
Keywords: پاسخ سریع; Laser marking; Polypropylene; Antimony trioxide; Polystyrene; Carbonization; AIBN; 2,2â²-azobisisobutyronitrile; FT-IR; Fourier transform infrared spectroscopy; HDPE; high-density polyethylene; nano-ATO; nano-antimony-doped tin oxide; Nd:YAG; neodymium-d