CN104988809B - A kind of high voltage withstanding electrolytic capacitor paper and preparation method thereof - Google Patents

A kind of high voltage withstanding electrolytic capacitor paper and preparation method thereof Download PDF

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Publication number
CN104988809B
CN104988809B CN201510359165.2A CN201510359165A CN104988809B CN 104988809 B CN104988809 B CN 104988809B CN 201510359165 A CN201510359165 A CN 201510359165A CN 104988809 B CN104988809 B CN 104988809B
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pulp
paper
electrolytic capacitor
weight
parts
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CN104988809A (en
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严永平
陈万平
雷荣
张程伟
占浩
林晓毅
朱素梅
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Zhejiang Kaien New Material Co ltd
Zhejiang Kan Special Paper Co ltd
Zhuhai Gree Xinyuan Electronics Co Ltd
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KAIEN SPECIAL MATERIALS CO Ltd ZHEJIANG
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Abstract

The present invention relates to a kind of electrolytic capacitor paper and preparation method thereof, the raw paper pulp of the electrolytic capacitor paper is made up of following slurry:Insulation pulps, Cotton Pulp and jute pulp;Described Cotton Pulp and jute pulp are at least from one kind, and body paper is compound obtained with insulation pulps after Cotton Pulp and/or jute pulp copy paper.The present invention is as a result of above-mentioned technical scheme, production and follow-up coating waste water by body paper, the high pressure resistant electrolytic capacitor paper obtained, and having preferable intensity, soft, good water imbibition, good loss value, excellent proof voltage energy, proof voltage can increase more than 100V/mm.

Description

A kind of high voltage withstanding electrolytic capacitor paper and preparation method thereof
Technical field
The present invention relates to a kind of electrolytic capacitor paper and preparation method thereof.
Background technology
Electrolytic capacitor paper is the indispensable material of electrolytic capacitor, with the development of electronics industry, and capacitor is being protected Hold its capacity, loss value it is constant on the premise of for proof voltage requirement also more and more higher, at present in the raw material needed for production The requirement of extra-high voltage capacitors is increasingly difficult in adapt to, therefore finds a kind of new material and new manufacture method as electrolysis electricity The new direction of container products innovation.
Chinese invention patent application(Application number:CN200510060448.3-the applying date:2005.08.23 )Disclose One kind is used to strengthen pressure-resistant performance and drops low-loss electrolytic capacitor paper.The electrolytic capacitor paper is added ultra-fine by pulp material processed Glass microfiber copy paper is made, and the addition of described superfine glass microfibre is the 5%~80% of electrolytic capacitor paper weight, A diameter of 0.1 μm~10 μm of superfine glass microfibre.The present invention is past using in conventional electrolytic capacitor paper manufacturing process Superfine glass microfibre is added in slurry.
Chinese invention patent application(Application number:CN200310109194.0-the applying date:2003.12.09 )Disclose A kind of electrolytic capacitor paper, is 1 layer of Withstand voltage layer and multi-layer absorber layer composition using sandwich construction, the paper pulp of Withstand voltage layer paper is selected from One or more mixing in wood pulp, Agavaceae fiber, grass fiber;Absorbed layer paper can be one or more layers structure, its One or more mixing of the paper pulp in bast-fibre, bast fiber, grass fiber.
Chinese invention patent application(Application number:CN200910154058.0-the applying date:2009.10.23 )Disclose A kind of super electrolytic capacitor paper, is made up of, by weight percentage pineapple flaxen fiber pineapple flaxen fiber and tencel fiber copy paper For 10~80%, tencel fiber is 20~90%.
Above-mentioned various electrolytic capacitors realize that enhancing is pressure-resistant by setting sandwich construction or adding other compositions Performance, does not there is a kind of high voltage withstanding electrolytic capacitor paper come made from using conventional paper pulp material also at present.
The content of the invention
In order to solve above-mentioned technical problem, there is relatively high voltage withstanding electricity it is an object of the present invention to provide a kind of Electrolytic capacitor paper, another object of the present invention is to provide the preparation method of above-mentioned electrolytic capacitor paper.
In order to realize first above-mentioned purpose, present invention employs following technical scheme:
A kind of high voltage withstanding electrolytic capacitor paper, the raw paper pulp of the electrolytic capacitor paper by following parts by weight slurry group Into:
40 ~ 100 parts of insulation pulps
0 ~ 40 part of Cotton Pulp
0 ~ 60 part of jute pulp;
Described Cotton Pulp and jute pulp at least from one kind, body paper after Cotton Pulp and/or jute pulp copy paper with insulation pulps It is compound to be made.
Preferably, the raw paper pulp of the electrolytic capacitor paper is made up of the slurry of following parts by weight:
10 ~ 30 parts of Cotton Pulp
50 ~ 90 parts of insulation pulps.
Preferably, the raw paper pulp of the electrolytic capacitor paper is made up of the slurry of following parts by weight:
10 ~ 50 parts of jute pulp
50 ~ 90 parts of insulation pulps.
Preferably, jute pulp include sisal hemp, manila pulp, jute slurry, flax pulp, bluish dogbane slurry, wild goose latex, Chinese jute pulp, Pineapple leaves are starched and one or more mixing in wingceltis latex.
Preferably, the electrolytic capacitor paper also includes the low chlorine wet strength agent that dry pulp weighs 1 ~ 6%;Preferably, the low chlorine Wet strength agent is non-epoxychloropropane type wet strength agent.
Preferably, the electrolytic capacitor paper is obtained by body paper by coating, positive coating weight is 5 ~ 25g/m2, reverse side painting Cloth amount is 0 ~ 10g/m2.As further preferably, the coating fluid of coating is PVA and PVA derivatives, PVC and its derivative, PVDC or EVOH。
In order to realize second above-mentioned purpose, present invention employs following technical scheme:
A kind of method for preparing described high voltage withstanding electrolytic capacitor paper, this method comprises the following steps:
1)After 0 ~ 40 parts by weight Cotton Pulp and/or the jute pulp of 0 ~ 60 parts by weight, 40 ~ 100 parts by weight of insulation wood pulps add water 2.5 ~ 5.0% mass concentration original slurry material is made;
2)The jute pulp original slurry material of 0 ~ 40 parts by weight Cotton Pulp and/or 0 ~ 60 parts by weight obtains matter by beater or fiberizer Measure concentration 3.0 ~ 5.0%, 18 ~ 96 ° of SR of beating degree, 2.5 ~ 15g of weight in wet base slurry A;
3)Dry pulp is added in slurry A to weigh after 1 ~ 6% low chlorine wet strength agent, it is through overmolding and compound with insulation pulps layer, it is combined Afterwards body paper B is obtained by squeezing, drying and batch;
4)Body paper B after coating, drying, press polish, batch and cutting processing obtain it is high pressure resistant coating electrolysis electricity Container paper.
Preferably, mashing is separately beaten according to type of stock, each beating degree is respectively:55 ~ 96 ° of SR of wood pulp, weight in wet base 2.5 ~ 6.0g;Cotton Pulp 20 ~ 65 ° of SR, 2.5 ~ 6.0g of weight in wet base;Jute pulp 18 ~ 50 ° of SR, 4.5 ~ 15g of weight in wet base.
Preferably, described mashing mode, which includes the mashing of hollander free type, single or double mill, glues shape defibrination In one kind.Described coating method is included one in scraper type coating, metering rod coating, air-blade type coating and impregnated coating Kind.
The present invention as a result of above-mentioned technical scheme, production and follow-up coating waste water by body paper, acquisition it is resistance to High-voltage electrolysis capacitor paper, and have preferable intensity, soft, good water imbibition, good loss value, excellent resistance to electricity Performance is pressed, proof voltage can increase more than 100V/mm.
Embodiment
Embodiment 1
A kind of high voltage withstanding electrolytic capacitor paper, the raw paper pulp of the electrolytic capacitor paper by following parts by weight slurry group Into:
20 parts of Cotton Pulp
80 parts of insulation pulps.
Insulation pulps and the Cotton Pulp degree of beating are respectively that 65 ° of SR and 5.5g, 40 ° of SR and 6g, insulation pulps pass through 6 with weight in wet base Platform single disc refiner defibrination mode is carried out, and refining concentration is 3.5%.Cotton Pulp into slurry be beaten in hollander with free type into OK, beating consistency is 2.5%, Cotton Pulp mashing after add paper pulp oven-dry weight 6% low chlorine wet strength agent, through overmolding and with insulation Wood pulp layer is combined, and obtains body paper B by squeezing, drying and batch after being combined, its quantification of 35g/m2
Body paper B is carried out by gauge stick coating method, coating weight front 5.5g/m2, reverse side 1g/m2.Coating fluid is PVA's Carboxy derivatives.Through drying, press polish and batch and cut and obtain finished product after coating.
Embodiment 2
A kind of high voltage withstanding electrolytic capacitor paper, the raw paper pulp of the electrolytic capacitor paper by following parts by weight slurry group Into:
30 parts of Cotton Pulp
70 parts of insulation pulps.
Insulation pulps and the Cotton Pulp degree of beating are respectively that 60 ° of SR and 5.5g, 50 ° of SR and 5g, insulation pulps pass through 6 with weight in wet base Platform single disc refiner defibrination mode is carried out, and refining concentration is 3.5%.Cotton Pulp into slurry be beaten in hollander with free type into OK, beating consistency is 2.5%, Cotton Pulp mashing after add paper pulp oven-dry weight 5% low chlorine wet strength agent, through overmolding and with insulation Wood pulp layer is combined, and obtains body paper B by squeezing, drying and batch after being combined, its quantification of 35g/m2
Body paper B is carried out by gauge stick coating method, coating weight front 6.0g/m2, reverse side 1g/m2.Coating fluid is PVA's Carboxy derivatives.Through drying, press polish and batch and cut and obtain finished product after coating.
Embodiment 3
A kind of high voltage withstanding electrolytic capacitor paper, the raw paper pulp of the electrolytic capacitor paper by following parts by weight slurry group Into:
40 parts of Cotton Pulp
60 parts of insulation pulps.
Insulation pulps and the Cotton Pulp degree of beating are respectively that 75 ° of SR and 5.5g, 40 ° of SR and 4.0g, insulation pulps pass through with weight in wet base 6 single disc refiner defibrination modes are carried out, and refining concentration is 3.5%.Cotton Pulp into slurry be beaten in hollander with free type into OK, beating consistency is 2.5%, Cotton Pulp mashing after add paper pulp oven-dry weight 5% low chlorine wet strength agent, through overmolding and with insulation Wood pulp layer is combined, and obtains body paper B by squeezing, drying and batch after being combined, its quantification of 35g/m2
Body paper B is carried out by gauge stick coating method, coating weight front 6.0g/m2, reverse side 1g/m2.Coating fluid is PVA's Carboxy derivatives.Through drying, press polish and batch and cut and obtain finished product after coating.
Embodiment 4
A kind of high voltage withstanding electrolytic capacitor paper, the raw paper pulp of the electrolytic capacitor paper by following parts by weight slurry group Into:
20 parts of jute pulp
80 parts of insulation pulps.
Insulation pulps and jute pulp degree are respectively that 65 ° of SR and 5.5g, 40 ° of SR and 8g, insulation pulps pass through 6 lists with weight in wet base Mill defibrination mode is carried out, and refining concentration is 3.5%.Cotton Pulp is carried out into slurry in hollander with free type mashing, is beaten Starch concentration be 2.5%, jute pulp mashing after add paper pulp oven-dry weight 5% low chlorine wet strength agent, through overmolding and with insulation pulps layer It is compound, body paper B is obtained by squeezing, drying and batch after being combined, its quantification of 35g/m2
Body paper B is carried out by gauge stick coating method, coating weight front 5.5g/m2, reverse side 1g/m2.Coating fluid is PVA's Carboxy derivatives.Through drying, press polish and batch and cut and obtain finished product after coating.
Embodiment 5
A kind of high voltage withstanding electrolytic capacitor paper, the raw paper pulp of the electrolytic capacitor paper by following parts by weight slurry group Into:
30 parts of jute pulp
70 parts of insulation pulps.
Insulation pulps and jute pulp degree are respectively that 65 ° of SR and 5.5g, 40 ° of SR and 10g, insulation pulps pass through 6 lists with weight in wet base Mill defibrination mode is carried out, and refining concentration is 3.5%.Cotton Pulp is carried out into slurry in hollander with free type mashing, is beaten Starch concentration be 2.5%, jute pulp mashing after add paper pulp oven-dry weight 5% low chlorine wet strength agent, through overmolding and with insulation pulps layer It is compound, body paper B is obtained by squeezing, drying and batch after being combined, its quantification of 35g/m2
Body paper B is carried out by gauge stick coating method, coating weight front 6.0g/m2, reverse side 1g/m2.Coating fluid is PVA's Carboxy derivatives.Through drying, press polish and batch and cut and obtain finished product after coating.
Embodiment 6
A kind of high voltage withstanding electrolytic capacitor paper, the raw paper pulp of the electrolytic capacitor paper by following parts by weight slurry group Into:
40 parts of jute pulp
60 parts of insulation pulps.
Insulation pulps and jute pulp degree are respectively that 65 ° of SR and 5.5g, 35 ° of SR and 12g, insulation pulps pass through 6 lists with weight in wet base Mill defibrination mode is carried out, and refining concentration is 3.5%.Cotton Pulp is carried out into slurry in hollander with free type mashing, is beaten Starch concentration be 2.5%, jute pulp mashing after add paper pulp oven-dry weight 5% low chlorine wet strength agent, through overmolding and with insulation pulps layer It is compound, body paper B is obtained by squeezing, drying and batch after being combined, its quantification of 35g/m2
Body paper B is carried out by gauge stick coating method, coating weight front 6.0g/m2, reverse side 1g/m2.Coating fluid is PVA's Carboxy derivatives.Through drying, press polish and batch and cut and obtain finished product after coating.
Embodiment 7
A kind of high voltage withstanding electrolytic capacitor paper, the raw paper pulp of the electrolytic capacitor paper by following parts by weight slurry group Into:
20 parts of Cotton Pulp
30 parts of jute pulp
50 parts of insulation pulps.
Insulation pulps, Cotton Pulp and jute pulp degree and weight in wet base be respectively, 65 ° of SR and 5.5g, 50 ° of SR and 6g, 40 ° of SR and 10g Insulation pulps are carried out by 6 single disc refiner defibrination modes, and refining concentration is 3.5%.Cotton Pulp is used into slurry in hollander Free type mashing is carried out, and beating consistency is 2.5%, and the 5% low chlorine that paper pulp oven-dry weight is added after Cotton Pulp, jute pulp mashing is wet strong Agent, it is through overmolding and compound with insulation pulps layer, body paper B is obtained by squeezing, drying and batch after being combined, its quantification of 35g/ m2
Body paper B is carried out by gauge stick coating method, coating weight front 6.0g/m2, reverse side 1g/m2.Coating fluid is PVA's Carboxy derivatives.Through drying, press polish and batch and cut and obtain finished product after coating.
The test data of each electrolytic capacitor paper of above-described embodiment 1 ~ 7 is as follows:

Claims (7)

1. a kind of high voltage withstanding electrolytic capacitor paper, it is characterised in that the raw paper pulp of the electrolytic capacitor paper is by following parts by weight Slurry composition:
40 ~ 100 parts of insulation pulps
10 ~ 40 parts of Cotton Pulp
0 ~ 60 part of jute pulp;
The electrolytic capacitor paper also include dry pulp weigh 1 ~ 6% low chlorine wet strength agent, body paper after Cotton Pulp and jute pulp copy paper with insulation Wood pulp is compound to be made;Described electrolytic capacitor paper is obtained by body paper by coating, and positive coating weight is 5 ~ 25g/m2, reverse side painting Cloth amount is 0 ~ 10g/m2;The coating fluid of coating be PVA and PVA derivatives, PVC and its derivative, PVDC or EVOH one kind or Several mixtures.
2. a kind of high voltage withstanding electrolytic capacitor paper according to claim 1, it is characterised in that the electrolytic capacitor paper Raw paper pulp is made up of the slurry of following parts by weight:
10 ~ 30 parts of Cotton Pulp
50 ~ 90 parts of insulation pulps.
3. a kind of high voltage withstanding electrolytic capacitor paper according to claim 1, it is characterised in that jute pulp includes sisal hemp, horse Buddhist nun Draw one or more mixing in jute pulp, jute slurry, flax pulp, bluish dogbane slurry and Chinese jute pulp.
4. a kind of high voltage withstanding electrolytic capacitor paper according to claim 1 or 2, it is characterised in that the low chlorine wet strength agent For non-epoxychloropropane type wet strength agent.
5. a kind of method of the high voltage withstanding electrolytic capacitor paper prepared described in claim 1, it is characterised in that this method includes Following step:
1)By 10 ~ 40 parts by weight Cotton Pulps, the jute pulp of 0 ~ 60 parts by weight, 40 ~ 100 parts by weight of insulation wood pulps add water after be made 2.5 ~ 5.0% mass concentration original slurry material;
2)It is dense that the jute pulp original slurry material of 10 ~ 40 parts by weight Cotton Pulps and 0 ~ 60 parts by weight obtains quality by beater or fiberizer Degree 3.0 ~ 5.0%, 18 ~ 96 ° of SR of beating degree, 2.5 ~ 15g of weight in wet base slurry A;
3)Dry pulp is added in slurry A to weigh after 1 ~ 6% low chlorine wet strength agent, it is through overmolding and compound with insulation pulps layer, passed through after being combined Cross to squeeze, dry and batch and obtain body paper B;
4)Body paper B after coating, drying, press polish, batch and cutting processing obtain high voltage withstanding electrolytic capacitor paper.
6. method according to claim 5, it is characterised in that:Mashing is separately beaten according to type of stock, each beating degree difference For:Wood pulp 55 ~ 96 ° of SR, 2.5 ~ 6.0g of weight in wet base;Cotton Pulp 20 ~ 65 ° of SR, 2.5 ~ 6.0g of weight in wet base;18 ~ 50 ° of SR of jute pulp, weight in wet base 4.5~15g。
7. the method according to claim 5 or 6, it is characterised in that:Mashing mode is beaten including hollander free type Slurry, single or double mill glue a kind of in shape defibrination;Coating method includes scraper type coating, metering rod coating, air-blade type coating and soaked It is a kind of in the coating of stain formula.
CN201510359165.2A 2015-06-26 2015-06-26 A kind of high voltage withstanding electrolytic capacitor paper and preparation method thereof Active CN104988809B (en)

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Denomination of invention: High voltage resistant electrolytic capacitor paper and preparation method thereof

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