| 摘要 |
PROBLEM TO BE SOLVED: To make moldability easy while strength, rigidity, and impact resistance are provided by a method wherein an weight-average length of a fiber contained in a fiber reinforced resin molded product and a value based on a fiber content are allowed to have specific values. SOLUTION: A fiber contained in a fiber reinforced resin molded product is allowed to have a value of 7 or over up to and including 600 in the formula:Σ(1wa×Wf). Herein, 1wa indicates an weight-average fiber length (mm) of the fiber contained in the fiber reinforced resin molded product, Wf indicates a fiber content (wt.%), andΣmeans, when the fiber contained in the fiber reinforced resin molded product has a plurality of kinds, that values in the parenthesis are totalized for each fiber. When Wf is 8 wt.% or over up to and including 70 wt.%, or 1wa is 0.1 mm or over up to and including 10 mm, mechanical properties such as strength, rigidity, impact resistance, etc., come to have an optimum balance, and moldability becomes especially good. Further, as the resin, a thermoplastic resin which is more excellent in impact resistance and can be injection molded, is preferable.
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