Kune mhando mbiri huru dzepolypropylene dziripo: homopolymers uye copolymers.Iwo macopolymers anokamurwazve kuita block copolymers uye random copolymers.
Chikamu chega chega chinokodzera mamwe maapplication zviri nani pane mamwe.Polypropylene inowanzonzi "simbi" yeindasitiri yepurasitiki nekuda kwenzira dzakasiyana siyana dzaanogona kugadziridzwa kana kugadziridzwa kuti dzishande zvakanyanya chinangwa chakati.
Izvi zvinowanzoitwa kuburikidza nekuunza zvimwe zvinowedzera kwazviri kana nekugadzira nenzira chaiyo.Uku kuchinjika chinhu chakakosha.
Homopolymer polypropyleneigiredhi-chinangwa giredhi.Iwe unogona kufunga nezve izvi senge default mamiriro eiyo polypropylene zvinhu.Block copolymerpolypropylene ine ma-co-monomer units akarongwa mumabhuroko (kureva, nenzira yenguva dzose) uye ane chero pakati pe5% kusvika 15% ethylene.
Ethylene inonatsiridza zvimwe zvivakwa, senge kukanganisa kupikisa nepo zvimwe zvinowedzera zvinowedzera zvimwe zvivakwa.
Random copolymerpolypropylene - kupesana nekuvhara copolymer polypropylene - ine mayuniti e-co-monomer akarongwa zvisina kujairika kana zvisina tsarukano mapatani padivi pepolypropylene molecule.
Iyo inowanzobatanidzwa nechero pakati pe1% kusvika 7% ethylene uye inosarudzirwa maapplication panodiwa chimwe chinoumbika, chakajeka chigadzirwa.
Nguva yekutumira: Zvita-05-2022