Polypropylene resin composition and molded product thereof

polypropylene resin composition comprising:

• a base resin,
• a thermoplastic elastomer, and
• an inorganic filler,
• wherein the base resin is a polypropylene-based mixed resin comprising a first resin, a second resin, a third resin, and a fourth resin,
• the first resin is a homopolypropylene resin,
• the second resin, the third resin, and the fourth resin are each a polypropylene-based block copolymer resin,
• a melt index of the second resin measured at a temperature of 230 ° C. and under a load of 2.16 kg is higher than a melt index of each of the third resin and the fourth resin measured under the same condition,
• a flexural modulus of the third resin measured in accordance with ASTM D790 is lower than a flexural modulus of the fourth resin measured under the same condition, and
• the third resin has a flexural modulus of about 1,000 kg/cm2 to about 1,300 kg/cm2, and the fourth resin has a flexural modulus of about 1,400 kg/cm2 to about 1,600 kg/cm2, measured in accordance with ASTM D790.