CN103276477B - Preparation technology of intermediate phase pitch-based carbon fiber - Google Patents
Preparation technology of intermediate phase pitch-based carbon fiber Download PDFInfo
- Publication number
- CN103276477B CN103276477B CN201310229497.XA CN201310229497A CN103276477B CN 103276477 B CN103276477 B CN 103276477B CN 201310229497 A CN201310229497 A CN 201310229497A CN 103276477 B CN103276477 B CN 103276477B
- Authority
- CN
- China
- Prior art keywords
- mesophase pitch
- based carbon
- carbon fibers
- preparation technology
- magnetic field
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 39
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 39
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 8
- 238000009987 spinning Methods 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000003763 carbonization Methods 0.000 claims abstract description 9
- 239000011302 mesophase pitch Substances 0.000 claims description 82
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 239000011295 pitch Substances 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000005087 graphitization Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 238000007599 discharging Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000009656 pre-carbonization Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
Abstract
The invention discloses a preparation technology of an intermediate phase pitch-based carbon fiber, and belongs to the field of carbon fibers. The preparation technology comprises the steps as follows: a, intermediate phase pitch is taken as a raw material, smashed and sieved by a standard sieve, so that intermediate phase pitch powder is screened out; b, the intermediate phase pitch powder is guided into a magnetic field spinning device and heated to a molten state, and passes through a magnetic field so that molecular orientations of the intermediate phase pitch powder are arranged in order, spinning is performed, and an intermediate phase pitch filament is obtained; and c, the intermediate phase pitch filament is subjected to carbonization treatment, and the intermediate phase pitch-based carbon fiber is obtained. According to the preparation technology of the intermediate phase pitch-based carbon fiber, the production process is simplified, and the energy consumption and the production cost are low, thereby facilitating batch production.
Description
Technical field
The present invention relates to carbon fiber field, particularly relate to mesophase pitch-based carbon fibers preparation technology.
Background technology
Carbon fiber is a kind of fibrous carbon material.Strength ratio steel is large, tensile strength is about 10 times of steel, density ratio aluminium is little, than stainless steel also corrosion-resistant, than heat resisting steel also high temperature resistant, can conduct electricity as copper again, there is the new material of the electricity of many preciousnesses, calorifics and mechanical property.Blue or green base carbon fibre is divided into two large classes: a class is general purpose grade, manufactures fiber by isotropic pitch; Another kind of is high-performance level, manufactures fiber by anisotropy intermediate pitch.According to requirements be divided into resistance to combustion Xian Wei ﹑ carbon fiber and graphite fibre with different ﹐ carbon fiber of heat treatment temperature.Mesophase pitch-based carbon fibers, be a kind of with coal or asphalt for raw material, through refining, spinning, pre-oxidation, carbonization and graphitization special fibre, because it has high strength, anti-oxidant, corrosion-resistant, antifatigue, creep resistant, the premium properties such as conductive and heat-conductive, military, civil area is indispensable material, be widely used in aviation, space flight, physical culture, photovoltaic, semiconductor, traffic, medical treatment, the fields such as industrial furnace, as aeroplane brake discs, rocket nozzle, larynx serves as a contrast, rudder, single, polysilicon charcoal/carbon/carbon heating body, support crucible, heat screen, charcoal/charcoal energy storage material, charcoal/charcoal medicine equipment, carbon/carbon mould for hot-pressed sintering furnace, fishing rod etc.But traditional mesophase pitch-based carbon fibers complex process, needs pre-oxidation could further production mesophase pitch-based carbon fibers, or pre-oxidation more pre-carbonization could produce intermediate phase pitch-based graphite fibre further, energy consumption and production cost high.
Summary of the invention
For the problem that traditional mesophase pitch-based carbon fibers complex process, energy consumption and production cost are high, the invention provides a kind of mesophase pitch-based carbon fibers preparation technology.
The technical solution used in the present invention is: mesophase pitch-based carbon fibers preparation technology, and its processing step comprises:
A, be raw material with mesophase pitch, mesophase pitch pulverized and filters out mesophase pitch powder by standard screen again;
B, mesophase pitch powder to be imported in the spinning equipment of magnetic field, first mesophase pitch powder is heated to molten condition, then makes mesophase pitch molecularly oriented ordered arrangement through magnetic field, then carry out spinning, draw mesophase pitch silk;
C, mesophase pitch silk is carried out carbonization treatment, draw mesophase pitch-based carbon fibers.
In technique scheme, the raw material mesophase pitch in step a is mesophase petroleum system pitch or the mesophase spherule carbobitumen of more than 80%.
