WO2021092787A1 - Procédé et appareil de fabrication d'un matériau renforcé par des fibres modifiées par des nanotubes de carbone - Google Patents

Procédé et appareil de fabrication d'un matériau renforcé par des fibres modifiées par des nanotubes de carbone Download PDF

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Publication number
WO2021092787A1
WO2021092787A1 PCT/CN2019/117972 CN2019117972W WO2021092787A1 WO 2021092787 A1 WO2021092787 A1 WO 2021092787A1 CN 2019117972 W CN2019117972 W CN 2019117972W WO 2021092787 A1 WO2021092787 A1 WO 2021092787A1
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Prior art keywords
carbon nanotubes
fiber
resin
fiber bundle
carbon
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PCT/CN2019/117972
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English (en)
Chinese (zh)
Inventor
孙建旭
梁嫄
马豪
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远景能源有限公司
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Priority to CN201980042079.5A priority Critical patent/CN113115585A/zh
Priority to PCT/CN2019/117972 priority patent/WO2021092787A1/fr
Publication of WO2021092787A1 publication Critical patent/WO2021092787A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/14—Dipping a core
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention generally relates to the field of wind power generators, and in particular, to a method for manufacturing carbon nanotube modified fiber reinforced materials.
  • the present invention also relates to a device for manufacturing carbon nanotube modified fiber reinforced materials.
  • the blades of a wind turbine are important components for wind turbines to capture wind energy.
  • the blades installed on the hub of the wind turbine rotate under the drive of wind energy to generate lift, which is further converted into torque through the transmission chain in the nacelle to drive the generator to generate electricity.
  • the larger the impeller formed by the blades the more wind energy can be captured. Therefore, the blades of the wind turbine have a tendency to become longer and longer, but this puts higher and higher requirements on the flapping rigidity of the blades, because the blades The longer it is, the greater the deformation. Therefore, a more efficient method is needed to increase the blade swing stiffness to avoid the risk of tower sweeping.
  • the shell generally has a sandwich panel composed of glass fiber reinforced plastic and a core material and a main bearing component—a main beam, where the main beam contributes about 90% of the overall swing rigidity.
  • the present invention provides a method and equipment for manufacturing carbon nanotube modified fiber reinforced materials (or “materials” for short).
  • the carbon nanotubes The tube introduces the material and ensures the concentration of the introduced carbon nanotubes in the resin and makes the introduced carbon nanotubes more evenly distributed among the fiber bundles or filaments, thereby significantly improving the compressive strength of the fiber-reinforced composite material And reduce the sensitivity of the material strength to the manufacturing process, thereby significantly improving the strength of the material and the main bearing components of the blade (such as the main beam, etc.).
  • this task is solved by a method for manufacturing carbon nanotube modified fiber reinforced materials, the method including the following steps:
  • the fiber bundle coated with the potting material is extruded to form the carbon nanotube modified fiber reinforced material.
  • fiber bundle covers a single fiber and a bundle of multiple single fibers. Moreover, the fiber bundle may include one or more fibers.
  • the carbon nanotubes are single-walled carbon nanotubes or multi-walled carbon nanotubes.
  • carbon nanotubes may also exist in other forms, such as a composite containing carbon nanotubes, carbon nanotube powder, carbon nanotube particles, and so on.
  • the method further includes the following steps:
  • the potting material is stirred in the potting tank.
  • the uniformity of the carbon nanotubes in the matrix can be further improved, thereby further improving the compressive strength of fibers, such as carbon fibers.
  • the volume of the glue filling tank is less than or equal to 100 liters, preferably less than or equal to 50 liters.
  • the fiber bundle includes one or more of the following: carbon fiber, glass fiber, aramid fiber, boron fiber, basalt fiber, and ultra-high modulus polyethylene fiber.
  • carbon fiber glass fiber
  • aramid fiber boron fiber
  • basalt fiber basalt fiber
  • ultra-high modulus polyethylene fiber under the teaching of the present invention, other fiber bundles can be used as needed in other embodiments.
