CN106812020B - A kind of transformer insulating paper heat resistance accessory, preparation method and applications - Google Patents
A kind of transformer insulating paper heat resistance accessory, preparation method and applications Download PDFInfo
- Publication number
- CN106812020B CN106812020B CN201510845955.1A CN201510845955A CN106812020B CN 106812020 B CN106812020 B CN 106812020B CN 201510845955 A CN201510845955 A CN 201510845955A CN 106812020 B CN106812020 B CN 106812020B
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- Prior art keywords
- heat resistance
- insulating paper
- resistance accessory
- paper
- transformer insulating
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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
- 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
- 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
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/35—Polyalkenes, e.g. polystyrene
-
- 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
- D21H17/66—Salts, e.g. alums
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/46—Non-macromolecular organic 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/64—Inorganic compounds
Abstract
The invention discloses a kind of methods for making and using same for the raising transformer insulating paper heat resistant performance auxiliary agent for belonging to transformer insulating paper field.This method is to compound the polyvinylpyrrolidonemacromolecule macromolecule compound with high-temperature self-crosslinking, initiator and nitrogenous compound heat resistance accessory is made, and insulating paper surface is applied to by the method for being coated with, spraying or impregnate.Polyvinylpyrrolidone is acted on by initiator at high temperature occurs self-crosslinking reaction formation three-dimensional net structure, and paper fibre is interweaved in a manner of forming chemical bond, enhances combination between fiber, is conducive to improve the ageing-resistant performance of paper.Insulating paper heat resistant performance prepared by addition heat resistance accessory of the present invention is excellent, and under equal conditions, high temperature degradation resistance improves 15 30%, and does not influence the insulation performance of voltage transformer system.
Description
Technical field
The present invention relates to transformer insulating paper technical field, more particularly, to a kind of transformer insulating paper heat resistance accessory,
Preparation method and application.
Background technology
The correlated performance of layer insulating paper, largely decides the runnability and normal use of transformer
Service life.With the lifting of transformer voltage grade, the performance of layer insulating paper also faces the requirement of higher.Particularly apply
Insulating paper in Yu Chao, UHV transmission transformer equipment, is in the environment of high temperature for a long time, and heat drop can occur for paper fibre
Solution, hydrolysis and oxidative degradation, cause the decline of the degree of polymerization and reduce mechanical strength, and huge shadow is produced to transformer safety
Ring.There is patent to prepare heatproof insulating paper using the method for acrylonitrile modified cellulose raw into cyanoethylated fibre element, insulating paper
Though ageing-resistant performance significantly improves, its intensity decreases compared with body paper, and complex process is unfavorable for realizing industrialized production.
There is the heat endurance that patent improves cellulose using addition nitrogenous compound heat stabilizer such as melamine, dicyandiamide method, but
This method effect is extremely limited.There is patent to use and some high-molecular compounds such as polyacrylamide, Portugal are added in plant fiber
Sweet glycan, modifying nanometer cellulose object space method, increase the physical crosslinking of fiber molecule interchain using the effect of hydrogen bond, ionic bond
Point, so as to improve the bond strength of paper.Adding above-mentioned heat-proof modifier has certain heat resistance modified effect, but due to modification
Agent and fiber intermolecular forces are the non-chemical bonding force of Van der Waals force, and active force is not strong, and destructible is broken at high temperature.
The content of the invention
The defects of in order to overcome the above-mentioned prior art, it is an object of the invention to provide a kind of transformer insulating paper with heat-resisting
The methods for making and using same of auxiliary agent.
The present invention adopts the following technical scheme that：Transformer insulating paper mainly has height with heat resistance accessory by 20%-80%
The self-crosslinking polyvinylpyrrolidonemacromolecule macromolecule compound of temperature, 0.5-10% initiators and 10-70% nitrogenous compounds compounding
Form.
