CN108314878A - A kind of preparation method of composite insulating material - Google Patents
A kind of preparation method of composite insulating material Download PDFInfo
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- CN108314878A CN108314878A CN201810125412.6A CN201810125412A CN108314878A CN 108314878 A CN108314878 A CN 108314878A CN 201810125412 A CN201810125412 A CN 201810125412A CN 108314878 A CN108314878 A CN 108314878A
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5006—Amines aliphatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5006—Amines aliphatic
- C08G59/502—Polyalkylene polyamines
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L63/04—Epoxynovolacs
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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
- H01B3/40—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 epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
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Abstract
The present invention provides a kind of preparation method of composite insulating material, includes the following steps：A, basis material is imported into mixing in mixer, modified alta-mud is added later and is blended, stirs to get material one；B, modified diamond particle, epoxy resin pre-polymerization liquid and high wear-resistant carbon black are mixed, stirs to get material two；C, material one is added in organic solvent, adds alumina particle, magnesium oxide particle, material two, aliphatic polyamine and catalyst is added in heating, stirring, ultrasonic disperse later, and heating, stirring obtain material three；D, material three is dried, re-compacted molding.Composite insulating material produced by the present invention has the stronger capacity of heat transmission, can reduce the steady temperature of equipment during use, improves thermal stability, prolongs the service life.
Description
Technical field
The invention belongs to insulating materials technical fields, and in particular to a kind of preparation method of composite insulating material.
Background technology
Volume resistivity is more than on electrotechnics for high molecular material currently, the insulating layer of cable is most commonly used
The material that the substance of 109 Ω cm is constituted is known as insulating materials, that is, for making device that can electrically prevent electric current
By material.Crosslinked polyethylene has excellent dielectric properties and mechanical performance, oneself is widely used in high pressure and super-pressure
In plastic insulating power cable.With the development of super-pressure, extra-high voltage direct-current power transmission and transformation system, the insulation ag(e)ing in operational process
Problem is increasingly severe, oneself becomes the major obstacle that insulated cable develops to super-pressure.When the applied electric field of insulating polymer is strong
When degree reaches 1/10th of breakdown field strength, poplar bundles can be caused in the Electric Power Equipment Insulation to work long hours, reduce electricity
Cable service life.The high voltage power cable insulating materials being made of low density polyethylene (LDPE), by various in During Process of Long-term Operation
The gradual aging of influence of aging action, leads to the decline of the dielectric properties and mechanical performance of material.According to the classification of aging action
Voltage ageing, heat ageing, mechanical aging and Electrochemical Ageing can be divided into.Wherein heat ageing is the main of PE cable insulation damage
Inducement, different thermal aging times and condition can lead to the difference of polyethylene inner molecular structure, and then influence its space charge spy
Property.
In summary, it is therefore desirable to a kind of better insulating materials, to improve the deficiencies in the prior art.
Invention content
The object of the present invention is to provide a kind of preparation method of composite insulating material, composite insulating materials produced by the present invention
With the stronger capacity of heat transmission, the steady temperature of equipment during use can be reduced, improves thermal stability, extends and uses the longevity
Life.
The present invention provides the following technical solutions：
A kind of preparation method of composite insulating material, including following preparation process：
A, basis material being imported into mixing 1-2h in mixer, temperature is 220-245 DEG C, and modified alta-mud is added later and is blended,
15-25min is stirred, material one is obtained；
B, modified diamond particle, epoxy resin pre-polymerization liquid and high wear-resistant carbon black are mixed, is slowly stirred 20- under vacuum
25min deviates from the bubble in mixture, obtains material two；
C, material one is added in organic solvent, adds alumina particle, magnesium oxide particle, heated simultaneously at 80-90 DEG C
40-50min, re-ultrasonic dispersion 20-30min are stirred, material two, aliphatic polyamine and catalyst are added later, at 90-120 DEG C
Lower heating water bath, while mechanical agitation 30-50min is used, obtain material three；
D, material three is placed in drying box, the dry 15-20min at 120-130 DEG C, then imported in molding machine, in high temperature
Compression moulding under condition of high voltage, obtains finished product.
Preferably, the basis material of the step a is bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol S type ring
The mixture of oxygen resin and novolac type epoxy resin.
Preferably, the method for preparing modified bentonite of the step a is：Bentonite is added in distilled water, ultrasound
After disperseing 30-50min, the large particulate matter of filtering removal precipitation, then centrifuge, dry, grind, roast, by baked swelling
Soil is placed in ultrasonic disperse 10-15min in the acetum of a concentration of 8-10mol/L, then is placed in heating reaction 1- at 65-75 DEG C
2h is refiltered, is washed until neutral, drying, bentonite is added in toluene, under nitrogen protection ultrasonic disperse 10-
Then 15min is added in the aqueous solution of polyethyleneimine at 90-100 DEG C, after ultrasonic disperse 10-15min, at 80-100 DEG C
Lower reaction 3-4h, filtering are washed with distilled water and absolute ethyl alcohol, are dried in vacuo 5-6h at 60-80 DEG C, you can are obtained modified swollen
Profit soil.
Preferably, the preparation method of the modification diamond particle of the step b is：Diamond particle is placed in high temperature furnace
In, with 450-480 DEG C of heating 2-3h, you can obtain modified diamond particle.
Preferably, the preparation method of the epoxy resin pre-polymerization liquid of the step b is：By epoxy resin toughened, toluene, ethers
Curing agent, high wear-resistant carbon black, ultra-violet absorber, antioxidant and light stabilizer are mixed to join in reaction kettle, in 100-140r/
10-15min is stirred under the rotating speed of min, temperature of reaction kettle is being risen to 80-90 DEG C, is being stirred under the rotating speed of 600-800r/min
When reaction kettle is down to room temperature ethers catalyst is added, and stir 10-20min with the rotating speed of 80-100r/min in 25-35min,
It can be obtained epoxy resin pre-polymerization liquid.
Preferably, the organic solvent of the step c is in dichloromethane, chloroform, carbon tetrachloride and tetrahydrofuran
It is any.
Preferably, the aliphatic polyamine of the step c is in ethylenediamine, propane diamine, diethyl triamine and trientine
It is any.
Preferably, the catalyst of the step c is dimethylformamide or dimethylacetylamide.
The beneficial effects of the invention are as follows：
Composite insulating material produced by the present invention has the stronger capacity of heat transmission, can reduce the stable state temperature of equipment during use
Degree improves thermal stability, prolongs the service life, improve insulating reliability and safety, for reducing because of insulating layer heat damage
And the consumption of materials of write-off equipment, improving the economy of insulating materials application has great significance.
The present invention can improve the high temperature resistance and mechanical strength of insulating materials, reduce the ageing time of insulating materials,
High temperature and pressure effect can be kept lower non-degradable for a long time.
The present invention also has excellent mechanical property, insulation performance and high temperature resistance, while having waterproof, anti-weather old
Change and high-wearing feature, disclosure satisfy that requirement of the power equipment to high temperature resistant and excellent mechanical performance, while having good anti-open air
The performance of adverse circumstances.
Specific implementation mode
Embodiment 1
A kind of preparation method of composite insulating material, including following preparation process：
A, basis material is imported into mixing 2h in mixer, temperature is 220 DEG C, and modified alta-mud is added later and is blended, stirring
15min obtains material one；
B, modified diamond particle, epoxy resin pre-polymerization liquid and high wear-resistant carbon black are mixed, are slowly stirred 25min under vacuum,
Deviate from the bubble in mixture, obtains material two；
C, material one is added in organic solvent, adds alumina particle, magnesium oxide particle, heated and stir at 80 DEG C
50min, re-ultrasonic dispersion 30min, are added material two, aliphatic polyamine and catalyst later, the heating water bath at 90 DEG C, simultaneously
Using mechanical agitation 30min, material three is obtained；
D, material three is placed in drying box, the dry 20min at 120 DEG C, then imported in molding machine, in high-temperature and high-pressure conditions
Lower compression moulding, obtains finished product.
The basis material of step a is bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin and line
The mixture of property phenol aldehyde type epoxy resin.
The method for preparing modified bentonite of step a is：Bentonite is added in distilled water, after ultrasonic disperse 30min,
The large particulate matter of filtering removal precipitation, then centrifuge, dry, grind, roast, baked bentonite is placed in a concentration of
Ultrasonic disperse 10min in the acetum of 10mol/L, then be placed at 65 DEG C heating reaction 2h, refilter, wash until neutrality,
Drying, bentonite is added in toluene, under nitrogen protection ultrasonic disperse 10min, polyethyleneimine then is added at 90 DEG C
In the aqueous solution of amine, after ultrasonic disperse 15min, 4h is reacted at 100 DEG C, filtering is washed, with distilled water and absolute ethyl alcohol 60
5h is dried in vacuo at DEG C, you can obtain modified alta-mud.
The preparation method of the modification diamond particle of step b is：Diamond particle is placed in high temperature furnace, is added with 480 DEG C
Hot 2h, you can obtain modified diamond particle.
The preparation method of the epoxy resin pre-polymerization liquid of step b is：Epoxy resin toughened, toluene, ethers curing agent, height is resistance to
Mill carbon black, ultra-violet absorber, antioxidant and light stabilizer are mixed to join in reaction kettle, are stirred under the rotating speed of 140r/min
Temperature of reaction kettle is being risen to 80 DEG C, 25min is stirred under the rotating speed of 800r/min by 15min, when reaction kettle is down to room temperature,
Ethers catalyst is added, and 20min is stirred with the rotating speed of 80r/min, you can obtains epoxy resin pre-polymerization liquid.
The organic solvent of step c is carbon tetrachloride.
The aliphatic polyamine of step c is diethyl triamine.
The catalyst of step c is dimethylformamide.
Embodiment 2
A kind of preparation method of composite insulating material, including following preparation process：
A, basis material is imported into mixing 1h in mixer, temperature is 225 DEG C, and modified alta-mud is added later and is blended, stirring
15min obtains material one；
B, modified diamond particle, epoxy resin pre-polymerization liquid and high wear-resistant carbon black are mixed, are slowly stirred 20min under vacuum,
Deviate from the bubble in mixture, obtains material two；
C, material one is added in organic solvent, adds alumina particle, magnesium oxide particle, heated and stir at 80 DEG C
40min, re-ultrasonic dispersion 20min, are added material two, aliphatic polyamine and catalyst later, the heating water bath at 90 DEG C, simultaneously
Using mechanical agitation 30min, material three is obtained；
D, material three is placed in drying box, the dry 15min at 120 DEG C, then imported in molding machine, in high-temperature and high-pressure conditions
Lower compression moulding, obtains finished product.
The basis material of step a is bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin and line
The mixture of property phenol aldehyde type epoxy resin.
The method for preparing modified bentonite of step a is：Bentonite is added in distilled water, after ultrasonic disperse 30min,
The large particulate matter of filtering removal precipitation, then centrifuge, dry, grind, roast, baked bentonite is placed in a concentration of
Ultrasonic disperse 10min in the acetum of 8mol/L, then it is placed in heating reaction 2h at 65 DEG C, it refilters, wash until neutral, baking
It is dry, bentonite is added in toluene, under nitrogen protection ultrasonic disperse 15min, polyethyleneimine then is added at 90 DEG C
Aqueous solution in, after ultrasonic disperse 10min, react 3h at 80 DEG C, filtering is washed with distilled water and absolute ethyl alcohol, at 60 DEG C
Lower vacuum drying 5h, you can obtain modified alta-mud.
The preparation method of the modification diamond particle of step b is：Diamond particle is placed in high temperature furnace, is added with 450 DEG C
Hot 2h, you can obtain modified diamond particle.
The preparation method of the epoxy resin pre-polymerization liquid of step b is：Epoxy resin toughened, toluene, ethers curing agent, height is resistance to
Mill carbon black, ultra-violet absorber, antioxidant and light stabilizer are mixed to join in reaction kettle, are stirred under the rotating speed of 100r/min
Temperature of reaction kettle is being risen to 80 DEG C, 25min is stirred under the rotating speed of 600r/min by 10min, when reaction kettle is down to room temperature,
Ethers catalyst is added, and 10min is stirred with the rotating speed of 80r/min, you can obtains epoxy resin pre-polymerization liquid.
The organic solvent of step c is tetrahydrofuran.
The aliphatic polyamine of step c is trientine.
The catalyst of step c is dimethylacetylamide.
Embodiment 3
A kind of preparation method of composite insulating material, including following preparation process：
A, basis material is imported into mixing 2h in mixer, temperature is 245 DEG C, and modified alta-mud is added later and is blended, stirring
15min obtains material one；
B, modified diamond particle, epoxy resin pre-polymerization liquid and high wear-resistant carbon black are mixed, are slowly stirred 25min under vacuum,
Deviate from the bubble in mixture, obtains material two；
C, material one is added in organic solvent, adds alumina particle, magnesium oxide particle, heated and stir at 90 DEG C
50min, re-ultrasonic dispersion 30min, are added material two, aliphatic polyamine and catalyst later, the heating water bath at 90 DEG C, simultaneously
Using mechanical agitation 50min, material three is obtained；
D, material three is placed in drying box, the dry 20min at 130 DEG C, then imported in molding machine, in high-temperature and high-pressure conditions
Lower compression moulding, obtains finished product.
The basis material of step a is bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin and line
The mixture of property phenol aldehyde type epoxy resin.
The method for preparing modified bentonite of step a is：Bentonite is added in distilled water, after ultrasonic disperse 50min,
The large particulate matter of filtering removal precipitation, then centrifuge, dry, grind, roast, baked bentonite is placed in a concentration of
Ultrasonic disperse 15min in the acetum of 10mol/L, then be placed at 75 DEG C heating reaction 2h, refilter, wash until neutrality,
Drying, bentonite is added in toluene, under nitrogen protection ultrasonic disperse 15min, polyethyleneimine then is added at 100 DEG C
In the aqueous solution of amine, after ultrasonic disperse 15min, 4h is reacted at 100 DEG C, filtering is washed, with distilled water and absolute ethyl alcohol 80
6h is dried in vacuo at DEG C, you can obtain modified alta-mud.
The preparation method of the modification diamond particle of step b is：Diamond particle is placed in high temperature furnace, is added with 480 DEG C
Hot 3h, you can obtain modified diamond particle.
The preparation method of the epoxy resin pre-polymerization liquid of step b is：Epoxy resin toughened, toluene, ethers curing agent, height is resistance to
Mill carbon black, ultra-violet absorber, antioxidant and light stabilizer are mixed to join in reaction kettle, are stirred under the rotating speed of 140r/min
Temperature of reaction kettle is being risen to 90 DEG C, 35min is stirred under the rotating speed of 800r/min by 15min, when reaction kettle is down to room temperature,
Ethers catalyst is added, and 20min is stirred with the rotating speed of 100r/min, you can obtains epoxy resin pre-polymerization liquid.
The organic solvent of step c is dichloromethane.
The aliphatic polyamine of step c is ethylenediamine.
The catalyst of step c is dimethylformamide.
Finished product prepared by above example is detected, following data is obtained：
Table one：
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength（MPa） | 45 | 48 | 46 |
| Heat-resisting quantity（℃） | 154 | 152 | 155 |
| Surface resistivity（Ω） | 1.5×105 | 1.3×105 | 1.5×105 |
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to the foregoing embodiments
Invention is explained in detail, for those skilled in the art, still can be to foregoing embodiments institute
The technical solution of record is modified or equivalent replacement of some of the technical features.It is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of preparation method of composite insulating material, which is characterized in that including following preparation process：
A, basis material being imported into mixing 1-2h in mixer, temperature is 220-245 DEG C, and modified alta-mud is added later and is blended,
15-25min is stirred, material one is obtained；
B, modified diamond particle, epoxy resin pre-polymerization liquid and high wear-resistant carbon black are mixed, is slowly stirred 20- under vacuum
25min deviates from the bubble in mixture, obtains material two；
C, material one is added in organic solvent, adds alumina particle, magnesium oxide particle, heated simultaneously at 80-90 DEG C
40-50min, re-ultrasonic dispersion 20-30min are stirred, material two, aliphatic polyamine and catalyst are added later, at 90-120 DEG C
Lower heating water bath, while mechanical agitation 30-50min is used, obtain material three；
D, material three is placed in drying box, the dry 15-20min at 120-130 DEG C, then imported in molding machine, in high temperature
Compression moulding under condition of high voltage, obtains finished product.
2. a kind of preparation method of composite insulating material according to claim 1, which is characterized in that the base of the step a
Body material is bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin and novolac type epoxy resin
Mixture.
3. a kind of preparation method of composite insulating material according to claim 1, which is characterized in that the step a's changes
Property preparation method for bentonite is：Bentonite is added in distilled water, after ultrasonic disperse 30-50min, filtering removal precipitation
Large particulate matter, then centrifuge, dry, grind, roast, the acetic acid that baked bentonite is placed in a concentration of 8-10mol/L is molten
Ultrasonic disperse 10-15min in liquid, then it is placed in heating reaction 1-2h at 65-75 DEG C, it refilters, wash up to neutral, drying, it will
Bentonite is added in toluene, under nitrogen protection ultrasonic disperse 10-15min, and polyethyleneimine then is added at 90-100 DEG C
In the aqueous solution of amine, after ultrasonic disperse 10-15min, 3-4h is reacted at 80-100 DEG C, filtering, with distilled water and absolute ethyl alcohol
Washing is dried in vacuo 5-6h at 60-80 DEG C, you can obtains modified alta-mud.
4. a kind of preparation method of composite insulating material according to claim 1, which is characterized in that the step b's changes
The preparation method of property diamond particle is：Diamond particle is placed in high temperature furnace, with 450-480 DEG C of heating 2-3h, you can
To modified diamond particle.
5. a kind of preparation method of composite insulating material according to claim 1, which is characterized in that the ring of the step b
The preparation method of oxygen resin prepolymer liquid is：By epoxy resin toughened, toluene, ethers curing agent, high wear-resistant carbon black, ultraviolet radiation absorption
Agent, antioxidant and light stabilizer are mixed to join in reaction kettle, and 10-15min is stirred under the rotating speed of 100-140r/min, are being incited somebody to action
Temperature of reaction kettle rises to 80-90 DEG C, and 25-35min is stirred under the rotating speed of 600-800r/min, when reaction kettle is down to room temperature,
Ethers catalyst is added, and 10-20min is stirred with the rotating speed of 80-100r/min, you can obtains epoxy resin pre-polymerization liquid.
6. a kind of preparation method of composite insulating material according to claim 1, which is characterized in that the step c's has
Solvent is any one of dichloromethane, chloroform, carbon tetrachloride and tetrahydrofuran.
7. a kind of preparation method of composite insulating material according to claim 1, which is characterized in that the fat of the step c
Fat race polyamines is any one of ethylenediamine, propane diamine, diethyl triamine and trientine.
8. a kind of preparation method of composite insulating material according to claim 1, which is characterized in that the step c's urges
Agent is dimethylformamide or dimethylacetylamide.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112661507A (en) * | 2021-01-11 | 2021-04-16 | 湖南省美程陶瓷科技有限公司 | Alumina ceramic material for dual-function pressure sensor and preparation method thereof |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589115A (en) * | 2013-10-15 | 2014-02-19 | 昆山市奋发绝缘材料有限公司 | Insulating material for wind power generation and preparation method thereof |
| CN107603135A (en) * | 2016-05-12 | 2018-01-19 | 王尧尧 | A kind of preparation method of cable insulation composite |
| CN107629400A (en) * | 2016-05-12 | 2018-01-26 | 王尧尧 | A kind of cable insulation material preparation method for including nano magnesia/low density polyethylene (LDPE)/modified alta-mud |
| CN106046679A (en) * | 2016-05-30 | 2016-10-26 | 清华大学 | High-thermal-conductivity composite insulating material and preparation method thereof |
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