| 摘要 |
<p>PURPOSE: A method for preparing recycled polyester using waste polyester is provided to reduce production time of recycled polyester by reducing the time required for a depolymerization process. CONSTITUTION: A method for preparing recycled polyester comprises a depolymerization process for depolymerizing waste polyester flakes and bis-2-hydroxyethyl terephthalate(hereinafter, BHET) and a polycondensation process for polycondensing the BHET with the recycled polyester. The depolymerization process and polycondensation process are performed in a separate reaction bath.</p> |
