CN107032754A - A kind of method that nonaqueous solvents grouting process prepares the high-grade Longquan celadon of high intensity - Google Patents
A kind of method that nonaqueous solvents grouting process prepares the high-grade Longquan celadon of high intensity Download PDFInfo
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Abstract
The invention discloses a kind of method that nonaqueous solvents grouting process prepares the high-grade Longquan celadon of high intensity, comprise the following steps：Organic solvent is measured first as decentralized medium, then a certain amount of dragon's fountain soil is scattered in solvent, add dispersant, organic solvent slip casting slurry is obtained after stirring, through ball grinding stirring to slurry hybrid reaction it is complete after, slurry is aged, injection forming, biscuiting desolvation are handled, the high-grade Longquan celadon of high intensity can be made through heat treatment after glazing.This invention simplifies traditional Longquan celadon into porcelain process technology scheme, low production cost, reaction time is short, traditional grouting process is broken by adding the thinking that aqueous solvent is molded, the surface tension that overcomes water is excessive, the problem of easily cause particle agglomeration in drying process, form hole, the intensity of Longquan celadon is substantially increased, the key issue of the application of restriction Longquan celadon and development is thoroughly solved, has broad application prospects.
Description
Technical field
The present invention relates to technical field of preparation for inorganic material, and in particular to one kind is prepared high using nonaqueous solvents grouting process
The method of intensity top grade Longquan celadon.
Background technology
Glaze is a kind of very thin uniform glass matter layer of be melted in ceramic surface one layer, can improve the surface of base substrate
Performance, improves the performance and artistic value of product.Longquan celadon is with the gentle moulding such as beautiful glaze colours and smooth grace
Receive the favor in market.However, because traditional Longquan celadon preparation technology is complicated and not high into porcelain intensity, causing production cost
Improve, so that market share is relatively low, there is larger difference with the ceramic portion of ground production such as Jiangxi Jing Dezhen, Hunan Liling
Away from.This is unfavorable for the strategic demand of Longquan celadon industry development, and China sets up resource, urgent being essential of energy conservation type society
Ask.Advocated energetically under energy-saving, environmental protection production background in country, urgent need finds a kind of inexpensive, high into porcelain intensity
Longquan celadon preparation method.
At present, people more compel to demand of the Longquan celadon moulding process in terms of quick, inexpensive, high-compactness
Cut, injection forming is the effective ways that industrial mass prepares the complicated Longquan celadon of reliability height, device shape.Obtain it is low into
Originally, the Longquan celadon base substrate of high intensity, it is crucial to prepare low viscosity, the ceramic slurry of high solid volume fraction.Traditional dragon
The aqueous slurries of spring celadon add organic liquid and a small amount of electrolyte form metastable suspension using water as solvent, will
Sucking moisture in suspension injection gypsum mold solidifies base substrate, reaches the purpose of shaping, therefore gets more and more people's extensive concerning,
And be applied successfully in some fields.However, the Longquan celadon base substrate of aqueous slurries injection forming is dehydrating process
In necessarily lead to certain shrinkage factor, and the production time is long, and floor space is big, and model consumption is big.In actual production, ceramic water
Base-material slurry will form the more difficult regulation and control of condition of good suspension sexual satisfaction injection forming, mainly by Brownian movement, Van der Waals force
With the influence of electrostatic dynamic balance, and the formation of hydration shell.When base substrate size is larger, because the moisture of billet surface is waved at first
Hair, shrinks result and blocks in the space originally connected from billet surface, causes the moisture inside base substrate to be difficult to smooth removing.
It is above-mentioned to show, still it is difficult to ensure that during for larger-size Longquan celadon base substrate or relatively low solids in pulp amount in base substrate
The moisture in portion is fully deviate from, and is damaged so that causing to dry with base substrate spalling in sintering process.This is also water base material traditional in recent years
Slurry injection forming technology is difficult to obtain one of major obstacle of high intensity Longquan celadon successful application always.
Propose to prepare Longquan celadon using nonaqueous solvents grouting process for this present invention.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of preparation technology is simple, low production cost, the reaction time
The method that short nonaqueous solvents grouting process prepares the high-grade Longquan celadon of high intensity.