Above-mentioned transformer insulating paper heat resistance accessory, the polyvinylpyrrolidonemacromolecule macromolecule with high-temperature self-crosslinking
The weight average molecular weight of compound is 5000-20000000.
Above-mentioned transformer insulating paper heat resistance accessory, initiator are at least one of potassium peroxydisulfate and ammonium persulfate.
Above-mentioned transformer insulating paper heat resistance accessory, nitrogenous compound include melamine, dicyandiamide, casein, soybean
At least one of albumen, melamine resin, polyacrylamide and triethanolamine.
Above-mentioned transformer insulating paper is by polyvinylpyrrolidone and nitrogenous compound with the preparation method of heat resistance accessory
It is dissolved in the mixed solution of water or water and ethanol, room temperature or is heated to 40-90 DEG C of stirring and is completely dissolved to it, then adds and draw
Agent is sent out, stirs evenly at room temperature, that is, obtains heat resistance accessory.Heat resistance accessory is added in the form of aqueous solution or water and alcohol mixed solution
Enter, concentration 2%-20%.
Application of the above-mentioned transformer insulating paper heat resistance accessory in heat resistance speciality paper is prepared, with dipping, one side coating,
Double spread or the manner of application of spraying are applied on body paper, and applied amounts are 1.0-8.0g/m2。
Above-mentioned transformer insulating paper can be applied to transformer insulating paper, motor paper, stainless steel lining paper, resistance to heat resistance accessory
High-temperature masking paper or artificial leather release liners.
Technical scheme can produce following technique effect：Insulating paper prepared by heat resistance accessory of the present invention is applied, its
Heat resistant performance is excellent, and under equal conditions, the heat resistant performance of insulating paper improves 15-30%.
Advantages of the present invention is：Insulating paper is under conditions of less than 100 DEG C in use, heatproof auxiliary agent polyvinylpyrrolidone
Containing a large amount of polar groups, the mechanical strength of interaction of hydrogen bond raising body paper can be passed through between fiber.When insulating paper higher than
In use, under initiator effect self-crosslinking reaction can occur for polyvinylpyrrolidone in 100 DEG C of environment, pass through chemical bond
Bonding pattern forms three-dimensional net structure, and this three-dimensional net structure resistance to elevated temperatures is good, and together with body paper fiber interweaving,
Interfibrous binding site and bond strength are substantially increased, its heat resistant performance significantly improves.In addition, polyvinyl pyrrole
Alkanone good water solubility, help solubilization melamine and dicyandiamide, and compounding heatproof auxiliary agent is pollution-free, easy to use.And gather
Vinylpyrrolidone excellent insulating property, has no adverse effects the property of transformer oil.Heatproof auxiliary agent of the present invention is applied not only to become
Depressor insulating paper field, also available for motor paper, stainless steel lining paper, high temperature resistant U.S. line paper, artificial leather release liners etc. it is this kind of will
Ask the speciality paper field with heat resistance.
Embodiment
Embodiment one：It is soluble in water after polyvinylpyrrolidone 80g, melamine 10g, dicyandiamide 9.5g are mixed, add
Heat to 40 DEG C, after stirring and dissolving, be down to room temperature and add 0.5g ammonium persulfates, be made into after stirring evenly solid content be 5% it is resistance to
Hot auxiliary agent.The prebake of insulating paper body paper carries out table glue, impregnation resin content using the method for dipping to 80% moisture is contained with two roller table glue machines
5-7g/m2.1 is shown in Table into intensity index testing result of the paper after senile experiment.
Embodiment two：Dissolving is stirred at room temperature by polyvinylpyrrolidone 50g is soluble in water, by dicyandiamide 20g, casein
25g is dissolved in ethanol solution (ethanol consumption is the 30% of water) and dissolving is stirred at room temperature, then two kinds of solution are mixed, and stirs evenly
Afterwards, ammonium persulfate 5g is added at room temperature, is made into the heat resistance accessory that solid content is 8%.The prebake of insulating paper body paper is to containing 70%
Moisture, using scraper double spread, two-sided total coating weight 4-6g/m2.Into intensity index testing result of the paper after senile experiment
It is shown in Table 1.
