CN114573345A - Preparation method and application of perovskite type high-entropy high-emissivity ceramic coating film coating liquid - Google Patents

Preparation method and application of perovskite type high-entropy high-emissivity ceramic coating film coating liquid Download PDF

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CN114573345A
CN114573345A CN202210293737.1A CN202210293737A CN114573345A CN 114573345 A CN114573345 A CN 114573345A CN 202210293737 A CN202210293737 A CN 202210293737A CN 114573345 A CN114573345 A CN 114573345A
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entropy
emissivity
coating liquid
ceramic coating
parts
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CN114573345B (en
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张宗涛
张春辉
陈云翔
吴碧华
张聪
刘易斐
邵家硕
宋美璇
姚思羽
刘今霄
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Zhengzhou University
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Abstract

The invention provides a preparation method and application of a perovskite high-entropy high-emissivity ceramic coating film coating liquid, wherein the perovskite high-entropy high-emissivity ceramic coating film coating liquid comprises the following components in parts by weight: 10.00-70.00 parts of phosphate binder, 5.00-50.00 parts of sol binder, 10.00-80.00 parts of filler, 1.00-50.00 parts of assistant and 10.00-60.00 parts of solvent; the filler is made of ZnO, CaO, CuO, MgO, NiO, SrO and ZrO2、TiO2、MnO2、CeO2、HfO2、Fe2O3、Co2O3、Cr2O3、Al2O3、Y2O3、La2O3、Nd2O3Five or more oxides are used to prepare the perovskite type high-entropy high-emissivity ceramic powder. The invention focuses on the high entropy effect of the ceramic, so that the ceramic coating has higher strength and thermal/chemical stability, can be widely applied to high temperature fields such as high temperature kilns, boilers, metal wall surfaces and the like, and realizes the preparation of the coating with low cost and high energy-saving efficiency.

Description

Preparation method and application of perovskite type high-entropy high-emissivity ceramic coating film coating liquid
Technical Field
The invention belongs to the technical field of energy conservation of functional coatings, and particularly relates to a perovskite type high-entropy high-emissivity ceramic coating film coating liquid and a preparation method and application thereof.
Background
The industrial kiln is key equipment for industrial heating, and is energy consumption equipment at the same time. In the kiln (above 800 ℃), the heat transfer is mainly radiation and heat conduction, especially radiation heat transfer, and the heat transfer occupies a larger and larger proportion as the temperature increases. In China, the energy consumption of industrial kilns accounts for about 25% of the total national energy consumption, and the average thermal efficiency of the kilns is less than 30%, so that the improvement of the energy utilization rate of the kilns is particularly important. Under the condition of high temperature, heat radiation is mainly carried out in a near infrared wave band, and the emissivity of the inner wall of the kiln in the wave band is low, so that heat cannot be effectively radiated into a hearth, and heat energy cannot be fully utilized. Aiming at the problem, the inner wall of the kiln is coated with the high-emissivity infrared coating, more heat is transferred to the hearth through the radiation effect of the high-emissivity infrared coating, the heat exchange is accelerated, the heat utilization rate can be effectively improved, and the purpose of saving energy is achieved.
The transition metal oxide generally has a relatively high emissivity, and particularly, the emissivity of the transition metal oxide is close to that of a black body after being synthesized at a high temperature. Discrimination is made with SiO2、Fe2O3、Cr2O3、MnO2Preparing base powder by solid-phase high-temperature sintering, mixing with binder, and ball-milling to obtain high-temperature infrared radiation energy-saving SiO paint2-Fe2O3-Cr2O3-MnO2The coating has the highest infrared radiance of 0.93 in the whole wave band. Zhang et al codoped La with Ca, Fe, Sr and Mn respectively2Ce2O7The high-emission coating is obtained, and the infrared emission degree is increased along with the increase of the doping amount and the increase of the doping temperature. At 1000 deg.C, La2-xSrxCe2-xMnxO7+δHas an infrared emissivity of at most 0.97. However, because of the high thermal expansion coefficient of the material, the material is easy to expand and crack under the action of high-temperature thermal shock, and the service life and the emissivity are influenced. Therefore, how to improve the high temperature stability of the transition metal oxide and prolong the service life is a problem which is urgently needed to be solved at present.
