CN116377754A - Paper for electrolytic capacitor and processing technology thereof - Google Patents
Paper for electrolytic capacitor and processing technology thereof Download PDFInfo
- Publication number
- CN116377754A CN116377754A CN202310274079.6A CN202310274079A CN116377754A CN 116377754 A CN116377754 A CN 116377754A CN 202310274079 A CN202310274079 A CN 202310274079A CN 116377754 A CN116377754 A CN 116377754A
- Authority
- CN
- China
- Prior art keywords
- paper
- paper layer
- wood pulp
- electrolytic capacitor
- pulp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 33
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 14
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims abstract description 14
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims abstract description 14
- 235000009120 camo Nutrition 0.000 claims abstract description 14
- 235000005607 chanvre indien Nutrition 0.000 claims abstract description 14
- 239000011487 hemp Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 244000198134 Agave sisalana Species 0.000 claims abstract description 8
- 235000011624 Agave sisalana Nutrition 0.000 claims abstract description 7
- 241001397809 Hakea leucoptera Species 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000013329 compounding Methods 0.000 claims abstract description 4
- 238000010009 beating Methods 0.000 claims description 6
- 238000000889 atomisation Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000005837 radical ions Chemical class 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Paper (AREA)
Abstract
The invention belongs to the technical field of special paper manufacture, and particularly relates to paper for an electrolytic capacitor, which comprises an electronic polar needle wood pulp paper layer and a long fiber sisal hemp pulp paper layer. The processing technology of the paper for the electrolytic capacitor comprises the steps of preparing an electronic polar needle wood pulp paper layer, preparing a long fiber sisal hemp pulp paper layer, compounding the two paper layers by a dry method, drying and rolling to obtain a finished product. The wood pulp paper layer prevents the large charge quantity from causing breakdown, and the hemp pulp paper layer effectively ensures the liquid absorption performance and the heat dissipation when the charge passes through, so that the stability of the electrical performance of the capacitor is ensured when the capacitor works continuously for a long time; because the long fiber hemp pulp has better low temperature resistance and good heat radiation performance, the wood pulp fiber has good high temperature resistance, so that the service temperature range of the electrolytic capacitor can be wider, and the service life of the product is prolonged.
Description
Technical Field
The invention belongs to the technical field of special paper manufacture, and particularly relates to paper for an electrolytic capacitor and a processing technology thereof.
Background
Electrolytic paper, namely electrolytic capacitor paper, is one of three key materials for forming an aluminum electrolytic capacitor, is used as an adsorption carrier of electrolyte, and forms a cathode of the aluminum electrolytic capacitor together with the electrolyte, and simultaneously plays a role of isolating bipolar foil, and is also called as isolating paper; the quality of the electrolytic paper directly influences four main indexes of loss, leakage current, capacity and rated voltage of the aluminum electrolysis electric slave. The electrolytic capacitor paper should meet the following requirements: first, the purity is high, impurities affecting the performance of the electrolyte and the electrode foil must be tightly controlled, such as various acid radical ions, conductive metal ions and the like, which is also a main mark of the electrolytic capacitor paper different from other papers; secondly, the paper is uniform, the thickness and the tightness are uniform, the fiber arrangement is uniform, and meanwhile, paper diseases such as holes, fiber bundles and the like cannot be caused; thirdly, the necessary mechanical and electrical strength is sufficient; fourth, the electrolyte should have good impregnation and retention properties, namely absorption properties; fifth, when the electrolyte is formed into a composite, the electrolyte has low resistance in a range from low temperature to high temperature.
However, in the working process of the electrolytic paper, a large amount of charges break down to influence the stability of the capacitor in long-time working, in addition, a large amount of heat is generated when the capacitor works, the temperature of the capacitor is increased, and when the temperature exceeds the working range of the capacitor, the service life of the capacitor is seriously influenced.
Disclosure of Invention
The invention aims at solving the technical problems, and provides paper for an electrolytic capacitor and a processing technology thereof, which achieve the effects of prolonging the service life of products and improving the stability of the electrical performance of the capacitor.
In view of this, the present invention provides a paper for electrolytic capacitors comprising an electronic polar softwood pulp paper layer and a long fiber sisal pulp paper layer.
Further, a processing technology of the paper for the electrolytic capacitor comprises the following steps:
step S1, preparing an electronic polar needle wood pulp paper layer, namely beating the pulp degree of wood pulp fiber to be more than 85 DEG SR, keeping the wet weight to be 10-12 g, and making paper;
s2, preparing a long fiber sisal hemp pulp paper layer, beating the hemp pulp fiber pulp degree to 40-45 degrees SR, and making paper by paper making while keeping the wet weight above 25 grams;
and S3, dry compounding, namely, the wood pulp paper layer is dry paper, the hemp pulp paper layer is attached to the wood pulp paper layer after dot atomization sizing, the drying temperature is 55-65 ℃, and the finished product is rolled after multi-section drying.
In the technical scheme, the wood pulp paper layer prevents the electric charge from being broken down due to large electric charge, and the hemp pulp paper layer effectively ensures the liquid absorption performance and the heat dissipation when the electric charge passes through, so that the stability of the electric performance of the capacitor is ensured when the capacitor works continuously for a long time; because the long fiber hemp pulp has better low temperature resistance and good heat radiation performance, the wood pulp fiber has good high temperature resistance, so that the service temperature range of the electrolytic capacitor can be wider, and the service life of the product is prolonged.
