CN110154485A - A kind of insulating paper of transformer - Google Patents

A kind of insulating paper of transformer Download PDF

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Publication number
CN110154485A
CN110154485A CN201910423467.XA CN201910423467A CN110154485A CN 110154485 A CN110154485 A CN 110154485A CN 201910423467 A CN201910423467 A CN 201910423467A CN 110154485 A CN110154485 A CN 110154485A
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CN
China
Prior art keywords
insulating paper
layer
film layer
adhesive
nano
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910423467.XA
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Chinese (zh)
Inventor
周顺奎
任桂军
闾传瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANTONG RIZHI ELECTRIC POWER MATERIAL Co Ltd
Original Assignee
NANTONG RIZHI ELECTRIC POWER MATERIAL Co Ltd
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Priority to CN201910423467.XA priority Critical patent/CN110154485A/en
Publication of CN110154485A publication Critical patent/CN110154485A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • 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
    • H01B17/56—Insulating bodies
    • H01B17/60—Composite insulating bodies
    • 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
    • H01B17/56—Insulating bodies
    • H01B17/66—Joining insulating bodies together, e.g. by bonding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
    • 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
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/33—Arrangements for noise damping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/552—Fatigue strength
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Insulating Bodies (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The present invention is a kind of insulating paper of transformer, including first nanometer of film layer (1), first film layer (2), first insulating paper layer (3), middle film layer (4), second insulating paper layer (5), nano protective film layer (6) is cascading, it is bonded up and down between each layer using adhesive, the adhesive is the epoxy glue of organosilicon adhesive and epoxy resin adhesive, the mixed proportion of the organosilicon adhesive and epoxy resin adhesive is 1:6, nano protective film layer (6) the material quality percentage are as follows: nanometer styrene 21-19%, nano-silicon nitride 16-14%, nano magnesia 12-11%, nano aluminium oxide 9-8%, nano zircite 11-10%, nano zine oxide 11-8%, nano-titanium oxide 12-10%, epoxy resin 10-8%, nanometer Material dispersing agent 3%, surfactant 2%.

Description

A kind of insulating paper of transformer
Technical field
The present invention relates to insulating materials technical field more particularly to a kind of insulating papers of transformer.
Background technique
Power transformer is the core component in electric system, is responsible for the vital task of electric system electric energy transmission.Oil The interior insulation of immersion transformer is the compound inslation formed with insulating paper and transformer oil.Recently as the continuous of voltage class It improves, the requirement to transformer interior insulation is also higher and higher.Therefore compound inslation composed by insulating paper and transformer oil is improved Insulation performance have highly important practical significance.Although current insulating paper achieves preferable effect in some respect, However in actual use, it is not still able to satisfy transformer in heat-resisting, mechanical strength, flexibility and tear strength etc. The requirement of aspect.
Such as Chinese patent CN204102649U discloses a kind of water chestnut lattice glue-dispensing insulation paper using mylar, comprising: First layer cable paper, middle layer mylar, second layer cable paper；The first layer cable paper passes through the first layer uniformly smeared Adhesive and middle layer mylar close adhesion, the middle layer mylar pass through the second layer adhesive uniformly smeared with Second layer cable paper close adhesion；Although its solve in the prior art insulating materials in terms of anti-breakdown voltage, oil resistivity compared with The problem of difference, but its temperature classification is lower, can only achieve B grade, it is difficult to the use for meeting wind-powered electricity generation, solar energy transformer is wanted Ask, at the same its such as mechanical strength etc. is still slightly inadequate in other respects.
Summary of the invention
To overcome the problems, such as transformer existing in the prior art in heat-resisting, mechanical strength, flexibility and tear strength, sheet Invention provides a kind of insulating paper of transformer.
