CN101855278A - Electrical insulation system - Google Patents
Electrical insulation system Download PDFInfo
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- CN101855278A CN101855278A CN200880116594A CN200880116594A CN101855278A CN 101855278 A CN101855278 A CN 101855278A CN 200880116594 A CN200880116594 A CN 200880116594A CN 200880116594 A CN200880116594 A CN 200880116594A CN 101855278 A CN101855278 A CN 101855278A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/47—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes fibre-reinforced plastics, e.g. glass-reinforced plastics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/046—Reinforcing macromolecular compounds with loose or coherent fibrous material with synthetic macromolecular fibrous material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/36—Insulators having evacuated or gas-filled spaces
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
Abstract
Electrical insulation system being a fiber-reinforced composite system which is suitable to be used in gas-insulated switchgear applications, comprising a solidified polymer composition and a reinforcing fiber, wherein said fiber is selected from polyethylene naphthalate fibers, polybutylene naphthalate fibers, from fibers being a copolyester of bisphenol A and/or bisphenol F with naphthalene dicarbonic acid, from fibers being a copolyester of hydroxy-benzoic acid and hydroxy-naphthoic acid, or from a mixture of these fibers, and the use of the composite system especially in the production of gas-insulated switchgear applications.
Description
The present invention relates to as the electrical insulation system of fiber-reinforced composite system (fiber-reinforced compositesystem) and the production method of described electrical insulation system, described electrical insulation system has the mechanical property of improvement and is applicable to the gas-insulated switch application, preferably is applicable to the gas-insulated metal enclosed switchgear application.
The prior art level
Column insulated part in the gas-insulated switch, for example chamber isolator (chamberinsulator) and operating stick are usually by the fiber reinforced material manufacturing.Material therefor is preferably with polyethylene terephthalate (PET) fiber or with aramid fiber (aramide)
Fiber or its make up enhanced cured epoxy resin system.These fibers have strict restriction.For example, pet fiber has weak relatively mechanical property.Aramid fiber has the low adhesion between fiber and epoxy substrate and has high moisture absorption.Therefore, need performance, especially, be used for gas isolated electrical applications, for example be used for gas under pressure insulated switch station (GIS) as electrical insulator through improved electrical insulation system.
Have been found that, the fiber-reinforced composite system that comprises thermoplasticity or hard plasticity (duroplastic) polymer composition and fortifying fibre produces the electrical insulation system of the mechanical property with improvement, and it especially seals the electrical insulator of the production of electrical applications (for example gas under pressure insulated switch station (GIS)) with the production that acts on gas electrical isolation switch application, preferred gas insulated metal; Preferred hard thermoplastic polymer composition in described thermoplasticity or the hard thermoplastic polymer composition, preferred hardening epoxy resin composition, and described fortifying fibre is selected from Polyethylene Naphthalate (PEN) fiber, poly-naphthalic acid fourth diester (PBN) fiber, be selected from the copolyester fiber of dihydroxyphenyl propane and/or Bisphenol F and naphthalic acid, be selected from the copolyester fiber of the copolyester fiber of hydroxy-benzoic acid and hydroxyl-naphthoic acid, preferred P-hydroxybenzoic acid and 6-hydroxyl-2-naphthoic acid, or be selected from the mixture of these fibers.
Detailed Description Of The Invention
In claims, define the present invention.The present invention relates to be applicable to gas electrical isolation switch application, preferably be applicable to the electrical insulation system that gas-insulated metal enclosed switchgear is used, described electrical insulation system comprises cured polymer compositions (preferred consolidation composition epoxy resin) and fortifying fibre, described system is characterised in that described fortifying fibre is selected from Polyethylene Naphthalate (PEN) fiber, poly-naphthalic acid fourth diester (PBN) fiber, be selected from the copolyester fiber of dihydroxyphenyl propane and/or Bisphenol F and naphthalic acid, be selected from the copolyester fiber of hydroxy-benzoic acid and hydroxyl-naphthoic acid, the copolyesters of preferred P-hydroxybenzoic acid and 6-hydroxyl-2-naphthoic acid, or being selected from the mixture of these fibers, wherein said fiber-reinforced composite system is optional can to contain other additive.
