CN104312377B - High temperature-resistant insulating transformer and processing method thereof - Google Patents

High temperature-resistant insulating transformer and processing method thereof Download PDF

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Publication number
CN104312377B
CN104312377B CN201410498470.5A CN201410498470A CN104312377B CN 104312377 B CN104312377 B CN 104312377B CN 201410498470 A CN201410498470 A CN 201410498470A CN 104312377 B CN104312377 B CN 104312377B
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temperature
weight portion
resistant insulating
epoxy resin
transformator
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CN104312377A (en
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姚强
吴子敏
何斌
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Anhui Lan Xiang Electrical Complete Set Of Equipment Co Ltd
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Anhui Lan Xiang Electrical Complete Set Of Equipment Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/66Additives characterised by particle size
    • C09D7/67Particle size smaller than 100 nm
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/66Additives characterised by particle size
    • C09D7/69Particle size larger than 1000 nm
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
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  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention discloses a high temperature-resistant insulating transformer and a processing method thereof. Inner and outer walls of the high temperature-resistant insulating transformer are coated with a high temperature-resistant insulating paint composition. The high temperature-resistant insulating paint composition comprises epoxy resin, phenolic resin, polyimide resin, zinc borate, trimethylol propane, benzoyl peroxide, potassium tripolyphosphate, nanometer titanium dioxide, a filler and a fire retardant. Based on the epoxy resin, the composition comprises, by weight, 15-20 parts of phenolic resin, 6-9 parts of polyimide resin, 5-10 parts of zinc borate, 50-70 parts of trimethylol propane, 12-20 parts of benzoyl peroxide, 2-9 parts of potassium tripolyphosphate, 0.5-1.5 parts of nanometer titanium dioxide, 7-12 parts of a filler and 5-10 parts of a fire retardant. The high temperature-resistant insulating transformer has excellent disruptive strength, volume resistivity and high temperature resistance.

