METODO PARA PRODUCIR FIBRAS DE CARBONO REVESTIDAS CON AGENTE DE APRESTO, Y FIBRAS DE CARBONO REVESTIDAS CON AGENTE DE APRESTO.

    公开(公告)号:MX2012013917A

    公开(公告)日:2013-02-21

    申请号:MX2012013917

    申请日:2011-06-24

    Abstract: Descrito está un método para producir fibras de carbono que muestran excelente adhesión a una resma matriz y tienen excelente procesabilidad. Específicamente descrito está un método para producir fibras de carbono revestidas con apresto, donde al menos un tipo de apresto que se selecciona del grupo consistente de aprestos (a), (b) y (c) descritos a continuación se usa para el revestimiento, en cada uno de los aprestos se usa un compuesto epoxi funcional bi- o mayor (A1) y/o un compuesto epoxi (A2) como un componente (A), y tal compuesto epoxi (A2) que tiene un grupo epoxi funcional mono- o mayor y al menos un grupo funcional que se selecciona de entre un grupo hidroxilo, un grupo amida, un grupo imida, un grupo uretano, un grupo urea, un grupo sulfonil y un grupo sulfo. El método para producir unas fibras de carbono revestidas con apresto se caracteriza porque el apresto se aplica a las fibras de carbono y el resultado se sujeta a un tratamiento por calor dentro del rango de temperatura de 160 15 260° C por 30-600 segundos. (a) Un apresto que se obtiene al mezclar al menos 0.1-25 partes en masa de un compuesto amina terciario y/o sal amino terciaria (B1) que tiene un peso molecular de 100 g/mol o más por 100 partes en masa del componente (A), tal compuesto amina terciario y/o sal amino terciaria (B1) se usa como un componente (B). (b) Un apresto que se obtiene al mezclar al menos 0.1-25 partes en masa de una sal de amonio cuaternaria (B2) que tiene una porción catiónica representada por la fórmula general (I) o (II) por 100 partes en masa del componente (A), tal sal de amonio cuaternaria (B2) se usa como un componente (B). (En las fórmulas, R1-R5, cada una representa un grupo hidrocarburo con 1-22 átomos de carbono, un grupo que contiene un hidrocarburo con 1-22 átomos de carbono y una estructura éter, un grupo que contiene un hidrocarburo con 1-22 átomos de carbono y una estructura éster, o un grupo que contiene un hidrocarburo con 1-22 átomos de carbono y un grupo hidroxilo; y R6 y R7 cada uno representa un átomo de hidrógeno, un grupo hidrocarburo con 1-8 átomos de carbono, un grupo que contiene un hidrocarburo con 1-8 átomos de carbono y una estructura éter, o un grupo que contiene un hidrocarburo con 1-8 átomos de carbono y una estructura éster.) (c) Un apresto que se obtiene al mezclar al menos 0.1-25 partes en masa de una sal de fosfonio cuaternaria y/o compuesto fosfina (B3) por 100 partes en masa del componente (A), tal sal de fosfonio cuaternaria y/o compuesto fosfina (B3) se usa como un componente (B).

    FIBRA PRECURSORA DE FIBRA DE CARBONO, FIBRA DE CARBONO, Y PROCESOS PARA LA PRODUCCION DE LA MISMA.

    公开(公告)号:MX2010010887A

    公开(公告)日:2010-11-26

    申请号:MX2010010887

    申请日:2009-04-10

    Abstract: Un objeto de la presente invención es proporcionar es para suministrar una fibra precursora para una fibra de carbono de alto grado la cual es menos probable que ocasione distorsión sin deteriorar la productividad. El precursor de fibra de carbono tiene un peso molecular promedio en peso, M,(F), de 200,000 hasta 700,000 y un grado de polidispersión, Mz(F)/Mw(F) (Mz(F) que indica el peso molecular promedio Z de la fibra, de 2 a 5. Asimismo, un proceso para producir el precursor de fibra de carbono de acuerdo con la presente invención proporciona un proceso para producir la fibra precursora de fibra de carbono. Además, un objeto de la presente invención es producir una fibra de carbono de alto grado y alta calidad en tanto que suprime la distorsión y la ruptura de fibra incluso bajo condiciones de oxidación-carbonización que incluyen una relación de alta tensión o alto estiramiento sin deteriorar la productividad. El proceso para producir la fibra de carbono de acuerdo con la presente invención es un proceso para producir una fibra de carbono utilizando la fibra precursora de fibra de carbono. Además, la fibra de carbono de acuerdo con la presente invención es una fibra de carbono en la cual un tamaño de cristalito y parámetros se refieren a una superficie de fibra de carbono, los parámetros determinados por medio de espectroscopía de Raman satisfacen una relación específica.

    CARBON-FIBER PRECURSOR FIBER, CARBON FIBER, AND PROCESSES FOR PRODUCING THESE

    公开(公告)号:CA2711285A1

    公开(公告)日:2009-10-15

    申请号:CA2711285

    申请日:2009-04-10

    Abstract: Precursor fibers for high-grade carbon fibers reduced in fluffing are provided without impairing productivity. The carbon-fiber precursor fibers have a weight-average molecular weight, Mw(F), of 200,000 to 700,000 and a polydispersity coefficient, Mz(F)/Mw(F) (Mz(F) indicates the z-average molecular weight of the fibers), of 2 to 5. Also provided is a process for producing the carbon-fiber precursor fibers. Furthermore provided is a process for producing carbon fibers from the carbon-fiber precursor fibers. In this process, fluffing and fiber breakage are inhibited even under burning conditions including a high tension or high stretch ratio to produce high-grade/high-quality carbon fibers without impairing productivity. Still further provided are carbon fibers which have a crystallite size and a parameter concerning the surface of the carbon fibers and determined by Raman spectroscopy, the crystallite size and the parameter satisfying a specific relationship.

