Dispersión que contiene polímero ignífugo, fibra ignífuga y fibra de carbono

    公开(公告)号:ES2390369T3

    公开(公告)日:2012-11-12

    申请号:ES07859859

    申请日:2007-12-19

    Abstract: Una dispersión que contiene un polímero ignífugo, que comprende un disolvente orgánico y un polímero ignífugo dispersado en el mismo, en la que el polímero ignífugo se obtiene por tratamiento térmico de una dispersión en la que un polímero de acrilonitrilo se dispersa en un disolvente orgánico polar, en presencia de al menos un ácido, un anhídrido ácido o un cloruro ácido, y en la que una resistencia a la tracción en agua por área unitaria en sección transversal del polímero ignífugo es 1,0 MPa o más y 6,5 MPa o menos, medida para una película obtenida estirando la dispersión que contiene el polímero ignífugo, coagulando la película en agua a entre 25ºC y 30ºC, cortando la película hasta un grosor de 100 Μm a 150 Μm, sujetando la película de manera que el sitio de longitud de muestra es de 10 mm, midiendo la resistencia a la tracción de la película en agua a una velocidad de 20 mm/min usando una máquina de prueba de tracción y dividiendo el valor de la resistencia a la tracción por un área en sección transversal de un plano perpendicular a la dirección de la prueba de tracción.

    FLAME-RESISTANT FIBER, CARBON FIBER, AND PROCESSES FOR THE PRODUCTION OF BOTH
    7.
    发明公开
    FLAME-RESISTANT FIBER, CARBON FIBER, AND PROCESSES FOR THE PRODUCTION OF BOTH 有权
    可燃性纤维,碳和方法对于这两个

    公开(公告)号:EP1921183A4

    公开(公告)日:2009-12-09

    申请号:EP06782320

    申请日:2006-08-04

    Abstract: In a flame resistant fiber assembly obtainable by fiber forming a flame resistant polymer, a flame resistant fiber of a higher performance is obtained by improving fiber forming ability. A carbon fiber of a high performance is obtained by carbonizing the flame resistant fiber. At obtaining a flame resistant fiber by subjecting a solution containing a flame resistant polymer modified by an amine-based compound to a wet spinning or a semi-dry spinning in a coagulation bath in such a way that a degree of swelling of a coagulated yarn at the outlet of the coagulation bath is 100 to 1000 wt% and then, in a bath, subjecting to a drawing and/or water washing and to a drying under tension, the flame resistant fiber is produced by controlling temperature of the drawing bath/water washing bath, drying temperature or tension in such a way that the obtained fiber would not crystallize. And, a carbon fiber is produced by carbonizing said flame resistant fiber.

    CARBON FIBER AND ITS PRODUCTION
    9.
    发明专利

    公开(公告)号:JPH11217734A

    公开(公告)日:1999-08-10

    申请号:JP32945698

    申请日:1998-11-19

    Abstract: PROBLEM TO BE SOLVED: To obtain carbon fibers having excellent rigidity, bending strength and adhesiveness to a resin without inducing inflation of a cost and lowering of processability and suitable for a reinforced composite material, etc., by making an acrylic precursor to be fire resistant and carbonizing under a specific condition. SOLUTION: This carbon fiber has a tensile Young's modulus YM (GPa) and a nitrogen content NC(%) satisfying formulae I and II and crystal orientation π002(%) and crystal size Lc (Å) both calculated from X-ray diffraction satisfying formulae III and IV, 1.01-1.25 a surface area ratio and 20-40 spreading index, and is obtained by making an acrylic precursor having fine particles comprising an organic-based compound or a silicon-based compound on the fiber surface to be fire resistant at 0.85-1.0 draw ratio so as to have 0.05-5 % solubility in formic acid and previously carbonizing in an inert atmosphere at 300-800 deg.C and 1.0-1.5 draw ratio, and further carbonizing in an inert atmosphere at 800-1,600 deg.C.

Patent Agency Ranking