Thermoplastic resin composition and molded article

A method of preparing a thermoplastic resin composition, comprising:

• desalting waste polyester fishing nets having an intrinsic viscosity (IV) of 0.6 to 0.9 dl/g to obtain waste fishing net pellets and chip-molding the waste fishing net pellets to manufacture a recycled molded article containing 60 to 99.9% by weight in total of Ca, Fe, and S and 0.1 to 40% by weight in total of Na, Mg, Al, Si, K, Ti, Ni, Zn, Sb, and Cl, based on 100% by weight of total inorganic components as measured using Inductively Coupled Plasma Optical Emission spectroscopy (ICP-OES) equipment;
• and
• melt-kneading and extruding the recycled molded article, a polyester resin having an intrinsic viscosity (IV) of less than 1.0 dl/g, a reinforcing resin, and a filling fiber,
• wherein, when a weight of the polyester resin is a, a weight of the reinforcing resin is b, a weight of the filling fiber is c, and a weight of the recycled molded article is d, the thermoplastic resin composition simultaneously satisfies 37≤a≤59.2, 15≤b≤19.9, 20≤c≤34.9, and 5≤d≤14.9.