WO2005054554A1 - 炭素繊維紡績糸およびその織物 - Google Patents
炭素繊維紡績糸およびその織物 Download PDFInfo
- Publication number
- WO2005054554A1 WO2005054554A1 PCT/JP2004/018103 JP2004018103W WO2005054554A1 WO 2005054554 A1 WO2005054554 A1 WO 2005054554A1 JP 2004018103 W JP2004018103 W JP 2004018103W WO 2005054554 A1 WO2005054554 A1 WO 2005054554A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon fiber
- spun yarn
- spun
- fiber
- yarn
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/16—Yarns or threads made from mineral substances
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
- D03D15/275—Carbon fibres
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/41—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific twist
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/573—Tensile strength
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
Definitions
- the present invention relates to a carbon fiber spun yarn and a woven fabric thereof, and more particularly, to a thin carbon fiber spun yarn having excellent strength, and a use thereof as a gas diffusion (current collector) of a solid polymer electrolyte fuel cell comprising the yarn. It relates to a suitable carbon fiber spun yarn fabric.
- PAN-based and rayon-based carbon fibers made from polyacrylonitrile (PAN) and rayon as carbon fibers and pitch-based carbon fibers made from pitches are produced.
- PAN-based carbon fibers are mainly high-strength types.
- pitch-based carbon fibers include anisotropic carbon fibers and isotropic carbon fibers.Since anisotropic carbon fibers have high crystal integrity and a high orientation structure in the fiber axis direction of the hexagonal mesh plane, It has a high specific elastic modulus and thermal conductivity, and is used for sports leisure applications and aerospace applications.
- pitch-based isotropic carbon fiber is relatively inexpensive because its raw material is inexpensive and its production method is advantageous for mass production, and it does not exhibit high strength or high elastic modulus, but it is lightweight, chemically resistant, and heat-resistant. It is widely used due to its properties such as slidability, slidability and conductivity.
- Carbon fibers are used in many forms, including filaments, yarns, spun yarns, woven fabrics, chops, minorides, mats, and prepregs, and the firing temperature and degree of graphitization can be varied depending on the application.
- carbon fiber woven fabric is used as a constituent material of heat insulating material, sliding material, and conductive material, and is required to have an affinity with polymer materials, and it is important to control the thickness and voids of the woven fabric.
- the main functions of the gas diffuser in the polymer electrolyte fuel cell are the supply of reactant gas to the catalyst layer and current collection. Therefore, gas permeability and conductivity are the most necessary characteristics, but in addition, flexibility and high tensile strength are required (Patent Document 1 below).
- high conductivity can be obtained by performing a heat treatment at a high temperature of 2000 ° C. or higher to increase the degree of graphitization.
- the gas permeability is determined by the porosity (porosity) of the woven fabric.
- porosity porosity
- the contact with the catalyst layer is poor, causing a problem in current collection.
- Patent Document 2 Considering the supply of gas to the catalyst layer, it is necessary for the reaction gas to diffuse by the thickness of the gas diffuser in order for the reaction gas to reach the catalyst layer.If the gas diffusion layer is too thick, the performance may be reduced. Become. Therefore, it is necessary to appropriately control the thickness of the carbon fiber fabric as a gas diffuser.
- a spun yarn woven fabric having an appropriate thickness and a heat history of 200 ° C. or more is preferable as the gas diffuser.
- a method of weaving a spun yarn made of flame-resistant fiber or carbonaceous fiber into a woven fabric, and then heat-treating the woven fabric at a temperature of 200 ° C. or more can be used.
- spun yarns of PAN-based oxidized fiber and pitch-based spun yarns are known.
- Spun yarn made of PAN-based flame-resistant fiber has a relatively small spun yarn diameter and is strong, and can be woven.However, when heat-treated at 200 ° C, the strength is extremely reduced, and weaving may occur. Have difficulty. Therefore, the target fabric cannot be obtained unless the method of weaving the oxidized fiber and heat-treating it at 2000 ° C. is used. However, there is an important drawback in that the strength of the obtained woven fabric is reduced because the fiber is strained by the heat treatment and the strength of the spun yarn is reduced by the heat treatment.
- a carbon fiber woven fabric may contain particulate fluororesin (Patent Document 1 below), or may be backed with a carbon layer containing fluororesin (see Patent Document 2 below).
- Patent Document 1 particulate fluororesin
- Patent Document 2 a carbon layer containing fluororesin
- Paragraphs [0 2 3]) have been adopted, but these methods necessarily have a disadvantage in that the current collecting function of the gas diffuser is reduced.
- the strength of the carbon fiber spun yarn thus obtained is about 0.08 to 0.09 N / tex, which is not yet satisfactory.
- Patent Document 2 Japanese Patent Application Laid-Open No. 2003-288096
- Patent Document 3 Japanese Patent Application Laid-open No. Sho 533-81753
- the present invention provides a carbon fiber spun yarn having a carbonaceous or graphitic structure, and having a thin, high tensile strength, and excellent gas permeability and high conductivity.
- An object of the present invention is to provide a carbon fiber fabric suitable for use as a gas diffuser for a solid polymer electrolyte fuel cell having excellent mechanical properties.
- the present inventors have obtained a fine and high-strength carbon fiber spun yarn in the course of the research for the above-mentioned purpose, and by weaving the carbon fiber spun yarn, the carbon fiber spun yarn has an appropriate fiber thickness and has a gas permeability.
- the present inventors have found that a carbon fiber spun yarn woven fabric suitable as a gas diffuser for a solid polymer electrolyte fuel cell having excellent conductivity and good mechanical strength is obtained, and arrived at the present invention.
- the spun yarn of the present invention has an average layer spacing of 0.304 to 0.380 nm determined by the X-ray diffraction method, and a specific gravity of 1.55 to 1 determined by the density gradient tube method. 80. It consists of a carbon fiber bundle containing 3 to 30% by weight of carbon fiber with an atomic ratio (H / C) of hydrogen atom to carbon atom determined by elemental analysis of 0.1 or less and a fiber length of 15 Omm or more. , Weight per 100m (tex) Force S 30 ⁇ 150g, Number of primary twists 50 ⁇ 400 times Zm, Tensile strength 0.15N / tex or more It is.
- the carbon fiber and the yarn of the present invention are as thin as 30 to 150 te X and exhibit a high tensile strength of 0.15 NZ tex or more is that they contain long carbon fibers at an appropriate ratio. It is probable that the carbon fiber bundle was moderately spun.
- the spun yarn is a long yarn bundle in which short fibers are twisted together and short single fibers are entangled to connect the short fibers together.
- the tensile strength is maintained by the frictional force due to the entanglement (contact) between the single fibers.
- the more entanglement the greater the contact area between the fibers, the greater the friction and the greater the strength.
- the higher the burn the stronger the fibers are pressed against each other, increasing the frictional force and improving the tensile strength of the spun yarn.
- the longer the fiber length used the smaller the number of splicing points between fibers, so that the strength of the obtained spun yarn is improved.
- the number of twists is 50 to 400 times / m, and by using relatively long fibers as a raw material, they belong to the category of short fibers, but have been conventionally employed, for example, about 25 to 80 mm (see paragraph [0] 0 1 4] 3 to 30 weights of carbon fiber of 150 mm or more, which is considerably longer than that of the above.
- By spinning a fine fiber bundle containing an appropriate ratio of / 0 it is understood that a fine and high-strength spun carbon fiber yarn was obtained as described above.
- the carbon fiber spun yarn woven fabric of the present invention is obtained by weaving the fine and high-strength carbon fiber spun yarn obtained as described above, and is used as a gas diffuser for a solid polymer electrolyte fuel cell. It has a suitable form.
- the average interlayer spacing is preferably from 0.340 to 0.380 nm, more preferably from 0.340 to 0.3 nm and 5 nm.
- H_C hydrogen atoms to carbon atoms
- the specific gravity of the carbon fiber is also related to the HZC ratio, and generally falls within the range of 1.55 to 1.80, preferably 1.58 to 1.65, as measured by a density gradient tube method. Too small and too large have the same disadvantages as HZ C too high or too low, respectively.
- the fiber length of the carbon fibers that make up the spun yarn is too long, when producing the spun yarn from the fiber bundle, several fiber bundles are stretched several times by a drawing machine (by passing between rollers with different rotation speeds). In the process of further improving the parallelism of the fibers as a single fiber bundle, the fiber length becomes longer than the distance between the rollers, causing thread breakage and causing problems in the process. On the other hand, if the fiber length is short, the strength of the obtained spun yarn decreases. Therefore, as the fiber length of the carbon fiber constituting the spun yarn, 3 to 30 weight of carbon fiber of 150 mm or more. / 0 is preferably contained, and more preferably 15 to 20 weight% or more of carbon fiber. / 0 .
- Carbon fiber of 150 mm or less is treated in a process using a carding machine and a drawing machine. It is formed by cutting raw fibers as appropriate, but generally has a fiber length mainly in the range of 50 to 15 Omm, and contains 70 to 97% by weight in a moderate distribution. As a result, it is possible to prevent a problem that the spun yarn becomes uneven in thickness, which can occur when spinning only carbon fibers having a size of 15 Omm or more, resulting in uneven thickness and strength of the woven fabric.
- the carbon fiber having a fiber length of less than 5 Omm is substantially 20% by weight or less.
- Carbon fibers (filaments) generally have an average diameter in the range of 5-20 / im.
- the thickness of a spun yarn obtained by spinning a carbon fiber bundle as described above is generally 100
- teX weight (g) per Om. If the spun yarn is thick, it is not preferable because a thin woven fabric cannot be obtained. If it is too thin, sufficient strength for weaving cannot be obtained, and furthermore, the air permeability of the obtained woven fabric is undesirably reduced. Preferably 30 to 1
- 50 tex more preferably 30 to 100 tex, and particularly preferably 30 to 80 tex.
- the number of twists of spun yarn has a great effect on strength. If the number of burns is small, the tensile strength decreases, which is not preferable. Also, if too much, it will cause fiber rupture, which is not desirable. It is preferably from 50 to 400 times / m, more preferably from 100 to 200 times Zm.
- the reverse twist of 60% ⁇ 5% is applied as a secondary twist to the next twist. Is received. In the case of three twists, a reverse twist of 55% ⁇ 5% is applied as a secondary twist to a primary twist.
- the spun yarn of the present invention has a tensile strength of 0.15 NZtex or more, and preferably 0.2 NZtex or more. .
- the spun yarn of the present invention is produced, for example, by the following method.
- both pitch-based carbon fibers and carbon fibers made of polyacrylonitrile and rayon can be used.
- the carbon fibers constituting the spun yarn of the present invention have high tensile strength due to being carbonized before spinning, but additional heat treatment is performed to adjust the degree of graphitization. Is performed as needed.
- Pitch-based carbon fibers include carbon fibers made from anisotropic pitch and carbon fibers made from isotropic pitch.
- Carbon fibers made from anisotropic pitch have high elastic modulus due to heat treatment. Therefore, it is preferable to use a carbon fiber using an isotropic pitch, since the entanglement between the fibers becomes insufficient.
- the heat treatment may be performed before the spun yarn or after the spun yarn.
- heat treatment temperature b Preferably, the temperature is from 700 ° C. to 300 ° C., more preferably from 150 ° C. to 250 ° C.
- the length of carbon fiber varies depending on the manufacturing method. If it is a long fiber, it can be cut into short lengths, but if the short fiber has an appropriate length, it can be used as it is, using a suitable cutting machine. The fiber length may be controlled before use.
- a spun yarn can be manufactured by the following method.
- the carbon fibers were cut into short fibers having a length of 15 O mm or more by a cutting machine to obtain a carbon fiber bundle in which the fibers were aligned by a carding machine. Combining (doubling) several carbon fiber bundles, drawing (drafting) them several times longer, further improving the parallelism of the fibers as a single carbon fiber bundle and making it thinner. The bundle can be further drawn and twisted to obtain a spun yarn.
- the spinning of pitch-based staple fibers includes centrifugal method in which the molten pitch is generated from the nozzle using centrifugal force, melt-pro method in which the molten pitch is blown together with high-temperature, high-speed air, and high-temperature, high-speed air in the melt-pro method.
- melt-pro method in which the molten pitch is blown together with high-temperature, high-speed air, and high-temperature, high-speed air in the melt-pro method.
- the air sucker method in which fibers are drawn into a hair sucker nozzle and drawn, and collected after the outlet. The short carbon method obtained by any of these methods is used. Fiber bundles and carbon fiber mats can also be used.
- the spun yarn of the present invention is preferably a single twist yarn in order to obtain a thin yarn, but may be a filter twist yarn as required within a thickness range of 30 to 150 tex. it can.
- a spun yarn woven fabric suitable as a gas diffuser for a solid polymer electrolyte fuel cell can be obtained.
- a spun yarn fabric suitable for use as a gas diffuser for a polymer electrolyte fuel cell will be described.
- the FAW of the woven fabric is preferably 50 g Zm 2 or more and less than 200 g Zm 2 , more preferably 100 g Zm 2 or more and less than 200 g Zm 2 .
- the thickness of the fabric is preferably from 0.20 to 0.6 Omm, more preferably from 0.20 to 0.4 Omm.
- the spun yarn of the present invention has a weight of 30 as at least one of a warp and a weft that can effectively utilize its strength. / 0 or more, preferably 40% by weight or more.
- the volume resistivity is preferably 20 to 1,500 ⁇ m, more preferably 50 to 700 ⁇ , and particularly preferably 50 to 400 ⁇ -m.
- the peak position of the diffraction line is determined by the center of gravity method (the method of determining the center of gravity of the diffraction line and determining the peak position using the corresponding 20 value). ) Capture using diffraction lines, and d from the following Bragg formula. . 2 was calculated.
- a predetermined amount of zinc chloride and 1% hydrochloric acid were weighed into a beaker and mixed. This was transferred to a 50 Om 1 measuring cylinder, immersed in a low-temperature constant temperature water bath at 20 ⁇ 1.0 ° C, adjusted to 20 ⁇ 1.0 ° C, and the specific gravity was measured with a hydrometer. Ten types of specific gravity liquids were prepared by appropriately changing the relative amounts of zinc chloride and 1% hydrochloric acid.
- Each of the 10 types of specific gravity liquids was poured into a 20 m1 measuring cylinder at a rate of 2 m1 from each having a high specific gravity while gently passing down the tube wall, thereby producing a density gradient tube.
- this density gradient tube is immersed in a low-temperature constant temperature water bath at 20 ⁇ 1.0 ° C, and after 30 minutes, crushed with a mortar and passed through a standard sieve with an aperture of 150 m.
- 1 g was dispersed in a small amount of ethanol, gently placed in a density gradient tube, and allowed to stand for at least 12 hours. After a lapse of more than 12 hours, the position of the sample in the density gradient tube was read, and the specific gravity of the sample was determined from the specific gravity conversion table.
- Carbon fiber test method was measured in accordance with the test of a single fiber of JISR 7601-1—1996. Specifically, a filament yarn with a fiber length of 4 to 5 cm is taken out from the sample, opened by an appropriate method, and single fibers are taken out one by one, and the same JIS 6.6.1 (2.3 Using the backing specified in), the short fibers were stretched straight along the center line of the backing, and two places were fixed with conductive paint so as to have the specified length. At the same time, the copper wire was fixed together with the sample fiber with conductive paint and used as a lead wire.
- the length between the conductive paints was measured to 0.1 mm using a length meter, and the measured length was used as the test length.
- the diameter of the sample fiber was read using a microscopic microscope.
- the resistance of the sample fiber was measured using a resistance meter.
- the volume resistivity was calculated from the following equation.
- S f volume resistivity ( ⁇ ⁇ m)
- R f resistance of sample fiber ( ⁇ )
- L length of sample fiber (m)
- D diameter of sample fiber (m)
- the spun yarn was gripped at a spacing of 300 mm and the pulling speed was 2 O Omm / min. The tenacity was divided by the tex value of the spun yarn to obtain the spun yarn strength (N / teX).
- the measurement was carried out in accordance with the method 1 of the carbon fiber cloth test method, JCFS003-19882. Specifically, measurement was performed on five test pieces of 100 mm x 100 mm using a straight-forward paper micrometer p PM-25 type (manufactured by Mitutoyo Corporation) by gently rotating the spindle. The surface was in parallel contact with the sample surface, and the scale was read when the ratchet made three sounds. The average of the measured values was calculated to two decimal places.
- a fabric sample measuring approximately 0.5 m in height and approximately 0.5 m in width and a pressure gauge of a thickness gauge are parallel. Use a thickness gauge to measure the inside position of about 0.1 Om in the center direction for each of the four sides of the sample, two places on each side (total of eight places per sample). Was measured, and the average of these values was determined.
- a vertical test piece vertical length: 0.22 m, horizontal length: 0.20 m
- a horizontal test piece horizontal length: 0.22 m
- the plate was fixed between the electrodes of the g plate, and after pressurizing the plate with a pressure machine at 4.9 MPa, the resistance of the test specimen in the vertical and horizontal directions was measured using a resistance measuring instrument.
- the volume resistivity of the carbon fiber fabric was calculated by the following equation.
- T volume resistivity ( ⁇ ⁇ m)
- C Electrode terminal spacing (0.20 m) when measuring the resistance of the test piece
- the fiber bundle was spun at a stretch of 12 times and Z (left) at a twist of 130 times Zm to obtain a spun yarn of 70 te X. Then, the two spun yarns were combined with a twisting machine and combined at a S (right) twist of 78 times / m to obtain a spun yarn of 140 te X.
- Example 1 Using the spinning machine of Example 1, instead of spinning at Z (left) with a twist of 130 times at Zm, spinning at Z (left) with a twist of 180 times / HI and twisting with a twisting machine The procedure was performed in the same manner as in Example 1 except that the procedure was not performed. As a result, a spun yarn of 70 tex was obtained.
- Example 2 In a nitrogen atmosphere of Example 2, 100 ° C., the isotropic pitch-based carbon fiber obtained by heat-treating for 1 hour was cut into a fiber length of 20 O mm using a cutter, The procedure was performed in the same manner as in Example 2 except that the fiber length was cut to 18 O mm. As a result, a spun yarn of 70 tex was obtained. When this spun yarn was used, a plain woven fabric having a FAW of 70 gZm 2 and a thickness of 0.15 mm was obtained.
- Example 2 Using the spinning machine, the fiber bundle of Example 2 was spun at Z (left) with a twist of 180 times / m. Instead of spinning at m (left) with a twist of 100 times Zm, The operation was performed in the same manner as in Example 2. As a result, a spun yarn of 70 tex was obtained.
- Example 2 instead of the isotropic pitch-based carbon fiber obtained by heat-treating at 1000 ° C. for 1 hour in the nitrogen atmosphere of Example 2, heat-treating at 1500 ° C. for 1 hour in the nitrogen atmosphere The procedure was performed in the same manner as in Example 2 except that the obtained isotropic pitch-based carbon fiber was used. As a result, a spun yarn of 70 tex was obtained.
- Example 2 In place of the isotropic pitch-based carbon fiber obtained by heat-treating at 1000 ° C. for 1 hour in a nitrogen atmosphere of Example 2, it was obtained by heat-treating at 200 ° C. for 1 hour in a nitrogen atmosphere. The procedure was performed in the same manner as in Example 2 except that isotropic t raw pitch-based carbon fiber was used. As a result, a spun yarn of 70 tex was obtained.
- the fibers were laid out to obtain a fiber bundle of 10 g / m.
- the single fiber bundle was extended 5.1 times with the first drawing machine to obtain a fiber bundle of 1.96 gZm.
- the two fiber bundles are combined and stretched 3.2 times by a second drawing machine to form a single fiber bundle.
- the two fiber bundles are combined by a third drawing machine to 2.0 times.
- a single fiber bundle was obtained.
- the fiber bundle was spun at a draw ratio of 12 times and a twist number of 180 times / m to obtain a spun yarn of 100 tex.
- the spun yarn was further heat-treated at 200 ° C. for 1 hour in a nitrogen atmosphere.
- Example 2 an isotropic pitch-based carbon fiber obtained by heat treatment at 100 ° C. for 1 hour in a nitrogen atmosphere was cut into a fiber length of 200 mm using a cutting machine. The procedure was performed in the same manner as in Example 2, except that the fiber length was cut to 14 O mm. As a result, a spun yarn of 70 te X was obtained.
- Example 7 the PAN-based carbon fiber obtained by heat treatment at 200 ° C. for 1 hour in a nitrogen atmosphere was cut into a fiber length of 20 Omm using a cutting machine, The procedure was performed in the same manner as in Example 7 except that the length was cut to 14 O mm. As a result, a 100-tex spun yarn was obtained.
- Example 1 a fiber bundle of 10 g / m was spun at a draw ratio of 10.5 times using a spinning machine, instead of being spun at a draw ratio of 12 times. Except for combining two spun yarns and combining them with S (right) 1 10 turns / m instead of combining them with S (right) twists of 7 8 turns / m was performed in the same manner as in Example 2. As a result, a spun yarn of 160 tex was obtained.
- Example 2 instead of the isotropic pitch-based carbon fiber obtained by heat-treating at 1000 ° C. for 1 hour in the nitrogen atmosphere of Example 2, heat-treating at 800 ° C. for 1 hour in a nitrogen atmosphere The same procedure was performed as in Example 2 except that the obtained isotropic pitch-based carbon fiber was used. As a result, 7 0 te X spun yarn was obtained.
- a fine carbon fiber bundle containing a carbon fiber longer than the conventional one at an appropriate ratio is spun at an appropriate number of twists to obtain a thin and fine fiber.
- a high-strength carbon fiber spun yarn is obtained, and by weaving the carbon fiber spun yarn, a carbon fiber spun yarn fabric suitable as a gas diffusion (current collector) body for a polymer electrolyte fuel cell is obtained.
- Example 8 pitch 0.359 1.60 50 0 10 70 180
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Woven Fabrics (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04799952A EP1700938A4 (en) | 2003-12-01 | 2004-11-30 | CARBON FIBER FILE AND WOVEN ETOFFE THEREOF |
US10/581,254 US7610743B2 (en) | 2003-12-01 | 2004-11-30 | Carbon fiber spun yarn and woven fabric thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003401982A JP4446721B2 (ja) | 2003-12-01 | 2003-12-01 | 炭素繊維紡績糸およびその織物 |
JP2003-401982 | 2003-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005054554A1 true WO2005054554A1 (ja) | 2005-06-16 |
Family
ID=34649995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/018103 WO2005054554A1 (ja) | 2003-12-01 | 2004-11-30 | 炭素繊維紡績糸およびその織物 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7610743B2 (ja) |
EP (1) | EP1700938A4 (ja) |
JP (1) | JP4446721B2 (ja) |
CN (1) | CN100537866C (ja) |
WO (1) | WO2005054554A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1963039A4 (en) * | 2005-11-16 | 2015-04-29 | Ladama Llc | FIRE-RESISTANT COMPOSITIONS AND METHOD AND DEVICES FOR PRODUCING THEM |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101505955B (zh) * | 2006-08-22 | 2012-04-11 | 株式会社吴羽 | 含有碳纤维的叠层成型体及其制造方法 |
JPWO2010021045A1 (ja) * | 2008-08-21 | 2012-01-26 | 株式会社クレハ | 等方性ピッチ系炭素繊維織物及びその製造方法 |
DE102008039840A1 (de) * | 2008-08-27 | 2010-03-04 | Sgl Carbon Ag | Streckgerissene Carbonfasergarne für eine Heizvorrichtung |
GB2477531B (en) * | 2010-02-05 | 2015-02-18 | Univ Leeds | Carbon fibre yarn and method for the production thereof |
CN102041597B (zh) * | 2010-11-16 | 2012-08-08 | 江苏澳盛复合材料科技有限公司 | 一种碳纤维布及其在汽车耐摩擦部件上的应用 |
CN102560816A (zh) * | 2011-11-18 | 2012-07-11 | 濮阳市德发特种纺织物有限公司 | 防静电吸湿排汗面料 |
JP6473695B2 (ja) * | 2013-12-16 | 2019-02-20 | エーザイ・アール・アンド・ディー・マネジメント株式会社 | 血管再生用移植材料 |
WO2018176067A2 (en) * | 2017-08-07 | 2018-09-27 | Zoltek Corporation | Polyvinyl alcohol-sized fillers for reinforcing plastics |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002042534A1 (fr) | 2000-11-24 | 2002-05-30 | Toho Tenax Co., Ltd. | Feuille de fibres de carbone et son procede de production |
JP2003064539A (ja) * | 2001-08-24 | 2003-03-05 | Toho Tenax Co Ltd | 炭素繊維織物、及びその製造方法 |
JP2003109616A (ja) | 2001-07-27 | 2003-04-11 | Toho Tenax Co Ltd | 高分子電解質型燃料電池電極材用炭素繊維紡績糸織物構造体、及びその製造方法 |
JP2003221753A (ja) * | 2002-01-25 | 2003-08-08 | Toho Tenax Co Ltd | 炭素繊維紡績糸織物、及びその製造方法 |
JP2003227053A (ja) * | 2002-02-01 | 2003-08-15 | Toho Tenax Co Ltd | ポリアクリロニトリル系炭素繊維紡績糸織物、及びその製造方法 |
JP2003227054A (ja) * | 2002-02-01 | 2003-08-15 | Toho Tenax Co Ltd | ポリアクリロニトリル系酸化繊維紡績糸織物、炭素繊維紡績糸織物、及び炭素繊維紡績糸織物の製造方法 |
JP2003239157A (ja) * | 2002-02-15 | 2003-08-27 | Toho Tenax Co Ltd | ポリアクリロニトリル系炭素繊維紡績糸織物、炭素繊維紡績糸織物ロール、及び炭素繊維紡績糸織物の製造方法 |
JP2003286631A (ja) * | 2002-03-28 | 2003-10-10 | Toho Tenax Co Ltd | 高嵩密度耐炎繊維紡績糸織物及び炭素繊維紡績糸織物、並びにそれらの製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3145267A1 (de) * | 1981-11-14 | 1983-05-19 | Hasso von 4000 Düsseldorf Blücher | Aktivkohle-stapelfasern enthaltendes mischgarn und daraus hergestelltes gewebe |
US4913889A (en) * | 1983-03-09 | 1990-04-03 | Kashima Oil Company | High strength high modulus carbon fibers |
JP2801264B2 (ja) * | 1989-05-24 | 1998-09-21 | 帝人株式会社 | 高級綿様風合を有する合成繊維糸条およびその製造方法 |
JP4502636B2 (ja) * | 2003-12-17 | 2010-07-14 | 株式会社クレハ | ピッチ系炭素繊維スライバー及び紡績糸の製造方法 |
EP1854911A1 (en) * | 2005-02-22 | 2007-11-14 | Kureha Corporation | Hybrid carbon fiber spun yarn and hybrid carbon fiber spun yarn fabric using same |
-
2003
- 2003-12-01 JP JP2003401982A patent/JP4446721B2/ja not_active Expired - Fee Related
-
2004
- 2004-11-30 WO PCT/JP2004/018103 patent/WO2005054554A1/ja not_active Application Discontinuation
- 2004-11-30 US US10/581,254 patent/US7610743B2/en not_active Expired - Fee Related
- 2004-11-30 CN CNB2004800356805A patent/CN100537866C/zh not_active Expired - Fee Related
- 2004-11-30 EP EP04799952A patent/EP1700938A4/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002042534A1 (fr) | 2000-11-24 | 2002-05-30 | Toho Tenax Co., Ltd. | Feuille de fibres de carbone et son procede de production |
EP1273685A1 (en) | 2000-11-24 | 2003-01-08 | Toho Tenax Co., Ltd. | Carbon fiber sheet and method for producing the same |
JP2003109616A (ja) | 2001-07-27 | 2003-04-11 | Toho Tenax Co Ltd | 高分子電解質型燃料電池電極材用炭素繊維紡績糸織物構造体、及びその製造方法 |
JP2003064539A (ja) * | 2001-08-24 | 2003-03-05 | Toho Tenax Co Ltd | 炭素繊維織物、及びその製造方法 |
JP2003221753A (ja) * | 2002-01-25 | 2003-08-08 | Toho Tenax Co Ltd | 炭素繊維紡績糸織物、及びその製造方法 |
JP2003227053A (ja) * | 2002-02-01 | 2003-08-15 | Toho Tenax Co Ltd | ポリアクリロニトリル系炭素繊維紡績糸織物、及びその製造方法 |
JP2003227054A (ja) * | 2002-02-01 | 2003-08-15 | Toho Tenax Co Ltd | ポリアクリロニトリル系酸化繊維紡績糸織物、炭素繊維紡績糸織物、及び炭素繊維紡績糸織物の製造方法 |
JP2003239157A (ja) * | 2002-02-15 | 2003-08-27 | Toho Tenax Co Ltd | ポリアクリロニトリル系炭素繊維紡績糸織物、炭素繊維紡績糸織物ロール、及び炭素繊維紡績糸織物の製造方法 |
JP2003286631A (ja) * | 2002-03-28 | 2003-10-10 | Toho Tenax Co Ltd | 高嵩密度耐炎繊維紡績糸織物及び炭素繊維紡績糸織物、並びにそれらの製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1700938A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1963039A4 (en) * | 2005-11-16 | 2015-04-29 | Ladama Llc | FIRE-RESISTANT COMPOSITIONS AND METHOD AND DEVICES FOR PRODUCING THEM |
Also Published As
Publication number | Publication date |
---|---|
US20080307765A1 (en) | 2008-12-18 |
CN100537866C (zh) | 2009-09-09 |
JP2005163208A (ja) | 2005-06-23 |
US7610743B2 (en) | 2009-11-03 |
JP4446721B2 (ja) | 2010-04-07 |
CN1890416A (zh) | 2007-01-03 |
EP1700938A1 (en) | 2006-09-13 |
EP1700938A4 (en) | 2011-03-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4822552B2 (ja) | ハイブリッド炭素繊維紡績糸及びそれを用いたハイブリッド炭素繊維紡績糸織物 | |
US20050260909A1 (en) | Carbonic fiber woven fabric, carbonic fiber woven fabric roll, gas diffusion layer material for solid polymer fuel cell, method for producing carbonic fiber woven fabric and method for producing gas diffusion layer material for solid polymer fuel cell | |
WO2005054554A1 (ja) | 炭素繊維紡績糸およびその織物 | |
JP4329296B2 (ja) | 導電性炭素質繊維シート及び固体高分子型燃料電池 | |
JPH07331536A (ja) | ピッチ系炭素繊維 | |
JP2009197365A (ja) | 炭素繊維前駆体繊維の製造方法、及び、炭素繊維の製造方法 | |
Yan et al. | Structures and properties of polyacrylonitrile/graphene composite nanofiber yarns prepared by multi-needle electrospinning device with an auxiliary electrode | |
JP2004003043A (ja) | 耐炎化繊維材料、炭素繊維材料、黒鉛繊維材料及びそれらの製造方法 | |
JP3442061B2 (ja) | 扁平炭素繊維紡績糸織物構造材 | |
JP4283010B2 (ja) | 導電性炭素質繊維織布及びこれを用いた固体高分子型燃料電池 | |
JP3890770B2 (ja) | 炭素繊維束、およびその製造方法 | |
JPH026628A (ja) | ピッチ糸炭素繊維の製造法 | |
JP4002426B2 (ja) | 高分子電解質型燃料電池電極材用炭素繊維紡績糸織物構造体、及びその製造方法 | |
JP2003045443A (ja) | 高分子電解質型燃料電池電極材用炭素繊維不織布、及びその製造方法 | |
JP2003064539A (ja) | 炭素繊維織物、及びその製造方法 | |
JP4190768B2 (ja) | ポリアクリロニトリル系炭素繊維紡績糸織物、及びその製造方法 | |
JP3934974B2 (ja) | 高嵩密度耐炎繊維紡績糸織物及び炭素繊維紡績糸織物、並びにそれらの製造方法 | |
JP2000096353A (ja) | 炭素繊維の製造法 | |
JP4333106B2 (ja) | 炭素質繊維織布の製造方法 | |
JP4113018B2 (ja) | ポリアクリロニトリル系炭素繊維紡績糸織物 | |
JPH04272231A (ja) | 黒鉛化繊維の製造方法 | |
JP2007039843A (ja) | 熱可塑性繊維混合酸化繊維紡績糸並びに酸化繊維織物及び炭素繊維織物の製造方法 | |
JP2003166168A (ja) | 酸化繊維構造体、炭素繊維構造体、及びこれらの製造方法 | |
JP2023117438A (ja) | 熱処理耐炎繊維、熱処理耐炎繊維シート及びそれらの製造方法、並びに黒鉛繊維及び黒鉛繊維シートの製造方法 | |
JP3525159B2 (ja) | リン酸型燃料電池の多孔質電極基板用炭素繊維 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480035680.5 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004799952 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10581254 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
WWP | Wipo information: published in national office |
Ref document number: 2004799952 Country of ref document: EP |