CN109400214B - A kind of high intensity domestic ceramics prestressing force coating material and preparation method thereof and ceramic - Google Patents
A kind of high intensity domestic ceramics prestressing force coating material and preparation method thereof and ceramic Download PDFInfo
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- CN109400214B CN109400214B CN201811421796.2A CN201811421796A CN109400214B CN 109400214 B CN109400214 B CN 109400214B CN 201811421796 A CN201811421796 A CN 201811421796A CN 109400214 B CN109400214 B CN 109400214B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5035—Silica
Abstract
The invention discloses a kind of high-intensitive domestic ceramics prestressing force coating materials, and by base-material and binder solution according to base-material: binder solution=1g: 4~8mL is formed；The raw material group of the base-material becomes Al2O310~20wt%, SiO245~70wt%, 12~28wt% of MgO, 2~10wt% of ZnO；The binder solution is the solution of one of CMC, PVA, PVB or waterglass or combinations thereof, and concentration is 5~10wt%.The invention also discloses the preparation methods and ceramic of above-mentioned high-intensitive domestic ceramics prestressing force coating material.The present invention is by the way of surface covering, by adjusting optimization coating material proportion, and compression is introduced on ceramic body surface using the processing of coating cladding, to significantly improve the integral strength of ceramics.Advantages of nontoxic raw materials of the present invention is pollution-free, simple for process, is easy to industrial applications and popularization.
Description
Technical field
The present invention relates to coating material technical fields more particularly to a kind of for improving the coating material of domestic ceramics intensity
And preparation method thereof and and ceramic.
Background technique
With the development of the times, people are higher and higher to the performance requirement of ceramic product, in particular, the intensity of ceramic material
People's application requirement growing to ceramic material is can not meet.Ceramics strength is not only the important performance of ceramic material and refers to
Mark, and ceramics enhancing be of great significance to the security reliability of component, be structural ceramics development core and it is daily,
The energy-saving key of construction sanitary ceramic.Therefore, new ceramic material enhancement method is found, ceramic material field is had become
One of hot spot of research.Currently, the enhancing of prior art ceramics mainly increases using densification, the mode of grain refining, or introducing
The mode of strong phase realizes the raising of ceramic material intensity, although achieving certain achievement, but still is difficult to large-scale popularization application,
Difficulty has new breakthrough.
Prestressing force is a kind of to improve structure military service performance, to apply in advance in material manufacturing process to material members
The compression added, this pre-compression stress, which makes material members that can partially or completely offset plus load during service, to be caused
Tensile stress finally avoid the structure of material from being destroyed to increase substantially the strength of materials.Prestressing technique is commonly used at present
In concrete structure and tempered glass (prestressed glass) field, how to apply and realize the enhancing of ceramic product, be current urgency
The project that need to be studied, at the same also can development to ceramic material and application bring important impetus.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of high-intensitive domestic ceramics prestressing force coating materials
Material uses the mode of surface covering to provide prestressing force for ceramics based on ceramic forced breakage principle, ceramic strong to significantly improve
Degree.Another object of the present invention is to provide the preparation methods and ceramic system of above-mentioned high-intensitive domestic ceramics prestressing force coating material
Product.
The purpose of the present invention is achieved by the following technical programs:
A kind of high-intensitive domestic ceramics prestressing force coating material provided by the invention, by base-material and binder solution according to base
Material: binder solution=1g: 4~8mL composition；The raw material group of the base-material becomes Al2O310~20wt%, SiO245~
12~28wt% of 70wt%, MgO, 2~10wt% of ZnO；The binder solution is one in CMC, PVA, PVB or waterglass
The solution of kind or combinations thereof, concentration are 5~10wt%.
Another object of the present invention is achieved by the following technical programs:
The preparation method of above-mentioned high-intensitive domestic ceramics prestressing force coating material provided by the invention, comprising the following steps:
(1) preparation of base-material
Ingredient is formed by the raw material, after wet ball grinding, sieving, drying, is calcined, is crushed after cooling, sieving, i.e.,
Obtain base-material；
(2) preparation of binder solution
One of described CMC, PVA, PVB or waterglass or combinations thereof are added in dehydrated alcohol or deionized water, it is soft
After change processing, heating water bath is stirred to binder and is completely dissolved, and after standing, obtains binder solution；
(3) preparation of coating material
After the base-material and binder solution are mixed in the ratio, magnetic agitation is uniformly mixed, and after sieving, is obtained
Coating material.
