CN108864934A - A kind of RTV anti-pollution flashover coating - Google Patents
A kind of RTV anti-pollution flashover coating Download PDFInfo
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- CN108864934A CN108864934A CN201810757797.8A CN201810757797A CN108864934A CN 108864934 A CN108864934 A CN 108864934A CN 201810757797 A CN201810757797 A CN 201810757797A CN 108864934 A CN108864934 A CN 108864934A
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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
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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
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1675—Polyorganosiloxane-containing compositions
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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
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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Abstract
The invention discloses a kind of RTV anti-pollution flashover coating, each component including following mass fraction：35~50 parts of base rubber；1.5~2 parts of silicone oil；7~11 parts of aluminium hydroxide；3.5~8.5 parts of white carbon black；1.5~2.5 parts of iron oxide red；1~5 part of decabromodiphenyl oxide；30~35 parts of diluent；0.2~1 part of catalyst；1~2.5 part of crosslinking agent；1.5~3.5 parts of coupling agent.The present invention has good electric property and mechanical performance, and long service life can provide excellent antifouling work guarantee for electric power power transmission and transformation external insulation equipment.
Description
Technical field
The present invention relates to chemical technology fields, more particularly to a kind of RTV anti-pollution flashover coating.
Background technique
Insulator is the important external insulation equipment of ultra-high-tension power transmission line and substation.Pollution flashover refers to insulation of electrical installation surface
In humid conditions, soluble substance is gradually dissolved in water to the dunghill of attachment, forms one layer of conductive film in insulating surface, makes to insulate
The dielectric level of son substantially reduces, and occurs the phenomenon that strong electric discharge under the action of field of electric force.Existing room temperature vulcanized silicone rubber
(Room temperature vulcanized silicone rubber, RTV) anti-pollution flashover coating is in rivieras such as such as Guangdong
High temperature, high humidity, salt fog climatic environment under when running, be easy to appear peeling, dusting, the adhesive force decline and hydrophobicity to fall off
The aging phenomena such as decline.
Summary of the invention
To make up for the shortcomings of the above existing technologies, the present invention proposes a kind of RTV anti-pollution flashover coating, can protect on the insulator
Good adhesive force and hydrophobicity are held, good antifouling work guarantee is provided.
Technical problem of the invention is resolved by technical solution below：
A kind of RTV anti-pollution flashover coating, each component including following mass fraction：35~50 parts of base rubber；Silicone oil
1.5~2 parts；7~11 parts of aluminium hydroxide；3.5~8.5 parts of white carbon black；1.5~2.5 parts of iron oxide red；Decabromodiphenyl oxide 1
~5 parts；30~35 parts of diluent；0.2~1 part of catalyst；1~2.5 part of crosslinking agent；1.5~3.5 parts of coupling agent.
Preferably, the base rubber is hydroxyl-terminated injecting two methyl siloxane, and viscosity is 10000~35000cs.
Preferably, the viscosity of the silicone oil is 300-600cs.
Preferably, the aluminium hydroxide is hydrophobic type, and partial size is 3~10 microns, and the mass fraction of aluminium hydroxide is greater than
99.5%.
Preferably, the white carbon black is fume colloidal silica, and partial size is 10~20 nanometers.
Preferably, the iron oxide red is hydrophobic type, wherein the mass content of iron oxide is greater than 94%, and relative color strength is
95%~105%.
Preferably, the diluent is No. 120 solvent naphthas.
Preferably, the catalyst is dibutyl tin dilaurate.
Preferably, the crosslinking agent is：Three butanone of methyltrimethoxysilane, methyl tributanoximo silane and vinyl
Oximino silane three in mass ratio 1:0.3~0.5:1~1.5 mixture.
Preferably, the coupling agent is gamma-aminopropyl-triethoxy-silane, γ-methacryloxypropyl trimethoxy
Base silane and γ-(2,3- glycidoxy) propyl trimethoxy silicane three in mass ratio 1:0.5~0.8:2~3 mixing
Object.
The beneficial effect of the present invention compared with the prior art includes：
RTV anti-pollution flashover coating of the invention is particularly suitable for the climatic environment of high temperature, high humidity, salt fog, can be resistant to this kind of
Climatic environment and keep good hydrophobicity and adhesive force, have good electric property and mechanical performance, long service life can
To provide excellent antifouling work guarantee for electric power power transmission and transformation external insulation equipment.
Specific embodiment
The following further describes the present invention in combination with preferred embodiments.