The technical solution adopted by the present invention are as follows: a kind of insulating paper of transformer, innovative point are: including the first nanometer film The 1, first film layer 2 of layer, the first insulating paper layer 3, middle film layer 4, the second insulating paper layer 5, nano protective film layer 6 are stacked gradually and are set It sets, is bonded up and down between each layer using adhesive, the adhesive is the mixing of organosilicon adhesive and epoxy resin adhesive The mixed proportion of glue, the organosilicon adhesive and epoxy resin adhesive is 1:6,6 material quality of nano protective film layer Percentage are as follows: nanometer styrene 21-19%, nano-silicon nitride 16-14%, nano magnesia 12-11%, nano aluminium oxide 9- 8%, nano zircite 11-10%, nano zine oxide 11-8%, nano-titanium oxide 12-10%, epoxy resin 10-8%, nanometer Material dispersing agent 3%, surfactant 2%.
In some embodiments, the material quality percentage of the organosilicon adhesive are as follows: acrylic ester compound 26%, organopolysiloxane 24%, isophthalic amine curing agent 20%, epoxy resin compound 16%, toughener 10%, ethylene Amines catalyst 4%；The material quality percentage of the epoxy resin adhesive are as follows: modified epoxy 32%, anhydride-cured Agent 24%, polyurethanes diluent 18%, acrylic acid ethers promotor 11%, adhesiveness increasing and modifying agent 9%, high-temperature stabilizer 6%.
In some embodiments, ink layer is by resin, auxiliary agent, fluorine-containing epoxy hardener, stabilizer, solvent, filler group At.The production method of first nanometer of film layer is consistent with nanometer protective layer.
In some embodiments, the middle film layer film 4 is Kapton or polyester film or poly- four Fluoroethylene film, first film layer 2 are high temperature resistance polyester film layer, and first insulating paper layer 3 and the second insulating paper layer 5 are High-density polyethylene material or meta-aramid fibers material.
In some embodiments, the first layer insulating paper 3 with a thickness of 0.085-0.15mm, the first layer insulation The mass area ratio of paper 3 be 52-92g/m2, the second layer insulating paper 5 with a thickness of 0.085-0.15mm, the second layer The mass area ratio of insulating paper 5 is 52-92g/m2.
In some embodiments, the first layer insulating paper 3 and second layer insulating paper 5 are respectively that machine direction tensile strength is big It is more than or equal in being equal to 3kN/m, cross direction tensile strength more than or equal to 1.5kN/m, water extract pH value 6-8, electrical strength 8.5kV/mm and in 150 DEG C of oil after heat ageing 135h machine direction tensile strength retention rate be more than or equal to 80% high temperature insulation Paper.
A kind of its production method of the insulating paper of transformer, includes the following steps:
Step 1: raw material preparation: preparation first nanometer of film layer, nano protective film layer, film layer, insulating paper layer, middle film layer And adhesive；
Step 2: adhesive being coated on two surfaces of middle film layer, then absolutely by the first insulating paper layer and second Edge paper layer is laminating with the middle layer that is coated with adhesive respectively, is placed in oven-baked, and 70-85 DEG C of oven temperature, vacuum degree is 0.05-0.1MPa, baking time 1 minute；
Step 3: the another side of the first insulating paper layer and the second insulating paper layer after step 2 is applied with adhesive respectively It covers, the first film layer and the first insulating paper layer is fitted, nano protective film layer and the second insulating paper layer are fitted, be placed in baking Case bakes, and 75-95 DEG C of oven temperature, vacuum degree 0.05-0.1MPa, baking time 1 minute；
Step 4: coating adhesive for the another side of the first film layer after step 3, by first nanometer of film layer and coating There is the first film layer of adhesive mutually laminating, is placed in oven-baked, 75-95 DEG C of oven temperature, vacuum degree 0.05-0.1MPa, Baking time 30S；
Step 5: forming is wound after the insulating paper hot rolling roller hot rolling after baking, it is 85-100 that hot-rolled condition, which is in temperature, DEG C, under conditions of pressure is 15-30MPa, hot pressing 6-15min；The material of winding forming curing oven is sent into again bake admittedly Change, product solidification temperature is 65-80 DEG C, the time is 12 hours, and insulation paper product is made；
In some embodiments, the hot rolling number is 3 times, and time interval is 3 minutes.
