CN108203848B - High-strength high-heat-conductivity high-modulus asphalt-based carbon fiber and preparation method thereof - Google Patents
High-strength high-heat-conductivity high-modulus asphalt-based carbon fiber and preparation method thereof Download PDFInfo
- Publication number
- CN108203848B CN108203848B CN201810136663.4A CN201810136663A CN108203848B CN 108203848 B CN108203848 B CN 108203848B CN 201810136663 A CN201810136663 A CN 201810136663A CN 108203848 B CN108203848 B CN 108203848B
- Authority
- CN
- China
- Prior art keywords
- treatment
- temperature
- conductivity
- heat
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/145—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
Abstract
The invention discloses high-strength high-heat-conductivity high-modulus asphalt-based carbon fibers and a preparation method thereof, and belongs to the technical field of carbon fiber preparation. The technical scheme comprises the following steps: 1) the intermediate phase pitch is used as a raw material, and the pitch-based precursor with the fiber diameter of 10-30 mu m is prepared by melt spinning; 2) after winding and collecting the filaments of the asphalt-based precursor prepared in the step 1), sequentially carrying out active filament unwinding, hot roller drying treatment, infusible treatment, three-stage carbonization treatment, pre-graphitization treatment, sizing drying and final winding and collection to prepare the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber. According to the method, the graphitization final temperature is reduced by introducing hot roller drying, upgrading and optimizing the infusibility process, reclassifying the carbonization process and introducing pre-graphitization, the graphitization temperature required by the method is lower when the asphalt-based graphite fiber with the same heat conductivity is prepared, the service life of a graphite heating body is greatly prolonged, and the industrialization of the high heat conductivity asphalt-based graphite fiber is realized.
Description
Technical Field
The invention belongs to the technical field of carbon fiber preparation, and particularly relates to high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber and a preparation method thereof.
Background
The pitch-based carbon fiber is a special fiber with carbon content more than 92% which is prepared by using petroleum pitch, coal pitch and naphthalene as raw materials through refining, spinning, pre-oxidation, carbonization or graphitization of pitch. The carbon fiber resin composite material is a new material with excellent mechanical properties, the tensile strength of the carbon fiber resin composite material is generally more than 3500Mpa, which is 7-9 times of that of steel, and the tensile elastic modulus is 230-430 Gpa, which is also higher than that of steel. The high-strength high-modulus high-temperature-resistant high-strength high-temperature-resistant high-strength high-temperature-resistant high-corrosion-resistant high-fatigue-resistant high-creep-resistant high-temperature-resistant high-conductivity high-heat-conductivity high-strength high-modulus high-strength.
However, in the actual production process, in order to prepare the graphite fiber with higher modulus and heat conductivity, the heat conductivity of the fiber needs to be improved by increasing the graphitization temperature, but as the graphitization temperature is increased, the service life of the graphite heating element is shortened rapidly, and the realization of the industrialization of the graphite fiber with high heat conductivity is limited.
Disclosure of Invention
The invention aims to provide high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber and a preparation method thereof.
The invention is realized by the following technical scheme:
the invention discloses a preparation method of high-strength high-heat-conductivity high-modulus asphalt-based carbon fibers, which comprises the following steps:
1) the intermediate phase pitch is used as a raw material, and the pitch-based precursor with the fiber diameter of 10-30 mu m is prepared by melt spinning;
2) after winding and collecting the filaments of the asphalt-based precursor prepared in the step 1), sequentially carrying out active filament unwinding, hot roller drying treatment, infusible treatment, three-stage carbonization treatment, pre-graphitization treatment, sizing drying and final winding and collection to prepare the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber.
Preferably, the whole-line running speed of the equipment running production line is 0.15-1 m/min in the process from the active filament paying-off operation to the final winding and filament receiving.
Preferably, the hot-roll drying (the number of drying rolls is 2-4) treatment is carried out at 150-220 ℃ for 500-900 s.
Preferably, the non-melting treatment is carried out at a temperature of 240 ℃ to 350 ℃, a draft of 0.1% to 2%, and a compressed air flow rate of 0.1m3/h～10m3The treatment time is 700 s-2000 s.
Preferably, the third-stage carbonization treatment specifically means that the fiber subjected to the non-melting treatment is subjected to low-temperature carbonization treatment, medium-temperature carbonization treatment and high-temperature carbonization treatment in sequence; wherein, 5 temperature zones are arranged in the low-temperature carbonization treatment and the medium-temperature carbonization treatment; 4 temperature zones are set in the high-temperature carbonization treatment process.
More preferably, the low-temperature carbonization treatment is carried out for 200 to 500 seconds under the conditions of 400 to 700 ℃ and the drafting of-1 to-2 percent in the nitrogen atmosphere; the medium-temperature carbonization treatment is carried out for 200-500 s under the conditions of 800-1200 ℃ and-1% -2% of drafting in nitrogen atmosphere; the high-temperature carbonization treatment is carried out for 200-400 s under the condition of drawing 0.5-1.5% at 1200-1800 ℃ in nitrogen atmosphere.
More preferably, the pre-graphitization treatment is performed for 100 to 200 seconds under an argon atmosphere at 2100 to 2300 ℃ under a draft of 0.5 to 1%.
More preferably, the graphitization treatment temperature is 100 to 200 seconds under an argon atmosphere at 2600 to 2800 ℃ under a draft of 1 to 1.5%.
Preferably, the sizing drying adopts epoxy resin-based sizing agent for sizing treatment, and the fiber sizing rate is controlled to be 1.0-3.0%; the drying is carried out at a temperature of 150 ℃ to 200 ℃.
The invention also discloses the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber prepared by the preparation method, and the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber has the tensile strength of more than 3300MPa, the modulus of more than 800GPa, the heat conductivity of more than 500W/m.multidot.K and the bulk density of 2.17g/cm3The above.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a preparation method of high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber, which comprises the steps of taking mesophase asphalt as a raw material, preparing asphalt-based precursor fibers with the fiber diameter of 10-30 mu m by a melt spinning method, winding and collecting the asphalt-based precursor fibers, and then sequentially carrying out active filament discharge, hot roller drying treatment, non-melting treatment, three-stage carbonization treatment, pre-graphitization treatment, sizing drying and winding and collecting the filaments to prepare the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber. Firstly, the introduction of hot roller drying treatment enables the fibers to be fully dried in the process that the fibers pass through the hot rollers, and then the fibers are more beneficial to the penetration of oxygen in the process of non-melting treatment, so that the oxidation is more sufficient, and the distribution of the oxygen in the radial direction is more uniform. And secondly, due to the introduction of the three-stage carbonization treatment, the carbonization treatment time of the fiber is longer, the orientation degree of the fiber is maintained, the structure of the fiber is damaged due to violent reaction, the improvement of the mechanical property of the fiber is facilitated, the fiber is more compact, and the increase of the density of a fiber body is facilitated. And thirdly, due to the introduction of pre-graphitization, greater drafting can be applied to the fibers, the densification degree of the fibers is favorably improved, so that the fiber mechanics, the heat conduction and the bulk density are improved, and the fiber graphitization degree is higher and the densification is higher through high-temperature graphitization treatment, so that the improvement of the fiber strength and the modulus heat conduction is favorably realized. The method is simple to operate, the whole line runs smoothly, and the controllability is strong.
Further, the third-stage carbonization treatment specifically means that the fiber subjected to the non-melting treatment is subjected to low-temperature carbonization treatment, medium-temperature carbonization treatment and high-temperature carbonization treatment in sequence; wherein, 5 temperature zones are arranged in the low-temperature carbonization treatment and the medium-temperature carbonization treatment; 4 temperature zones are set in the high-temperature carbonization treatment process. The temperature zone division mode is more reasonable, the temperature difference between adjacent temperature zones is smaller, and the temperature rising slope of the carbonization section is smaller.
Furthermore, the introduction of pre-graphitization can ensure that the fiber can complete condensation denitrification reaction at 2100-2300 ℃, the porosity Vp reaches the highest value, and the R value of the Raman spectrum line has an inflection point at about 2200 ℃, which indicates that the ordered stacking degree of the graphite layer is gradually improved.
