In this paper

the cleaning

separation and purification processes of the three waste plastics mixtures for medical non-prohibited

PET bottle and mulching film were studied

and the properties of the purified waste plastics were compared with those of the pure waste plastics. It was found that after sorting

crushing

friction cleaning

water rinsing

drying

rubber separator and air separator

polypropylene (PP) crushing material and polyethylene/polypropylene (PE/ PP) composite material obtained from disposable infusion bottle/bag waste plastic have almost the same performance as the corresponding pure crushing material. The purity of PET crushing material was very high after destandard

crushing

scrubbing

rinsing

detergent hot washing and air separation process. The impurities content of PE broken film was very low after shredding

sand removal

crushing

friction cleaning and other processes.