In technique scheme, the magnetic field spinning equipment in step b comprises blanking heater and device for spinning, is also provided with magnetic field device between blanking heater and device for spinning, and magnetic field device produces magnetic field and makes mesophase pitch molecularly oriented ordered arrangement.
In technique scheme, in step b, use nitrogen protection when mesophase pitch powder is heated to molten condition, prevent mesophase pitch to be oxidized.
In technique scheme, in step b, the magnetic field intensity accommodated is 0.3-1.5T, is 3000-15000 Gauss, ensures mesophase pitch Molecular alignment.
In technique scheme, in step c, by carbonization in the atmosphere protection stove of mesophase pitch silk under temperature is 800-1200 degree celsius temperature condition, what draw is mesophase pitch-based carbon fibers.
In technique scheme, in step c, by graphitization in the graphitizing furnace of mesophase pitch silk under temperature is 2200-3200 degree celsius temperature condition, what draw is intermediate phase pitch-based graphite fibre.
The invention has the beneficial effects as follows: the mesophase pitch-based carbon fibers preparation technology of above-mentioned structure, according to the orientation characteristic of mesophase pitch in magnetic field, mesophase pitch accommodates magnetic field in spinning process makes mesophase pitch molecularly oriented ordered arrangement, cause mesophase pitch silk can become mesophase pitch-based carbon fibers by direct carbonization, decrease pre-oxidation operation, or mesophase pitch silk does not need pre-oxidation to become intermediate phase pitch-based graphite fibre with pre-carbonization technique direct graphitization, simplify production procedure, energy consumption and production cost low, be convenient to batch production.
Accompanying drawing explanation
Fig. 1 is magnetic field of the present invention spinning equipment structural representation;
In figure, 1, blanking heater; 11, colloidal solution container; 12, temp controlling heater; 2, device for spinning; 21, main shaft; 22, wire tray is got rid of; 23, motor; 24, drive belt; 3, magnetic field device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
embodiment one:
The magnetic field spinning equipment that this mesophase pitch-based carbon fibers preparation technology uses comprises blanking heater 1, device for spinning 2 and magnetic field device 3.Blanking heater 1 comprises colloidal solution container 11 and temp controlling heater 12; Colloidal solution container 11 is barrel-shaped, and colloidal solution container 11 is provided with feeding port and discharging opening, needs the raw material of spinning for material loading; Temp controlling heater 12 depends on colloidal solution container 11, heats the raw material in colloidal solution container 11.Device for spinning 2 comprises main shaft 21, gets rid of wire tray 22 and motor 23; Main shaft 21 hollow and center are the feeding channel at through main shaft 21 two ends, main shaft 21 one end is communicated with colloidal solution container 11 discharging opening, main shaft 21 other end with get rid of wire tray 22 and be communicated with, motor 23 is driven main shaft 21 by drive belt 24 and is got rid of wire tray 22 and rotates simultaneously; The wire vent hole of getting rid of wire tray 22 is 0.3mm.Magnetic field device 3 device, between colloidal solution container 11 discharging opening and main shaft 21, carries out blessing magnetic field and makes mesophase pitch molecularly oriented ordered arrangement after raw materials melt and before spinning.
Mesophase pitch-based carbon fibers preparation technology, its processing step comprises:
A, with softening point at 270 degrees Celsius, mesophase spherule content more than 80% and the best be 90% middle petroleum asphalt phase or mesophase spherule carbobitumen be raw material, by mesophase pitch pulverize filter out mesophase pitch powder by 100 object standard screens again.
B, imported by mesophase pitch powder in the colloidal solution container 11 of above-mentioned magnetic field spinning equipment, temp controlling heater 12 heated constant temperature is to 340 degrees Celsius and using nitrogen as protective gas in heating process, mesophase pitch powder is heated to molten condition; Open motor 23 to carry out getting rid of silk with 5000 revs/min of rotating speeds; Before the mesophase pitch solution of colloidal solution container 11 flows into main shaft 21, accommodate magnetic field through magnetic field device 3 and make mesophase pitch molecularly oriented ordered arrangement, the magnetic field intensity that magnetic field device 3 produces is 0.3-1.5T (3000-15000 Gauss), and now optimum is 1.0T (10000 Gauss); Mesophase pitch solution flows into and gets rid of wire tray 22 spinning, show that diameter is the mesophase pitch silk of 10um.
C, by carbonization in the atmosphere protection stove of mesophase pitch silk under temperature is 800-1200 degree Celsius and optimum is 1000 degree celsius temperature conditions 5 hours, what draw was mesophase pitch-based carbon fibers.
embodiment two:
The magnetic field spinning equipment that this mesophase pitch-based carbon fibers preparation technology uses comprises blanking heater 1, device for spinning 2 and magnetic field device 3.Blanking heater 1 comprises colloidal solution container 11 and temp controlling heater 12; Colloidal solution container 11 is barrel-shaped, and colloidal solution container 11 is provided with feeding port and discharging opening, needs the raw material of spinning for material loading; Temp controlling heater 12 depends on colloidal solution container 11, heats the raw material in colloidal solution container 11.Device for spinning 2 comprises main shaft 21, gets rid of wire tray 22 and motor 23; Main shaft 21 hollow and center are the feeding channel at through main shaft 21 two ends, main shaft 21 one end is communicated with colloidal solution container 11 discharging opening, main shaft 21 other end with get rid of wire tray 22 and be communicated with, motor 23 is driven main shaft 21 by drive belt 24 and is got rid of wire tray 22 and rotates simultaneously; The wire vent hole of getting rid of wire tray 22 is 0.3mm.Magnetic field device 3 device, between colloidal solution container 11 discharging opening and main shaft 21, carries out blessing magnetic field and makes mesophase pitch molecularly oriented ordered arrangement after raw materials melt and before spinning.
Mesophase pitch-based carbon fibers preparation technology, its processing step comprises:
A, with softening point at 270 degrees Celsius, mesophase spherule content more than 80% and the best be 90% middle petroleum asphalt phase or mesophase spherule carbobitumen be raw material, by mesophase pitch pulverize filter out mesophase pitch powder by 100 object standard screens again.
B, imported by mesophase pitch powder in the colloidal solution container 11 of above-mentioned magnetic field spinning equipment, temp controlling heater 12 heated constant temperature is to 340 degrees Celsius and using nitrogen as protective gas in heating process, mesophase pitch powder is heated to molten condition; Open motor 23 to carry out getting rid of silk with 5000 revs/min of rotating speeds; Before the mesophase pitch solution of colloidal solution container 11 flows into main shaft 21, accommodate magnetic field through magnetic field device 3 and make mesophase pitch molecularly oriented ordered arrangement, the magnetic field intensity that magnetic field device 3 produces is 0.3-1.5T (3000-15000 Gauss), and now optimum is 1.0T (10000 Gauss); Mesophase pitch solution flows into and gets rid of wire tray 22 spinning, show that diameter is the mesophase pitch silk of 10um.
C, by carbonization in the atmosphere protection stove of mesophase pitch silk under temperature is 2200-3200 degree Celsius and optimum is 2800 degree celsius temperature conditions 1 hour, what draw was intermediate phase pitch-based graphite fibre.
Finished product test TENSILE STRENGTH, stretch modulus and resistivity that above-described embodiment one and embodiment two are produced, from the result of test, although the mesophase pitch-based carbon fibers that the present invention produces and intermediate phase pitch-based graphite fibre product simplify technique, but the mesophase pitch-based carbon fibers that performance and traditional handicraft are produced is suitable with intermediate phase pitch-based graphite fibre performance, above-mentioned experimental test result is as following table:
| Tensile strength (Mpa) | Stretch modulus (Gpa) | Resistivity (Ω cm) | |
| The mesophase pitch-based carbon fibers that embodiment one is produced | 520 | 31 | 13x10 -1 |
| The intermediate phase pitch-based graphite fibre that embodiment two is produced | 1500 | 450 | 0.5x10 -3 |
| The mesophase pitch-based carbon fibers that traditional handicraft is produced | 500 | 30 | 15x10 -1 |
| The mesophase pitch-based carbon fibers that traditional handicraft is produced | 1550 | 470 | 0.5x10 -3 |
Above embodiment is merely illustrative and not limiting to the invention, therefore all equivalences done according to the method described in patent claim of the present invention change or modify, and are included in patent claim of the present invention.
Claims (6)
1. mesophase pitch-based carbon fibers preparation technology, its processing step comprises:
A, be raw material with mesophase pitch, mesophase pitch pulverized and filters out mesophase pitch powder by standard screen again;
B, mesophase pitch powder is imported in the spinning equipment of magnetic field, first mesophase pitch powder is heated to molten condition, then makes mesophase pitch molecularly oriented ordered arrangement through magnetic field, then carry out spinning, draw mesophase pitch silk, the magnetic field intensity accommodated is 1.0-1.5T;
C, mesophase pitch silk is carried out carbonization treatment, draw mesophase pitch-based carbon fibers.
2. mesophase pitch-based carbon fibers preparation technology according to claim 1, is characterized in that: the described raw material mesophase pitch in step a is mesophase petroleum system pitch or the mesophase spherule carbobitumen of more than 80%.
3. mesophase pitch-based carbon fibers preparation technology according to claim 1, is characterized in that: the described magnetic field spinning equipment in step b comprises blanking heater and device for spinning, is also provided with magnetic field device between blanking heater and device for spinning.
4. mesophase pitch-based carbon fibers preparation technology according to claim 1, is characterized in that: in step b, uses nitrogen protection when mesophase pitch powder is heated to molten condition.
5. mesophase pitch-based carbon fibers preparation technology according to claim 1; it is characterized in that: in step c; by carbonization in the atmosphere protection stove of mesophase pitch silk under temperature is 800-1200 degree celsius temperature condition, what draw is mesophase pitch-based carbon fibers.
6. mesophase pitch-based carbon fibers preparation technology according to claim 1, it is characterized in that: in step c, by graphitization in the graphitizing furnace of mesophase pitch silk under temperature is 2200-3200 degree celsius temperature condition, what draw is intermediate phase pitch-based graphite fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229497.XA CN103276477B (en) | 2013-06-09 | 2013-06-09 | Preparation technology of intermediate phase pitch-based carbon fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229497.XA CN103276477B (en) | 2013-06-09 | 2013-06-09 | Preparation technology of intermediate phase pitch-based carbon fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103276477A CN103276477A (en) | 2013-09-04 |
| CN103276477B true CN103276477B (en) | 2015-06-03 |
Family
ID=49059086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310229497.XA Active CN103276477B (en) | 2013-06-09 | 2013-06-09 | Preparation technology of intermediate phase pitch-based carbon fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103276477B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980710A (en) * | 2014-06-02 | 2014-08-13 | 北京化工大学 | Heat-conducting type carbon fiber composite material and preparation method thereof |
| CN104047066B (en) * | 2014-07-01 | 2016-08-17 | 陕西天策新材料科技有限公司 | A kind of mesophase pitch melt spinning method |
| CN105088420B (en) * | 2015-09-14 | 2017-11-28 | 陕西天策新材料科技有限公司 | The preparation method of high heat conduction pitch graphite fibre |
| CN105489857B (en) * | 2015-12-08 | 2018-06-29 | 西安瑟福能源科技有限公司 | A kind of quick charge lithium ion battery |
| CN107523901A (en) * | 2016-06-22 | 2017-12-29 | 张家港保税区冠祥贸易有限公司 | A kind of preparation method of ribbon-like fibre |
| CN106521713A (en) * | 2016-11-10 | 2017-03-22 | 过冬 | Preparation method of graphene/mesophase pitch based composite carbon fiber |
| CN106498564A (en) * | 2016-12-19 | 2017-03-15 | 绍兴丰源节能科技有限公司 | A kind of processing method of asphalt-based carbon fiber |
| CN107447298A (en) * | 2017-09-15 | 2017-12-08 | 江苏科力特环保科技有限公司 | A kind of method that pitch-based activated carbon fiber is prepared using mesophase pitch as raw material |
| CN107916466A (en) * | 2017-11-28 | 2018-04-17 | 株洲科威铁路配件有限公司 | Carbon fibre material and preparation method and application, the method for preparation pantograph sliding block |
| CN108048958A (en) * | 2017-12-26 | 2018-05-18 | 宜兴市天宇世纪高新科技有限公司 | A kind of preparation method of coal tar pitch carbon fiber |
| CN110273198B (en) * | 2019-05-21 | 2021-07-20 | 湖南东映碳材料科技有限公司 | Method for quickly pre-oxidizing mesophase pitch fibers |
| CN110230124B (en) * | 2019-05-21 | 2021-08-31 | 湖南东映碳材料科技有限公司 | Method for oiling mesophase pitch fibers |
| CN110284218B (en) * | 2019-05-21 | 2021-08-31 | 湖南东映碳材料科技有限公司 | Method for oiling mesophase pitch fibers |
| CN115029816A (en) * | 2022-06-17 | 2022-09-09 | 武汉科技大学 | Ultrahigh-thermal-conductivity mesophase pitch-based carbon fiber, composite material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030799A (en) * | 1987-07-21 | 1989-02-01 | 迪迪尔工程有限公司 | The production method of anisotropy carbon fiber and device |
| CN102317516A (en) * | 2008-12-19 | 2012-01-11 | 帝人株式会社 | Carbon fibers and method for producing the same |
| CN103073836A (en) * | 2013-02-05 | 2013-05-01 | 武汉科技大学 | High thermal conductivity carbon fiber resin-based composite material and preparation method thereof |
-
2013
- 2013-06-09 CN CN201310229497.XA patent/CN103276477B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030799A (en) * | 1987-07-21 | 1989-02-01 | 迪迪尔工程有限公司 | The production method of anisotropy carbon fiber and device |
| CN102317516A (en) * | 2008-12-19 | 2012-01-11 | 帝人株式会社 | Carbon fibers and method for producing the same |
| CN103073836A (en) * | 2013-02-05 | 2013-05-01 | 武汉科技大学 | High thermal conductivity carbon fiber resin-based composite material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 单向C/C复合材料基体中间相在磁场中的取向;周少荣等;《无机材料学报》;19970831;第12卷(第4期);第556-560页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103276477A (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103276477B (en) | Preparation technology of intermediate phase pitch-based carbon fiber | |
| CN109320278B (en) | Heat-conducting ceramic matrix composite and preparation method thereof | |
| CN105887245A (en) | Preparation method of continuous high-performance intermediate-phase asphalt-based carbon fiber | |
| CN102838106B (en) | Method for preparing carbon film by using silicon carbide-enhanced polyimide composite film | |
| CN110424068B (en) | SiC fiber prepared by doping ultrahigh-temperature ceramic composite material and method and application thereof | |
| CN109081695B (en) | Preparation method of high-density large-size ultrafine-aperture nuclear graphite material for molten salt reactor | |
| CN102199811A (en) | Micron/submicron/nanometer magnetic silicon carbide fiber and preparation method thereof | |
| CN101949073B (en) | Preparation method of superfine zirconium oxide/silicon carbide fiber with radial and gradient distribution | |
| CN105923620A (en) | Preparation method for isotropic mesocarbon microbeads | |
| CN106958053B (en) | A kind of preparation method of porous petroleum coke base carbon fibre | |
| CN107630267A (en) | A kind of coal liquefaction residue system can spin pitch and preparation method thereof and carbon fiber | |
| CN101876094B (en) | Preparation method of superfine zirconia/silicon carbide composite fibers | |
| CN103469367A (en) | Preparation technology of high-strength and high modulus carbon fibers | |
| CN103160955B (en) | Preparation method of continuous SiC fiber having surface carbon-rich structure | |
| CN108048958A (en) | A kind of preparation method of coal tar pitch carbon fiber | |
| CN110230125A (en) | A kind of preparation method of ultra-fine high thermal conductivity graphite fibre powder | |
| CN110983491A (en) | Method for manufacturing high-thermal-conductivity mesophase pitch-based carbon fibers at low temperature | |
| CN105544021A (en) | Method for inhibiting unevenness of structures of carbon fibers | |
| 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 | |
| CN204530089U (en) | The hot case drafting system of superhigh molecular weight polyethylene fibers | |
| CN101565630B (en) | Method for preparing orderly mesophase needle coke | |
| CN208398654U (en) | A kind of stirring driving of graphite heat preservation sand | |
| JP3648865B2 (en) | Carbon fiber manufacturing method | |
| CN109811429A (en) | Silicon carbide fibre and the preparation method and application thereof containing nano aluminum nitride and metallic nickel | |
| CN110528120B (en) | Zirconium carbide nano-fiber and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 523000 Guangdong city in Dongguan Province town of Liaobu Miao Bian Cun Yong Fu Lu Applicant after: DONGGUAN ADVANCED ELECTRONIC TECH Co.,Ltd. Address before: 523000 Guangdong city in Dongguan Province town of Liaobu Miao Bian Cun Yong Fu Lu Applicant before: DONGGUAN BIBIKE ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DONGGUAN BBK ELECTRONIC TECHNOLOGY CO., LTD. TO: DONGGUAN ZHUOGAO ELECTRONICS TECHNOLOGY CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 523000 Guangdong city of Dongguan province Zhenkang Hengli road Dongxing Industrial Park Patentee after: DONGGUAN ADVANCED ELECTRONIC TECH Co.,Ltd. Address before: 523000 Guangdong city in Dongguan Province town of Liaobu Miao Bian Cun Yong Fu Lu Patentee before: DONGGUAN ADVANCED ELECTRONIC TECH Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231016 Address after: 526000, 2nd Floor, No.2 Qiandong Road, Liantang Town, Gaoyao District, Zhaoqing City, Guangdong Province Patentee after: Guangdong Zhuo High-tech Materials Technology Co.,Ltd. Address before: 523000 Dongxing Industrial Park, Kangle Road, Hengli Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN ADVANCED ELECTRONIC TECH Co.,Ltd. |