CN106812020A - 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
- CN106812020A CN106812020A CN201510845955.1A CN201510845955A CN106812020A CN 106812020 A CN106812020 A CN 106812020A CN 201510845955 A CN201510845955 A CN 201510845955A CN 106812020 A CN106812020 A CN 106812020A
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- CN
- China
- Prior art keywords
- heat resistance
- paper
- insulating paper
- resistance accessory
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Paper (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a kind of methods for making and using same of the raising transformer insulating paper heat resistant performance auxiliary agent for belonging to transformer insulating paper field.The method is that the polyvinylpyrrolidonemacromolecule macromolecule compound with high-temperature self-crosslinking, initiator and nitrogen-containing compound compounding are obtained into heat resistance accessory, and insulating paper surface is applied to by the method for coating, spraying or dipping.Polyvinylpyrrolidone at high temperature by initiator act on occur self-crosslinking reaction formed three-dimensional net structure, to form chemical bond in the way of by paper fibre interweave, enhance combination between fiber, be conducive to improve paper ageing-resistant performance.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 insulating properties 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 with heat-resisting
Auxiliary agent, preparation method and application.
Background technology
The correlated performance of layer insulating paper, largely decides the runnability and just of transformer
Normal service life.With the lifting of transformer voltage grade, the performance of layer insulating paper also faces higher
Requirement.Be especially applicable to surpass, the insulating paper in UHV transmission transformer equipment, height is in for a long time
Temperature environment in, paper fibre can occur thermal degradation, hydrolysis and oxidative degradation, cause the degree of polymerization decline and
Mechanical strength is reduced, transformer safety is had an immense impact on.There is patent to use acrylonitrile modified fiber
The method of element generation cyanoethylated fibre element prepares heatproof insulating paper, though the ageing-resistant performance of insulating paper is significantly carried
Height, but its intensity decreases compared with body paper, and complex process is unfavorable for realizing industrialized production.There is patent
The thermally-stabilised of cellulose is improved using addition nitrogen-containing compound heat stabilizer such as melamine, dicyandiamide method
Property, but the method effect is extremely limited.There is patent to use and some macromolecular compounds are added in string
Such as polyacrylamide, Glucomannan, modifying nanometer cellulose object space method, using hydrogen bond, the effect of ionic bond
To increase the physical crosslinking point of fiber molecule interchain, so as to improve the bond strength of paper.Add above-mentioned heat-resisting
Modifying agent has certain heat resistance modified effect, but because modifying agent and fiber intermolecular forces are that Van der Waals force is non-
Chemical bond force, active force is not strong, at high temperature destructible fracture.
The content of the invention
In order to overcome the defect of above-mentioned prior art, it is an object of the invention to provide a kind of transformer insulating paper
With the methods for making and using same of heat resistance accessory.
The present invention is adopted the following technical scheme that：The transformer insulating paper main tool by 20%-80% of heat resistance accessory
There are polyvinylpyrrolidonemacromolecule macromolecule compound, 0.5-10% initiators and the 10-70% of high-temperature self-crosslinking nitrogenous
Compound compounding is formed.
Above-mentioned transformer insulating paper heat resistance accessory, the polyvinylpyrrolidone with high-temperature self-crosslinking
The weight average molecular weight of macromolecular compound is 5000-20000000.
Above-mentioned transformer insulating paper heat resistance accessory, initiator is at least in potassium peroxydisulfate and ammonium persulfate
Kind.
Above-mentioned transformer insulating paper heat resistance accessory, nitrogen-containing compound includes melamine, dicyandiamide, cheese
At least one in element, soybean protein, melamine resin, polyacrylamide and triethanolamine.
The preparation method of above-mentioned transformer insulating paper heat resistance accessory is by polyvinylpyrrolidone and nitrogen
Compound is dissolved in water or water and the mixed solution of ethanol, room temperature or to be heated to 40-90 DEG C of stirring completely molten to it
Solution, is subsequently adding initiator, stirs at room temperature, that is, obtain heat resistance accessory.Heat resistance accessory is with the aqueous solution
Or water is added with the form of alcohol mixed solution, concentration is 2%-20%.
Application of the above-mentioned transformer insulating paper heat resistance accessory in heat resistance speciality paper is prepared, with dipping, list
The manner of application of face coating, double spread or spraying is applied on body paper, and applied amounts are 1.0-8.0g/m2。
Above-mentioned transformer insulating paper heat resistance accessory can be applied to transformer insulating paper, motor paper, stainless steel
Lining paper, high temperature resistant U.S.'s line paper or artificial leather release liners.
Technical scheme can produce following technique effect：Apply insulation prepared by heat resistance accessory of the present invention
Paper, its heat resistant performance is excellent, and under equal conditions, the heat resistant performance of insulating paper is improved
15-30%.
Advantages of the present invention is：Insulating paper when being used under conditions of less than 100 DEG C, heatproof auxiliary agent polyethylene pyrrole
Pyrrolidone contains a large amount of polar groups, can improve the mechanical strength of body paper by interaction of hydrogen bond between fiber.
When insulating paper is used in the environment higher than 100 DEG C, polyvinylpyrrolidone can occur under initiator effect
Self-crosslinking reaction, three-dimensional net structure is formed by the bonding pattern of chemical bond, and this three-dimensional net structure is resistance to
High-temperature behavior is good, and together with body paper fiber interweaving, substantially increases interfibrous binding site and combination
Intensity, its heat resistant performance is significantly improved.Additionally, polyvinylpyrrolidone good water solubility, to trimerization
Cyanamide and dicyandiamide help solubilization, and compounding heatproof auxiliary agent is pollution-free, easy to use.And polyvinyl pyrrole
Alkanone excellent insulating property, the property to transformer oil has no adverse effects.Heatproof auxiliary agent of the present invention is applied not only to
Transformer insulating paper field, also can be used for the U.S. line paper of motor paper, stainless steel lining paper, high temperature resistant, artificial leather
Release liners etc. are this kind of to require the speciality paper field with heat resistance.
Specific embodiment
Embodiment one：It is dissolved in after polyvinylpyrrolidone 80g, melamine 10g, dicyandiamide 9.5g are mixed
In water, 40 DEG C, after stirring and dissolving are heated to, are down to room temperature and add 0.5g ammonium persulfates, after stirring
It is made into the heat resistance accessory that solid content is 5%.The prebake of insulating paper body paper extremely contains 80% moisture, using the side of dipping
Method carries out table glue, impregnation resin content 5-7g/m with two roller table glue machines2.Detected through the intensity index after senile experiment into paper
The results are shown in Table 1.
Embodiment two：Dissolving is stirred at room temperature by polyvinylpyrrolidone 50g is soluble in water, by dicyandiamide 20g,
(ethanol consumption is the 30% of water) is stirred at room temperature dissolving during casein 25g is dissolved in ethanol solution, then by two kinds
Solution mixes, and after stirring, ammonium persulfate 5g is added at room temperature, and it is that 8% heat-resisting helps to be made into solid content
Agent.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 paper 1 is shown in Table through the intensity index testing result after senile experiment.
Embodiment three：Polyvinylpyrrolidone 20g, dicyandiamide 50g, polyacrylamide 20g are added to the water,
The stirring and dissolving under conditions of 90 DEG C, is down to room temperature and adds potassium peroxydisulfate 10g, stirs and is made into solid content
It is 20% heat resistance accessory.The prebake of insulating paper body paper extremely contains 80% moisture, using spraying method in insulating paper
Upper spraying heat resistance accessory, coating weight is 5-6g/m2.See through the intensity index testing result after senile experiment into paper
Table 1.
Example IV：Polyvinylpyrrolidone 70g, dicyandiamide 28g are added to the water, in 70 DEG C of condition
Lower stirring and dissolving, is down to room temperature and adds potassium peroxydisulfate 2g, and it is that 10% heat-resisting helps to stir and be made into solid content
Agent.Heat resistance accessory is applied on artificial leather release liners body paper using the method for dipping, coating weight is 4-5g/m2。
Into paper 2 are shown in Table through the intensity index testing result after senile experiment.
Embodiment five：Polyvinylpyrrolidone 60g is added to the water stirring and dissolving, melamine 20g, soybean
Protein 15 g adds (ethanol consumption is the 20% of water) stirring and dissolving in ethanol solution, then two kinds of solution are mixed
Close, be stirring evenly and then adding into ammonium persulfate 5g, be made into the heat resistance accessory that solid content is 15%.Applied using one side
The method of cloth applies heat resistance accessory on artificial leather release liners body paper surface, and coating weight is 1-3g/m2.Into paper through old
Change the intensity index testing result after experiment and be shown in Table 2.
