Molding Material for Injection Molding, Extrusion Molding or Pultrusion Molding, Carbon-Fiber-Reinforced Thermoplastic Resin Pellet, Molding Product, Method for Producing Injection Molded Product, and Injection Molded Product

摘要

A molding material for injection molding, extrusion molding or pultrusion molding, which contains carbon fibers having a fiber length of 2 mm or more and a thermoplastic resin, wherein
(1) the molding material is a solid having a plane A1 and one or more other face Bi, one or more cross sections of the carbon fibers are observed in at least one face Bi, and the number of the cross sections of the carbon fibers per unit area observed in the face Bi is twice or more the number of the cross sections of the carbon fibers per unit area observed in the plane A1, and(2) a ratio of fibers in which 50% or more of an outer peripheral surface of each carbon fiber is coated with the thermoplastic resin is from 80 to 100% to total carbon fibers.

主权项

1. A molding material for injection molding, extrusion molding or pultrusion molding, which contains carbon fibers having a fiber length of 2 mm or more and a thermoplastic resin, wherein
the carbon fibers are PAN-based carbon fibers,
(1) the molding material is a solid having a plane A1 and one or more other face Bi, one or more cross sections of the carbon fibers are observed in at least one face Bi, and the number of the cross sections of the carbon fibers per unit area observed in the face Bi is twice or more the number of the cross sections of the carbon fibers per unit area observed in the plane A1, the carbon fibers are randomly dispersed in a plane direction parallel to the plane A1, and(2) a ratio of fibers in which 50% or more of an outer peripheral surface of each carbon fiber is coated with the thermoplastic resin is from 80 to 100% to total carbon fibers, andwhen melt-kneaded to a dispersion parameter of 0 to 10%, the carbon fibers contained in the melt-kneaded molding material has a weight average fiber length of 0.3 mm or more.