| abstract |
(57) [Abstract] [Purpose] To provide a glass fiber reinforced resin composition having excellent heat resistance, rigidity and impact resistance. [Structure] (a) The melting point (T m ) in differential scanning calorimetry (DSC) measurement (heating rate: 10 ° C./min) is 166 ° C. or higher, and the heat of fusion (ΔH m ) is 118 J / g or higher. Highly crystalline polypropylene and (b) average fiber diameter of 3-11 The bending elastic modulus (FM, unit: kgf / cm 2 ) composed of glass fiber having a range of μm and (c) modified polyolefin and measured at room temperature according to ASTM D-790 is represented by the following formula (I): FM ≧ 212170. × ρ−172870 ... (I) (0.915 ≦ ρ ≦ 1.50) is satisfied, and ASTM Tensile strength (TS, measured at room temperature according to D-638 Unit: kgf / cm 2 ) is the following formula (II) or (III): TS ≧ 3250 × ρ−2400 ... (II) (0.915 ≦ ρ ≦ 1.14) TS ≧ 670 × ρ + 540. .. (III) (1.14 <ρ ≦ 1.50) is satisfied, The glass fiber reinforced resin composition characterized by the above-mentioned. |