  • the matrix includes one or more of the following: thermosetting epoxy resin, vinyl resin, unsaturated polyester resin, phenol resin, polyurethane resin and thermoplastic resin.
  • thermosetting epoxy resin vinyl resin
  • unsaturated polyester resin unsaturated polyester resin
  • phenol resin unsaturated polyester resin
  • polyurethane resin polyurethane resin
  • thermoplastic resin thermoplastic resin
  • other substrates can be used as needed, as long as the substrate can be coated on the fiber bundle to form the desired material.
  • the matrix is a resin.
  • the thermoplastic resin includes one or more of the following: polypropylene resin, polyethylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylonitrile-butadiene resin Ethylene-styrene resin, polyamide resin, polyether ether ketone resin, and polyphenylene sulfide resin.
  • polypropylene resin polyethylene resin
  • polyvinyl chloride resin polystyrene resin
  • polyacrylonitrile-butadiene resin Ethylene-styrene resin
  • polyamide resin polyamide resin
  • polyether ether ketone resin polyphenylene sulfide resin
  • the carbon nanotubes are nanomaterials made of carbon nanotubes.
  • the nanomaterial may have a desired shape, such as a spherical shape, a powder shape, a flake shape, and so on.
  • materials with different physical properties such as different compressive strengths, can be manufactured.
  • a device for manufacturing carbon nanotube modified fiber reinforced materials which includes:
  • a creel having a reel for winding the fiber bundle, wherein the reel is configured to rotate to convey the fiber bundle when the fiber bundle is pulled;
  • a pulling device which is configured to directly or indirectly pull the fiber bundle so that the fiber bundle is in a pulling state
  • An injection box having a potting tank for accommodating a potting material and a first adding device for adding carbon nanotubes, wherein the injection box is configured to allow a fiber bundle in a pulled state to pass through the potting tank , So that the infusion material is infiltrated onto the fiber bundle, wherein the infusion material includes a matrix and carbon nanotubes;
  • the forming device is configured to squeeze the fiber bundle impregnated with the potting material to form the carbon nanotube modified fiber reinforced material.
  • the injection box further includes a second adding device for adding the matrix.
  • the matrix can be dynamically and automatically added to the injection box to ensure sufficient filling material.
  • the amount of matrix remaining in the injection box can be detected by a liquid level detection device, and automatically added when it is lower than the threshold, or The matrix can be added in real time according to the matrix consumption rate, so as to ensure the concentration of the introduced carbon nanotubes in the resin.
  • multiple matrix injection directions can be set to form a vortex, so as to achieve sufficient mixing of the matrix and the carbon nanotubes.
  • the device further includes:
  • a heater configured to heat the formed carbon nanotube modified fiber reinforced material
  • the curing chamber is configured to cure the heated carbon nanotube modified fiber reinforced material.
  • a cutting device can also be provided to cut the material into a desired shape.
  • the device further includes a fiber bundle shaping frame, which is arranged between the creel and the injection box for adjusting the relative position between the fiber bundles.
  • a fiber bundle shaping frame which is arranged between the creel and the injection box for adjusting the relative position between the fiber bundles.
  • the relative position between the fiber bundles can be adjusted.
  • the fiber bundles can be evenly spaced so that the resin layer can be filled with substantially the same thickness between the fiber bundles, thereby filling approximately the same carbon nanotubes between them, thereby improving the properties of the material, such as compression strength.
  • the volume of the glue pot is less than or equal to 100 liters, preferably less than or equal to 50 liters.
  • the injection box further has a stirring device configured to uniformly distribute the carbon nanotubes in the matrix.
  • a stirring device configured to uniformly distribute the carbon nanotubes in the matrix.
  • the present invention also relates to a carbon nanotube modified fiber reinforced material, which is manufactured using the method according to the present invention.
  • the present invention also relates to a main beam for a wind turbine blade, which has the carbon nanotube modified fiber reinforced material according to the present invention.