Further, coating material preparation method of the present invention is forged at a temperature of 1150~1200 DEG C in the step (1)
It burns, heating rate is 3~5 DEG C/min, and soaking time is 0.5~1.5h.Step (2) the sofening treatment time is 10~12h；
Time of repose is 10~15min.60~90min of magnetic agitation in the step (3) obtains coating material after crossing 250 meshes
Material.
A kind of high-intensitive ceramic ware for daily use provided by the invention, by household ceramic blank and the table being coated on
Finishing coat is constituted；The surface covering is formed by above-mentioned coating material.
The preparation method of above-mentioned high-intensitive ceramic ware for daily use provided by the invention, comprising the following steps:
(1) full painting way is used, the coating material is uniformly painted on to each surface of household ceramic blank, is obtained
Surface coats cated green body；
(2) after described cated its surface slurry of green body of coating is completely dried, calcination processing is carried out, room is naturally cooled to
Wen Hou obtains high-intensitive ceramic ware for daily use.
Further, ceramic preparation method of the present invention, the coating thickness of step (1) coating are 100~800 μ
m.For the step (2) in 1260~1320 DEG C of temperature lower calcinations, heating rate is 3~5 DEG C/min, keeps the temperature 2~3h.
The invention has the following advantages:
(1) coating material of the present invention uses Al2O3-SiO2- MgO-ZnO system, by adjusting optimizing raw material proportion, control
Difference between coating and green body between thermal expansion coefficient, elasticity modulus, and using coating cladding processing on ceramic body surface
Compression is introduced, coating is made to apply certain compression to ceramic body, is broken with offsetting ceramic body when by external load
Split the tensile stress of generation, thus significantly improve ceramics integral strength (flexural strength of ceramic reaches 100~
120MPa improves 85% or more).
(2) present invention can reduce the melting temperature of ceramic coating, to facilitate by addition ZnO as fluxing agent
Reduce sintering temperature, energy saving, while the mechanical property, elasticity, glossiness etc. that coating can also be improved.
(3) advantages of nontoxic raw materials of the present invention is pollution-free, environmentally friendly, whole preparation process green cleanliness without any pollution；And work
Skill is simple and easy, and low in raw material price is easy to industrial applications and popularization.
Detailed description of the invention
Below in conjunction with embodiment and attached drawing, the present invention is described in further detail:
Fig. 1 is the XRD analysis figure of high-intensitive its surface covering of ceramic ware for daily use prepared by the embodiment of the present invention one；
Fig. 2 is the profile scanning electron microscopic picture of high-intensitive ceramic ware for daily use prepared by the embodiment of the present invention one.
Specific embodiment
Embodiment one:
1, a kind of high-intensitive domestic ceramics prestressing force coating material of the present embodiment, by base-material and binder solution according to base-material
: binder solution=1g: 5mL composition；Wherein, the raw material group of base-material becomes Al2O316wt%, SiO258wt%, MgO
22wt%, ZnO 4wt%；Binder solution is the ethanol solution of PVB, concentration 5wt%.
2, the preparation method of above-mentioned high-intensitive domestic ceramics prestressing force coating material, its step are as follows:
(1) preparation of base-material
Ingredient is formed by above-mentioned raw materials, after wet ball grinding 30min, excessively 200 meshes, drying, is forged at a temperature of 1150 DEG C
It burns, heating rate is 4 DEG C/min, soaking time 0.5h, and 250 meshes were crushed after cooling to get base-material is arrived；
(2) preparation of binder solution
5g PVB is added in 100g dehydrated alcohol, after sofening treatment 12h, heating water bath is stirred to PVB and is completely dissolved, quiet
15min is set, binder solution is obtained；
(3) preparation of coating material
After above-mentioned base-material is mixed according to the above ratio with binder solution, the magnetic agitation 60min under 300r/min rate,
After crossing 250 meshes, the coating material that suspension is good, stability is good is obtained.