The high-entropy ceramic is an inorganic non-metallic material formed by mutually solid-dissolving a plurality of components (generally more than 5) in equal proportion or close proportion. Compared with the traditional ceramics, the high-entropy ceramics has good structural stability, excellent mechanical properties and functional characteristics. Since the successful discovery of bulk high-entropy oxides in 2015, there has been a great interest in the research on high-entropy ceramics, and the research on high-entropy ceramics has become a hot spot. The perovskite type high-entropy ceramic is high-entropy oxide ceramic with high stability, has poor structural symmetry, is easy to generate local phonon vibration according to a multi-phonon combination effect, and improves emissivity. Generally, the perovskite structure has defects such as vacancies, dislocations and the like, so that the symmetry is further destroyed, and the emissivity is improved. In addition, the perovskite can generate a P-type semiconductor by doping divalent metal ions, so that more impurity energy levels and free carrier energy levels are introduced, and the emissivity is favorable. The high-entropy ceramic with the perovskite structure is easy to dope and controllable in performance, and the high-emissivity material with high stability can be obtained by substitutional doping of transition elements, can be used for effectively utilizing energy in a high-temperature kiln, and has a long service life.
Based on the stability and multi-component adjustable property of the perovskite type high-entropy ceramic, the invention provides a novel multi-component high-stability perovskite type high-entropy ceramic system which is constructed by compounding high-emissivity materials under various high-temperature conditions and is introduced into coating film coating liquid. At present, few reports about high-entropy high-emissivity coatings exist, and related basic and application researches are limited. Zhu et al substitute La, Nd, Gd, Sm, Pr, Dy, Mg, Fe, Co, Ni, Zn for LaMgAl by solid phase sintering11O19Respectively obtain (La)0.2Nd0.2Gd0.2Sm0.2Pr0.2)MgAl11O19、(La0.2Nd0.2Gd0.2Sm0.2Dy0.2)MgAl11O19And (Mg)0.2Fe0.2Co0.2Ni0.2Zn0.2)Al11O19Three high-entropy high-emissivity ceramic materials, the emissivity of the materials is obviously increased along with the introduction of transition metal elements, wherein (La)0.2Nd0.2Gd0.2Sm0.2Pr0.2)MgAl11O19The emissivity in the near infrared band reaches above 0.9, but the material prepared by solid phase sintering is easy to agglomerate and has poor dispersibility, and the material cost is high due to the adoption of more rare earth elements, so that the material is not beneficial to market production.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a perovskite type high-entropy high-emissivity ceramic coating film coating liquid prepared by combining high-entropy ceramic and high-emissivity infrared coating; the perovskite is beneficial to improving the crystal structure of emissivity and the synergistic effect of transition metal elements with high emissivity at different wave bands, and the prepared coating not only has high-temperature stability far superior to that of a common coating, but also has the emissivity which is greatly improved. Therefore, the coating can be coated on high-temperature places such as high-temperature kilns, boiler inner walls or metal wall surfaces, the utilization rate of heat energy can be effectively improved, and the cost is reduced.
The invention also provides a preparation method and application of the perovskite high-entropy high-emissivity ceramic coating film coating liquid. Compared with a solid-phase sintering method, the powder prepared by the molten salt method has good dispersibility and uniform granularity, and is convenient for the preparation and performance optimization of the subsequent coating liquid. In addition, most of the raw materials selected by the invention are cheap transition metal oxides, so that the cost can be effectively reduced.
In order to achieve the above purpose, the invention provides the following technical scheme:
a perovskite high-entropy high-emissivity ceramic coating liquid is composed of the following components in parts by weight: 10.00-70.00 parts of phosphate binder, 5.00-50.00 parts of sol binder, 10.00-80.00 parts of filler, 1.00-50.00 parts of assistant and 10.00-60.00 parts of solvent water;
the filler is selected from ZnO, CaO, CuO, MgO, NiO, SrO and ZrO2、TiO2、MnO2、CeO2、HfO2、Fe2O3、Co2O3、Cr2O3、Al2O3、Y2O3、La2O3、Nd2O3Five or more than five oxides are obtained by the following treatment (namely, the transition metal oxide is prepared into high-entropy high-emissivity ceramic powder by using a molten salt method) on the raw materials: with NaCl, KCl or CaCl2The raw materials are evenly mixed and then calcined for 1-3h at the temperature of 800-950 ℃, cooled to room temperature, centrifuged to remove the redundant fluxing agent and dried to obtain the fluxing agent.
Specifically, the phosphate binder is one or more of magnesium dihydrogen phosphate, zirconium phosphate, silicon tripolyphosphate, chromium phosphate, chromium aluminum phosphate and other modified composite phosphates, and the material is a main film forming substance.
