CN114517045A - Preparation method of manganese oxide coating - Google Patents
Preparation method of manganese oxide coating Download PDFInfo
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- CN114517045A CN114517045A CN202210139530.9A CN202210139530A CN114517045A CN 114517045 A CN114517045 A CN 114517045A CN 202210139530 A CN202210139530 A CN 202210139530A CN 114517045 A CN114517045 A CN 114517045A
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- manganese oxide
- coating
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- carrier
- oxide coating
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- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 title claims abstract description 124
- 239000011248 coating agent Substances 0.000 title claims abstract description 59
- 238000000576 coating method Methods 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000003085 diluting agent Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 150000001412 amines Chemical class 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000003822 epoxy resin Substances 0.000 claims abstract description 14
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 14
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000004593 Epoxy Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 8
- 239000002808 molecular sieve Substances 0.000 claims description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 7
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical group C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 claims description 4
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 3
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 claims description 3
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 3
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 3
- 229940018564 m-phenylenediamine Drugs 0.000 claims description 3
- CYCBPQPFMHUATH-UHFFFAOYSA-N 4-(oxiran-2-ylmethoxy)butan-1-ol Chemical compound OCCCCOCC1CO1 CYCBPQPFMHUATH-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 description 7
- 238000005303 weighing Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 238000007084 catalytic combustion reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2262—Oxides; Hydroxides of metals of manganese
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Catalysts (AREA)
Abstract
The invention belongs to the technical field of preparation of manganese oxide catalysts, and particularly relates to a preparation method of a manganese oxide coating. The preparation method comprises the following steps: (1) under the stirring condition, uniformly mixing bisphenol A type epoxy resin and an active diluent, then adding an amine curing agent, continuously stirring, and uniformly mixing to obtain a mixture A; (2) adding manganese oxide into the mixture A, and uniformly stirring and mixing to obtain a mixture B; (3) coating the mixture B on the surface of a carrier to form a coating, and controlling the coating amount according to the coating thickness of different requirements; (4) and (4) drying the coating formed in the step (3) to obtain a manganese oxide coating on the surface of the carrier. The method has the advantages of simple and convenient process and environmental protection, and the prepared manganese oxide coating has strong binding force with the carrier and good stability.
Description
Technical Field
The invention belongs to the technical field of preparation of manganese oxide catalysts, and particularly relates to a preparation method of a manganese oxide coating.
Background
The common catalytic combustion catalyst comprises noble metal, perovskite type oxide, transition metal oxide and the like, the noble metal catalyst has poor thermal stability, is easy to sinter and volatilize at high temperature and has high price, so that the application of the noble metal catalyst is greatly limited; the perovskite type oxide has higher oxygen desorption temperature and is easy to sinter at high temperature; transition metal oxides (e.g., manganese oxide, cobalt oxide, copper oxide, etc.) are inexpensive and are considered to be the most promising catalytic combustion catalysts. Among them, the manganese oxide octahedral molecular sieve (OMS-2) has excellent ion exchange performance, redox performance and adsorption performance, and is widely applied in the field of catalysis.
However, the powdered manganese oxide has the disadvantages of difficult recovery, easy loss, easy agglomeration during the reaction process, low recycling rate and the like, which greatly limits the practical application of the powdered catalyst. Therefore, how to make the powdered octahedral manganese oxide molecular sieve into a monolithic catalyst is a key for improving the catalytic effect and stability of the catalyst, and the reports of the prior art are less in this part. In particular, the weak binding force between the catalytic component coating and the carrier in the process of preparing the monolithic catalyst is always a problem to be solved.
In view of this, the invention is particularly proposed.
Disclosure of Invention
The invention aims to overcome the defects of weak binding force between a manganese oxide coating and a carrier, poor catalytic performance and the like in the preparation of a manganese oxide coating catalyst in the prior art, and provides a preparation method of the manganese oxide coating. The preparation method is simple and convenient to operate, and the prepared manganese oxide coating is strong in binding force with the carrier and good in stability.
