CN100552840C - A kind of electrolytic capacitor paper - Google Patents
A kind of electrolytic capacitor paper Download PDFInfo
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- CN100552840C CN100552840C CNB2005100604483A CN200510060448A CN100552840C CN 100552840 C CN100552840 C CN 100552840C CN B2005100604483 A CNB2005100604483 A CN B2005100604483A CN 200510060448 A CN200510060448 A CN 200510060448A CN 100552840 C CN100552840 C CN 100552840C
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Abstract
The present invention relates to a kind of electrolytic capacitor paper, relate in particular to a kind of be used to strengthen withstand voltage properties and the electrolytic capacitor paper that reduces the wastage.This electrolytic capacitor paper adds the superfine glass microfibre by the system pulp material and copies made of paper getting, and the addition of described superfine glass microfibre is 5%～80% of an electrolytic capacitor paper weight, and the diameter of superfine glass microfibre is 0.1 μ m～10 μ m.The present invention adopts in the electrolytic capacitor paper manufacture process of routine, adds the superfine glass microfibre in slurry.Utilize the special performance of superfine glass microfibre, improve the proof voltage ability of electrolytic capacitor paper, and reduced its impedance, improve electric property, improve the life-span of electrolytic capacitor, reduce the electric energy loss of electrolytic capacitor.
Description
Technical field
The present invention relates to a kind of electrolytic capacitor paper, relate in particular to a kind of be used to strengthen withstand voltage properties and the electrolytic capacitor paper that reduces the wastage.
Background technology
Electrolytic capacitor paper is to be used between the anode and negative electrode of electrolytic capacitor, and it not only can prevent the two poles of the earth contact, and can also keep electrolyte, also claims the capacitor barrier paper.Electrolytic capacitor paper and common paper are different, it for paper require as follows: (1), purity want high; (2), papery wants evenly, thickness and tightness require homogeneous, fiber alignment wants evenly machinery, the electrical strength of abundant necessity to be arranged; (3), absorbability will get well, and can adsorb enough electrolyte; (4), withstand voltage properties preferably to be arranged.In aluminium electrolytic capacitor, because it is used in the difference of voltage in the circuit, aluminium electroloysis is broadly divided into two of high pressure and low pressure, and corresponding, the paper that is applied to electrolytic capacitor also is divided into high pressure and low pressure, is called high-voltage electrolysis capacitor paper and low-voltage electrolytic capacitor paper.In number of patent application is 200310109194.0 Chinese patent, disclosed a kind of electrolytic capacitor paper, sandwich construction has been adopted in this invention, its absorbed layer also has the ability of stronger absorption electrolyte when making the resistance to pressure of capacitor good, improve electric property, improve the life-span of electrolytic capacitor, reduce the energy consumption of electrolytic capacitor.When treating withstand voltage problem, what this invention was taked is the beating degree that improves plant fiber material, the tightness of paper is risen, to improve the voltage endurance capability of electrolytic capacitor paper.But the beating degree of string is conditional, can not reach 100 degree, and the high degree of beating brings is high loss, is that capacitor institute is unacceptable.When treating the low-loss problem of capacitor, this patent of invention is the method with the beating degree that reduces string, but too reduce the beating degree of string, certainly will influence the intensity of page, bring difficulty for the manufacturing of capacitor, and string effect aspect the loss that reduces capacitor is limited.
Summary of the invention
In order to solve the technological deficiency that exists in the background technology, the objective of the invention is to be to provide a kind of withstand voltage properties good the electrolytic capacitor paper that electric energy loss is low.
The present invention has adopted following technical scheme to achieve the above object:
A kind of electrolytic capacitor paper adds the superfine glass microfibre by the system pulp material and copies made of paper getting, and the addition of described superfine glass microfibre is 5%～80% of an electrolytic capacitor paper weight, and the diameter of superfine glass microfibre is 0.1 μ m～10 μ m.