Specifically, the sol binder is one or more of nano silica sol, nano zirconium sol, nano titanium sol, nano aluminum sol and the like, and the material is a secondary film forming substance.
Specifically, the auxiliary agent may include one or more of a dispersant, a silicate-based rheological agent, a film-forming stabilizer, a defoaming agent, and the like.
More preferably, the dispersant is one or more of a 5040 dispersant, an LED-1 dispersant, a dispersant ox 3070, a dispersant S19, sodium lignosulfonate and other dispersants;
the silicate rheological agent is one or more of silicate rheological additives such as zircon, asbestos, talc, cordierite, mullite, Fischer-Tropsch, amphibole, feldspar and the like.
Further preferably, the film-forming stabilizer is one or more of ethylene glycol, glycerol, lauryl alcohol ester, propylene glycol butyl ether, propylene glycol methyl ether acetate and the like;
the defoaming agent is one or more of polyether modified polydimethylsiloxane, polyoxyethylene polyoxypropylene amine ether, dimethyl silicone oil, polyoxypropylene glycerol ether, fatty glyceride and the like.
The invention provides a preparation method of the perovskite high-entropy high-emissivity ceramic coating liquid, which comprises the following steps of firstly, preparing ZnO, CaO, CuO, MgO, NiO, SrO and ZrO2、TiO2、MnO2、CeO2、HfO2、Fe2O3、Co2O3、Cr2O3、Al2O3、Y2O3、La2O3、Nd2O3Five or more than five of the oxides are prepared into high-entropy high-emissivity ceramic powder by using a molten salt method, and then the prepared powder is prepared into high-entropy high-emissivity ceramic coating film coating liquid by using a sol-gel method and adding a solvent, a bonding agent and an auxiliary agent; the method specifically comprises the following steps: and mixing the solvent water, the phosphate binder, the sol binder, the filler and the auxiliary agent according to the weight parts at room temperature, and stirring at room temperature for 0.5-12 h to obtain the perovskite high-entropy high-emissivity ceramic coating film coating liquid.
The invention also provides application of the high-entropy high-emissivity ceramic coating film coating liquid, and a coating prepared from the film coating liquid is applied to the high-temperature energy-saving fields of high-temperature kilns, boilers, metal wall surfaces and the like.
The invention aims to improve the configuration entropy of the ceramic coating by introducing various oxides in view of the high entropy effect of the ceramic, so that the ceramic coating has higher hardness and thermal/chemical stability. In addition, the introduced oxide has a certain emissivity in an infrared band, and under the combined action of the oxide and the oxide, the coating has a higher emissivity, so that the coating is applied to high-temperature environments such as high-temperature kilns, boilers, metal wall surfaces and the like, and low cost and high heating efficiency are realized. Compared with the prior art, the invention has the following beneficial effects:
1) the preparation method has the advantages of simple preparation process, low raw material cost, environmental protection and no pollution, and the prepared coating liquid has good stability and can be stored for a long time;
2) the invention inherits the advantages of high-entropy ceramics and has three core effects: high entropy effect, namely, several oxides, nitrides and carbides are subjected to solid solution in equal proportion or close proportion, and the high configuration entropy of the high entropy is beneficial to the formation of single-phase solid solution; the high-entropy high-emission ceramic coating is formed by mutually dissolving a plurality of components in a solid solution manner, and the atomic sizes of the components are different, so that the internal crystal lattice of the coating is seriously distorted, and the larger the atomic size difference is, the more serious the distortion is, the serious the lattice distortion causes the hardness of the coating to be increased; the delayed diffusion effect is also one of the reasons for the excellent thermal stability and chemical stability of the high-entropy high-emissivity ceramic coating;
3) according to the invention, various oxides and silicate refractory materials are added, solid solution is formed at high temperature, so that the thermal infrared radiation coefficient can be improved, and the corresponding excellent performances such as heat resistance, corrosion resistance and wear resistance are maintained. In addition, the addition of phosphate and sol binder improves the adhesion of the coating. The high-entropy high-emissivity coating disclosed by the invention has the advantages of high hardness, high thermal stability and chemical stability of high-entropy ceramics, and also has the high emission performance of a high-emission infrared coating; the coating can be coated on high-temperature places such as high-temperature kilns, boiler inner walls or metal wall surfaces, and the like, so that the utilization rate of heat energy can be effectively improved, and the cost is reduced. The coating prepared by the high-entropy high-emissivity ceramic coating film coating liquid has the advantages of high emissivity of over 0.92, pencil hardness of over 6H, water quenching after the coating is heated to 1300 ℃, thermal shock resistance of over 15 times and excellent performance.
