CN110195272A - A kind of method that Mesophase Pitch Fiberss oil - Google Patents

A kind of method that Mesophase Pitch Fiberss oil Download PDF

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Publication number
CN110195272A
CN110195272A CN201910422056.9A CN201910422056A CN110195272A CN 110195272 A CN110195272 A CN 110195272A CN 201910422056 A CN201910422056 A CN 201910422056A CN 110195272 A CN110195272 A CN 110195272A
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China
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pitch
oil
mesophase pitch
fiberss
graphite
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CN201910422056.9A
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CN110195272B (en
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刘金水
黄东
叶崇
伍孝
余洋
刘玲
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Hunan Dongying Carbon Materials Technology Co ltd
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Hunan Dongying Carbon Mstar Technology Ltd
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/10Chemical after-treatment of artificial filaments or the like during manufacture of carbon
    • D01F11/12Chemical after-treatment of artificial filaments or the like during manufacture of carbon with inorganic substances ; Intercalation
    • D01F11/125Carbon
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/10Chemical after-treatment of artificial filaments or the like during manufacture of carbon
    • D01F11/14Chemical after-treatment of artificial filaments or the like during manufacture of carbon with organic compounds, e.g. macromolecular compounds
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/145Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Fibers (AREA)
  • Working-Up Tar And Pitch (AREA)

Abstract

The present invention relates to a kind of methods that Mesophase Pitch Fiberss oil, point twice oil, and first of contact length that oils is 5-20mm, oil as pitch fibers moistened surface modifying agent for first, aqueous solution is configured using triethanolamine oleate, the mass concentration of triethanolamine oleate is 0.5-2wt%;Second is the aqueous colloidal of the mesophase pitch-based carbon fibers superfine powder of mass concentration 1-5wt%, is prepared using mesophase pitch-based carbon fibers sheet as raw material, the contact length that second oils is 2-10cm.The present invention is after twice oil, the convergence of Mesophase Pitch Fiberss beam is good, can be fully oxidized in subsequent oxidation process, and residual quantity is more after the low-temperature carbonization of 400-600oC, prepared mesophase pitch-based carbon fibers low temperature silk can be collected continuously, and lousiness is less.

Description

A kind of method that Mesophase Pitch Fiberss oil
Technical field
The present invention relates to a kind of production method of Mesophase Pitch Fiberss suitable for mesophase pitch-based carbon fibers spinning, Oil formula and method especially in Mesophase Pitch Fiberss second level.
Background technique
Mesophase pitch-based carbon fibers have high thermal conductivity, high-modulus, low thermal coefficient of expansion and high-strength light etc. a series of Advantage is widely used on space flight and aviation, high-end manufacturing industry and strategic arms.The preparation of mesophase pitch-based carbon fibers is logical It often needs by processes such as mesophase pitch modulation, spinning, oxidation and charing black leads, mesophase pitch silk is usual before winding It needs to add finish and carries out boundling processing, but finish remaining quantity is less after low-temperature carbonization, causes to collect after low-temperature carbonization low Warm silk convergence is poor, seriously affects subsequent high temperature charing and graphited processing performance;Although can by modified silane finish To improve the residue of carbon fiber surface after low-temperature carbonization, but siliceous residue can not in the heat treatment of subsequent higher temperature Cause the damage of carbon fiber surface structure with avoiding, the final surface property for influencing mesophase pitch-based carbon fibers.
Summary of the invention
The object of the present invention is to provide the method that mesophase pitch-based carbon fibers point twice oil, first is pitch fibers Moistened surface is modified finish, and second is the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder, after twice oil, The convergence of Mesophase Pitch Fiberss beam is good, can be fully oxidized in subsequent oxidation process, by the low temperature of 400-600oC Residual quantity is more after charing, and prepared mesophase pitch-based carbon fibers low temperature silk can be collected continuously, and lousiness is less.
It carries out twice for the mesophase pitch-based carbon fibers of spinning to oil, first modified for pitch fibers moistened surface Finish, second are the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder.It oils for first as pitch fibers surface profit Wet modifying agent is that aqueous solution is configured using triethanolamine oleate, and the mass concentration of triethanolamine oleate is 0.5-2wt%, the The contact length that oils together is 5-20mm.Second is the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder, in utilization Between asphalt phase base carbon fibre sheet as raw material prepare, oil at first immediately carry out second oil, what second oiled Contact length is 2-10cm, is wound on winder after oiling.The water solubility of second mesophase pitch-based carbon fibers superfine powder Colloid preparation process is as follows:
Firstly, mesophase pitch-based carbon fibers Mechanical Crushing at progress 2600-3000oC graphite after the short silk that length is 2-5mm Change, obtains the short silk of intermediate phase pitch-based graphite, then continue to be broken for 3-10 μm of intermediate phase pitch-based graphite using airflow milling Fine powder.To mesophase pitch base graphite fine powder carry out oxidation processes, oxidizing atmosphere be vapor, air, oxygen and they Mixture, the temperature of oxidation is 500-800oC.Progress ultrasonic wave is broken after intermediate phase pitch-based graphite fine powder carries out oxidation processes It is broken, 0.1-5 μm of ultra-fine intermediate phase pitch-based graphite microparticles are then filtered out according to grain size grading, and deionized water is then added, Enuatrol configures solution, and ammonium hydroxide is added and adjusts solution pH value 9-11, the additive amount of enuatrol is 0.1-5wt%, graphite colloids Additive amount is 1-5wt%, and stirring rate is that 2000-5000 turns/min, and solution bath temperature is 30-70oC, obtains mesophase pitch The aqueous colloidal of base carbon fibre superfine powder.
The present invention is improved the surface wettability of Mesophase Pitch Fiberss first, is then utilized by twice oiling process Own material raw material configures the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder, carries out second and oils.The present invention adopts On the one hand the method that oils can optimize the collection after convergence, oxidation technology and the low-temperature carbonization of Mesophase Pitch Fiberss On the other hand Shu Xing avoids carbon fiber power caused by the residual of non-carbon element in subsequent high temperature carbonization and graphitizing process The damage for learning performance has positive effect to the industrialization preparation for pushing high-performance mesophase pitch-based carbon fibers.
Specific embodiment
Below with reference to specific example, the present invention will be further described.