The invention still further relates to the production method of described electrical insulation system, described electrical insulation system is applicable to above-mentioned gas electrical isolation switch application, preferably is applicable to gas-insulated metal-enclosed electrical applications, for example gas under pressure insulated switch station (GIS).The invention still further relates to described electrical insulator and tie up to purposes in the production of following application: described gas electrical isolation switch application, preferred gas insulated metal sealing electrical applications be gas under pressure insulated switch station (GIS) or spacer insulator and related application for example.The invention still further relates to the described gas electrical isolation switch application, the preferred gas insulated metal sealing electrical applications that comprise electrical insulation system of the present invention.
Polyethylene Naphthalate (PEN) is the ester of ethylene glycol and naphthalic acid and contains following chemical unit basically:
Poly-naphthalic acid fourth diester (PBN) is the ester of butyleneglycol and naphthalic acid and contains following chemical unit basically:
The copolyesters of dihydroxyphenyl propane and/or Bisphenol F and naphthalic acid contains following chemical unit basically:
If wherein prepared by dihydroxyphenyl propane: G is a methyl; If prepared by Bisphenol F: G is a hydrogen.
The copolyesters of P-hydroxybenzoic acid and 6-hydroxyl-2-naphthoic acid contains following chemical unit basically:
Above-mentionedly be used for Fibre diameter that fiber of the present invention preferably has as Coarse Mesh Gauze (roving cloth) and the used Fibre diameter of fabric made by described fiber.General diameter is preferably about 1-100 micron and is preferably about 5-50 micron in about 0.4-200 micron (μ m).Diameter is not critical usually.If necessary, within this area professional's ken, make the diameter optimizing.
Fortifying fibre can exist with the form of chopped strand, and the mean length of described chopped strand is preferably 0.5mm-15mm, is preferably 1.0mm-8mm.Yet, purposes of the present invention is preferably to use fiber with the non-weak point form of cutting, promptly as dry continuous non-woven long filament (dry con-tinuous non-woven filament) or as fiber roving or as woven fabrics reaction cloth (woven fabric resp.cloth).Dry body (dry-body) preferably produces by the dry method winding (dry winding) of fiber roving or the dry method winding of fabric.One or more these fibrid rove or cloth also can be arranged in the hardening resin system with any desired sequence, preferably twine (for example around axle) by the dry method of rove or cloth, or with parallel and/or right angle order.Described system also can contain the combination of chopped strand and/or continuous fibre and/or one or more fiber rovings or cloth.
The consumption of the fortifying fibre that is selected from the used fiber of the present invention and is described in detail as mentioned preferably accounts for 20% weight-70% weight of fiber-reinforced composite system gross weight, preferably accounts for 30% weight-60% weight, preferably accounts for 35% weight-55% weight.
The used polymkeric substance of the present invention is preferably selected from epoxy-resin systems, urethane, polyester, polymeric amide, polybutylene terephthalate and poly-Dicyclopentadiene (DCPD).Polymkeric substance preferably is selected from the hard thermoplastic polymer of epoxy-resin systems and urethane, most preferably the hard plasticity of cured epoxy resin system.
As optional additive, the fiber-reinforced composite system also can comprise and is selected from following component: filler, wetting/dispersion agent, softening agent, antioxidant, optical absorbing agent, silicone resin and other additive that uses in electrical applications usually.The gross weight of fortifying fibre, filler and optional other additive can account for up to 80% weight, preferably up to the described fiber-reinforced composite system gross weight of 70% weight.
Fiber-reinforced composite system of the present invention can be chosen wantonly and contain micron order size or the mineral filler material of nano-grade size distribution or the mixture of described filler material.Yet mineral filler preferably has the average particle size distribution of 1 μ m-500 μ m, is preferably 5 μ m-100 μ m.Preferably at least 70% particle, preferably at least 80% particle and preferably at least 90% particle grain size in stated limit.
Mineral filler is preferably selected from the conventional fillers material that is used as filler in gas electrical isolation switch application usually.This class filler material is for example to sulfur hexafluoride (SF
6) degraded product stable, for example aluminum oxide and itself are known.Preferred electrical insulation system of the present invention does not contain filler material.
Epoxy-resin systems, polyester, polymeric amide, polybutylene terephthalate, urethane and poly-Dicyclopentadiene (DCPD) have had description in the literature.When preparation concrete fiber-reinforced composite system of the present invention, can described fibre fractionation be incorporated into respectively in each polymer monomer raw material with optional additives according to the described similar fashion that is generally used for filler material and other additive of document.Raw material sclerosis or curing then.This is within this area professional's ken.
When the weak point of definition is cut fortifying fibre in using as mentioned,, reinforcing fiber materials is incorporated in each polymer monomer raw material, makes it homodisperse therein by currently known methods.The non-hardening composition that obtains thus (for example unsclerotized composition epoxy resin) can be for example by using conventional vacuum casting and/or the gelation of pressurizeing automatically (automated pressure gelation APG) manufacture method is processed.Use currently known methods, choose wantonly under the help of shaping jig, dispersion is formed desired shape, sclerosis or curing then, the optional after fixing that adopts.
Like this, the present invention also relates to be applicable to gas electrical isolation switch application, preferably be applicable to the production method of the electrical insulation system of gas-insulated metal-enclosed electrical applications, described method be characterised in that with short cut fortifying fibre and optional as mentioned in other additive of definition be incorporated into as mentioned in the raw material monomer of each polymkeric substance (preferred epoxy composition) of definition, make it homodisperse therein, choose wantonly under the help of shaping jig, make dispersion form desired shape, sclerosis or curing then, the optional after fixing that adopts; Described weak point is cut fortifying fibre and is selected from Polyethylene Naphthalate (PEN) fiber, poly-naphthalic acid fourth diester (PBN) fiber, be selected from the copolyester fiber of dihydroxyphenyl propane and/or Bisphenol F and naphthalic acid, be selected from the copolyesters of the copolyester fiber of hydroxy-benzoic acid and hydroxyl-naphthoic acid, preferred P-hydroxybenzoic acid and 6-hydroxyl-2-naphthoic acid, or be selected from the mixture of these fibers.
The fiber-reinforced composite system preference of the present invention that is suitable as electrical insulation system contains fortifying fibre, it is the form of continuous non-woven long filament (continuous non-woven filament), or as fiber roving or as woven fabrics or as no crimped fabric (non-crimp fabric).Dry body preferably twines by the dry method winding of fiber roving or by the dry method winding of woven fabrics or by the dry method of no crimped fabric and produces.One or more these fibrid rove or fabric also can be arranged in the hardening resin system with any desired sequence, preferably twine (for example around axle) by the dry method of rove or fabric, or with parallel and/or right angle order.Described system also can contain the combination of chopped strand and/or continuous fibre and/or one or more fiber rovings or fabric.
Therefore the present invention also relates to the production method of the electrical insulation system that is applicable to gas electrical isolation switch application, preferred gas insulated metal sealing electrical applications, described method is characterised in that following steps: mould (i) is provided, it is used to include the product of at least one drying layer strongthener, definition as mentioned, described strongthener comprises continuous non-woven long filament and/or at least a fiber roving and/or at least a woven fabrics and/or at least a no crimped fabric in mould; (ii) unhardened monomer composition, preferred monomers epoxy resin composition are cast in the described mould, thereby fill full described mould and make at least one deck strongthener by thorough impregnation; (iii) under suitable temp, in described mould, make described monomer composition sclerosis and/or curing sufficiently long time, solidify (hardened resp.cured) to reach sclerous reaction; (iv) choose wantonly resultant fiber-reinforced composite system is carried out after fixing.
The dry reinforcement material that comprises above-mentioned at least one drying layer of continuous non-woven long filament and/or at least a fiber roving and/or at least a woven fabrics and/or at least a no crimped fabric is also referred to as " dry body (drybody) ".In order to produce dry body, aforesaid fiber, rove or fabric are twined around cylinder (so-called axle).Can use polyester suede layer (fleece layer) so that dry body is stable.Subsequently, axle is put into another cylinder (external mold), flood described fiber then.
The preferred thermosetting resin of Shi Yonging is the Resins, epoxy by aromatic substance and/or alicyclic compound preparation in the present invention.These compounds itself are known.Resins, epoxy is that per molecule contains at least two 1, the reactive glycidyl compounds of 2-epoxy group(ing).Preferably, use the mixture of multi-shrinking glyceryl compound, as the mixture of diglycidyl compounds and triglycidyl group compound.
Be used for that epoxy compounds of the present invention comprises unsubstituted glycidyl and/or by methyl substituted glycidyl.These glycidyl compounds preferably have between 200 and 1200, the molecular weight between 200 and 1000 especially, and can be solid or liquid.Oxirane value (equivalent/100g) preferably at least 3, preferably at least 4 and especially about 5, preferred about 4.9 to 5.1 or higher.The glycidyl compound that preferably has glycidyl ether and/or glycidyl ester group.This compounds also can contain two types glycidyl, for example 4-glycidyl oxygen base-phenylformic acid glycidyl esters.The poly epihydric alcohol base ester that preferably has 1-4 glycidyl ester group, especially diglycidyl ester and/or triglycidyl group ester.Preferred glycidyl esters can form for aliphatic, alicyclic, heterocycle, heterocycle-aliphatic series or heterocycle-aromatics two carbonic acid or from aliphatic series two carbonic acid with 2-10 carbon atom from aromatics, the virtue with individual, preferred 6-12 the ring carbon atom of 6-20.Preferably for example be Resins, epoxy with optional replacement of following formula (IV):
D＝-O-，-SO2-，-CO-，-CH2-，-C(CH3)2-，-C(CF3)2-
N=0 or 1
Or the Resins, epoxy of the optional replacement of following formula V:
Example is from dihydroxyphenyl propane or Bisphenol F deutero-glycidyl ether and from phenol-lacquer resins (phenol-Novolak-resin) or cresols-lacquer resins (cresol-Novolak-resin) deutero-glycidyl ether.
Cycloaliphatic epoxy resin for example is six hydrogen-phthalic acid-two-glycidyl esters, six hydrogen-m-phthalic acid-two-glycidyl esters or six hydrogen-right-phthalic acid-two-glycidyl esters.Also have aliphatic epoxy resin, for example 1,4-butane-glycol diglycidyl ether can be as the component of the present composition.
In the present invention, preferably in molecule, contain with ining addition at least one, the preferably aromatic epoxy resin and/or the cycloaliphatic epoxy resin of at least two amino Racemic glycidol groups.This based epoxy resin is known and for example is described among the WO 99/67315.Preferred compound is those compounds with following formula (VI):
D＝-O-，-SO2-，-CO-，-CH2-，-C(CH3)2-，-C(CF3)2-
The amino glycidyl compound that n=0 or 1 is especially suitable is N, the N-diglycidylaniline, N, N-diglycidyl Tolylamine, N, N, N ', N '-four glycidyl group-1, the 3-diaminobenzene, N, N, N ', N '-four glycidyl group-1, the 4-diaminobenzene, N, N, N ', N '-four glycidyl group dimethylphenylene diamine, N, N, N ', N '-four glycidyl group-4,4 '-diaminodiphenyl-methane, N, N, N ', N '-four glycidyl group-3,3 '-diethyl-4,4 '-diaminodiphenyl-methane, N, N, N ', N '-four glycidyl group-3,3 '-diamino diphenyl sulfone, N, N '-dimethyl-N, N '-diglycidyl-4,4 '-diaminodiphenyl-methane, N, N, N ', N '-four glycidyl group-α, α '-two (4-aminophenyl)-right-diisopropyl benzene and N, N, N ', N '-four glycidyl group-α, α '-two-(3,5-dimethyl-4-aminophenyl)-right-diisopropyl benzene.Preferred amino glycidyl compound also can be those of following formula (VII):
Or those of following formula (VIII):
The amino glycidyl compound of other that can use according to the present invention is described in for example Houben-Weyl, Methoden der Organischen Chemie, Band E20, Makromolekulare Stoffe, Georg Thieme Verlag Stuttgart, in 1987, the 1926-1928 pages or leaves.
Stiffening agent becomes known in the Resins, epoxy.Stiffening agent for example is the polymkeric substance of hydroxyl and/or carboxyl, such as polyester and/or carboxylic acrylic ester polymer and/or the methacrylate polymers and/or the carboxylic acid anhydride of carboxyl terminal.Useful stiffening agent still is aromatics, aliphatic series, the alicyclic and polycarboxylic cyclic acid anhydride of heterocycle family.Aromatic multi-carboxy acid's preferred anhydrides is Tetra hydro Phthalic anhydride and substitutive derivative thereof, benzene-1,2,4,5-tetracarboxylic dianhydride and substitutive derivative thereof.A lot of other stiffening agents can be known from document.
Optional stiffening agent can be that the normal concentration of 0.2-1.2 is used there to be the sclerosis group, for example 1 anhydride group/per 1 epoxy equivalent (weight).Yet the group that usually hardens is that the normal concentration of 0.2-0.4 is preferred.
As optional additive, said composition can further comprise at least: be used for the polymerization of reinforced epoxy and stiffening agent solidifying agent (promotor), at least a wetting/dispersion agent, softening agent, antioxidant, optical absorbing agent and other additive of using in electrical applications.
The solidifying agent that is used for the polymerization of reinforced epoxy and stiffening agent for example is the tertiary amine such as benzyl dimethyl amine, or such as the amine-mixture of the mixture of tertiary amine and boron trichloride or boron trifluoride; Urea derivatives, such as N-4-chloro-phenyl--N ', N '-dimethyl urea (Monuron); The optional imidazoles that replaces is such as imidazoles or 2-phenyl-imidazoles.Tertiary amine preferably.Other curing catalysts such as cobalt (III), copper, manganese (II), the transition metal composite of zinc in acetylacetonate also can use, for example acetylacetone cobalt (III).Weight with respect to institute's cured compositions is calculated, and catalyst consumption is the concentration of about 50-1000ppm weight.
Wetting/dispersion agent itself is known, for example with following form: tensio-active agent; Or reactive diluent, preferably contain reactive diluent epoxy group(ing) or hydroxyl; Thixotropic agent or modifier.Known reactive diluent for example is cresyl glycidyl ether, bicyclic oxygen ethyl-1, the diepoxide of 2-benzene, dihydroxyphenyl propane, Bisphenol F and diglycidyl ether thereof, two pure and mild polyglycol (diepoxyde) is as dimethyltrimethylene glycol-diglycidyl ether or TriMethylolPropane(TMP)-diglycidyl ether.Preferred commercially available wetting/dispersion agent for example is the organic copolymer that contains acidic-group, for example acid number is 129mg KOH/g's
W-9010.This type of wetting/dispersion agent preferably uses with the amount based on the 0.5%-1.0% of filler weight.
Softening agent, antioxidant, optical absorbing agent and other additive that uses in electrical applications are well known in the prior art and are not critical.
Be prepared as follows from the insulation composition of Resins, epoxy preparation: choose wantonly under vacuum, simply by mixing whole components, then by this mixture that is heating and curing according to any desired sequence.If preparation comprises the fiber-reinforced composite system of one deck fortifying fibre Coarse Mesh Gauze at least, then the insulation composition from the Resins, epoxy preparation is prepared as follows: choose wantonly under vacuum, simply by mixing whole components, then it is joined at least on one deck fortifying fibre Coarse Mesh Gauze according to any desired sequence.
Preferably before curing, add stiffening agent and solidifying agent separately.Solidification value is preferably 50 ℃ to 280 ℃, is preferably 100 ℃ to 200 ℃.Solidify and also might carry out under lower temperature usually, completely solidified need last up to several days at a lower temperature in view of the above, and this also depends on existing catalyzer and concentration thereof.
Following operation is preferably by using vacuum technique, preferred combination application pressure to carry out: unhardened monomer composition is cast in the mould, thereby fill mould and make the strongthener of one deck at least in the mould by thorough impregnation.Also can adopt method for oscillating, so that improve dipping and make bubble minimum.Unsclerotized insualtion resin composition is especially preferably by using the vacuum casting or gelation (APG) manufacture method of pressurizeing automatically, choosing wantonly adopting vacuum or resin transfer moulding (resintransfer molding) or vacuum-assisted resin transfer molding (vacuum assisted resintransfer molding) time to use, so that remove all moisture and bubble from insulation composition.This encapsulation compositions can adopt any currently known methods in this area to solidify by composition being heated to required solidification value.
Electrical insulation system of the present invention can be used for gas electrical insulation applications, especially gas electrical isolation switch application, and (preferred gas insulated metal sealing electrical applications is such as gas under pressure insulated switch station (GIS) or porcelain knob breaker (life-tank breaker), the production of potting breaker (dead-tankbreaker) and related application of landing.
Electrical insulation system of the present invention also can be used for for example producing transformer, indoor and outdoor use High-Voltage Insulation, be particularly useful for the outdoor insulative body relevant, as long rod, matrix material and lid type isolator with hi-line.The following example is for example understood the present invention.
Embodiment 1
Composition epoxy resin prescription A and prescription B be by
Table 1Given component preparation.By with Resins, epoxy, stiffening agent and promotor thorough mixing under 80 ℃ of temperature, prepare described composition.Under 80 ℃, vacuum, mixture is outgased then.With vacuum take-off dipping (vacuum impregnation) described mixture is moved in the mould again, in the mould that uncured epoxy composite is joined the rove (at every turn by PEN fiber or PET fiber production) that contains the dry method winding, produce insulating bar and operating stick.Then composition was solidified 10 hours at 140 ℃.
The definition of raw material:
CY 228 bisphenol A epoxide resins
HY 918 modified carboxylic acid acid anhydrides
EPC 845 enhanced tertiary amine
The PEN fiber is from the T112-110 type of Performance Fibers GmbH
The PET fiber is from the T711 type of Performance Fibers GmbH
Table 1:
PET strengthens the comparison of bar and PEN enhancing bar
Test result shows, is better than mechanical property by the PET fiber reinforcement component of prescription B preparation by the mechanical property of the PEN fiber reinforcement component of prescription A preparation.The tension test that carries out on PET reinforced epoxy bar and PEN reinforced epoxy bar shows that hardness and cripping load (loadto failure) are significantly increased (Fig. 1).
Composition epoxy resin prescription C and prescription D be by
Table 2Given component preparation.By with Resins, epoxy, stiffening agent and promotor thorough mixing under 80 ℃ of temperature, prepare described composition.Under 80 ℃, vacuum, mixture is outgased then.With vacuum take-off dipping mixture is moved in the mould again, by uncured epoxy composite is joined the rove that contains dry method and twine (at every turn by
Or Kevlar fiber production) in the mould, produces insulating bar and operating stick.Then composition was solidified 10 hours at 140 ℃.
The definition of raw material:
CY 228 bisphenol A epoxide resins
HY 918 modified carboxylic acid acid anhydrides
EPC 845 enhanced tertiary amine
Kevlar is from the aramid fiber rove of Du Pont (DuPont)
Table 2:
Strengthen the comparison that bar and Kevlar strengthen bar
The water absorbability of Vectran is starkly lower than Kevlar.Only need under the situation at Kevlar at the drying step before the dipping of fortifying fibre.With
Alternative Kevlar makes the more efficient and product of isolator production be more suitable for electrical insulation applications, because water content is lower.
Claims (17)
1. be applicable to gas electrical isolation switch application, preferably be applicable to the electrical insulation system of gas-insulated metal-enclosed electrical applications, described electrical insulation system comprises cured polymer compositions and fortifying fibre, it is characterized in that, described fortifying fibre is selected from Polyethylene Naphthalate (PEN) fiber, poly-naphthalic acid fourth diester (PBN) fiber, be selected from the copolyester fiber of dihydroxyphenyl propane and/or Bisphenol F and naphthalic acid, be selected from the copolyester fiber of hydroxy-benzoic acid and hydroxyl-naphthoic acid, the copolyester fiber of preferred P-hydroxybenzoic acid and 6-hydroxyl-2-naphthoic acid, or being selected from the mixture of these fibers, wherein said fiber-reinforced composite system is optional can to contain other additive.
2. the insulation system of claim 1 is characterized in that, described fortifying fibre exists with the form of chopped strand, and the mean length of described chopped strand is preferably 0.5mm to 15mm, is preferably 1.0mm to 8mm.
3. claim 1 or 2 insulation system is characterized in that, described fortifying fibre exists with the continuous non-woven long filament of drying or fiber roving or woven fabrics or the form of not having a crimped fabric.
4. each insulation system among the claim 1-3 is characterized in that, described system contains the combination of chopped strand and/or continuous fibre and/or fiber roving or cloth.
5. each insulation system among the claim 1-4, it is characterized in that, the amount of described fortifying fibre accounts for 20% weight to 70% weight of described fiber-reinforced composite system gross weight, preferably accounts for 30% weight to 60% weight, preferably accounts for 35% weight to 55% weight.
6. each insulation system among the claim 1-5 is characterized in that, the polymkeric substance of described polymer composition is selected from epoxy-resin systems, urethane, polyester, polymeric amide, polybutylene terephthalate and poly-Dicyclopentadiene (DCPD).
7. the insulation system of claim 6, it is characterized in that, described polymkeric substance be selected from the hard thermoplastic polymer of epoxy-resin systems and urethane and preferred epoxy system, preferably by the Resins, epoxy of aromatic substance and/or alicyclic compound preparation, preferably have 4.9-5.1 equivalent/100g or a higher oxirane value.
8. each insulation system among the claim 1-7, it is characterized in that described fiber-reinforced composite system also comprises the component that is selected from filler material, wetting/dispersion agent, softening agent, antioxidant, optical absorbing agent, silicone resin and be selected from other components of additives of using usually in electrical applications.
9. each insulation system among the claim 1-8 is characterized in that, the total amount of the fortifying fibre of existence, filler and optional other additive can account for up to 80% weight, preferably up to the described fiber-reinforced composite system gross weight of 70% weight.
10. each insulation system among the claim 1-9, it is characterized in that, described compound system contains micron order size or the mineral filler material of nano-grade size distribution or the mixture of described filler material, and preferred micron order size size-grade distribution is the mineral filler of 1 μ m-500 μ m, preferred 5 μ m-100 μ m.
11. the insulation system of claim 10 is characterized in that, described mineral filler is selected from the stable filler material of sulfur hexafluoride degraded product.
12. the production method of each electrical insulation system among the claim 1-11, it is characterized in that, (i) weak point is cut the raw material monomer that fortifying fibre and other optional additive are incorporated into each polymkeric substance, in the preferred epoxy composition, make it homodisperse therein, described weak point is cut fortifying fibre and is selected from Polyethylene Naphthalate (PEN) fiber, poly-naphthalic acid fourth diester (PBN) fiber, be selected from the copolyester fiber of dihydroxyphenyl propane and/or Bisphenol F and naphthalic acid, be selected from the copolyester fiber of hydroxy-benzoic acid and hydroxyl-naphthoic acid, the copolyester fiber of preferred P-hydroxybenzoic acid and 6-hydroxyl-2-naphthoic acid, or be selected from the mixture of these fibers, (ii) then, choose wantonly under the help of shaping jig, described dispersion is formed desired shape, and harden or solidify, the optional after fixing that carries out.
13. the production method of each electrical insulation system among the claim 1-11, said method comprising the steps of: (i) be provided for including the mould of the product of at least one drying layer strongthener, described strongthener comprises continuous non-woven long filament and/or at least a fiber roving and/or at least a woven fabrics in described mould; (ii) unhardened monomer composition, preferred monomers epoxy resin composition are cast in the described mould, thereby fill full described mould and make at least one deck strongthener by thorough impregnation; (iii) under suitable temp, in described mould, make described monomer composition sclerosis and/or solidify the sufficiently long time, solidify to reach sclerous reaction; (iv) choose wantonly resultant fiber-reinforced composite system is carried out after fixing.
14. the method for claim 13 is characterized in that, by use vacuum technique and/or pressure under the optional use vibrating method, unhardened monomer composition is cast in the described mould.
15. the method for claim 14 is characterized in that, uses described non-sclerosis insualtion resin composition with the following method by making: use vacuum casting; Or choose wantonly in automatic pressurization gelation (APG) manufacture method of using under the vacuum; Or resin transfer moulding; Or vacuum-assisted resin transfer molding.
16. each electrical insulator ties up to the purposes in the production of gas electrical isolation switch application, preferred gas insulated metal sealing electrical applications, preferred gas under pressure insulated switch station (GIS) or spacer insulator and related application among the claim 1-11.
17. comprise gas electrical isolation switch application, preferred gas insulated metal sealing electrical applications, preferred gas under pressure insulated switch station (GIS) or the spacer insulator and the related application of each electrical insulation system among the claim 1-11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EPPCT/EP2007/062272 | 2007-11-13 | ||
| PCT/EP2007/062272 WO2009062543A1 (en) | 2007-11-13 | 2007-11-13 | Fiber-reinforced composite system as electrical insulation |
| PCT/EP2008/064998 WO2009062873A1 (en) | 2007-11-13 | 2008-11-05 | Electrical insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101855278A true CN101855278A (en) | 2010-10-06 |
Family
ID=39415394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880116594A Pending CN101855278A (en) | 2007-11-13 | 2008-11-05 | Electrical insulation system |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20100099681A (en) |
| CN (1) | CN101855278A (en) |
| WO (2) | WO2009062543A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390180A (en) * | 2015-10-30 | 2016-03-09 | 太仓市天合新材料科技有限公司 | Novel insulating material |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009035097A1 (en) * | 2009-07-29 | 2011-02-03 | Siemens Aktiengesellschaft | Flächenisolierfolie and application |
