Polyplastics PIR mechanical recycling of PPS reshapes the recycling paradigm of engineering plastics

  In February 2025, Polyplastics announced the launch of the world's first 40% glass fiber reinforced PIR recycled PPS - DURAFIDE® rG-PPS, reconstructing the recycling logic of super engineering plastics through the "Open PIR Program"25.

  The technical breakthrough lies in the "re-blending" process:

  Source control: only self-produced glass fiber reinforced PPS scraps are recycled to eliminate raw material performance fluctuations;

  Deep metal removal: 100% removal of metal impurities in the previous process to ensure electrical insulation;

  New material compounding and strengthening: recycled materials and virgin materials are scientifically blended and passed the quality test equivalent to new materials5.

  This technology reduces the product carbon footprint (PCF) by more than 30%, and will be first supplied to the Japanese market after mass production in December 2025. Polyplastics simultaneously develops high-filled grades and plans a global "local production-local consumption" recycling chain to meet the mandatory requirement of 25% recycled plastics in the EU ELV regulations5.

  Differentiated value of PIR and PCR:

  Source difference: PIR is derived from factory production waste (such as nozzles, defective products), and its quality stability is better than PCR plastics recycled after consumption;

  Application scenarios: PIR recycled PPS is suitable for high-reliability fields, such as new energy vehicle battery brackets and 5G base station precision components, while PCR focuses more on daily necessities and packaging8.

  China's inspiration: Cangzhou Dahua's continuous production of silicon copolymer PC and Wanhua Chemical's PCR modification technology show that domestic companies are learning from the PIR model to tackle high-end recycled engineering plastics and promote 100% recycling of PA, PC, etc.