CN104694004A - Solvent-free anti-pollution flashover organic silicon coating and preparation method thereof - Google Patents
Solvent-free anti-pollution flashover organic silicon coating and preparation method thereof Download PDFInfo
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- CN104694004A CN104694004A CN201510085475.XA CN201510085475A CN104694004A CN 104694004 A CN104694004 A CN 104694004A CN 201510085475 A CN201510085475 A CN 201510085475A CN 104694004 A CN104694004 A CN 104694004A
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- 0 CCCOS([*+])(O[Si](C)O[Si](C)(C*O[C+]C1O*1=C)OIN)O[Si](*)(OC)OC Chemical compound CCCOS([*+])(O[Si](C)O[Si](C)(C*O[C+]C1O*1=C)OIN)O[Si](*)(OC)OC 0.000 description 1
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Abstract
The invention discloses a solvent-free anti-pollution flashover organic silicon coating which comprises the following components in parts by weight: 100 parts of polysiloxane containing at least two silicon vinyl groups, 1-20 parts of polysiloxane containing at least two silicon oxygen groups, 5-25 parts of white carbon black, 10-40 parts of a flame-retardant filler, 10-35 parts of a vinyl-containing silicon resin, 2-8 parts of a water repellent, 0.1-10 parts of platinum catalyst and 1-5 parts of a tackifier, wherein the specific surface area of silica in the white carbon black is 150-250m<2>/g, and the average particle size does not exceed 20 microns. The invention also discloses a method for preparing the solvent-free anti-pollution flashover organic silicon coating. The method comprises the following steps: (a), preparing a basic sizing material and (b) mixing the glue; or (a) preparing a basic sizing material; (b), preparing a component A; (c) preparing a component B; and (d) mixing the glue. After being subjected to room temperature or medium temperature curing, the solvent-free anti-pollution flashover organic silicon coating is dried, fine, smooth and bright in surface and excellent in hydrophobic property and has excellent self-cleaning performance, and the surface rainwater and floating dust can be automatically flushed away. In addition, the solvent-free anti-pollution flashover organic silicon coating has excellent aging performance, mechanical properties, high/low-temperature resistance, arc resistance, electric insulation performance and the like.
Description
Technical field
The invention belongs to organosilicon coating technical field, relate to a kind of solvent-free anti-pollution flashover organosilicon coating and preparation method thereof, belong to power system power transmission and transforming equipment technical field of coatings.
Background technology
At present, the isolator material used at power system power transmission and transforming equipment is glass or pottery substantially, and the contaminant particle in air is very easily at pottery and glass surface formation of deposits pollution layer.Meanwhile, moist air is as the salts substances of the meeting such as fog, sleet glass or ceramic insulation sub-surface form moisture film while in dissolve deposits, and this will cause uncontrolled local electric leakage and electric discharge, cause transmission loss.When the increase of leakage current amplitude, local arc increase, when arc length reaches threshold value, namely insulator surface produces flashover, and this flashover can cause interruption of uninterruptedly transmitting electricity, and also brings certain potential safety hazard while causing very big financial loss.In order to head it off, method conventional is at present the surface-coated one deck organosilicon RTV antifouling flush paint at converting equipment.This coating can give converting equipment surface hydrophobic nature greatly, even if the solid particulate matter that surface is deposited covered, it still can keep hydrophobicity, thus reduces surface leakage, the raising flash-over voltage because pollution flashover causes.
