CN104313937A - Carbon paper - Google Patents
Carbon paper Download PDFInfo
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- CN104313937A CN104313937A CN201410515309.4A CN201410515309A CN104313937A CN 104313937 A CN104313937 A CN 104313937A CN 201410515309 A CN201410515309 A CN 201410515309A CN 104313937 A CN104313937 A CN 104313937A
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Abstract
The invention relates to carbon paper. Chopped carbon fibers, vegetable fibers, thermal bonding fibers and carbon black are used as raw materials and are subjected to defibering, beating and proportioning, then the papermaking is carried out by a wet papermaking process, and then the carbon paper is made by coating hydrophobic paint. The carbon paper comprises the following raw materials in parts by weight: 65 to 75 parts of chopped carbon fiber, 10 to 15 parts of plant fibers, 10 to 15 parts of thermal bonding fibers and 0 to 10 parts of carbon black. Functions of the various raw materials of the carbon paper produced by the invention are compounded, so that various indexes such as conductivity, physical strength and uniform pore size distribution of the product are effectively controlled.
Description
Technical field
The present invention relates to the fender paper that a kind of carbon is made, belong to chemical field.
Background technology
At present, gas diffusion layers base material mainly contains carbon fiber paper, carbon fiber woven cloth, nonwoven fabric and carbon black paper etc., and what extensively adopt is high performance carbon paper.Carbon paper normally adds appropriate adhesive by carbon fiber and manufactures paper with pulp into paper, then dipping can carbonized resin, hot-press solidifying sizing, high temperature carbonization process makes.Carbon is porous material, there are very strong adsorption-decomposition function, damping, purification, deodorizing, far infrared and electronegative ion, with carbon filling ground and wall, because carbon regulates the west of moisture, suppress temperature rise and mould, microorganism procreation, play mildew-resistant, adjustment temperature effect, the anion interaction energy talked keeps comfortable pleasant, the ataraxia of house, carbon is again a kind of fabulous electric conductor, can block electromagnetic radiation, be conducive to health.
Summary of the invention
The present invention is achieved by the following technical solution:
A kind of carbon paper, described carbon paper with chopped carbon fiber, string, heat-bondable fiber and carbon black for raw material, wet papermaking process copy paper is used after discongesting, pull an oar and be with slurry, then make through water-repellent paint coating process, the proportioning of described each raw material is as follows with parts by weight: chopped carbon fiber 65 ~ 75 parts, 10 ~ 15 parts, string, heat-bondable fiber 10 ~ 15 parts and carbon black 0 ~ 10 part.As preferably, described chopped carbon fiber is polypropylene cyano group carbon fiber and/or asphalt base carbon fiber, and the distribution of lengths of chopped carbon fiber is between 1.0mm to 4.0mm, and resistivity is 0.001 to 0.02 Ω cm.The conductance that chopped carbon fiber is low can improve carbon paper conductance, and the length of chopped carbon fiber rationally can avoid wadding poly-, forms even page.
As preferably, described chopped carbon fiber, first through coupling agent modified process, can improve the stability of chopped carbon fiber Aqueous dispersions system.
As preferably, described string is softwood pulp fiber, and the length of this string is 1.5 ~ 4.5mm, and diameter is 40 ~ 55um.Select the softwood pulp fiber of above-mentioned length and diameter can ensure the better bond strength of carbon paper page.
As preferably, described heat-bondable fiber is polyethylene fiber, aramid fiber and Kodel 410
two kinds in fiber or whole combination.
As preferably, described carbon paper be quantitatively 40 ~ 120g/m
2, thickness is between 0.10 ~ 0.25mm, and porosity is 50 ~ 80%, and bulk density is 0.40 ~ 0.60g/cm
3, resistivity is 0.03 ~ 0.05 Ω cm.
The present invention compared with the existing technology has following beneficial effect:
(1) have employed wet-formed, hot pressing, production technology that coating combines, have technological process simple, be easy to control product quality, the features such as production process environmental protection, and institute produce can the material ratio of accurate each raw material, be conducive to control product quality;
(2) to carry out function composite for plurality of raw materials, and product is controlled effectively at indices such as electric conductivity, physical strength and uniform pore diameter distributions;
(3) adopt the ripe paper technologies such as wet-formed, dry and aft-loaded airfoil coating to prepare carbon paper completely, avoid high temperature carbonization and graphitization, fundamentally avoid and repeat power consumption;
(4) product of the present invention uses more convenient, just can directly as the base material preparing fuel cell electrode without the need to preliminary treatment.
Detailed description of the invention
Below by embodiment, the present invention is specifically described.