| US7932469B1 (en) | 2009-10-23 | 2011-04-26 | Neptco, Inc. | Metallic wire tracer element including woven protective tube and methods of making same |
| DE102009052432A1 (en) * | 2009-11-10 | 2011-06-09 | Siemens Aktiengesellschaft | Coated insulating films for electrical machines and manufacturing processes thereto |
| CN101794647B (en) * | 2010-03-12 | 2011-06-22 | 西安航天复合材料研究所 | Manufacturing method of insulating support rod |
| CN101834042B (en) * | 2010-05-21 | 2011-11-30 | 成都盛帮密封件股份有限公司 | Process of insulating cap for medium-voltage electrical appliances |
| US9281098B2 (en) * | 2011-02-09 | 2016-03-08 | Waukesha Electric Systems, Inc. | Dry type electrical insulation |
| CN102786775B (en) * | 2012-07-25 | 2014-07-02 | 东华大学 | RTM epoxy resin matrix and its preparation method |
| US20180112031A1 (en) * | 2015-03-26 | 2018-04-26 | Huntsman International Llc | A Process for the Preparation of Insulation Systems for Electrical Engineering, the Articles Obtained Therefrom and the Use Thereof |
| CA2976846C (en) * | 2015-03-26 | 2023-08-01 | Huntsman Advanced Materials Licensing (Switzerland) Gmbh | A thermosetting epoxy resin composition for the preparation of outdoor articles, and the articles obtained therefrom |
| CN104945854B (en) * | 2015-07-23 | 2017-05-24 | 北京化工大学 | Preparation method for short carbon fiber interlayer-reinforced fiber composite material |
| DE102017004481A1 (en) * | 2017-05-11 | 2018-11-15 | Carl Freudenberg Kg | Textile fabric for electrical insulation |
| CN114437539B (en) * | 2020-10-30 | 2024-02-13 | 中国石油化工股份有限公司 | Reinforced nylon material and preparation method and application thereof |
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|---|---|---|---|---|
| WO1995017755A1 (en) * | 1993-12-22 | 1995-06-29 | Abb Patent Gmbh | Process for producing an insulation system |
| JP3806200B2 (en) * | 1996-12-24 | 2006-08-09 | 松下電工株式会社 | Prepreg and laminate |
| JP2004002653A (en) * | 2002-04-22 | 2004-01-08 | Shin Kobe Electric Mach Co Ltd | Prepreg for printed circuit board and method for manufacturing the same, and printed circuit board |
| DE60234254D1 (en) * | 2002-08-02 | 2009-12-17 | Abb Research Ltd | Solid insulator and method of making a solid insulator |
| JP3985633B2 (en) * | 2002-08-26 | 2007-10-03 | 株式会社日立製作所 | High frequency electronic components using low dielectric loss tangent insulation materials |
| SE527132C2 (en) * | 2003-04-30 | 2005-12-27 | Abb Technology Ltd | Surge |
| JP2004352845A (en) * | 2003-05-29 | 2004-12-16 | Kyocera Chemical Corp | Halogen-free prepreg, metal foil-clad laminate, and build-up type multilayer printed wiring board |
| JP2005015616A (en) * | 2003-06-26 | 2005-01-20 | Kyocera Chemical Corp | Resin composition for laminated board, organic base prepreg, metallic foil-clad laminated board, and printed wiring board |
| JP2005179838A (en) * | 2003-12-22 | 2005-07-07 | Shin Kobe Electric Mach Co Ltd | Nonwoven fabric for electrical insulation and method for producing the same, prepreg, laminated sheet and printed circuit board |
| JP2005306897A (en) * | 2004-04-16 | 2005-11-04 | Tomoegawa Paper Co Ltd | Electrical insulating substrate, method for producing the same, prepreg and printed wiring board using the same |
| JP4580705B2 (en) * | 2004-07-08 | 2010-11-17 | 株式会社巴川製紙所 | Base material for electrical insulation, method for producing the same, and prepreg and printed wiring board using the base material |
| JP2006037280A (en) * | 2004-07-28 | 2006-02-09 | Shin Kobe Electric Mach Co Ltd | Nonwoven fabric for electric insulation, method for producing the same, prepreg, laminated plate and printed circuit board |
| CN101370644B (en) * | 2006-01-27 | 2011-09-21 | 米其林研究和技术股份有限公司 | Process for manufacturing a composite ring |
-
2007
- 2007-11-13 WO PCT/EP2007/062272 patent/WO2009062543A1/en active Application Filing
-
2008
- 2008-11-05 KR KR1020107010272A patent/KR20100099681A/en not_active Application Discontinuation
- 2008-11-05 CN CN200880116594A patent/CN101855278A/en active Pending
- 2008-11-05 WO PCT/EP2008/064998 patent/WO2009062873A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390180A (en) * | 2015-10-30 | 2016-03-09 | 太仓市天合新材料科技有限公司 | Novel insulating material |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009062873A1 (en) | 2009-05-22 |
| KR20100099681A (en) | 2010-09-13 |
| WO2009062543A1 (en) | 2009-05-22 |
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