Embodiment 1 carries out twice for the mesophase pitch-based carbon fibers of spinning and oils, and first is pitch fibers surface Modified finish is soaked, second is the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder.It oils for first as pitch fibre Dimension table face wettability improvers configure aqueous solution, mass concentration 0.5wt%, first of contact that oils using triethanolamine oleate Length is 5.Second is the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder, utilizes mesophase pitch-based carbon fibers sheet It is prepared as raw material.Firstly, carrying out 2600oC graphite after the short silk for being 2 at length mesophase pitch-based carbon fibers Mechanical Crushing Change, obtains the short silk of intermediate phase pitch-based graphite, then continue to be broken for 3 μm of partial size of intermediate phase pitch-based graphite using airflow milling Fine powder.To above-mentioned mesophase pitch base graphite fine powder carry out oxidation processes, oxidizing atmosphere be vapor, air, oxygen and Their mixture, the temperature of oxidation are 500oC.Progress ultrasonic wave is broken after intermediate phase pitch-based graphite fine powder carries out oxidation processes It is broken, 0.1 μm of ultra-fine intermediate phase pitch-based graphite microparticles are then filtered out according to grain size grading, and deionized water is then added, oil Sour sodium configures solution, and ammonium hydroxide is added and adjusts solution ph 9, the additive amount of enuatrol is 0.1wt%, and the additive amount of graphite colloids is 1wt%, stirring rate are 2000 turns/min, and solution bath temperature is 30oC, obtain the water of mesophase pitch-based carbon fibers superfine powder Dissolubility colloid.Oil at first immediately carry out second oil, the contact length that second oils be 2cm, after oiling It is wound on winder.
Embodiment 2 carries out twice for the mesophase pitch-based carbon fibers of spinning and oils, and first is pitch fibers surface Modified finish is soaked, second is the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder.It oils for first as pitch fibre Dimension table face wettability improvers configure aqueous solution, concentration 1.5% using triethanolamine oleate, and first of contact length that oils is 10mm.Second is the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder, utilizes mesophase pitch-based carbon fibers itself For raw material preparation.Firstly, mesophase pitch-based carbon fibers Mechanical Crushing at progress 2800oC graphite after the short silk that length is 3mm Change, obtains the short silk of intermediate phase pitch-based graphite, then continue to be broken for 6 μm of partial size of intermediate phase pitch-based graphite using airflow milling Fine powder.To above-mentioned mesophase pitch base graphite fine powder carry out oxidation processes, oxidizing atmosphere be vapor, air, oxygen and Their mixture, the temperature of oxidation are 600oC.Progress ultrasonic wave is broken after intermediate phase pitch-based graphite fine powder carries out oxidation processes It is broken, 2 μm of ultra-fine intermediate phase pitch-based graphite microparticles are then filtered out according to grain size grading, and deionized water, oleic acid is then added Sodium configures solution, and ammonium hydroxide is added and adjusts solution pH value 10, the additive amount of enuatrol is 2wt%, and the additive amount of graphite colloids is 3wt%, stirring rate are 3500 turns/min, and solution bath temperature is 50oC, obtain the water of mesophase pitch-based carbon fibers superfine powder Dissolubility colloid.Oil at first immediately carry out second oil, the contact length that second oils be 6cm, after oiling It is wound on winder.
Embodiment 3 carries out twice for the mesophase pitch-based carbon fibers of spinning and oils, and first is pitch fibers surface Modified finish is soaked, second is the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder.It oils for first as pitch fibre Dimension table face wettability improvers configure aqueous solution, concentration 2% using triethanolamine oleate, and first of contact length that oils is 20mm.Second is the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder, utilizes mesophase pitch-based carbon fibers itself For raw material preparation.Firstly, mesophase pitch-based carbon fibers Mechanical Crushing at progress 3000oC graphite after the short silk that length is 5mm Change, obtains the short silk of intermediate phase pitch-based graphite, then continue to be broken for 10 μm of partial size of mesophase pitch foundation stone using airflow milling Black fine powder.To above-mentioned mesophase pitch base graphite fine powder carry out oxidation processes, oxidizing atmosphere be vapor, air, oxygen with And their mixture, the temperature of oxidation are 800oC.Intermediate phase pitch-based graphite fine powder carries out ultrasonic wave after carrying out oxidation processes It is broken, 5 μm of ultra-fine intermediate phase pitch-based graphite microparticles are then filtered out according to grain size grading, and deionized water is then added, oil Sour sodium configures solution, and ammonium hydroxide is added and adjusts solution pH value 11, the additive amount of enuatrol is 5wt%, and the additive amount of graphite colloids is 5wt%, stirring rate are 5000 turns/min, and solution bath temperature is 70oC, obtain the water of mesophase pitch-based carbon fibers superfine powder Dissolubility colloid.Oil at first immediately carry out second oil, the contact length that second oils be 10cm, after oiling It is wound on winder.

