WO2016159122A1 - Procédé de production de matériau composite et matériau composite - Google Patents

Procédé de production de matériau composite et matériau composite Download PDF

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Publication number
WO2016159122A1
WO2016159122A1 PCT/JP2016/060464 JP2016060464W WO2016159122A1 WO 2016159122 A1 WO2016159122 A1 WO 2016159122A1 JP 2016060464 W JP2016060464 W JP 2016060464W WO 2016159122 A1 WO2016159122 A1 WO 2016159122A1
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Prior art keywords
carbon fiber
carbon
composite material
cnts
fiber bundle
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PCT/JP2016/060464
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English (en)
Japanese (ja)
Inventor
拓治 小向
広美 輝平
麻季 鬼塚
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ニッタ株式会社
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Priority to US15/561,944 priority Critical patent/US20180119332A1/en
Priority to CN201680013245.5A priority patent/CN107429477B/zh
Priority to EP16773003.5A priority patent/EP3279394B1/fr
Priority to KR1020177025067A priority patent/KR20170131391A/ko
Publication of WO2016159122A1 publication Critical patent/WO2016159122A1/fr

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    • 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
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
    • D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
    • 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

Definitions

  • the present invention relates to a method for producing a composite material in which carbon nanotubes (hereinafter referred to as CNT) are adhered to the surface of a plurality of continuous carbon fibers constituting a carbon fiber bundle, and the composite material.
  • CNT carbon nanotubes
  • a carbon fiber bundle in which continuous carbon fibers are bundled in units of several thousand to several tens of thousands has excellent characteristics such as low density, high specific strength, and high specific modulus.
  • a prepreg obtained by impregnating a resin into such a carbon fiber bundle is expected to be applied to applications (such as aviation and space-related applications) where the performance requirements are more stringent.
  • Patent Document 1 a carbon fiber is immersed in a dispersion containing CNTs, and energy such as vibration, light irradiation, and heat is applied to form a CNT network on the surface of the carbon fiber.
  • Patent Document 1 describes that if a composite material is impregnated with a base material, a fiber-reinforced molded product in which the base material and the carbon fiber are firmly bonded can be obtained while taking advantage of the characteristics of the base material.
  • a more excellent reinforcing fiber having characteristics derived from CNTs can be obtained.
  • composite material In order to produce a high-strength prepreg, such a composite material is required.
  • an object of the present invention is to provide a method for producing a composite material from which a high-strength prepreg exhibiting sufficiently CNT-derived characteristics can be obtained, and such a composite material.
  • a carbon fiber bundle containing a plurality of continuous carbon fibers is immersed in a carbon nanotube isolated dispersion liquid containing a plurality of isolated and dispersed carbon nanotubes. Applying a ultrasonic vibration of a frequency to form a structure including a plurality of carbon nanotubes on each surface of the plurality of carbon fibers, wherein the structure includes a surface of each of the plurality of carbon fibers.
  • the carbon nanotubes are directly attached to each other and have a network structure in which the carbon nanotubes are directly connected to each other.
  • the composite material according to the present invention is manufactured by the method described above.
  • a carbon fiber bundle containing a plurality of continuous carbon fibers is immersed in a CNT isolation dispersion, and an ultrasonic vibration having a frequency of more than 40 kHz and less than 180 kHz is applied.
  • CNTs are attached to the surface of each carbon fiber in the fiber bundle. Since the frequency exceeds 40 kHz, the risk of disturbance in the linearity of the carbon fibers in the carbon fiber bundle is reduced. In the resulting composite material, there is substantially no entanglement between the carbon fibers.
  • Each carbon fiber in the carbon fiber bundle can contribute to the strength, and the original strength of the carbon fiber bundle is exhibited. And since the frequency is prescribed
  • the carbon fiber bundle is immersed in a CNT isolation dispersion in which CNTs are isolated and dispersed.
  • the CNTs are dispersed in the dispersion medium in a state where the CNTs are physically separated and not entangled one by one.
  • the use of such a CNT isolation dispersion is also one of the reasons that CNT can adhere well to the surface of each carbon fiber.
  • the composite material of the present invention is manufactured by the method of the present invention, the entanglement between the carbon fibers is substantially absent, and the CNTs adhere well to the surface of each carbon fiber. For this reason, the composite material of the present invention can be impregnated with a resin to obtain a prepreg having high strength.
  • FIG. 3A shows a part of the surface of the carbon fiber in the carbon fiber bundle
  • FIG. 3B is an enlarged photograph of the surface of the carbon fiber
  • FIG. 4A is a SEM photograph of the composite material of Example 2
  • FIG. 4A shows a part of the surface of the carbon fiber in the carbon fiber bundle
  • FIG. 4B is an enlarged photograph of the carbon fiber surface.
  • FIG. 5A shows a part of the surface of the carbon fiber in the carbon fiber bundle
  • FIG. 5B is an enlarged photograph of the carbon fiber surface
  • FIG. 6A shows a part of the surface of the carbon fiber in the carbon fiber bundle
  • FIG. 6B is an enlarged photograph of the carbon fiber surface
  • FIG. 7A shows a part of the surface of the carbon fiber in the carbon fiber bundle
  • FIG. 7B is an enlarged photograph of the surface of the carbon fiber.