To solve above technical problem, the technical scheme is that：A kind of nonaqueous solvents grouting process prepares high intensity
The method of high-grade Longquan celadon, comprises the following steps：Organic solvent is measured first as decentralized medium, then by a certain amount of dragon
Spring soil is scattered in solvent, adds dispersant, organic solvent slip casting slurry is obtained after stirring, mixed to slurry through ball grinding stirring
Close after reaction completely, slurry is aged, injection forming, biscuiting desolvation are handled, can be made high through heat treatment after glazing
Intensity top grade Longquan celadon.
The dragon's fountain soil is precious small stream china clay, bamboo township china clay, nasal mucus source china clay, Zijin soil or kaolin.
The organic solvent is the organic solvent of 1~4 carbon atom.
The solid content of the organic solvent and dragon's fountain soil is 15~85%.
Described slurry digestion time is 6~24h.
The heat treatment temperature is 1200~1280 DEG C, and soaking time is 0.5~2.5h, and atmosphere is reducing atmosphere.
The heat treatment includes heating and dries, aoxidizes, being incubated, being reduced into porcelain, five steps of insulation by force.
By comparison, innovation of the invention is to break through using the method for traditional water base injection forming or by addition largely
The solid phase methods such as alumina powder, zirconium oxide micro mist improve Longquan celadon into porcelain intensity (rupture strength is about 75~130MPa)
Traditional concept, by adding anhydrous organic matter, using solubility in a solvent it is small the characteristics of make forerunner's precursor reactant, it is not only anhydrous
The consumption of organic matter is far fewer than the consumption of china clay, and solvent can be with recycling.Each group can be realized using non-aqueous solvent method
Divide the uniform mixing in atom level level, be conducive to improving the mobility of slurry；High solid volume fraction slurry is formed, favorably
In improving base substrate compactness, reduce cracking when sintering, deform；Reduce the heat treatment temperature of oxide especially composite oxides
Degree, but raw material and reaction environment requirement height to preparation.Meanwhile, this invention simplifies traditional Longquan celadon into porcelain technology side
Case, Longquan celadon is prepared with nonaqueous solvents grouting process, substantially increases the intensity of Longquan celadon, thoroughly solves restriction dragon's fountain
The key issue that celadon is applied and developed.Whole course of reaction environmental protection, is adapted to industrialized production.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1
The method that the high-grade Longquan celadon of high intensity is prepared using nonaqueous solvents grouting process, is prepared from by following methods,
By following mass percent precise：Precious small stream china clay 13.5%, bamboo township china clay 15.5%, nasal mucus source china clay 14.5%, kaolin
55%, 500mL Glycerol solvents are measured, 0.1gPEG600 dispersants are added, stirring ball-milling is uniform, and slurry is obtained after old 6h；
Base substrate is carried out biscuiting by injection forming into being dried after base substrate at 650 DEG C, obtains biscuit；Glazing, glazing are carried out to biscuit
2~3mm of thickness；After biscuit after glazing is dried, it is fitted into kiln, kiln temperature is warming up to 1200 DEG C with 2 DEG C/min speed,
Glaze firing is carried out at 1200 DEG C of reducing atmosphere, 1.5h is incubated；It is final to obtain the rupture strength that in the present embodiment prepared by nonaqueous solvents
The high-grade Longquan celadon product of 155.5MPa high intensity.
Further, heat treatment includes dry heating, oxidation, is incubated, is reduced into porcelain, five steps of insulation by force in the step
Suddenly, table 1 is the glaze firing Technology for Heating Processing temperature rise period.
Table 1
Embodiment 2
The method that the high-grade Longquan celadon of high intensity is prepared using nonaqueous solvents grouting process, is prepared from by following methods,
By following mass percent precise：Precious small stream china clay 10.8%, bamboo township china clay 20.2%, nasal mucus source china clay 18%, kaolin
50%, 400mL 1,3-BDO is measured, 0.1gPEG600 dispersants are added, after being well mixed, 50 DEG C, stirring are heated to
Slurry is obtained after ball milling, old 24h；Injection forming is into being dried after base substrate；Base substrate is subjected to biscuiting at 750 DEG C,
Obtain biscuit；Glazing, 1~2mm of glazing thickness are carried out to biscuit；After biscuit after glazing is dried, it is fitted into kiln, by kiln temperature
1250 DEG C are warming up to 2 DEG C/min speed, glaze firing is carried out at reducing atmosphere, 1250 DEG C, 1.5h is incubated；Finally obtain this reality
Apply the high-grade Longquan celadon product of rupture strength 154MPa high intensity that in example prepared by nonaqueous solvents.