  • the present invention has at least the following beneficial effects: (1) By adding carbon nanotubes between fiber bundles, especially carbon fiber fiber bundles, the interface performance between the fiber and the resin can be significantly improved, thereby improving the compressive strength of the composite material after molding; 2) By dynamically adding carbon nanotubes directly to the glue tank, the concentration and uniform distribution of carbon nanotubes between the fiber bundles can be significantly improved, thereby ensuring uniform compressive strength, which is based on the following insights of the present inventors : The inventor found through research that an important reason why the strength of the main beam material is sensitive to the manufacturing process is that the existing mixing process is difficult to uniformly distribute the reinforcing particles in the resin, and the uneven distribution of the reinforcing particles in the resin will cause This leads to significant changes in the strength of the main beam material, especially the compressive strength (for example, the strength where the concentration of the reinforcement particles is lower is also lower), resulting in that the strength of the main beam material is very dependent on the uniform stirring process of the reinforcement particles; at the same time, the present invention Unexpectedly, it was
  • the carbon nanotubes can be distributed more uniformly, or the carbon nanotubes can be input at a uniform speed without stirring. It can be evenly infiltrated or coated on the fiber bundle. Compared with fully stirring in a large container in advance, it can not only ensure the required concentration of carbon nanotubes and improve the uniformity of stirring, but also simplify the stirring process. It can increase the concentration and uniform distribution of carbon nanotubes between fiber bundles, thereby increasing the compressive strength of the fiber bundles and reducing the sensitivity of the material to the manufacturing process.
  • Figure 1 shows a schematic diagram of an apparatus for manufacturing carbon nanotube modified fiber reinforced materials according to the present invention
  • Figure 2 shows a cross-sectional view of a carbon nanotube modified fiber reinforced material according to the present invention
  • Figure 3 shows a cross-sectional view of the main beam according to the present invention
  • Figure 4 shows a cross-sectional view of a fan blade according to the present invention.
  • Fig. 5 shows a flow chart of a method for manufacturing a carbon nanotube modified fiber reinforced material according to the present invention.
  • the quantifiers "one” and “one” do not exclude the scenario of multiple elements.
  • the number of the steps of each method of the present invention does not limit the execution order of the method steps. Unless otherwise specified, the method steps can be performed in a different order.
  • the present invention is based on the inventor’s insight as follows:
  • the strength of the existing main beam material, especially the compressive strength, is sensitive to the manufacturing process. An important reason is that in the manufacturing process of the existing main beam material, the pouring material is very large.
  • the mixing is carried out in the container, and since the amount of reinforcing particles added in the large container is much smaller than the amount of resin, the distribution of the reinforcing particles in the resin is greatly dependent on the mixing process, and even if the mixing is for a long time It is still not necessary to mix uniformly, which results in a large change in the strength of the manufactured material (for example, the strength of the reinforced particle is lower); the inventor found through research that the carbon nanotubes are directly added to The glue tank can significantly increase the concentration and uniform distribution of carbon nanotubes between the fiber bundles, thereby further improving the compressive strength, which is based on the following insights of the present inventor; this is because, compared with the large container (such as 2 tons) Compared with the pre-mixed carbon nanotube
  • Fig. 1 shows a schematic diagram of an apparatus 100 for manufacturing a carbon nanotube modified fiber reinforced material according to the present invention.
  • the apparatus 100 for manufacturing carbon nanotube modified fiber reinforced material includes the following components (some of which are optional):
  • the creel 101 has a reel 102 for winding the fiber bundle.
  • the creel 101 has 12 reels 102. In other embodiments, other numbers of reels may be provided.
  • the creel 101 can be placed vertically or horizontally, and the reel 102 is arranged with its rotation axis perpendicular to the plane where the creel 101 is located.
  • the reel 102 is configured to rotate with the fiber bundles 103a, 103b being pulled to convey the fiber bundles 103a, 103b.
  • the spool 102 carries two different fiber bundles 103a and 103b. In other embodiments, more kinds or one kind of fiber bundles may be provided.
  • Different fiber bundles 103a and 103b can be distinguished in terms of their composition, thickness, or other parameters, for example.
  • the fiber bundles 103a and 103b include or are carbon fiber bundles, thereby improving the tensile strength of the material.
  • a pulling device (not shown), which is configured to directly or indirectly pull the fiber bundles 103a, 103b to put the fiber bundles in a pulling state.
  • the pulling device may pull the fiber bundles 103a, 103b at the finished material 111 or other locations.
  • the pulling force may be so large that the fiber bundles 103a, 103b can be straightened and the reel 102 can be rotated at a desired speed to convey the fiber bundles 103a, 103b at the desired speed.
  • the pulling device may be, for example, a stepping motor, which pulls and drives the fiber bundles 103a, 103b to advance through a belt.
  • Optional fiber bundle shaping frame 104 which is arranged between the creel and the injection box for adjusting the relative position between the fiber bundles.
  • the relative position between the fiber bundles 103a and 103b or between the individual fibers of the fiber bundles 103a and 103b can be adjusted.
  • the fiber bundles can be evenly spaced so that the resin layer can be filled with substantially the same thickness between the fiber bundles, thereby filling approximately the same carbon nanotubes between them, thereby improving the properties of the material, such as compression strength.
  • the injection box 105 which has a glue tank (not shown) for containing the infusion material and a first adding device for adding carbon nanotubes, wherein the injection box is configured to allow the fiber bundle in a pulling state Passing through the glue pot, the infusion material is infiltrated or coated on the fiber bundles 103a, 103b, wherein the infusion material includes resin 106 and carbon nanotubes 107.
  • the carbon nanotubes 107 may be single-walled carbon nanotubes or multi-walled carbon nanotubes.
  • the carbon nanotubes 107 may also exist in other forms, such as a composite containing carbon nanotubes, carbon nanotube powder, carbon nanotube particles, carbon nanotube nanomaterials, carbon nanotube solutions, and so on.
  • the inventors have discovered through research that using an infusion material composed of resin and carbon nanotubes to reinforce fiber bundles can significantly increase the strength, especially compressive strength, of fiber bundles compared with other materials, such as graphene.
  • the more even the distribution of carbon nanotubes in the resin the better the effect of improving the strength.
  • the carbon nanotubes 107 are dynamically added into the injection box 105 through the first adding device, and the resin 106 is dynamically added into the injection box 105 through the second adding device.
  • the first and second addition devices are, for example, conveying pipes with electric pumps. Through the first and second adding devices, the number 106 and the carbon nanotube 107 can be dynamically and automatically added to the injection box 105 to ensure sufficient filling material.
  • the amount of resin remaining in the injection box 105 can be detected by a liquid level detection device, and the resin can be automatically added when it is below a threshold, or the resin can be added in real time according to the resin consumption rate.
  • multiple resin conveying pipes with different input directions can be arranged to make the output resin form a vortex, so as to achieve sufficient mixing of the resin and the carbon nanotubes.
  • the fiber bundles 103a and 103b pass through the glue tank in the injection box 105 at a uniform speed, so that each fiber bundle can be sufficiently coated with a potting material, that is, a mixture of resin and carbon nanotubes.
  • carbon nanotubes 107 can be added at a uniform speed (that is, the same amount of carbon nanotubes 107 can be added per unit time, and the addition speed can be determined according to the required concentration of carbon nanotubes 107 in the resin 106), so that the carbon nanotubes can be input at a uniform speed.
  • the tube 107 can be evenly wetted or coated onto the fiber bundle.
  • the addition position of the carbon nanotubes is preferably close to the position where the fiber bundle contacts the potting material, so that the added carbon nanotubes can be coated on the fiber bundle immediately.
  • the volume of the glue tank is less than or equal to 100 liters, preferably less than or equal to 50 liters, for example, 40 liters, 30 liters, and so on.
  • the distribution uniformity of carbon nanotubes can be improved, thereby further improving the compressive strength of fibers, such as carbon fibers.
  • the carbon is directly added to a small-capacity glue tank (the capacity is generally less than 100L, preferably less than or equal to 50L).
  • Nanotubes will ensure the concentration of carbon nanotubes in the resin and greatly improve the uniformity of carbon nanotube distribution in the resin while simplifying the mixing process.
  • the carbon nanotubes can be distributed more evenly by adding the initial flow rate of the carbon nanotubes or by a little stirring, or without stirring, the carbon nanotubes fed at a uniform speed can be evenly coated.
  • Apply to the fiber bundle which can ensure the concentration of carbon nanotubes and improve the uniformity of mixing, and simplify the mixing process, which can improve the carbon nanotubes between the fiber bundles.
  • the concentration and uniform distribution of the fiber bundles thereby improving the compressive strength of the fiber bundle.
  • a forming device 109 which is configured to squeeze the fiber bundles 103a, 103b impregnated or coated with a potting material to form the carbon nanotube modified fiber reinforced material 111.
  • the molding device 109 is, for example, a mold.
  • Optional heater 109 which is configured to heat the formed carbon nanotube modified fiber reinforced material 111. Through the extrusion, the resin 106 and the carbon nanotubes 107 will be more deeply filled between the fiber bundles 103a and 103b.
  • An optional curing chamber (not shown) configured to cure the heated carbon nanotube modified fiber reinforcement material.
  • the curing chamber is optional because curing can also be performed outside of the equipment.
  • FIG. 2 shows a cross-sectional view of the carbon nanotube modified fiber reinforced material 111 according to the present invention.
  • the material 111 in the material 111, two types of fiber bundles 103a and 103b are distributed. In other embodiments, fewer or more types of fiber bundles are also conceivable.
  • a mixture of carbon nanotubes 107 and resin 106 is filled between the fiber bundles 103a and 103b, wherein the carbon nanotubes 107 are uniformly distributed in the mixture. Therefore, the method and equipment manufacturing material 111 according to the present invention has better strength, especially compressive strength.
  • Fig. 3 shows a cross-sectional view of the main beam 300 according to the present invention.
  • the main beam 300 includes two upper and lower layers of materials 111 according to the present invention, and a multilayer extruded plate 301 is arranged between the two layers of materials 111.
  • the pressing plate 301 is laid in two layers in the chord direction and four layers in the thickness direction.
  • other layers of extruded plates 301 may be laid in the two directions, or other layers of materials 111 may be arranged. It can be seen from FIG. 3 that by using the material 111 according to the present invention, the strength, especially the compressive strength of the main beam 300 can be improved.
  • Fig. 4 shows a cross-sectional view of a fan blade 400 according to the present invention.
  • the blade 400 includes a leading edge 401 and a trailing edge 405, as well as a pressure surface (PS surface) 402 and a suction surface (SS surface) 404.
  • the blade 400 also includes a main beam 300 as its main bearing structure, and also includes a web 403 for supporting the main beam 300.
  • the strength of the main beam 300 can be significantly increased, thereby increasing the strength of the entire blade 400.
  • FIG. 5 shows a process 500 of a method for manufacturing a carbon nanotube modified fiber reinforced material according to the present invention.
  • the fiber bundle may include one or more fiber bundles.
  • step 504 the fiber bundle is pulled.
  • step 506 carbon nanotubes are added to the glue pot so that the carbon nanotubes and the matrix in the glue pot form a potting material.
  • the addition is an on-site, dynamic addition, which can increase the uniformity of the carbon nanotubes in the resin and simplify the adding and stirring procedures.
  • carbon nanotubes can be added at a uniform speed (that is, the same amount of carbon nanotubes can be added per unit time, and the addition speed can be determined according to the required concentration of carbon nanotubes in the resin), so that the required concentration and uniform speed of carbon nanotubes are guaranteed
  • the imported carbon nanotubes can be evenly coated on the fiber bundle.
  • the addition position of the carbon nanotubes is preferably close to the position where the fiber bundle contacts the potting material, so that the added material can be applied to the fiber bundle immediately.
  • step 508 the potting material is applied to the fiber bundle in the pulling state in the glue pot.
  • the fiber bundle can be pulled through the glue tank so that the infusion material in the glue tank is automatically and evenly applied to the fiber bundle, especially each fiber in the fiber bundle.
  • step 510 the fiber bundle coated with the potting material is extruded to form a carbon nanotube modified fiber reinforced material.
  • the present invention has at least the following beneficial effects: (1) By adding carbon nanotubes between fiber bundles, especially carbon fiber fiber bundles, the interface performance between the fiber and the resin can be significantly improved, thereby improving the compressive strength of the composite material after molding; 2) By dynamically adding carbon nanotubes directly to the glue tank, the concentration and uniform distribution of carbon nanotubes between the fiber bundles can be significantly improved, thereby ensuring uniform compressive strength, which is based on the following insights of the present inventors : The inventor found through research that an important reason why the strength of the main beam material is sensitive to the manufacturing process is that the existing mixing process is difficult to uniformly distribute the reinforcing particles in the resin, and the uneven distribution of the reinforcing particles in the resin will cause This leads to significant changes in the strength of the main beam material, especially the compressive strength (for example, the strength where the concentration of the reinforcement particles is lower is also lower), resulting in that the strength of the main beam material is very dependent on the uniform stirring process of the reinforcement particles; at the same time, the present invention Unexpectedly, it was
  • the carbon nanotubes can be distributed evenly and the required concentration can be ensured, or at a uniform speed without stirring.
  • the carbon nanotubes fed from the ground can be evenly coated on the fiber bundles. Compared with fully stirring in a large container in advance, this can not only ensure the required concentration of carbon nanotubes and improve the uniformity of stirring, but also simplifies the stirring.
  • the process can increase the concentration and uniform distribution of carbon nanotubes between the fiber bundles, thereby increasing the compressive strength of the fiber bundles and reducing the sensitivity of the material to the manufacturing process.

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  • Mechanical Engineering (AREA)
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Abstract

La présente invention concerne un procédé de production d'un matériau renforcé par des fibres modifiées par des nanotubes de carbone. Le procédé comprend les étapes suivantes : fournir un faisceau de fibres ; tirer le faisceau de fibres ; ajouter des nanotubes de carbone à un réservoir d'enrobage de colle de telle sorte que les nanotubes de carbone et une matrice dans le réservoir d'enrobage de colle forment ensemble un matériau d'enrobage ; imprégner le faisceau de fibres, qui est dans un état tiré, dans le matériau d'enrobage dans le réservoir d'enrobage de colle ; et presser le faisceau de fibres, qui est revêtu du matériau d'enrobage, pour former un matériau renforcé par des fibres modifiées par des nanotubes de carbone. De plus, la présente invention concerne également un appareil de fabrication d'un matériau renforcé par des fibres modifiées par des nanotubes de carbone. Selon la présente invention, des nanotubes de carbone peuvent être facilement introduits dans un matériau, et les nanotubes de carbone introduits peuvent être répartis de manière plus uniforme entre des faisceaux de fibres ou des filaments de fibres, de telle sorte que la résistance à la compression des faisceaux de fibres peut être considérablement améliorée, et la sensibilité de résistance du matériau à un procédé de fabrication peut être réduite, permettant ainsi d'améliorer significativement la résistance du matériau et d'une lame.
PCT/CN2019/117972 2019-11-13 2019-11-13 Procédé et appareil de fabrication d'un matériau renforcé par des fibres modifiées par des nanotubes de carbone WO2021092787A1 (fr)

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CN201980042079.5A CN113115585A (zh) 2019-11-13 2019-11-13 一种用于制造碳纳米管改性纤维增强材料的方法及设备
PCT/CN2019/117972 WO2021092787A1 (fr) 2019-11-13 2019-11-13 Procédé et appareil de fabrication d'un matériau renforcé par des fibres modifiées par des nanotubes de carbone

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