Drawings
FIG. 1 is a picture of a high-entropy high-emissivity ceramic coating liquid according to example 1 of the present invention; the paint has high dispersibility and no delamination phenomenon;
FIG. 2 shows a state of the high-entropy high-emissivity ceramic coating after being dried according to embodiment 1 of the present invention; the graph shows that the coating has good compactness and no air holes exist;
FIG. 3 is an SEM picture of a high-entropy high-emissivity ceramic coating in example 1 of the invention; the coating can be seen to be continuous and crack free.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention. Meanwhile, the present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the following examples, all the raw materials were common commercial products which were directly available.
Example 1
A high-entropy high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) weighing 30g of CaCl2As a flux, 0.4g of CuO, 0.2g of MgO, 0.61g of SrO and 0.5g of Cr were weighed out2O3、0.51g Al2O3、0.86g CeO2Mixing the raw materials, calcining at 850 deg.C for 120min, cooling to room temperature, centrifuging to remove excessive CaCl2Drying to obtain the required high-entropy high-emissivity ceramic powder;
2) adding 2g of LED-1 dispersing agent, 1.8g of glycerol and 0.3g of polyoxypropylene glycerol ether into 30g of water, stirring at a high speed for 60min at room temperature to fully dissolve the components, then sequentially adding 24g of nano silica sol, 35g of magnesium dihydrogen phosphate and 20g of zirconite, stirring at a rotating speed of 800r/min for 120min, adding 48g of the high-entropy high-emissivity ceramic powder obtained in the previous step, continuously stirring for 80min to be completely uniform, adding 0.3g of fatty glyceride, and continuously stirring for 50min to obtain the high-entropy high-emissivity ceramic coating film coating liquid.
Example 2
A high-entropy high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) weighing 45g NaCl as fluxing agent, respectively weighing 0.41g ZnO and 2.3g Fe2O3、0.4g TiO2、1.05g HfO2、0.51g Al2O3、1.63g La2O3Uniformly mixing the raw materials, calcining the mixture at 900 ℃ for 120min, cooling the mixture to room temperature, centrifuging the cooled mixture to remove redundant NaCl, and drying the centrifuged mixture to obtain the required high-entropy high-emissivity ceramic powder;
2) adding 2.5g of dispersing agent S19, 2.1g of glycerol and 0.3g of polyoxyethylene polyoxypropylene amine ether into 30g of water, stirring at a high speed for 60min at room temperature to fully dissolve the dispersion, then sequentially adding 22g of nano titanium sol, 40g of silicon triphosphate and 20g of feldspar, stirring at a rotating speed of 800r/min for 60min, adding 40g of the high-entropy high-emissivity ceramic powder obtained in the previous step, continuously stirring for 120min until the mixture is completely uniform, adding 0.4g of polyoxypropylene glycerol ether, and continuously stirring for 60min to obtain the high-entropy high-emissivity ceramic coating film plating solution.
Example 3
A high-entropy high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) 35g of NaCl was weighed as a flux, and 0.4g of CuO, 0.2g of MgO, 0.37g of NiO, and 1.63g of La were weighed, respectively2O3、1.13g Y2O3、0.62g ZrO2Mixing the raw materials, calcining at 900 deg.C for 120min, cooling to room temperature, centrifuging to remove excess NaCl, and drying to obtain the final productEntropy high emissivity ceramic powder;
2) adding 1.2g of 5040 dispersing agent, 1.8g of ethylene glycol and 0.3g of fatty glyceride into 21g of water, stirring at high speed for 20min at room temperature to fully dissolve the materials, then sequentially adding 18g of nano silica sol, 32g of chromium phosphate and 25g of fistulite, stirring at the rotating speed of 800r/min for 30min, adding 34g of the high-entropy high-emissivity ceramic powder obtained in the previous step, continuously stirring for 50min until the mixture is completely uniform, adding 0.4g of polyether modified polydimethylsiloxane, and continuously stirring for 30min to obtain the high-entropy high-emissivity ceramic coating film coating liquid.