From RTV coating in 1986 since power transmission and transforming equipment field test, its security is enjoyed great popularity, but also expose some problems simultaneously, although these performances of complicacy as the cementability of first-generation RTV coating and base material, arc ablation resistance, construction are improved in the RTV coating in later stage, but the air environmental pollution brought along with industrialization in recent years aggravates, also more and more stricter to the application indexes of RTV coating.The RTV coating of current use is substantially all based on condensed type silicon rubber; except id reaction can generate a certain amount of small molecule by-product; in order to ensure even, the gloss of coatingsurface; usual meeting adds a certain amount of organic solvent as solvent oil, sherwood oil, normal hexane, hexanaphthene, toluene or dimethylbenzene etc. in RTV coating; these small molecule by-products or solvent are not only with certain toxicity; simultaneously inflammable and explosive, great impact is all caused on construction environment and physical environment.In order to alleviate the harm that RTV constructs to physical environment and human body, the RTV coating developing the solid low-volatile of more clean height or no-solvent type is the trend of current development.Another shortcoming of traditional condensed type RTV coating and curing speed slowly, for reaching required performance, then often need several days time, and this have impact on the efficiency of RTV construction greatly, and add-on type RTV coating can solve the slow problem of curing speed.But due to substantially not containing polar functional group, himself there is the shortcoming of poor adhesive force, in order to improve its cementability in addition-type silicon rubber, often need to add tackifier, but adding of tackifier often causes thixotropy to increase, viscosity becomes large, can not realize homogeneous, bright shallow layer.
Summary of the invention
The object of the present invention first invention is slow for current condensed type RTV paint solidification speed, contains the problems such as a large amount of organic solvents, provide a kind of solvent-free anti-pollution flashover organosilicon RTV coating while self-condensation produces a certain amount of small molecule by-product in formula.Use wet method white carbon black to be combined with silicone resin with while improving RTV paint machine mechanical property simultaneously, avoid the system viscosity caused because tackifier add to increase rapidly.
The present invention's second goal of the invention is the preparation method providing this solvent-free anti-pollution flashover organosilicon RTV coating.
For reaching first goal of the invention, the invention provides a kind of solvent-free anti-pollution flashover organosilicon coating, this coating mainly comprises following parts by weight of component:
Polysiloxane 100 parts containing at least two silico ethylene bases;
Polysiloxane 1-20 part containing at least two silicon hydrogen bases;
White carbon black 5-25 part;
Fire-retardant filler 10-40 part;
Containing Vinyl MQ silicon resin 10-35 part;
Hydrophober 2-8 part;
Catalyst for addition reaction of hydrogen and silicon 0.1-10 part;
Tackifier 1-5 part;
Stopper 0.0001-10 part.
Further, the described polysiloxane containing at least two silico ethylene bases, in the middle of the two ends that the vinyl that itself and Si are directly connected can be positioned at molecular chain or molecular chain, the viscosity at its 25 DEG C is in the scope of 500mPa.s ~ 5000mPa.s, and its molecular structure can as shown in (I):
R1aSiO(4-a)/2(I)
Wherein, 1.95<a<2.05, R1 are methyl, phenyl, trifluoro propyl or vinyl etc., and the molar ratio that its medium vinyl accounts for all R1 groups is 0.02-5%.
Further, the described polysiloxane containing at least two silicon hydrogen bases, in the middle of the two ends that the hydrogen atom that itself and Si are directly connected can be positioned at molecular chain or molecular chain, the viscosity at its 25 DEG C is in the scope of 1mPa.s ~ 500mPa.s, and its molecular structure can as shown in (II):
R2bHcSiO(4-b-c)/2(II)
Wherein, 1≤b≤2,0.01≤c≤1.0,1≤b+c≤2.5, R2 is one or more in methyl, ethyl, propyl group, phenyl or trifluoro propyl.
Further, described white carbon black is wet method white carbon black, and its specific surface area is 150-250m2/g, and its median size is 1-10 μm.
Further, described fire-retardant filler is one or more in aluminium hydroxide, magnesium hydroxide, decabromodiphenyl oxide;
Further, the described silicone resin containing vinyl is MQ resin, MDQ resin or MTQ resin, wherein MQ resin for best, MQ resin medium vinyl content be 1.0-4.0%, M/Q ratio is 0.6-0.9.
Further, the lower molecular weight polydimethylsiloxane of described hydrophober to be viscosity be 1mPa.s-1000mPa.s, Diphenylsilanediol, viscosity are any one or a few in the fluorine containing silicone oil of 1mPa.s-1000mPa.s, white oil;
Further, described catalyst for addition reaction of hydrogen and silicon is the catalyzer containing one or more metallic elements in platinum, palladium, rhodium,
Further, wherein catalyst made from platonic is best.
Further, containing one or more in alkoxyl group, epoxy group(ing), ester group in described tackifier, containing any one in silicon hydrogen base or silico ethylene base.
Further, described stopper is alkynol compound, enyne compounds or t etram-ethyltetravinylcyclotetrasiloxane, described alkynol compound is one or more in 2-methyl-3-butyne-2-alcohol, 3,5-dimethyl-1-hexin-3-alcohol, 2-phenyl-3-butyne-2-alcohol, 1-ethynylcyclohexanol.
Further, the preferred alkynol compound of described stopper.
Further, in described component, be 1.0 ~ 5.0 containing silicon hydrogen base contained in the polysiloxane of at least two silicon hydrogen bases and tackifier and the polysiloxane containing at least two silico ethylene bases, containing the mol ratio of silico ethylene base contained in Vinyl MQ silicon resin and tackifier.
Further, the viscosity of coating at 25 DEG C of its formula gained is 1000mPa.s ~ 10000mPa.s.
For reaching second goal of the invention, the invention provides a kind of making method of solvent-free anti-pollution flashover organosilicon coating according to claim 1, comprising the following steps:
A. the preparation of sizing: by the polysiloxane 100 parts containing at least two silico ethylene bases; White carbon black 5-25 part; Fire-retardant filler 10-40 part; Containing Vinyl MQ silicon resin 10-35 part; Hydrophober 2-8 part is mediated evenly in kneader, then grinds on three-roller, and being transferred to evenly in drying kettle heats up stirs, and keep material temperature at 100-150 DEG C, vacuum tightness is not less than-0.085MPa, and airtight after vacuumizing dry 2-4h to make sizing stand-by;
B. glue is joined: be transferred to by dried sizing and join in glue still, when sizing material temperature is cooled to below 30 DEG C, first the polysiloxane 2-25 part containing at least two silicon hydrogen bases, stopper 1-5 part, tackifier 0.0001-10 part is added, to be mixed evenly after, finally add catalyst for addition reaction of hydrogen and silicon 0.1-10 part and stir 10-30min obtain described solvent-free anti-pollution flashover organosilicon coating after mixing; Last package encapsulation, stand-by in low-temperature storage.
Further, described low temperature is 0 ~ 5 DEG C.
For reaching second goal of the invention, present invention also offers the making method of solvent-free anti-pollution flashover organosilicon coating, comprising the following steps:
A. the preparation of sizing: by the polysiloxane 100 parts containing at least two silico ethylene bases; White carbon black 5-25 part; Fire-retardant filler 10-40 part; Containing Vinyl MQ silicon resin 10-35 part; Hydrophober 2-8 part is mediated evenly in kneader, then grinds on three-roller, and being transferred to evenly in drying kettle heats up stirs, and keep material temperature at 100-150 DEG C, vacuum tightness is not less than-0.085MPa, airtight after vacuumizing dry 2-4h, makes sizing stand-by;
The configuration of b.A component: be transferred to by dried sizing 100 parts and join in glue still, when sizing material temperature is cooled to below 30 DEG C, add catalyst for addition reaction of hydrogen and silicon 0.1-10 part, stopper 1-5 part mixes obtained component A;
The configuration of c.B component: dried sizing 100 parts is transferred to and joins in glue still, when sizing material temperature is cooled to below 30 DEG C, add the configuration that polysiloxane 2-25 parts of at least two silicon hydrogen bases and tackifier 0.0001-10 part mix obtained B component;
D. glue is joined: during use, by AB component according to 1; 1 mixes and obtains described solvent-free anti-pollution flashover organosilicon coating.
Further, described steps d. join glue obtain solvent-free anti-pollution flashover organosilicon coating at room temperature tool have≤operating time of 8 hours.
Solvent-free anti-pollution flashover organosilicon coating provided by the invention, has following beneficial effect with existing compared with solvent condensation type RTV:
Solvent-free anti-pollution flashover organosilicon coating of the present invention, dry through room temperature or intermediate temperature setting rear surface, fine and smooth, bright, hydrophobicity performance is excellent, and surface rain water and floating ash can wash out automatically, has excellent self-cleaning; In addition there are excellent aging resistance, mechanical mechanics property, resistant of high or low temperature, anti-electric-arc and electrical insulation properties etc.
