CN108978322A - One kind is enhanced to exempt from the solid electrolytic capacitor paper and preparation method thereof that is carbonized - Google Patents
One kind is enhanced to exempt from the solid electrolytic capacitor paper and preparation method thereof that is carbonized Download PDFInfo
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- CN108978322A CN108978322A CN201811056528.5A CN201811056528A CN108978322A CN 108978322 A CN108978322 A CN 108978322A CN 201811056528 A CN201811056528 A CN 201811056528A CN 108978322 A CN108978322 A CN 108978322A
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- electrolytic capacitor
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- pulp
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
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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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
- D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
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Abstract
The invention belongs to electrolytic capacitor paper fields, and in particular to one kind exempts from the solid electrolytic capacitor paper and preparation method thereof that is carbonized.One kind exempting from the solid electrolytic capacitor paper that is carbonized, and the raw material of the electrolytic capacitor paper is made of wood pulp and chemical fibre；The beating degree of wood pulp is that the beating degree of wood pulp is 30 ~ 90 ° of SR, and weight in wet base is 3 ~ 30g；The length of chemical fibre is 1.5 ~ 15mm, and fiber number is 0.1 ~ 3dtex；By dry mass percentages, wood pulp is 10 ~ 80%, and chemical fibre is 20 ~ 90%.The present invention uses wood pulp and chemical fibre for raw material, by wet process manufacture paper with pulp preparation exempt from be carbonized solid electrolytic capacitor paper, the present invention assigns paper certain intensity by being beaten to wood pulp, and side reaction of the paper to the wellability of monomer and when reducing conductive high polymer monomer polymerization is improved using chemical fibre, prepare with higher-strength and the solid electrolytic capacitor paper that is carbonized is exempted from preferable wellability to monomer.
Description
Technical field
The invention belongs to electrolytic capacitor paper fields, and in particular to it is a kind of it is enhanced exempt to be carbonized solid electrolytic capacitor paper and
Preparation method.
Background technique
Electrolyte in solid electrolytic capacitor is solid-state conductive high molecular material, the structure packet of solid electrolytic capacitor
Include anode, cathode, electrolytic paper and solid-state conductive high molecular material.Electrolytic capacitor paper be prepare electrolytic capacitor can not or
One of scarce raw material is mainly used for adsorbing monomer and oxidant in the capacitor, forms polymer, while playing isolation pole plate
Effect, prevents anode and cathode from directly contacting and short-circuit.
Traditional electrolytic capacitor paper is holocellulos material, weaker to the adsorption capacity of monomer, while being contained in cellulose
There is a large amount of hydroxyl, side reaction can be generated in conductive high polymer monomer polymerization, influence the performance of capacitor；In addition, general electricity
Fiber combination is more close in solution paper, and conductive high polymer monomer is difficult to be adsorbed in electrolytic paper completely, leads to conducting polymer list
It is unevenly distributed in electrolytic paper after body polymerization, influences capacitor performance.Currently, the solid electrolytic capacitor produced in the market,
It needs to carry out carbonization treatment to electrolytic paper at 250 ~ 270 DEG C in production process, to improve the sponginess of electrolytic paper and to monomer
Adsorptivity.It under this technique, needs for entire capacitor to be heated under higher temperature, production technology is complicated, and high temperature cabonization
Process will cause destruction to the structure of cathode and anode foil, cause properties of product unstable, leakage current is easy exceeded；Further, since plus
Hot temperature is high, needs to consume a large amount of energy, adds somewhat to the production cost of enterprise.
Therefore, in order to simplify the production technology of solid electrolytic capacitor, production energy consumption is reduced, developing one kind, to exempt from carbonization solid
State electrolytic capacitor paper (number of patent application: 2018091011182, the applying date: on September 10th, 2018), this kraft capacitor paper pair
Conductive high polymer monomer has preferable adsorptivity, and can reduce side reaction when conductive high polymer monomer polymerization, while
Without carrying out carbonization treatment to kraft capacitor paper in capacitor production process, but the intensity of the solid electrolytic capacitor paper is inadequate.
