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" yeindastiri yepurasitiki nekuda kwenzira dzakasiyana-siyana dzaanogona kugadziridzwa kana kugadzirwa kuti dzishande zvakanyanya chimwe chinangwa.
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 - kusiyana nekuvhara copolymer polypropylene - ine mayuniti e-co-monomer akarongwa zvisina kurongeka 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