Embodiment
Embodiment 1
Present embodiments provide a solvent-free anti-pollution flashover organosilicon coating, it comprises following component:
Viscosity is 1500mPa.s, and containing the polydimethylsiloxane 100 parts of end-vinyl, in the middle of the two ends that the vinyl that itself and Si are directly connected can be positioned at molecular chain or molecular chain, its molecular structure can as shown in (I); Viscosity is the polydimethylsiloxane 1.5 parts that 60mPa.s contains end silicon hydrogen base, and in the middle of the two ends that the hydrogen atom that itself and Si are directly connected can be positioned at molecular chain or molecular chain, its molecular structure can as shown in (II); Structure is Me
3siO (Me
2siO)
4(MeHSiO)
6siMe
3polysiloxane 8.5 parts; Wet method white carbon black 15 parts, its specific surface area is 190m
2/ g, median size is 10 μm; 10 parts, aluminium hydroxide, decabromodiphenyl oxide 10 parts; Contents of ethylene is the Vinyl MQ silicon resin 20 parts of 2.5%, M/Q=0.9; Viscosity is the polydimethylsiloxane 6 parts of 100mPa.s; Platinic chloride and 0.3 part, t etram-ethyltetravinylcyclotetrasiloxane complex compound (Pt content is 5000ppm); The tackifier of structure as shown in (III) 1.5 parts; 3,5-dimethyl-1-hexin-3-alcohol 0.03 part.
R
1 aSiO
(4-a)/2(I)
Wherein, 1.95<a<2.05, R
1for methyl, phenyl, trifluoro propyl or vinyl etc., its medium vinyl accounts for all R
1the molar ratio of group is 0.02-5%.
R
2 bH
cSiO
(4-b-c)/2(II)
Wherein, 1≤b≤2,0.01≤c≤1.0,1≤b+c≤2.5, R
2for one or more in methyl, ethyl, propyl group, phenyl or trifluoro propyl.
The making method of the solvent-free anti-pollution flashover organosilicon coating described in this embodiment, comprises the following steps:
A. the preparation of sizing: by the polysiloxane 100 parts containing at least two silico ethylene bases; White carbon black 5-25 part; Fire-retardant filler 10-40 part; Containing Vinyl MQ silicon resin 10-35 part; Hydrophober 2-8 part is mediated evenly in kneader, then grinds on three-roller, and being transferred to evenly in drying kettle heats up stirs, and keep material temperature at 100-150 DEG C, vacuum tightness is not less than-0.085MPa, and airtight after vacuumizing dry 2-4h to make sizing stand-by.
B. glue is joined: be transferred to by dried sizing and join in glue still, when sizing material temperature is cooled to below 30 DEG C, first the polysiloxane 2-25 part containing at least two silicon hydrogen bases, stopper 1-5 part, tackifier 0.0001-10 part is added, to be mixed evenly after, finally add catalyst for addition reaction of hydrogen and silicon 0.1-10 part and stir 10-30min to mixing rear package encapsulation---become the solvent-free anti-pollution flashover organosilicon coating of single-component packaging, stand-by in low temperature 0 ~ 5 DEG C storage.The solvent-free anti-pollution flashover organosilicon coating of this single-component can store 3 months low temperature 0 ~ 5 DEG C.
Described solvent-free anti-pollution flashover organosilicon coating also can be configured to component A and B component respectively as required based on the sizing that step a is obtained, is this solvent-free anti-pollution flashover organosilicon coating by component A and B component mixed configuration again during use.Concrete preparation method is as follows:
A. the preparation of sizing: by the polysiloxane 100 parts containing at least two silico ethylene bases; White carbon black 5-25 part; Fire-retardant filler 10-40 part; Containing Vinyl MQ silicon resin 10-35 part; Hydrophober 2-8 part is mediated evenly in kneader, then grinds on three-roller, and being transferred to evenly in drying kettle heats up stirs, and keep material temperature at 100-150 DEG C, vacuum tightness is not less than-0.085MPa, airtight after vacuumizing dry 2-4h, makes sizing stand-by;
The configuration of b.A component: be transferred to by dried sizing 100 parts and join in glue still, when sizing material temperature is cooled to below 30 DEG C, add catalyst for addition reaction of hydrogen and silicon 0.1-10 part, stopper 1-5 part mixes obtained component A;
The configuration of c.B component: dried sizing 100 parts is transferred to and joins in glue still, when sizing material temperature is cooled to below 30 DEG C, add the configuration that polysiloxane 2-25 parts of at least two silicon hydrogen bases and tackifier 0.0001-10 part mix obtained B component;
D. glue is joined: during use, by AB component according to 1; 1 mixes and obtains this solvent-free anti-pollution flashover organosilicon coating.