Summary of the invention
It is an object of the present invention to provide a kind of pair of monomers to have preferable adsorptivity, and side reaction is less, raw in capacitor
The electrolytic capacitor paper of carbonization treatment is not necessarily to during producing, another object of the present invention is to provide above-mentioned electrolytic capacitor paper
Preparation method.
In order to realize above-mentioned first purpose, the invention adopts the following technical scheme:
One kind is enhanced to exempt from the solid electrolytic capacitor paper that is carbonized, and the raw material of the electrolytic capacitor paper is by wood pulp and chemical fibre group
At；The wood pulp includes non-bleaching needle-point leaf pulp, bleaching needle-point leaf pulp, non-bleached hardwood pulp, bleached hardwood pulp, straw pulp
One or more of, the beating degree of wood pulp is 30 ~ 90 ° of SR, and weight in wet base is 3 ~ 30g；The chemical fibre include polyester fiber,
The length of one or more of Fypro, polyolefine fiber, vinylon fibre and polyacrylonitrile fibre, chemical fibre is
1.5 ~ 15mm, fiber number are 0.1 ~ 3dtex；By dry mass percentages, wood pulp is 10 ~ 80%, and chemical fibre is 20 ~ 90%.
Preferably, pressing dry mass percentages, wood pulp is 40 ~ 60%, and chemical fibre is 40 ~ 60%.
Preferably, the beating degree of wood pulp is 60 ~ 80 ° of SR, weight in wet base is 8 ~ 15g.
Preferably, the length of chemical fibre is 3 ~ 10mm, fiber number is 0.5 ~ 2.5dtex.
Preferably, the surface spray spraying of the electrolytic capacitor paper or dip coated have enhancement layer, applied after coating
Cloth amount accounts for the 1 ~ 10% of paper absolute dry mass.
Preferably, the ingredient of spraying coating liquid or dip coated liquid is polyvinyl alcohol and its derivative, polyacrylamide
One or more of with starch.
In order to realize above-mentioned second purpose, the invention adopts the following technical scheme:
A method of prepare and described enhanced exempt from the solid electrolytic capacitor paper that is carbonized, which is characterized in that this method include with
Under step:
1) dispersion is discongested after wood pulp being added water, obtains slurry A；
2) chemical fibre is uniformly dispersed, obtains slurry B；
3) slurry A and slurry B is sufficiently mixed, and obtains mixed slurry；
4) mixed slurry is subjected to online drainage and formation, using squeezing, drying, batches and cut, obtain enhanced exempting to be carbonized
Solid electrolytic capacitor paper.
Preferably, step 1) beating equipment is mill beater.
Preferably, step 1) beating consistency is 1 ~ 10%.
Preferably, forming is manufactured paper with pulp using cylinder in step 4), Top wire former concentration is 0.01 ~ 0.5%.
Preferably, by spraying coating or dip coated after step 4) is dry, then re-dry, spraying coating and dipping
The coating fluid mass concentration of coating is 0.1 ~ 10%.
The present invention uses wood pulp and chemical fibre for raw material, by wet process manufacture paper with pulp preparation exempt from be carbonized solid electrolytic capacitor
Paper, the present invention assigns paper certain intensity by being beaten to wood pulp (further using the method for coating), and utilizes
Chemical fibre to improve paper to the wellability of monomer and reduce monomer side reaction in the course of the polymerization process, prepare have it is higher
Intensity simultaneously exempts from the solid electrolytic capacitor paper that is carbonized with preferable wellability to monomer.