Embodiment 1:
A kind of carbon paper, described carbon paper is with polypropylene cyano group carbon fiber, softwood pulp fiber, polyethylene fiber, aramid fiber and carbon black are that raw material is through discongesting, making beating, rear wet papermaking process copy paper with slurry, then make through water-repellent paint coating process, the proportioning of described each raw material is as follows with parts by weight: 65 parts, polypropylene cyano group carbon fiber, softwood pulp fiber 15 parts, polyethylene fiber 10 parts, aramid fiber 5 parts and carbon black 5 parts, wherein the length of polypropylene cyano group carbon fiber is 1.0-3.0mm, resistivity is 0.001 Ω cm, the length of softwood pulp fiber is 1.5mm, diameter is 40um.
Embodiment 2:
A kind of carbon paper, described carbon paper is with polypropylene cyano group carbon fiber, asphalt base carbon fiber, softwood pulp fiber, polyethylene fiber, aramid fiber and carbon black are that raw material is through discongesting, making beating, rear wet papermaking process copy paper with slurry, then make through water-repellent paint coating process, the proportioning of described each raw material is as follows with parts by weight: 50 parts, polypropylene cyano group carbon fiber, asphalt base carbon fiber 20 parts, softwood pulp fiber 15 parts, polyethylene fiber 5 parts, aramid fiber 5 parts and carbon black 5 parts, wherein the length of chopped carbon fiber is 4.0mm, resistivity is 0.02 Ω cm, the length of softwood pulp fiber is 4.5mm, diameter is 55um.
Embodiment 3
A kind of carbon paper, described carbon paper with asphalt base carbon fiber, softwood pulp fiber, Kodel 410 fiber and carbon black for raw material through discongesting, pulling an oar, with slurry after use wet papermaking process copy paper, then make through water-repellent paint coating process, the proportioning of described each raw material is as follows with parts by weight: asphalt base carbon fiber 75 parts, softwood pulp fiber 10 parts, Kodel 410 fiber 10 parts and carbon black 5 parts, wherein the length of asphalt base carbon fiber is 1.0-3.0mm, resistivity is 0.001 Ω cm, the average length of softwood pulp fiber is 1.5mm, and diameter is 40um.
Other advantages of the present invention and change are apparent for a person skilled in the art.Therefore, the present invention is not limited to the specific detail that represents and describe and preferred embodiment here.Thus, various change can be carried out when not departing from the technical scope of the present invention or purport that are defined by claims.
Claims (2)
1. a carbon paper, it is characterized in that, described carbon paper with chopped carbon fiber, string, heat-bondable fiber and carbon black for raw material through discongesting, pulling an oar, with slurry after use wet papermaking process copy paper, then make through hydrophobic coating coating process, the proportioning of described each raw material is as follows with parts by weight: chopped carbon fiber 65 ~ 75 parts, 10 ~ 15 parts, string, heat-bondable fiber 10 ~ 15 parts and carbon black 0 ~ 10 part.
2. carbon paper according to claim 1, is characterized in that, described string is softwood pulp fiber, and the length of this string is 1.5 ~ 4.5mm, and diameter is 40 ~ 55um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515309.4A CN104313937A (en) | 2014-09-29 | 2014-09-29 | Carbon paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515309.4A CN104313937A (en) | 2014-09-29 | 2014-09-29 | Carbon paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104313937A true CN104313937A (en) | 2015-01-28 |
Family
ID=52369238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410515309.4A Pending CN104313937A (en) | 2014-09-29 | 2014-09-29 | Carbon paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104313937A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016174620A1 (en) * | 2015-04-29 | 2016-11-03 | Stora Enso Oyj | A ground cover mulch comprising carbon fiber |
| CN106835845A (en) * | 2016-12-30 | 2017-06-13 | 淄博欧木特种纸业有限公司 | Nanofiber carbon black conductive paper and preparation method thereof |
| CN107460777A (en) * | 2017-07-31 | 2017-12-12 | 华南理工大学 | A kind of preparation method of full carbon fibre composite paper |
| CN110129992A (en) * | 2019-06-04 | 2019-08-16 | 缪梦程 | A kind of fuel cell carbon fiber paper and preparation method thereof |
-
2014
- 2014-09-29 CN CN201410515309.4A patent/CN104313937A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016174620A1 (en) * | 2015-04-29 | 2016-11-03 | Stora Enso Oyj | A ground cover mulch comprising carbon fiber |
| CN106835845A (en) * | 2016-12-30 | 2017-06-13 | 淄博欧木特种纸业有限公司 | Nanofiber carbon black conductive paper and preparation method thereof |
| CN107460777A (en) * | 2017-07-31 | 2017-12-12 | 华南理工大学 | A kind of preparation method of full carbon fibre composite paper |
| CN110129992A (en) * | 2019-06-04 | 2019-08-16 | 缪梦程 | A kind of fuel cell carbon fiber paper and preparation method thereof |
| CN110129992B (en) * | 2019-06-04 | 2021-04-27 | 缪梦程 | Carbon fiber paper for fuel cell and preparation method thereof |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |
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| WD01 | Invention patent application deemed withdrawn after publication |