CN105714608A - Method for preparing insulating paper for high-overload transformers - Google Patents
Method for preparing insulating paper for high-overload transformers Download PDFInfo
- Publication number
- CN105714608A CN105714608A CN201610048697.9A CN201610048697A CN105714608A CN 105714608 A CN105714608 A CN 105714608A CN 201610048697 A CN201610048697 A CN 201610048697A CN 105714608 A CN105714608 A CN 105714608A
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- China
- Prior art keywords
- insulating paper
- paper
- preparation
- layer insulating
- high overload
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Classifications
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- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
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- 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
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J163/04—Epoxynovolacs
-
- 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
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- 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
- D21H17/56—Polyamines; Polyimines; Polyester-imides
-
- 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
- Organic Insulating Materials (AREA)
- Paper (AREA)
Abstract
The invention discloses a method for preparing insulating paper for high-overload transformers. The method includes technological steps of (1), preparing the insulating paper, to be more specific, treating high-purity insulating wood pulp fibers by the aid of amine stabilizers in pulping procedures and manufacturing the insulating paper with pulp of the high-purity wood pulp fibers; (2), picking materials, feeding the materials in machines, licking up the paper, applying adhesive to the paper, drying the paper, cooling the paper, applying adhesive to the paper, drying the paper, humidifying the paper, cooling the paper and rolling the paper. The method has the advantages that the method is simple, and the insulating paper for the high-overload transformers can be efficiently prepared by the aid of the method.
Description
Technical field
The disclosure relates generally to insulating paper preparation field, particularly to the preparation method of high overload layer insulating paper.
Background technology
High overload oil-filled transformer is to be set up the project by net rural power portion of state, China's DianKeYuan carries out the Novel electric depressor researched and developed, wherein in insulant, original employing high density point gummed paper, when transformer load is significantly increased, transformer overload scaling loss easily occurs, and has the situation of low voltage to occur.
Later, there is the NOMEX paper that research institution adopts Dupont to produce as layer insulation, because material surface is smooth；Manufacture difficulty is big, and production cost is high, and the later stage reclaims difficulty and is unfavorable for that environmental protection is eliminated gradually.
Through the retrieval to prior art, 200810045837.2 1 kinds of diamond dotted glue composite dielectric papers of application number, is characterized in that: by laminated polyester film, form with the F level adhering polyurethane adhesive electric insulation nonwoven polyester fabric layer in laminated polyester film upper and lower surface and the modified epoxy that is coated on each electric insulation nonwoven polyester fabric layer surface in form diamond checks.The preparation method of this diamond dotted glue composite dielectric paper, including preparing 3-layer composite material and preparing the steps such as diamond dotted glue composite dielectric paper.Adopting the present invention, properties of product are excellent, and production technology is simple, can save the manufacturing cost of oil-immersed power transformer, improve quality；Product of the present invention is particularly well-suited to oil-immersed power transformer Foil winding coil and makes layer insulation, turn-to-turn insulation and transformer and make the insulant of turn-to-turn insulation；Application number 201210508791.X discloses insulating paper technical field, including the mylar become by Modified polyester chips biaxial tension, described mylar is coated with one layer of form diamond checks glue-line, and described form diamond checks glue-line is epoxide-resin glue；Owing to mylar has excellent mechanical performance, machinability and has good electrical insulating property；Epoxide-resin glue has the adhesive strength of excellence simultaneously, and dielectric properties are good, good stability of the dimension, and hardness is high, and pliability is good, but mylar thermostability and breakdown voltage are poor, affects its service life.
Summary of the invention
In view of drawbacks described above of the prior art or deficiency, the preparation method that the present invention provides a kind of high overload layer insulating paper, comprise the following steps that:
(1) prepare insulating paper, in high-purity insulation pulps fiber pulping process, first add amines stabilizer process, then undertaken manufacturing paper with pulp preparing insulating paper by high-purity wood pulp cellulose level；
(2) preparation method of high overload layer insulating paper, comprises the following steps that: machine → paper injection → gluing → drying → cooling → gluing → drying → humidification → cooling → rolling on neck material → material.
Preferably, in described step one, the addition of amines stabilizer is 0.5%-5%.
Preferably, described amines stabilizer is selected from tripolycyanamide, cyanamid dimerization, one or more in polyacrylamide.
Preferably, in described glue groove, the glue of absorption is modified epoxy, and it comprises following components: novolac epoxy resin, flexible-epoxy, polyglycols 2-glycidyl ether resin, dicyandiamide, DADPS, accelerator.