Specific embodiment
Reference example 1
Wood pulp is discongested using double plate mill beater, and discongesting concentration is 4%, and beating degree and weight in wet base after discongesting are respectively 13 °
SR,17.5g；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, fiber number 0.8dtex.By two kinds of fibers
It is mixed, wood pulp and PET polyester fiber account for 50%, the 50% of fiber over dry total amount respectively after mixing, and slurry concentration is after mixing
1%, after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, then through squeezing, drying, batch and
Finished product is obtained after cutting.
Reference example 2
Wood pulp is discongested using double plate mill beater, and discongesting concentration is 4%, and beating degree and weight in wet base after discongesting are respectively 13 °
SR,17.5g；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, fiber number 1.7dtex.By two kinds of fibers
It is mixed, wood pulp and PET polyester fiber account for 30%, the 70% of fiber over dry total amount respectively after mixing, and slurry concentration is after mixing
1%, after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, then through squeezing, drying, batch and
Finished product is obtained after cutting.
Embodiment 1
Wood pulp carries out mashing processing, beating consistency 4% using double plate mill beater, and beating degree and weight in wet base after mashing are respectively
65°SR,12g；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, fiber number 0.8dtex.By two kinds of fibers
It is mixed, wood pulp and PET polyester fiber account for 50%, the 50% of fiber over dry total amount respectively after mixing, and slurry concentration is after mixing
1%, after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, then through squeezing, drying, batch and
Finished product is obtained after cutting.
Embodiment 2
Wood pulp carries out mashing processing, beating consistency 4% using double plate mill beater, and beating degree and weight in wet base after mashing are respectively
65°SR,12g；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, fiber number 1.7dtex.By two kinds of fibers
It is mixed, wood pulp and PET polyester fiber account for 30%, the 70% of fiber over dry total amount respectively after mixing, and slurry concentration is after mixing
1%, after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, then through squeezing, drying, batch and
Finished product is obtained after cutting.
Embodiment 3
Wood pulp carries out mashing processing, beating consistency 4% using double plate mill beater, and beating degree and weight in wet base after mashing are respectively
75°SR,10g；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, fiber number 0.8dtex.By two kinds of fibers
It is mixed, wood pulp and PET polyester fiber account for 50%, the 50% of fiber over dry total amount respectively after mixing, and slurry concentration is after mixing
1%, after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, then through squeezing, drying, batch and
Finished product is obtained after cutting.
Embodiment 4
Wood pulp carries out mashing processing, beating consistency 4% using double plate mill beater, and beating degree and weight in wet base after mashing are respectively
75°SR,10g；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, fiber number 1.7dtex.By two kinds of fibers
It is mixed, wood pulp and PET polyester fiber account for 30%, the 70% of fiber over dry total amount respectively after mixing, and slurry concentration is after mixing
1%, after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, then through squeezing, drying, batch and
Finished product is obtained after cutting.
Embodiment 5
Non- bleaching needle-point leaf pulp is discongested and is beaten using double plate mill beater, beating consistency 4%, the beating degree after mashing
It is respectively 65 ° of SR, 12g with weight in wet base；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, and fiber number is
0.8dtex.Two kinds of fibers are mixed, after mixing wood pulp and PET polyester fiber account for respectively fiber over dry total amount 50%,
50%, slurry concentration is 1% after mixing, and after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, so
It by squeezing, drying, spraying coating, drying, batches and obtains finished product after cutting, coating fluid is polyvinyl alcohol water solution, quality
Concentration is 1.5%, and coating weight is 2% of paper absolute dry mass after being coated with.
Embodiment 6
Non- bleaching needle-point leaf pulp is discongested and is beaten using double plate mill beater, beating consistency 4%, the beating degree after mashing
It is respectively 65 ° of SR, 12g with weight in wet base；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, and fiber number is
0.8dtex.Two kinds of fibers are mixed, after mixing wood pulp and PET polyester fiber account for respectively fiber over dry total amount 30%,
70%, slurry concentration is 1% after mixing, and after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, so
It by squeezing, drying, spraying coating, drying, batches and obtains finished product after cutting, coating fluid is polyvinyl alcohol water solution, quality
Concentration is 2%, and coating weight is 2.5% of paper absolute dry mass after being coated with.