As preferably, the addition electrolytic capacitor paper weight of superfine glass microfibre be 10%-70%.As preferred again, the addition of superfine glass microfibre is 10%～50% of an electrolytic capacitor paper weight.
As preferably, the diameter of superfine glass microfibre is 0.1 μ m～1.0 μ m.As preferred again, the diameter of superfine glass microfibre is 0.2 μ m～0.6 μ m.
As preferably, described system pulp material is for insulation wood pulp, sisal hemp pulp, manila pulp, bluish dogbane slurry, jute slurry, flax pulp, big jute pulp, three fork latexes, structure latex, wingceltis latex, mulberry root bark pulp, Chinese alpine rush are starched, in the esparto pulp one or more.As preferred again, described system pulp material is insulation wood pulp or sisal hemp pulp.
The present invention adopts in the electrolytic capacitor paper manufacture process of routine, adds the superfine glass microfibre in slurry.Utilize the special performance of superfine glass microfibre, improve the proof voltage ability of electrolytic capacitor paper, and reduced its impedance, improve electric property, improve the life-span of electrolytic capacitor, reduce the electric energy loss of electrolytic capacitor.
Usually, superfine glass microfibre majority is cotton shape, its manufacture method generally has two kinds of flame method and centrifugal process: flame method is in being similar to the stove that reels off raw silk from cocoons of producing long glass fiber, with roller primary fiber is reeled off raw silk from cocoons, and at its forefront with coal gas or heavy oil flame jet, in its fusion, it is dispelled and makes mineral wool.The mineral wool diameter that this method is produced is very thin, and below 1 μ m, length is shorter greatly, and about 1/3mm, the BET surface area is approximately 2.0m
2/ g; Centrifugal process is that the glass of fusion is flowed directly in the high-speed rotary body of a side perforate, separates in the pore by centrifugal force and makes mineral wool.By contrast, the fiber diameter range that centrifugal process is made is bigger, and more than 1 μ m, length is about 1mm usually, and the BET surface area is at 0.5～0.6m
2Between/the g.The superfine glass microfibre that these two kinds of methods are produced all is fit to the present invention.
Simultaneously since the chemical analysis of superfine glass microfibre mainly by SiO
2, Al
2O
3, CaO, MgO, B
2O
3, R
2Formations such as O, wherein R represents Na or K.Its unique chemical, physical property have been determined, glass microfiber not only has good electric insulation intensity, high temperature resistant and good chemical stability (anti-various acid and solvent), also because its less fibre diameter, has bigger BET surface area, so the electrolytic capacitor paper with the method that adds the superfine glass microfibre is produced has very high fibre density and good absorbency.Utilize the glass microfiber diameter little simultaneously, surface area is big, fiber is rounded, these features that purity is high are applied on the electrolytic capacitor paper and will bring the variation of matter to electrolytic capacitor paper, will the density of electrolytic capacitor paper be risen, withstand voltage properties and anti-burr property improve, bigger specific surface makes the absorbability of paper better, and the performance of capacitor can improve, and highly purified glass fibre makes the impedance of paper can not rise because tightness raises again.
Embodiment
The invention will be further described below by specific embodiment and reference example, but the present invention is not limited by embodiment.
Reference example 1: the insulation wood pulp is crossed the making beating of disk mill to 94 ° of SR, and weight in wet base is 3.0g, copies paper with long mesh paper making machine.Batch after the oven dry, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.89g/cm
3, tensile strength is 1.96kN/m, and suction head vertically is 3mm/10min, laterally is 2mm/10min, and loss ratio is 2.65, and puncture voltage is 670V.
Reference example 2: sisal hemp pulp is pulled an oar to 35 ° of SR, and weight in wet base 14.5g copies paper with cylinder mould machine.Batch after the oven dry, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.54g/cm
3, tensile strength is 1.46kN/m, and suction head vertically is 22mm/10min, laterally is 18mm/10min, and loss ratio is 0.56, and puncture voltage is 470V.