3, a kind of high-intensitive ceramic ware for daily use of the present embodiment by high temperature household ceramic blank and is coated on
Surface covering is constituted.Preparation method is as follows:
(1) full painting way is used, above-mentioned coating material is uniformly painted on the high temperature household ceramic blank of biscuiting
Each surface obtains surface and coats cated green body, and the coating thickness of coating is 250 μm；
(2) it after its surface slurry of the cated green body of above-mentioned coating is completely dried, is warming up in high temperature furnace with 5 DEG C/min
1300 DEG C are sintered, heat preservation 2h, after cooled to room temperature, obtain high-intensitive ceramic ware for daily use.
As shown in Figure 1, its principal crystalline phase of coating after firing is pyroxene, cordierite, quartz；And coating is tightly combined with green body
(see Fig. 2).
Embodiment two:
The present embodiment and embodiment one the difference is that:
1, the present embodiment coating material, by base-material and binder solution according to base-material: binder solution=1g: 6mL is formed；
Wherein, the raw material group of base-material becomes Al2O312.5wt%, SiO262.5wt%, MgO 21wt%, ZnO 4wt%；Binder
Solution is the deionized water solution of PVA.
2, in the preparation method of the present embodiment coating material, step (1) calcination temperature be 1180 DEG C, heating rate be 5 DEG C/
Min, soaking time 1h；Step (2) the sofening treatment time is 10h.
3, a kind of high-intensitive ceramic ware for daily use of the present embodiment, preparation method coating thickness are 200 μm；Sintering temperature
It is 1280 DEG C, soaking time 2.5h.
Embodiment three:
The present embodiment and embodiment one the difference is that:
1, the present embodiment coating material, by base-material and binder solution according to base-material: binder solution=1g: 7mL is formed；
Wherein, the raw material group of base-material becomes Al2O316wt%, SiO260wt%, MgO 20wt%, ZnO 4wt%；Binder solution
For the deionized water solution of PVA.
2, in the preparation method of the present embodiment coating material, step (1) calcination temperature be 1190 DEG C, heating rate be 3 DEG C/
Min, soaking time 1.5h；Step (2) the sofening treatment time is 11h.
3, a kind of high-intensitive ceramic ware for daily use of the present embodiment, preparation method coating thickness are 280 μm；Sintering temperature
It is 1300 DEG C, heating rate is 4 DEG C/min, soaking time 2h.
Example IV:
The present embodiment and embodiment one the difference is that:
1, the present embodiment coating material, by base-material and binder solution according to base-material: binder solution=1g: 7mL is formed；
Wherein, the raw material group of base-material becomes Al2O312.5wt%, SiO262.5wt%, MgO 21wt%, ZnO 4wt%；Binder is molten
Liquid is the ethanol solution of PVB.
2, in the preparation method of the present embodiment coating material, step (1) calcination temperature be 1200 DEG C, heating rate be 5 DEG C/
Min, soaking time 1h.
3, a kind of high-intensitive ceramic ware for daily use of the present embodiment, preparation method coating thickness are 160 μm；Sintering temperature
It is 1280 DEG C, heating rate is 4 DEG C/min, soaking time 2.5h.
As a comparison case with the high temperature household ceramic blank of the biscuiting of uncoated coating material of the embodiment of the present invention.It is based on
Long 40mm × wide 10mm × thickness 5mm dimensions strip, is measured using line-of-sight course, utilizes model XXW mechanics electronic universal
Experimental machine is tested, the preparation-obtained high-intensitive ceramic ware for daily use of various embodiments of the present invention and corresponding each comparative example
Flexural strength it is as shown in table 1.
Ceramic intensity obtained by 1 various embodiments of the present invention of table and its increase effect
Claims (9)
1. a kind of high intensity domestic ceramics prestressing force coating material, it is characterised in that: by base-material and binder solution according to base-material:
Binder solution=1g: 4~8mL composition；The raw material group of the base-material becomes Al2O3 10~20wt%, SiO2 45~70wt%,
12~28wt% of MgO, ZnO 2~10wt%, each raw material composition through ingredient, wet ball grinding, sieving, drying, calcining and obtain base
Material；The binder solution is that dehydrated alcohol or deionized water is added in one of CMC, PVA, PVB or waterglass or combinations thereof
In softened processing, heating water bath stir to binder the solution for being completely dissolved and being formed, concentration is 5~10wt%.
2. the preparation method of high intensity domestic ceramics prestressing force coating material described in claim 1, it is characterised in that including following
Step:
(1) preparation of base-material
Ingredient is formed by the raw material, after wet ball grinding, sieving, drying, is calcined, is crushed, is sieved to get arriving after cooling
Base-material；
(2) preparation of binder solution
One of described CMC, PVA, PVB or waterglass or combinations thereof are added in dehydrated alcohol or deionized water, at softening
After reason, heating water bath is stirred to binder and is completely dissolved, and after standing, obtains binder solution；
(3) preparation of coating material
After the base-material and binder solution are mixed in the ratio, magnetic agitation is uniformly mixed, after sieving, the painting that obtains
Layer material.
3. the preparation method of high intensity domestic ceramics prestressing force coating material according to claim 2, it is characterised in that: institute
It states in 1150~1200 DEG C of temperature lower calcinations in step (1), heating rate is 3~5 DEG C/min, and soaking time is 0.5~1.5h.
4. the preparation method of high intensity domestic ceramics prestressing force coating material according to claim 2, it is characterised in that: institute
Stating step (2) the sofening treatment time is 10~12h；Time of repose is 10~15min.
5. the preparation method of high intensity domestic ceramics prestressing force coating material according to claim 2, it is characterised in that: institute
60~90min of magnetic agitation in step (3) is stated, after crossing 250 meshes, obtains coating material.
6. a kind of high intensity ceramic ware for daily use, it is characterised in that: applied by household ceramic blank and the surface being coated on
Layer is constituted；Surface covering coating material as described in claim 1 is formed.
7. the preparation method of high intensity ceramic ware for daily use described in claim 6, it is characterised in that the following steps are included:
(1) full painting way is used, the coating material is uniformly painted on to each surface of household ceramic blank, obtains table
Face coats cated green body；
(2) after described cated its surface slurry of green body of coating is completely dried, calcination processing, cooled to room temperature are carried out
Afterwards, high-intensitive ceramic ware for daily use is obtained.
8. the preparation method of high intensity ceramic ware for daily use according to claim 7, it is characterised in that: the step (1)
The coating thickness of floating coat is 100~800 μm.
9. the preparation method of high intensity ceramic ware for daily use according to claim 7, it is characterised in that: the step (2)
In 1260~1320 DEG C of temperature lower calcinations, heating rate is 3~5 DEG C/min, keeps the temperature 2~3h.
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| CN110759714B (en) * | 2019-11-04 | 2022-08-23 | 景德镇陶瓷大学 | High-performance domestic ceramic for dish washer and preparation method thereof |
| CN110759715B (en) * | 2019-11-04 | 2022-08-23 | 景德镇陶瓷大学 | Drop-resistant prestress reinforced thin-walled ceramic and preparation method thereof |
| CN112047757A (en) * | 2020-09-09 | 2020-12-08 | 中国建筑材料科学研究总院有限公司 | Low-shrinkage coating material for forming compressive stress on surface of ceramic blank, preparation method of low-shrinkage coating material and ceramic product |
| CN112390627B (en) * | 2020-11-20 | 2022-06-17 | 广东大角鹿新材料有限公司 | Kyanite/alumina prestressed ceramic and preparation method thereof |
| CN113264783B (en) * | 2021-07-20 | 2021-11-02 | 佛山市东鹏陶瓷发展有限公司 | Prestressed ceramic and preparation method thereof |
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| CN102786298B (en) * | 2012-08-22 | 2013-10-09 | 湖南仙凤瓷业有限公司 | Magnesian ceramic blank, magnesian ceramic and preparation method thereof |
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