The invention is realized by the following technical scheme:
a preparation method of a manganese oxide coating specifically comprises the following steps:
(1) under the stirring condition, uniformly mixing bisphenol A type epoxy resin and an active diluent, then adding an amine curing agent, continuously stirring, and uniformly mixing to obtain a mixture A;
(2) adding manganese oxide into the mixture A, and uniformly stirring and mixing to obtain a mixture B;
(3) coating the mixture B on the surface of a carrier to form a coating, and controlling the coating amount according to the coating thickness of different requirements;
(4) and (4) drying the coating formed in the step (3) to obtain a manganese oxide coating on the surface of the carrier.
Preferably, the mass ratio of the bisphenol A epoxy resin to the reactive diluent to the manganese oxide is 5:1: 1; the amount of the amine curing agent added is 30% of the epoxy value of the bisphenol A epoxy resin.
Preferably, the amine curing agent is 4, 4-diaminodiphenylmethane or/and m-phenylenediamine; the epoxy value of the bisphenol A epoxy resin is 0.30-0.42 eq.
The aromatic amine curing agent has stable benzene rings, and a cured product formed by curing the epoxy resin and the amine curing agent has a high Tg temperature. Compared with other curing agents in the prior art, such as acid anhydride, which contains carboxyl, the catalyst is easy to deactivate, and the amine curing agent adopted in the method can be well avoided.
In the prior art, a single-component organic binder is generally adopted in preparation of an OMS-2 coating, the operation condition of the binder is influenced by various factors such as a latency period, a stabilization period and the like, and the single-component binder has limited application range and narrow performance range. According to the composite material system, the epoxy resin, the reactive diluent and the amine curing agent are mixed and then coated on the surface of the carrier, and the epoxy resin and the amine curing agent are mixed and then cured to form the manganese oxide coating, so that the glass transition temperature Tg of the composite material system can reach over 260 ℃, and the composite material system is wide in application range. The crystal phase structure of the manganese oxide is not changed in the process of preparing the manganese oxide coating, the binder does not need to be removed, the coating can be used for a long time, the performance is stable, and the problems that the coating and a carrier are weak in acting force and easy to fall off after the binder needs to be removed in the prior art are solved.
Preferably, the manganese oxide is octahedral molecular sieve (OMS-2) of manganese oxide.
Preferably, the reactive diluent is a low viscosity monofunctional or difunctional epoxy-based diluent.
Further, the reactive diluent is one or more of butyl glycidyl ether, aniline glycidyl ether, 1, 4-butanediol glycidyl ether and glycidyl methacrylate; the low viscosity is a viscosity of 200 mPas or less at room temperature, which is generally measured by a rotational viscometer.
The main function of adding the active diluent in the process of preparing the manganese oxide coating can reduce the viscosity of the bisphenol A epoxy resin, because the viscosity of the bisphenol A epoxy resin is generally between 10000-100000 mPa.s, the operation is inconvenient, the active epoxy diluent is adopted in the invention, the epoxy functional group contained in the active epoxy diluent can participate in the curing process in the process of curing the resin, and compared with VOCs (volatile organic compounds) caused by the fact that the inert diluent used in the prior art does not participate in the curing reaction, the active diluent can greatly reduce or avoid the problem of the generated VOCs.
Optionally, the material of the carrier may be any one or more of alumina, silicon carbide, ceramic, and graphite.
Preferably, the drying process in step (4) is: keeping at 50-60 deg.C for 2 hr, heating to 100 deg.C, keeping for 5 hr, heating to 120 deg.C again, keeping for 2 hr, and cooling to 20-30 deg.C.
Compared with the prior art, the invention has the following effects:
1. the manganese oxide coating is obtained by mixing the manganese oxide, the reactive diluent and the amine curing agent, coating the mixture on the surface of a carrier, and drying the carrier. The existence of the reactive diluent and the amine curing agent can not only have strong interaction with the surface of the carrier, but also have interaction with the manganese oxide, and the forming is easy, so that the coating is kept to have a certain shape, and the coating can keep better stability.
