CN110054988A - A kind of anti-pollution flashover coating and its preparation method and application - Google Patents
A kind of anti-pollution flashover coating and its preparation method and application Download PDFInfo
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- CN110054988A CN110054988A CN201910351277.1A CN201910351277A CN110054988A CN 110054988 A CN110054988 A CN 110054988A CN 201910351277 A CN201910351277 A CN 201910351277A CN 110054988 A CN110054988 A CN 110054988A
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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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- 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
- 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
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- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- 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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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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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- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
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Abstract
The present invention provides a kind of anti-pollution flashover coatings and its preparation method and application, the anti-pollution flashover coating includes following component by weight: 25~40 parts of organosilicon polymer, 4~5 parts of crosslinking agent, 0.2~0.5 part of catalyst, 4~7 parts of white carbon black, 5~8 parts of nanometer calcium carbonate, 60~90 parts of compound flame retardant；Anti-pollution flashover coating provided by the invention, there is the compound flame retardant of micron order and nano-scale dimension by introducing, improve amount of flame-retardant agent, improve flame retardant property, simultaneously, compound flame retardant and white carbon black, nanometer calcium carbonate it is reasonably combined, form micro-nano structure, be able to ascend the hydrophobic performance of coating, water contact angle can reach 120 ° or more, promotion while to realize flame retardant property and hydrophobic performance, finally greatly promotes the anti-fouling flashover performance of coating, extends the service life of coating.
Description
Technical field
The invention belongs to paint field, it is related to a kind of anti-pollution flashover coating and its preparation method and application.
Background technique
Pollution flashover accident destroys the normal operation of electric system, causes large-area power-cuts, further normally social to people
Production and life affect greatly, and are considered as the No.1 formidable enemy of safe operation of power system, thus to pollution flashover accident and its prevent
The research controlled also obtains increasingly in-depth study.The generating process for being presently believed to pollution flashover accident is divided into four-stage: a. insulation
The contamination in sublist face；B. under moist environmental conditions insulating surface wetting；C. under the fuel factor effect of surface Leakage Current
There is dry area, to change voltage's distribiuting and cause shelf depreciation；D. the development of shelf depreciation and lead to flashover.Therefore want to take
The effect for obtaining antifouling work, need to take certain technological means to cut off one or several processes of aforementioned four process, can obtain
Corresponding anti-fouling effect.
Room temperature vulcanized silicone rubber coating (RTV coating) is coated on insulator surface, good anti-fouling effect can be obtained,
Thus many researchers and correlation engineering personnel have carried out a large amount of research and application.The reason of obtaining anti-fouling effect exists
There is certain hydrophobicity (WCA=108 ° of water contact angle) in RTV coating, above-mentioned b process can be cut off；It is introduced in RTV coating
The substance for absorbing electric arc and heat, can be cut off above-mentioned c, d process, to obtain anti-fouling effect.Therefore hydrophobicity and anti-flammability
Promotion, can promote the anti-fouling effect of coating and prolong its service life.
And the hydrophobicity for promoting coating is focused primarily upon about the research of antifouling work RTV coating at present.Mainly pass through introducing
The lower fluorine-containing silicon rubber of surface energy, CN101942200A disclose a kind of composition for anti-pollution flashover coating, by weight
Number meter, the composition include 25~40 parts of hydroxy-terminated polysiloxane, 5~15 parts of terminal hydroxy group fluorinated polysiloxane, nanometer titanium dioxide
It is 6.0~8.0 parts of silicon, 2.5~3.5 parts of nanometer calcium carbonate, 4.8~5.5 parts of crosslinking agent, 3.5~4.5 parts of wetting agent, silane coupled
0.8~1.3 part and 0.2~0.4 part of catalyst of agent.Using the fluorine-containing silicon rubber of low-surface-energy, coating surface is set to reduce, hydrophobicity
It improves, and then obtains good anti-fouling effect and longer service life.This method is by introducing low-surface energy substance
After fluorinated polysiloxane, hydrophobicity is promoted.
CN108864934A discloses a kind of RTV anti-pollution flashover coating, each component including following mass fraction: base rubber 35~
50 parts；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；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, but this side
There is still a need for further promoted for the RTV anti-pollution flashover coating hydrophobicity of method preparation.
Therefore, how to develop one kind has good hydrophobicity performance, while having both fire-retardant and arc resistance antifouling work
Coating has important value for its application.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of anti-pollution flashover coating and preparation method thereof and answer
With again in a manner of through a kind of new building micro-nano structure, promotion coating surface hydrophobicity while promotes its flame retardant property.
In order to achieve that object of the invention, the invention adopts the following technical scheme:
In a first aspect, the anti-pollution flashover coating includes as follows by weight the present invention provides a kind of anti-pollution flashover coating
Component:
Anti-pollution flashover coating provided by the invention has the compound flame retardant of micron order and nano-scale dimension by introducing, mentions
High fire-retardance agent dosage, improves flame retardant property, meanwhile, reasonably combined, the formation of compound flame retardant and white carbon black, nanometer calcium carbonate
Micro-nano structure is able to ascend the hydrophobic performance of coating, and water contact angle can reach 120 ° or more, to realize flame retardant property and dredge
It is promoted while aqueous energy, finally greatly promotes the anti-fouling flashover performance of coating, extend the service life of coating.
The parts by weight of organosilicon polymer of the present invention are 25~40 parts, such as can be 25 parts, 26 parts, 28 parts, 30
Part, 32 parts, 33 parts, 35 parts, 38 parts or 40 parts etc..
Preferably, the organosilicon polymer includes hydroxy-terminated polysiloxane, dimethoxy terminated polysiloxane or front three
In oxygroup terminated polysiloxane any one or at least two combination, wherein it is typical but non-limiting combination include: end
Hydroxyl polysiloxane and dimethoxy terminated polysiloxane；Dimethoxy terminated polysiloxane and trimethoxy block poly- silicon oxygen
Alkane；Hydroxy-terminated polysiloxane, dimethoxy terminated polysiloxane and trimethoxy terminated polysiloxane.
Preferably, the viscosity of the organosilicon polymer is 5000~80000mPas, such as can be 5000mPa
S, 10000mPas, 20000mPas, 40000mPas, 50000mPas, 60000mPas, 70000mPas or
80000mPas etc..
The parts by weight of crosslinking agent of the present invention are 4~5 parts, such as can be 4 parts, 4.1 parts, 4.2 parts, 4.3 parts, 4.4
Part, 4.5 parts, 4.6 parts, 4.7 parts, 4.8 parts, 4.9 parts or 5 parts etc..
Preferably, the crosslinking agent includes methyltrimethoxysilane, vinyltrimethoxysilane, three diacetylmonoxime of methyl
In base silane or vinyl butanone oximino silane any one or at least two combination, wherein typical but non-limiting group
Conjunction includes: methyltrimethoxysilane and vinyltrimethoxysilane；Methyl tributanoximo silane and vinyl diacetylmonoxime
Base silane.
The parts by weight of catalyst of the present invention are 0.2~0.5 part, such as can be 0.2 part, 0.3 part, 0.4 part or 0.5
Part etc..
Preferably, the catalyst includes organic titanic compound and/or organo-tin compound.
Preferably, the organic titanic compound includes butyl titanate, tetraisopropyl titanate, the bis- (beta-diketons of dialkoxy titanium
Ester) complex, in metatitanic acid binary alcohol esters beta-diketone complex any one or at least two combination.
Preferably, the organo-tin compound includes dibutyl tin dilaurate and/or stannous octoate.
The parts by weight of white carbon black of the present invention are 4~7 parts, such as can be 4 parts, 5 parts, 6 parts or 7 parts etc..
Preferably, the white carbon black is hydrophabic silica.
Preferably, the specific surface area of the hydrophabic silica is 200~350m2/ g, such as can be 200m2/g、
230m2/g、250m2/g、280m2/g、300m2/g、330m2/ g or 350m2/ g etc..
In the present invention, white carbon black can assign coating good mechanical property, and it is with nanoscale scale.
The parts by weight of nanometer calcium carbonate of the present invention are 5~8 parts, such as can be 5 parts, 6 parts, 7 parts or 8 parts etc..
Preferably, the nanometer calcium carbonate is surface through the modified hydrophobic calcium carbonate of organic aliphatic acid.
Surface of the present invention is referred to through the modified hydrophobic calcium carbonate of organic aliphatic acid: conventional calcium carbonate is passed through
Cross the product that organic aliphatic acid modification obtains.
Preferably, the partial size of the nanometer calcium carbonate be 20~500nm, such as can be 20nm, 50nm, 100nm,
150nm200nm, 250nm, 300nm, 350nm, 400nm, 450nm or 500nm etc..
The parts by weight of compound flame retardant of the present invention be 60~90 parts, such as can be 60 parts, 65 parts, 70 parts, 75 parts,
80 parts, 85 parts, 90 parts etc..
Preferably, the compound flame retardant be nanoscale inorganic fire retardants and micron-sized inorganic fire retardants compounding and
At.
In the square that side length is L, after the ball with diameter for L is filled, the at most fillable spatial volume of the ball is
And in the square that side length is L, after the ball with diameter for L/n is filled, the at most fillable quantity of sphere is n3
A, at most fillable spatial volume is
By the result of Formulas I and Formula II it is found that V1=V2, which means that in identical spatial volume V0Under, with single particle size
The maximum space that can fill of sphere it is identical；Further, if going to the space of filling square using lesser sphere,
Higher filling proportion can be obtained.
And there are a variety of fillers in actual organosilicon anti-pollution flashover coating, in addition to white carbon black, and non-filling with it is organic
Silicon molecular backbone chemical structure is identical, thus there is certain interface between filler and silicone molecules always and repel, if filled out
Expect surface there are hydroxyl, interface is repelled will be bigger, and this to facilitate the mutually aggregation between filler particles close.Cause multiple
The small filler of sphere diameter will be distributed in the big filler surface of sphere diameter and form big-how small secondary structure, and control at big sphere
In micron order, small sphere is in nanoscale, finally can form micro-nano structure in coating surface, the formation of micro-nano structure facilitates
Promote hydrophobic performance.
Preferably, the inorganic fire retardants is aluminium hydroxide and/or magnesium hydroxide.
Preferably, the partial size of the nanoscale inorganic fire retardants be 10~1000nm, such as can be 10nm, 50nm,
80nm, 100nm, 150nm, 200nm, 250nm, 300nm, 400nm, 500nm, 600nm, 700nm, 800nm, 900nm or
1000nm etc., further preferably 20~500nm.
Preferably, the partial size of the micron-sized inorganic fire retardants is 1~16 μm, such as can be 1 μm, 2 μm, 3 μm, 4 μ
M, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm or 16 μm etc., further preferably 1~10
μm。
Preferably, the mass ratio of the nanoscale inorganic fire retardants and micron-sized inorganic fire retardants is (0.1~5):
1, such as can be 0.1:1,0.5:1,0.8:1,1:1,1.5:1,2:1,2.5:1,3:1,3.5:1,4:1,4.5:1 or 5:1 etc.,
Further preferably (0.5~3): 1.
Anti-pollution flashover coating of the present invention, white carbon black, nanometer calcium carbonate and compound flame retardant in nano-scale dimension
In nanoscale inorganic fire retardants, be the micron-sized inorganic fire retardants in compound flame retardant in micron order scale, lead to
The reasonably combined of proportion is crossed, micro-nano structure is constructed, and if the content of three kinds of components matches not in the framework of the present definition
When interior, contact angle is unable to reach 120 °, and hydrophobicity reduces；Nano grade inorganic fire retardant and micro inorganic in compound flame retardant
When fire retardant mixes, dosage is larger, can not only promote hydrophobicity, but also can promote anti-flammability and the resistance to leakage property of resistance to electric arc, real
Border service life greatly increased, up to 20 years or more.
Preferably, the anti-pollution flashover coating further includes 1~1.5 part of silane coupling agent, such as can be 1 part, 1.1 parts, 1.2
Part, 1.3 parts, 1.4 parts or 1.5 parts etc..
Preferably, the silane coupling agent includes Silane coupling agent KH550, silane coupling agent KH560 or silane coupling agent
In KH570 any one or at least two combination.
In the present invention, a certain amount of silane coupling agent is added, coating and the good Nian Jie effect of insulator surface can be assigned
Fruit.
Preferably, the anti-pollution flashover coating further includes 50~80 parts of solvent, such as can be 50 parts, 55 parts, 60 parts, 65
Part, 70 parts, 75 parts or 80 parts etc..
Preferably, the solvent include in aromatic hydrocarbon solvent, polyether solvent or alkane solvents any one or extremely
Few two kinds of combination.
Aromatic hydrocarbon solvent of the present invention can be toluene, dimethylbenzene etc., and polyether solvent can be petroleum ether etc., alkane
Hydrocarbon solvent can be methylene chloride etc., can also be the common solvents such as acetone, butanone.
Preferably, the anti-pollution flashover coating further includes 5~15 parts of wetting agent, for example, can be 5 parts, 7 parts, 8 parts, 10 parts,
12 parts, 13 parts, 14 parts or 15 parts etc..
Preferably, the wetting agent includes small-molecular-weight methyl-silicone oil and/or small-molecular-weight phenyl silicone oil.
Small-molecular-weight of the present invention can be characterized indirectly with viscosity.Viscosity is big, and molecular weight is big；Viscosity is small, molecule
It measures small.
Preferably, the viscosity of the wetting agent at 25 DEG C be 50~500mPas, such as can be 50mPas,
100mPa·s、150mPa·s、200mPa·s、250mPa·s、300mPa·s、350mPa·s、400mPa·s、
450mPas or 500mPas etc..
Preferably, the anti-pollution flashover coating includes following component by weight:
Preferably, the anti-pollution flashover coating is dealcoholized type anti-pollution flashover coating, by weight includes following component:
Preferably, the anti-pollution flashover coating is dealcoholized type anti-pollution flashover coating, by weight includes following component:
In the present invention, single-component dealcoholization-type anti-pollution flashover coating does not use organotin catalysts generally.If urged using this
Agent can gradually generate crosslinking curing even if then the system is under conditions of being fully sealed, and influence to actually use.
Second aspect, the present invention provides a kind of preparation methods of anti-pollution flashover coating as described in relation to the first aspect, will be organic
Silicon polymer, white carbon black, nanometer calcium carbonate and compound flame retardant take off after mixing it is low obtain base rubber, then be added crosslinking agent,
Catalyst and optionally silane coupling agent, optionally wetting agent, optionally solvent are mixed to get the anti-pollution flashover coating.
Preferably, the mixed temperature be 120~150 DEG C, such as can be 120 DEG C, 125 DEG C, 130 DEG C, 135 DEG C,
140 DEG C, 145 DEG C or 150 DEG C etc..
Preferably, the mixing carries out under vacuum conditions.
Preferably, described be blended under stirring carries out.
Preferably, base rubber is uniformly mixed are as follows: at 120~150 DEG C, after being placed at room temperature for 1 day, crosslinking agent, catalysis is added
Agent, coupling agent, wetting agent and stirring solvent are uniform, and control temperature need to be between 30~60 DEG C when stirring.
In the present invention, after each component being mixed high-speed stirred, process is filling, discharging finally obtains anti-pollution flashover coating.
It is of the present invention to take off low meaning are as follows: small molecule oligomer is removed under high-temperature vacuum.
The third aspect, the present invention provides a kind of anti-pollution flashover coating as described in relation to the first aspect answering in the power system
With.
Application in power domain of the present invention, the preferably paint application on glass or ceramic insulator surface.
Compared with the existing technology, the invention has the following advantages:
Anti-pollution flashover coating provided by the invention has the compound flame retardant of micron order and nano-scale dimension by introducing, mentions
High fire-retardance agent dosage, improves flame retardant property, meanwhile, reasonably combined, the formation of compound flame retardant and white carbon black, nanometer calcium carbonate
Micro-nano structure is able to ascend the hydrophobic performance of coating, and water contact angle can reach 120 ° or more, to realize flame retardant property and dredge
It is promoted while aqueous energy, finally greatly promotes the anti-fouling flashover performance of coating, extend the service life of coating.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation.Those skilled in the art should be bright
, the described embodiments are merely helpful in understanding the present invention, should not be regarded as a specific limitation of the invention.
Embodiment 1
Anti-pollution flashover coating provided in this embodiment includes following components
Wherein, the viscosity of hydroxy-terminated polysiloxane is 50000mPas, and the specific surface area of hydrophabic silica is 300m2/
The partial size of g, nanometer calcium carbonate are 60nm, and compound flame retardant is the nano-grade aluminum hydroxide that partial size is 80nm and partial size is 6 μm
The mass ratio of the combination of micron order aluminium hydroxide, nano level flame retardant and micron order fire retardant is 2:1.
Preparation method: hydroxy-terminated polysiloxane, hydrophabic silica, nanometer calcium carbonate and compound flame retardant are mixed anti-
Answer, be warming up to 130 DEG C and vacuumize 2h, take off it is low obtain base rubber, after being placed at room temperature for 1 day, be added methyltrimethoxysilane, metatitanic acid four
Isopropyl ester, Silane coupling agent KH550, small molecule methyl-silicone oil and solvent mixing, high-speed stirred obtain anti-pollution flashover coating.
Embodiment 2
Anti-pollution flashover coating provided in this embodiment includes following components
Wherein, hydroxy-terminated polysiloxane, dimethoxy terminated polysiloxane, the viscosity of trimethoxy terminated polysiloxane are equal
For 10000mPas, the specific surface area of hydrophabic silica is 350m2/ g, the partial size of nanometer calcium carbonate are 20nm, compositional flame-retardant
Agent be partial size be 200nm nano-grade aluminum hydroxide, the nanometric magnesium hydroxide that partial size is 150nm, the micron that partial size is 16 μm
The combination of grade magnesium hydroxide, the micron order aluminium hydroxide that partial size is 3 μm, nano level flame retardant gross mass and micron order fire retardant
The ratio of gross mass is 0.5:1.
Preparation method: by hydroxy-terminated polysiloxane, dimethoxy terminated polysiloxane, trimethoxy terminated polysiloxane,
Hydrophabic silica, nanometer calcium carbonate and compound flame retardant hybrid reaction are warming up to 120 DEG C and vacuumize 2h, take off it is low obtain base rubber,
After being placed at room temperature for 1 day, methyltrimethoxysilane, vinyltrimethoxysilane, butyl titanate, silane coupling agent is added
KH550, silane coupling agent KH570, small molecule phenyl silicone oil and solvent mixing, high-speed stirred obtain anti-pollution flashover coating.
Embodiment 3
Anti-pollution flashover coating provided in this embodiment includes following components
Wherein, hydroxy-terminated polysiloxane, dimethoxy terminated polysiloxane, the viscosity of trimethoxy terminated polysiloxane are equal
For 80000mPas, the specific surface area of hydrophabic silica is 200m2/ g, the partial size of nanometer calcium carbonate are 40nm, compositional flame-retardant
Agent be partial size be 1000nm nano-grade aluminum hydroxide, the nano-grade aluminum hydroxide that partial size is 10nm, the micron order that partial size is 1 μm
The combination of magnesium hydroxide, the micron order aluminium hydroxide that partial size is 5 μm, nano level flame retardant gross mass are total with micron order fire retardant
The ratio of quality is 3:1.
Preparation method: hydroxy-terminated polysiloxane, hydrophabic silica, nanometer calcium carbonate and compound flame retardant are mixed anti-
Answer, be warming up to 150 DEG C and vacuumize 2h, take off it is low obtain base rubber, after being placed at room temperature for 1 day, be added methyl tributanoximo silane, ethylene
Base butanone oximino silane, dibutyl tin dilaurate, silane coupling agent KH560, small molecule methyl-silicone oil and solvent mixing, high speed
Stirring, obtains anti-pollution flashover coating.
Embodiment 4
Anti-pollution flashover coating provided in this embodiment includes following components
Wherein, the viscosity of hydroxy-terminated polysiloxane is 5000mPas, and the specific surface area of hydrophabic silica is 240m2/
G, the partial size of nanometer calcium carbonate are 55nm, compound flame retardant be partial size be 100nm nano-grade aluminum hydroxide, partial size be 20nm's
The combination of nanometric magnesium hydroxide, the micron order aluminium hydroxide that partial size is 6 μm, nano level flame retardant gross mass and micron order are fire-retardant
The ratio of the gross mass of agent is 5:1.
Preparation method: hydroxy-terminated polysiloxane, hydrophabic silica, nanometer calcium carbonate and compound flame retardant are mixed anti-
Answer, be warming up to 150 DEG C and vacuumize 2h, take off it is low obtain base rubber, after being placed at room temperature for 1 day, be added vinyl butanone oximino silane, octanoic acid
Stannous, Silane coupling agent KH550, silane coupling agent KH570, small molecule phenyl silicone oil and solvent mixing, high-speed stirred are prevented
Pollution flashover coating.
Embodiment 5
Anti-pollution flashover coating provided in this embodiment includes following components
Wherein, the viscosity of hydroxy-terminated polysiloxane is 45000mPas, and the specific surface area of hydrophabic silica is 315m2/
G, the partial size of nanometer calcium carbonate are 35nm, compound flame retardant be partial size be 10nm nano-grade aluminum hydroxide, partial size be 20nm's
The combination of nanometric magnesium hydroxide, the micron order aluminium hydroxide that partial size is 5 μm, nano level flame retardant gross mass and micron order are fire-retardant
The ratio of the gross mass of agent is 0.1:1.
Preparation method: hydroxy-terminated polysiloxane, hydrophabic silica, nanometer calcium carbonate and compound flame retardant are mixed anti-
Answer, be warming up to 150 DEG C and vacuumize 2h, take off it is low obtain base rubber, after being placed at room temperature for 1 day, be added methyl tributanoximo silane, octanoic acid
Stannous, Silane coupling agent KH550, small molecule methyl-silicone oil and solvent mixing, high-speed stirred obtain anti-pollution flashover coating.
Embodiment 6
The present embodiment and the difference of embodiment 1 are only that fire retardant is using only the partial size of one-component in the present embodiment
The nano-grade aluminum hydroxide of 80nm, remaining is same as Example 1 to be prepared anti-pollution flashover coating.
Embodiment 7
The present embodiment and the difference of embodiment 1 are only that it is 6 that the partial size of one-component, which is used only, in fire retardant in the present embodiment
μm micron order aluminium hydroxide, remaining is same as Example 1 to be prepared anti-pollution flashover coating.
Comparative example 1
The difference of this comparative example and embodiment 1 is only that, does not include nanometer calcium carbonate in this comparative example, remaining with implementation
Example 1 is identical to be prepared anti-pollution flashover coating.
Comparative example 2
The difference of this comparative example and embodiment 1 is only that, does not include hydrophabic silica in this comparative example, remaining with reality
Apply that example 1 is identical to be prepared anti-pollution flashover coating.
Comparative example 3
The difference of this comparative example and embodiment 1 is only that, does not include compound flame retardant in this comparative example, remaining with implementation
Example 1 is identical to be prepared anti-pollution flashover coating.
The anti-pollution flashover coating of embodiment 1-7 and comparative example 1-3 preparation is carried out hydrophobicity test, and (experimental method and standard are joined
Examine 864 appendix A of DL/T), flammable test (testing standard GB/T 10707), obtained result is as shown in table 1 below:
Table 1
As can be seen from the data in table 1, compound flame retardant of the invention plays decisive role for the hydrophobic performance of coating,
In embodiment 6-7, be used alone nanoscale particle or micron-sized particle, the hydrophobicity decline of coating, only 113 ° and
115 °, and if not including compound flame retardant, hydrophobic performance sharply declines, and only 109 °.
And by comparative example 1-2 it is found that hydrophobic performance is declined when having lacked nanometer calcium carbonate or hydrophabic silica.
It illustrates, nanometer calcium carbonate, hydrophabic silica and compound flame retardant are used in mixed way, and can promote coating hydrophobic performance
It is promoted.
The Applicant declares that the present invention is explained by the above embodiments anti-pollution flashover coating of the invention and preparation method thereof and
Using, but the invention is not limited to above-mentioned processing steps, that is, do not mean that the present invention must rely on above-mentioned processing step ability
Implement.It should be clear to those skilled in the art, any improvement in the present invention, to raw material selected by the present invention etc.
Effect replacement and addition, the selection of concrete mode of auxiliary element etc., all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. a kind of anti-pollution flashover coating, which is characterized in that the anti-pollution flashover coating includes following component by weight:
2. anti-pollution flashover coating according to claim 1, which is characterized in that the organosilicon polymer includes the poly- silicon of terminal hydroxy group
In oxygen alkane, dimethoxy terminated polysiloxane or trimethoxy terminated polysiloxane any one or at least two combination；
Preferably, the viscosity of the organosilicon polymer is 5000~80000mPas.
3. anti-pollution flashover coating according to claim 1 or 2, which is characterized in that the crosslinking agent includes methyl trimethoxy oxygroup
In silane, vinyltrimethoxysilane, methyl tributanoximo silane or vinyl butanone oximino silane any one or
At least two combination；
Preferably, the catalyst includes organic titanic compound and/or organo-tin compound；
Preferably, the organic titanic compound includes that butyl titanate, tetraisopropyl titanate, dialkoxy titanium bis- (beta-diketo-esters) are matched
Close object, in metatitanic acid binary alcohol esters beta-diketone complex any one or at least two combination；
Preferably, the organo-tin compound includes dibutyl tin dilaurate and/or stannous octoate.
4. anti-pollution flashover coating according to any one of claim 1-3, which is characterized in that the white carbon black is that hydrophobicity is white
Carbon black；
Preferably, the specific surface area of the hydrophabic silica is 200~350m2/g；
Preferably, the nanometer calcium carbonate is surface through the modified hydrophobic calcium carbonate of organic aliphatic acid；
Preferably, the partial size of the nanometer calcium carbonate is 20~500nm.
5. anti-pollution flashover coating described in any one of -4 according to claim 1, which is characterized in that the compound flame retardant is nanometer
The inorganic fire retardants and micron-sized inorganic fire retardants of grade compound；
Preferably, the inorganic fire retardants is aluminium hydroxide and/or magnesium hydroxide；
Preferably, the partial size of the nanoscale inorganic fire retardants is 10~1000nm；Further preferably 20~500nm；
Preferably, the partial size of the micron-sized inorganic fire retardants is 1~16 μm；Further preferably 1~10 μm；
Preferably, the mass ratio of the nanoscale inorganic fire retardants and micron-sized inorganic fire retardants is (0.1~5): 1；Into
One step is preferably (0.5~3): 1.
6. anti-pollution flashover coating according to any one of claims 1-5, which is characterized in that the anti-pollution flashover coating further includes
1~1.5 part of silane coupling agent；
Preferably, the silane coupling agent includes Silane coupling agent KH550, silane coupling agent KH560 or silane coupling agent KH570
In any one or at least two combination；
Preferably, the anti-pollution flashover coating further includes 50~80 parts of solvent；
Preferably, the solvent includes any one in aromatic hydrocarbon solvent, polyether solvent or alkane solvents or at least two
The combination of kind；
Preferably, the anti-pollution flashover coating further includes 5~15 parts of wetting agent；
Preferably, the wetting agent includes small-molecular-weight methyl-silicone oil and/or small-molecular-weight phenyl silicone oil；
Preferably, the viscosity of the wetting agent is 50~500mPas at 25 DEG C.
7. anti-pollution flashover coating according to claim 1 to 6, which is characterized in that the anti-pollution flashover coating is by weight
Part meter includes following component:
Preferably, the anti-pollution flashover coating is dealcoholized type anti-pollution flashover coating, by weight includes following component:
Preferably, the anti-pollution flashover coating is dealcoholized type anti-pollution flashover coating, by weight includes following component:
8. the preparation method of anti-pollution flashover coating described in any one of -7 according to claim 1, which is characterized in that gather organosilicon
Close object, white carbon black, nanometer calcium carbonate and compound flame retardant take off after mixing it is low obtain base rubber, crosslinking agent, catalysis is then added
Agent and optionally silane coupling agent, optionally wetting agent, optionally solvent are mixed to get the anti-pollution flashover coating.
9. preparation method according to claim 8, which is characterized in that the mixed temperature is 120~150 DEG C；
Preferably, the mixing carries out under vacuum conditions；
Preferably, described be blended under stirring carries out；
Preferably, base rubber is uniformly mixed are as follows: at 120~150 DEG C, after being placed at room temperature for 1 day, crosslinking agent, catalyst, idol is added
It is uniform to join agent, wetting agent and stirring solvent, control temperature need to be between 30~60 DEG C when stirring.
10. the application of anti-pollution flashover coating described in any one of -7 in the power system according to claim 1.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111073505A (en) * | 2019-12-30 | 2020-04-28 | 昆山裕凌导热科技有限公司 | Nanometer anti-freezing coating material and preparation method thereof |
| 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 |
| CN114933853A (en) * | 2022-04-24 | 2022-08-23 | 北京国电富通科技发展有限责任公司 | Super-hydrophobic anti-pollution flashover coating based on micro-nano structure and preparation method thereof |
| CN115340791A (en) * | 2022-08-16 | 2022-11-15 | 国网山东省电力公司电力科学研究院 | Bottom surface integrated anti-pollution flashover coating and preparation method thereof |
| CN116970340A (en) * | 2023-04-28 | 2023-10-31 | 东莞市金耐新材料有限公司 | Hydrophobic oleophobic anti-doodling nano-coating and preparation method thereof |
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| CN103131240A (en) * | 2011-11-28 | 2013-06-05 | 北京国电富通科技发展有限责任公司 | Self-cleaning anti-pollution flashover coatings and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111073505A (en) * | 2019-12-30 | 2020-04-28 | 昆山裕凌导热科技有限公司 | Nanometer anti-freezing coating material and preparation method thereof |
| 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 |
| CN114933853A (en) * | 2022-04-24 | 2022-08-23 | 北京国电富通科技发展有限责任公司 | Super-hydrophobic anti-pollution flashover coating based on micro-nano structure and preparation method thereof |
| CN115340791A (en) * | 2022-08-16 | 2022-11-15 | 国网山东省电力公司电力科学研究院 | Bottom surface integrated anti-pollution flashover coating and preparation method thereof |
| CN116970340A (en) * | 2023-04-28 | 2023-10-31 | 东莞市金耐新材料有限公司 | Hydrophobic oleophobic anti-doodling nano-coating and preparation method thereof |
| CN118165643A (en) * | 2024-03-27 | 2024-06-11 | 山东元开电气有限公司 | A kind of live spraying material for equipment on high-voltage line pole and preparation method thereof |
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