CN107163629A - It is a kind of for magnetic field shielding coating of distribution transformer and preparation method thereof - Google Patents
It is a kind of for magnetic field shielding coating of distribution transformer and preparation method thereof Download PDFInfo
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- CN107163629A CN107163629A CN201710420496.1A CN201710420496A CN107163629A CN 107163629 A CN107163629 A CN 107163629A CN 201710420496 A CN201710420496 A CN 201710420496A CN 107163629 A CN107163629 A CN 107163629A
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- distribution transformer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/38—Paints containing free metal not provided for above in groups C09D5/00 - C09D5/36
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a kind of magnetic field shielding coating for distribution transformer, include the raw material of following parts by weight, 10 ~ 20 parts of agent, 3 ~ 9 parts of titanate coupling agent, 2 ~ 8 parts of epoxy resin, 1 ~ 5 part of diisooctyl phthalate, 2 ~ 7 parts of adhesive, 200 ~ 280 parts of water are released in 30 ~ 48 parts of nano granular of zinc oxide, 10 ~ 40 parts of high conductivity simple metal, 2 ~ 16 parts of nonionic emulsifier, 20 ~ 30 parts of ferrimagnetic powder, 4 ~ 12 parts of polyaniline, mixing.The present invention provides a kind of magnetic field shielding coating for distribution transformer, ferrimagnetic powder and high conductivity simple metal are contained in coating, low frequency magnetic field can effectively be shielded by being applied on the shell of distribution transformer, it is to avoid the people around transformer are produced and endangered.
Description
Technical field
The invention belongs to field of electrical equipment, and in particular to a kind of magnetic field shielding coating and its system for distribution transformer
Preparation Method.
Background technology
Distribution transformer is industrial and mining enterprises and the visual plant in civil buildings electric power system, and it will be by 10（6）KV or
35kV network voltages are down to the 230/400V busbar voltages that user uses.Such product is applied to exchange 50（60）Hz, three-phase is most
Big rated capacity 2500kVA（Single-phase maximum rated capacity 833kVA, single-phase transformer is not recommended typically）, can be indoors
（Outside）Use, capacity 315kVA and it is following when can be arranged on bar on, environment temperature is not higher than 40 DEG C, is not less than -25 DEG C, most
High 30 DEG C of mean daily temperature, 20 DEG C of highest year-round average temperature, relative humidity is no more than 90%（25 DEG C of environment temperature）, height above sea level
No more than 1000m.
With the fast development of the technologies such as electronics, electric power, communication, electromagnetic radiation turns into a kind of new pollution sources, the world
Health organization is classified as electromagnetic radiation pollution the third-largest public hazards in the world.Electromagnetic radiation pollution can cause electromagnetic interference, electromagnetism ring
The a series of safety problem such as border pollution and electromagnetic information leakage.The past conventional most of radiation for being concentrated in electric field of research
Harm, but pass through substantial amounts of research at present, the harm of low frequency magnetic field is particularly important.On the one hand, the harm of low frequency magnetic field is particularly
Seriously.On the other hand, the magnetic interference that low frequency magnetic field is produced is to influence the key factor of electronic electric equipment normal work.Example
Such as, the low frequency magnetic field produced by engine can make the image and reading and communication equipment of neighbouring computer produce distortion.It is another
Aspect, low frequency magnetic field can make the central nervous system disorder of human body, cardiovascular system imbalance, and increase leukaemia, brain tumor, mammary gland
The incidence of disease of cancer.Therefore, low frequency magnetic field can seriously jeopardize national politics, military and social safety, and the radiation to low frequency magnetic field is adopted
Prevention is taken to seem very necessary with control measures.
Therefore, said from material angle, research and develop new low-frequency electromagnetic wave magnetic shielding material particularly necessary.Traditional is low
Using homogenous materials such as sheet metal, thin slice, strips more than frequency magnetic shielding material, such as conventional iron, silicon steel sheet, stainless steel, permalloy
Etc. making low frequency magnetic shielding material.Material is often machined into thin plate, thin slice or strip, and this can not only reduce the magnetic cup of material
Cover performance, and cause energy consumption increase, cost increases, cost performance is reduced, in-convenience in use.If be directed to outside distribution transformer
If coating on shell is improved, effect and low frequency magnetic shielding material are equivalent, can thus save very big cost.
The content of the invention
In view of the above-mentioned problems, the technical problem to be solved in the present invention is to provide a kind of magnetic field shielding for distribution transformer
Coating, reduces the pollution of the low frequency magnetic field of transformer.
To achieve the above object, the technical scheme is that：A kind of magnetic field shielding coating for distribution transformer, bag
The raw material of following parts by weight is included,
30 ~ 48 parts of nano granular of zinc oxide, 10 ~ 40 parts of high conductivity simple metal, 2 ~ 16 parts of nonionic emulsifier, ferrimagnetic powder
20 ~ 30 parts, 4 ~ 12 parts of polyaniline, mixing release 10 ~ 20 parts of agent, 3 ~ 9 parts of titanate coupling agent, 2 ~ 8 parts of epoxy resin, O-phthalic
Sour 1 ~ 5 part of two isodecyl ester, 2 ~ 7 parts of adhesive, 200 ~ 280 parts of water.
Preferably, the raw material of following parts by weight is included, it is 30 parts of nano granular of zinc oxide, 10 parts of high conductivity simple metal, non-
10 parts of agent, 3 parts of titanate coupling agent, epoxy resin 2 are released in 2 parts of ionic emulsifying agent, 20 parts of ferrimagnetic powder, 4 parts of polyaniline, mixing
Part, 1 part of diisooctyl phthalate, 2 parts of adhesive, 200 parts of water.
Preferably, the high conductivity simple metal is copper, silver or aluminium, and high conductivity simple metal is powdery.
Preferably, the nano granular of zinc oxide is the nano granular of zinc oxide of 200 ~ 300 mesh fineness.
Preferably, the preparation method of the nano granular of zinc oxide is for raw material, in organic Jie with metal alkoxide Zn (OR) 2
It is hydrolyzed and polycondensation reaction in matter, solution is obtained gel through solation, then gel passed through 60 ~ 80 DEG C of hothouse
Middle 2 ~ 3h of drying, is sintered into powder and produces nano granular of zinc oxide.
Preferably, the organic media is a kind of or many in peat tongue, coir, styrene and expoxy propane
Kind.
Preferably, described adhesive in polyimides glue, modified phenolic glue, SGA and epoxy resin one
Plant or their mixture.
A kind of preparation method of magnetic field shielding coating for distribution transformer, comprises the following steps：
Step 1：Nano granular of zinc oxide, high conductivity simple metal are added into nonionic emulsifier after infiltration wetting first
Middle mixing；
Step 2：Nano granular of zinc oxide, high conductivity simple metal and the nonionic emulsifier that will be permeated after wetting, which are added, to be disperseed
It is sufficiently stirred in machine, after 2 ~ 10min of stirring, sequentially adds ferrimagnetic powder, polyaniline, mixing and release agent, titanate coupling agent and stir
More than 10min is mixed, while keeping the temperature in dispersion machine to be 30 ~ 60 DEG C；
Step 3：Epoxy resin, diisooctyl phthalate, adhesive and suitable quantity of water are added in dispersion machine together and mixed
Stir, cross 100 ~ 200 mesh sieves and go the removal of impurity, obtain the magnetic field shielding coating of finished product.
Preferably, the rotating speed of the dispersant stirring is 100 ~ 150r/min.
The beneficial effects of the present invention are：The present invention provides a kind of magnetic field shielding coating for distribution transformer, coating
In contain ferrimagnetic powder and high conductivity simple metal, low-frequency magnetic can effectively be shielded by being applied on the shell of distribution transformer
, it is to avoid harm is produced to the people around transformer.The coating adds adhesive, improves the bond properties of coating, this hair
It is bright prepare nano zine oxide method production product granularity it is small, purity is high, reaction temperature is low, process is easy to control, distribution of particles
Uniformly, reunite less, dielectric properties it is preferable.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, following examples, to present invention progress
It is further to describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, this is not limited
Invention.
Embodiment 1
A kind of magnetic field shielding coating for distribution transformer, includes the raw material of following parts by weight,
30 parts of nano granular of zinc oxide, 10 parts of high conductivity simple metal, 2 parts of nonionic emulsifier, 20 parts of ferrimagnetic powder, polyphenyl
10 parts of agent, 3 parts of titanate coupling agent, 2 parts of epoxy resin, 1 part of diisooctyl phthalate, adhesive 2 are released in 4 parts of amine, mixing
Part, 200 parts of water.
The high conductivity simple metal is copper, silver or aluminium, and high conductivity simple metal is powdery.
The nano granular of zinc oxide is the nano granular of zinc oxide of 200 mesh fineness.
The preparation method of the nano granular of zinc oxide be with metal alkoxide Zn (OR) 2 be raw material, it is right in organic media
It is hydrolyzed and polycondensation reaction, solution is obtained gel through solation, then gel by drying 2h in 60 DEG C of hothouse,
It is sintered into powder and produces nano granular of zinc oxide.
The organic media is the one or more in peat tongue, coir, styrene and expoxy propane.
One kind in polyimides glue, modified phenolic glue, SGA and epoxy resin of described adhesive or
Their mixture.