2. Compared with the loading method of the manganese oxide coating reported in the prior art, the method needs to remove the binder, after the binder is removed, the acting force between the manganese oxide and the carrier is weakened, the manganese oxide is easy to fall off, and after high-temperature roasting, unknown chemical reaction possibly occurs between the manganese oxide and the carrier, so that the performance of the manganese oxide is influenced. The method does not need to remove the reactive diluent and the amine curing agent, does not change the crystal phase structure of the manganese oxide, can be used for a long time, and has more environment-friendly process and more stable coating performance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, the numerical values set forth in these examples do not limit the scope of the invention. Techniques, methods known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
Example 1
A preparation method of a manganese oxide coating comprises the following steps:
(1) weighing 10g of manganese oxide, wherein the manganese oxide has a crystal phase structure of an octahedral molecular sieve (OMS-2);
(2) simultaneously weighing 50g of bisphenol A type epoxy resin (with the epoxy value of 0.35eq) and 10g of butyl glycidyl ether (active diluent, the viscosity is less than or equal to 200mPa & s), mixing and stirring, then adding 4, 4-diaminodiphenylmethane (amine curing agent) with the epoxy value of 30% of that of the epoxy resin according to the epoxy value of the epoxy resin, and uniformly stirring to obtain a mixture A;
(3) then, mixing the manganese oxide obtained in the step (1) with the mixture A, and stirring uniformly to obtain a mixture B;
(4) coating the mixture B obtained in the step (3) on the surface of a carrier, heating the coating to 50-60 ℃ for 2 hours, heating to 100 ℃ for 5 hours, heating to 120 ℃ again for 2 hours, and finally cooling to 20-30 ℃ to obtain a manganese oxide coating on the surface of the carrier.
Example 2
A preparation method of a manganese oxide coating comprises the following steps:
(1) weighing 10g of manganese oxide, wherein the manganese oxide has a crystal phase structure of an octahedral molecular sieve (OMS-2);
(2) simultaneously weighing 50g of bisphenol A type epoxy resin (with an epoxy value of 0.36eq) and 10g of glycidyl methacrylate (with a viscosity of less than or equal to 200mPa & s) and mixing and stirring, then adding m-phenylenediamine (amine curing agent) with the epoxy value of 30% of that of the epoxy resin according to the epoxy value of the epoxy resin and uniformly stirring to obtain a mixture A;
(3) then, mixing the manganese oxide obtained in the step (1) with the mixture A, and stirring uniformly to obtain a mixture B;
(4) coating the mixture B obtained in the step (3) on the surface of a carrier, heating the coating to 50-60 ℃ for 2 hours, heating to 100 ℃ for 5 hours, heating to 120 ℃ again for 2 hours, and finally cooling to 20-30 ℃ to obtain a manganese oxide coating on the surface of the carrier.
Example 3
A preparation method of a manganese oxide coating comprises the following steps:
(1) weighing 10g of manganese oxide, wherein the manganese oxide has a crystal phase structure of an octahedral molecular sieve (OMS-2);
(2) simultaneously weighing 50g of bisphenol A type epoxy resin (with an epoxy value of 0.42eq) and 10g of aniline glycidyl ether (an active diluent, the viscosity is less than or equal to 200mPa & s), mixing and stirring, then adding 4, 4-diaminodiphenylmethane (an amine curing agent) with the epoxy value of 30% according to the epoxy value of the epoxy resin, and uniformly stirring to obtain a mixture A;
(3) then, mixing the manganese oxide obtained in the step (1) with the mixture A, and stirring uniformly to obtain a mixture B;
(4) coating the mixture B obtained in the step (3) on the surface of a carrier, heating the coating to 50-60 ℃ for 2 hours, heating to 100 ℃ for 5 hours, heating to 120 ℃ again for 2 hours, and finally cooling to 20-30 ℃ to obtain a manganese oxide coating on the surface of the carrier.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The preparation method of the manganese oxide coating is characterized by comprising the following steps:
(1) under the stirring condition, uniformly mixing bisphenol A type epoxy resin and an active diluent, then adding an amine curing agent, continuously stirring, and uniformly mixing to obtain a mixture A;
(2) adding manganese oxide into the mixture A, and uniformly stirring and mixing to obtain a mixture B;
(3) coating the mixture B on the surface of a carrier to form a coating, and controlling the coating amount according to the coating thickness of different requirements;
(4) and (4) drying the coating formed in the step (3) to obtain a manganese oxide coating on the surface of the carrier.