Example 4
A high-entropy high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) 32g of KCl is weighed as a fluxing agent, and 0.28g of CaO, 0.4g of CuO, 0.37g of NiO and 0.4g of TiO are respectively weighed2、0.83g Co2O3、1.68g Nd2O3Uniformly mixing the raw materials, calcining the mixture at 850 ℃ for 120min, cooling the mixture to room temperature, centrifuging the cooled mixture to remove redundant KCl, and drying the centrifuged mixture to obtain the required high-entropy high-emissivity ceramic powder;
2) adding 1.6g of dispersing agent ox 3070, 1.8g of glycerol and 0.4g of polyoxypropylene glycerol ether into 28g of water, stirring at a high speed for 50min at room temperature to fully dissolve the materials, then sequentially adding 20g of nano silica sol, 38g of chromium phosphate and 24g of cordierite, stirring at a rotating speed of 800r/min for 100min, adding 45g of the high-entropy high-emissivity ceramic powder obtained in the step, continuously stirring for 120min until the mixture is completely uniform, adding 0.3g of simethicone, and continuously stirring for 60min to obtain the high-entropy high-emissivity ceramic coating film coating liquid.
Example 5
A high-entropy high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) weighing 32g of CaCl2As a flux, 0.61g of SrO and 0.62g of ZrO were weighed out separately2、0.4g TiO2、0.44g MnO2、1.05g HfO2、0.51g Al2O3Mixing the raw materials, calcining at 850 deg.C for 120min, cooling to room temperature, centrifuging to remove excessive CaCl2Drying the mixtureThe required high-entropy high-emissivity ceramic powder can be obtained;
2) adding 2g of sodium lignosulfonate, 1.2g of dodecyl alcohol ester and 0.2g of dimethyl silicone oil into 25g of water, stirring at a high speed for 20min at room temperature to fully dissolve the sodium lignosulfonate, the 1.2g of dodecyl alcohol ester and the 0.2g of dimethyl silicone oil, then adding 15g of nano zirconium sol, 30g of chromium aluminum phosphate and 15g of asbestos, stirring at a rotating speed of 800r/min for 30min, adding 30g of the high-entropy high-emissivity ceramic powder obtained in the step, continuously stirring for 30min until the mixture is completely uniform, adding 0.2g of fatty glyceride, and continuously stirring for 30min to obtain the high-entropy high-emissivity ceramic coating film-coating liquid.
Example 6
A high-entropy high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) weighing 35g of CaCl2As a flux, 0.4g of CuO, 0.2g of MgO, 0.61g of SrO, 0.37g of NiO and 0.44g of MnO were weighed out respectively2、1.05g HfO2Mixing the raw materials, calcining at 850 deg.C for 120min, cooling to room temperature, centrifuging to remove excessive CaCl2Drying to obtain the required high-entropy high-emissivity ceramic powder;
2) adding 1g of 5040 dispersing agent, 2.2g of glycerol and 0.3g of polyoxypropylene glycerol ether into 28g of water, stirring at high speed for 30min at room temperature to fully dissolve the materials, then adding 18g of nano zirconium sol, 28g of chromium aluminum phosphate and 16g of feldspar, stirring at the rotating speed of 800r/min for 50min, adding 35g of the high-entropy high-emissivity ceramic powder obtained in the previous step, continuously stirring for 40min to be completely uniform, adding 0.2g of polyoxypropylene glycerol ether, and continuously stirring for 30min to obtain the high-entropy high-emissivity ceramic coating film coating liquid.
Comparative example 1
A high-emissivity ceramic coating liquid is prepared by the following method:
1) weighing 30g of CaCl2As a flux, 0.4g of CuO and 0.51g of Al were weighed out separately2O3、0.5g Cr2O3Mixing the raw materials, calcining at 850 deg.C for 120min, cooling to room temperature, centrifuging to remove excessive CaCl2Drying to obtain the required high-entropy high-emissivity ceramic powder;
2) adding 2g of LED-1 dispersing agent, 1.8g of glycerol and 0.3g of polyoxypropylene glycerol ether into 30g of water, stirring at a high speed for 60min at room temperature to fully dissolve the components, then sequentially adding 24g of nano silica sol, 35g of magnesium dihydrogen phosphate and 20g of zirconite, stirring at a rotating speed of 800r/min for 120min, adding 48g of the high-entropy high-emissivity ceramic powder obtained in the previous step, continuously stirring for 80min to be completely uniform, adding 0.3g of fatty glyceride, and continuously stirring for 50min to obtain the high-entropy high-emissivity ceramic coating film coating liquid.