  • the present inventors In producing a composite material by forming a structure containing CNTs on the surface of carbon fiber, the present inventors have immersed the carbon fiber in a CNT dispersion and applied ultrasonic waves to thereby obtain the surface of the carbon fiber.
  • a method has been established in which CNTs are adhered to the substrate. Using this technique, it has become possible to form a network structure in which a plurality of CNTs are directly connected to each other and to form a structure directly attached to the carbon fiber surface. Therefore, when this method was applied to a carbon fiber bundle containing a plurality of continuous carbon fibers to attach CNTs to the surface of the carbon fibers, the entanglement between the carbon fibers was confirmed.
  • the entanglement of the carbon fibers in the carbon fiber bundle is caused by disturbance of the linearity of the carbon fibers due to cavitation generated in the dispersion liquid by application of ultrasonic waves.
  • the present inventors pay attention to this point and make it possible to attach CNTs to the surface of each carbon fiber while avoiding entanglement between carbon fibers in the carbon fiber bundle.
  • a composite material 10 of this embodiment includes a carbon fiber bundle 12 including a plurality of continuous carbon fibers 12a.
  • the carbon fiber bundle 12 in this embodiment is composed of 10,000 to 30,000 carbon fibers 12a.
  • the carbon fibers 12a constituting the carbon fiber bundle 12 are arranged in one direction while maintaining linearity without being substantially entangled with each other.
  • the entanglement of the carbon fibers 12a in the carbon fiber bundle 12 can be evaluated by the degree of disturbance of the carbon fibers 12a.
  • the carbon fiber bundle 12 is observed at a constant magnification with a scanning electron microscope (SEM), and the length of a predetermined number (for example, 10) of carbon fibers 12a is measured.
  • the degree of disturbance of the carbon fibers 12a can be evaluated on the basis of the length variation, the difference between the maximum value and the minimum value, and the standard deviation of the predetermined number of carbon fibers 12a.
  • the fact that the carbon fibers 12a are not substantially entangled can be determined, for example, by measuring the degree of entanglement according to the method for measuring the degree of entanglement according to JIS L1013: 2010 “Testing method for chemical fiber filament yarn”.
  • the smaller the measured degree of entanglement the smaller the entanglement between the carbon fibers 12a in the carbon fiber bundle 12. Therefore, when manufacturing the prepreg, the carbon fibers 12a can be easily spread uniformly, and each of the carbon fibers 12a can contribute to the strength. Structures 14 are formed on the respective surfaces of the carbon fibers 12a.
  • the carbon fiber 12a is a fiber having a diameter of about 5 to 20 ⁇ m obtained by baking organic fibers derived from petroleum such as polyacrylonitrile, rayon and pitch, coal and coal tar, and organic fibers derived from wood and plant fibers. .
  • the structure 14 on the surface of each carbon fiber 12a includes a plurality of CNTs 14a.
  • the CNTs 14a are evenly dispersed and intertwined over almost the entire surface of the carbon fiber 12a, so that they are in direct contact with each other or directly connected to form a network structure. It is preferable that there is no inclusion such as a dispersant such as a surfactant or an adhesive between the CNTs 14a.
  • the CNT 14a is directly attached to the surface of the carbon fiber 12a.
  • the connection here includes physical connection (simple contact). Moreover, adhesion here means the coupling
  • the length of the CNTs 14a forming the structure 14 is preferably 0.1 to 50 ⁇ m.
  • the CNTs 14a are entangled and directly connected. Further, when the length of the CNT 14a is 50 ⁇ m or less, it becomes easy to uniformly disperse. On the other hand, if the length of the CNTs 14a is less than 0.1 ⁇ m, the CNTs 14a are not easily entangled with each other. Further, when the length of the CNT 14a is more than 50 ⁇ m, the CNT 14a tends to aggregate.
  • the CNT 14a preferably has an average diameter of about 30 nm or less.
  • the diameter of the CNT 14a is 30 nm or less, the CNT 14a is rich in flexibility and can form a network structure on the surface of each carbon fiber 12a.
  • the diameter of the CNT 14a exceeds 30 nm, the flexibility is lost, and it becomes difficult to form a network structure on the surface of each carbon fiber 12a.
  • the diameter of CNT14a be the average diameter measured using the transmission electron microscope (TEM: Transmission
  • the plurality of CNTs 14a are uniformly attached to the respective surfaces of the carbon fibers 12a in the carbon fiber bundle 12.
  • the adhesion state of the CNTs 14a on the surface of the carbon fiber 12a can be observed by SEM, and the obtained image can be visually evaluated.
  • carbon fibers 32a having CNT aggregates 34b attached to the surface together with CNTs 34a may exist in the carbon fiber bundle. is there.
  • the carbon fiber bundle 42 may include carbon fibers 42a in which the amount of the attached CNTs 44a is insufficient and a structure is not formed on the surface.
  • carbon fibers having CNT aggregates attached to the surface are not substantially contained in the carbon fiber bundle.
  • Carbon fibers in which the amount of attached CNTs is insufficient and a structure is not formed on the surface are substantially not present in the carbon fiber bundle.
  • the CNTs 14a are directly attached to the surfaces of the carbon fibers 12a in the carbon fiber bundle 12. That is, the CNT 14a is directly attached to the surface of the carbon fiber 12a without any dispersing agent such as a surfactant or an adhesive interposed between the surface of the carbon fiber 12a.
  • the composite material 10 is obtained by immersing a carbon fiber bundle 12 including a plurality of continuous carbon fibers 12a in a CNT isolation dispersion liquid (hereinafter also simply referred to as a dispersion liquid) in which the CNTs 14a are isolated and dispersed. It can be manufactured by applying a sonic vibration to form the structures 14 on the respective surfaces of the carbon fibers 12a.
