Overall, PCR recycled materials exhibit certain disadvantages in chemical properties compared to virgin materials, primarily in terms of molecular structure stability, impurity content, and thermochemical resistance. In recent years, with the refinement of raw material classification and closed-loop recycling systems, coupled with the development of advanced sorting, cleaning, and reprocessing technologies, the performance of PCR recycled materials has been significantly improved, narrowing the gap with virgin materials.

Therefore, to further deepen its application and development, it is necessary to explore the entire process, including raw material recycling, equipment optimization, mold structure.