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    • 1. 发明专利
    • Porous conductive sheet, manufacturing method therefor, electrode material, and fuel cell
    • 多孔导电片,其制造方法,电极材料和燃料电池
    • JP2014103030A
    • 2014-06-05
    • JP2012255249
    • 2012-11-21
    • Toho Tenax Co Ltd東邦テナックス株式会社
    • KUROKAWA KAZUMAAKAMATSU TETSUYA
    • H01M4/96C01B31/04H01M8/10
    • Y02P70/56
    • PROBLEM TO BE SOLVED: To provide a porous conductive sheet suitable for an electrode material having conductivity and gas permeability, and to provide a manufacturing method therefor.SOLUTION: The porous conductive sheet composed of organic fibers and a conductive material contains, as the conductive material, at least conductive particles having a particle size of less than 1 μm, conductive particles having a particle size of 5-100 μm, and carbon fibers. Preferably, fluororesin is fused to the fiber surface of organic fibers of the porous conductive sheet. The porous conductive sheet can be obtained by a manufacturing method of a porous conductive sheet for preparing slurry containing conductive particles having a particle size of less than 1 μm, conductive particles having a particle size of 5-100 μm, carbon fibers and organic fibers, and then papermaking the slurry.
    • 要解决的问题:提供适合于具有导电性和透气性的电极材料的多孔导电片,并提供其制造方法。解决方案:由有机纤维和导电材料构成的多孔导电片含有作为导电材料 至少具有粒径小于1μm的导电颗粒,粒径为5-100μm的导电颗粒和碳纤维。 优选地,氟树脂与多孔导电片的有机纤维的纤维表面熔合。 多孔导电片可以通过制造含有粒径小于1μm的导电粒子的浆料的多孔导电片,粒径为5〜100μm的导电粒子,碳纤维和有机纤维的制造方法, 然后造纸浆料。
    • 2. 发明专利
    • Method of manufacturing carbon fiber
    • 制造碳纤维的方法
    • JP2014101605A
    • 2014-06-05
    • JP2012255250
    • 2012-11-21
    • Toho Tenax Co Ltd東邦テナックス株式会社
    • MAEDA HIDEAKIAKIYAMA FUMIO
    • D06M11/00D01F9/12D06M11/05D06M11/34
    • PROBLEM TO BE SOLVED: To provide a method of manufacturing a carbon fiber, conducting a surface treatment of the carbon fiber efficiently and safely, at low cost and without applying a burden on the environment.SOLUTION: The method of manufacturing a carbon fiber is a manufacturing method of the carbon fiber including heat treating the carbon fiber having an untreated surface at 200 to 600°C under a super heated steam atmosphere containing an oxygen concentration of 1 to 1000 ppm. The oxidizing gas is preferably oxygen. The atmosphere used in the invention may contain an inactive gas of 0 to 80 vol% other than the super heated steam. Preferably it is heat treated under an atmosphere containing 1 to 1000 ppm of oxidizing gas and having a percentage of super heated steam of 20 to 99.9 vol%.
    • 要解决的问题:提供一种制造碳纤维的方法,以低成本有效且安全地进行碳纤维的表面处理,而不会对环境造成负担。解决方案:制造碳纤维的方法是 该碳纤维的制造方法包括在含有氧浓度为1〜1000ppm的超加热蒸汽气氛下,在200〜600℃下热处理具有未处理面的碳纤维。 氧化气体优选为氧气。 本发明中使用的气氛可以含有超过加热蒸汽以外的0〜80体积%的惰性气体。 优选在含有1〜1000ppm的氧化气体的气氛下进行热处理,并具有20〜99.9vol%的超级加热蒸汽的百分比。
    • 3. 发明专利
    • Porous conductive sheet, manufacturing method thereof, electrode material, and fuel battery
    • 多孔导电片,其制造方法,电极材料和燃料电池
    • JP2013218951A
    • 2013-10-24
    • JP2012090176
    • 2012-04-11
    • Toho Tenax Co Ltd東邦テナックス株式会社
    • KUROKAWA KAZUMAAKAMATSU TETSUYA
    • H01M4/96C01B31/04H01M4/88H01M8/10
    • Y02P70/56
    • PROBLEM TO BE SOLVED: To provide a porous conductive sheet suitable for an electrode material having electrical conductivity and gas permeability, and its manufacturing method.SOLUTION: The porous conductive sheet of the invention, which solves the above problem, comprises: aromatic polyamide pulp; and a carbon-based conductive material. The carbon-based conductive material includes, at least, carbon fibers having a fiber length of 1 mm or longer, carbon-based short fibers having a fiber length shorter than 1 mm, and carbon-based conductive particles. The porous conductive sheet preferably has a fluorine resin bonded by fusion to surfaces of fibers of the aromatic polyamide pulp. The porous conductive sheet can be produced by a method for manufacturing a porous conductive sheet which comprises a process in which a slurry including carbon fibers having a fiber length of 1 mm or longer and carbon-based short fibers, carbon-based conductive particles and aromatic polyamide pulp is prepared, and the slurry is used for paper making.