A kind of RTV anti-pollution flashover coating, each component including following mass fraction：35~50 parts of base rubber；Silicone oil
1.5~2 parts；7~11 parts of aluminium hydroxide；3.5~8.5 parts of white carbon black；1.5~2.5 parts of iron oxide red；Decabromodiphenyl oxide 1
~5 parts；30~35 parts of diluent；0.2~1 part of catalyst；1~2.5 part of crosslinking agent；1.5~3.5 parts of coupling agent.
In a preferred embodiment, the base rubber be hydroxyl-terminated injecting two methyl siloxane, viscosity be 10000~
35000cs。
In a preferred embodiment, the viscosity of the silicone oil is 300-600cs.
In a preferred embodiment, the aluminium hydroxide is hydrophobic type, and partial size is 3~10 microns, aluminium hydroxide
Mass fraction is greater than 99.5%.
In a preferred embodiment, the white carbon black is fume colloidal silica, and partial size is 10~20 nanometers.Used receives
The fume colloidal silica of grain of rice diameter as nanofiller can be improved the anti-flammability of coating and to the weatherability of ultraviolet light.
In a preferred embodiment, the iron oxide red is hydrophobic type, wherein the mass content of iron oxide is greater than 94%, phase
It is 95%~105% to tinting strength, tinting power, can be further improved coating to warm resistance.
In a preferred embodiment, the diluent is No. 120 solvent naphthas.
In a preferred embodiment, the catalyst is dibutyl tin dilaurate.
In a preferred embodiment, the crosslinking agent is：Methyltrimethoxysilane, methyl tributanoximo silane and
Vinyl tributyl ketoximyl silane three in mass ratio 1:0.3~0.5:1~1.5 mixture.The crosslinking agent of compounding to grow
The strand for spending shorter base rubber is connected to become long chain using functional group a part of in crosslinking agent as medium.
In a preferred embodiment, the coupling agent is gamma-aminopropyl-triethoxy-silane, γ-methacryloxypropyl
Base propyl trimethoxy silicane and γ-(2,3- glycidoxy) propyl trimethoxy silicane three in mass ratio 1:0.5~
0.8:2~3 mixture.The coupling agent of compounding is main and base rubber reacts, the RTV anti-pollution flashover coating and glass after making discharging
The surfaces such as glass, porcelain can react, and coating can be improved to the cementability of ground.
Below by way of more specific embodiment, the present invention is further elaborated.
Embodiment 1
By 35 parts of hydroxyl-terminated injecting two methyl siloxane of viscosity 35000cs, 1.5 parts of the silicone oil of viscosity 500cs, hydrophobic type hydrogen
(3~10 microns of partial size, the mass fraction of aluminium hydroxide is greater than 99.5% to 7 parts of aluminium oxide, and surplus is inevitable impurity, such as
Sodium oxide molybdena, silica and iron oxide etc.), 3.5 parts of fume colloidal silica (partial size is 10~20 nanometers), hydrophobic type iron oxide red 1.5
Part (mass content of iron oxide is greater than 94%, and surplus is inevitable impurity), the relative color strength of iron oxide red is 95%~
105% (measuring according to standard DIN 6174No.038,2009-08-01), 1 part of decabromodiphenyl oxide, No. 120 35 parts of solvent naphtha are filled
Divide mixing, dispersion, grinding, pour into reaction kettle, and vacuumize -0.1MPa, catalyst dibutyltin dilaurylate 0.2 is added
Part, crosslinking agent (compounding mass ratio：Methyltrimethoxysilane：Methyl tributanoximo silane：Vinyl tributyl ketoximyl silane
=1:0.3:1) 1 part, coupling agent (compounding mass ratio：Gamma-aminopropyl-triethoxy-silane：γ-methacryloxypropyl three
Methoxy silane：γ-(2,3- glycidoxy) propyl trimethoxy silicane=1:0.5:2) it 1.5 parts, stirs and constant temperature electricity adds
Heat is to 70~80 degrees Celsius, feeding after 10h.RTV anti-pollution flashover coating obtained is coated in cleaned glass strip, applies thickness
Degree is 0.4mm, and by 1000h salt fog and the test of 1000h ultraviolet lighting, (experimental temperature is 50~60 DEG C, in condensation process middle ring
Vapor in border can condense in coating surface) after, it is 0 grade of cross-hatching that test, which obtains its adhesive force, and hydrophobicity is kept for HC1 grades,
By testing tearing strength, obtaining its tearing strength is 4.5~5.8kN/m, and measures power frequency disruptive field intensity in 20~28kV/
mm；And the coating of existing RTV anti-pollution flashover coating preparation Crosshatch adhesion after above-mentioned aging is 3 grades or more, hydrophobicity
HC3 grades are fallen to, tearing strength 3.5kN/m, power frequency disruptive field intensity is in 18kV/mm or less.
