CN111471396A - Anti-icing coating for transmission cable and preparation method thereof - Google Patents
Anti-icing coating for transmission cable and preparation method thereof Download PDFInfo
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- CN111471396A CN111471396A CN202010476350.0A CN202010476350A CN111471396A CN 111471396 A CN111471396 A CN 111471396A CN 202010476350 A CN202010476350 A CN 202010476350A CN 111471396 A CN111471396 A CN 111471396A
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- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- 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
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- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses an anti-icing coating for a power transmission cable, which is prepared from the following raw materials in parts by weight: 30-45 parts of fluorosilicone resin, 20-30 parts of phosphate modified acrylic emulsion, 5-15 parts of tetrafluoroethylene-ethylene copolymer, 5-10 parts of hollow glass beads, 1-3 parts of dispersing agent, 0.5-1 part of flatting agent, 0.1-0.5 part of defoaming agent, 1-2 parts of coupling agent and 20-40 parts of solvent. The anti-icing coating disclosed by the invention is excellent in hydrophobic property and good in adhesion property with a power transmission cable, so that the anti-icing property of the cable is excellent.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to an anti-icing coating for a power transmission cable and a preparation method thereof.
Background
The cable icing is formed on the surface of the cable due to various meteorological reasons, comprises factors such as temperature, humidity, cold and warm air convection, circulation, wind speed and the like, and is classified into basic types such as rime icing, mixed freezing icing, white frost, snow accumulation and the like according to forming conditions and damage degree. The rime mixing is a composite icing process, namely rime firstly and rime secondly, and is an alternative ice form, so that the growth speed is high, the safe operation of a power transmission line is seriously damaged, and huge economic loss is caused. In recent years, people coat the surface of a cable with an anti-icing coating to form a hydrophobic coating, so that the icing is difficult to generate high adhesion, and the damage of the icing to the cable is reduced.
Chinese patent with publication number CN102140288B discloses an anti-icing coating containing an electrolyte, which comprises 5-90% of organic silicon modified polyelectrolyte, 0-80% of fluorine-silicon modified acrylate, 0.1-20% of nano material, 0-60% of solvent, 0-30% of pigment, 0-5% of leveling agent, 0-10% of flame retardant and 0-3% of anti-corrosion bactericide by mass percent. And uniformly mixing and grinding the above substances and the dosages to obtain the anti-icing coating. The anti-icing coating is coated on the surfaces of high-voltage cables, iron towers, communication lines, aircrafts and other parts, so that the icing of the high-voltage cables, the iron towers, the communication lines, the aircrafts and the like can be effectively prevented. The method is simple and easy in engineering, convenient to control, low in cost and good in using effect. However, the contact angle of the coating is small, the hydrophobic effect is poor, and the polyelectrolyte monomer is required to be adopted, so that the manufacturing cost is high.
Chinese patent with publication number CN105062168B discloses an anti-icing coating for transmission cables, belongs to the technical field of coatings, solves the problem of poor anti-icing effect in the prior art, and consists of the following raw materials in parts by weight: 10-20 parts of tridecyl methacrylate, 5-10 parts of fluorocarbon silicone oil, 15-30 parts of polyfluorinated ethylene propylene, 10-30 parts of silicon dioxide, 10-20 parts of toluene, 20-30 parts of cyclohexanone, 2-7 parts of paraffin, 1-3 parts of aminopropyl triethoxysilane, 10-20 parts of methyl cellulose, 15-30 parts of phenolic resin, 1-3 parts of dimethyl silicone oil, 2-5 parts of nickel dibutyl dithiocarbamate and 10-20 parts of ethanol. The invention can be widely applied to various transmission cables. However, the patent has many kinds of raw materials and high production cost.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide an anti-icing coating for a power transmission cable and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
30-45 parts of fluorosilicone resin, 20-30 parts of phosphate modified acrylic emulsion, 5-15 parts of tetrafluoroethylene-ethylene copolymer, 5-10 parts of hollow glass beads, 1-3 parts of dispersing agent, 0.5-1 part of flatting agent, 0.1-0.5 part of defoaming agent, 1-2 parts of coupling agent and 20-40 parts of solvent.
Preferably, the dispersing agent is fatty alcohol-polyoxyethylene ether or fatty acid-polyglycol ester.
Preferably, the leveling agent is BYK300, BYK310 or BYK 399.
Preferably, the defoaming agent is BYK-057 or BYK-028.
Preferably, the coupling agent is vinyltriethoxysilane, aminopropyltriethoxysilane or gamma-aminopropyltrimethoxysilane.
Preferably, the solvent is ethyl acetate or butanone.
The preparation method of the anti-icing coating for the power transmission cable comprises the following steps:
ultrasonically dispersing hollow glass beads, a dispersing agent and a solvent uniformly, then adding fluorosilicone resin, phosphate modified acrylic emulsion, tetrafluoroethylene-ethylene copolymer and a coupling agent, uniformly mixing, and finally adding a leveling agent and a defoaming agent, and uniformly mixing to obtain the coating.
The invention has the following positive beneficial effects:
1. the fluorosilicone resin has excellent temperature resistance, anti-adhesion, chemical resistance, antifouling property and decorative property; phosphate groups are added into the acrylate emulsion to enable the coating to be easily and tightly adhered to a cable to form a compact protective film, so that the antifouling and corrosion-resistant performance of the coating is improved; the tetrafluoroethylene-ethylene copolymer is light-transmitting, light, self-cleaning, tough and flame-retardant; the hollow glass beads improve the strength of the coating and reduce the weight of the coating; all the raw materials are bonded together through a coupling agent, so that the hydrophobic property and the mechanical strength of the coating are improved. According to the invention, various raw materials are used for coating the power transmission cable, the contact angle of the obtained anti-icing coating is more than or equal to 157 degrees, the rolling angle is less than or equal to 7 degrees, and the hydrophobic property is excellent; the adhesion force with the cable is 0 grade, and the adhesion performance is excellent; respectively at 10% H2SO4Soaking in 10% NaOH solution for 7 days, the surface is unchanged, and the corrosion resistance is excellent; when the test is carried out for 12 hours under the condition of rime at the temperature of minus 20 ℃, the ice coating phenomenon on the surface of the cable is avoided, and the ice resistance is excellent.
2. The anti-icing coating disclosed by the invention has the advantages of uniform and sufficient mixing of raw materials, good dispersibility, convenience in coating, simple preparation method and reduction of production cost.
Detailed Description
The invention will be further illustrated with reference to some specific embodiments.
Example 1
An anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
30 parts of fluorosilicone resin, 20 parts of phosphate modified acrylic emulsion, 5 parts of tetrafluoroethylene-ethylene copolymer, 5 parts of hollow glass beads, 1 part of dispersing agent, 0.5 part of flatting agent, 0.1 part of defoaming agent, 1 part of coupling agent and 20 parts of solvent.
The dispersing agent is fatty alcohol-polyoxyethylene ether.
The leveling agent is BYK 300.
The defoaming agent is BYK-057.
The coupling agent is vinyl triethoxysilane.
The solvent is butanone.
The preparation method of the anti-icing coating for the power transmission cable comprises the following steps:
ultrasonically dispersing hollow glass beads, a dispersing agent and a solvent uniformly, then adding fluorosilicone resin, phosphate modified acrylic emulsion, tetrafluoroethylene-ethylene copolymer and a coupling agent, uniformly mixing, and finally adding a leveling agent and a defoaming agent, and uniformly mixing to obtain the coating.
Example 2
An anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
32 parts of fluorosilicone resin, 23 parts of phosphate modified acrylic emulsion, 6 parts of tetrafluoroethylene-ethylene copolymer, 6 parts of hollow glass beads, 1.4 parts of dispersing agent, 0.7 part of flatting agent, 0.2 part of defoaming agent, 1.1 part of coupling agent and 25 parts of solvent.
The dispersant is fatty acid polyglycol ester.
The leveling agent is BYK 399.
The defoaming agent is BYK-057.
The coupling agent is aminopropyl triethoxysilane.
The solvent is ethyl acetate.
The preparation of the anti-icing coating for electric transmission cables described above is described in example 1.
Example 3
An anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
36 parts of fluorosilicone resin, 25 parts of phosphate modified acrylic emulsion, 8 parts of tetrafluoroethylene-ethylene copolymer, 7 parts of hollow glass beads, 1.5 parts of dispersing agent, 0.7 part of flatting agent, 0.2 part of defoaming agent, 1.4 parts of coupling agent and 29 parts of solvent.
The dispersant is fatty acid polyglycol ester.
The leveling agent is BYK 310.
The defoaming agent is BYK-028.
The coupling agent is gamma-aminopropyl trimethoxy silane.
The solvent is butanone.
The preparation of the anti-icing coating for electric transmission cables described above is described in example 1.
Example 4
An anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
40 parts of fluorosilicone resin, 25 parts of phosphate modified acrylic emulsion, 10 parts of tetrafluoroethylene-ethylene copolymer, 8 parts of hollow glass beads, 1.8 parts of dispersing agent, 0.9 part of flatting agent, 0.3 part of defoaming agent, 1.6 parts of coupling agent and 32 parts of solvent.
The dispersing agent is fatty alcohol-polyoxyethylene ether.
The leveling agent is BYK 300.
The defoaming agent is BYK-028.
The coupling agent is aminopropyl triethoxysilane.
The solvent is ethyl acetate.
The preparation of the anti-icing coating for electric transmission cables described above is described in example 1.
Example 5
An anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
42 parts of fluorosilicone resin, 28 parts of phosphate modified acrylic emulsion, 12 parts of tetrafluoroethylene-ethylene copolymer, 9 parts of hollow glass beads, 2.5 parts of dispersing agent, 1 part of flatting agent, 0.4 part of defoaming agent, 1.9 parts of coupling agent and 37 parts of solvent.
The dispersing agent is fatty alcohol-polyoxyethylene ether.
The leveling agent is BYK 310.
The defoaming agent is BYK-057.
The coupling agent is vinyl triethoxysilane.
The solvent is ethyl acetate.
The preparation of the anti-icing coating for electric transmission cables described above is described in example 1.
Example 6
An anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
45 parts of fluorosilicone resin, 30 parts of phosphate modified acrylic emulsion, 15 parts of tetrafluoroethylene-ethylene copolymer, 10 parts of hollow glass beads, 3 parts of dispersing agent, 1 part of flatting agent, 0.5 part of defoaming agent, 2 parts of coupling agent and 40 parts of solvent.
The dispersant is fatty acid polyglycol ester.
The leveling agent is BYK 399.
The defoaming agent is BYK-028.
The coupling agent is aminopropyl triethoxysilane.
The solvent is butanone.
The preparation of the anti-icing coating for electric transmission cables described above is described in example 1.
Comparative example 1
This example is substantially the same as example 4, and the same points are not repeated, except that: replacing the fluorosilicone resin and the phosphate modified acrylic emulsion with the fluorosilicone modified acrylic resin, namely:
an anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
65 parts of fluorine-silicon modified acrylic resin, 10 parts of tetrafluoroethylene-ethylene copolymer, 8 parts of hollow glass beads, 1.8 parts of dispersing agent, 0.9 part of flatting agent, 0.3 part of defoaming agent, 1.6 parts of coupling agent and 32 parts of solvent.
Comparative example 2
This example is substantially the same as example 4, and the same points are not repeated, except that: replacing the tetrafluoroethylene-ethylene copolymer with polyperfluoroethylpropylene, namely:
an anti-icing coating for a power transmission cable is prepared from the following raw materials in parts by weight:
40 parts of fluorine-silicon resin, 25 parts of phosphate modified acrylic emulsion, 10 parts of fluorinated ethylene propylene, 8 parts of hollow glass beads, 1.8 parts of dispersing agent, 0.9 part of flatting agent, 0.3 part of defoaming agent, 1.6 parts of coupling agent and 32 parts of solvent.
The anti-icing coating prepared in examples 1 to 6 of the present invention and comparative examples 1 to 2 was coated on a power transmission cable according to a conventional method, and performance tests of contact angle, roll angle, adhesion, acid resistance, alkali resistance, and ice resistance were performed, respectively, and the test results are shown in table 1.
TABLE 1 examination results of properties of ice coating preventing paints prepared in inventive examples 1 to 6 and comparative examples 1 to 2
As can be seen from Table 1, the contact angle of the anti-icing coating obtained by the invention is more than or equal to 157 degrees, the rolling angle is less than or equal to 7 degrees, and the hydrophobic property is excellent; the adhesion force with the cable is 0 grade, and the adhesion performance is excellent; respectively at 10% H2SO4Soaking in 10% NaOH solution for 7 days, the surface is unchanged, and the corrosion resistance is excellent; when the test is carried out for 12 hours under the condition of rime at the temperature of minus 20 ℃, the ice coating phenomenon on the surface of the cable is avoided, and the ice resistance is excellent.
When the fluorosilicone resin and the phosphate ester modified acrylic emulsion are replaced by the fluorosilicone modified acrylic resin in the comparative example 1 and the tetrafluoroethylene-ethylene copolymer is replaced by the polyfluorinated ethylene propylene in the comparative example 2, the contact angle of the coating is obviously reduced, the rolling angle is obviously increased, and the hydrophobic property is deteriorated; and are each at 10% H2SO4Soaking in 10% NaOH solution for 7 days, the surface coating falls off or bubbles and spots appear, and the corrosion resistance is also reduced; and when the test is carried out for 12 hours under the condition of rime at the temperature of minus 20 ℃, the ice coating phenomenon is generated on the surface of the cable.
Claims (7)
1. An anti-icing coating for a power transmission cable is characterized by being prepared from the following raw materials in parts by weight:
30-45 parts of fluorosilicone resin, 20-30 parts of phosphate modified acrylic emulsion, 5-15 parts of tetrafluoroethylene-ethylene copolymer, 5-10 parts of hollow glass beads, 1-3 parts of dispersing agent, 0.5-1 part of flatting agent, 0.1-0.5 part of defoaming agent, 1-2 parts of coupling agent and 20-40 parts of solvent.
2. The anti-icing coating for power transmission cables as claimed in claim 1, wherein the dispersant is fatty alcohol-polyoxyethylene ether or fatty acid-polyethylene glycol ester.
3. The anti-icing coating for power transmission cables of claim 1 wherein the leveling agent is BYK300, BYK310 or BYK 399.
4. The anti-icing coating for power transmission cables as claimed in claim 1, wherein said anti-foaming agent is BYK-057 or BYK-028.
5. The anti-icing coating for power transmission cables according to claim 1, wherein the coupling agent is vinyltriethoxysilane, aminopropyltriethoxysilane or gamma-aminopropyltrimethoxysilane.
6. The ice-coating preventing paint for electric transmission cable according to claim 1, wherein the solvent is ethyl acetate or butanone.
7. A method for preparing the anti-icing coating of any one of claims 1 to 6, characterized by comprising the following steps: ultrasonically dispersing hollow glass beads, a dispersing agent and a solvent uniformly, then adding fluorosilicone resin, phosphate modified acrylic emulsion, tetrafluoroethylene-ethylene copolymer and a coupling agent, uniformly mixing, and finally adding a leveling agent and a defoaming agent, and uniformly mixing to obtain the coating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010476350.0A CN111471396A (en) | 2020-05-29 | 2020-05-29 | Anti-icing coating for transmission cable and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010476350.0A CN111471396A (en) | 2020-05-29 | 2020-05-29 | Anti-icing coating for transmission cable and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114350255A (en) * | 2021-12-31 | 2022-04-15 | 北京安连科技股份有限公司 | Environment-friendly anti-icing coating and preparation method thereof |
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| CN105331287A (en) * | 2015-11-17 | 2016-02-17 | 国网河南省电力公司周口供电公司 | Anti-icing nano-paint for surfaces of ultra-high-voltage lines in mountainous areas and preparation method of anti-icing nano-paint |
| CN107556912A (en) * | 2017-10-26 | 2018-01-09 | 国网河南省电力公司检修公司 | A kind of antifouling work coatings applied to power equipment |
| CN107663416A (en) * | 2017-10-26 | 2018-02-06 | 国网河南省电力公司周口供电公司 | Transmission line of electricity external insulation novel antifouling dodges spraying composite material |
| CN108250347A (en) * | 2017-12-19 | 2018-07-06 | 吉力水性新材料科技（珠海）有限公司 | A kind of phosphate modified Acrylate Core-shell Emulsion of salt spray resistance |
| CN109721675A (en) * | 2018-12-18 | 2019-05-07 | 浙江巨化技术中心有限公司 | A kind of ethylene-tetrafluoroethylene copolymer and preparation method thereof |
-
2020
- 2020-05-29 CN CN202010476350.0A patent/CN111471396A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331287A (en) * | 2015-11-17 | 2016-02-17 | 国网河南省电力公司周口供电公司 | Anti-icing nano-paint for surfaces of ultra-high-voltage lines in mountainous areas and preparation method of anti-icing nano-paint |
| CN107556912A (en) * | 2017-10-26 | 2018-01-09 | 国网河南省电力公司检修公司 | A kind of antifouling work coatings applied to power equipment |
| CN107663416A (en) * | 2017-10-26 | 2018-02-06 | 国网河南省电力公司周口供电公司 | Transmission line of electricity external insulation novel antifouling dodges spraying composite material |
| CN108250347A (en) * | 2017-12-19 | 2018-07-06 | 吉力水性新材料科技（珠海）有限公司 | A kind of phosphate modified Acrylate Core-shell Emulsion of salt spray resistance |
| CN109721675A (en) * | 2018-12-18 | 2019-05-07 | 浙江巨化技术中心有限公司 | A kind of ethylene-tetrafluoroethylene copolymer and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114350255A (en) * | 2021-12-31 | 2022-04-15 | 北京安连科技股份有限公司 | Environment-friendly anti-icing coating and preparation method thereof |
| CN114350255B (en) * | 2021-12-31 | 2022-12-02 | 北京安连科技股份有限公司 | Environment-friendly anti-icing coating and preparation method thereof |
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Application publication date: 20200731 |