    • 要解决的问题:提供适合于具有导电性和透气性的电极材料的多孔导电片及其制造方法。解决上述问题的本发明的多孔导电片包括:芳香族聚酰胺纸浆; 和碳基导电材料。 碳基导电材料至少包括纤维长度为1mm或更长的碳纤维,纤维长度短于1mm的碳基短纤维和碳基导电颗粒。 多孔导电片优选具有通过与芳族聚酰胺纸浆的纤维表面融合而结合的氟树脂。 多孔导电片可以通过多孔导电片的制造方法制造,该多孔导电片的制造方法包括:将包含纤维长度为1mm以上的碳纤维的浆料和碳类短纤维,碳系导电性粒子,芳香族 制备聚酰胺纸浆,将浆料用于造纸。
    • 5. 发明专利
    • Method for producing carbon fiber bundle for filament winding
    • 生产用于纤维缠绕的碳纤维布的方法
    • JP2011252264A
    • 2011-12-15
    • JP2011168688
    • 2011-08-01
    • Toho Tenax Co Ltd東邦テナックス株式会社
    • SAKAMOTO HAJIMESUGURO MITSUONISHIMURA ISAOUMEMOTO SADATAKA
    • D06M15/55C08J5/06C08K9/00C08L101/00D01F9/14D06M101/40
    • PROBLEM TO BE SOLVED: To provide a carbon fiber bundle for filament winding, with which the strength of carbon fibers used therein is sufficiently reflected in the strength of a filament winding molded article obtained therefrom.SOLUTION: A method for producing a sized carbon fiber bundle for filament winding includes continuously immersing an unsized carbon fiber bundle in a sizing bath to impregnate the carbon fiber bundle with a sizing agent and then bringing the carbon fiber bundle impregnated with the sizing agent into contact with a heat roller having a surface temperature of 120-140°C for 15-30 seconds, thereby providing a sized carbon fiber bundle for filament winding, which has a flat cross-sectional shape, a cross-sectional flatness (width/thickness) of the carbon fiber bundle of 40-90 and a drape value of 50-100 mm, and which is substantially untwisted.
    • 要解决的问题:提供一种用于纤维缠绕的碳纤维束,其中使用的碳纤维的强度以其由其获得的长丝缠绕模制品的强度充分反映。 解决方案:一种用于生产用于长丝缠绕的尺寸的碳纤维束的方法,包括将未固化的碳纤维束连续浸渍在施胶浴中,用施胶剂浸渍碳纤维束,然后使浸渍有上浆料的碳纤维束 试剂与表面温度为120-140℃的热辊接触15-30秒,从而提供尺寸为纤维缠绕的碳纤维束,其具有扁平的横截面形状,横截面平坦度(宽度 /厚度)为40-90的碳纤维束和悬垂值为50-100mm,并且其基本上未扭曲。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • Manufacturing method of precursor
    • 前驱体的制造方法
    • JP2011219877A
    • 2011-11-04
    • JP2010086609
    • 2010-04-03
    • Toho Tenax Co Ltd東邦テナックス株式会社
    • YOKOYAMA HIROKO
    • D01F6/18D01F9/22
    • PROBLEM TO BE SOLVED: To provide a manufacturing method of a precursor for a PAN carbon fiber, capable of improving quality of the carbon fiber.SOLUTION: A manufacturing method of a precursor (carbon fiber precursor) comprises a step of manufacturing a semi-processed strand from a PAN polymer through spinning, coagulating, and water-washing, and subsequent steps of drying and steam-stretching the semi-processed strand. The semi-processed strand has a loop elongation percentage in the range of 40 to 50% and a loop breaking strength in the range of 350 to 450 Mpa. The resultant precursor is less fluffed and suitable for preparing a composite or a prepreg with ease of handling.
    • 解决的问题:提供能够提高碳纤维质量的PAN碳纤维前体的制造方法。 解决方案:前体(碳纤维前体)的制造方法包括通过纺丝,凝固和水洗从PAN聚合物制造半加工线的步骤,随后的干燥和蒸汽拉伸步骤 半加工线。 半加工股线的回线延伸率在40〜50%的范围内,环断裂强度在350〜450MPa的范围内。 所得到的前体较少起毛,并且适于制备易于处理的复合材料或预浸料。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Surface-treating apparatus for carbon fiber strand
    • 碳纤维条的表面处理装置
    • JP2011174189A
    • 2011-09-08
    • JP2010036973
    • 2010-02-23
    • Toho Tenax Co Ltd東邦テナックス株式会社
    • KAKISAKA KEIJIRO
    • D06M10/00
    • PROBLEM TO BE SOLVED: To provide a surface-treating apparatus for carbon fiber strands, which does substantially exhaust an harmful gas generated in the surface treatment of the carbon fibers in a working environment.
      SOLUTION: An electrolytic tank constituting the surface treating apparatus of the carbon fiber strands is received in a housing. A carbon fiber strand-introducing port and a carbon fiber strand-discharging port are disposed in the housing. A gas-exhausting port is disposed at a position lower than the upper end of the electrolytic tank in the housing. A harmful gas in the housing is exhausted and recovered from the gas-exhausting port with a fan.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种碳纤维束的表面处理装置,其在工作环境中基本上排出在碳纤维的表面处理中产生的有害气体。 构成碳纤维束的表面处理装置的电解槽被容纳在壳体内。 碳纤维束引入口和碳纤维股线排出口设置在壳体中。 气体排出口设置在比壳体中的电解槽的上端低的位置。 外壳中的有害气体用排风扇排出并从排气口回收。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Carbon fiber sheet, and method for producing the same
    • 碳纤维板及其制造方法
    • JP2011153384A
    • 2011-08-11
    • JP2010014013
    • 2010-01-26
    • Toho Tenax Co Ltd東邦テナックス株式会社
    • TAKAMI YUSUKE
    • D01F9/12C01B31/00D04H1/4242D21H13/50D21H15/02H01M4/86H01M4/88H01M4/96H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a carbon fiber sheet and a method for producing the carbon fiber sheet in and by which the contact resistance between a separator and the carbon fiber sheet dose not increase while the contact surface area between an electrolyte layer and the carbon fiber sheet is increased. SOLUTION: Many fine pores are formed in fibers constituting a surface (hereafter referred to as a surface A) on the catalyst electrode layer-contacting side of the carbon fiber sheet to increase the surface area of the carbon fibers, thus increasing the contact area of the carbon fiber sheet with the catalyst electrode layer. Simultaneously, fine pores are not formed on a separator-contacting surface, namely, a surface (hereafter referred to as a surface B) on the back side of the surface A to inhibit the increase in the contact resistance of the carbon fiber sheet with the separator, thereby improving the performance of a fuel cell. COPYRIGHT: (C)2011,JPO&INPIT
    • 待解决的问题:提供一种碳纤维片材和碳纤维片材的制造方法,其中隔板和碳纤维片材之间的接触电阻不增加,同时电解质层的接触表面积 碳纤维片增加。 解决方案:在碳纤维片的催化剂电极层接触侧的纤维中形成许多细孔,以增加碳纤维的表面积,从而增加碳纤维的表面积 碳纤维板与催化剂电极层的接触面积。 同时,在隔板接触表面即表面A的背侧的表面(以下称为表面B)上不形成细孔,以抑制碳纤维片的接触电阻增加 分离器,从而提高燃料电池的性能。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • Method for producing carbon fiber
    • 生产碳纤维的方法
    • JP2011047063A
    • 2011-03-10
    • JP2009194924
    • 2009-08-26
    • Toho Tenax Co Ltd東邦テナックス株式会社
    • SHIMADA TAKESHIYOSHIKAWA HIDEKAZUKIMURA HIROSHI
    • D06M15/55D06M15/70D06M101/40
    • PROBLEM TO BE SOLVED: To provide a carbon fiber that contributes to improvement in interlaminar fracture toughness of composite material.
      SOLUTION: The method for producing a carbon fiber includes, when a carbon fiber strand to which 0.3-5.0 wt.%, based on the fiber weight, of a sizing agent comprising an epoxy resin as a main component is attached, performing a dry heat-treatment at 200-250°C until the epoxy equivalent of the sizing agent after the treatment is 2.0-4.0 times as much as the epoxy equivalent of the sizing agent before the attachment. A carbon fiber for a composite material, having excellent composite performance, especially excellent interlaminar fracture toughness to be an index of interlayer brittleness, is obtained.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供有助于提高复合材料的层间断裂韧性的碳纤维。 解决方案:碳纤维的制造方法包括:当以包含环氧树脂为主要成分的上浆剂为基础,以纤维重量计0.3-5.0重量%的碳纤维束时, 在200-250℃下进行干热处理,直到处理后的施胶剂的环氧当量为附着前施胶剂的环氧当量的2.0-4.0倍。 可以得到复合材料的复合材料用碳纤维,特别是优异的层间脆性指数的层间断裂韧性。 版权所有(C)2011,JPO&INPIT