The beneficial effects of the invention are as follows: the wood pulp paper layer prevents the large charge quantity from causing breakdown, and the hemp pulp paper layer effectively ensures the liquid absorption performance and the heat dissipation when the charge passes through, thereby ensuring the stability of the electrical performance of the capacitor in uninterrupted operation for a long time; because the long fiber hemp pulp has better low temperature resistance and good heat radiation performance, the wood pulp fiber has good high temperature resistance, so that the service temperature range of the electrolytic capacitor can be wider, and the service life of the product is prolonged.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. For ease of description, the dimensions of the various elements are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters refer to like items and, thus, once an item is defined, no further discussion thereof is necessary.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged where appropriate so that embodiments of the present application may be practiced in sequences other than those described herein, and that the objects identified by "first," "second," etc. are generally of a type and do not limit the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
It should be noted that, in the description of the present application, terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc., indicate orientations or positional relationships, and are merely for convenience in describing the present application and simplifying the description, and the words of orientation do not indicate or imply that the apparatus or elements being referred to must have a specific orientation or be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
It should be noted that, in this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
A paper for electrolytic capacitor comprises an electronic polar needle wood pulp paper layer and a long fiber sisal hemp pulp paper layer.
The processing technology for processing the paper for the electrolytic capacitor comprises the following steps:
step S1, preparing an electronic polar needle wood pulp paper layer, namely beating the pulp degree of wood pulp fiber to be more than 85 DEG SR, keeping the wet weight to be 10-12 g, and making paper;
s2, preparing a long fiber sisal hemp pulp paper layer, beating the hemp pulp fiber pulp degree to 40-45 degrees SR, and making paper by paper making while keeping the wet weight above 25 grams;
and S3, dry compounding, namely, the wood pulp paper layer is dry paper, the hemp pulp paper layer is attached to the wood pulp paper layer after dot atomization sizing, the drying temperature is 55-65 ℃, and the finished product is rolled after multi-section drying.
The wood pulp paper layer prevents the large charge quantity from causing breakdown, and the hemp pulp paper layer effectively ensures the liquid absorption performance and the heat dissipation when the charge passes through, thereby ensuring the stability of the electrical performance of the capacitor in uninterrupted operation for a long time; because the long fiber hemp pulp has better low temperature resistance and good heat radiation performance, the wood pulp fiber has good high temperature resistance, so that the service temperature range of the electrolytic capacitor can be wider, and the service life of the product is prolonged.
While the embodiments of the present application have been described above, the embodiments and features of the embodiments may be combined with each other without conflict, the present application is not limited to the specific embodiments described above, which are intended to be illustrative only and not limiting, and many forms may be made by those of ordinary skill in the art, given the benefit of this disclosure, without departing from the spirit of the present application and the scope of the claims.
Claims (2)
1. An electrolytic capacitor paper, comprising: an electron polar needle wood pulp paper layer and a long fiber sisal hemp pulp paper layer.
2. A process for producing the electrolytic capacitor paper according to claim 1, comprising the steps of:
step S1, preparing an electronic polar needle wood pulp paper layer, namely beating the pulp degree of wood pulp fiber to be more than 85 DEG SR, keeping the wet weight to be 10-12 g, and making paper;
s2, preparing a long fiber sisal hemp pulp paper layer, beating the hemp pulp fiber pulp degree to 40-45 degrees SR, and making paper by paper making while keeping the wet weight above 25 grams;
and S3, dry compounding, namely, the wood pulp paper layer is dry paper, the hemp pulp paper layer is attached to the wood pulp paper layer after dot atomization sizing, the drying temperature is 55-65 ℃, and the finished product is rolled after multi-section drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310274079.6A CN116377754A (en) | 2023-03-21 | 2023-03-21 | Paper for electrolytic capacitor and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310274079.6A CN116377754A (en) | 2023-03-21 | 2023-03-21 | Paper for electrolytic capacitor and processing technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116377754A true CN116377754A (en) | 2023-07-04 |
Family
ID=86963985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310274079.6A Pending CN116377754A (en) | 2023-03-21 | 2023-03-21 | Paper for electrolytic capacitor and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116377754A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1626731A (en) * | 2003-12-09 | 2005-06-15 | 浙江凯恩特种材料股份有限公司 | Paper of electrolytic capacitor and preparation method |
| CN101187185A (en) * | 2003-12-09 | 2008-05-28 | 浙江凯恩特种材料股份有限公司 | High tightness electrolytic capacitor paper and its preparation method |
| CN104988809A (en) * | 2015-06-26 | 2015-10-21 | 浙江凯恩特种材料股份有限公司 | High voltage resistant electrolytic capacitor paper and preparation method thereof |
| CN111455727A (en) * | 2020-04-17 | 2020-07-28 | 浙江莱勒克纸业有限公司 | High-voltage low-impedance electrolytic capacitor paper and preparation method thereof |
-
2023
- 2023-03-21 CN CN202310274079.6A patent/CN116377754A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1626731A (en) * | 2003-12-09 | 2005-06-15 | 浙江凯恩特种材料股份有限公司 | Paper of electrolytic capacitor and preparation method |
| CN101187185A (en) * | 2003-12-09 | 2008-05-28 | 浙江凯恩特种材料股份有限公司 | High tightness electrolytic capacitor paper and its preparation method |
| CN104988809A (en) * | 2015-06-26 | 2015-10-21 | 浙江凯恩特种材料股份有限公司 | High voltage resistant electrolytic capacitor paper and preparation method thereof |
| CN111455727A (en) * | 2020-04-17 | 2020-07-28 | 浙江莱勒克纸业有限公司 | High-voltage low-impedance electrolytic capacitor paper and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |