CN117656620A - Fiber-containing mica organosilicon composition suitable for large offshore wind turbine generator - Google Patents
Fiber-containing mica organosilicon composition suitable for large offshore wind turbine generator Download PDFInfo
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- CN117656620A CN117656620A CN202311359195.4A CN202311359195A CN117656620A CN 117656620 A CN117656620 A CN 117656620A CN 202311359195 A CN202311359195 A CN 202311359195A CN 117656620 A CN117656620 A CN 117656620A
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- mica
- fiber
- mica paper
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- polyimide film
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- 239000010445 mica Substances 0.000 title claims abstract description 102
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 102
- 239000000835 fiber Substances 0.000 title claims abstract description 62
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- 229920001721 polyimide Polymers 0.000 claims abstract description 38
- 239000000853 adhesive Substances 0.000 claims abstract description 33
- 230000001070 adhesive effect Effects 0.000 claims abstract description 33
- 239000003999 initiator Substances 0.000 claims abstract description 26
- 239000000945 filler Substances 0.000 claims abstract description 15
- 239000012779 reinforcing material Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 30
- 229920002379 silicone rubber Polymers 0.000 claims description 25
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 23
- 229910052710 silicon Inorganic materials 0.000 claims description 23
- 239000010703 silicon Substances 0.000 claims description 23
- 229920005989 resin Polymers 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 21
- 239000004945 silicone rubber Substances 0.000 claims description 21
- 239000002904 solvent Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- 238000013329 compounding Methods 0.000 claims description 16
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 11
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 10
- 230000001804 emulsifying effect Effects 0.000 claims description 10
- 229910052627 muscovite Inorganic materials 0.000 claims description 10
- 238000004381 surface treatment Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 5
- 229910052582 BN Inorganic materials 0.000 claims description 5
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 5
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 5
- 229920006231 aramid fiber Polymers 0.000 claims description 5
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 5
- 238000012412 chemical coupling Methods 0.000 claims description 5
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 5
- 238000004945 emulsification Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims description 5
- 239000008096 xylene Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 239000011231 conductive filler Substances 0.000 claims 1
- 229920002050 silicone resin Polymers 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 6
- 239000012774 insulation material Substances 0.000 abstract description 4
- 239000002657 fibrous material Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 239000004760 aramid Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Organic Insulating Materials (AREA)
- Inorganic Insulating Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a fiber-containing mica organosilicon composition suitable for a large-scale offshore wind turbine, and relates to the field of insulation of stator coils of large-scale offshore wind turbines to the ground. The fiber-containing mica organosilicon composition suitable for the offshore large wind driven generator adopts a common polyimide film and a corona-resistant polyimide film which are biaxially stretched by 0.025mm or 0.03mm as reinforcing materials, and further comprises the following components in percentage: 70-80% of mica paper, 3-15% of adhesive, 0.3-1.5% of curing initiator and 8-19% of heat conducting filler. According to the invention, the fiber material is added into the mica paper, so that the structure among mica flakes is improved, a loose channel is formed, the purposes of improving the air permeability and the permeability of mica tapes are realized, the heat resistance level of the motor stator ground insulation material can be improved, the permeability of the motor stator ground insulation material is solved from the F level to the C level, and the weather resistance of the motor stator ground insulation is improved.
Description
Technical Field
The invention relates to the field of insulation of stator coils of large-scale offshore wind turbines to the ground, in particular to a fiber-containing mica organosilicon composition suitable for the large-scale offshore wind turbines.
Background
The existing wind driven generator stator coil is generally formed by wrapping epoxy glass low-rubber powder mica tape, then carrying out dipping F-level resin treatment through a vacuum pressure dipping process, wherein the epoxy glass low-rubber powder mica tape is formed by processing alkali-free glass cloth serving as a reinforcing material and powdery mica paper bonded by using epoxy resin serving as an adhesive to form a double-layer composite structure material, cutting the double-layer composite structure material into strips with certain width, rolling the strips into a disc, and continuously wrapping the strips onto a motor coil in a half-folding manner when the double-layer composite structure material is used to achieve the specified layer number and thickness.
The heat-resistant temperature of the system is 155 ℃, the operation temperature is low, the weather resistance is poor, the salt fog resistance (to marine environment) is poor, and the system is particularly not suitable for marine or offshore wind driven generators.
Accordingly, one skilled in the art would be able to provide a fiber-containing mica silicone composition suitable for use in large offshore wind turbines to address the problems set forth in the background above.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a fiber-containing mica organosilicon composition suitable for an offshore large wind driven generator, which is formed by impregnating F-level resin through a vacuum pressure impregnation process after the conventional wind driven generator stator coil is generally wrapped by epoxy glass and small rubber powder mica tape.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the organic silicon composition comprises a common polyimide film and a corona-resistant polyimide film which are biaxially stretched by 0.025mm or 0.03mm and are used as reinforcing materials, and the organic silicon composition further comprises the following components in percentage: 70-80% of mica paper, 3-15% of adhesive, 0.3-1.5% of curing initiator and 8-19% of heat conducting filler.
Further, the mica paper is a mica paper containing chopped fibers, and high-temperature calcined muscovite can be added into the mica paper, wherein the content of the calcined muscovite added into the mica paper is 0-70%.
Further, the chopped fiber can be one of aramid fiber and polysulfonamide fiber, and the content of the chopped fiber in the powdery mica paper is 1.5-6%.
Further, the adhesive adopts one of organic silicon resin and refined silicon rubber.
Further, the curing initiator is one or a mixture of more of benzoyl peroxide, tert-butyl benzoyl peroxide and methyl ethyl ketone peroxide.
Further, the heat conducting filler is one or a mixture of several of aluminum oxide, magnesium oxide, aluminum nitride, boron nitride and silicon carbide.
Further, the preparation method of the fiber-containing mica organosilicon composition suitable for the offshore large wind turbine generator comprises the following steps:
s1, preparation of adhesive
(1) When the organic silicon resin is used, a certain amount of organic silicon resin is weighed, toluene or xylene is added as a solvent, and a high-speed emulsifying machine is used for stirring for a certain time, so that the organic silicon resin is uniformly mixed;
(2) when the silicone rubber is used, the silicone rubber is cut into small pieces, the small pieces are put into a solvent for soaking for 24 hours, then the silicone rubber is scattered by stirring at a low speed by a stirrer, and then the silicone rubber solution is uniformly dissolved by stirring for a period of time by a high-speed emulsifying machine;
(3) adding a formula amount of heat conducting filler to carry out high-speed emulsification treatment, and then carrying out vacuum defoamation for standby;
s2, adding a curing initiator
Firstly, toluene or dimethylbenzene is used for stirring the curing initiator with the formula amount in a flask by a stirrer, so that the curing initiator is uniformly dissolved in a solvent, and then the solvent is added into the adhesive and is slowly stirred until uniform for later use;
s3, polyimide film production
Drying the polyimide film through two-sided chemical coupling treatment, and then producing the polyimide film on special mica tape coating and compounding equipment;
s4, adhesive coating
Uniformly coating a certain amount of adhesive on the surface of the polyimide film at a specified running speed, and then drying at a given temperature through an oven;
s5, compounding fiber-containing mica paper
Compounding fiber-containing mica paper on the polyimide glue-coated surface, heating and compacting;
s6, non-composite surface treatment of mica paper
Carrying out surface treatment on a non-composite surface of the mica paper containing the fiber powder, drying, then rolling, cutting and rolling on a tube core to form a disc shape;
s7, wrapping finished products
And finally wrapping the stator coil of the wind driven generator by a taping machine to serve as insulation to the ground.
Further, the preparation method comprises the following steps: unreeling part of reinforcing material, gluing part of reinforcing material, intermediate drying part, unreeling part of mica paper, gluing part of mica paper, drying part of mica paper and reeling part of mica material.
(III) beneficial effects
The invention provides a fiber-containing mica organosilicon composition suitable for a large-scale offshore wind driven generator. The beneficial effects are as follows:
1. the invention provides a fiber-containing mica organic silicon composition suitable for a large-scale offshore wind driven generator, which takes a polyimide film as a reinforcing material, uses a double-layer composite structure material processed by using organic silicon resin as adhesive mica paper, cuts the double-layer composite structure material into strips with a certain width, and winds the strips into a disc.
2. The invention provides a fiber-containing mica organosilicon composition suitable for a large-scale offshore wind turbine, which improves the structure among mica scales by adding fiber materials into mica paper to form a loose channel, thereby achieving the purpose of improving the air permeability and the permeability of mica tapes.
3. The invention provides a fiber-containing mica organosilicon composition suitable for a large-scale offshore wind driven generator, which can improve the heat resistance level of a motor stator ground insulation material, improve the F level to the C level, solve the permeability of the motor stator ground insulation material and improve the weather resistance of the motor stator ground insulation.
Drawings
FIG. 1 is a schematic illustration of the coating and compounding process of the fiber-containing mica silicone composition of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
as shown in fig. 1, the embodiment of the invention provides a fiber-containing mica organosilicon composition suitable for an offshore large wind turbine, wherein the organosilicon composition adopts a common polyimide film and a corona-resistant polyimide film which are biaxially stretched by 0.025mm or 0.03mm as reinforcing materials, and further comprises the following components in percentage content: 70% of mica paper, 15% of adhesive, 0.5% of curing initiator and 14.5% of heat conducting filler.
The mica paper is powdery mica paper containing chopped fibers, high-temperature calcined muscovite can be added into the mica paper, the content of the added calcined muscovite is 60%, the chopped fibers can be one of aramid fibers and polysulfonamide fibers, the content of the chopped fibers in the powdery mica paper is 4%, the adhesive adopts one of organic silicon resin and refined silicon rubber, the curing initiator is one or a mixture of more of benzoyl peroxide, tert-butyl benzoyl peroxide and methyl ethyl ketone peroxide, and the heat conducting filler is one or a mixture of more of aluminum oxide, magnesium oxide, aluminum nitride, boron nitride and silicon carbide.
The preparation method of the fiber-containing mica organosilicon composition suitable for the offshore large wind turbine generator comprises the following steps:
s1, preparation of adhesive
(1) When the organic silicon resin is used, a certain amount of organic silicon resin is weighed, toluene or xylene is added as a solvent, and a high-speed emulsifying machine is used for stirring for a certain time, so that the organic silicon resin is uniformly mixed;
(2) when the silicone rubber is used, the silicone rubber is cut into small pieces, the small pieces are put into a solvent for soaking for 24 hours, then the silicone rubber is scattered by stirring at a low speed by a stirrer, and then the silicone rubber solution is uniformly dissolved by stirring for a period of time by a high-speed emulsifying machine;
(3) adding a formula amount of heat conducting filler to carry out high-speed emulsification treatment, and then carrying out vacuum defoamation for standby;
s2, adding a curing initiator
Firstly, toluene or dimethylbenzene is used for stirring the curing initiator with the formula amount in a flask by a stirrer, so that the curing initiator is uniformly dissolved in a solvent, and then the solvent is added into the adhesive and is slowly stirred until uniform for later use;
s3, polyimide film production
Drying the polyimide film through two-sided chemical coupling treatment, and then producing the polyimide film on special mica tape coating and compounding equipment;
s4, adhesive coating
Uniformly coating a certain amount of adhesive on the surface of the polyimide film at a specified running speed, and then drying at a given temperature through an oven;
s5, compounding fiber-containing mica paper
Compounding fiber-containing mica paper on the polyimide glue-coated surface, heating and compacting;
s6, non-composite surface treatment of mica paper
Carrying out surface treatment on a non-composite surface of the mica paper containing the fiber powder, drying, then rolling, cutting and rolling on a tube core to form a disc shape;
s7, wrapping finished products
And finally wrapping the stator coil of the wind driven generator by a taping machine to serve as insulation to the ground.
The preparation method comprises the following steps: unreeling part of reinforcing material, gluing part of reinforcing material, intermediate drying part, unreeling part of mica paper, gluing part of mica paper, drying part of mica paper and reeling part of mica material.
Example 2:
the embodiment of the invention provides a fiber-containing mica organosilicon composition suitable for a large-scale offshore wind turbine, which adopts a common polyimide film with biaxial stretching of 0.025mm or 0.03mm and a corona-resistant polyimide film as reinforcing materials and further comprises the following components in percentage: 75% of mica paper, 10% of adhesive, 1% of curing initiator and 14% of heat conducting filler.
The mica paper is powdery mica paper containing chopped fibers, high-temperature calcined muscovite can be added into the mica paper, the content of the added calcined muscovite is 65%, the chopped fibers can be one of aramid fibers and polysulfonamide fibers, the content of the chopped fibers in the powdery mica paper is 5%, the adhesive adopts one of organic silicon resin and refined silicon rubber, the curing initiator is one or a mixture of more of benzoyl peroxide, tert-butyl benzoyl peroxide and methyl ethyl ketone peroxide, and the heat conducting filler is one or a mixture of more of aluminum oxide, magnesium oxide, aluminum nitride, boron nitride and silicon carbide.
The preparation method of the fiber-containing mica organosilicon composition suitable for the offshore large wind turbine generator comprises the following steps:
s1, preparation of adhesive
(1) When the organic silicon resin is used, a certain amount of organic silicon resin is weighed, toluene or xylene is added as a solvent, and a high-speed emulsifying machine is used for stirring for a certain time, so that the organic silicon resin is uniformly mixed;
(2) when the silicone rubber is used, the silicone rubber is cut into small pieces, the small pieces are put into a solvent for soaking for 24 hours, then the silicone rubber is scattered by stirring at a low speed by a stirrer, and then the silicone rubber solution is uniformly dissolved by stirring for a period of time by a high-speed emulsifying machine;
(3) adding a formula amount of heat conducting filler to carry out high-speed emulsification treatment, and then carrying out vacuum defoamation for standby;
s2, adding a curing initiator
Firstly, toluene or dimethylbenzene is used for stirring the curing initiator with the formula amount in a flask by a stirrer, so that the curing initiator is uniformly dissolved in a solvent, and then the solvent is added into the adhesive and is slowly stirred until uniform for later use;
s3, polyimide film production
Drying the polyimide film through two-sided chemical coupling treatment, and then producing the polyimide film on special mica tape coating and compounding equipment;
s4, adhesive coating
Uniformly coating a certain amount of adhesive on the surface of the polyimide film at a specified running speed, and then drying at a given temperature through an oven;
s5, compounding fiber-containing mica paper
Compounding fiber-containing mica paper on the polyimide glue-coated surface, heating and compacting;
s6, non-composite surface treatment of mica paper
Carrying out surface treatment on a non-composite surface of the mica paper containing the fiber powder, drying, then rolling, cutting and rolling on a tube core to form a disc shape;
s7, wrapping finished products
And finally wrapping the stator coil of the wind driven generator by a taping machine to serve as insulation to the ground.
Example 3:
the embodiment of the invention provides a fiber-containing mica organosilicon composition suitable for a large-scale offshore wind turbine, which adopts a common polyimide film with biaxial stretching of 0.025mm or 0.03mm and a corona-resistant polyimide film as reinforcing materials and further comprises the following components in percentage: 80% of mica paper, 5% of adhesive, 1.5% of curing initiator and 13.5% of heat conducting filler.
The mica paper is powdery mica paper containing chopped fibers, high-temperature calcined muscovite can be added into the mica paper, the content of the added calcined muscovite is 70%, the chopped fibers can be one of aramid fibers and polysulfonamide fibers, the content of the chopped fibers in the powdery mica paper is 6%, the adhesive adopts one of organic silicon resin and refined silicon rubber, the curing initiator is one or a mixture of more of benzoyl peroxide, tert-butyl benzoyl peroxide and methyl ethyl ketone peroxide, and the heat conducting filler is one or a mixture of more of aluminum oxide, magnesium oxide, aluminum nitride, boron nitride and silicon carbide.
The preparation method of the fiber-containing mica organosilicon composition suitable for the offshore large wind turbine generator comprises the following steps:
s1, preparation of adhesive
(1) When the organic silicon resin is used, a certain amount of organic silicon resin is weighed, toluene or xylene is added as a solvent, and a high-speed emulsifying machine is used for stirring for a certain time, so that the organic silicon resin is uniformly mixed;
(2) when the silicone rubber is used, the silicone rubber is cut into small pieces, the small pieces are put into a solvent for soaking for 24 hours, then the silicone rubber is scattered by stirring at a low speed by a stirrer, and then the silicone rubber solution is uniformly dissolved by stirring for a period of time by a high-speed emulsifying machine;
(3) adding a formula amount of heat conducting filler to carry out high-speed emulsification treatment, and then carrying out vacuum defoamation for standby;
s2, adding a curing initiator
Firstly, toluene or dimethylbenzene is used for stirring the curing initiator with the formula amount in a flask by a stirrer, so that the curing initiator is uniformly dissolved in a solvent, and then the solvent is added into the adhesive and is slowly stirred until uniform for later use;
s3, polyimide film production
Drying the polyimide film through two-sided chemical coupling treatment, and then producing the polyimide film on special mica tape coating and compounding equipment;
s4, adhesive coating
Uniformly coating a certain amount of adhesive on the surface of the polyimide film at a specified running speed, and then drying at a given temperature through an oven;
s5, compounding fiber-containing mica paper
Compounding fiber-containing mica paper on the polyimide glue-coated surface, heating and compacting;
s6, non-composite surface treatment of mica paper
Carrying out surface treatment on a non-composite surface of the mica paper containing the fiber powder, drying, then rolling, cutting and rolling on a tube core to form a disc shape;
s7, wrapping finished products
And finally wrapping the stator coil of the wind driven generator by a taping machine to serve as insulation to the ground.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The fiber-containing mica organosilicon composition suitable for the offshore large wind driven generator is characterized in that the organosilicon composition adopts a common polyimide film with biaxial stretching of 0.025mm or 0.03mm and a corona-resistant polyimide film as reinforcing materials, and further comprises the following components in percentage: 70-80% of mica paper, 3-15% of adhesive, 0.3-1.5% of curing initiator and 8-19% of heat conducting filler.
2. The organosilicon composition containing fiber mica for large-scale offshore wind turbine generator according to claim 1, wherein the mica paper is a mica paper containing chopped fibers, and the mica paper can be added with high-temperature calcined muscovite, and the content of the calcined muscovite added is 0-70%.
3. The fiber-containing mica organosilicon composition suitable for the offshore large wind turbine generator according to claim 2, wherein the chopped fiber can be one of aramid fiber and polysulfonamide fiber, and the content of the chopped fiber in the powdery mica paper is 1.5-6%.
4. The fiber-containing mica silicone composition suitable for use in a large offshore wind turbine of claim 1, wherein the adhesive is one of silicone resin and refined silicone rubber.
5. The fiber-containing mica organosilicon composition suitable for use in offshore large scale wind turbines according to claim 1, wherein the curing initiator is one or a mixture of several of benzoyl peroxide, t-butyl benzoyl peroxide and methyl ethyl ketone peroxide.
6. A fibre-containing mica silicone composition suitable for use in large offshore wind turbines as claimed in claim 1 wherein said thermally conductive filler is one or a mixture of several of alumina, magnesia, aluminum nitride, boron nitride, silicon carbide.
7. The preparation method of the fiber-containing mica organosilicon composition suitable for the offshore large wind turbine generator is characterized by comprising the following steps of:
s1, preparation of adhesive
(1) When the organic silicon resin is used, a certain amount of organic silicon resin is weighed, toluene or xylene is added as a solvent, and a high-speed emulsifying machine is used for stirring for a certain time, so that the organic silicon resin is uniformly mixed;
(2) when the silicone rubber is used, the silicone rubber is cut into small pieces, the small pieces are put into a solvent for soaking for 24 hours, then the silicone rubber is scattered by stirring at a low speed by a stirrer, and then the silicone rubber solution is uniformly dissolved by stirring for a period of time by a high-speed emulsifying machine;
(3) adding a formula amount of heat conducting filler to carry out high-speed emulsification treatment, and then carrying out vacuum defoamation for standby;
s2, adding a curing initiator
Firstly, toluene or dimethylbenzene is used for stirring the curing initiator with the formula amount in a flask by a stirrer, so that the curing initiator is uniformly dissolved in a solvent, and then the solvent is added into the adhesive and is slowly stirred until uniform for later use;
s3, polyimide film production
Drying the polyimide film through two-sided chemical coupling treatment, and then producing the polyimide film on special mica tape coating and compounding equipment;
s4, adhesive coating
Uniformly coating a certain amount of adhesive on the surface of the polyimide film at a specified running speed, and then drying at a given temperature through an oven;
s5, compounding fiber-containing mica paper
Compounding fiber-containing mica paper on the polyimide glue-coated surface, heating and compacting;
s6, non-composite surface treatment of mica paper
Carrying out surface treatment on a non-composite surface of the mica paper containing the fiber powder, drying, then rolling, cutting and rolling on a tube core to form a disc shape;
s7, wrapping finished products
And finally wrapping the stator coil of the wind driven generator by a taping machine to serve as insulation to the ground.
8. A method of preparing a fiber-containing mica silicone composition suitable for use in offshore large scale wind turbines according to claim 7, wherein the process of the preparation method comprises the following steps: unreeling part of reinforcing material, gluing part of reinforcing material, intermediate drying part, unreeling part of mica paper, gluing part of mica paper, drying part of mica paper and reeling part of mica material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311359195.4A CN117656620A (en) | 2023-10-19 | 2023-10-19 | Fiber-containing mica organosilicon composition suitable for large offshore wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311359195.4A CN117656620A (en) | 2023-10-19 | 2023-10-19 | Fiber-containing mica organosilicon composition suitable for large offshore wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117656620A true CN117656620A (en) | 2024-03-08 |
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| CN202311359195.4A Pending CN117656620A (en) | 2023-10-19 | 2023-10-19 | Fiber-containing mica organosilicon composition suitable for large offshore wind turbine generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117965106A (en) * | 2024-04-02 | 2024-05-03 | 天蔚蓝电驱动科技(江苏)有限公司 | Corona-resistant insulating film and preparation method thereof, electromagnetic wire and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117965106A (en) * | 2024-04-02 | 2024-05-03 | 天蔚蓝电驱动科技(江苏)有限公司 | Corona-resistant insulating film and preparation method thereof, electromagnetic wire and preparation method thereof |
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