When the invention is used for preparing the fiber with the same heat conduction washing rate, the graphitization temperature is reduced by 100-150 ℃, taking the graphite fiber with the heat conductivity of 500W/m.times.K in the prior art as an example, the domestic graphitization temperature is 2700 ℃ plus or minus 50 ℃, but the graphitization temperature is 2500 ℃ plus or minus 50 ℃ when the invention is produced according to the preparation method. Meanwhile, the service life of the graphite heating body is prolonged by more than 2 times.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention discloses a preparation method of high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber, which comprises the following basic process flows:
spinning a precursor, winding and collecting filaments, actively discharging the filaments, drying by a hot roller, performing infusibility treatment, performing low-temperature carbonization treatment, performing medium-temperature carbonization treatment, performing high-temperature carbonization treatment, performing pre-graphitization treatment, graphitizing treatment, sizing treatment, drying, and winding and collecting the filaments.
Taking 1K asphalt-based precursor as an example, the specific process steps are as follows:
step 1: the mesophase pitch is used as a raw material, and 1K pitch-based precursor fibers are prepared through melt spinning, wherein the fiber diameter is 10-30 mu m. The preparation method of the protofilament can refer to the content disclosed in application No. 201410307876.0 and publication No. CN 104047066A.
Step 2: after winding and collecting the filaments of the asphalt-based precursor prepared in the step 1), sequentially carrying out active filament unwinding, hot roller drying treatment, infusible treatment, three-stage carbonization treatment, pre-graphitization treatment, sizing drying and final winding and collection to prepare the 1K high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber, wherein the whole line running speed is 0.15-1 m/min.
2.1, carrying out hot roller drying treatment (the number of drying rollers is 2-4), wherein the drying temperature is 150-220 ℃, and the time is controlled to be 500-900 s.
2.2, non-melting treatment, the treatment temperature is 240-350 ℃, the drafting is 0.1-2 percent, and the compressed air flow is 0.1m3/h～10m3The residence time of the fiber in the furnace is controlled between 700s and 2000 s.
2.3, low-temperature carbonization treatment, 5 temperature zones, the treatment temperature of 400-700 ℃, the drafting of-1% -2%, the protection of nitrogen, and the retention time of the fiber in the furnace controlled within 200-500 s.
2.4, medium-temperature carbonization treatment, 5 temperature zones, the treatment temperature of 800-1200 ℃, the drafting of minus 1% -minus 2%, the protection of nitrogen, and the retention time of the fiber in the furnace controlled within 200-500 s.
2.5, high-temperature carbonization treatment, 4 temperature zones, the treatment temperature of 1200-1800 ℃, the drafting of 0.5-1.5 percent, nitrogen protection and the retention time of the fiber in the furnace controlled within 200-400 s.
2.6, pre-graphitization treatment, wherein the treatment temperature is 2100-2300 ℃, the drafting is 0.5-1 percent, the fiber stays in the furnace for 100-200 s under the protection of argon.
2.7, graphitizing, wherein the treatment temperature is 2600-2800 ℃, the drafting is 1% -1.5%, the residence time of the fiber in the furnace is 100-200 s under the protection of argon.
2.8, using epoxy resin-based sizing agent to carry out sizing treatment (the concentration of sizing liquid is 1.0-3.0 percent), controlling the fiber sizing rate to be 1.0-3.0 percent, and then drying, wherein the drying temperature is controlled to be 150-200 ℃.
And 2.9, winding and collecting the yarns.
