CN105887243A - Method for manufacturing carbon fibers - Google Patents
Method for manufacturing carbon fibers Download PDFInfo
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- CN105887243A CN105887243A CN201410793048.2A CN201410793048A CN105887243A CN 105887243 A CN105887243 A CN 105887243A CN 201410793048 A CN201410793048 A CN 201410793048A CN 105887243 A CN105887243 A CN 105887243A
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Abstract
The invention relates to a method for manufacturing carbon fibers. The method is characterized by comprising the following steps: withdrawing yarns; collecting the yarns; treating in a horizontal drying furnace; treating in a pre-oxidization furnace 1; treating in a pre-oxidization furnace 2; treating in a pre-oxidization furnace; treating in a low-temperature carbonization furnace; treating in a high-temperature carbonization furnace; carrying out surface treatment 1; carrying out surface treatment 2; washing with water; treating in the horizontal drying furnace; sizing; treating in a vertical drying furnace; and collecting the yarns. The method for manufacturing the carbon fibers is reasonable in procedures and low in manufacturing cost; and all parameters are matched and reasonably coordinated, and the quality of products and the production efficiency can be effectively improved.
Description
Technical field
The present invention relates to a kind of method making carbon fiber.
Background technology
Existing carbon fiber processing technology exists that procedure arrangement is unreasonable, operation is various, and technological parameter selects unreasonable, respectively
Technological parameter collocation is unreasonable and higher to operator's skill requirement so that production cost is higher, product quality is on the low side, finished product
Rate is the highest.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved be to provide a kind of operation rationally, manufacture
The carbon fiber processing technology of low cost.
For achieving the above object, the invention provides
A kind of method making carbon fiber, is characterized in that: comprise the steps:
Move back silk → line concentration → horizontal kiln → pre-oxidation furnace 1 → pre-oxidation furnace, 2 → pre-oxidation furnace → low-temperature carbonization furnace → high temperature carbonization furnace
→ surface processes 1 → surface and processes 2 → washing → horizontal kiln → starching → vertical drying stove → receipts silk；
1), pre-oxidation process
In preoxidation process, temperature is between 200 DEG C～300 DEG C, and when about 240 DEG C, oxygen content rises rapidly, and chemical reaction occurs.
During this, in burner hearth, temperature keeps uniformly, and has circulation air to take away impurity and the reaction heat such as the little molecule that produces in reaction, protects
Card pre-oxidation can be carried out continuously.The preoxidation process response time needs 80～100min.
2), low-temperature carbonization furnace temperature between 300 DEG C～800 DEG C, be divided into several temperature range, progressively to oxidization fiber in isolation
Carry out carburizing reagent under conditions of air, form primary random graphits structure.High temperature cabonization temperature at 1000 DEG C～1600 DEG C,
General at about 1400 DEG C.
3), surface processes
Use anode electrode oxidizing process, carry out surface process by the method for pulse electrifying so that carbon fiber surface occurs etching and production to contain
Oxygen functional group.Surface is the voltage of logical an about 10V in processing, and forms the electric current of about 25A.Use ammonium hydrogen carbonate Neutral Electrolysis
Matter carries out surface process.
4), washing
Carbon filament is carried out by water-washing process infusion process, washes, impurity such as the electrolyte on carbon filament surface for later sizing process
Prepare.In washing, water temperature is set in about 50 DEG C, afterwards the dry run of about 100 DEG C in addition.
5), after starching, through being dried (about 180 DEG C), receive silk and i.e. can get the carbon fiber of finished product.
The invention has the beneficial effects as follows: operation of the present invention is reasonable, low cost of manufacture, each parameter collocation reasonable coordination, it is possible to have
Improve product quality and production efficiency to effect.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
A kind of method making carbon fiber, is characterized in that: comprise the steps:
Move back silk → line concentration → horizontal kiln → pre-oxidation furnace 1 → pre-oxidation furnace, 2 → pre-oxidation furnace → low-temperature carbonization furnace → high temperature carbonization furnace
→ surface processes 1 → surface and processes 2 → washing → horizontal kiln → starching → vertical drying stove → receipts silk；
1), pre-oxidation process
In preoxidation process, temperature is between 200 DEG C～300 DEG C, and when about 240 DEG C, oxygen content rises rapidly, and chemical reaction occurs.
During this, in burner hearth, temperature keeps uniformly, and has circulation air to take away impurity and the reaction heat such as the little molecule that produces in reaction, protects
Card pre-oxidation can be carried out continuously.The preoxidation process response time needs 80～100min.
2), low-temperature carbonization furnace temperature between 300 DEG C～800 DEG C, be divided into several temperature range, progressively to oxidization fiber in isolation
Carry out carburizing reagent under conditions of air, form primary random graphits structure.High temperature cabonization temperature at 1000 DEG C～1600 DEG C,
General at about 1400 DEG C.
3), surface processes
Use anode electrode oxidizing process, carry out surface process by the method for pulse electrifying so that carbon fiber surface occurs etching and production to contain
Oxygen functional group.Surface is the voltage of logical an about 10V in processing, and forms the electric current of about 25A.Use ammonium hydrogen carbonate Neutral Electrolysis
Matter carries out surface process.
4), washing
Carbon filament is carried out by water-washing process infusion process, washes, impurity such as the electrolyte on carbon filament surface for later sizing process
Prepare.In washing, water temperature is set in about 50 DEG C, afterwards the dry run of about 100 DEG C in addition.
5), after starching, through being dried (about 180 DEG C), receive silk and i.e. can get the carbon fiber of finished product.
Claims (1)
1. the method making carbon fiber, is characterized in that: comprise the steps:
Move back silk → line concentration → horizontal kiln → pre-oxidation furnace 1 → pre-oxidation furnace, 2 → pre-oxidation furnace → low-temperature carbonization furnace → high temperature carbonization furnace
→ surface processes 1 → surface and processes 2 → washing → horizontal kiln → starching → vertical drying stove → receipts silk；
1), pre-oxidation process
In preoxidation process, temperature is between 200 DEG C～300 DEG C, and when about 240 DEG C, oxygen content rises rapidly, and chemical reaction occurs；
During this, in burner hearth, temperature keeps uniformly, and has circulation air to take away impurity and the reaction heat such as the little molecule that produces in reaction, protects
Card pre-oxidation can be carried out continuously；The preoxidation process response time needs 80～100min；
2), low-temperature carbonization furnace temperature between 300 DEG C～800 DEG C, be divided into several temperature range, progressively to oxidization fiber at isolation air
Under conditions of carry out carburizing reagent, form primary random graphits structure；High temperature cabonization temperature is at 1000 DEG C～1600 DEG C, typically
At about 1400 DEG C；
3), surface processes
Use anode electrode oxidizing process, carry out surface process by the method for pulse electrifying so that carbon fiber surface occurs etching and production to contain
Oxygen functional group；Surface is the voltage of logical an about 10V in processing, and forms the electric current of about 25A；Use ammonium hydrogen carbonate Neutral Electrolysis
Matter carries out surface process；
4), washing
Carbon filament is carried out by water-washing process infusion process, washes, impurity such as the electrolyte on carbon filament surface for later sizing process
Prepare；In washing, water temperature is set in about 50 DEG C, afterwards the dry run of about 100 DEG C in addition；
5), after starching, through being dried (about 180 DEG C), receive silk and i.e. can get the carbon fiber of finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793048.2A CN105887243A (en) | 2014-12-17 | 2014-12-17 | Method for manufacturing carbon fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793048.2A CN105887243A (en) | 2014-12-17 | 2014-12-17 | Method for manufacturing carbon fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105887243A true CN105887243A (en) | 2016-08-24 |
Family
ID=56700550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410793048.2A Pending CN105887243A (en) | 2014-12-17 | 2014-12-17 | Method for manufacturing carbon fibers |
Country Status (1)
| Country | Link |
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| CN (1) | CN105887243A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841801A (en) * | 2017-11-11 | 2018-03-27 | 龙邦复合材料有限公司 | Carbon fibre carbonizing and prepreg assembly line and its production technology |
| CN108539212A (en) * | 2018-04-04 | 2018-09-14 | 苏州舒广袖新能源科技有限公司 | A kind of preparation method of electrode used for all-vanadium redox flow battery |
| CN110396732A (en) * | 2019-08-23 | 2019-11-01 | 大同新成新材料股份有限公司 | A kind of processing technology of modified carbon fiber |
| CN110499551A (en) * | 2019-08-23 | 2019-11-26 | 大同新成新材料股份有限公司 | It is a kind of to damage small carbon fiber terylene short fiber production technology |
| CN111647973A (en) * | 2020-07-07 | 2020-09-11 | 北京化工大学常州先进材料研究院 | Preparation method of large-tow carbon fiber |
-
2014
- 2014-12-17 CN CN201410793048.2A patent/CN105887243A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841801A (en) * | 2017-11-11 | 2018-03-27 | 龙邦复合材料有限公司 | Carbon fibre carbonizing and prepreg assembly line and its production technology |
| CN108539212A (en) * | 2018-04-04 | 2018-09-14 | 苏州舒广袖新能源科技有限公司 | A kind of preparation method of electrode used for all-vanadium redox flow battery |
| CN110396732A (en) * | 2019-08-23 | 2019-11-01 | 大同新成新材料股份有限公司 | A kind of processing technology of modified carbon fiber |
| CN110499551A (en) * | 2019-08-23 | 2019-11-26 | 大同新成新材料股份有限公司 | It is a kind of to damage small carbon fiber terylene short fiber production technology |
| CN111647973A (en) * | 2020-07-07 | 2020-09-11 | 北京化工大学常州先进材料研究院 | Preparation method of large-tow carbon fiber |
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Application publication date: 20160824 |
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| WD01 | Invention patent application deemed withdrawn after publication |