Description

High-temperature insulation transformator and processing method thereof
Technical field
The present invention relates to transformator, in particular it relates to a kind of high-temperature insulation transformator and processing method thereof.
Background technology
At present, the surface of power equipment need to coat one layer of insulant, as coatings, insullac etc. set to improve electric power Standby exterior insulation, this not only increases the safety of power system, also improves system reliability of operation, certain journey The thrifty cost of power equipment on degree.
But the insulant complex manufacturing technology on existing high-temperature insulation transformator causes production cost high, the most resistance to High temperature resistant and the insulation effect of high-temperature insulation transformator is the most inconspicuous.
Summary of the invention
It is an object of the invention to provide a kind of high-temperature insulation transformator and processing method thereof, prepared by this processing method High-temperature insulation transformator there is high temperature resistant and excellent insulation effect, this process steps is simple simultaneously, and raw material is easy to get.
To achieve these goals, the invention provides a kind of high-temperature-resistant insulating paint transformator, described transformator interior Scribble high-temperature-resistant insulating paint compositions on outer wall, described compositions comprise epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trimethylolpropane, benzoyl peroxide, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant;
Wherein, relative to the epoxy resin of 100 weight portions, the content of described phenolic resin is 15-20 weight portion, described poly- The content of imide resin is 6-9 weight portion, and the content of described Firebrake ZB is 5-10 weight portion, containing of described trimethylolpropane Amount is 50-70 weight portion, and the content of described benzoyl peroxide is 12-20 weight portion, and the content of described PTPP (potassium tripolyphosphate) is 2-9 Weight portion, the content of described nano titanium oxide is 0.5-1.5 weight portion, and the content of described filler is 7-12 weight portion, described The content of fire retardant is 5-10 weight portion.
The processing method that present invention also offers a kind of high-temperature insulation transformator, described processing method includes:
A, by epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trimethylolpropane, benzoyl peroxide, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant heating are mixed and made into high-temperature-resistant insulating paint compositions;
B, by described high-temperature-resistant insulating paint compositions brushing on the inside and outside wall of transformer tank;
Wherein, relative to the epoxy resin of 100 weight portions, the consumption of described phenolic resin is 15-20 weight portion, described poly- The consumption of imide resin is 6-9 weight portion, and the consumption of described Firebrake ZB is 5-10 weight portion, the use of described trimethylolpropane Amount is 50-70 weight portion, and the consumption of described benzoyl peroxide is 12-20 weight portion, and the consumption of described PTPP (potassium tripolyphosphate) is 2-9 Weight portion, the consumption of described nano titanium oxide is 0.5-1.5 weight portion, and the consumption of described filler is 7-12 weight portion, described The consumption of fire retardant is 5-10 weight portion.
By technique scheme, the present invention is by sub-to epoxy resin, phenolic resin and polyamides under conditions of heating In polyimide resin add Firebrake ZB, trimethylolpropane, benzoyl peroxide, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and Fire retardant prepares high-temperature-resistant insulating paint compositions, then by this high-temperature-resistant insulating paint compositions brushing inside and outside transformator Forming paint film on wall, the heat resisting temperature of this paint film is more than 500 DEG C, and breakdown strength exists at more than 160KV/m, specific insulation 1.5×104More than Ω m.This process steps is simple simultaneously, and raw material is easy to get, low cost.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The present invention is supplied to a kind of high-temperature-resistant insulating paint transformator, the inside and outside wall of described transformator scribbles high temperature resistant Composition of insulating coating, described compositions comprises epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trihydroxy methyl third Alkane, benzoyl peroxide, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant.Wherein, relative to 100 weight portions Epoxy resin, the content of described phenolic resin is 15-20 weight portion, and the content of described polyimide resin is 6-9 weight portion, institute The content stating Firebrake ZB is 5-10 weight portion, and the content of described trimethylolpropane is 50-70 weight portion, described benzoyl peroxide first The content of acyl is 12-20 weight portion, and the content of described PTPP (potassium tripolyphosphate) is 2-9 weight portion, the content of described nano titanium oxide For 0.5-1.5 weight portion, the content of described filler is 7-12 weight portion, and the content of described fire retardant is 5-10 weight portion.
In the present invention, the particle diameter of described nano titanium oxide can select in wide scope, can be this area institute Known to the titanium dioxide of any Nano grade, but from cost and the high temperature resistant and insulation of high-temperature-resistant insulating paint compositions Consider in effect, it is preferable that the particle diameter of described nano titanium oxide is 5-10nm.
In the present invention, the kind of described filler can select in wide scope, can be known in the art What a kind of inorganic filler, but consider from the high temperature resistant and insulation effect of cost and high-temperature-resistant insulating paint compositions, it is preferable that One or more in mica powder, Pulvis Talci, flake asbestos and Kaolin of described filler.
In the present invention, the particle diameter of described filler can select in wide scope, but is coated with from cost and high-temperature insulation Consider in the high temperature resistant and insulation effect of feed composition, it is preferable that the particle diameter of described filler is 0.05-0.15mm.
In the present invention, the kind of described fire retardant can select in wide scope, can be known in the art Any inorganic filler, but consider from the high temperature resistant and insulation effect of cost and high-temperature-resistant insulating paint compositions, preferably Ground, one or more in zirconium oxide, antimony oxide and Borax of described fire retardant.
In the present invention, the kind of described epoxy resin can select in wide scope, can be known in the art Any epoxy resin, but from the high temperature resistant and insulation effect of cost and high-temperature-resistant insulating paint compositions consider, excellent Selection of land, described epoxy resin is bisphenol A type epoxy resin and/or bisphenol f type epoxy resin.
The processing method that present invention also offers a kind of high-temperature insulation transformator, described processing method includes:
A, by epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trimethylolpropane, benzoyl peroxide, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant heating are mixed and made into high-temperature-resistant insulating paint compositions;
B, by described high-temperature-resistant insulating paint compositions brushing on the inside and outside wall of transformer tank;
Wherein, relative to the epoxy resin of 100 weight portions, the consumption of described phenolic resin is 15-20 weight portion, described poly- The consumption of imide resin is 6-9 weight portion, and the consumption of described Firebrake ZB is 5-10 weight portion, the use of described trimethylolpropane Amount is 50-70 weight portion, and the consumption of described benzoyl peroxide is 12-20 weight portion, and the consumption of described PTPP (potassium tripolyphosphate) is 2-9 Weight portion, the consumption of described nano titanium oxide is 0.5-1.5 weight portion, and the consumption of described filler is 7-12 weight portion, described The consumption of fire retardant is 5-10 weight portion.
In the processing method that the present invention provides, the particle diameter of described nano titanium oxide can select in wide scope, Can be the titanium dioxide of any Nano grade known in the art, but from cost and high-temperature-resistant insulating paint compositions High temperature resistant and insulation effect on consider, it is preferable that the particle diameter of described nano titanium oxide is 5-10nm.
In the processing method that the present invention provides, the kind of described filler can select in wide scope, can be this Any inorganic filler known to field, but from cost and the high temperature resistant and insulation effect of high-temperature-resistant insulating paint compositions Upper consideration, it is preferable that one or more in mica powder, Pulvis Talci, flake asbestos and Kaolin of described filler.
In the processing method that the present invention provides, the particle diameter of described filler can select in wide scope, but from cost Consider with on the high temperature resistant of high-temperature-resistant insulating paint compositions and insulation effect, it is preferable that the particle diameter of described filler is 0.05- 0.15mm。
In the processing method that the present invention provides, the kind of described fire retardant can select in wide scope, Ke Yishi Any inorganic filler known in the art, but from cost and the high temperature resistant and insulation effect of high-temperature-resistant insulating paint compositions Consider on fruit, it is preferable that one or more in zirconium oxide, antimony oxide and Borax of described fire retardant.
In the processing method that the present invention provides, the kind of described epoxy resin can select in wide scope, permissible It is any epoxy resin known in the art, but from cost and the high temperature resistant and insulation of high-temperature-resistant insulating paint compositions Consider in effect, it is preferable that described epoxy resin is bisphenol A type epoxy resin and/or bisphenol f type epoxy resin.
In the processing method that the present invention provides, described in add the temperature of hot mixing and incorporation time can be in wide scope Select, but consider from cost and production efficiency, it is preferable that described in add the temperature of hot mixing and be 180-220 DEG C, incorporation time is 2-3h。
Hereinafter will be described the present invention by embodiment.In following example, heat resisting temperature parameter, Ji Chuanqiang Degree parameter and specific insulation parameter are all recorded by the method for GB1981-81.
Bisphenol A type epoxy resin is the product of Guangzhou Yuan Chuan Chemical Co., Ltd., and bisphenol f type epoxy resin is Guangzhou dimension The product of Li Na Chemical Co., Ltd., phenolic resin are the product of Shanghai Wei Pu Chemical Engineering Technology Services Co., Ltd, polyimides Resin is the product of Suzhou Dao Chou engineering plastic company limited, and Firebrake ZB is the product of Hefei Wan Ran new material Science and Technology Ltd. Product, trimethylolpropane is the product of Guangzhou Xin Putai Chemical Co., Ltd., and benzoyl peroxide is the bright China in Hengshui rubber and plastic science and technology The product of company limited, PTPP (potassium tripolyphosphate) is the product of Changzhou river phosphorous chemical industry company limited, and nano titanium oxide is Shanghai titanium The product of face Industrial Co., Ltd..
Embodiment 1
At 200 DEG C, by 100kg bisphenol A type epoxy resin, phenolic resin 18kg, polyimide resin 8kg, Firebrake ZB 7kg, trimethylolpropane 60kg, benzoyl peroxide 16kg, PTPP (potassium tripolyphosphate) 5kg, nano titanium oxide 1kg, mica powder 10kg and zirconium oxide 8kg mixing 2.5h, then cooling prepares high-temperature-resistant insulating paint compositions A1.Wherein, sodium rice titanium dioxide Particle diameter be 8nm, the particle diameter of mica powder is 0.1mm.
At 25 DEG C, this high-temperature-resistant insulating paint compositions brushing is formed paint film, this paint on the inside and outside wall of transformator The high temperature resistant parameter of film, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Embodiment 2