  • a CNT isolation dispersion liquid hereinafter also simply referred to as a dispersion liquid
  • CNT14a manufactured as follows can be used for preparation of a dispersion liquid.
  • the CNT 14a is formed by forming a catalyst film made of aluminum or iron on a silicon substrate by using a thermal CVD method as described in, for example, Japanese Patent Application Laid-Open No. 2007-12611, and fine particles of catalyst metal for CNT growth. And can be produced by bringing a hydrocarbon gas into contact with the catalytic metal in a heated atmosphere.
  • CNT obtained by other manufacturing methods such as an arc discharge method and a laser evaporation method, it is preferable to use a material containing as little impurities as possible.
  • the CNT produced in this production example is a long CNT linearly oriented with a high aspect ratio of a diameter of 30 nm or less and a length of several hundred ⁇ m to several mm.
  • the CNT may be a single layer or a multilayer, but is preferably a multilayer CNT.
  • Isolated dispersion refers to a state in which CNTs 14a are physically separated one by one and are not entangled and dispersed in a dispersion medium, and the ratio of an aggregate in which two or more CNTs 14a are gathered in a bundle is 10 % Means a state of less than or equal to%.
  • the CNTs 14a produced as described above are added to a dispersion medium, and the dispersion of the CNTs 14a is made uniform by a homogenizer, shear, an ultrasonic disperser, or the like.
  • the dispersion medium include alcohols such as water, ethanol, methanol, and isopropyl alcohol, and organic solvents such as toluene, acetone, tetrahydrofuran (THF), methyl ethyl ketone (MEK), hexane, normal hexane, ethyl ether, xylene, methyl acetate, and ethyl acetate.
  • a solvent can be used.
  • additives such as a dispersant and a surfactant are not necessarily required, but such additives may be used as long as the functions of the carbon fibers 12a and the CNTs 14a are not limited.
  • the frequency of the ultrasonic waves is preferably 100 kHz or more, and more preferably 130 kHz or more.
  • the carbon fiber bundle 12 including a plurality of continuous carbon fibers 12a is immersed in the dispersion in the reversible reaction state. Then, a reversible reaction state between the dispersion state and the aggregation state of the CNTs 14a occurs also on the surface of each carbon fiber 12a, and the CNTs 14a adhere to the surface of each carbon fiber 12a when shifting from the dispersion state to the aggregation state.
  • van der Waals force acts on the CNT 14a, and the CNT 14a adheres to the surface of the carbon fiber 12a by this van der Waals force. Thereafter, when the carbon fiber bundle 12 is drawn out from the dispersion and dried, the composite material 10 in which a network structure is formed on the surface of each carbon fiber 12a in the carbon fiber bundle 12 can be obtained. Drying can be achieved, for example, by placing it on a hot plate.
  • the composite material 10 of the present embodiment can be made into a prepreg by opening the carbon fibers 12a in the carbon fiber bundle 12 and impregnating the resin.
  • the resin to be impregnated is not particularly limited, and examples thereof include a thermosetting resin such as an epoxy resin, and a thermoplastic resin such as a phenoxy resin and nylon.
  • the composite material 10 of the present embodiment has substantially no entanglement between the carbon fibers 12a in the carbon fiber bundle 12, and therefore, when the prepreg is manufactured, the plurality of carbon fibers 12a are uniformly formed. Easy to expand. Moreover, the CNTs 14a are well attached to the surfaces of the carbon fibers 12a in the carbon fiber bundle 12 to form the structures 14. In such a prepreg in which the composite material 10 is impregnated with resin, there is very little risk of strength reduction due to the entanglement between the carbon fibers 12a. Since the CNTs 14a are satisfactorily adhered to the surface of each carbon fiber 12a and the structure 14 is formed, the obtained prepreg can sufficiently exhibit CNT-derived characteristics.
  • a carbon fiber bundle containing a plurality of continuous carbon fibers is immersed in a CNT isolation dispersion, and ultrasonic vibration having a frequency of 40 kHz to 180 kHz is applied.
  • the lower the frequency of ultrasonic vibration applied to the dispersion the higher the frequency of cavitation generated in the dispersion, and the higher the frequency, the lower the frequency of cavitation.
  • the dispersibility of the CNTs 14a in the dispersion can be enhanced by the effect of the generated cavitation.
  • the carbon fiber bundle 12 including a plurality of continuous carbon fibers 12a is immersed in a dispersion liquid in which cavitation is active, the CNTs 14a in the dispersion liquid adhere well to the surface of each carbon fiber 12a. Cavitation is advantageous in that it promotes good adhesion of the CNTs 14a to the carbon fiber 12a surface.
  • the cavitation disturbs the linearity of the carbon fibers 12a in the carbon fiber bundle 12 due to the large mechanical vibration. When the linearity of the carbon fibers 12a is disturbed, the carbon fibers 12a are entangled with each other.
  • shock waves caused by cavitation are generated in the dispersion liquid, and the entanglement of the carbon fibers 12a due to large mechanical vibration is caused when the frequency of ultrasonic vibration is 40 kHz or less, and the surface of each carbon fiber 12a.
  • the adhesion state of the CNTs 14a becomes defective when the frequency exceeds 180 kHz. If the frequency is 180 kHz or less, the CNTs 14a can be satisfactorily adhered to the surface of the carbon fiber 12a only by the effect of ultrasonic vibration even if cavitation does not occur.
  • the frequency of ultrasonic vibration applied to the dispersion in which the carbon fiber bundle 12 is immersed is regulated to be greater than 40 kHz and less than or equal to 180 kHz, thereby suppressing the disorder of the linearity of the carbon fiber 12a. It became possible to adhere CNT14a satisfactorily to the surface of each carbon fiber 12a, reducing the entanglement between 12a.
  • the carbon fiber bundle 12 is immersed in the present embodiment is a CNT isolation dispersion in which the CNTs 14a are isolated and dispersed.
  • the CNTs 14a are dispersed in the dispersion medium in a state where the CNTs 14a are physically separated and not entangled one by one.
  • the use of such a dispersion also leads to good adhesion of CNTs to the surface of each carbon fiber 12a in the carbon fiber bundle 12.
  • the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the gist of the present invention.
  • the carbon fiber bundle 12 As the carbon fiber bundle 12, a so-called regular toe composed of 10,000 to 30,000 carbon fibers 12a can be used.
  • the diameter of the carbon fiber 12a can be appropriately set within a range of 5 to 10 ⁇ m.
  • the dispersion medium may be evaporated from the carbon fiber bundle 12 using an evaporator, in addition to being placed on a hot plate.
  • the composite material of Example 1 was manufactured according to the procedure shown in the above manufacturing method.
  • the CNT 14a MW-CNT (Multi-walled Carbon Nanotubes, multi-walled carbon nanotubes) grown on a silicon substrate to a diameter of 10 to 15 nm and a length of 100 ⁇ m or more by a thermal CVD method was used.
  • a 3: 1 mixed acid of sulfuric acid and nitric acid was used, and after filtration, it was filtered and dried.
  • the CNTs 14a were crushed with an ultrasonic homogenizer in a dispersion medium until the length became 0.5 to 10 ⁇ m.
  • a dispersion was prepared using methyl ethyl ketone as a CNT dispersion medium.
  • the concentration of CNT 14a in the dispersion was 0.01 wt%. This dispersion does not contain a dispersant or an adhesive.
  • the carbon fiber bundle 12 used here includes 12,000 carbon fibers 12a.
  • the carbon fiber 12a has a diameter of about 7 ⁇ m and a length of about 100 m.
  • the carbon fiber bundle 12 was held in the dispersion for 10 seconds.
  • the carbon fiber bundle 12 was taken out from the dispersion and dried on a hot plate at about 80 ° C., and the structure 14 was formed on the surface of each carbon fiber 12 a constituting the carbon fiber bundle 12.
  • the composite material 10 of Example 1 was obtained.
  • Example 2 a composite material of Example 2 was produced in the same manner as Example 1 except that the frequency of the ultrasonic wave was changed to 160 kHz. Further, composite materials of Comparative Examples 1, 2, and 3 were produced in the same manner as in Example 1 except that the ultrasonic frequency was changed to 28 kHz, 38 kHz, and 200 kHz.
  • FIG. 3A is an SEM photograph showing a part of the surface of the carbon fiber 12a in the carbon fiber bundle 12 in the composite material of Example 1, and FIG. 3B is an enlarged photograph of FIG. 3A. A state is shown in which a plurality of CNTs 14a are evenly dispersed on the surface of the carbon fiber 12a and are attached in a structure 14.
  • FIG. 4A is an SEM photograph showing a part of the surface of the carbon fiber 12a in the carbon fiber bundle 12 in the composite material of Example 2, and FIG. 4B is an enlarged photograph of FIG. 4A. Similar to Example 1, in Example 2, it can be seen that a plurality of CNTs 14a are evenly dispersed on the surface of the carbon fiber 12a to form the structure 14 and adhere thereto.
  • the frequency of ultrasonic vibration was 130 kHz in Example 1 and 160 kHz in Example 2.
  • the CNTs 14a are satisfactorily adhered to the surfaces of the carbon fibers 12a in the carbon fiber bundle 12 to form the structures 14.
  • the carbon fiber bundle 12 is substantially free from entanglement between the carbon fibers 12a. It is presumed that the prepreg obtained by impregnating the composite materials of Examples 1 and 2 with resin can sufficiently exhibit CNT-derived characteristics and has high strength.
  • FIG. 5A is an SEM photograph showing a part of the surface of the carbon fiber 52a in the carbon fiber bundle in the composite material of Comparative Example 1
  • FIG. 5B is an enlarged photograph of FIG. 5A
  • 6A is an SEM photograph showing a part of the surface of the carbon fiber 52a in the carbon fiber bundle in the composite material of Comparative Example 2
  • FIG. 6B is an enlarged photograph of FIG. 6A.
  • the structure 14 is formed by dispersing a plurality of CNTs 14a on the surface of the carbon fiber 52a.
  • the carbon fibers 52a in the carbon fiber bundle had many entanglements.
  • the frequency of the ultrasonic vibration is 28 kHz in Comparative Example 1 and 38 kHz in Comparative Example 2. Since the carbon fibers 52a in the carbon fiber bundle are entangled with each other, even if the composite materials of Comparative Examples 1 and 2 are impregnated with resin, it is difficult to obtain a prepreg having high strength.
  • FIG. 7A is an SEM photograph showing a part of the surface of the carbon fiber 62a in the carbon fiber bundle in the composite material of Comparative Example 3, and FIG. 7B is an enlarged photograph of FIG. 7A.
  • the composite material of Example 3 includes carbon fibers 62a to which CNTs 14a are hardly attached on the surface.
  • the structure 14 is not formed on the surface of the carbon fiber 62a.
  • the frequency of ultrasonic vibration was set to 200 kHz.
  • the prepreg that sufficiently exhibits the CNT-derived characteristics even when the composite material of Comparative Example 3 is impregnated with a resin is I can't get it.
  • an ultrasonic vibration having a frequency of more than 40 kHz and less than 180 kHz is applied using a dispersion liquid in which CNTs are isolated and dispersed
  • other conditions are not particularly limited and can be changed as appropriate.
  • a carbon fiber bundle containing a plurality of continuous carbon fibers a composite material can be manufactured from which a high-strength prepreg exhibiting sufficient CNT-derived characteristics can be obtained.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
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  • Chemical Or Physical Treatment Of Fibers (AREA)
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Abstract

L'invention concerne un procédé de production pour un matériau composite (10), et ledit matériau composite (10). Le procédé de production comprend une étape dans laquelle : un faisceau de fibres de carbone (12) comprenant une pluralité de fibres de carbone reliées (12a) est immergé dans un fluide d'isolation et de dispersion de nanotube de carbone comprenant une pluralité de nanotubes de carbone isolés et dispersés (14a); une vibration ultrasonore ayant une fréquence supérieure à 40 kHz et inférieure à 180 kHz est appliquée; et une structure comprenant la pluralité nanotubes de carbone (14a) est formée sur la surface de chacune de la pluralité de fibres de carbone (12a). La structure est fixée directement à la surface de chacune de la pluralité de fibres de carbone (12a) et un pré-imprégné à haute résistance présentant des caractéristiques dérivées de CNT suffisantes et ayant une structure en réseau, dans laquelle les nanotubes de carbone (14a) sont reliés directement l'un à l'autre, peut être obtenu.
PCT/JP2016/060464 2015-03-31 2016-03-30 Procédé de production de matériau composite et matériau composite WO2016159122A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US15/561,944 US20180119332A1 (en) 2015-03-31 2016-03-30 Composite material production method and composite material
CN201680013245.5A CN107429477B (zh) 2015-03-31 2016-03-30 复合材料的制造方法及复合材料
EP16773003.5A EP3279394B1 (fr) 2015-03-31 2016-03-30 Procédé de production de matériau composite
KR1020177025067A KR20170131391A (ko) 2015-03-31 2016-03-30 복합 소재의 제조 방법 및 복합 소재

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JP2015-073674 2015-03-31
JP2015073674A JP6521701B2 (ja) 2015-03-31 2015-03-31 複合素材の製造方法

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EP (1) EP3279394B1 (fr)
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KR (1) KR20170131391A (fr)
CN (1) CN107429477B (fr)
TW (1) TW201702292A (fr)
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WO2018151053A1 (fr) * 2017-02-14 2018-08-23 ニッタ株式会社 Article moulé renforcé par fibres de carbone

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JP6923272B2 (ja) * 2017-02-14 2021-08-18 ニッタ株式会社 バドミントンラケット、テニスラケット、ゴルフクラブ、スノーボード、又は自転車に使用するシャフトおよびフレーム
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CN112567091B (zh) * 2018-06-11 2023-05-02 霓达株式会社 复合材料、预浸料坯、碳纤维增强成型体及复合材料的制造方法
JP7360786B2 (ja) * 2018-08-14 2023-10-13 ニッタ株式会社 複合素材の製造方法
WO2021100735A1 (fr) * 2019-11-20 2021-05-27 ニッタ株式会社 Matériau composite et son procédé de production
KR20220093248A (ko) * 2019-11-20 2022-07-05 니타 가부시키가이샤 복합 소재 및 그 제조 방법
JP7406959B2 (ja) * 2019-11-20 2023-12-28 ニッタ株式会社 複合素材、炭素繊維強化成形体及び複合素材の製造方法
CN112466681B (zh) * 2020-11-20 2022-01-14 东莞东阳光科研发有限公司 一种电极及其制备方法
US20230087214A1 (en) * 2021-09-22 2023-03-23 Hao-Chia WU Method for splitting carbon fiber tow

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CN107429477B (zh) 2021-03-26
CN107429477A (zh) 2017-12-01
EP3279394A4 (fr) 2018-09-05
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JP6521701B2 (ja) 2019-05-29
EP3279394A1 (fr) 2018-02-07

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