In some embodiments, the epoxy resin compound is glycidyl ether type epoxy resin, glycidol Esters epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin or alicyclic based epoxy resin.
In some embodiments, the insulating paper prepared with a thickness of 0.25-0.99mm, dielectric strength 15-24Kv/ Mm, dielectric constant 3.6-6.
Compared with prior art, the beneficial effects of the present invention are: the 1, present invention passes through adhesive outside the second insulating paper layer Nano protective film layer is pasted in side, improves insulation performance, extends the aging speed of insulating paper, and increasing prevents electric current breakdown exhausted The ability of edge paper；2, insulating paper of the invention, properties of product are excellent: dielectric strength height, high temperature resistant, F grades (155 of temperature resistant grade DEG C), mechanical performance is excellent；3, insulating paper of the invention passes through setting；4, the present invention uses first nanometer of film layer 1, the first film layer 2, the setting that the first insulating paper layer 3, middle film layer 4, the second insulating paper layer 5, nano protective film layer 6 stack gradually, multilayered structure Setting, be suitable for transformer, can reduce the noise of transformer, when production can reduce the volume of iron core, save cost, simultaneously The effect of specific energy conservation and environmental protection, extends the service life of transformer.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein Specific examples are only used to explain the present invention, is not intended to limit the present invention.
Embodiment 1:
As shown in Figure 1, a kind of insulating paper of transformer, including first nanometer of film layer 1, the first film layer 2, the first insulating paper layer 3, middle film layer 4, the second insulating paper layer 5, nano protective film layer 6 are cascading, and are pasted between each layer using about 7 adhesive It closes, it is even closer, it ensure that the insulating paper insulation performance and security performance of for transformer.The adhesive is organosilicon The mixed proportion of the epoxy glue of adhesive and epoxy resin adhesive, the organosilicon adhesive and epoxy resin adhesive is 1: 6, the 6 material quality percentage of nano protective film layer are as follows: nanometer styrene 21%, nano-silicon nitride 16%, nano magnesia 12%, nano aluminium oxide 9%, nano zircite 10%, nano-titanium oxide 10%, epoxy resin 9%, are received nano zine oxide 8% Rice material dispersing agent 3%, surfactant 2%.The production method of first nanometer of film layer is consistent with nanometer protective layer.
In some embodiments, the material quality percentage of the organosilicon adhesive are as follows: acrylic ester compound 26%, organopolysiloxane 24%, isophthalic amine curing agent 20%, epoxy resin compound 16%, toughener 10%, ethylene Amines catalyst 4%；The material quality percentage of the epoxy resin adhesive are as follows: modified epoxy 32%, anhydride-cured Agent 24%, polyurethanes diluent 18%, acrylic acid ethers promotor 11%, adhesiveness increasing and modifying agent 9%, high-temperature stabilizer 6%.
In some embodiments, the ink layer by resin, auxiliary agent, fluorine-containing epoxy hardener, stabilizer, solvent, fill out Material composition.The ink layer weatherability, chemical resistance are good, and covering effect is good, and electrical insulation properties are good.Ensureing it Achieve the purpose that promote material at high temperature toughness, tear-proof, insulation impedance and adhesive force while appearance covering effect.
In some embodiments, the middle film layer film 4 is Kapton or polyester film or poly- four Fluoroethylene film, first film layer 2 are high temperature resistance polyester film layer, and first insulating paper layer 3 and the second insulating paper layer 5 are High-density polyethylene material or meta-aramid fibers material.
In some embodiments, the first layer insulating paper 3 with a thickness of 0.15mm, the first layer insulating paper 3 Mass area ratio is 92g/m2, the second layer insulating paper 5 with a thickness of 0.15mm, the unit of the second layer insulating paper 5 Area quality is 92g/m2.