Embodiment three：Polyvinylpyrrolidone 20g, dicyandiamide 50g, polyacrylamide 20g are added to the water, in 90 DEG C
Under the conditions of stirring and dissolving, be down to room temperature add potassium peroxydisulfate 10g, stir evenly be made into solid content be 20% heat resistance accessory.Absolutely
The prebake of edge paper body paper sprays heat resistance accessory, coating weight 5-6g/ using spraying method to 80% moisture is contained on insulating paper
m2.1 is shown in Table into intensity index testing result of the paper after senile experiment.
Example IV：Polyvinylpyrrolidone 70g, dicyandiamide 28g are added to the water, stirred under conditions of 70 DEG C molten
Solution, is down to room temperature and adds potassium peroxydisulfate 2g, stirs evenly the heat resistance accessory for being made into that solid content is 10%.Existed using the method for dipping
Heat resistance accessory, coating weight 4-5g/m are applied on artificial leather release liners body paper2.Into intensity index detection of the paper after senile experiment
It the results are shown in Table 2.
Embodiment five：Polyvinylpyrrolidone 60g is added to the water stirring and dissolving, melamine 20g, soybean protein 15g
(ethanol consumption is the 20% of water) stirring and dissolving is added in ethanol solution, then two kinds of solution are mixed, was stirring evenly and then adding into
Ammonium sulfate 5g, is made into the heat resistance accessory that solid content is 15%.Using the method for one side coating on artificial leather release liners body paper surface
Apply heat resistance accessory, coating weight 1-3g/m2.2 are shown in Table into intensity index testing result of the paper after senile experiment.
The insulating paper body paper of 1-3 of the embodiment of the present invention uses 100% non-bleached sulphate softwood pulp, about 48 ° of beating degree
SR, starches 0.5% Polyamide-Polyamsne-Epichlorohydrin wet strength agent of interior addition and 0.5% amphiprotic polyacrylamide drying strengthening agent.With implementation
The blank sample of example 1-3 contrasts is not apply the insulating paper body paper of heat resistance accessory.
The artificial leather release liners body paper of 4-5 of the embodiment of the present invention uses 100% bleached sulphate softwood pulp and leaf wood
4: 1 ratio of kraft pulp, which is copied, matches somebody with somebody, 45 ° of SR of needlebush beating degree, 40 ° of SR of leaf wood beating degree, starches 1.5% cation of interior addition and forms sediment
Powder, 0.6% Polyamide-Polyamsne-Epichlorohydrin and 0.06% cationic polyacrylamide.With the blank sample of embodiment 4-5 contrasts
Not apply the artificial leather release liners body paper of heat resistance accessory.
Heat resistance accessory method of application is using one kind in dipping, one side coating, double spread, spraying.
Insulating paper heat resistant experimental method：Insulating paper is put into the vacuum tube for being inserted with copper wire, is added#25 transformers
With oil, vacuum tube is vacuumized and is passed through nitrogen-sealed, aging 7 days in 150 DEG C of ageing ovens, survey the intensity index of insulating paper.
Artificial leather release liners senile experiment method：Artificial leather release liners are put into electric drying oven with forced convection, at 140 DEG C
Under the conditions of aging 2 it is small when, survey its intensity index.
The 1 anti-aging experimental data of insulating paper heatproof of table
The 2 anti-aging experimental data of artificial leather release liners body paper of table
It can be drawn by the data of Tables 1 and 2, apply the insulating paper body paper and artificial leather release liners of heat resistance accessory of the present invention
The heat resistant performance of body paper increases.Compared with blank sample, the resistance to of heat resistance accessory insulating paper body paper of the present invention is applied
High temperature ageing performance improves 17%-32%, and artificial leather release liners body paper heat resistant performance improves 11%.
