CN108795060A - A kind of polymer light insulating materials and preparation method thereof for aerial condutor - Google Patents
A kind of polymer light insulating materials and preparation method thereof for aerial condutor Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of 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; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
- H01B3/465—Silicone oils
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- 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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Abstract
The present invention provides a kind of polymer light insulating materials and preparation method thereof for aerial condutor, this material is two-part room temperature curing liquid insulating material, is made of component A and B component；Wherein component A is by vinyl silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, titanium dioxide, platinum flame retardation catalyst, inhibitor composition；B component is made of containing hydrogen silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, black pigment, its solid content is 100%, can be fully cured in 15 minutes, breakdown voltage is up to 25 kV/mm, fire-retardant is FV-0 grades, service life 15 years or more, reaches 1 grade with overhead bare conductor adhesive force under natural environment, has curing rate fast, good insulation preformance, strong adhesive force, insulation performance is strong, advantage with long service life.This new insulation material is coated on overhead bare conductor, and can effectively protect bare conductor is corroded by external environment, prevents bare conductor electric leakage from causing the accident generation.
Description
Technical field
The invention belongs to insulating polymeric material FIELD OF THE INVENTIONThe more particularly to a kind of polymer lights for aerial condutor
Insulating materials further relates to a kind of preparation method of the polymer light insulating materials for aerial condutor.
Background technology
For the overhead bare conductor of early application, feature is conducive to heat dissipation in use, low cost and also in order to
The stretching resistance for increasing conducting wire, is often stranded in aluminum steel and steel wire outside steel core wire, referred to as " steel-cored aluminium strand "；It is generally used in open country
Outer distribution line is set up.Since bare conductor does not have insulation sheath, conducting wire, which is directly exposed in atmospheric environment, to be easy to be corroded,
Cause overhead bare conductor in populous region, close on trees region, crossing elimination leap（River, pond, overpass etc.）'s
Use easy initiation accident.
At present during electric network reconstruction, overhead bare conductor is just gradually replaced by suspended insulated guide wire.Overhead insulating is led
Line is the transmission pressure that its outer layer covers has insulating layer, and under the protection of insulating layer, core reduces the contact with air, drops significantly
The possibility that low core is aoxidized, is corroded, the service life of extension wire；Decrease extraneous undesirable element such as dust, drift
The influence to conducting wire such as float.The insulating layer of most important suspended insulated guide wire promotes the external insulation performance of circuit, reduces alternate
The generation of short circuit and human electric shock's accident.And distribution line overhead conductor insulationization is constructed, generally use is changed to insulated conductor,
That there are power off times is short, the duration is tight, it is of high cost, need replacing the problems such as shaft tower.
Invention content
Based on the prior art there are the above problem, the present invention provides a kind of polymer light insulation material for aerial condutor
Material cures liquid insulating material for bi-component, is made of component A and B component；Wherein component A is by vinyl silicone oil, nanometer
Hydrophobic silica, lightweight silicon powder, titanium dioxide, platinum flame retardation catalyst, inhibitor composition；B component is by containing hydrogen silicone oil, nanometer
Hydrophobic silica, lightweight silicon powder, black pigment composition, component A presses 1 with B component when use:After 1 ratio is mixed
Use, this insulating materials its solid content is 100%, can be fully cured in 15 minutes, breakdown voltage up to 25 kV/mm,
Fire-retardant is FV-0 grade, and service life 15 years or more, reaches 1 grade with overhead bare conductor adhesive force under natural environment, has solidification fast
Degree is fast, and good insulation preformance, strong adhesive force, insulation performance is strong, advantage with long service life.This new insulation material is coated in aerial
On bare conductor, can effectively protect bare conductor is corroded by external environment, prevents bare conductor electric leakage from causing the accident generation.
A kind of polymer light insulating materials for aerial condutor, the wherein parts by weight of the constituent of component A are such as
Under：150-300 parts of vinyl silicone oil, 30-80 parts of nano-sized hydrophobic silica, 80-200 parts of lightweight silicon powder, 10 parts of titanium dioxide,
0.5 part of 0.1 part of platinum flame retardation catalyst, inhibitor composition；The parts by weight of the wherein constituent of B component are as follows：Silicon Containing Hydrogen
150-300 parts oily, 30-80 parts of nano-sized hydrophobic silica, 80-200 parts of lightweight silicon powder, 1 part of black pigment.
Preferably, the vinyl silicone oil is two kinds of vinyl silicone oils, its viscosity of one of which vinyl silicone oil is
200-1000cps, contents of ethylene 2.0-3.0%, parts by weight are 50-100 parts；Its viscosity of another vinyl silicone oil
For 10000-20000cps, contents of ethylene 0.2-1.0%, parts by weight are 100-200 parts, the vinyl of different viscosities
The viscosity and the intensity after solidification that silicone oil reaches needs after allocating properly.
Preferably, the containing hydrogen silicone oil is two kinds of containing hydrogen silicone oils, its viscosity of one of which containing hydrogen silicone oil is 500-
1000cps, hydrogen content 0.7-1.5%, parts by weight are 50-100 parts；Its viscosity of another containing hydrogen silicone oil is 3000-
5000cps, hydrogen content 0.2-1.0%, parts by weight are 100-200 parts, and for containing hydrogen silicone oil as curing agent, viscosity is smaller
Chain length after then curing is shorter, and elongation is lower, and intensity is lower, for the intensity for ensureing after paint solidification, needs mixed by allocating
Close the intensity after the viscosity and solidification for reaching required
Preferably, it is 0.8-0.9g/cm3 that the lightweight silicon powder, which is density, and mesh granularity is 5000-8000 mesh；The titanium
White powder is rutile type titanium white；The inhibitor is linalool；The black pigment is the black powder of Degussa 4#.Rutile
Type titanium dioxide compared to anatase thpe white powder have with larger stability and relative density, therefore have higher refractive index with
Dielectric constant and lower heat conductivity are more suitable for wild environment, while titanium dioxide is referred to as the color in paint ingredient
Show agent.The linalool for reducing system curing rate.
A kind of preparation method of polymer light insulating materials for aerial condutor comprising following steps：
Step S10：Vinyl silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, titanium dioxide are added in high force dispersion machine,
Start high force dispersion machine, rotating speed is 800r/min and is warming up to 100 DEG C, and the condition is kept to make material isothermal reaction 2 hours；
Step S20：High force dispersion machine is carried out after isothermal reaction in step S10 to be evacuated to -0.8 to -0.9mpa, keeps negative
Press strip part two hours；
Step S30：After material is cooled to 60 DEG C in waiting step S20, platinum flame retardation catalyst is continuously added to high force dispersion machine
And inhibitor；Start high force dispersion machine and be evacuated to -0.8 and arrive -0.9mpa, until the near room of temperature of charge in high force dispersion machine
Temperature completes the preparation of component A；
Step S31：High force dispersion machine is closed, the material of step S30 is discharged and is packed, closed packing jar is packed into.
Step S40：B component is prepared, containing hydrogen silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, black pigment are added
In high force dispersion machine, start dispersion machine and be warming up to 100 DEG C, isothermal reaction 2 hours, after be evacuated to -0.8 and arrive -0.9mpa, protect
It holds two hours, is cooled to room temperature；
Step S41：High force dispersion machine is closed, the material of step S40 is discharged and is packed, closed packing jar is packed into.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the fortune of high force dispersion machine
Row rotating speed is 800r/min, which ensures that material disperses and is uniformly mixed while power consumption is relatively low.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the step S30 is also
Including step S31：Discharging in dispersion machine is packed, is fitted into closed packing jar.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the step S40 is also
Including step S41：Discharging in dispersion machine is packed, is fitted into closed packing jar.It is fitted into closed packing jar, adopts
With closed packing jar be prevent component A from contacting with B component with air so that material react it is rotten.
Material be warming up in wherein step S20 and step S40 be evacuated to after 100 DEG C -0.8 mpa to -
0.9mpa is to provide hot vacuum environment for material, so that the low molecule in material is deviate from using diffusion principle.
It is to prevent material from occurring in advance after contacting with the air that -0.8 mpa to -0.9mpa is evacuated in wherein step S30
Catalysis reaction.
It is to facilitate discharging and the packaging of material to be cooled to room temperature in wherein step S30 and S40.
Beneficial effects of the present invention：
Its solid content of the material is 100%, and curing type cures for addition reaction.It is fast with curing rate, it can be in 15 minutes
It is fully cured；Insulation performance is strong, and breakdown voltage is up to 25kV/mm；Strong adhesive force reaches 1 grade with overhead bare conductor adhesive force；Nothing
Halogen environmental protection flame retardant, it is fire-retardant to reach FV-0 grades；Long lifespan uses under natural environment, the features such as up to 15 years or more.
Specific implementation mode
The present invention is described in detail with reference to specific embodiment.
Embodiment one：
A kind of configuration material of the polymer light insulating materials for aerial condutor is weighed by following weight：
Viscosity is 200-1000cps, 50 parts of the vinyl silicone oil that contents of ethylene is 2.0-3.0%, viscosity 10000-
20000cps, contents of ethylene are that 30 parts of 100 parts of vinyl silicone oil, nano-sized hydrophobic silica, the light silica of 0.2-1.0% is micro-
0.5 part of 80 parts of powder, 10 parts of model R-930 titanium dioxides, 0.1 part of platinum flame retardation catalyst, inhibitor linalool composition；Viscosity is
500-1000cps, 50 parts of the containing hydrogen silicone oil that hydrogen content is 0.7-1.5%, viscosity 3000-5000cps, hydrogen content 0.2-
1.0% 100 parts of containing hydrogen silicone oil, 30 parts of nano-sized hydrophobic silica, 80 parts of lightweight silicon powder, 1 part of the black powder pigment of Degussa 4#.
Configure a kind of polymer light insulating materials for aerial condutor：
Step S10：Vinyl silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, titanium dioxide are added in high force dispersion machine,
Start high force dispersion machine, rotating speed is 800r/min and is warming up to 100 DEG C, and the condition is kept to make material isothermal reaction 2 hours；
Step S20：High force dispersion machine is carried out after isothermal reaction in step S10 to be evacuated to -0.8 to -0.9mpa, keeps negative
Press strip part two hours；
Step S30：After material is cooled to 60 DEG C in waiting step S20, platinum flame retardation catalyst is continuously added to high force dispersion machine
And inhibitor；Start high force dispersion machine and be evacuated to -0.8 and arrive -0.9mpa, until the near room of temperature of charge in high force dispersion machine
Temperature completes the preparation of component A；
Step S40：B component is prepared, strength is added in containing hydrogen silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, black pigment
In dispersion machine, start dispersion machine and be warming up to 100 DEG C, isothermal reaction 2 hours, after be evacuated to -0.8 and arrive -0.9mpa, keep two
Hour, it is cooled to room temperature；
Preferably, the running speed of high force dispersion machine is 800r/min.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the step S30 is also
Including step S31：Discharging in dispersion machine is packed, is fitted into closed packing jar.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the step S40 is also
Including step S41：Discharging in dispersion machine is packed, is fitted into closed packing jar.
In actual use, the component A that step S31 and step S41 are obtained is pressed 1 with B component using liftout machine:1 ratio
After example extrusion mixing, by machine nozzle, mixture is coated on bare conductor.Under room temperature, 15 minutes completion of cures of mixture
After form insulating layer, the conducting wire with insulating layer can put into operation.
Embodiment two：
A kind of configuration material of the polymer light insulating materials for aerial condutor is weighed by following weight：
Viscosity is 200-1000cps, 75 parts of the vinyl silicone oil that contents of ethylene is 2.0-3.0%, viscosity 10000-
20000cps, contents of ethylene are that 55 parts of 150 parts of vinyl silicone oil, nano-sized hydrophobic silica, the light silica of 0.2-1.0% is micro-
0.5 part of 140 parts of powder, 10 parts of model R-930 titanium dioxides, 0.1 part of platinum flame retardation catalyst, inhibitor linalool composition；Viscosity
For 500-1000cps, 75 parts of the containing hydrogen silicone oil that hydrogen content is 0.7-1.5%, viscosity 3000-5000cps, hydrogen content 0.2-
1.0% 150 parts of containing hydrogen silicone oil, 55 parts of nano-sized hydrophobic silica, 140 parts of lightweight silicon powder, 1 part of the black powder pigment of Degussa 4#.
Configure a kind of polymer light insulating materials for aerial condutor：
Step S10：Vinyl silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, titanium dioxide are added in high force dispersion machine,
Start high force dispersion machine, rotating speed is 800r/min and is warming up to 100 DEG C, and the condition is kept to make material isothermal reaction 2 hours；
Step S20：High force dispersion machine is carried out after isothermal reaction in step S10 to be evacuated to -0.8 to -0.9mpa, keeps negative
Press strip part two hours；
Step S30：After material is cooled to 60 DEG C in waiting step S20, platinum flame retardation catalyst is continuously added to high force dispersion machine
And inhibitor；Start high force dispersion machine and be evacuated to -0.8 and arrive -0.9mpa, until the near room of temperature of charge in high force dispersion machine
Temperature completes the preparation of component A；
Step S40：B component is prepared, strength is added in containing hydrogen silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, black pigment
In dispersion machine, start dispersion machine and be warming up to 100 DEG C, isothermal reaction 2 hours, after be evacuated to -0.8 and arrive -0.9mpa, keep two
Hour, it is cooled to room temperature；
Preferably, the running speed of high force dispersion machine is 800r/min.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the step S30 is also
Including step S31：Discharging in dispersion machine is packed, is fitted into closed packing jar.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the step S40 is also
Including step S41：Discharging in dispersion machine is packed, is fitted into closed packing jar.
In actual use, the component A that step S31 and step S41 are obtained is pressed 1 with B component using liftout machine:1 ratio
After example extrusion mixing, by machine nozzle, mixture is coated on bare conductor.Under room temperature, 15 minutes completion of cures of mixture
After form insulating layer, the conducting wire with insulating layer can put into operation.
Embodiment three：
A kind of configuration material of the polymer light insulating materials for aerial condutor is weighed by following weight：
Viscosity is 200-1000cps, 100 parts of the vinyl silicone oil that contents of ethylene is 2.0-3.0%, viscosity 10000-
20000cps, contents of ethylene are that 80 parts of 200 parts of vinyl silicone oil, nano-sized hydrophobic silica, the light silica of 0.2-1.0% is micro-
0.5 part of 200 parts of powder, 10 parts of model R-930 titanium dioxides, 0.1 part of platinum flame retardation catalyst, inhibitor linalool composition；Viscosity
For 500-1000cps, 150 parts of the containing hydrogen silicone oil that hydrogen content is 0.7-1.5%, viscosity 3000-5000cps, hydrogen content 0.2-
1.0% 200 parts of containing hydrogen silicone oil, 80 parts of nano-sized hydrophobic silica, 200 parts of lightweight silicon powder, 1 part of the black powder pigment of Degussa 4#.
Configure a kind of polymer light insulating materials for aerial condutor：
Step S10：Vinyl silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, titanium dioxide are added in high force dispersion machine,
Start high force dispersion machine, rotating speed is 800r/min and is warming up to 100 DEG C, and the condition is kept to make material isothermal reaction 2 hours；
Step S20：High force dispersion machine is carried out after isothermal reaction in step S10 to be evacuated to -0.8 to -0.9mpa, keeps negative
Press strip part two hours；
Step S30：After material is cooled to 60 DEG C in waiting step S20, platinum flame retardation catalyst is continuously added to high force dispersion machine
And inhibitor；Start high force dispersion machine and be evacuated to -0.8 and arrive -0.9mpa, until the near room of temperature of charge in high force dispersion machine
Temperature completes the preparation of component A；
Step S40：B component is prepared, strength is added in containing hydrogen silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, black pigment
In dispersion machine, start dispersion machine and be warming up to 100 DEG C, isothermal reaction 2 hours, after be evacuated to -0.8 and arrive -0.9mpa, keep two
Hour, it is cooled to room temperature；
Preferably, the running speed of high force dispersion machine is 800r/min.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the step S30 is also
Including step S31：Discharging in dispersion machine is packed, is fitted into closed packing jar.
Preferably, the preparation method of a kind of polymer light insulating materials for aerial condutor, the step S40 is also
Including step S41：Discharging in dispersion machine is packed, is fitted into closed packing jar.
In actual use, the component A that step S31 and step S41 are obtained is pressed 1 with B component using liftout machine:1 ratio
After example extrusion mixing, by machine nozzle, mixture is coated on bare conductor.Under room temperature, 15 minutes completion of cures of mixture
After form insulating layer, the conducting wire with insulating layer can put into operation.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of polymer light insulating materials for aerial condutor, which is characterized in that it cures fluid insulation for bi-component
Material is made of component A and B component；Wherein component A by vinyl silicone oil, nano-sized hydrophobic silica, lightweight silicon powder,
Titanium dioxide, platinum flame retardation catalyst, inhibitor composition；B component by containing hydrogen silicone oil, nano-sized hydrophobic silica, lightweight silicon powder,
Black pigment forms.
2. a kind of polymer light insulating materials for aerial condutor according to claim 1, which is characterized in that its A
The parts by weight of the constituent of component are as follows：150-300 parts of vinyl silicone oil, 30-80 parts of nano-sized hydrophobic silica, lightweight
0.5 part of 80-200 parts of silicon powder, 10 parts of titanium dioxide, 0.1 part of platinum flame retardation catalyst, inhibitor composition.
3. a kind of polymer light insulating materials for aerial condutor according to claim 1, which is characterized in that its B
The parts by weight of the constituent of component are as follows：150-300 parts of containing hydrogen silicone oil, 30-80 parts of nano-sized hydrophobic silica, light silica
80-200 parts of micro mist, 1 part of black pigment.
4. according to a kind of polymer light insulating materials for aerial condutor of claims 1 or 2, which is characterized in that described
Vinyl silicone oil be two kinds of vinyl silicone oils, one of which vinyl silicone oil its viscosity is 200-1000cps, contents of ethylene
For 2.0-3.0%, parts by weight are 50-100 parts；Its viscosity of another vinyl silicone oil is 10000-20000cps, vinyl
Content is 0.2-1.0%, and parts by weight are 100-200 parts.
5. according to a kind of polymer light insulating materials for aerial condutor of claim 1 or 3, which is characterized in that described
Containing hydrogen silicone oil be two kinds of containing hydrogen silicone oils, one of which containing hydrogen silicone oil its viscosity is 500-1000cps, hydrogen content 0.7-
1.5%, parts by weight are 50-100 parts；Its viscosity of another containing hydrogen silicone oil is 3000-5000cps, hydrogen content 0.2-
1.0%, parts by weight are 100-200 parts.
6. according to a kind of polymer light insulating materials for aerial condutor of Claims 2 or 3, which is characterized in that described
Lightweight silicon powder be density be 0.8-0.9g/cm3, mesh granularity be 5000-8000 mesh；The titanium dioxide is rutile type titanium
White powder；The inhibitor is linalool；The black pigment is the black powder of Degussa 4#.
7. a kind of preparation method of polymer light insulating materials for aerial condutor, which is characterized in that it includes following step
Suddenly：
Step S10：Vinyl silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, titanium dioxide are added in high force dispersion machine,
Start high force dispersion machine, rotating speed is 800r/min and is warming up to 100 DEG C, and the condition is kept to make material isothermal reaction 2 hours；
Step S20：High force dispersion machine is carried out after isothermal reaction in step S10 to be evacuated to -0.8 to -0.9mpa, keeps negative
Press strip part two hours；
Step S30：After material is cooled to 60 DEG C in waiting step S20, platinum flame retardation catalyst is continuously added to high force dispersion machine
And inhibitor；Start high force dispersion machine and be evacuated to -0.8 and arrive -0.9mpa, until the near room of temperature of charge in high force dispersion machine
Temperature completes the preparation of component A, close high force dispersion machine and discharge；
Step S40：B component is prepared, strength is added in containing hydrogen silicone oil, nano-sized hydrophobic silica, lightweight silicon powder, black pigment
In dispersion machine, start dispersion machine and be warming up to 100 DEG C, isothermal reaction 2 hours, after be evacuated to -0.8 and arrive -0.9mpa, keep two
Hour, it closes high force dispersion machine after being cooled to room temperature and discharges；
A kind of preparation method of polymer light insulating materials for aerial condutor according to claim 7, which is characterized in that
The running speed of high force dispersion machine is 800r/min.
8. a kind of preparation method of polymer light insulating materials for aerial condutor according to claim 7, feature exist
In the step S30 further includes step S31：Discharging in dispersion machine is packed, is fitted into closed packing jar.
9. a kind of preparation method of polymer light insulating materials for aerial condutor according to claim 7, feature exist
In the step S40 further includes step S41：Discharging in dispersion machine is packed, is fitted into closed packing jar.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019353A (en) * | 2019-11-26 | 2020-04-17 | 东莞市朗晟材料科技有限公司 | High-breakdown-voltage-resistant silica gel for electric wire, and preparation method and use method thereof |
| CN113604051A (en) * | 2021-08-20 | 2021-11-05 | 凤阳加松新型材料科技有限公司 | Vulcanized silica gel pad and manufacturing method thereof |
| US11236232B2 (en) * | 2019-12-23 | 2022-02-01 | Wacker Chemie Ag | Crosslinkable compositions |
| CN115960465A (en) * | 2023-01-03 | 2023-04-14 | 广东电网有限责任公司中山供电局 | Polymer insulating material and preparation method and application thereof |
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| CN113604051A (en) * | 2021-08-20 | 2021-11-05 | 凤阳加松新型材料科技有限公司 | Vulcanized silica gel pad and manufacturing method thereof |
| CN113604051B (en) * | 2021-08-20 | 2022-09-16 | 凤阳加松新型材料科技有限公司 | Vulcanized silica gel pad and manufacturing method thereof |
| CN115960465A (en) * | 2023-01-03 | 2023-04-14 | 广东电网有限责任公司中山供电局 | Polymer insulating material and preparation method and application thereof |
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Application publication date: 20181113 |