Claims (9)

1. a kind of method that Mesophase Pitch Fiberss oil, it is characterised in that: a point twice oil, and first is pitch fibers surface Modified finish is soaked, first of contact length that oils is 5-20mm;Second is the water of mesophase pitch-based carbon fibers superfine powder Dissolubility colloid;First of oil is pitch fibers moistened surface modifying agent, is prepared using triethanolamine oleate configuration aqueous solution It forms, the mass concentration of triethanolamine oleate is 0.5-2wt%;Second is the intermediate phase pitch-based of mass concentration 1-5wt% The aqueous colloidal of carbon fiber superfine powder is prepared using mesophase pitch-based carbon fibers sheet as raw material, and preparation process is as follows:
Firstly, mesophase pitch-based carbon fibers Mechanical Crushing at progress 2600-3000oC graphite after the short silk that length is 2-5mm Change, obtains the short silk of intermediate phase pitch-based graphite, then continue to be broken for 3-10 μm of intermediate phase pitch-based graphite using airflow milling Fine powder carries out oxidation processes to mesophase pitch base graphite fine powder, and it is laggard that intermediate phase pitch-based graphite fine powder carries out oxidation processes Row ultrasonic disruption, then filters out 0.1-5 μm of ultra-fine intermediate phase pitch-based graphite microparticles according to grain size grading, addition go from Sub- water, enuatrol configure solution, and ammonium hydroxide is added and adjusts solution ph 9-11, and the mass percentage concentration of enuatrol is 0.1-5wt%, The mass percentage concentration of graphite colloids is 1-5wt%, and stirring rate is that 2000-5000 turns/min, and solution bath temperature is 30-70o C obtains the aqueous colloidal of mesophase pitch-based carbon fibers superfine powder, and second is carried out after oiling at first and is oiled, and second The contact length that road oils is 2-10cm, is wound on winder after oiling.
2. the method that a kind of Mesophase Pitch Fiberss according to claim 1 oil, it is characterised in that: oil for first for Pitch fibers moistened surface modifying agent configures aqueous solution, the mass concentration of triethanolamine oleate using triethanolamine oleate For 0.8-2wt%.
3. the method that a kind of Mesophase Pitch Fiberss according to claim 1 oil, it is characterised in that: oil for first for Pitch fibers moistened surface modifying agent configures aqueous solution, the mass concentration of triethanolamine oleate using triethanolamine oleate For 0.8-2wt%.
4. the method that a kind of Mesophase Pitch Fiberss according to claim 1 or 2 oil, it is characterised in that: on first Oil is pitch fibers moistened surface modifying agent, configures aqueous solution, the quality of triethanolamine oleate using triethanolamine oleate Concentration is 1.0-2wt%.
5. the method that a kind of Mesophase Pitch Fiberss according to claim 1 oil, it is characterised in that: the quality of enuatrol Percentage concentration is 0.2-5wt%.
6. the method that a kind of Mesophase Pitch Fiberss according to claim 1 oil, it is characterised in that: the matter of graphite colloids Amount percentage concentration is 1-5wt%.
7. the method that a kind of Mesophase Pitch Fiberss according to claim 1 oil, it is characterised in that: what second oiled Contact length is 3-10cm.
8. the method that a kind of Mesophase Pitch Fiberss according to claim 1 oil, it is characterised in that: described to interphase Pitch based graphite fine powder carries out oxidation processes, and oxidizing atmosphere is vapor, air, oxygen or their mixture, oxidation Temperature be 600-800oC.
9. the method that a kind of Mesophase Pitch Fiberss according to claim 1 oil, it is characterised in that: described utilizes gas Stream mill continues to be crushed, and is broken for 5-10 μm of intermediate phase pitch-based graphite fine powder.
CN201910422056.9A 2019-05-21 2019-05-21 Method for oiling mesophase pitch fibers Active CN110195272B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58191222A (en) * 1982-04-30 1983-11-08 Dainippon Ink & Chem Inc Manufacture of pitch based carbon fiber
CN102690125A (en) * 2012-06-26 2012-09-26 武汉科技大学 Highly-oriented highly-heat-conducting carbon/carbon composite material and preparation method thereof
CN104160085A (en) * 2012-03-02 2014-11-19 松本油脂制药株式会社 Treating agent for acrylic fibers for use in carbon fiber production, acrylic fibers for use in carbon fiber production, and process for producing carbon fibers
CN104452270A (en) * 2014-12-19 2015-03-25 四川创越炭材料有限公司 Spinning finish for asphalt carbon fiber
CN104562299A (en) * 2014-12-29 2015-04-29 四川创越炭材料有限公司 Preparation method for high-dispersity carbon fiber
CN109280997A (en) * 2018-09-20 2019-01-29 北京化工大学 The high-strength high-modules carbon fibre and preparation method thereof of low degree of graphitization

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58191222A (en) * 1982-04-30 1983-11-08 Dainippon Ink & Chem Inc Manufacture of pitch based carbon fiber
CN104160085A (en) * 2012-03-02 2014-11-19 松本油脂制药株式会社 Treating agent for acrylic fibers for use in carbon fiber production, acrylic fibers for use in carbon fiber production, and process for producing carbon fibers
CN102690125A (en) * 2012-06-26 2012-09-26 武汉科技大学 Highly-oriented highly-heat-conducting carbon/carbon composite material and preparation method thereof
CN104452270A (en) * 2014-12-19 2015-03-25 四川创越炭材料有限公司 Spinning finish for asphalt carbon fiber
CN104562299A (en) * 2014-12-29 2015-04-29 四川创越炭材料有限公司 Preparation method for high-dispersity carbon fiber
CN109280997A (en) * 2018-09-20 2019-01-29 北京化工大学 The high-strength high-modules carbon fibre and preparation method thereof of low degree of graphitization

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Address after: Room 2202, building F1, Lugu Yuyuan, No.27 Wenxuan Road, high tech Development Zone, Changsha City, Hunan Province

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Address before: Room 2202, building F1, Lugu Yuyuan, No.27 Wenxuan Road, high tech Development Zone, Changsha City, Hunan Province

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