A kind of its production method of the insulating paper of transformer, includes the following steps:
Step 1: raw material preparation: preparation first nanometer of film layer, nano protective film layer, film layer, insulating paper layer, middle film layer And adhesive；
Step 2: adhesive being coated on two surfaces of middle film layer, then absolutely by the first insulating paper layer and second Edge paper layer is laminating with the middle layer that is coated with adhesive respectively, is placed in oven-baked, and 85 DEG C of oven temperature, vacuum degree is 0.1MPa, baking time 1 minute；
Step 3: the another side of the first insulating paper layer and the second insulating paper layer after step 2 is applied with adhesive respectively It covers, the first film layer and the first insulating paper layer is fitted, nano protective film layer and the second insulating paper layer are fitted, be placed in baking Case bakes, and 95 DEG C of oven temperature, vacuum degree 0.1MPa, baking time 1 minute；
Step 4: coating adhesive for the another side of the first film layer after step 3, by first nanometer of film layer and coating There is the first film layer of adhesive mutually laminating, is placed in oven-baked, 95 DEG C of oven temperature, vacuum degree 0.1MPa, baking time 30S；Oven-baked is used three times, keeps insulating paper sufficiently heated, is reacted in advance, avoids insulating paper due to being heated suddenly, Internal uneven heating is even, leads to the surface irregularity of insulating paper, improves the production efficiency and qualification rate of transformer insulating paper. The another side of first nanometer of film layer is coated into adhesive, ink layer and the first film layer coated with adhesive is mutually laminating；
Step 5: winding forming after the insulating paper hot rolling roller hot rolling after baking, it is 100 DEG C that hot-rolled condition, which is in temperature, Under conditions of pressure is 30MPa, hot pressing 15min；The material of winding forming is sent into curing oven again and carries out baked and cured, product is solid Change temperature is 80 DEG C, the time is 12 hours, and insulation paper product is made；When insulating paper thickness after hot rolling is more than the upper deviation, carry out Hot pressing is repeated, keeps press temperature constant, increases the pressure of compacting, by increasing the pressure of compacting, to compress transformer in time Insulating paper reduces the generation of defect ware so that the thickness of transformer insulating paper reduces, and improves the production of transformer insulating paper Efficiency and qualification rate.
In some embodiments, the hot rolling number is 3 times, and time interval is 3 minutes.
In some embodiments, the epoxy resin compound is glycidyl ether type epoxy resin, glycidol Esters epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin or alicyclic based epoxy resin.
Embodiment two:
A kind of insulating paper of transformer, including first nanometer of film layer 1, the first film layer 2, the first insulating paper layer 3, middle film layer 4, the second insulating paper layer 5, nano protective film layer 6 are cascading, and are bonded between each layer using about 7 adhesive, are more stepped up It is close, it ensure that the insulating paper insulation performance and security performance of for transformer.The adhesive be organosilicon adhesive and The mixed proportion of the epoxy glue of epoxy resin adhesive, the organosilicon adhesive and epoxy resin adhesive is 1:6, described to receive Rice 6 material quality percentage of protective film layer are as follows: nanometer styrene 20%, nano-silicon nitride 15%, nano magnesia 11%, nanometer Aluminium oxide 9%, nano zircite 10%, nano zine oxide 9%, nano-titanium oxide 11%, epoxy resin 10%, nano material point Powder 3%, surfactant 2%.
In some embodiments, the material quality percentage of the organosilicon adhesive are as follows: acrylic ester compound 26%, organopolysiloxane 24%, isophthalic amine curing agent 20%, epoxy resin compound 16%, toughener 10%, ethylene Amines catalyst 4%；The material quality percentage of the epoxy resin adhesive are as follows: modified epoxy 32%, anhydride-cured Agent 24%, polyurethanes diluent 18%, acrylic acid ethers promotor 11%, adhesiveness increasing and modifying agent 9%, high-temperature stabilizer 6%.
In some embodiments, the middle film layer film 4 is Kapton or polyester film or poly- four Fluoroethylene film, first film layer 2 are high temperature resistance polyester film layer, and first insulating paper layer 3 and the second insulating paper layer 5 are High-density polyethylene material or meta-aramid fibers material.
In some embodiments, the first layer insulating paper 3 with a thickness of 0.1mm, the list of the first layer insulating paper 3 Position area quality be 72g/m2, the second layer insulating paper 5 with a thickness of 0.1mm, the unit area of the second layer insulating paper 5 Quality is 72g/m2.
A kind of its production method of the insulating paper of transformer, includes the following steps:
Step 1: raw material preparation: preparation first nanometer of film layer, nano protective film layer, film layer, insulating paper layer, middle film layer And adhesive；
Step 2: adhesive being coated on two surfaces of middle film layer, then absolutely by the first insulating paper layer and second Edge paper layer is laminating with the middle layer that is coated with adhesive respectively, is placed in oven-baked, and 80 DEG C of oven temperature, vacuum degree is 0.075MPa, baking time 1 minute；
Step 3: the another side of the first insulating paper layer and the second insulating paper layer after step 2 is applied with adhesive respectively It covers, the first film layer and the first insulating paper layer is fitted, nano protective film layer and the second insulating paper layer are fitted, be placed in baking Case bakes, and 85 DEG C of oven temperature, vacuum degree 0.075MPa, baking time 1 minute；
Step 4: coating adhesive for the another side of the first film layer after step 3, by first nanometer of film layer and coating There is the first film layer of adhesive mutually laminating, is placed in oven-baked, 85 DEG C of oven temperature, vacuum degree 0.075MPa, when baking Between 30S；Use oven-baked three times, keep insulating paper sufficiently heated, reacted in advance, avoid insulating paper due to suddenly by Heat, internal uneven heating is even, leads to the surface irregularity of insulating paper, improves the production efficiency and qualification of transformer insulating paper Rate.
Step 5: forming is wound after the insulating paper hot rolling roller hot rolling after baking, it is 92 DEG C that hot-rolled condition, which is in temperature, pressure Under conditions of power is 22MPa, hot pressing 10min；The material of winding forming is sent into curing oven again and carries out baked and cured, product solidification Temperature is 73 DEG C, the time is 12 hours, and insulation paper product is made；When insulating paper thickness after hot rolling is more than the upper deviation, weight is carried out Re-heat pressure keeps press temperature constant, increases the pressure of compacting, by increasing the pressure of compacting, comes in time that compress transformer exhausted Edge paper reduces the generation of defect ware so that the thickness of transformer insulating paper reduces, and improves the production effect of transformer insulating paper Rate and qualification rate.
In some embodiments, the hot rolling number is 3 times, and time interval is 3 minutes.
In some embodiments, the epoxy resin compound is glycidyl ether type epoxy resin, glycidol Esters epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin or alicyclic based epoxy resin.
Embodiment three:
A kind of insulating paper of transformer, including first nanometer of film layer 1, the first film layer 2, the first insulating paper layer 3, middle film layer 4, the second insulating paper layer 5, nano protective film layer 6 are cascading, and are bonded between each layer using about 7 adhesive, are more stepped up It is close, it ensure that the insulating paper insulation performance and security performance of for transformer.The adhesive be organosilicon adhesive and The mixed proportion of the epoxy glue of epoxy resin adhesive, the organosilicon adhesive and epoxy resin adhesive is 1:6, described to receive Rice 6 material quality percentage of protective film layer are as follows: nanometer styrene 19%, nano-silicon nitride 14%, nano magnesia 11%, nanometer Aluminium oxide 8%, nano zircite 11%, nano zine oxide 11%, nano-titanium oxide 12%, epoxy resin 9%, nano material point Powder 3%, surfactant 2%.
In some embodiments, the material quality percentage of the organosilicon adhesive are as follows: acrylic ester compound 26%, organopolysiloxane 24%, isophthalic amine curing agent 20%, epoxy resin compound 16%, toughener 10%, ethylene Amines catalyst 4%；The material quality percentage of the epoxy resin adhesive are as follows: modified epoxy 32%, anhydride-cured Agent 24%, polyurethanes diluent 18%, acrylic acid ethers promotor 11%, adhesiveness increasing and modifying agent 9%, high-temperature stabilizer 6%.
In some embodiments, the ink layer by resin, auxiliary agent, fluorine-containing epoxy hardener, stabilizer, solvent, fill out Material composition.
In some embodiments, the middle film layer film 4 is Kapton or polyester film or poly- four Fluoroethylene film, first film layer 2 are high temperature resistance polyester film layer, and first insulating paper layer 3 and the second insulating paper layer 5 are High-density polyethylene material or meta-aramid fibers material.
In some embodiments, the first layer insulating paper 3 with a thickness of 0.085mm, the first layer insulating paper 3 Mass area ratio is 52g/m2, the second layer insulating paper 5 with a thickness of 0.085mm, the unit of the second layer insulating paper 5 Area quality is 52g/m2.
A kind of its production method of the insulating paper of transformer, includes the following steps:
Step 1: raw material preparation: preparation first nanometer of film layer, nano protective film layer, film layer, insulating paper layer, middle film layer And adhesive；
Step 2: adhesive being coated on two surfaces of middle film layer, then absolutely by the first insulating paper layer and second Edge paper layer is laminating with the middle layer that is coated with adhesive respectively, is placed in oven-baked, and 70 DEG C of oven temperature, vacuum degree is 0.05MPa, baking time 1 minute；
Step 3: the another side of the first insulating paper layer and the second insulating paper layer after step 2 is applied with adhesive respectively It covers, the first film layer and the first insulating paper layer is fitted, nano protective film layer and the second insulating paper layer are fitted, be placed in baking Case bakes, and 75 DEG C of oven temperature, vacuum degree 0.05MPa, baking time 1 minute；
Step 4: coating adhesive for the another side of the first film layer after step 3, by first nanometer of film layer and coating There is the first film layer of adhesive mutually laminating, is placed in oven-baked, 75 DEG C of oven temperature, vacuum degree 0.05MPa, baking time 30S；Oven-baked is used three times, keeps insulating paper sufficiently heated, is reacted in advance, avoids insulating paper due to being heated suddenly, Internal uneven heating is even, leads to the surface irregularity of insulating paper, improves the production efficiency and qualification rate of transformer insulating paper.
Step 5: forming is wound after the insulating paper hot rolling roller hot rolling after baking, it is 85 DEG C that hot-rolled condition, which is in temperature, pressure Under conditions of power is 15MPa, hot pressing 6min；The material of winding forming is sent into curing oven again and carries out baked and cured, product solidification Temperature is 65 DEG C, the time is 12 hours, and insulation paper product is made；When insulating paper thickness after hot rolling is more than the upper deviation, weight is carried out Re-heat pressure keeps press temperature constant, increases the pressure of compacting, by increasing the pressure of compacting, comes in time that compress transformer exhausted Edge paper reduces the generation of defect ware so that the thickness of transformer insulating paper reduces, and improves the production effect of transformer insulating paper Rate and qualification rate.
In some embodiments, the hot rolling number is 3 times, and time interval is 3 minutes.
In some embodiments, the epoxy resin compound is glycidyl ether type epoxy resin, glycidol Esters epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin or alicyclic based epoxy resin.
Comparative example 1:
With embodiment 1, difference, which is only that, replaces with commercially available epoxide-resin glue for adhesive.
Comparative example 2:
With embodiment 1, difference, which is only that, replaces with commercially available PU glue for adhesive.
Comparative example 3:
With embodiment 1, difference is only that hot rolling number is 2 times.
Comparative example 4:
With embodiment 1, difference is only that hot rolling number is 1 time.
Above-described embodiment and comparative example are carried out to the test of following performance, test result is as shown in Table 1.
Table one
From table 1 the result shows that, the performance of embodiment is substantially better than comparative example, illustrates that insulating paper provided by the invention has Good service performance.
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not office Be limited to form disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification and Environment, and can be changed within that scope of the inventive concept describe herein by the above teachings or related fields of technology or knowledge It is dynamic.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be appended by the present invention In scope of protection of the claims.

Claims (10)

1. a kind of insulating paper of transformer, it is characterised in that: including first nanometer of film layer (1), the first film layer (2), the first insulation Paper layer (3), middle film layer (4), the second insulating paper layer (5), nano protective film layer (6) are cascading, and use between each layer Adhesive (7) is bonded up and down, and the adhesive is the epoxy glue of organosilicon adhesive and epoxy resin adhesive, the organosilicon The mixed proportion of adhesive and epoxy resin adhesive is 1:6, nano protective film layer (6) the material quality percentage are as follows: receive Rice styrene 21-19%, nano-silicon nitride 16-14%, nano magnesia 12-11%, nano aluminium oxide 9-8%, it is nano oxidized Zirconium 11-10%, nano zine oxide 11-8%, nano-titanium oxide 12-10%, epoxy resin 10-8%, nano material dispersing agent 3%, surfactant 2%.
2. a kind of insulating paper of transformer according to claim 1, it is characterised in that: the raw material matter of the organosilicon adhesive Measure percentage are as follows: acrylic ester compound 26%, organopolysiloxane 24%, isophthalic amine curing agent 20%, epoxy resin Class compound 16%, toughener 10%, ethylene amines catalyst 4%；The material quality percentage of the epoxy resin adhesive Are as follows: modified epoxy 32%, anhydride curing agent 24%, polyurethanes diluent 18%, acrylic acid ethers promotor 11% increase Adhered modification agent 9%, high-temperature stabilizer 6%.
3. a kind of insulating paper of transformer according to claim 1, it is characterised in that: the production side of first nanometer of film layer Method is consistent with nanometer protective layer.
4. a kind of insulating paper of transformer according to claim 1, it is characterised in that: the middle film layer film (4) is poly- Imide membrane or polyester film or polytetrafluoroethylene film, first film layer (2) are high temperature resistance polyester film layer, institute It states the first insulating paper layer (3) and the second insulating paper layer (5) is high-density polyethylene material or meta-aramid fibers material.
5. a kind of insulating paper of transformer according to claim 1, it is characterised in that: the thickness of the first layer insulating paper (3) Degree is 0.085-0.15mm, and the mass area ratio of the first layer insulating paper (3) is 52-92g/m2, the second layer insulation Paper (5) with a thickness of 0.085-0.15mm, the mass area ratio of the second layer insulating paper (5) is 52-92g/m2.
6. a kind of insulating paper of transformer according to claim 1, it is characterised in that: the first layer insulating paper (3) and Two layers of insulating paper (5) are respectively that machine direction tensile strength is more than or equal to 3kN/m, cross direction tensile strength is more than or equal to 1.5kN/m, water is taken out Extract pH value 6-8, electrical strength are more than or equal to 8.5kV/mm and the machine direction tensile strength after heat ageing 135h in 150 DEG C of oil Retention rate is more than or equal to 80% high temperature insulation paper.
