| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition excellent in a modulus of elasticity, mechanical strengths and flowability, and a cylindrical injection molded article excellent in roundness, appearance, rigidity, mechanical strengths and weld strength. SOLUTION: In the thermoplastic resin composition, an average fiber length of a fiber B in the pellet, obtained by melting/kneading (A) 50-90 mass% of a thermoplastic resin, (B) 5-40 mass% of a glass fiber (fiber B) having an average fiber length of 2-8 mm, an aspect ratio (long diameter/short diameter) of a fiber cross section of 1-2 and a short diameter of 8-17μm and (C) 5-40 mass% of a glass fiber (fiber C) having an average fiber length of 2-8 mm, an aspect ratio (long diameter/short diameter) of a fiber cross section of 3-6 and a short diameter of 5-10μm, is controlled to 0.16-0.40 mm and an average fiber length of the fiber C is controlled to 0.20-0.45 mm. COPYRIGHT: (C)2010,JPO&INPIT |