A kind of preparation method of magnetic field shielding coating for distribution transformer, comprises the following steps：
Step 1：Nano granular of zinc oxide, high conductivity simple metal are added into nonionic emulsifier after infiltration wetting first
Middle mixing；
Step 2：Nano granular of zinc oxide, high conductivity simple metal and the nonionic emulsifier that will be permeated after wetting, which are added, to be disperseed
It is sufficiently stirred in machine, after stirring 2min, sequentially adds ferrimagnetic powder, polyaniline, mixing and release agent, titanate coupling agent stirring
More than 10min, while keeping the temperature in dispersion machine to be 30 DEG C；
Step 3：Epoxy resin, diisooctyl phthalate, adhesive and suitable quantity of water are added in dispersion machine together and mixed
Stir, cross 100 mesh sieves and go the removal of impurity, obtain the magnetic field shielding coating of finished product.
The rotating speed of the dispersant stirring is 100r/min.
Embodiment 2
A kind of magnetic field shielding coating for distribution transformer, includes the raw material of following parts by weight,
It is 40 parts of nano granular of zinc oxide, 30 parts of high conductivity simple metal, 10 parts of nonionic emulsifier, 25 parts of ferrimagnetic powder, poly-
15 parts of agent, 6 parts of titanate coupling agent, 6 parts of epoxy resin, 3 parts of diisooctyl phthalate, adhesive are released in 8 parts of aniline, mixing
5 parts, 240 parts of water.
The high conductivity simple metal is copper, silver or aluminium, and high conductivity simple metal is powdery.
The nano granular of zinc oxide is the nano granular of zinc oxide of 250 mesh fineness.
The preparation method of the nano granular of zinc oxide be with metal alkoxide Zn (OR) 2 be raw material, it is right in organic media
It is hydrolyzed and polycondensation reaction, solution is obtained gel through solation, then gel by drying 2h in 70 DEG C of hothouse,
It is sintered into powder and produces nano granular of zinc oxide.
The organic media is the one or more in peat tongue, coir, styrene and expoxy propane.
One kind in polyimides glue, modified phenolic glue, SGA and epoxy resin of described adhesive or
Their mixture.
A kind of preparation method of magnetic field shielding coating for distribution transformer, comprises the following steps：
Step 1：Nano granular of zinc oxide, high conductivity simple metal are added into nonionic emulsifier after infiltration wetting first
Middle mixing；
Step 2：Nano granular of zinc oxide, high conductivity simple metal and the nonionic emulsifier that will be permeated after wetting, which are added, to be disperseed
It is sufficiently stirred in machine, after stirring 8min, sequentially adds ferrimagnetic powder, polyaniline, mixing and release agent, titanate coupling agent stirring
More than 10min, while keeping the temperature in dispersion machine to be 50 DEG C；
Step 3：Epoxy resin, diisooctyl phthalate, adhesive and suitable quantity of water are added in dispersion machine together and mixed
Stir, cross 150 mesh sieves and go the removal of impurity, obtain the magnetic field shielding coating of finished product.
The rotating speed of the dispersant stirring is 120r/min.
Embodiment 3
A kind of magnetic field shielding coating for distribution transformer, includes the raw material of following parts by weight,
It is 48 parts of nano granular of zinc oxide, 40 parts of high conductivity simple metal, 16 parts of nonionic emulsifier, 30 parts of ferrimagnetic powder, poly-
12 parts of aniline, mixing release 20 parts of agent, 9 parts of titanate coupling agent, 8 parts of epoxy resin, 5 parts of diisooctyl phthalate, bonding
7 parts of agent, 280 parts of water.
The high conductivity simple metal is copper, silver or aluminium, and high conductivity simple metal is powdery.
The nano granular of zinc oxide is the nano granular of zinc oxide of 300 mesh fineness.
The preparation method of the nano granular of zinc oxide be with metal alkoxide Zn (OR) 2 be raw material, it is right in organic media
It is hydrolyzed and polycondensation reaction, solution is obtained gel through solation, then gel by drying 3h in 80 DEG C of hothouse,
It is sintered into powder and produces nano granular of zinc oxide.
The organic media is the one or more in peat tongue, coir, styrene and expoxy propane.
One kind in polyimides glue, modified phenolic glue, SGA and epoxy resin of described adhesive or
Their mixture.
A kind of preparation method of magnetic field shielding coating for distribution transformer, comprises the following steps：
Step 1：Nano granular of zinc oxide, high conductivity simple metal are added into nonionic emulsifier after infiltration wetting first
Middle mixing；
Step 2：Nano granular of zinc oxide, high conductivity simple metal and the nonionic emulsifier that will be permeated after wetting, which are added, to be disperseed
It is sufficiently stirred in machine, after stirring 10min, sequentially adds ferrimagnetic powder, polyaniline, mixing and release agent, titanate coupling agent stirring
More than 10min, while keeping the temperature in dispersion machine to be 60 DEG C；
Step 3：Epoxy resin, diisooctyl phthalate, adhesive and suitable quantity of water are added in dispersion machine together and mixed
Stir, cross 200 mesh sieves and go the removal of impurity, obtain the magnetic field shielding coating of finished product.
The rotating speed of the dispersant stirring is 150r/min.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of magnetic field shielding coating for distribution transformer, it is characterised in that include the raw material of following parts by weight,
30 ~ 48 parts of nano granular of zinc oxide, 10 ~ 40 parts of high conductivity simple metal, 2 ~ 16 parts of nonionic emulsifier, ferrimagnetic powder
20 ~ 30 parts, 4 ~ 12 parts of polyaniline, mixing release 10 ~ 20 parts of agent, 3 ~ 9 parts of titanate coupling agent, 2 ~ 8 parts of epoxy resin, O-phthalic
Sour 1 ~ 5 part of two isodecyl ester, 2 ~ 7 parts of adhesive, 200 ~ 280 parts of water.
2. a kind of magnetic field shielding coating for distribution transformer according to claim 1, it is characterised in that including as follows
The raw material of parts by weight, 30 parts of nano granular of zinc oxide, 10 parts of high conductivity simple metal, 2 parts of nonionic emulsifier, ferrimagnetic powder
20 parts, 4 parts of polyaniline, mixing release 10 parts of agent, 3 parts of titanate coupling agent, 2 parts of epoxy resin, diisooctyl phthalate 1
Part, 2 parts of adhesive, 200 parts of water.
3. a kind of magnetic field shielding coating for distribution transformer according to claim 1, it is characterised in that the high electricity
Conductance simple metal is copper, silver or aluminium, and high conductivity simple metal is powdery.
4. a kind of magnetic field shielding coating for distribution transformer according to claim 1, it is characterised in that the nanometer
Zinc oxide particles are the nano granular of zinc oxide of 200 ~ 300 mesh fineness.
5. a kind of magnetic field shielding coating for distribution transformer according to claim 1, it is characterised in that the nanometer
The preparation method of Zinc oxide particles is, for raw material, it to be hydrolyzed and polycondensation in organic media with metal alkoxide Zn (OR) 2
Reaction, makes solution obtain gel through solation, then gel is sintered into powder by drying 2 ~ 3h in 60 ~ 80 DEG C of hothouse
Produce nano granular of zinc oxide.
6. a kind of magnetic field shielding coating for distribution transformer according to claim 5, it is characterised in that described organic
Medium is the one or more in peat tongue, coir, styrene and expoxy propane.
7. a kind of magnetic field shielding coating for distribution transformer according to claim 1, it is characterised in that the bonding
A kind of or their mixture of the agent in polyimides glue, modified phenolic glue, SGA and epoxy resin.
8. the preparation method of a kind of magnetic field shielding coating for distribution transformer, it is characterised in that comprise the following steps：
Step 1：Nano granular of zinc oxide, high conductivity simple metal are added into nonionic emulsifier after infiltration wetting first
Middle mixing；
Step 2：Nano granular of zinc oxide, high conductivity simple metal and the nonionic emulsifier that will be permeated after wetting, which are added, to be disperseed
It is sufficiently stirred in machine, after 2 ~ 10min of stirring, sequentially adds ferrimagnetic powder, polyaniline, mixing and release agent, titanate coupling agent and stir
More than 10min is mixed, while keeping the temperature in dispersion machine to be 30 ~ 60 DEG C；
Step 3：Epoxy resin, diisooctyl phthalate, adhesive and suitable quantity of water are added in dispersion machine together and mixed
Stir, cross 100 ~ 200 mesh sieves and go the removal of impurity, obtain the magnetic field shielding coating of finished product.
9. a kind of preparation method of magnetic field shielding coating for distribution transformer according to claim 8, its feature exists
In the rotating speed of the dispersant stirring is 100 ~ 150r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710420496.1A CN107163629A (en) | 2017-06-07 | 2017-06-07 | It is a kind of for magnetic field shielding coating of distribution transformer and preparation method thereof |
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| CN201710420496.1A CN107163629A (en) | 2017-06-07 | 2017-06-07 | It is a kind of for magnetic field shielding coating of distribution transformer and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111378344A (en) * | 2018-12-28 | 2020-07-07 | 内蒙古元瓷新材料科技有限公司 | Coating capable of absorbing power frequency electromagnetic field and preparation method thereof |
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Application publication date: 20170915 |