Claims (4)
1. a kind of transformer insulating paper heat resistance accessory, it is characterized in that：Heat resistance accessory has high-temperature self-crosslinking by 20%-80%'s
Property polyvinylpyrrolidonemacromolecule macromolecule compound, 0.5-10% initiators and 10-70% nitrogenous compounds compounding form；It is described
The weight average molecular weight of polyvinylpyrrolidonemacromolecule macromolecule compound with high-temperature self-crosslinking is 5000-20000000；It is described
Initiator is at least one of potassium peroxydisulfate and ammonium persulfate；The nitrogenous compound includes melamine, dicyandiamide, does
At least one of casein, soybean protein, melamine resin, polyacrylamide and triethanolamine.
2. a kind of method of the transformer insulating paper heat resistance accessory prepared described in claim 1, it is characterized in that：By polyethylene pyrrole
Pyrrolidone and nitrogenous compound are dissolved in the mixed solution of water or water and ethanol, room temperature or be heated to 40-90 DEG C stirring to its
It is completely dissolved, then adds initiator, stir evenly at room temperature, that is, obtain heat resistance accessory.
3. the method according to claim 2 for preparing transformer insulating paper heat resistance accessory, it is characterized in that：It is described heat-resisting to help
Agent is added in the form of aqueous solution or water and alcohol mixed solution, concentration 2%-20%.
4. application of the transformer insulating paper heat resistance accessory in transformer insulating paper is prepared described in a kind of claim 1, its
It is characterized in：The heat resistance accessory is to impregnate, the manner of application of one side coating, double spread or spraying is applied on body paper, and applies
Painting amount is 1.0-8.0g/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510845955.1A CN106812020B (en) | 2015-11-27 | 2015-11-27 | A kind of transformer insulating paper heat resistance accessory, preparation method and applications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510845955.1A CN106812020B (en) | 2015-11-27 | 2015-11-27 | A kind of transformer insulating paper heat resistance accessory, preparation method and applications |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812020A CN106812020A (en) | 2017-06-09 |
| CN106812020B true CN106812020B (en) | 2018-04-17 |
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| CN201510845955.1A Active CN106812020B (en) | 2015-11-27 | 2015-11-27 | A kind of transformer insulating paper heat resistance accessory, preparation method and applications |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574713A (en) * | 2017-08-31 | 2018-01-12 | 常州市丰瑞电子有限公司 | A kind of high temperature insulation paper and preparation method thereof |
| CN110685181A (en) * | 2018-07-04 | 2020-01-14 | 康利源科技（天津）股份有限公司 | Structure and processing technology of corrugated paper tube |
| CN112647347A (en) * | 2019-10-11 | 2021-04-13 | 中国制浆造纸研究院有限公司 | Preparation method of heat-resistant auxiliary agent for heat-resistant insulating paper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3324222A (en) * | 1963-10-28 | 1967-06-06 | Westinghouse Electric Corp | Treated cellulosic material and electrical apparatus embodying the same |
| 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 |
| CN103266535A (en) * | 2013-05-27 | 2013-08-28 | 长沙理工大学 | Preparation method of anti-ageing agent for transformer insulating paper |
-
2015
- 2015-11-27 CN CN201510845955.1A patent/CN106812020B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3324222A (en) * | 1963-10-28 | 1967-06-06 | Westinghouse Electric Corp | Treated cellulosic material and electrical apparatus embodying the same |
| 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 |
| CN103266535A (en) * | 2013-05-27 | 2013-08-28 | 长沙理工大学 | Preparation method of anti-ageing agent for transformer insulating paper |
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| CN106812020A (en) | 2017-06-09 |
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Address after: 100102 Chaoyang District, No. 4, Kai Yang Road, light building, Beijing Applicant after: China pulp and Paper Research Institute Co., Ltd. Address before: 100102 Chaoyang District, No. 4, Kai Yang Road, light building, Beijing Applicant before: China National Pulp & Paper Research Institute |
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