Lub npe tshuaj ntawm ppr yog polypropylene random copolymer, uas tseem yog ib hom polypropylene. Cov qauv yooj yim ntawm nws cov saw hlau polymer tau hloov pauv los ntawm kev ntxiv ntau hom sib txawv ntawm monomer molecules. Ethylene yog siv ntau tshaj monomer, uas ua rau muaj kev hloov pauv hauv lub cev ntawm polypropylene. Piv nrog PP homopolymers, cov khoom siv hluav taws xob sib txawv tau txhim kho cov khoom siv kho qhov muag (nce pob tshab thiab txo cua daj cua dub), txhim kho kev cuam tshuam kev cuam tshuam, nce kev hloov pauv, txo qis kub yaj, thiab yog li txo qis kub vuam kub. ; Nyob rau tib lub sijhawm, nws zoo ib yam li homopolymer hais txog kev ruaj ntseg tshuaj, cov dej ua kom tsis muaj zog thiab cov khoom siv organoleptic (tsis hnov tsw thiab saj). Siv hauv tshuab moulding, txhaj tshuaj molding, extrusion, zaj duab xis thiab ntawv ua tiav, tus kws sau ntawv siv cov kav dej, cov khoom ntim khoom noj, cov khoom ntim khoom kho mob thiab cov khoom siv niaj hnub siv.