Example 1
A preparation method of high-strength high-heat-conductivity high-modulus asphalt-based carbon fibers comprises the following steps:
1) the mesophase pitch is taken as a raw material, 1K pitch-based precursor is prepared through melt spinning, and the fiber diameter (average value) is 15 mu m;
2) performing hot roller drying treatment, wherein the treatment temperature of the four drying rollers is 150 ℃, 170 ℃, 190 ℃ and 210 ℃ in sequence, and the retention time of the fiber on the hot roller is controlled to be 650 s;
3) drawing with three-roller, introducing into oxidation furnace, performing non-melting treatment at initial temperature of 240 deg.C and final temperature of 300 deg.C (to achieve 1% drawing), and flowing compressed air with flow rate of 6m3The residence time of the fiber in the furnace is controlled to be 1000 s;
4) drawing the fiber by a three-roller to enter a low-temperature carbonization furnace, performing low-temperature carbonization treatment, wherein the treatment temperature is 450 ℃ at the beginning, and 700 ℃ (first zone 450 ℃, second zone 525 ℃, third zone, 600 ℃ fourth zone 650 ℃, fifth zone and 700 ℃) (drawing-1.5%), performing nitrogen protection, and controlling the retention time of the fiber in the furnace to be 400 s; entering a final temperature carbonization furnace through a three-roller, carrying out medium temperature carbonization treatment, wherein the treatment temperature is 800 ℃ at the beginning, 1000 ℃ at the final temperature (800 ℃ in the first zone, 850 ℃ in the second zone, 900 ℃ in the third zone, 950 ℃ in the fourth zone, 1000 ℃ in the fifth zone) at the final temperature (drafting-1%), carrying out nitrogen protection, and controlling the retention time of fibers in the furnace to be 400 s; entering a high-temperature carbonization furnace through a five-roller, carrying out high-temperature carbonization treatment, wherein the treatment temperature is 1200 ℃, the final temperature is 1800 ℃ (the first zone is 1200 ℃, the second zone is 1400 ℃, the third zone is 1600 ℃, the fourth zone is 1800 ℃) (the drafting is 0.5%), carrying out nitrogen protection, and controlling the retention time of fibers in the furnace to be 200 s;
5) passing through a five-roller for pre-graphitization treatment, wherein the treatment temperature is 2200 ℃ (the drafting is 0.75%), argon is used for protection, and the retention time of the fiber in the furnace is controlled to be 150 s;
6) graphitizing by a five-roller, wherein the treatment temperature is 2600 ℃ (the drafting is 1.5%), and the residence time of the argon protection fiber in the furnace is controlled to be 100 s;
7) using epoxy resin-based sizing agent to carry out sizing treatment, controlling the fiber sizing rate to be 1.0-3.0%, and then drying, wherein the drying temperature is controlled to be 150-200 ℃; and (6) winding and collecting the yarn.
The properties of the pitch-based carbon fibers produced in this example are shown in Table 1:
table 1 results of performance test of pitch-based carbon fibers obtained in example 1
| Fiber numbering | Specification of | Strength MPa | Modulus GPa | Heat conduction W/m K | Bulk density g/cm3 |
| 1# | 1K | 3435 | 834 | 521 | 2.18 |
Meanwhile, in order to verify the performance of the pitch-based carbon fiber prepared by the method, the pitch-based carbon fiber treated by the process of the invention is compared with the pitch-based carbon fiber prepared by the conventional treatment process, the treatment process parameter conditions are shown in table 2, and the performance comparison results are shown in table 3:
table 2 comparison of treatment processes
TABLE 3 comparison of fiber Properties
| Fiber numbering | Specification of | Strength MPa | Modulus GPa | Heat conduction W/m K | Bulk density g/cm3 |
| 2# | 1K | 3310 | 804 | 502 | 2.18 |
| 1# | 1K | 3435 | 833 | 521 | 2.18 |
Example 2
A preparation method of high-strength high-heat-conductivity high-modulus asphalt-based carbon fibers comprises the following steps:
1) the mesophase pitch is used as a raw material, and 2K pitch-based precursor fibers are prepared through melt spinning, wherein the fiber diameter (average value) is 20 mu m.
2) Carrying out hot roller drying treatment at 150 ℃, 180 ℃ and 210 ℃, wherein the retention time of the fiber in a drying roller is controlled at 600 s;
3) passing through three-roller for non-melting treatment, wherein the treatment temperature is 240 deg.C, the final temperature is 350 deg.C (drafting 1%), and the compressed air flow is 6m3The residence time of the fiber in the furnace is controlled to be 1200 s;
4) low-temperature carbonization treatment is carried out through a three-roller, the treatment temperature is 450 ℃ at the beginning, 700 ℃ (the first zone is 450 ℃, the second zone is 525 ℃, the third zone is 650 ℃, the fifth zone is 700 ℃) at the 600 ℃, the draft is-1.5 percent, nitrogen protection is carried out, and the retention time of the fiber in the furnace is controlled to be 480 s. Carrying out medium-temperature carbonization treatment by three-roller rollers, wherein the treatment temperature is 800 ℃ at the beginning, 1000 ℃ at the final temperature (800 ℃ in the first zone, 850 ℃ in the second zone, 900 ℃ in the third zone, 950 ℃ in the fourth zone, 1000 ℃ in the fifth zone and 1000 ℃) (draft-1%), and under the protection of nitrogen, the retention time of the fiber in the furnace is controlled to be 480 s. High-temperature carbonization treatment is carried out by passing through five rollers, the starting temperature of the treatment temperature is 1200 ℃, the final temperature is 1800 ℃ (the first zone is 1200 ℃, the second zone is 1400 ℃, the third zone is 1600 ℃, the fourth zone is 1800 ℃) (the drafting is 0.5%), nitrogen protection is carried out, and the retention time of the fiber in the furnace is controlled to be 240 s.