Comparative example 2
A high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) 35g of NaCl was weighed as a flux, and 0.4g of CuO, 0.2g of MgO, 0.37g of NiO, and 0.62g of ZrO were weighed respectively2Uniformly mixing the raw materials, calcining the mixture at 900 ℃ for 120min, cooling the mixture to room temperature, centrifuging the cooled mixture to remove redundant NaCl, and drying the centrifuged mixture to obtain the required high-entropy high-emissivity ceramic powder;
2) adding 1.2g of 5040 dispersing agent, 1.8g of ethylene glycol and 0.3g of fatty glyceride into 21g of water, stirring at high speed for 20min at room temperature to fully dissolve the materials, then sequentially adding 18g of nano silica sol, 32g of chromium phosphate and 25g of fistulite, stirring at the rotating speed of 800r/min for 30min, adding 34g of the high-entropy high-emissivity ceramic powder obtained in the previous step, continuously stirring for 50min until the mixture is completely uniform, adding 0.4g of polyether modified polydimethylsiloxane, and continuously stirring for 30min to obtain the high-entropy high-emissivity ceramic coating film coating liquid.
Comparative example 3
A high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) 32g of KCl is weighed as a fluxing agent, 0.28g of CaO and 0.4g of TiO are respectively weighed2、0.83g Co2O3Uniformly mixing the raw materials, calcining the mixture at 850 ℃ for 120min, cooling the mixture to room temperature, centrifuging the cooled mixture to remove redundant KCl, and drying the centrifuged mixture to obtain the required high-entropy high-emissivity ceramic powder;
2) adding 1.6g of dispersing agent ox 3070, 1.8g of glycerol and 0.4g of polyoxypropylene glycerol ether into 28g of water, stirring at a high speed for 50min at room temperature to fully dissolve the materials, then sequentially adding 20g of nano silica sol, 38g of chromium phosphate and 24g of cordierite, stirring at a rotating speed of 800r/min for 100min, adding 45g of the high-entropy high-emissivity ceramic powder obtained in the step, continuously stirring for 120min until the mixture is completely uniform, adding 0.3g of simethicone, and continuously stirring for 60min to obtain the high-entropy high-emissivity ceramic coating film coating liquid.
Comparative example 4
A high-emissivity ceramic coating film coating liquid is prepared by the following method:
1) weighing 35g of CaCl2As a flux, 0.4g of CuO, 0.37g of NiO, and 1.05g of HfO were weighed out2Mixing the raw materials, calcining at 850 deg.C for 120min, cooling to room temperature, centrifuging to remove excessive CaCl2Drying to obtain the required high-entropy high-emissivity ceramic powder;
2) adding 1g of 5040 dispersing agent, 2.2g of glycerol and 0.3g of polyoxypropylene glycerol ether into 28g of water, stirring at high speed for 30min at room temperature to fully dissolve the materials, then adding 18g of nano zirconium sol, 28g of chromium aluminum phosphate and 16g of feldspar, stirring at the rotating speed of 800r/min for 50min, adding 35g of the high-entropy high-emissivity ceramic powder obtained in the previous step, continuously stirring for 40min to be completely uniform, adding 0.2g of polyoxypropylene glycerol ether, and continuously stirring for 30min to obtain the high-entropy high-emissivity ceramic coating film coating liquid.
The coating liquids obtained in the examples and comparative examples were applied by brush coating and dried to obtain the final coating.
Performance test
1. And (3) emissivity testing: the emissivity of the coating at 1000 ℃ in the 0.5-5 μm band is tested.
2. And (3) hardness testing: the coating was tested for pencil hardness.
3. And (3) testing thermal shock resistance: the coating is heated to 1300 ℃ and then water quenched, and the quenching is repeated until the coating is damaged, and the quenching is measured according to the repeated times.
Figure DEST_PATH_IMAGE002
Compared with the common coating, the high-entropy high-emissivity coating has the advantages of high hardness, high thermal stability and chemical stability of high-entropy ceramics, and high emission performance of high-emission infrared coating. The coating can be coated on high-temperature places such as high-temperature kilns, boiler inner walls or metal wall surfaces, and the like, so that the utilization rate of heat energy can be effectively improved, and the cost is reduced.