At 180 DEG C, by 100kg bisphenol A type epoxy resin, phenolic resin 15kg, polyimide resin 6kg, Firebrake ZB 5kg, trimethylolpropane 50kg, benzoyl peroxide 12kg, PTPP (potassium tripolyphosphate) 2kg, nano titanium oxide 0.5kg, mica powder 7kg and zirconium oxide 5kg mixing 2h, then cooling prepares high-temperature-resistant insulating paint compositions A2.Wherein, the grain of sodium rice titanium dioxide Footpath is 5nm, and the particle diameter of mica powder is 0.05mm.
At 20 DEG C, this high-temperature-resistant insulating paint compositions brushing is formed paint film, this paint on the inside and outside wall of transformator The high temperature resistant parameter of film, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Embodiment 3
At 220 DEG C, by 100kg bisphenol A type epoxy resin, phenolic resin 20kg, polyimide resin 9kg, Firebrake ZB 10kg, trimethylolpropane 70kg, benzoyl peroxide 20kg, PTPP (potassium tripolyphosphate) 9kg, nano titanium oxide 1.5kg, mica powder 12kg and zirconium oxide 10kg mixing 3h, then cooling prepares high-temperature-resistant insulating paint compositions A3.Wherein, sodium rice titanium dioxide Particle diameter is 10nm, and the particle diameter of mica powder is 0.15mm.
At 30 DEG C, this high-temperature-resistant insulating paint compositions brushing is formed paint film, this paint on the inside and outside wall of transformator The high temperature resistant parameter of film, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Embodiment 4
Carry out according to the method for embodiment 1, except that, bisphenol A type epoxy resin is changed to bisphenol f type epoxy resin, Zirconium oxide is changed to antimony oxide, prepares high-temperature-resistant insulating paint compositions A4.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Embodiment 5
Carry out according to the method for embodiment 1, except that, bisphenol A type epoxy resin is changed to bisphenol f type epoxy resin, Mica powder is changed to Pulvis Talci, prepares high-temperature-resistant insulating paint compositions A5.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 1
Carry out according to the method for embodiment 1, except that, bisphenol A type epoxy resin is 5kg, prepares high-temperature insulation Coating composition B1.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 2
Carry out according to the method for embodiment 1, except that, bisphenol A type epoxy resin is 25kg, prepares high-temperature insulation Coating composition B2.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 3
Carry out according to the method for embodiment 1, except that, polyimide resin is 4kg, prepares high-temperature-resistant insulating paint Compositions B3.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 4
Carry out according to the method for embodiment 1, except that, polyimide resin is 12kg, prepares high-temperature insulation and is coated with Feed composition B4.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 5
Carry out according to the method for embodiment 1, except that, do not contain nano titanium oxide, prepare high-temperature insulation and be coated with Feed composition B5.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 6
Carry out according to the method for embodiment 1, except that, nano titanium oxide is 3kg, prepares high-temperature-resistant insulating paint Compositions B6.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 7
Carry out according to the method for embodiment 1, except that, benzoyl peroxide is 5kg, prepares high-temperature-resistant insulating paint Compositions B7.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 8
Carry out according to the method for embodiment 1, except that, benzoyl peroxide is 25kg, prepares high-temperature insulation and is coated with Feed composition B8.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 9
Carry out according to the method for embodiment 1, except that, trimethylolpropane is 30kg, prepares high-temperature insulation and is coated with Feed composition B9.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 10
Carry out according to the method for embodiment 1, except that, trimethylolpropane is 80kg, prepares high-temperature insulation and is coated with Feed composition B10.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 11
Carry out according to the method for embodiment 1, except that, PTPP (potassium tripolyphosphate) is 1kg, and Firebrake ZB is 15kg, prepares resistance to High-temperature insulating paint compositions B11.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Comparative example 12
Carry out according to the method for embodiment 1, except that, PTPP (potassium tripolyphosphate) is 12kg, and Firebrake ZB is 4kg, prepares resistance to High-temperature insulating paint combination B 12.
This high-temperature-resistant insulating paint compositions brushing is formed paint film on the inside and outside wall of transformator, this paint film high temperature resistant Parameter, breakdown strength parameter and specific insulation parameter are shown in Table 1.
Table 1
High temperature resistant (500 DEG C) Breakdown strength (KV/m) Specific insulation (104Ω m)
A1 Paint film is normal 175 1.81
A2 Paint film is normal 170 1.70
A3 Paint film is normal 168 1.65
A4 Paint film is normal 164 1.68
A5 Paint film is normal 172 1.75
B1 Coming off occurs in paint film 130 1.35
B2 Coming off occurs in paint film 140 1.27
B3 Coming off occurs in paint film 130 1.28
B4 Coming off occurs in paint film 135 1.19
B5 Coming off occurs in paint film 128 1.22
B6 Coming off occurs in paint film 127 1.24
B7 Coming off occurs in paint film 119 1.28
B8 Coming off occurs in paint film 124 1.34
B9 Coming off occurs in paint film 108 1.32
B10 Coming off occurs in paint film 117 1.25
B11 Coming off occurs in paint film 113 1.21
B12 Coming off occurs in paint film 126 1.19
By above-described embodiment and comparative example, the high-temperature insulation transformator that the present invention provides has the resistance to height of excellence Temperature, breakdown strength and specific insulation, the method step simultaneously processing this transformator is simple, and raw material is easy to get.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment Detail, in the technology concept of the present invention, technical scheme can be carried out multiple simple variant, this A little simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this The thought of invention, it should be considered as content disclosed in this invention equally.