5) Passing through a five-roller for pre-graphitization treatment, wherein the treatment temperature is 2200 ℃ (the drafting is 0.75%), argon is used for protection, and the retention time of the fiber in the furnace is controlled to be 180 s.
6) Graphitizing by a five-roller, wherein the treatment temperature is 2600 ℃ (the drafting is 1.5%), and the residence time of the argon protection fiber in the furnace is controlled to be 120 s.
7) Sizing by a five-roller, sizing by using an epoxy resin-based sizing agent (the concentration of sizing liquid is 1.5 percent), controlling the fiber sizing rate to be 1.0 to 3.0 percent, and drying at the temperature of between 150 and 200 ℃; and (6) winding and collecting the yarn. The properties of the pitch-based carbon fibers prepared therefrom are shown in table 4 below:
TABLE 4 Pitch-based carbon fiber Performance test results
| Fiber numbering | Specification of | Strength MPa | Modulus GPa | Heat conduction W/m K | Bulk density g/cm3 |
| 3# | 2K | 3442 | 831 | 514 | 2.18 |
In conclusion, the invention reduces the graphitization final temperature by replanning the heat treatment process, introducing hot roller drying, upgrading and optimizing the infusibility process, reclassifying the carbonization process and introducing pre-graphitization, and when preparing the asphalt-based graphite fiber with the same heat conductivity, the graphitization temperature required by the method is lower, thereby greatly prolonging the service life of the graphite heating element and realizing the industrialization of the asphalt-based graphite fiber with high heat conductivity.
Claims (4)
1. The preparation method of the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber is characterized by comprising the following steps of:
1) the intermediate phase pitch is used as a raw material, and the pitch-based precursor with the fiber diameter of 10-30 mu m is prepared by melt spinning;
2) after winding and collecting the filaments of the asphalt-based precursor prepared in the step 1), sequentially carrying out active filament unwinding, hot roller drying treatment, infusible treatment, three-stage carbonization treatment, pre-graphitization treatment, sizing drying and final winding and collection to prepare the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber;
the non-melting treatment is carried out at the temperature of 240-350 ℃, the drafting is 0.1-2 percent, and the compressed air flow is 0.1m3/h～10m3The treatment time is 700 s-2000 s;
the three-stage carbonization treatment specifically comprises the steps of sequentially carrying out low-temperature carbonization treatment, medium-temperature carbonization treatment and high-temperature carbonization treatment on fibers subjected to non-melting treatment; wherein, 5 temperature zones are arranged in the low-temperature carbonization treatment and the medium-temperature carbonization treatment; 4 temperature zones are arranged in the high-temperature carbonization treatment process;
the low-temperature carbonization treatment is carried out for 200-500 s under the conditions of 400-700 ℃ and-1% -2% of drafting in nitrogen atmosphere; the medium-temperature carbonization treatment is carried out for 200-500 s under the conditions of 800-1200 ℃ and-1% -2% of drafting in nitrogen atmosphere; the high-temperature carbonization treatment is carried out for 200-400 s under the condition of drawing 0.5-1.5% at 1200-1800 ℃ in nitrogen atmosphere;
the pre-graphitization treatment is carried out for 100-200 s under the condition of 2100-2300 ℃ and 0.5-1% of drafting in argon atmosphere;
in the process from the active wire releasing operation to the final winding and wire collecting, the whole line running speed of the equipment running production line is 0.15-1 m/min;
the hot roller drying treatment is carried out for 500-900 s at the temperature of 150-220 ℃.
2. The preparation method of the high-strength high-thermal-conductivity high-modulus asphalt-based carbon fiber according to claim 1, wherein the graphitization treatment temperature is 100-200 s under the condition of drafting at 2600-2800 ℃ for 1-1.5% in an argon atmosphere.
3. The preparation method of the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber according to claim 1, wherein the sizing drying adopts an epoxy resin-based sizing agent for sizing, and the fiber sizing rate is controlled to be 1.0-3.0%; the drying is carried out at a temperature of 150 ℃ to 200 ℃.