Embodiment 2
By 50 parts of hydroxyl-terminated injecting two methyl siloxane of viscosity 25000cs, 2 parts of the silicone oil of viscosity 400cs, hydrophobic type hydrogen-oxygen
Changing 11 parts of aluminium, (3~10 microns of partial size, the mass fraction of aluminium hydroxide is greater than 99.5%, and surplus is inevitable impurity, such as oxygen
Change sodium, silica and iron oxide etc.), 8.5 parts of fume colloidal silica (partial size is 10~20 nanometers), 2.5 parts of hydrophobic type iron oxide red
(mass content of iron oxide is greater than 94%, and surplus is inevitable impurity), the relative color strength of iron oxide red is 95%~105%
(measuring according to standard DIN 6174No.038,2009-08-01), 1 part of decabromodiphenyl oxide, No. 120 30 parts of solvent naphthas are sufficiently mixed
Splitting or integrating is dissipated, is ground, and is poured into reaction kettle, and vacuumize -0.1MPa, is added 1 part of catalyst dibutyltin dilaurylate, crosslinking
Agent (compounding mass ratio：Methyltrimethoxysilane：Methyl tributanoximo silane：Vinyl tributyl ketoximyl silane=1:
0.5:1.5) 2.5 parts, coupling agent (compounding mass ratio：Gamma-aminopropyl-triethoxy-silane：γ-methacryloxypropyl three
Methoxy silane：γ-(2,3- glycidoxy) propyl trimethoxy silicane=1:0.8:3) it 3.5 parts, stirs and constant temperature electricity adds
Heat is to 70~80 degrees Celsius, feeding after 18h.RTV anti-pollution flashover coating obtained is coated in cleaned glass strip, applies thickness
Degree is 0.4mm, and by 1000h salt fog and the test of 1000h ultraviolet lighting, (experimental temperature is 50~60 DEG C, in condensation process middle ring
Vapor in border can condense in coating surface) after, it is 0 grade of cross-hatching that test, which obtains its adhesive force, and hydrophobicity is kept for HC1 grades,
By testing tearing strength, obtaining its tearing strength is 4.5~6.5kN/m, and measures power frequency disruptive field intensity in 20~25kV/
mm；And the coating of existing RTV anti-pollution flashover coating preparation Crosshatch adhesion after above-mentioned aging is 3 grades or more, hydrophobicity
HC3 grades are fallen to, tearing strength 3.5kN/m, power frequency disruptive field intensity is in 18kV/mm or less.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those skilled in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, several equivalent substitute or obvious modifications can also be made, and performance or use is identical, all answered
When being considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of RTV anti-pollution flashover coating, which is characterized in that each component including following mass fraction：35~50 parts of base rubber；Silicone oil
1.5~2 parts；7~11 parts of aluminium hydroxide；3.5~8.5 parts of white carbon black；1.5~2.5 parts of iron oxide red；1~5 part of decabromodiphenyl oxide；It is dilute
Release 30~35 parts of agent；0.2~1 part of catalyst；1~2.5 part of crosslinking agent；1.5~3.5 parts of coupling agent.
2. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the base rubber is terminal hydroxy group polydimethylsiloxanes
Alkane, viscosity are 10000~35000cs.
3. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the viscosity of the silicone oil is 300-600cs.
4. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the aluminium hydroxide is hydrophobic type, and partial size is
3~10 microns, the mass fraction of aluminium hydroxide is greater than 99.5%.
5. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the white carbon black is fume colloidal silica, partial size
It is 10~20 nanometers.
6. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the iron oxide red is hydrophobic type, wherein iron oxide
Mass content be greater than 94%, relative color strength be 95%~105%.
7. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the diluent is No. 120 solvent naphthas.
8. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the catalyst is dibutyl tin dilaurate.
9. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the crosslinking agent is：Methyl trimethoxy oxygroup silicon
Alkane, methyl tributanoximo silane and vinyl tributyl ketoximyl silane three in mass ratio 1:0.3~0.5:1~1.5 it is mixed
Close object.
