| 摘要 |
PURPOSE:To improve drastically mechanical strength by making fiber dispersion favor able and reducing a breakage or a rapture of a fiber at the time of molding irrespec tive of a fact that a fiber reinforcement material is filled in high density into the title material, by a method wherein melt viscosity of polycarbonate resin is made into 3000 poise or more and 7000 poise or less under the condition that a temperature and shearing stress are respectively 300 deg.C and 10<6>dyn/cm<2>. CONSTITUTION:A fibrous reinforcement material constituted of a single fiber 22 is covered with polycarbonate resin 21. Furthermore, a boardlike body comprised by infiltrating the polycarbonate resin 21 into the fibrous reinforcement material 22 is cut off and a desired molding material 20 is obtained. In this instance, a loading of the fibrous reinforcement material 22 to the molding material 20 is made into 50wt.% or more and 90wt.% or less and a length of the fibrous reinforcement is made into 1-30mm. Furthermore, at least one side of the boardlike material and a specific surface area of the molding material 20 are made into respectively 1mm or less and at least 20cm<2>/g. In this instance, melt viscosity of the polycarbonate resin 21 is made into 3000 poise or more and 7000 poise or less under the condition that a temperature and shearing stress are respectively 300 deg.C and 10<6>dyn/cm<2>. |
