Imibhobho ye-PP yenziwa kwi-polypropylene, i-thermoplastic polymer eyaziwa ngokuqina kwayo kunye neepropathi ezilula. Enye yezibonelelo ezizimeleyo zemibhobho ye-PP kukuxhathisa kwabo okugqwesileyo nokubola kweekhemikhali, ukwenza zilungele ukuhambisa uluhlu olubanzi lwamanzi, kubandakanya ii-asidi kunye neziseko. Olu mgangatho luncedo ngokukodwa kwizicelo zeshishini apho ukumelana neekhemikhali