Further, heat treatment includes dry heating, oxidation, is incubated, is reduced into porcelain, five steps of insulation by force in the step
Suddenly, table 2 is the glaze firing Technology for Heating Processing temperature rise period.
Table 2
Embodiment 3
The method that the high-grade Longquan celadon of high intensity is prepared using nonaqueous solvents grouting process, is prepared from by following methods,
By following mass percent precise：Precious small stream china clay 20.5%, bamboo township china clay 19.6%, nasal mucus source china clay 19.5%, bentonite
38.5%, 450mL isopropanol solvents are measured, 0.2gPVB dispersants are added, after being well mixed, 55 DEG C, stirring ball-milling are heated to
Uniformly, slurry is obtained after old 12h；Injection forming is into being dried after base substrate；Base substrate is subjected to biscuiting at 650 DEG C, obtained
Biscuit；Glazing, 1~2mm of glazing thickness are carried out to biscuit；After biscuit after glazing is dried, it is fitted into kiln, by kiln temperature with 5
DEG C/min speed is warming up to 1270 DEG C, glaze firing is carried out at reducing atmosphere, 1270 DEG C, 2h is incubated；It is final to obtain the present embodiment
The high-grade Longquan celadon product of rupture strength 152.5MPa high intensity prepared by middle nonaqueous solvents.
Further, heat treatment includes dry heating, oxidation, is incubated, is reduced into porcelain, five steps of insulation by force in the step
Suddenly, table 3 is the glaze firing Technology for Heating Processing temperature rise period.
Table 3
Embodiment 4
The method that the high-grade Longquan celadon of high intensity is prepared using nonaqueous solvents grouting process, is prepared from by following methods,
By following mass percent precise：Precious small stream china clay 24%, bamboo township china clay 16.92%, nasal mucus source china clay 36%, kaolin
23%, 550mL glycerine is measured, 0.1g phenolic resin dispersion agent is added, after being well mixed, 50 DEG C are heated to, stirring ball-milling is equal
It is even, obtain slurry after old 24h；Injection forming is into being dried after base substrate；Base substrate is subjected to biscuiting at 700 DEG C, element is obtained
Base；Glazing, 2~3mm of glazing thickness are carried out to biscuit；By after glazing biscuit dry after, be fitted into kiln, by kiln temperature with 2 DEG C/
Min speed is warming up to 1250 DEG C, and glaze firing is carried out at reducing atmosphere, 1250 DEG C, is incubated 1.5h；It is final to obtain in the present embodiment
The high-grade Longquan celadon product of rupture strength 153.8MPa high intensity prepared by nonaqueous solvents.
Further, heat treatment includes dry heating, oxidation, is incubated, is reduced into porcelain, five steps of insulation by force in the step
Suddenly, table 4 is the glaze firing Technology for Heating Processing temperature rise period.
Table 4
Embodiment 5
The method that the high-grade Longquan celadon of high intensity is prepared using nonaqueous solvents grouting process, is prepared from by following methods,
By following mass percent precise：Precious small stream china clay 18%, bamboo township china clay 20%, nasal mucus source china clay 22%, bentonite 38%, amount
700mL anhydrous normal butyl alcohols are taken, 0.1gPEG600 dispersants are added, stirring ball-milling is uniform, and slurry is obtained after old 24h；Slip casting
It is molded into after base substrate and is dried；Base substrate is subjected to biscuiting at 650 DEG C, biscuit is obtained；Glazing, glazing thickness are carried out to biscuit
2~3mm；After biscuit after glazing is dried, it is fitted into kiln, kiln temperature is warming up to 1280 DEG C with 2 DEG C/min speed, also
Primordial Qi atmosphere, glaze firing is carried out at 1280 DEG C, be incubated 0.5h；It is final to obtain the rupture strength that in the present embodiment prepared by nonaqueous solvents
154.7MPa high intensity top grade Longquan celadon product.
Further, heat treatment includes dry heating, oxidation, is incubated, is reduced into porcelain, five steps of insulation by force in the step
Suddenly, table 5 is the glaze firing Technology for Heating Processing temperature rise period.