4. The high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber prepared by the preparation method of any one of claims 1 to 3, wherein the high-strength high-heat-conductivity high-modulus asphalt-based carbon fiber has the tensile strength of 3300 to 3442MPa, the modulus of 800 to 834GPa, the heat conductivity of 500 to 521W/m K and the bulk density of 2.18g/cm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810136663.4A CN108203848B (en) | 2018-02-09 | 2018-02-09 | High-strength high-heat-conductivity high-modulus asphalt-based carbon fiber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810136663.4A CN108203848B (en) | 2018-02-09 | 2018-02-09 | High-strength high-heat-conductivity high-modulus asphalt-based carbon fiber and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108203848A CN108203848A (en) | 2018-06-26 |
| CN108203848B true CN108203848B (en) | 2020-11-20 |
Family
ID=62606426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810136663.4A Active CN108203848B (en) | 2018-02-09 | 2018-02-09 | High-strength high-heat-conductivity high-modulus asphalt-based carbon fiber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108203848B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560081B (en) * | 2018-05-30 | 2023-07-18 | 中国科学院宁波材料技术与工程研究所 | Preparation system and method of high-strength high-modulus carbon fiber |
| CN109856331B (en) * | 2019-01-30 | 2021-11-19 | 陕西天策新材料科技有限公司 | Characterization method of oxidation degree of asphalt-based pre-oxidized fibers |
| CN110578187B (en) * | 2019-09-23 | 2021-10-08 | 陕西天策新材料科技有限公司 | Graphite fiber with laminated cross-section structure and melt spinning method thereof |
| CN110904674A (en) * | 2019-12-10 | 2020-03-24 | 陕西天策新材料科技有限公司 | High-surface-activity asphalt-based graphite fiber, preparation method thereof and resin-based composite material prepared based on high-surface-activity asphalt-based graphite fiber |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597848A (en) * | 2009-06-30 | 2009-12-09 | 肖颖 | The equipment of continuously fabricating carbon fiber felt production line and technology |
| CN104047070A (en) * | 2014-06-27 | 2014-09-17 | 陕西天策新材料科技有限公司 | Preparation method of high-modulus graphite fibers |
| CN104213253A (en) * | 2014-09-15 | 2014-12-17 | 北京化工大学常州先进材料研究院 | Preparation method of novel mesophase pitch-based composite carbon fibers |
| CN105088420A (en) * | 2015-09-14 | 2015-11-25 | 陕西天策新材料科技有限公司 | Preparation method for high-heat-conduction asphalt graphite fibers |
| CN105177768A (en) * | 2015-09-23 | 2015-12-23 | 荣成复合材料有限公司 | Polyacrylonitrile-based carbon fiber production device and method |
| CN105256409A (en) * | 2015-11-17 | 2016-01-20 | 安徽弘昌新材料有限公司 | Mesophase-pitch-based carbon fiber and preparation method thereof |
| CN105696235A (en) * | 2016-03-30 | 2016-06-22 | 上海力硕复合材料科技有限公司 | Continuous manufacturing process method of high-conductive-activity PAN-based graphitized carbon fiber surface felt |
| CN106544758A (en) * | 2016-10-21 | 2017-03-29 | 中国石油大学(华东) | A kind of preparation method of high modulus pitch-based carbon fiber |
| CN107381563A (en) * | 2016-05-17 | 2017-11-24 | 深圳格林德能源有限公司 | A kind of graphite cathode material and the fast charge lithium ion battery using the graphite |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012106B (en) * | 2016-06-27 | 2018-04-20 | 武汉中交岩土工程有限责任公司 | A kind of preparation method of mesophase pitch-based carbon fibers |
-
2018
- 2018-02-09 CN CN201810136663.4A patent/CN108203848B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597848A (en) * | 2009-06-30 | 2009-12-09 | 肖颖 | The equipment of continuously fabricating carbon fiber felt production line and technology |
| CN104047070A (en) * | 2014-06-27 | 2014-09-17 | 陕西天策新材料科技有限公司 | Preparation method of high-modulus graphite fibers |
| CN104213253A (en) * | 2014-09-15 | 2014-12-17 | 北京化工大学常州先进材料研究院 | Preparation method of novel mesophase pitch-based composite carbon fibers |
| CN105088420A (en) * | 2015-09-14 | 2015-11-25 | 陕西天策新材料科技有限公司 | Preparation method for high-heat-conduction asphalt graphite fibers |
| CN105177768A (en) * | 2015-09-23 | 2015-12-23 | 荣成复合材料有限公司 | Polyacrylonitrile-based carbon fiber production device and method |
| CN105256409A (en) * | 2015-11-17 | 2016-01-20 | 安徽弘昌新材料有限公司 | Mesophase-pitch-based carbon fiber and preparation method thereof |
| CN105696235A (en) * | 2016-03-30 | 2016-06-22 | 上海力硕复合材料科技有限公司 | Continuous manufacturing process method of high-conductive-activity PAN-based graphitized carbon fiber surface felt |
| CN107381563A (en) * | 2016-05-17 | 2017-11-24 | 深圳格林德能源有限公司 | A kind of graphite cathode material and the fast charge lithium ion battery using the graphite |
| CN106544758A (en) * | 2016-10-21 | 2017-03-29 | 中国石油大学(华东) | A kind of preparation method of high modulus pitch-based carbon fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108203848A (en) | 2018-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108203848B (en) | High-strength high-heat-conductivity high-modulus asphalt-based carbon fiber and preparation method thereof | |
| Yusof et al. | Post spinning and pyrolysis processes of polyacrylonitrile (PAN)-based carbon fiber and activated carbon fiber: A review | |
| CN103046165B (en) | Preparation method of continuous filament of asphalt-based carbon fiber | |
| CN110067044B (en) | Polyacrylonitrile-based graphite fiber and preparation method thereof | |
| CN103184590B (en) | Preparation method of carbon fiber with strength of 4,800-5,000MPa | |
| CN107287699B (en) | Rapid preoxidation process for polyacrylonitrile-based carbon fiber precursor | |
| CN110055624B (en) | Pre-oxidation method of polyacrylonitrile fiber, polyacrylonitrile carbon fiber and preparation method | |
| CN108486689B (en) | Preparation method of high-modulus high-thermal-conductivity asphalt-based carbon fiber continuous filament | |
| CN111139554B (en) | High-permeability polyacrylonitrile-based carbon fiber and preparation method thereof | |
| CN109402795B (en) | Pre-oxidation method and equipment for improving mechanical property of carbon fiber | |
| CN108239801B (en) | Large-tow asphalt-based carbon fiber and preparation method thereof | |
| CN211522400U (en) | Microwave heating carbon fiber precursor annealing-pre-oxidation treatment equipment | |
| CN111118671B (en) | Preparation method of 25k large-tow carbon fiber | |
| CN108286088B (en) | Asphalt-based carbon fiber for weaving and preparation method thereof | |
| CN109505063A (en) | A kind of preparation method of flexibility low softening point asphalt base nano carbon fibre non-woven fabrics | |
| CN108251919B (en) | Intermittent and continuous asphalt-based graphite fiber filament preparation method | |
| CN101560701B (en) | Method for preparing high-strength carbon fibers | |
| CN111945251A (en) | Ultrahigh-strength medium-modulus polyacrylonitrile-based carbon fiber and preparation method thereof | |
| CN110904674A (en) | High-surface-activity asphalt-based graphite fiber, preparation method thereof and resin-based composite material prepared based on high-surface-activity asphalt-based graphite fiber | |
| CN111088558B (en) | Preparation method of polyacrylonitrile-based carbon fiber | |
| CN110983491A (en) | Method for manufacturing high-thermal-conductivity mesophase pitch-based carbon fibers at low temperature | |
| CN111020750A (en) | High-speed preparation method for producing large-tow carbon fibers | |
| CN109402794B (en) | Apparatus and heat treatment method for weakening skin-core structure in carbon fiber | |
| CN112176458B (en) | Preparation method of asphalt-based carbon fiber | |
| KR100770656B1 (en) | Oxidative stabilization method of nanofibers and fabric for manufacturing carbon fibers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200813 Address after: 710000 Haichuang Plaza C, Shenzhou 4th Road, Weiqu Street, Chang'an District, Xi'an City, Shaanxi Province Applicant after: SHAANXI TIANCE NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 710100 Room 103, Building 2, Hangchuang International Plaza, 239 Shenzhou Fourth Road, Xi'an Space Base, Shaanxi Province Applicant before: XI'AN TIANYUN NEW MATERIAL TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |