CN105350392A - Low-loss transformer insulation paper - Google Patents

Low-loss transformer insulation paper Download PDF

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Publication number
CN105350392A
CN105350392A CN201510739426.3A CN201510739426A CN105350392A CN 105350392 A CN105350392 A CN 105350392A CN 201510739426 A CN201510739426 A CN 201510739426A CN 105350392 A CN105350392 A CN 105350392A
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China
Prior art keywords
deionized water
mica
silane coupler
epoxy resin
low
Prior art date
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CN201510739426.3A
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Chinese (zh)
Inventor
李新满
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.)
Tongling Sanjia Transformer Co Ltd
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Tongling Sanjia Transformer Co Ltd
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Priority to CN201510739426.3A priority Critical patent/CN105350392A/en
Publication of CN105350392A publication Critical patent/CN105350392A/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10—Composite fibres
    • D21H15/12—Composite fibres partly organic, partly inorganic
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/28—Organic non-cellulose fibres from natural polymers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/44—Flakes, e.g. mica, vermiculite
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/07—Nitrogen-containing compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/52—Epoxy resins
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/53—Polyethers; Polyesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/34—Ignifugeants
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/38—Corrosion-inhibiting agents or anti-oxidants
    • 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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/52—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials wood; paper; press board
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)

Abstract

The invention discloses a low-loss transformer insulation paper, which is prepared from the following raw materials by weight part: 0.6-0.7 of a silane coupling agent kh550, 6-8 of mica, 1-1.5 of glycine, 0.3-0.4 of a silane coupling agent kh570, 0.1-0.2 of an emulsifier OP-10, 0.2-0.3 of sodium dodecyl sulfate, 2-3 of E44 epoxy resin, 0.2-0.3 of sodium tripolyphosphate, 500-550 of a pulp board, 0.7-0.9 of fly ash, 0.5-0.7 of polylysine, 2.1-2.5 of lignin fiber, 0.6-0.8 of cellulose ether, 1.2-1.6 of hydroxyapatite, and a proper amount of deionized water. The low-loss transformer insulation paper provided by the invention has simple preparation method, also has good corrosion resistance, high toughness and stability, low loss, and excellent performance, and can have good application prospect in transformers.

Description

A kind of low-loss layer insulating paper
Technical field
The present invention relates to transformer technology field, particularly relate to a kind of low-loss layer insulating paper.
Background technology
In recent years, along with China's electric power, electrically, the fast development of the industry such as electronics, household electrical appliances and communication, the requirement of people to transformer is more and more higher.Cellulose insulation paper is one of most widely used interior insulating materials in oil-immersed power transformer, and because run duration cannot be changed, the quality of its machinery and insulating properties directly decides the service life of transformer.In real transformer, insulating paper is subject to the effect of high electrical-field stressing for a long time, will cause transformer fault once puncture.If promote the electric property of insulating paper, just can save the use amount of insulating paper, extend the working life of insulating paper, reduce the width of transformer oil clearance, and then the volume of limiting transformer and core loss, therefore, the study on the modification carrying out insulating paper is significant.Mica is indispensable insulating materials in electric and electronic industry.At present, although there is a lot of new material in the world, wherein also do not have a kind of insulating materials can replace mica completely.Utilize mica to carry out modification insulating paper and can obtain the more excellent insulating paper of performance, but the domestic and international research for this respect is little at present.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of low-loss layer insulating paper.
The present invention is achieved by the following technical solutions:
A kind of low-loss layer insulating paper, is made up of the raw material of following weight portion: silane coupler kh5500.6-0.7, mica 6-8, glycine 1-1.5, silane coupler kh5700.3-0.4, emulsifier op-10 0.1-0.2, dodecyl sodium sulfate 0.2-0.3, E44 epoxy resin 2-3, sodium phosphate trimer 0.2-0.3, pulpboard 500-550, flyash 0.7-0.9, polylysine 0.5-0.7, lignin fibre 2.1-2.5, cellulose ether 0.6-0.8, hydroxyapatite 1.2-1.6, deionized water are appropriate.
The low-loss layer insulating paper of described one, be made up of following concrete steps:
(1) silane coupler kh550 is joined ethanol with quality than in the solution for 1:1, heating water bath to 35 ° C, dripping ethanedioic acid regulates pH value to be 4, hydrolysis 1-1.5h, mica sheet is impregnated in the ethanol of 75% to stir and soaks 1-2h, then supersound washing 10-15min, then soak 0.5h with deionized water, finally be placed in baking oven dry 2h under 110 ° of C, grind for subsequent use;
(2) mica of above-mentioned preparation is added in the hydrolyzate of silane coupler kh550, bath temperature controls at 60-65 ° of C, then flyash and lignin fibre ultrasonic agitation 30-45min is added, filter, spend deionized water for several times, in constant temperature blast drying oven, under 90 ° of C, dry 2-3h is for subsequent use afterwards;
(3) glycine is added in flask with after the water-soluble solution of 13 times amount with silane coupler kh570, emulsifier op-10, dodecyl sodium sulfate and E44 epoxy resin, control bath temperature and slowly stir 3h under 80-85 ° of C, add polylysine and hydroxyapatite continuation stirring 10-15min again, then adding sodium hydroxide solution regulates pH value in neutral, again with high-shearing dispersion emulsifying machine by its emulsification, obtain stable modified aqueous epoxy resin emulsion;
(4) modified aqueous epoxy resin emulsion, cellulose ether and sodium phosphate trimer mixing prepared by modified micaceous, the step (3) step (2) prepared, add appropriate deionized water again and be diluted to the slurry of mass concentration at 0.5-0.6%, pull an oar after pulpboard is soaked, making beating is stopped when beating degree is 40-45 ° of SR, then slurry is put into fiber dissociation device, adding deionized water makes the concentration of slurry dissociate at 2-2.5%, obtains paper pulp turbid liquid for subsequent use;
(5) by paper pulp turbid liquid and the mixing of mica slurry, with electric power stirring rod strong stirring 10min, then continue the 15min that dissociates, carry out afterwards manufacturing paper with pulp, drying and can obtain insulating paper.
Advantage of the present invention is: the present invention adopts silane coupler kh550 to carry out surface modification to mica, strengthen overseas Chinese federation's effect of mica surface, the compatibility of the aqueous epoxy resin emulsion of improvement and modification, improve the adhesive force to mica surface, its adhesion and dispersing uniformity can be greatly improved with cellulose pulp mixing, enhance the TENSILE STRENGTH of insulating paper, dielectric strength, the effect such as electric property and heat resistance, the flyash added and lignin fibre can improve the toughness of insulating paper, corrosion resistance, the effects such as stability, the polylysine added and hydroxyapatite can improve the corrosion-resistant of insulating paper, the performance such as wear-resisting and antibacterial, preparation method of the present invention is simple, have good corrosion-resistant, high-ductility, stability and low loss factor, function admirable, for having a good application prospect in transformer.
Detailed description of the invention
A kind of low-loss layer insulating paper, is made up of the raw material of following weight portion (kilogram): silane coupler kh5500.6, mica 6, glycine 1, silane coupler kh5700.3, polyoxyethylene nonylphenol ether, dodecyl sodium sulfate 0.2, E44 epoxy resin 2, sodium phosphate trimer 0.2, pulpboard 500, flyash 0.7, polylysine 0.5, lignin fibre 2.1, cellulose ether 0.6, hydroxyapatite 1.2, deionized water are appropriate.
The low-loss layer insulating paper of described one, be made up of following concrete steps:
(1) silane coupler kh550 is joined ethanol with quality than in the solution for 1:1, heating water bath to 35 ° C, dripping ethanedioic acid regulates pH value to be 4, hydrolysis 1h, mica sheet is impregnated in the ethanol of 75% to stir and soaks 1h, then supersound washing 10min, then soak 0.5h with deionized water, finally be placed in baking oven dry 2h under 110 ° of C, grind for subsequent use;
(2) mica of above-mentioned preparation is added in the hydrolyzate of silane coupler kh550, bath temperature controls, at 60 ° of C, then to add flyash and lignin fibre ultrasonic agitation 30min, filters, spend deionized water for several times, in constant temperature blast drying oven, under 90 ° of C, dry 2h is for subsequent use afterwards;
(3) glycine is added in flask with after the water-soluble solution of 13 times amount with silane coupler kh570, polyoxyethylene nonylphenol ether, dodecyl sodium sulfate and E44 epoxy resin, control bath temperature and slowly stir 3h under 80 ° of C, add polylysine and hydroxyapatite continuation stirring 10min again, then adding sodium hydroxide solution regulates pH value in neutral, again with high-shearing dispersion emulsifying machine by its emulsification, obtain stable modified aqueous epoxy resin emulsion;
(4) modified aqueous epoxy resin emulsion, cellulose ether and sodium phosphate trimer mixing prepared by modified micaceous, the step (3) step (2) prepared, add again appropriate deionized water be diluted to mass concentration 0.5% slurry, pull an oar after pulpboard is soaked, making beating is stopped when beating degree is 40 ° of SR, then slurry is put into fiber dissociation device, adding deionized water makes the concentration of slurry dissociate 2%, obtains paper pulp turbid liquid for subsequent use;
(5) by paper pulp turbid liquid and the mixing of mica slurry, with electric power stirring rod strong stirring 10min, then continue the 15min that dissociates, carry out afterwards manufacturing paper with pulp, drying and can obtain insulating paper.
Its performance test of the insulating paper prepared according to the present embodiment is as follows: breakdown voltage is 4KV, dielectric strength is 38KV/mm, the fire-retardant rank of insulating paper is V0 level, paper whiteness>=80%, dry tensile strength is 4.3KN/m, wet tensile (strength) is 0.41KN/m, suction head 52mm, air permeability is 20 ± 4s, and specific insulation is 1.2 × 10 6, sheet resistance is 4.0 × 10 4, dielectric constant is 5.2, and dielectric dissipation factor is 0.042.

Claims (2)

1. a low-loss layer insulating paper, it is characterized in that, be made up of the raw material of following weight portion: silane coupler kh5500.6-0.7, mica 6-8, glycine 1-1.5, silane coupler kh5700.3-0.4, emulsifier op-10 0.1-0.2, dodecyl sodium sulfate 0.2-0.3, E44 epoxy resin 2-3, sodium phosphate trimer 0.2-0.3, pulpboard 500-550, flyash 0.7-0.9, polylysine 0.5-0.7, lignin fibre 2.1-2.5, cellulose ether 0.6-0.8, hydroxyapatite 1.2-1.6, deionized water are appropriate.
2. a kind of low-loss layer insulating paper according to claim 1, is characterized in that, be made up of following concrete steps:
(1) silane coupler kh550 is joined ethanol with quality than in the solution for 1:1, heating water bath to 35 ° C, dripping ethanedioic acid regulates pH value to be 4, hydrolysis 1-1.5h, mica sheet is impregnated in the ethanol of 75% to stir and soaks 1-2h, then supersound washing 10-15min, then soak 0.5h with deionized water, finally be placed in baking oven dry 2h under 110 ° of C, grind for subsequent use;
(2) mica of above-mentioned preparation is added in the hydrolyzate of silane coupler kh550, bath temperature controls at 60-65 ° of C, then flyash and lignin fibre ultrasonic agitation 30-45min is added, filter, spend deionized water for several times, in constant temperature blast drying oven, under 90 ° of C, dry 2-3h is for subsequent use afterwards;
(3) glycine is added in flask with after the water-soluble solution of 13 times amount with silane coupler kh570, emulsifier op-10, dodecyl sodium sulfate and E44 epoxy resin, control bath temperature and slowly stir 3h under 80-85 ° of C, add polylysine and hydroxyapatite continuation stirring 10-15min again, then adding sodium hydroxide solution regulates pH value in neutral, again with high-shearing dispersion emulsifying machine by its emulsification, obtain stable modified aqueous epoxy resin emulsion;
(4) modified aqueous epoxy resin emulsion, cellulose ether and sodium phosphate trimer mixing prepared by modified micaceous, the step (3) step (2) prepared, add appropriate deionized water again and be diluted to the slurry of mass concentration at 0.5-0.6%, pull an oar after pulpboard is soaked, making beating is stopped when beating degree is 40-45 ° of SR, then slurry is put into fiber dissociation device, adding deionized water makes the concentration of slurry dissociate at 2-2.5%, obtains paper pulp turbid liquid for subsequent use;
(5) by paper pulp turbid liquid and the mixing of mica slurry, with electric power stirring rod strong stirring 10min, then continue the 15min that dissociates, carry out afterwards manufacturing paper with pulp, drying and can obtain insulating paper.
CN201510739426.3A 2015-11-04 2015-11-04 Low-loss transformer insulation paper Pending CN105350392A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103260869A (en) * 2010-12-17 2013-08-21 3M创新有限公司 Electrical insulation material
CN103843070A (en) * 2011-08-03 2014-06-04 纳幕尔杜邦公司 Laminates useful for electrical insulation
CN104334797A (en) * 2012-04-27 2015-02-04 帕孔有限两合公司 Electrical insulating paper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103260869A (en) * 2010-12-17 2013-08-21 3M创新有限公司 Electrical insulation material
CN103843070A (en) * 2011-08-03 2014-06-04 纳幕尔杜邦公司 Laminates useful for electrical insulation
CN104334797A (en) * 2012-04-27 2015-02-04 帕孔有限两合公司 Electrical insulating paper

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
孙晓谦等: "《俄罗斯旅游概论》", 30 November 2015, 黑龙江人民出版社 *
李忠良: "变质片麻岩云母纸及芳纶纤维云母纸", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *

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