Embodiment 7
Non- bleaching needle-point leaf pulp is discongested and is beaten using double plate mill beater, beating consistency 4%, the beating degree after mashing
It is respectively 75 ° of SR, 10g with weight in wet base；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, and fiber number is
1.7dtex.Two kinds of fibers are mixed, after mixing wood pulp and PET polyester fiber account for respectively fiber over dry total amount 50%,
50%, slurry concentration is 1% after mixing, and after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, so
It by squeezing, drying, spraying coating, drying, batches and obtains finished product after cutting, coating fluid is polyvinyl alcohol water solution, quality
Concentration is 2.5%, and coating weight is 3% of paper absolute dry mass after being coated with.
Embodiment 8
Non- bleaching needle-point leaf pulp is discongested and is beaten using double plate mill beater, beating consistency 4%, the beating degree after mashing
It is respectively 75 ° of SR, 10g with weight in wet base；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, and fiber number is
1.7dtex.Two kinds of fibers are mixed, after mixing wood pulp and PET polyester fiber account for respectively fiber over dry total amount 30%,
70%, slurry concentration is 1% after mixing, and after mixing, by cylinder forming, Top wire former concentration is 0.05% to two kinds of fibers, so
It by squeezing, drying, spraying coating, drying, batches and obtains finished product after cutting, coating fluid is polyvinyl alcohol water solution, quality
Concentration is 3.0%, and coating weight is 3.6% of paper absolute dry mass after being coated with.
Embodiment 9
Non- bleaching needle-point leaf pulp is discongested and is beaten using double plate mill beater, beating consistency 4%, the beating degree after mashing
It is respectively 65 ° of SR, 12g with weight in wet base；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, and fiber number is
0.8dtex.Two kinds of fibers are mixed, non-bleaching needle-point leaf pulp slurry and PET polyester fiber account for fiber over dry respectively after mixing
50%, the 50% of total amount, slurry concentration is 1% after mixing, and two kinds of fibers after mixing, pass through cylinder forming, Top wire former concentration
Be 0.05%, then through squeezing, drying, dip coated, drying, batch and obtain after cutting finished product, coating fluid is polyvinyl alcohol water
Solution, mass concentration 2.5%, coating weight are 4% of paper absolute dry mass after being coated with.
Embodiment 10
Non- bleaching needle-point leaf pulp is discongested and is beaten using double plate mill beater, beating consistency 4%, the beating degree after mashing
It is respectively 65 ° of SR, 12g with weight in wet base；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, and fiber number is
0.8dtex.Two kinds of fibers are mixed, non-bleaching needle-point leaf pulp slurry and PET polyester fiber account for fiber over dry respectively after mixing
30%, the 70% of total amount, slurry concentration is 1% after mixing, and two kinds of fibers after mixing, pass through cylinder forming, Top wire former concentration
Be 0.05%, then through squeezing, drying, dip coated, drying, batch and obtain after cutting finished product, coating fluid is polyvinyl alcohol water
Solution, mass concentration 3%, coating weight are 5% of paper absolute dry mass after being coated with.
Embodiment 11
Non- bleaching needle-point leaf pulp is discongested and is beaten using double plate mill beater, beating consistency 4%, the beating degree after mashing
It is respectively 75 ° of SR, 10g with weight in wet base；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, and fiber number is
1.7dtex.Two kinds of fibers are mixed, non-bleaching needle-point leaf pulp slurry and PET polyester fiber account for fiber over dry respectively after mixing
50%, the 50% of total amount, slurry concentration is 1% after mixing, and two kinds of fibers after mixing, pass through cylinder forming, Top wire former concentration
Be 0.05%, then through squeezing, drying, dip coated, drying, batch and obtain after cutting finished product, coating fluid is polyvinyl alcohol water
Solution, mass concentration 2.5%, coating weight are 4% of paper absolute dry mass after being coated with.
Embodiment 12
Non- bleaching needle-point leaf pulp is discongested and is beaten using double plate mill beater, beating consistency 4%, the beating degree after mashing
It is respectively 75 ° of SR, 10g with weight in wet base；After PET polyester fiber is dispersed, starching dense is 2%, fibre length 6mm, and fiber number is
1.7dtex.Two kinds of fibers are mixed, non-bleaching needle-point leaf pulp slurry and PET polyester fiber account for fiber over dry respectively after mixing
30%, the 70% of total amount, slurry concentration is 1% after mixing, and two kinds of fibers after mixing, pass through cylinder forming, Top wire former concentration
Be 0.05%, then through squeezing, drying, dip coated, drying, batch and obtain after cutting finished product, coating fluid is polyvinyl alcohol water
Solution, mass concentration 3%, coating weight are 5% of paper absolute dry mass after being coated with.
Above-mentioned each test data for exempting from carbonization solid electrolytic capacitor paper is as follows:
Claims (10)
1. one kind is enhanced to exempt from the solid electrolytic capacitor paper that is carbonized, which is characterized in that the raw material of the electrolytic capacitor paper is by wood pulp
It is formed with chemical fibre；The wood pulp includes non-bleaching needle-point leaf pulp, bleaching needle-point leaf pulp, non-bleached hardwood pulp, bleaching
One or more of hardwood pulp, straw pulp, the beating degree of wood pulp are 30 ~ 90 ° of SR, and weight in wet base is 3 ~ 30g；The chemical fibre
Including one or more of polyester fiber, Fypro, polyolefine fiber, vinylon fibre and polyacrylonitrile fibre, chemistry
The length of fiber is 1.5 ~ 15mm, and fiber number is 0.1 ~ 3dtex；By dry mass percentages, wood pulp is 10 ~ 80%, chemical fibre
It is 20 ~ 90%.
2. one kind according to claim 1 is enhanced to exempt from the solid electrolytic capacitor paper that is carbonized, which is characterized in that by dry matter
Percentages are measured, wood pulp is 30 ~ 70%, and chemical fibre is 30 ~ 70%.
3. one kind according to claim 1 is enhanced to exempt from the solid electrolytic capacitor paper that is carbonized, which is characterized in that wood pulp is beaten
The degree of beating is 60 ~ 80 ° of SR, and weight in wet base is 8 ~ 15g.
4. one kind according to claim 1 is enhanced to exempt from the solid electrolytic capacitor paper that is carbonized, which is characterized in that chemical fibre
Length be 3 ~ 10mm, fiber number be 0.5 ~ 2.5dtex.
5. one kind according to claim 1 is enhanced to exempt from the solid electrolytic capacitor paper that is carbonized, which is characterized in that the electricity
The surface spray of electrolytic capacitor paper sprays or dip coated has enhancement layer, and coating weight accounts for the 1 ~ 10% of paper absolute dry mass after coating.
6. one kind according to claim 5 is enhanced to exempt from the solid electrolytic capacitor paper that is carbonized, which is characterized in that spraying coating
The ingredient of liquid or on-line coater liquid is one or more of polyvinyl alcohol and its derivative, polyacrylamide and starch.
7. a kind of prepare enhanced described in claim 1 ~ 6 any one claim exempts from the solid electrolytic capacitor paper that is carbonized
Method, which is characterized in that this method includes the following steps:
1) dispersion is discongested after jute pulp being added water, obtains slurry A；
2) chemical fibre is uniformly dispersed, obtains slurry B；
3) slurry A and slurry B is sufficiently mixed, and obtains mixed slurry；
4) mixed slurry is subjected to online drainage and formation, using squeezing, drying, batches and cut, obtain enhanced exempting to be carbonized
Solid electrolytic capacitor paper.
8. the method according to the description of claim 7 is characterized in that step 1) beating equipment is mill beater, beating consistency
It is 1 ~ 10%.
9. Top wire former is dense the method according to the description of claim 7 is characterized in that forming is manufactured paper with pulp using cylinder in step 4)
Degree is 0.01 ~ 0.5%.
10. the method according to the description of claim 7 is characterized in that step 4) squeezing after by spraying coating, then dry,
Or it is dry after by dip coated, the coating fluid mass concentration of then re-dry, spraying coating and dip coated is 0.1 ~ 10%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056528.5A CN108978322A (en) | 2018-09-11 | 2018-09-11 | One kind is enhanced to exempt from the solid electrolytic capacitor paper and preparation method thereof that is carbonized |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056528.5A CN108978322A (en) | 2018-09-11 | 2018-09-11 | One kind is enhanced to exempt from the solid electrolytic capacitor paper and preparation method thereof that is carbonized |
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| Publication Number | Publication Date |
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| CN108978322A true CN108978322A (en) | 2018-12-11 |
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ID=64546023
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|---|---|---|---|
| CN201811056528.5A Pending CN108978322A (en) | 2018-09-11 | 2018-09-11 | One kind is enhanced to exempt from the solid electrolytic capacitor paper and preparation method thereof that is carbonized |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109577102A (en) * | 2018-12-19 | 2019-04-05 | 浙江莱勒克纸业有限公司 | A kind of electrolytic capacitor paper and preparation method thereof |
| CN111608002A (en) * | 2020-04-17 | 2020-09-01 | 仙鹤股份有限公司 | Preparation method of carbonization-free solid capacitor paper |
| CN111705542A (en) * | 2020-05-27 | 2020-09-25 | 仙鹤股份有限公司 | Preparation method of paster capacitor paper |
| CN111926618A (en) * | 2020-08-05 | 2020-11-13 | 中轻特种纤维材料有限公司 | Preparation method of diaphragm paper for gold capacitor |
| CN114351499A (en) * | 2021-12-31 | 2022-04-15 | 浙江凯恩新材料有限公司 | Low-tightness carbonization-free solid electrolytic capacitor paper and preparation method and application thereof |
| CN114892448A (en) * | 2022-06-13 | 2022-08-12 | 万国纸业太阳白卡纸有限公司 | Paper and preparation method thereof |
| CN114922002A (en) * | 2022-04-13 | 2022-08-19 | 株洲时代新材料科技股份有限公司 | Pressure-resistant capacitor paper and preparation method thereof |
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| CN109577102A (en) * | 2018-12-19 | 2019-04-05 | 浙江莱勒克纸业有限公司 | A kind of electrolytic capacitor paper and preparation method thereof |
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| CN111608002A (en) * | 2020-04-17 | 2020-09-01 | 仙鹤股份有限公司 | Preparation method of carbonization-free solid capacitor paper |
| CN111705542A (en) * | 2020-05-27 | 2020-09-25 | 仙鹤股份有限公司 | Preparation method of paster capacitor paper |
| CN111705542B (en) * | 2020-05-27 | 2022-02-15 | 仙鹤股份有限公司 | Preparation method of paster capacitor paper |
| CN111926618A (en) * | 2020-08-05 | 2020-11-13 | 中轻特种纤维材料有限公司 | Preparation method of diaphragm paper for gold capacitor |
| CN114351499A (en) * | 2021-12-31 | 2022-04-15 | 浙江凯恩新材料有限公司 | Low-tightness carbonization-free solid electrolytic capacitor paper and preparation method and application thereof |
| CN114922002A (en) * | 2022-04-13 | 2022-08-19 | 株洲时代新材料科技股份有限公司 | Pressure-resistant capacitor paper and preparation method thereof |
| CN114892448A (en) * | 2022-06-13 | 2022-08-12 | 万国纸业太阳白卡纸有限公司 | Paper and preparation method thereof |
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Application publication date: 20181211 |