10. RTV anti-pollution flashover coating as described in claim 1, which is characterized in that the coupling agent is three ethoxy of γ-aminopropyl
Base silane, γ-methacryloxypropyl trimethoxy silane and γ-(2,3- glycidoxy) propyl trimethoxy silicane
Three in mass ratio 1:0.5~0.8:2~3 mixture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757797.8A CN108864934A (en) | 2018-07-11 | 2018-07-11 | A kind of RTV anti-pollution flashover coating |
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| CN201810757797.8A CN108864934A (en) | 2018-07-11 | 2018-07-11 | A kind of RTV anti-pollution flashover coating |
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| CN201810757797.8A Pending CN108864934A (en) | 2018-07-11 | 2018-07-11 | A kind of RTV anti-pollution flashover coating |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504547A (en) * | 2018-12-11 | 2019-03-22 | 北京国电富通科技发展有限责任公司 | Cleaning renovation agent for power external insulation equipment |
| CN109852236A (en) * | 2018-12-29 | 2019-06-07 | 国网山东省电力公司电力科学研究院 | A kind of transmission tower bird repellent coating based on Odor stimulation |
| CN110903756A (en) * | 2019-11-22 | 2020-03-24 | 国网江西省电力有限公司电力科学研究院 | Intelligent temperature-sensing color-changing RTV coating and preparation method thereof |
| CN112940619A (en) * | 2021-03-16 | 2021-06-11 | 甘肃欣利达电力器材有限公司 | Multifunctional composite coating for power transmission line of power system |
| CN113122130A (en) * | 2021-04-30 | 2021-07-16 | 河北诚和龙盛电力工程有限公司 | Improved anti-pollution flashover coating and preparation method thereof |
| CN113278361A (en) * | 2021-05-14 | 2021-08-20 | 武汉露能科技有限公司 | High-voltage-resistance long-acting stable insulating paint applied to high-voltage power transmission line and preparation method thereof |
| CN115340819A (en) * | 2022-09-02 | 2022-11-15 | 华北电力科学研究院有限责任公司 | Anti-pollution flashover coating for external insulation of power equipment and preparation method thereof |
| CN115725236A (en) * | 2022-12-09 | 2023-03-03 | 浙江省电力锅炉压力容器检验所有限公司 | High-performance nano organic-inorganic hybrid anti-pollution flashover coating for electrical equipment and preparation method thereof |
| CN116855170A (en) * | 2023-08-17 | 2023-10-10 | 国网黑龙江省电力有限公司电力科学研究院 | RTV anti-pollution flashover coating and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504547A (en) * | 2018-12-11 | 2019-03-22 | 北京国电富通科技发展有限责任公司 | Cleaning renovation agent for power external insulation equipment |
| CN109852236A (en) * | 2018-12-29 | 2019-06-07 | 国网山东省电力公司电力科学研究院 | A kind of transmission tower bird repellent coating based on Odor stimulation |
| CN110903756A (en) * | 2019-11-22 | 2020-03-24 | 国网江西省电力有限公司电力科学研究院 | Intelligent temperature-sensing color-changing RTV coating and preparation method thereof |
| CN110903756B (en) * | 2019-11-22 | 2022-03-11 | 国网江西省电力有限公司电力科学研究院 | Intelligent temperature-sensing color-changing RTV coating and preparation method thereof |
| CN112940619A (en) * | 2021-03-16 | 2021-06-11 | 甘肃欣利达电力器材有限公司 | Multifunctional composite coating for power transmission line of power system |
| CN113122130A (en) * | 2021-04-30 | 2021-07-16 | 河北诚和龙盛电力工程有限公司 | Improved anti-pollution flashover coating and preparation method thereof |
| CN113122130B (en) * | 2021-04-30 | 2022-02-11 | 河北诚和龙盛电力工程有限公司 | Improved anti-pollution flashover coating and preparation method thereof |
| CN113278361A (en) * | 2021-05-14 | 2021-08-20 | 武汉露能科技有限公司 | High-voltage-resistance long-acting stable insulating paint applied to high-voltage power transmission line and preparation method thereof |
| CN115340819A (en) * | 2022-09-02 | 2022-11-15 | 华北电力科学研究院有限责任公司 | Anti-pollution flashover coating for external insulation of power equipment and preparation method thereof |
| CN115725236A (en) * | 2022-12-09 | 2023-03-03 | 浙江省电力锅炉压力容器检验所有限公司 | High-performance nano organic-inorganic hybrid anti-pollution flashover coating for electrical equipment and preparation method thereof |
| CN116855170A (en) * | 2023-08-17 | 2023-10-10 | 国网黑龙江省电力有限公司电力科学研究院 | RTV anti-pollution flashover coating and preparation method thereof |
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Application publication date: 20181123 |