Preferably, the preferred ingredient proportioning of described modified epoxy is made up of following components according to weight portion:
Novolac epoxy resin 60,
Flexible-epoxy 10,
Polyglycols 2-glycidyl ether resin 10,
Dicyandiamide 10,
DADPS 5,
Accelerator 5.
Preferably, the shape of described upper glue layer can be rhombus, circle, square.
The present invention can realize following beneficial effect, and the preparation method of the present invention is simple, it is possible to prepares high overload layer insulating paper efficiently.
Detailed description of the invention
Below in conjunction with embodiment, the application is described in further detail.It is understood that specific embodiment described herein is used only for explaining related invention, but not the restriction to this invention.It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Embodiment 1
The present embodiment provides composition and the preparation method of high overload layer insulating paper
The base paper of high overload layer insulating paper is prepared from through the tripolycyanamide process adding 3% by high-purity insulation pulps fiber, and processing technique is: machine → paper injection → gluing → drying → cooling → gluing → drying → humidification → cooling → rolling on neck material → material.
Consisting of of upper glue material: modified epoxy is by novolac epoxy resin 50 parts, flexible-epoxy 5 parts, polyglycols 2-glycidyl ether resin 5 parts, dicyandiamide 5 parts, DADPS 2 parts, accelerator 2 parts composition.
Embodiment 2
The base paper of high overload layer insulating paper is prepared from through the cyanamid dimerization process adding 2% by high-purity insulation pulps fiber, and processing technique is: machine → paper injection → gluing → drying → cooling → gluing → drying → humidification → cooling → rolling on neck material → material.
Modified epoxy is by novolac epoxy resin 60 parts, flexible-epoxy 10 parts, polyglycols 2-glycidyl ether resin 10 parts, dicyandiamide 10 parts, DADPS 8 parts, accelerator 6 parts composition.
Embodiment 3
The base paper of high overload layer insulating paper is prepared from through the polyacrylamide process adding 5% by high-purity insulation pulps fiber, and processing technique is: machine → paper injection → gluing → drying → cooling → gluing → drying → humidification → cooling → rolling on neck material → material.
Modified epoxy is by novolac epoxy resin 70 parts, flexible-epoxy 20 parts, polyglycols 2-glycidyl ether resin 20 parts, dicyandiamide 20 parts, DADPS 10 parts, accelerator 8 parts composition.
Embodiment 4
The base paper of high overload layer insulating paper is formed through the polyacrylamide process adding 1% tripolycyanamide and 1% by high-purity insulation pulps fiber, and processing technique is: machine → paper injection → gluing → drying → cooling → gluing → drying → humidification → cooling → rolling on neck material → material.
Modified epoxy is by novolac epoxy resin 60 parts, flexible-epoxy 10 parts, polyglycols 2-glycidyl ether resin 10 parts, dicyandiamide 10 parts, DADPS 10 parts, accelerator 8 parts composition.
Implementation result:
With base material thickness 0.18mm, upper glue layer thickness 10 μm is example, can realize following effect with embodiment 1-4 for embodiment.
Table 1 implementation result
As can be seen from Table 1, high overload layer insulating paper prepared by embodiment of the present invention 1-4 can reach good electric property and mechanical strength, in adhesion strength, the adhesion strength of the insulating paper of embodiment 2 preparation can reach 454kpa when 100 DEG C, breakdown voltage can reach 10.4kv in oil, there is good insulation effect, this is because after using amines stabilizer to process paper pulp, the base paper of preparation can have good insulating properties, and after using modified epoxy to carry out gluing, during use, upper glue layer starts fusing in coil dry run when uniform temperature, produce adhesive attraction, along with the rising of temperature starts again to solidify, the neighboring layers making Transformer Winding is reliably bonded into a fixing unit, the bonding strength of epoxy resin is owing to the coating of insulating paper is point-like, ensure that the discharge of gas in the immersion of oil and insulant, it is effectively prevented from corona drawn game to put, thus ensure that the safety of insulation system, reliably.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Skilled artisan would appreciate that, invention scope involved in the application, it is not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, when also should be encompassed in without departing from described inventive concept simultaneously, other technical scheme being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed.Such as features described above and (but not limited to) disclosed herein have the technical characteristic of similar functions and replace mutually and the technical scheme that formed.
Claims (6)
1. the preparation method of high overload layer insulating paper, it is characterised in that comprise the following steps that:
(1) prepare insulating paper, in high-purity insulation pulps fiber pulping process, first add amines stabilizer process, then undertaken manufacturing paper with pulp preparing insulating paper by high-purity wood pulp cellulose level；
(2) machine → paper injection → gluing → drying → cooling → gluing → drying → humidification → cooling → rolling on neck material → material.
2. the preparation method of high overload layer insulating paper according to claim 1, it is characterised in that in described step one, the addition of amines stabilizer is 0.5%-5%.
3. the preparation method of high overload layer insulating paper according to claim 1, it is characterised in that amines stabilizer is selected from tripolycyanamide, cyanamid dimerization, one or more in polyacrylamide.
4. the preparation method of high overload layer insulating paper according to claim 1, it is characterized in that, in described glue groove, the glue of absorption is modified epoxy, it comprises following components: novolac epoxy resin, flexible-epoxy, polyglycols 2-glycidyl ether resin, dicyandiamide, DADPS, accelerator.
5. the preparation method of high overload layer insulating paper according to claim 4, it is characterised in that the preferred ingredient proportioning of described modified epoxy is made up of following components according to weight portion:
Novolac epoxy resin 60,
Flexible-epoxy 10,
Polyglycols 2-glycidyl ether resin 10,
Dicyandiamide 10,
DADPS 5,
Accelerator 5.
6. the preparation method of high overload layer insulating paper according to claim 1, it is characterised in that the shape of described upper glue layer can be rhombus, circle, square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048697.9A CN105714608A (en) | 2016-01-25 | 2016-01-25 | Method for preparing insulating paper for high-overload transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048697.9A CN105714608A (en) | 2016-01-25 | 2016-01-25 | Method for preparing insulating paper for high-overload transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105714608A true CN105714608A (en) | 2016-06-29 |
Family
ID=56154872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610048697.9A Pending CN105714608A (en) | 2016-01-25 | 2016-01-25 | Method for preparing insulating paper for high-overload transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105714608A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779152A (en) * | 2017-11-09 | 2018-03-09 | 瑞安复合材料(深圳)有限公司 | Pre- impregnation composition epoxy resin, diamond dotted insulating paper and their preparation method |
| CN107988842A (en) * | 2016-10-27 | 2018-05-04 | 中国制浆造纸研究院有限公司 | A kind of extra-high voltage low dielectric loss insulating materials and its production method |
| CN109338815A (en) * | 2018-09-21 | 2019-02-15 | 四川金象赛瑞化工股份有限公司 | A kind of melamine fiber paper and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399034A (en) * | 2001-07-25 | 2003-02-26 | 中国科学院成都有机化学研究所 | High-temperature aging resisting assistant for transformer insulating paper and its making process and application |
| JP2004197277A (en) * | 2002-12-19 | 2004-07-15 | Mitsubishi Paper Mills Ltd | Light-weight lusterless coated paper |
| CN101458983A (en) * | 2009-01-05 | 2009-06-17 | 中电电气集团有限公司 | Insulation laminated paper board and preparation thereof |
| CN103895308A (en) * | 2012-12-25 | 2014-07-02 | 南通日芝电力材料有限公司 | Insulating paper for transformer iron core |
-
2016
- 2016-01-25 CN CN201610048697.9A patent/CN105714608A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399034A (en) * | 2001-07-25 | 2003-02-26 | 中国科学院成都有机化学研究所 | High-temperature aging resisting assistant for transformer insulating paper and its making process and application |
| JP2004197277A (en) * | 2002-12-19 | 2004-07-15 | Mitsubishi Paper Mills Ltd | Light-weight lusterless coated paper |
| CN101458983A (en) * | 2009-01-05 | 2009-06-17 | 中电电气集团有限公司 | Insulation laminated paper board and preparation thereof |
| CN103895308A (en) * | 2012-12-25 | 2014-07-02 | 南通日芝电力材料有限公司 | Insulating paper for transformer iron core |
Non-Patent Citations (1)
| Title |
|---|
| 李振泉: "菱格上胶绝缘纸的研制", 《变压器》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988842A (en) * | 2016-10-27 | 2018-05-04 | 中国制浆造纸研究院有限公司 | A kind of extra-high voltage low dielectric loss insulating materials and its production method |
| CN107988842B (en) * | 2016-10-27 | 2020-07-03 | 中国制浆造纸研究院有限公司 | Extra-high voltage low dielectric loss insulating material and production method thereof |
| CN107779152A (en) * | 2017-11-09 | 2018-03-09 | 瑞安复合材料(深圳)有限公司 | Pre- impregnation composition epoxy resin, diamond dotted insulating paper and their preparation method |
| CN109338815A (en) * | 2018-09-21 | 2019-02-15 | 四川金象赛瑞化工股份有限公司 | A kind of melamine fiber paper and preparation method thereof |
| CN109338815B (en) * | 2018-09-21 | 2021-03-30 | 四川金象赛瑞化工股份有限公司 | Melamine fiber paper and preparation method thereof |
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Application publication date: 20160629 |