2. The method for preparing a manganese oxide coating according to claim 1, wherein the mass ratio of the bisphenol A epoxy resin, the reactive diluent and the manganese oxide is 5:1: 1; the amount of the amine curing agent added is 30% of the epoxy value of the bisphenol A epoxy resin.
3. The method for preparing a manganese oxide coating according to claim 2, wherein said amine curing agent is 4, 4-diaminodiphenylmethane or/and m-phenylenediamine; the epoxy value of the bisphenol A epoxy resin is 0.30-0.42 eq.
4. The method of claim 1, wherein the manganese oxide is an octahedral molecular sieve of manganese oxide.
5. The method of claim 1, wherein the reactive diluent is a low viscosity mono-or di-functional epoxy diluent.
6. The method for preparing a manganese oxide coating according to claim 4, wherein said reactive diluent is one or more of butyl glycidyl ether, aniline glycidyl ether, 1, 4-butanediol glycidyl ether, glycidyl methacrylate; the low viscosity is 200 mPas or less at room temperature.
7. The method for preparing a manganese oxide coating according to claim 1, wherein said carrier is made of any one or more of alumina, silicon carbide, ceramic and graphite.
8. The method for preparing a manganese oxide coating according to claim 1, wherein said drying process in step (4) is: keeping at 50-60 deg.C for 2 hr, heating to 100 deg.C, keeping for 5 hr, heating to 120 deg.C again, keeping for 2 hr, and cooling to 20-30 deg.C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139530.9A CN114517045A (en) | 2022-02-16 | 2022-02-16 | Preparation method of manganese oxide coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210139530.9A CN114517045A (en) | 2022-02-16 | 2022-02-16 | Preparation method of manganese oxide coating |
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| CN104379260A (en) * | 2012-05-10 | 2015-02-25 | 康涅狄格州大学 | Methods and apparatus for making catalyst films |
| US20160177794A1 (en) * | 2014-12-17 | 2016-06-23 | University Of Connecticut | Method for removing soot from exhaust gases |
| CN109535937A (en) * | 2018-11-29 | 2019-03-29 | 沈阳理工大学 | A kind of water-resistant type, which is reviewed one's lessons by oneself, relapses wave, anticorrosive paint and preparation method thereof |
| CN109762445A (en) * | 2019-01-24 | 2019-05-17 | 江南大学 | Polyaniline/manganese sesquioxide managnic oxide/dual anticorrosive paint of epoxy resin tri compound and preparation method thereof |
| CN111718625A (en) * | 2019-03-22 | 2020-09-29 | 爱信化工株式会社 | Aqueous coating composition |
| CN113072860A (en) * | 2021-05-17 | 2021-07-06 | 南京深业智能化系统工程有限公司 | Nano rare earth oxide modified functional coating and preparation method thereof |
-
2022
- 2022-02-16 CN CN202210139530.9A patent/CN114517045A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104379260A (en) * | 2012-05-10 | 2015-02-25 | 康涅狄格州大学 | Methods and apparatus for making catalyst films |
| US20160177794A1 (en) * | 2014-12-17 | 2016-06-23 | University Of Connecticut | Method for removing soot from exhaust gases |
| CN109535937A (en) * | 2018-11-29 | 2019-03-29 | 沈阳理工大学 | A kind of water-resistant type, which is reviewed one's lessons by oneself, relapses wave, anticorrosive paint and preparation method thereof |
| CN109762445A (en) * | 2019-01-24 | 2019-05-17 | 江南大学 | Polyaniline/manganese sesquioxide managnic oxide/dual anticorrosive paint of epoxy resin tri compound and preparation method thereof |
| CN111718625A (en) * | 2019-03-22 | 2020-09-29 | 爱信化工株式会社 | Aqueous coating composition |
| CN113072860A (en) * | 2021-05-17 | 2021-07-06 | 南京深业智能化系统工程有限公司 | Nano rare earth oxide modified functional coating and preparation method thereof |
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Application publication date: 20220520 |