    METHOD FOR PRODUCING SIZING AGENT-COATED CARBON FIBERS, AND SIZING AGENT-COATED CARBON FIBERS

    公开(公告)号:CA2797407A1

    公开(公告)日:2012-01-05

    申请号:CA2797407

    申请日:2011-06-24

    Abstract: Disclosed is a method for producing carbon fibers which exhibit excellent adhesion to a matrix resin and have excellent high-order processability. Specifically disclosed is a method for producing a sizing agent-coated carbon fibers, wherein at least one kind of sizing agent that is selected from the group consisting of sizing agents (a), (b) and (c) described below is used for coating, in each of said sizing agents a bi- or higher functional epoxy compound (A1) and/or an epoxy compound (A2) being used as a component (A), and said epoxy compound (A2) having a mono- or higher functional epoxy group and at least one functional group that is selected from among a hydroxyl group, an amide group, an imide group, a urethane group, a urea group, a sulfonyl group and a sulfo group. The method for producing a sizing agent-coated carbon fibers is characterized in that the sizing agent is applied to carbon fibers and the resulting is subjected to a heat treatment within the temperature range of 160-260°C for 30-600 seconds. (a) A sizing agent which is obtained by blending at least 0.1-25 parts by mass of a tertiary amine compound and/or tertiary amine salt (B1) having a molecular weight of 100 g/mol or more per 100 parts by mass of the component (A), said tertiary amine compound and/or tertiary amine salt (B1) being used as a component (B). (b) A sizing agent which is obtained by blending at least 0.1-25 parts by mass of a quaternary ammonium salt (B2) having a cationic moiety represented by general formula (I) or (II) per 100 parts by mass of the component (A), said quaternary ammonium salt (B2) being used as a component (B). (In the formulae, R1-R5 each represents a hydrocarbon group having 1-22 carbon atoms, a group that contains a hydrocarbon having 1-22 carbon atoms and an ether structure, a group that contains a hydrocarbon having 1-22 carbon atoms and an ester structure, or a group that contains a hydrocarbon having 1-22 carbon atoms and a hydroxyl group; and R6 and R7 each represents a hydrogen atom, a hydrocarbon group having 1-8 carbon atoms, a group that contains a hydrocarbon having 1-8 carbon atoms and an ether structure, or a group that contains a hydrocarbon having 1-8 carbon atoms and an ester structure.) (c) A sizing agent which is obtained by blending at least 0.1-25 parts by mass of a quaternary phosphonium salt and/or phosphine compound (B3) per 100 parts by mass of the component (A), said quaternary phosphonium salt and/or phosphine compound (B3) being used as a component (B).

    17.
    发明专利
    未知

    公开(公告)号:DE69726202T2

    公开(公告)日:2004-04-22

    申请号:DE69726202

    申请日:1997-12-04

    Abstract: By using carbon fibers having a fineness of 25,000 deniers or more, the present invention provides a carbon fiber package including a cheese winding package or a coreless package in which an outside diameter of the package, a diameter of a bobbin or an inside diameter of the package, and a winding width are regulated in the specific ranges, a square-end type package in which a yarn width per fineness, wind angles at the start of winding and at the end of winding, and shifting of the yarn are regulated in the specific ranges, and a carbon fiber packed member in which an average bulk density is regulated in a specific range. Those carbon fiber packages and the carbon fiber packed member solve troubles and inconveniences during use, and also packages which have a high winding density and which do not break easily can be obtained.

    18.
    发明专利
    未知

    公开(公告)号:DE69726202D1

    公开(公告)日:2003-12-18

    申请号:DE69726202

    申请日:1997-12-04

    Abstract: By using carbon fibers having a fineness of 25,000 deniers or more, the present invention provides a carbon fiber package including a cheese winding package or a coreless package in which an outside diameter of the package, a diameter of a bobbin or an inside diameter of the package, and a winding width are regulated in the specific ranges, a square-end type package in which a yarn width per fineness, wind angles at the start of winding and at the end of winding, and shifting of the yarn are regulated in the specific ranges, and a carbon fiber packed member in which an average bulk density is regulated in a specific range. Those carbon fiber packages and the carbon fiber packed member solve troubles and inconveniences during use, and also packages which have a high winding density and which do not break easily can be obtained.

    PRECURSOR FIBER BUNDLE FOR PRODUCTION OF ON CARBON FIBER BUNDLE, A PROCESS FOR PRODUCING THEREOF, A CARBON FIBER BUNDLE AND A PROCESS FOR PRODUCING THEREOF

    公开(公告)号:HU9701651A2

    公开(公告)日:1999-06-28

    申请号:HU9701651

    申请日:1997-10-14

    Abstract: This invention relates to a precursor fiber bundle for production of a carbon fiber bundle, a process for producing the precursor fiber bundle, a carbon fiber bundle produced with the precursor fiber bundle, and a process for producing the carbon fiber bundle. A percursor fiber bundle according to the invention has a fineness being in the range of from 300,000 denier to 1,500,000 denier and has a potential dividability to sub-tows each of which has a fineness being in the range of from 50,000 denier to 250,000 denier. The precursor fiber bundle is obtained by dividing a multifilament made of an acrylic copolymer spun from a spinnerette into a plurality of sub-tows, drawing the sub-tows in this state, and after that converging the sub-tows into one tow with overlapping adjacent sub-tows at a side edge portion thereof. The converging is practiced typically by passing the overlapped sub-tows through a crimping apparatus. A carbon fiber bundle according to the invention is produced by dividing the precursor fiber bundle into the sub-tows and after that treating the sub-tows by passing thereof through stabilizing and carbonizing processes.

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