Claims (14)

1. a high-temperature-resistant insulating paint transformator, it is characterised in that scribble high-temperature insulation on the inside and outside wall of described transformator Coating composition, described compositions is by epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trimethylolpropane, mistake BP, PTPP (potassium tripolyphosphate), nano titanium oxide, filler and fire retardant composition;
Wherein, relative to the epoxy resin of 100 weight portions, the content of described phenolic resin is 15-20 weight portion, and described polyamides is sub- The content of polyimide resin is 6-9 weight portion, and the content of described Firebrake ZB is 5-10 weight portion, and the content of described trimethylolpropane is 50-70 weight portion, the content of described benzoyl peroxide is 12-20 weight portion, and the content of described PTPP (potassium tripolyphosphate) is 2-9 weight Part, the content of described nano titanium oxide is 0.5-1.5 weight portion, and the content of described filler is 7-12 weight portion, described fire-retardant The content of agent is 5-10 weight portion.
High-temperature-resistant insulating paint transformator the most according to claim 1, wherein, the particle diameter of described nano titanium oxide is 5- 10nm。
High-temperature-resistant insulating paint transformator the most according to claim 1 and 2, wherein, described filler is selected from mica powder, Talcum One or more in powder, flake asbestos and Kaolin.
High-temperature-resistant insulating paint transformator the most according to claim 1 and 2, wherein, described epoxy resin is bisphenol A-type ring Epoxy resins and/or bisphenol f type epoxy resin.
High-temperature-resistant insulating paint transformator the most according to claim 1 and 2, wherein, the particle diameter of described filler is 0.05- 0.15mm。
High-temperature-resistant insulating paint transformator the most according to claim 1 and 2, wherein, described fire retardant selected from zirconium oxide, three Aoxidize one or more in two antimony and Borax.
7. the processing method of a high-temperature insulation transformator, it is characterised in that described processing method includes:
A, by epoxy resin, phenolic resin, polyimide resin, Firebrake ZB, trimethylolpropane, benzoyl peroxide, trimerization Potassium phosphate, nano titanium oxide, filler and fire retardant heating are mixed and made into high-temperature-resistant insulating paint compositions;
B, by described high-temperature-resistant insulating paint compositions brushing on the inside and outside wall of transformer tank;
Wherein, relative to the epoxy resin of 100 weight portions, the consumption of described phenolic resin is 15-20 weight portion, and described polyamides is sub- The consumption of polyimide resin is 6-9 weight portion, and the consumption of described Firebrake ZB is 5-10 weight portion, and the consumption of described trimethylolpropane is 50-70 weight portion, the consumption of described benzoyl peroxide is 12-20 weight portion, and the consumption of described PTPP (potassium tripolyphosphate) is 2-9 weight Part, the consumption of described nano titanium oxide is 0.5-1.5 weight portion, and the consumption of described filler is 7-12 weight portion, described fire-retardant The consumption of agent is 5-10 weight portion.
Processing method the most according to claim 7, wherein, the particle diameter of described nano titanium oxide is 5-10nm.
Processing method the most according to claim 7, wherein, described filler is selected from mica powder, Pulvis Talci, flake asbestos and kaolinite One or more in soil.
Processing method the most according to claim 7, wherein, the particle diameter of described filler is 0.05-0.15mm.
11. processing methods according to claim 7, wherein, described fire retardant is selected from zirconium oxide, antimony oxide and Borax In one or more.
12. processing methods according to claim 7, wherein, described epoxy resin is bisphenol A type epoxy resin and/or double Phenol F type epoxy resin.
13. according to the processing method described in any one in claim 7-12, wherein, described in add the temperature of hot mixing and be 180-220 DEG C, incorporation time is 2-3h.
14. according to the processing method described in any one in claim 7-12, and wherein, in step b, brushing temperature is 20-30 ℃。
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CN105374537B (en) * 2015-11-26 2017-10-03 芜湖金牛电气股份有限公司 Transformer case and preparation method thereof
CN106116518B (en) * 2016-07-01 2018-12-18 江西高强电瓷集团有限公司 The above high-performance toughening porcelain insulator of 420KN grade and its manufacturing method
CN107068377B (en) * 2017-05-12 2018-07-17 江苏恒炫电气有限公司 A kind of transformer application process
CN110423555A (en) * 2019-08-10 2019-11-08 蚌埠市正园电子科技有限公司 A kind of explosion-proof transformer paint

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CN103694860A (en) * 2013-12-04 2014-04-02 铜陵三佳变压器有限责任公司 Acetal wire enamel meeting thermal level of 155 DEG C and more for transformer and preparation method of acetal wire enamel

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CN103694860A (en) * 2013-12-04 2014-04-02 铜陵三佳变压器有限责任公司 Acetal wire enamel meeting thermal level of 155 DEG C and more for transformer and preparation method of acetal wire enamel

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