The insulating paper body paper of embodiment of the present invention 1-3 uses 100% non-bleached sulphate softwood pulp, beating degree
About 48 ° of SR, addition 0.5% Polyamide-Polyamsne-Epichlorohydrin wet strength agent and 0.5% amphiprotic polyacrylamide in slurry
Drying strengthening agent.The blank sample contrasted with embodiment 1-3 is the insulating paper body paper for not applying heat resistance accessory.
The artificial leather release liners body paper of embodiment of the present invention 4-5 using 100% bleached sulphate softwood pulp with it is wealthy
The leaf wood ratio of NBSK 4: 1 is copied and matched somebody with somebody, 45 ° of SR of needlebush beating degree, 40 ° of SR of leaf wood beating degree, in slurry
Add 1.5% cationic starch, 0.6% Polyamide-Polyamsne-Epichlorohydrin and 0.06% PAMC.
The blank sample contrasted with embodiment 4-5 is the artificial leather release liners body paper for not applying heat resistance accessory.
Heat resistance accessory method of application is using the one kind in dipping, one side coating, double spread, spraying.
Insulating paper heat resistant experimental technique：Insulating paper is put into the vacuum tube for being inserted with copper wire, is added#25
Transformer oil, vacuum tube is vacuumized and nitrogen-sealed is passed through, and aging 7 days in 150 DEG C of ageing ovens, is surveyed
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,
Aging 2 hours under conditions of 140 DEG C, its intensity index is surveyed.
The anti-aging experimental data of insulating paper heatproof of table 1
The artificial leather anti-aging experimental data of release liners body paper of table 2
Can be drawn by the data of Tables 1 and 2, apply the insulating paper body paper of heat resistance accessory of the present invention and artificial
The heat resistant performance for removing from office release liners body paper increases.Compared with blank sample, the present invention is applied heat-resisting
The heat resistant performance of auxiliary agent insulating paper body paper improves 17%-32%, and artificial leather release liners body paper high temperature resistant is old
Change performance and improve 11%.
Claims (8)
1. a kind of transformer insulating paper heat resistance accessory, it is characterized in that：Heat resistance accessory is main by 20%-80%'s
Polyvinylpyrrolidonemacromolecule macromolecule compound, 0.5-10% initiators and 10-70% with high-temperature self-crosslinking contain
Nitrogen compound compounding is formed.
2. transformer insulating paper heat resistance accessory according to claim 1, it is characterized in that：It is described to have
The weight average molecular weight of the polyvinylpyrrolidonemacromolecule macromolecule compound of high-temperature self-crosslinking is 5000-20000000.
3. transformer insulating paper heat resistance accessory according to claim 1, it is characterized in that：The initiation
Agent is at least one in potassium peroxydisulfate and ammonium persulfate.
4. transformer insulating paper heat resistance accessory according to claim 1, it is characterized in that：Described contains
Nitrogen compound includes melamine, dicyandiamide, casein, soybean protein, melamine resin, poly-
At least one in acrylamide and triethanolamine.
5. a kind of method for preparing any described transformer insulating paper heat resistance accessory in claim 1-4, its
It is characterized in：Polyvinylpyrrolidone and nitrogen-containing compound are dissolved in the mixed solution of water or water with ethanol,
Room temperature is heated to 40-90 DEG C of stirring and is completely dissolved to it, is subsequently adding initiator, stirs at room temperature,
Obtain heat resistance accessory.
6. the method for preparing transformer insulating paper heat resistance accessory according to claim 5, it is characterized in that：
The heat resistance accessory is added in the form of the aqueous solution or water and alcohol mixed solution, and concentration is 2%-20%.
7. heat resistance is being prepared according to any described transformer insulating paper heat resistance accessory in claim 1-4
Application in speciality paper, it is characterized in that：The heat resistance accessory is to impregnate, one side coating, double spread or spray
The manner of application of painting is applied on body paper, and applied amounts are 1.0-8.0g/m2。
8. transformer insulating paper heat resistance accessory according to claim 7 is in heat resistance speciality paper is prepared
Application, it is characterized in that：The heat resistance speciality paper includes：It is transformer insulating paper, motor paper, stainless
Steel lining paper, high temperature resistant U.S.'s line paper or artificial leather release liners.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN106812020A true CN106812020A (en) | 2017-06-09 |
| CN106812020B CN106812020B (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (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-aging agent for transformer insulation 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-aging agent for transformer insulation paper |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN106812020B (en) | 2018-04-17 |
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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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