Embodiment 1: the superfine glass microfibre of the 5% 0.2 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.89g/cm
3, tensile strength is 1.90kN/m, and suction head vertically is 4mm/10min, laterally is 3mm/10min, and loss ratio is 2.50, and puncture voltage is 675V.
Embodiment 2: the superfine glass microfibre of the 10% 0.2 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.91g/cm
3, tensile strength is 1.75kN/m, and suction head vertically is 8mm/10min, laterally is 6mm/10min, and loss ratio is 2.45, and puncture voltage is 700V.
Embodiment 3: the superfine glass microfibre of the 20% 0.2 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.90g/cm
3, tensile strength is 1.60kN/m, and suction head vertically is 14mm/10min, laterally is 10mm/10min, and loss ratio is 2.05, and puncture voltage is 760V.
Embodiment 4: the superfine glass microfibre of the 30% 0.2 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.85g/cm
3, tensile strength is 1.41kN/m, and suction head vertically is 18mm/10min, laterally is 15mm/10min, and loss ratio is 1.40, and puncture voltage is 850V.
Embodiment 5: the superfine glass microfibre of the 45% 0.2 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.80g/cm
3, tensile strength is 1.22kN/m, and suction head vertically is 21mm/10min, laterally is 17mm/10min, and loss ratio is 1.31, and puncture voltage is 900V.
Embodiment 6: the superfine glass microfibre of the 70% 0.2 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.65g/cm
3, tensile strength is 1.02kN/m, and suction head vertically is 24mm/10min, laterally is 20mm/10min, and loss ratio is 1.20, and puncture voltage is 910V.
Embodiment 7: the superfine glass microfibre of the 80% 0.2 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.60g/cm
3, tensile strength is 0.53kN/m, and suction head vertically is 25mm/10min, laterally is 20mm/10min, and loss ratio is 1.21, and puncture voltage is 840V.
Embodiment 8: the superfine glass microfibre of the 30% 0.1 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.80g/cm
3, tensile strength is 1.42kN/m, and suction head vertically is 18mm/10min, laterally is 16mm/10min, and loss ratio is 1.60, and puncture voltage is 810V.
Embodiment 9: the superfine glass microfibre of the 30% 0.5 μ m that is provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.83g/cm
3, tensile strength is 1.39kN/m, and suction head vertically is 16mm/10min, laterally is 14mm/10min, and loss ratio is 1.38, and puncture voltage is 845V.
Embodiment 10: the superfine glass microfibre of the 30% 1.0 μ m that provided by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 1, uses the same method and copy paper, after measured, the thickness of this paper is 40 μ m, and tightness reaches 0.80g/cm
3, tensile strength is 1.38kN/m, and suction head vertically is 18mm/10min, laterally is 15mm/10min, and loss ratio is 1.38, and puncture voltage is 650V.
Embodiment 11: the superfine glass microfibre in that the 30% 0.5 μ m that provides by Nanjing Chinese mugwort new glass microfibre Products Co., Ltd is provided in the slurry of reference example 2, and use the same method and copy paper, after measured, the thickness of this paper is 40 μ m, tightness reaches 0.39g/cm
3, tensile strength is 1.05kN/m, and suction head vertically is 32mm/10min, laterally is 26mm/10min, and loss ratio is 0.32, and puncture voltage is 510V.
Get the product of above reference example and embodiment and test (test result is as shown in table 1) with following method:
1, beating degree (° SR) and weight in wet base
Press GB3332-1982.The method of being put down in writing is implemented test.
2, quantitative
Implement test by the method that GB/T451.2-2002 put down in writing.
3, thickness
Implement test by the method that GB/T451.3-2002 put down in writing.
4, tensile strength
Implement test by the method that GB/T453-2002 put down in writing.
5, suction head
The method that GB/T461.1-2002 put down in writing is implemented test.
6, loss ratio
The thickness of copying with whole wood pulp is 40 μ m, and tightness is 0.65g/cm
3The time the loss (the ESR value is also referred to as tg δ value) of electrolytic capacitor paper be standard, obtain the ratio of various model electrolytic capacitor papers and its loss value.
With electrolytic capacitor paper be immersed in the ethylene glycol electrolyte that is dissolved with the ethanedioic acid ammonium (resistivity be 100 ohm/cm) in, use platinum electrode (5cm2) to clamp electrolytic capacitor paper again, press the 200g weight above, under 20 ± 1 ℃, AC10V, 100KHz condition, use ohmmeter, measure this interelectrode resistance, with the loss of expression paper in capacitor.
7, puncture voltage.In order to expression paper withstand voltage in capacitor.
Measure with method shown in the GB/T12656-1990.To be clipped in through the pattern of oven dry
Brass electrode between, lead to the into electric current of 50Hz, in the time of 10-20s, boost continuously, breakdown until pattern, the magnitude of voltage of note this moment.In order to expression paper withstand voltage in capacitor.
Table 1
Claims (5)
1. electrolytic capacitor paper, it is characterized in that this electrolytic capacitor paper adds the superfine glass microfibre by the system pulp material and copies made of paper getting, the addition of described superfine glass microfibre is 30%～80% of an electrolytic capacitor paper weight, the diameter of superfine glass microfibre is 0.1 μ m～0.6 μ m, and described system pulp material is one or more in insulation wood pulp, sisal hemp pulp, manila pulp, bluish dogbane slurry, jute slurry, flax pulp, big jute pulp, three fork latexes, structure latex, wingceltis latex, mulberry root bark pulp, Chinese alpine rush slurry, the esparto pulp.
2. a kind of electrolytic capacitor paper as claimed in claim 1, it is characterized in that the superfine glass microfibre addition electrolytic capacitor paper weight for 30%-70%.
3. a kind of electrolytic capacitor paper as claimed in claim 2, the addition that it is characterized in that the superfine glass microfibre is 30%～50% of an electrolytic capacitor paper weight.
4. a kind of electrolytic capacitor paper as claimed in claim 4, the diameter that it is characterized in that the superfine glass microfibre are 0.2 μ m～0.6 μ m.
5. a kind of electrolytic capacitor paper as claimed in claim 1 is characterized in that described system pulp material is insulation wood pulp or sisal hemp pulp.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100604483A CN100552840C (en) | 2005-08-23 | 2005-08-23 | A kind of electrolytic capacitor paper |
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|---|---|---|---|
| CNB2005100604483A CN100552840C (en) | 2005-08-23 | 2005-08-23 | A kind of electrolytic capacitor paper |
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| CN1921040A CN1921040A (en) | 2007-02-28 |
| CN100552840C true CN100552840C (en) | 2009-10-21 |
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|---|---|---|---|---|
| CN101696558B (en) * | 2009-10-23 | 2011-01-05 | 浙江凯恩特种材料股份有限公司 | Super electrolytic capacitor paper |
| CN107195460B (en) * | 2017-06-30 | 2022-10-18 | 肇庆绿宝石电子科技股份有限公司 | Novel lightning-proof aluminum electrolytic capacitor and preparation method thereof |
| CN110843278A (en) * | 2019-11-28 | 2020-02-28 | 深圳市柏瑞凯电子科技有限公司 | Electrolytic paper for preparing low equivalent series resistance and low leakage current solid aluminum capacitor |
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Effective date of registration: 20211009 Address after: 323300 Miao Gao Jie Dao Yuan Kou Cun, Suichang County, Lishui City, Zhejiang Province Patentee after: Zhejiang Kaien New Material Co.,Ltd. Patentee after: ZHEJIANG KAN SPECIAL PAPER CO.,LTD. Address before: 323300 108 Kaien Road, Suichang County, Zhejiang Province Patentee before: Zhejiang KAN Specialties Material Co.,Ltd. |
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Denomination of invention: An electrolytic capacitor paper Effective date of registration: 20230907 Granted publication date: 20091021 Pledgee: Industrial Commercial Bank of China Ltd. Suichang branch Pledgor: Zhejiang Kaien New Material Co.,Ltd. Registration number: Y2023330001977 |