Pack separately and can store more than 12 months under component A and B component normal temperature.The solvent-free anti-pollution flashover organosilicon coating of component A and B component configuration, the operating time of Ju You≤8 hour under room temperature.
Embodiment 2
Present embodiments provide a solvent-free anti-pollution flashover organosilicon coating, it comprises following component:
Viscosity is 2000mPa.s, and containing the polydimethylsiloxane 100 parts of end-vinyl, in the middle of the two ends that the vinyl that itself and Si are directly connected can be positioned at molecular chain or molecular chain, its molecular structure can as shown in (I); Viscosity is the polydimethylsiloxane 1.0 parts that 80mPa.s contains end silicon hydrogen base, and in the middle of the two ends that the hydrogen atom that itself and Si are directly connected can be positioned at molecular chain or molecular chain, its molecular structure can as shown in (II); Structure is Me
3siO (Me
2siO)
4(MeHSiO)
6siMe
3polysiloxane 8.0 parts; Wet method white carbon black 15 parts, its specific surface area is 190m
2/ g, median size is 10 μm; 15 parts, aluminium hydroxide, decabromodiphenyl oxide 5 parts; Contents of ethylene is the Vinyl MQ silicon resin 20 parts of 2.0%, M/Q=0.9; Viscosity is the polydimethylsiloxane 5 parts of 50mPa.s; Platinic chloride and 0.3 part, t etram-ethyltetravinylcyclotetrasiloxane complex compound (Pt content is 5000ppm); The tackifier of structure as shown in (IV) 1.5 parts; 1-ethynylcyclohexanol 0.03 part;
The making method of the solvent-free anti-pollution flashover organosilicon coating described in this embodiment, with embodiment 1---become the solvent-free anti-pollution flashover organosilicon coating of single-component packaging, stand-by in low temperature 0 ~ 5 DEG C storage.The solvent-free anti-pollution flashover organosilicon coating of this single-component can store 3 months low temperature 0 ~ 5 DEG C.
Described solvent-free anti-pollution flashover organosilicon coating also can be configured to component A and B component respectively as required based on sizing, is this solvent-free anti-pollution flashover organosilicon coating by component A and B component mixed configuration again during use.Concrete preparation method is as follows:
A. the preparation of sizing: with embodiment 1;
The configuration of b.A component: dried sizing 100 parts is transferred to and joins in glue still, when sizing material temperature is cooled to below 30 DEG C, (by Platinic chloride and (7) 0.3 parts, t etram-ethyltetravinylcyclotetrasiloxane complex compound (Pt content is 5000ppm), stopper 1-ethynylcyclohexanol (9) 0.03 mixes obtained to add catalyzer.
The configuration of c.B component: dried sizing 100 parts is transferred to and joins in glue still, when sizing material temperature is cooled to below 30 DEG C, the polysiloxane (2) 1.0 parts and the tackifier (8) 1.5 parts that add at least two silicon hydrogen bases mix obtained.
D. glue is joined: during use, by AB component according to 1; 1 mixes and can obtain this solvent-free anti-pollution flashover organosilicon coating.
Can more than 12 months be stored under component A and B component normal temperature.The solvent-free anti-pollution flashover organosilicon coating of component A and B component configuration, the operating time of Ju You≤8 hour under room temperature.
Embodiment 3
Present embodiments provide a solvent-free anti-pollution flashover organosilicon coating, it comprises following component:
Viscosity is 6000mPa.s, containing the polydimethylsiloxane 100 parts of end-vinyl; Other components are identical with embodiment 1.
The preparation method of the solvent-free anti-pollution flashover organosilicon coating described in this embodiment, with embodiment 1.
The solvent-free anti-pollution flashover organosilicon coating of single-component can store 3 months low temperature 0 ~ 5 DEG C.Can more than 12 months be stored under component A and B component normal temperature.The solvent-free anti-pollution flashover organosilicon coating of component A and B component configuration, the operating time of Ju You≤8 hour under room temperature.
Comparative example
Present embodiments provide a solvent-free anti-pollution flashover organosilicon coating, it comprises following component:
Thermal silica 15 parts (A200, Japanese AEROSIL company); Other components are identical with embodiment 2.
The preparation method of the solvent-free anti-pollution flashover organosilicon coating described in this embodiment, with embodiment 1.
Cure test:
Pour the solvent-free anti-pollution flashover organosilicon coating in embodiment and comparative example in Teflon mould (groove depth 2mm), after its natural levelling, insert in constant temperature oven, temperature is 60 DEG C, set time is 60min, this condition of cure and existing People's Republic of China's power industry standard (DL/T 627-2012) there are differences, but due to release solvent-free in its operating process, do not produce small molecules product, production efficiency is fast, is still expected in power industry large-scale application.
Table one is the key technical indexes contrast table (except viscosity measurements, other detection methods all perform according to People's Republic of China (PRC) power industry standard DL/T 627-2012) of product embodiments of the present invention and comparative example.
The key technical indexes contrast table of table one product embodiments of the present invention and comparative example
As can be seen from upper table test data, solvent-free anti-pollution flashover organosilicon coating of the present invention, after intermediate temperature setting, maintains electrical property, hydrophobic nature, mechanical property etc. that original condensed type RTV coating has.Because it is not containing solvent, can in warm fast setting, therefore greatly reduce the impact that solvent brings, simultaneously due to its fast setting that can heat up, therefore improve production efficiency, be expected in power industry large-scale application.
Although the specific embodiment of the present invention describes in detail, should not be construed as the restriction of the protection domain to this patent.In the scope described by claims, the various amendment that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (18)
1. a solvent-free anti-pollution flashover organosilicon coating, is characterized in that: this coating mainly comprises following parts by weight of component:
Polysiloxane 100 parts containing at least two silico ethylene bases;
Polysiloxane 1-20 part containing at least two silicon hydrogen bases;
White carbon black 5-25 part;
Fire-retardant filler 10-40 part;
Containing Vinyl MQ silicon resin 10-35 part;
Hydrophober 2-8 part;
Catalyst for addition reaction of hydrogen and silicon 0.1-10 part;
Tackifier 1-5 part;
Stopper 0.0001-10 part.
2. solvent-free anti-pollution flashover organosilicon coating according to claim 1, it is characterized in that: the described polysiloxane containing at least two silico ethylene bases, in the middle of the two ends that the vinyl that itself and Si are directly connected can be positioned at molecular chain or molecular chain, viscosity at its 25 DEG C is in the scope of 500mPa.s ~ 5000mPa.s, and its molecular structure can as shown in (I):
R
1 aSiO
(4-a)/2(I)
Wherein, 1.95<a<2.05, R
1for methyl, phenyl, trifluoro propyl or vinyl etc., its medium vinyl accounts for all R
1the molar ratio of group is 0.02-5%.
3. solvent-free anti-pollution flashover organosilicon coating according to claim 1, it is characterized in that the described polysiloxane containing at least two silicon hydrogen bases, in the middle of the two ends that the hydrogen atom that itself and Si are directly connected can be positioned at molecular chain or molecular chain, viscosity at its 25 DEG C is in the scope of 1mPa.s ~ 500mPa.s, and its molecular structure can as shown in (II):
R
2 bH
cSiO
(4-b-c)/2(II)
Wherein, 1≤b≤2,0.01≤c≤1.0,1≤b+c≤2.5, R
2for one or more in methyl, ethyl, propyl group, phenyl or trifluoro propyl.
4. solvent-free anti-pollution flashover organosilicon coating according to claim 1, is characterized in that: described white carbon black is wet method white carbon black, and its specific surface area is 150-250m
2/ g, its median size is 1-10 μm.
5. solvent-free anti-pollution flashover organosilicon coating according to claim 1, is characterized in that: described fire-retardant filler is one or more in aluminium hydroxide, magnesium hydroxide, decabromodiphenyl oxide.
6. solvent-free anti-pollution flashover organosilicon coating according to claim 1, it is characterized in that: the described silicone resin containing vinyl is MQ resin, MDQ resin or MTQ resin, wherein MQ resin for best, MQ resin medium vinyl content be 1.0-4.0%, M/Q ratio is 0.6-0.9.
7. solvent-free anti-pollution flashover organosilicon coating according to claim 1, is characterized in that: the lower molecular weight polydimethylsiloxane of described hydrophober to be viscosity be 1mPa.s-1000mPa.s, Diphenylsilanediol, viscosity are any one or a few in the fluorine containing silicone oil of 1mPa.s-1000mPa.s, white oil.
8. solvent-free anti-pollution flashover organosilicon coating according to claim 1, is characterized in that: described catalyst for addition reaction of hydrogen and silicon is the catalyzer containing one or more metallic elements in platinum, palladium, rhodium.
9. solvent-free anti-pollution flashover organosilicon coating according to claim 8, is characterized in that: wherein catalyst made from platonic is for best.
10. solvent-free anti-pollution flashover organosilicon coating according to claim 1, is characterized in that: containing one or more in alkoxyl group, epoxy group(ing), ester group in described tackifier, containing any one in silicon hydrogen base or silico ethylene base.
11. according to solvent-free anti-pollution flashover organosilicon coating according to claim 1, it is characterized in that: described stopper is alkynol compound, enyne compounds or t etram-ethyltetravinylcyclotetrasiloxane, described alkynol compound is one or more in 2-methyl-3-butyne-2-alcohol, 3,5-dimethyl-1-hexin-3-alcohol, 2-phenyl-3-butyne-2-alcohol, 1-ethynylcyclohexanol.
12., according to solvent-free anti-pollution flashover organosilicon coating according to claim 11, is characterized in that: the preferred alkynol compound of described stopper.
13. solvent-free anti-pollution flashover organosilicon coatings according to claim 1, it is characterized in that: in described component, is 1.0 ~ 5.0 containing silicon hydrogen base contained in the polysiloxane of at least two silicon hydrogen bases and tackifier and the polysiloxane containing at least two silico ethylene bases, containing the mol ratio of silico ethylene base contained in Vinyl MQ silicon resin and tackifier.
14. solvent-free anti-pollution flashover organosilicon coatings according to claim 1, is characterized in that: the viscosity of coating at 25 DEG C of its formula gained is 1000mPa.s ~ 10000mPa.s.
The making method of 15. 1 kinds of solvent-free anti-pollution flashover organosilicon coatings according to claim 1, comprises the following steps:
A. the preparation of sizing: by the polysiloxane 100 parts containing at least two silico ethylene bases; White carbon black 5-25 part; Fire-retardant filler 10-40 part; Containing Vinyl MQ silicon resin 10-35 part; Hydrophober 2-8 part is mediated evenly in kneader, then grinds on three-roller, and being transferred to evenly in drying kettle heats up stirs, and keep material temperature at 100-150 DEG C, vacuum tightness is not less than-0.085MPa, and airtight after vacuumizing dry 2-4h to make sizing stand-by;
B. glue is joined: be transferred to by dried sizing and join in glue still, when sizing material temperature is cooled to below 30 DEG C, first the polysiloxane 2-25 part containing at least two silicon hydrogen bases, stopper 1-5 part, tackifier 0.0001-10 part is added, to be mixed evenly after, finally add catalyst for addition reaction of hydrogen and silicon 0.1-10 part and stir 10-30min obtain described solvent-free anti-pollution flashover organosilicon coating after mixing; Last package encapsulation, stand-by in low-temperature storage.
The making method of 16. solvent-free anti-pollution flashover organosilicon coatings according to claim 15, is characterized in that: described low temperature is 0 ~ 5 DEG C.
The making method of 17. 1 kinds of solvent-free anti-pollution flashover organosilicon coatings according to claim 1, comprises the following steps:
A. the preparation of sizing: by the polysiloxane 100 parts containing at least two silico ethylene bases; White carbon black 5-25 part; Fire-retardant filler 10-40 part; Containing Vinyl MQ silicon resin 10-35 part; Hydrophober 2-8 part is mediated evenly in kneader, then grinds on three-roller, and being transferred to evenly in drying kettle heats up stirs, and keep material temperature at 100-150 DEG C, vacuum tightness is not less than-0.085MPa, airtight after vacuumizing dry 2-4h, makes sizing stand-by;
The configuration of b.A component: be transferred to by dried sizing 100 parts and join in glue still, when sizing material temperature is cooled to below 30 DEG C, add catalyst for addition reaction of hydrogen and silicon 0.1-10 part, stopper 1-5 part mixes obtained component A;
The configuration of c.B component: dried sizing 100 parts is transferred to and joins in glue still, when sizing material temperature is cooled to below 30 DEG C, add the configuration that polysiloxane 2-25 parts of at least two silicon hydrogen bases and tackifier 0.0001-10 part mix obtained B component;
D. glue is joined: during use, by AB component according to 1; 1 mixes and obtains described solvent-free anti-pollution flashover organosilicon coating.
The making method of 18. solvent-free anti-pollution flashover organosilicon coatings as claimed in claim 17, is characterized in that: described steps d. join glue obtain solvent-free anti-pollution flashover organosilicon coating at room temperature tool have≤operating time of 8 hours.
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| CN106085220A (en) * | 2016-05-13 | 2016-11-09 | 杭州师范大学 | A kind of preparation method and applications of organic silicon flame-retardant fireproof coating |
| CN106167621A (en) * | 2016-08-03 | 2016-11-30 | 深圳市安品有机硅材料有限公司 | Flame-retardant room temperature vulcanized liquid silicone rubber |
| CN106752928A (en) * | 2016-12-29 | 2017-05-31 | 北京世纪航凯电力科技股份有限公司 | A kind of solvent-free antifouling flush paint of visible-light curing and preparation method thereof |
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| CN106167621B (en) * | 2016-08-03 | 2019-10-29 | 深圳市安品有机硅材料有限公司 | Flame-retardant room temperature vulcanized liquid silicone rubber |
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| WO2019056347A1 (en) * | 2017-09-25 | 2019-03-28 | Wacker Chemie Ag | Polysiloxane composition |
| CN109233620A (en) * | 2018-08-09 | 2019-01-18 | 成都拓利科技股份有限公司 | A kind of RTV anti-pollution flashover coating of organic solvent-free and preparation method thereof |
| CN109233627B (en) * | 2018-10-08 | 2021-02-19 | 成都硅宝科技股份有限公司 | Bi-component addition type liquid silicone rubber for insulator coating and preparation method thereof |
| CN109233627A (en) * | 2018-10-08 | 2019-01-18 | 成都硅宝科技股份有限公司 | A kind of insulator coating bi-component addition type liquid silastic and preparation method thereof |
| CN110628326B (en) * | 2019-10-25 | 2022-02-15 | 广州玖盈化工材料有限公司 | Environment-friendly organic silicon three-proofing coating and preparation method thereof |
| CN111440531A (en) * | 2020-05-14 | 2020-07-24 | 成都拓利科技股份有限公司 | Solvent-free moisture-curing type organic silicon coating and preparation method thereof |
| CN115584205A (en) * | 2022-07-22 | 2023-01-10 | 浙江鑫钰新材料有限公司 | Novel antibacterial mildew-proof easily-cleaned organic silicon finishing agent and preparation process thereof |
| CN115851125A (en) * | 2022-12-02 | 2023-03-28 | 国网山东省电力公司电力科学研究院 | Double-component silicone rubber anti-pollution flashover coating for insulation protection of power system and preparation method and application thereof |
| CN115851125B (en) * | 2022-12-02 | 2023-12-08 | 国网山东省电力公司电力科学研究院 | Double-component silicone rubber anti-pollution flashover coating for insulation protection of power system and preparation method and application thereof |
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