Table 5
Embodiment 6
The method that the high-grade Longquan celadon of high intensity is prepared using nonaqueous solvents grouting process, is prepared from by following methods,
By following mass percent precise：Precious small stream china clay 22%, bamboo township china clay 18%, nasal mucus source china clay 38%, bentonite 20%, amount
Take 650mL without water glycol, add 0.1gPEG400 dispersants, stirring ball-milling is uniform, and slurry is obtained after old 12h；Note
Slurry, which is molded into after base substrate, to be dried；Base substrate is subjected to biscuiting at 700 DEG C, biscuit is obtained；Glazing is carried out to biscuit, glazing is thick
Spend 2~3mm；After biscuit after glazing is dried, it is fitted into kiln, kiln temperature is warming up to 1260 DEG C with 3 DEG C/min speed,
Reducing atmosphere, glaze firing is carried out at 1260 DEG C, be incubated 1.5h；It is final to obtain the rupture strength that in the present embodiment prepared by nonaqueous solvents
154.6MPa high intensity top grade Longquan celadon product.
Further, heat treatment includes dry heating, oxidation, is incubated, is reduced into porcelain, five steps of insulation by force in the step
Suddenly, table 6 is the glaze firing Technology for Heating Processing temperature rise period.
Table 6
Claims (9)
1. a kind of method that nonaqueous solvents grouting process prepares the high-grade Longquan celadon of high intensity, it is characterised in that including following step
Suddenly：Organic solvent is measured first as decentralized medium, then a certain amount of dragon's fountain soil is scattered in solvent, adds dispersant,
Organic solvent slip casting slurry is obtained after stirring, through ball grinding stirring to slurry hybrid reaction it is complete after, slurry is aged,
Injection forming, the processing of biscuiting desolvation, the high-grade Longquan celadon of high intensity can be made after glazing through heat treatment.
2. the method as described in claim 1, it is characterised in that the dragon's fountain soil is precious small stream china clay, bamboo township china clay, nasal mucus source porcelain
Soil, Zijin soil or kaolin.
3. the method as described in claim 1, it is characterised in that the organic solvent is the organic solvent of 1~4 carbon atom.
4. the method as described in claim 1, it is characterised in that the solid content of the organic solvent and dragon's fountain soil for 15~
85%.
5. the method as described in claim 1, it is characterised in that described slurry digestion time is 6~24h.
6. the method as described in claim 1, it is characterised in that the heat treatment temperature is 1200~1280 DEG C, soaking time
For 0.5~2.5h, atmosphere is reducing atmosphere.
7. method as claimed in claim 6, it is characterised in that the heat treatment is dried including heating up, aoxidized, being incubated, going back by force
It is former into porcelain, five steps of insulation.
8. method according to claim 1, it is characterised in that the slurry is respectively precious small stream porcelain including mass percent
Soil 13.5%, bamboo township china clay 15.5%, nasal mucus source china clay 14.5% and kaolin 55%, in addition to 500mL Glycerol solvents,
0.1gPEG600 dispersants.
9. method as claimed in claim 7, it is characterised in that the process such as following table that the heating is dried：
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| CN113858391A (en) * | 2021-10-27 | 2021-12-31 | 龙泉市尚唐瓷艺发展有限公司 | Formula and preparation device of double-layer heat-insulation Longquan celadon |
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| RU2392248C1 (en) * | 2009-04-02 | 2010-06-20 | Государственное образовательное учреждение высшего профессионального образования "Белгородский государственный технологический университет им. В.Г. Шухова" (БГТУ им. В.Г. Шухова) | Method for production of ceramic slurry |
| CN102060539A (en) * | 2009-11-13 | 2011-05-18 | 中国科学院上海硅酸盐研究所 | Method for preparing yttrium aluminum garnet based transparent ceramic by slip casting |
| CN101885601A (en) * | 2010-06-20 | 2010-11-17 | 景德镇陶瓷学院 | Method for manufacturing medium-temperature Longquan powder celadon |
| CN106478067A (en) * | 2016-10-10 | 2017-03-08 | 丽水学院 | A kind of base the Longquan celadon base substrate of raw ore complete utilization and the preparation method of glaze |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113858391A (en) * | 2021-10-27 | 2021-12-31 | 龙泉市尚唐瓷艺发展有限公司 | Formula and preparation device of double-layer heat-insulation Longquan celadon |
| CN113858391B (en) * | 2021-10-27 | 2022-11-22 | 龙泉市尚唐瓷艺发展有限公司 | Preparation method and preparation device of double-layer heat-insulation Longquan celadon |
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Application publication date: 20170811 |