopted to test the wet-body bending resistance of the sample.
And drying the wet ceramic blank at 150 ℃ for 2h, and testing the breaking strength of the dry blank of the sample by using a three-point anti-breaking instrument.
Meanwhile, 4-6 comparison groups are set, in the 4-6 comparison groups, the reinforcing agents in the embodiment 1 are respectively replaced by polyvinyl alcohol, bentonite and lignin which are commonly used at present, and the using amount of the commonly used reinforcing agents is 2% of the dry basis weight of the ceramic green body material; then, the performance of the test piece was tested in the same manner as described above, and the specific test results are shown in table 2.
TABLE 2
As is clear from Table 2, the reinforcing agents of examples 1 to 3 had better slurry fluidity and green strength than those of control groups 1 to 6. Meanwhile, as can be seen from the experimental data in example 1, as the reinforcing agent in example 1 increases from 0 to 4 wt%, the strength of the ceramic wet green increases from 0.15MPa to 0.51 MPa; when the addition amount of the reinforcing agent is continuously increased to 6 wt%, the strength of the ceramic wet blank is not greatly changed, but the fluidity of the ceramic slurry is greatly reduced; as can be seen from the control 1, the strength of the ceramic dry blank is reduced without using carboxymethyl cellulose in the reinforcing agent, but the strength of the wet blank is not obviously changed; as can be seen from the comparison group 2, wollastonite is not used as the reinforcing agent, so that the strength of the ceramic wet blank is obviously reduced; it can be seen from control 3 that the sodium tripolyphosphate and sodium silicate in the raw materials used in the reinforcing agent can effectively improve the fluidity of the ceramic slurry. Meanwhile, compared with the control groups 4-6, the strength of the ceramic wet blank is not greatly influenced by common reinforcing agents such as polyvinyl alcohol, bentonite and lignin; compared with the common reinforcing agent, the reinforcing agent in the embodiments 1 to 3 of the invention has little influence on the strength of the dry ceramic blank, and the dry blank strength is about 3.2 MPa.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The application of the ceramic body reinforcing agent is characterized in that the ceramic body reinforcing agent comprises the following components in parts by weight: 3-15 parts of carboxymethyl cellulose, 13-25 parts of sodium tripolyphosphate, 4-12 parts of sodium silicate, 5-20 parts of bentonite and 40-73 parts of wollastonite;
the amount of the ceramic body reinforcing agent is 2-6% of the weight of the ceramic green body raw material;
the ceramic green body raw material comprises the following raw materials in parts by weight: 30.2-34.7 parts of quartz, 3.5-5.1 parts of Yonghan potassium sand, 3.3-5.9 parts of Xianyuan sodium potassium sand, 3.6-4.8 parts of slender stone powder, 3.9-5.4 parts of terrazzo sodium powder, 29.6-34.6 parts of fusion cakes and 12.4-16.3 parts of plastic clay;
the density of the wollastonite is 2.63-2.89 g/cm3The hardness of the wollastonite is 4.7-4.9, and the fineness of the wollastonite is 80-120 meshes;
the application method of the ceramic body reinforcing agent comprises the following steps: adding the ceramic body reinforcing agent, the ceramic green body raw material and water into a ball mill for grinding, wherein the ball-material ratio is 2:1, the water addition amount is 45-50 wt%, the ball milling time is 15min, after the mixture is sieved by a 60-mesh sieve, the mixture is dried in an oven, then 5% of water is added, the mixture is sieved by the 60-mesh sieve for granulation to obtain granulation powder, and the granulation powder is molded on a test press at the pressure of 10MPa to obtain a wet blank.
2. The use of a ceramic body enhancer as claimed in claim 1, wherein the ceramic body enhancer is prepared by a method comprising: and uniformly mixing the components, ball-milling, sieving and drying to obtain the ceramic body reinforcing agent.
3. The use of a ceramic body enhancer as claimed in claim 2, wherein the ball milling parameters are: the ball milling time is 8-20 min, the ball material ratio is (2-3): 1, the water adding amount is 30-50%, and the rotating speed of the ball mill is 300-450 r/min; the drying temperature is 100-200 ℃, and the drying time is 1-2 h.
4. Use of a ceramic body strengthening agent according to claim 1, wherein the bentonite has a chemical composition of: SiO 22 62.44～66.58％、Al2O3 18.32～19.88％、Fe2O3 2.79～3.56％、CaO0.36～0.48％、MgO 1.99～2.46％、K2O 0.99～1.43％、Na21.22 to 1.77 percent of O and TiO20.07-0.12%, the loss on ignition of the bentonite is4.95～6.12％。
5. Use of ceramic body reinforcer according to claim 1, wherein the wollastonite has a chemical composition of: SiO 2249.21～52.11％、Al2O30.19～0.29％、Fe2O30.13～0.19％、CaO40.67～45.88％、MgO1.22～1.55％、K20.02-0.04% of O and Na20.03-0.05% of O; the burning loss rate of the wollastonite is 2.01-3.10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910885515.7A CN110483073B (en) | 2019-09-18 | 2019-09-18 | Ceramic body reinforcing agent, and preparation method and application thereof |
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| CN111393134A (en) * | 2020-02-19 | 2020-07-10 | 佛山市山有海科技有限公司 | Silicate system-based modified bentonite body reinforcing agent |
| CN112573929B (en) * | 2020-12-28 | 2023-03-10 | 山东龙港硅业科技有限公司 | Composite ceramic water reducing agent and ceramic application thereof |
| CN114213133B (en) * | 2021-12-29 | 2023-04-25 | 亚细亚建筑材料股份有限公司 | Additive for improving green strength and preparation method and application thereof |
| CN114349473A (en) * | 2022-01-20 | 2022-04-15 | 邱林铿 | Preparation method of environment-friendly functional ceramic |
| CN114716230B (en) * | 2022-06-10 | 2022-09-13 | 广东简一(集团)陶瓷有限公司 | Ceramic tile with high toughness and preparation method thereof |
| CN116768599A (en) * | 2023-06-15 | 2023-09-19 | 东莞市唯美陶瓷工业园有限公司 | Reinforcing slurry for improving strength of ceramic blank, and preparation method and application thereof |
| CN116813356B (en) * | 2023-07-22 | 2024-04-19 | 佛山市奥林万达新型建材有限公司 | Ceramic body reinforcing agent and preparation method thereof |
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| EP0992467A2 (en) * | 1998-10-01 | 2000-04-12 | Corning Incorporated | Production of porous mullite bodies |
| CN101634184A (en) * | 2009-05-31 | 2010-01-27 | 广东蒙娜丽莎陶瓷有限公司 | Large-sized ultra-thin stoneware-quality tiles and preparation method thereof |
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| CN102584253B (en) * | 2012-02-15 | 2013-09-11 | 广东道氏技术股份有限公司 | Ceramic green body reinforcing agent and application thereof |
| CN103420680A (en) * | 2013-07-30 | 2013-12-04 | 北京工业大学 | Ceramic body reinforcing agent and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0992467A2 (en) * | 1998-10-01 | 2000-04-12 | Corning Incorporated | Production of porous mullite bodies |
| CN101634184A (en) * | 2009-05-31 | 2010-01-27 | 广东蒙娜丽莎陶瓷有限公司 | Large-sized ultra-thin stoneware-quality tiles and preparation method thereof |
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