CN116376398B - Water-based epoxy insulating impregnating coating and preparation method and application thereof - Google Patents
Water-based epoxy insulating impregnating coating and preparation method and application thereof Download PDFInfo
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- CN116376398B CN116376398B CN202310326579.XA CN202310326579A CN116376398B CN 116376398 B CN116376398 B CN 116376398B CN 202310326579 A CN202310326579 A CN 202310326579A CN 116376398 B CN116376398 B CN 116376398B
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- 239000004593 Epoxy Substances 0.000 title claims abstract description 58
- 238000000576 coating method Methods 0.000 title claims abstract description 49
- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 239000002562 thickening agent Substances 0.000 claims abstract description 19
- 239000000839 emulsion Substances 0.000 claims abstract description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 6
- 239000002966 varnish Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000013556 antirust agent Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- FVCSARBUZVPSQF-UHFFFAOYSA-N 5-(2,4-dioxooxolan-3-yl)-7-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C(C(OC2=O)=O)C2C(C)=CC1C1C(=O)COC1=O FVCSARBUZVPSQF-UHFFFAOYSA-N 0.000 claims description 2
- 229920003270 Cymel® Polymers 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 32
- 238000003860 storage Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000012855 volatile organic compound Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- -1 aliphatic isocyanate Chemical class 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 7
- 239000004721 Polyphenylene oxide Substances 0.000 description 7
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 7
- 229920000570 polyether Polymers 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- JHRDMNILWGIFBI-UHFFFAOYSA-N 6-diazenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(N=N)=N1 JHRDMNILWGIFBI-UHFFFAOYSA-N 0.000 description 5
- 229920000877 Melamine resin Polymers 0.000 description 5
- 239000004640 Melamine resin Substances 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 239000003112 inhibitor Substances 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000005028 tinplate Substances 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- QBDAFARLDLCWAT-UHFFFAOYSA-N 2,3-dihydropyran-6-one Chemical compound O=C1OCCC=C1 QBDAFARLDLCWAT-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D7/20—Diluents or solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a waterborne epoxy insulating impregnating coating and a preparation method and application thereof. The aqueous epoxy insulating impregnating coating comprises the following components in percentage by mass: aqueous epoxy emulsion: 45% -55%; curing agent: 4.5 to 5.5 percent; catalyst: 0.4 to 0.6 percent; leveling agent: 0.1 to 0.3 percent; and (3) a thickening agent: 2% -4%; anti-flash rust agent: 0.7 to 0.9 percent; water: the balance. The preparation method of the waterborne epoxy insulating impregnating coating is quite simple, and all the components are uniformly mixed. The aqueous epoxy insulating impregnating coating disclosed by the invention has the advantages of excellent storage stability, low VOC (volatile organic compound) release amount, low production cost, easiness in obtaining raw materials and the like, and the formed paint film is high in hardness, large in adhesive force, excellent in insulating property and excellent in mechanical property, and is suitable for various motor rotors, stators, various types of coils and other products.
Description
Technical Field
The invention relates to the technical field of insulating paint, in particular to a waterborne epoxy insulating impregnating paint, a preparation method and application thereof.
Background
The insulating paint is also called insulating paint, and is a paint with excellent electrical insulation property. The insulating paint is an indispensable material in the manufacture of motors and electric appliances, and the quality of the insulating paint plays a key role in technical and economic indexes and operation life of electrical equipment. The insulating impregnating coating is one of three main insulating materials for insulating windings of electric products, and is mainly used for insulating windings of motors, coils of electric appliances and the like, and is used for improving the electrical insulation, heat conductivity, moisture resistance, heat resistance, mechanical strength, chemical stability and the like of the products. The traditional solvent type insulating impregnating coating contains a large amount of inflammable, explosive, toxic and harmful solvents such as benzene, ketoesters and the like, so that the traditional solvent type insulating impregnating coating not only can harm the health of constructors, but also can pollute the environment, and is difficult to completely meet the actual application requirements.
Therefore, the development of the water-based insulating impregnating coating with excellent performance, safety and environmental protection has very important significance.
Disclosure of Invention
The invention aims to provide a waterborne epoxy insulating impregnating coating as well as a preparation method and application thereof.
The technical scheme adopted by the invention is as follows:
The waterborne epoxy insulating impregnating coating comprises the following components in percentage by mass:
aqueous epoxy emulsion: 45% -55%;
Curing agent: 4.5 to 5.5 percent;
catalyst: 0.4 to 0.6 percent;
leveling agent: 0.1 to 0.3 percent;
and (3) a thickening agent: 2% -4%;
anti-flash rust agent: 0.7 to 0.9 percent;
Water: the balance.
Preferably, the aqueous epoxy emulsion is EPICLON H-502-42W.
Preferably, the curing agent is at least one of methyl etherified homoiminomelamine resin and blocked aliphatic isocyanate.
Further preferably, the curing agent is methyl etherified homoiminomelamine resin.
Still more preferably, the curing agent is CYMEL 323 of zhan new resins limited.
Preferably, the catalyst is at least one of dodecylbenzene sulfonic acid, dinonylnaphthalene disulfonic acid and p-toluene sulfonic acid.
Further preferably, the catalyst is dodecylbenzene sulfonic acid.
Still more preferably, the catalyst is CYCAT 6020 from Zhan Xin resin Co., ltd.
Preferably, the leveling agent is at least one of polydimethylsiloxane, polyether modified polysiloxane, acrylate homo/copolymer and alkyne diol nonionic surfactant.
Further preferably, the leveling agent is polyether modified polysiloxane.
Still more preferably, the leveling agent is TEGO-4100.
Preferably, the thickener is at least one of hydroxyethyl cellulose, an acrylic acid-base swelling thickener and a polyurethane association thickener.
Further preferably, the thickener is a polyurethane associative thickener.
Still more preferably, the thickener is ULTRARHEO VR of coriolis.
Preferably, the anti-rust agent is an organozinc chelate.
Further preferably, the anti-flash rust agent is an anti-rust agent ASCOTRAN H a 14.
The preparation method of the aqueous epoxy insulating impregnating coating comprises the following steps: and uniformly mixing and stirring the aqueous epoxy emulsion, the curing agent, the catalyst, the leveling agent, the thickening agent, the anti-flash rust agent and water to obtain the aqueous epoxy insulating impregnating coating.
Preferably, the stirring is performed at a stirring speed of 800-1000 r/min for 20-40 min.
An aqueous epoxy insulating impregnating coating as described above is used for the application of corrosion protection insulation to rotors, stators or coils.
The beneficial effects of the invention are as follows: the aqueous epoxy insulating impregnating coating disclosed by the invention has the advantages of excellent storage stability, low VOC (volatile organic compound) release amount, low production cost, easiness in obtaining raw materials and the like, and the formed paint film is high in hardness, large in adhesive force, excellent in insulating property and excellent in mechanical property, and is suitable for various motor rotors, stators, various types of coils and other products.
Detailed Description
The invention is further illustrated and described below in connection with specific examples.
Example 1:
An aqueous epoxy insulating impregnating coating, the composition of which is shown in the following table:
TABLE 1 composition of waterborne epoxy insulating impregnating coating
The preparation method of the aqueous epoxy insulating impregnating coating comprises the following steps:
Mixing the aqueous epoxy emulsion, the methyl etherified high imino melamine resin, the dodecylbenzene sulfonic acid, the polyether modified polysiloxane, the polyurethane associative thickener, the rust inhibitor ASCOTRAN H and deionized water, controlling the stirring speed to be 1000r/min, stirring for 30min, and standing for 2h to obtain the aqueous epoxy insulating impregnating coating.
Example 2:
An aqueous epoxy insulating impregnating coating, the composition of which is shown in the following table:
TABLE 2 composition of waterborne epoxy insulating impregnating coating
The preparation method of the aqueous epoxy insulating impregnating coating comprises the following steps:
Mixing the aqueous epoxy emulsion, the methyl etherified high imino melamine resin, the dodecylbenzene sulfonic acid, the polyether modified polysiloxane, the polyurethane associative thickener, the rust inhibitor ASCOTRAN H and deionized water, controlling the stirring speed to be 1000r/min, stirring for 30min, and standing for 2h to obtain the aqueous epoxy insulating impregnating coating.
Example 3:
An aqueous epoxy insulating impregnating coating, the composition of which is shown in the following table:
TABLE 3 composition of waterborne epoxy insulating impregnating coating
The preparation method of the aqueous epoxy insulating impregnating coating comprises the following steps:
Mixing the aqueous epoxy emulsion, the methyl etherified high imino melamine resin, the dodecylbenzene sulfonic acid, the polyether modified polysiloxane, the polyurethane associative thickener, the rust inhibitor ASCOTRAN H and deionized water, controlling the stirring speed to be 1000r/min, stirring for 30min, and standing for 2h to obtain the aqueous epoxy insulating impregnating coating.
Example 4:
An aqueous epoxy insulating impregnating coating, the composition of which is shown in the following table:
TABLE 4 composition of waterborne epoxy insulating impregnating coating
The preparation method of the aqueous epoxy insulating impregnating coating comprises the following steps:
Mixing the aqueous epoxy emulsion, the methyl etherified high imino melamine resin, the dodecylbenzene sulfonic acid, the polyether modified polysiloxane, the polyurethane associative thickener, the rust inhibitor ASCOTRAN H and deionized water, controlling the stirring speed to be 1000r/min, stirring for 30min, and standing for 2h to obtain the aqueous epoxy insulating impregnating coating.
Comparative example:
An aqueous epoxy insulating impregnating coating, the composition of which is shown in the following table:
TABLE 5 composition of waterborne epoxy insulating impregnating coating
The preparation method of the aqueous epoxy insulating impregnating coating comprises the following steps:
Mixing the aqueous epoxy emulsion, the methyl etherified high imino melamine resin, the dodecylbenzene sulfonic acid, the polyether modified polysiloxane, the acrylic acid-base swelling thickener, the rust inhibitor ASCOTRAN H and deionized water, controlling the stirring speed to be 1000r/min, stirring for 30min, and standing for 2h to obtain the aqueous epoxy insulating impregnating coating.
Performance test:
the results of the performance test of the aqueous epoxy insulating impregnating coatings in examples 1 to 4 and comparative examples are shown in the following table:
TABLE 6 Performance test results of waterborne epoxy insulating impregnating coatings
Note that:
Pencil hardness, adhesion, neutral salt spray resistance, viscosity, storage stability and surface resistivity test the preparation process of the paint film sample: uniformly attaching a water-based epoxy insulating impregnating coating sample on the surface of the tin plate by adopting an impregnating method, and then putting the tin plate into an oven to bake at 120 ℃ for 60min;
solid content: the test is carried out by referring to 'GB/T1725-2007 determination of non-volatile matters content of paint, varnish and plastics';
pencil hardness: the paint film hardness is measured by referring to GB/T6739-2006 colored paint and varnish pencil method;
Adhesion force: the test was carried out with reference to "GB/T9286-1998 cross-cut test of paint and varnish films";
neutral salt spray resistance: testing is carried out by referring to 'measurement of neutral salt spray resistance of GB/T1771-2007 color paint and varnish';
Viscosity: the testing is carried out by adopting a rock field NK-2 viscosity cup, the viscosity cup is required to be completely immersed into the paint, and then the timing by a stopwatch is started at the moment of extracting the viscosity cup until the paint breaks, the timing is stopped, the timing t on the stopwatch is recorded, and the average value is taken after repeating for three times to be recorded as the viscosity of the paint;
storage stability: the test is carried out by referring to the GB/T6753.3-1986 paint storage stability test method;
Surface resistivity: the test was performed with reference to "GB/T1410-2006 solid insulation volume resistivity and surface resistivity test method".
As can be seen from table 6:
1) The aqueous epoxy insulating impregnating coatings in examples 1 to 4 are excellent in storage stability, the adhesive force of the formed paint films can reach 0 level, and the adhesive force of the paint films to the base materials is high as shown by a 24-hour neutral salt spray resistance test;
2) The surface resistivity of the paint films prepared from the aqueous epoxy insulating impregnating coatings in examples 1 to 4 can reach more than 1.1X10 14, which shows that the paint films have excellent insulating performance;
3) The hardness of the paint films prepared from the waterborne epoxy insulating impregnating coatings in examples 2 to 4 can reach the F level (the hardness of the paint film prepared from the waterborne epoxy insulating impregnating coating in example 1 is HB level, probably because the addition amount of the thickener is larger, the viscosity of the paint is larger, the paint hanging amount on the surface of the substrate is increased, the thickness of the paint film is increased, and the hardness of the paint film is reduced), which indicates that the hardness of the paint film is large;
4) The aqueous epoxy insulating impregnating coating in the comparative example precipitates after 30 days of heat storage, and the poor storage stability of the coating is probably caused by poor compatibility of the acrylic acid-base swelling type thickener and the system;
5) The hardness of a paint film prepared from the aqueous epoxy insulating impregnating coating in the comparative example is low, the neutral salt spray resistance performance is poor, the insulating performance is poor, the comprehensive performance is poor, and the crosslinking degree of the paint film is low probably due to the fact that the consumption of a curing agent is low.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (4)
1. The waterborne epoxy insulating impregnating coating is characterized by comprising the following components in percentage by mass:
aqueous epoxy emulsion: 45% -55%;
curing agent: 4.5 to 5.5 percent;
catalyst: 0.4 to 0.6 percent;
leveling agent: 0.1 to 0.3 percent;
and (3) a thickening agent: 2% -4%;
Anti-flash rust agent: 0.7 to 0.9 percent;
water: the balance;
The aqueous epoxy emulsion is H-502-42W of EPICLON company;
the curing agent is CYMEL 323 of Zhan Xin resin Co., ltd;
the catalyst is CYCAT 6020 of Zhan Xin resin Co., ltd;
the leveling agent is TEGO-4100;
the thickener is ULTRARHEO VR of German Kerick;
the anti-flash rust agent is an anti-rust agent ASCOTRAN H and 38314.
2. A method for preparing the aqueous epoxy insulating impregnating coating as claimed in claim 1, comprising the steps of: and uniformly mixing and stirring the aqueous epoxy emulsion, the curing agent, the catalyst, the leveling agent, the thickening agent, the anti-flash rust agent and water to obtain the aqueous epoxy insulating impregnating coating.
3. The preparation method according to claim 2, characterized in that: the stirring is carried out under the condition that the stirring speed is 800 r/min-1000 r/min, and the stirring time is 20 min-40 min.
4. Use of the aqueous epoxy insulating impregnating varnish according to claim 1 for the corrosion protection insulation of rotors, stators or coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310326579.XA CN116376398B (en) | 2023-03-30 | 2023-03-30 | Water-based epoxy insulating impregnating coating and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310326579.XA CN116376398B (en) | 2023-03-30 | 2023-03-30 | Water-based epoxy insulating impregnating coating and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116376398A CN116376398A (en) | 2023-07-04 |
| CN116376398B true CN116376398B (en) | 2024-04-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087607A (en) * | 2013-01-11 | 2013-05-08 | 株洲时代新材料科技股份有限公司 | Single-component curable waterborne epoxy insulating paint and preparation method of waterborne epoxy insulating paint |
| CN110079191A (en) * | 2019-04-29 | 2019-08-02 | 浙江启墨新材料科技有限公司 | A kind of one-component flexible epoxy lotion and preparation method thereof |
| CN113652148A (en) * | 2021-09-28 | 2021-11-16 | 广州飞思合成材料有限公司 | Water-based epoxy insulating paint for high-frequency transformer and preparation method thereof |
-
2023
- 2023-03-30 CN CN202310326579.XA patent/CN116376398B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087607A (en) * | 2013-01-11 | 2013-05-08 | 株洲时代新材料科技股份有限公司 | Single-component curable waterborne epoxy insulating paint and preparation method of waterborne epoxy insulating paint |
| CN110079191A (en) * | 2019-04-29 | 2019-08-02 | 浙江启墨新材料科技有限公司 | A kind of one-component flexible epoxy lotion and preparation method thereof |
| CN113652148A (en) * | 2021-09-28 | 2021-11-16 | 广州飞思合成材料有限公司 | Water-based epoxy insulating paint for high-frequency transformer and preparation method thereof |
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