7. a kind of its production method of the insulating paper of transformer as described in claim 1, characterized by the following steps:
Step 1: raw material preparation: preparation first nanometer of film layer, nano protective film layer, film layer, insulating paper layer, middle film layer and Adhesive；
Step 2: adhesive is coated on two surfaces of middle film layer, then by the first insulating paper layer and the second insulating paper Layer is laminating with the middle layer that is coated with adhesive respectively, is placed in oven-baked, and 70-85 DEG C of oven temperature, vacuum degree 0.05- 0.1MPa, baking time 1 minute；
Step 3: the another side of the first insulating paper layer and the second insulating paper layer after step 2 is coated with adhesive respectively, First film layer and the first insulating paper layer are fitted, nano protective film layer and the second insulating paper layer are fitted, baking oven is placed in It bakes, 75-95 DEG C of oven temperature, vacuum degree 0.05-0.1MPa, baking time 1 minute；
Step 4: coating adhesive for the another side of the first film layer after step 3, by first nanometer of film layer and is coated with glue First film layer of glutinous agent is mutually laminating, is placed in oven-baked, 75-95 DEG C of oven temperature, vacuum degree 0.05-0.1MPa, bakes Time 30S；
Step 5: forming is wound after the insulating paper hot rolling roller hot rolling after baking, it is 85-100 DEG C that hot-rolled condition, which is in temperature, pressure Under conditions of power is 15-30MPa, hot pressing 6-15min；The material of winding forming is sent into curing oven again and carries out baked and cured, is produced Product solidification temperature is 65-80 DEG C, the time is 12 hours, and insulation paper product is made.
8. a kind of insulating paper of transformer according to claim 7, it is characterised in that: the hot rolling number is 3 times, between the time It is divided into 3 minutes.
9. a kind of insulating paper of transformer according to claim 2, it is characterised in that: the epoxy resin compound is contracting Water glycerol ether type epoxy resins, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic class epoxy Resin or alicyclic based epoxy resin.
10. a kind of insulating paper of transformer according to claim 1, it is characterised in that: the insulating paper prepared with a thickness of 0.55-0.99mm, dielectric strength 15-24Kv/mm, dielectric constant 3.6-6.
CN201910423467.XA 2019-05-21 2019-05-21 A kind of insulating paper of transformer Pending CN110154485A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113584948A (en) * 2021-05-28 2021-11-02 广西大学 Preparation method of low-dielectric-constant insulating paper based on nano MgO modification

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CN103642413A (en) * 2013-10-17 2014-03-19 昆山韩保胶带科技有限公司 High-temperature-resistant insulating paper adhesive tape
CN206521650U (en) * 2016-11-21 2017-09-26 盐城爱达斯绝缘材料有限公司 A kind of two-sided Composite aramid fiber paper
CN107541181A (en) * 2017-09-05 2018-01-05 复旦大学 A kind of color inhibition organosilicon adhesive and preparation method thereof
CN107901556A (en) * 2017-11-03 2018-04-13 苏州巨峰电气绝缘***股份有限公司 It is a kind of to be suitable for wind-powered electricity generation and the dispensing insulating paper of solar energy transformer and its application
CN108305765A (en) * 2018-01-24 2018-07-20 江苏源通电气有限公司 A kind of dry-type power transformer with high heat dispersion

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CN103642413A (en) * 2013-10-17 2014-03-19 昆山韩保胶带科技有限公司 High-temperature-resistant insulating paper adhesive tape
CN206521650U (en) * 2016-11-21 2017-09-26 盐城爱达斯绝缘材料有限公司 A kind of two-sided Composite aramid fiber paper
CN107541181A (en) * 2017-09-05 2018-01-05 复旦大学 A kind of color inhibition organosilicon adhesive and preparation method thereof
CN107901556A (en) * 2017-11-03 2018-04-13 苏州巨峰电气绝缘***股份有限公司 It is a kind of to be suitable for wind-powered electricity generation and the dispensing insulating paper of solar energy transformer and its application
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113584948A (en) * 2021-05-28 2021-11-02 广西大学 Preparation method of low-dielectric-constant insulating paper based on nano MgO modification
CN113584948B (en) * 2021-05-28 2022-12-13 广西大学 Preparation method of low-dielectric-constant insulating paper based on nano MgO modification

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