I-PP, eyaziwa nangokuthi i-polypropylene, iyi-polymer eyenziwe nge-polypropylene kanye ne-alkene reaction, iyi-waxy emhlophe, ebonakalayo futhi ekhanyayo.Ifomula yamakhemikhali ithi (C3H6) x, ukuminyana kungu-0.89-0.91g/cm3, indawo evuthayo, encibilikayo engu-165℃, ithambe ngo-155℃, izinga lokushisa lokusebenzisa ngu-30～140℃.Ngaphansi kuka-80 ℃ ingamelana nokugqwala kwe-asidi, i-alkali, uketshezi lukasawoti kanye nezinhlobonhlobo zezinyibilikisi eziphilayo, zingaboliswa ngaphansi komphumela wokushisa okuphezulu kanye ne-oxidation.Ama-pp bristles enziwe nge-polypropylene, engaguquguquki kancane, engagugi futhi enganyanyisi kune-pbt, ngakho-ke isetshenziswa kumabhulashi amaningi okuhlanza asezingeni eliphansi.

Nakuba ama-pp bristles eshibhile kakhulu, angasetshenziswa ukuvula amabhodi esekethe, ngani?Ngoba i-pp ngokwayo ishajwe ngogesi, uma ihlanganiswe nethoni yokushayela yekhwalithi ephezulu, kuzoba yisandla esihle sokuvula i-current.