Claims (8)

1. A perovskite high-entropy high-emissivity ceramic coating film coating liquid is characterized by comprising the following components in parts by weight: 10.00-70.00 parts of phosphate binder, 5.00-50.00 parts of sol binder, 10.00-80.00 parts of filler, 1.00-50.00 parts of assistant and 10.00-60.00 parts of solvent water;
the filler is selected from ZnO, CaO, CuO, MgO, NiO, SrO and ZrO2、TiO2、MnO2、CeO2、HfO2、Fe2O3、Co2O3、Cr2O3、Al2O3、Y2O3、La2O3、Nd2O3And five or more of them, and is obtained by the following treatment: with NaCl, KCl or CaCl2The raw materials are evenly mixed and then calcined for 1-3h at the temperature of 800-950 ℃, cooled to room temperature, centrifuged to remove the redundant fluxing agent and dried to obtain the fluxing agent.
2. The perovskite high-entropy high-emissivity ceramic coating liquid of claim 1, wherein the phosphate binder is one or more of magnesium dihydrogen phosphate, zirconium phosphate, silicon tripolyphosphate, chromium phosphate, and chromium aluminum phosphate.
3. The perovskite high-entropy high-emissivity ceramic coating liquid of claim 1, wherein the sol binder is one or more of nano silica sol, nano zirconium sol, nano titanium sol and nano aluminum sol.
4. The perovskite high-entropy high-emissivity ceramic coating liquid of claim 1, wherein the auxiliary agent comprises one or more of a dispersing agent, a silicate rheological agent, a film forming stabilizer and an antifoaming agent.
5. The perovskite high-entropy high-emissivity ceramic coating liquid of claim 4, wherein the dispersant is one or more of a 5040 dispersant, an LED-1 dispersant, a dispersant ox 3070, a dispersant S19 and sodium lignosulfonate;
the silicate rheological agent is one or more of zircon, asbestos, talc, cordierite, mullite, Fischer-Tropsch, amphibole and feldspar.
6. The perovskite high-entropy high-emissivity ceramic coating liquid of claim 4, wherein the film forming stabilizer is one or more of ethylene glycol, glycerol, dodecyl alcohol ester, propylene glycol butyl ether and propylene glycol methyl ether acetate;
the defoaming agent is one or more of polyether modified polydimethylsiloxane, polyoxyethylene polyoxypropylene amine ether, dimethyl silicone oil, polyoxypropylene glycerol ether and fatty glyceride.
7. The preparation method of any one of the perovskite high-entropy high-emissivity ceramic coating film-coating liquid of claims 1 to 6, characterized by mixing the solvent water, the phosphate binder, the sol binder, the filler and the auxiliary agent according to the weight parts ratio at room temperature, and then stirring at room temperature for 0.5-12 h to obtain the perovskite high-entropy high-emissivity ceramic coating film-coating liquid.
8. The use of the perovskite high-entropy high-emissivity ceramic coating solution as claimed in any one of claims 1 to 6, wherein the coating prepared from the coating solution is used for high-temperature furnaces, boilers and metal wall surfaces.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115594503A (en) * 2022-12-14 2023-01-13 中国人民解放军国防科技大学（Cn） Calcium and iron co-doped NdAlO 3 Ceramic material and preparation method and application thereof
CN115650692A (en) * 2022-12-02 2023-01-31 中国科学院兰州化学物理研究所 Nano high-entropy protective coating suitable for water-cooled wall and preparation method thereof
CN115677348A (en) * 2022-09-29 2023-02-03 包头市安德窑炉科技有限公司 Infrared radiation material prepared by using spent cerium-zirconium catalyst and preparation method thereof
CN115895311A (en) * 2022-12-02 2023-04-04 中国科学院兰州化学物理研究所 Protective coating suitable for co-combustion of high-sulfur and high-alkali coal and coating preparation method thereof
CN116396080A (en) * 2023-04-06 2023-07-07 中国科学院合肥物质科学研究院 Low-carbon high-entropy ceramic powder and preparation method thereof
CN117447197A (en) * 2023-12-25 2024-01-26 上海南极星高科技股份有限公司 Preparation method of high-entropy pseudobrookite titanate ceramic
CN117511262A (en) * 2023-11-13 2024-02-06 中国科学院兰州化学物理研究所 Water-based high-entropy boride ceramic coating and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108793929A (en) * 2018-06-20 2018-11-13 深圳陶金材料科技有限公司 A kind of ceramal coating and coating
CN111302781A (en) * 2020-02-27 2020-06-19 中钢集团南京新材料研究院有限公司 Preparation method of Fe-Ti-Ni-Co-Mn high-entropy oxide ceramic material
CN111423236A (en) * 2020-03-22 2020-07-17 华南理工大学 (Hf) 0.25Ti0.25Zr0.25W0.25) N high-entropy ceramic powder and preparation method thereof
CN113149088A (en) * 2021-06-15 2021-07-23 中钢集团洛阳耐火材料研究院有限公司 High-emissivity infrared energy-saving high-entropy material with perovskite structure and preparation method thereof
CN113372088A (en) * 2021-07-23 2021-09-10 中国科学院兰州化学物理研究所 Method for preparing water-based ceramic functional coating by using high-entropy oxide as functional pigment
CN113548898A (en) * 2021-08-19 2021-10-26 郑州大学 (Mo)0.2W0.2V0.2Cr0.2Ni0.2) B high-entropy ceramic powder and preparation method thereof
US20210347699A1 (en) * 2018-10-09 2021-11-11 Oerlikon Metco (Us) Inc. High-entropy oxides for thermal barrier coating (tbc) top coats
CN113880580A (en) * 2021-11-12 2022-01-04 内蒙古工业大学 High-entropy carbide ultra-high temperature ceramic powder and preparation method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108793929A (en) * 2018-06-20 2018-11-13 深圳陶金材料科技有限公司 A kind of ceramal coating and coating
US20210347699A1 (en) * 2018-10-09 2021-11-11 Oerlikon Metco (Us) Inc. High-entropy oxides for thermal barrier coating (tbc) top coats
CN111302781A (en) * 2020-02-27 2020-06-19 中钢集团南京新材料研究院有限公司 Preparation method of Fe-Ti-Ni-Co-Mn high-entropy oxide ceramic material
CN111423236A (en) * 2020-03-22 2020-07-17 华南理工大学 (Hf) 0.25Ti0.25Zr0.25W0.25) N high-entropy ceramic powder and preparation method thereof
CN113149088A (en) * 2021-06-15 2021-07-23 中钢集团洛阳耐火材料研究院有限公司 High-emissivity infrared energy-saving high-entropy material with perovskite structure and preparation method thereof
CN113372088A (en) * 2021-07-23 2021-09-10 中国科学院兰州化学物理研究所 Method for preparing water-based ceramic functional coating by using high-entropy oxide as functional pigment
CN113548898A (en) * 2021-08-19 2021-10-26 郑州大学 (Mo)0.2W0.2V0.2Cr0.2Ni0.2) B high-entropy ceramic powder and preparation method thereof
CN113880580A (en) * 2021-11-12 2022-01-04 内蒙古工业大学 High-entropy carbide ultra-high temperature ceramic powder and preparation method thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115677348A (en) * 2022-09-29 2023-02-03 包头市安德窑炉科技有限公司 Infrared radiation material prepared by using spent cerium-zirconium catalyst and preparation method thereof
CN115650692A (en) * 2022-12-02 2023-01-31 中国科学院兰州化学物理研究所 Nano high-entropy protective coating suitable for water-cooled wall and preparation method thereof
CN115895311A (en) * 2022-12-02 2023-04-04 中国科学院兰州化学物理研究所 Protective coating suitable for co-combustion of high-sulfur and high-alkali coal and coating preparation method thereof
CN115895311B (en) * 2022-12-02 2023-08-04 中国科学院兰州化学物理研究所 Protective coating suitable for blending high-sulfur high-alkali coal and preparation method of coating
CN115650692B (en) * 2022-12-02 2023-12-01 中国科学院兰州化学物理研究所 Nanometer high-entropy protective coating suitable for water-cooled wall and preparation method thereof
CN115594503A (en) * 2022-12-14 2023-01-13 中国人民解放军国防科技大学（Cn） Calcium and iron co-doped NdAlO 3 Ceramic material and preparation method and application thereof
CN116396080A (en) * 2023-04-06 2023-07-07 中国科学院合肥物质科学研究院 Low-carbon high-entropy ceramic powder and preparation method thereof
CN116396080B (en) * 2023-04-06 2023-11-28 中国科学院合肥物质科学研究院 Low-carbon high-entropy ceramic powder and preparation method thereof
CN117511262A (en) * 2023-11-13 2024-02-06 中国科学院兰州化学物理研究所 Water-based high-entropy boride ceramic coating and preparation method thereof
CN117447197A (en) * 2023-12-25 2024-01-26 上海南极星高科技股份有限公司 Preparation method of high-entropy pseudobrookite titanate ceramic
CN117447197B (en) * 2023-12-25 2024-02-27 上海南极星高科技股份有限公司 Preparation method of high-entropy pseudobrookite titanate ceramic

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