Kune mhando mbiri huru dzepolypropylene dziripo: homopolymers necopolymers. Macopolymers akakamurwazve kuita mablock copolymers nerandom copolymers.
Chikamu chimwe nechimwe chinokodzera mamwe mashandisirwo zviri nani pane zvimwe. Polypropylene inowanzonzi "simbi" yeindasitiri yepurasitiki nekuda kwenzira dzakasiyana-siyana dzainogona kugadziriswa kana kugadziriswa kuti ibudirire chinangwa chakati.
Izvi zvinowanzoitwa nekuisa zvimwe zvinhu zvakakosha pairi kana nekugadzira nenzira chaiyo. Kuchinjika uku chinhu chakakosha.
Homopolymer polypropyleneigiredhi rekushandisa zvinhu zvakawanda. Unogona kufunga nezveizvi semamiriro ezvinhu chaiwo epurasitiki.Copolymer yebhurokoPolypropylene ine mayuniti e-monomer akarongwa mumabhuroko (ndiko kuti, muchimiro chakajairika) uye ine pakati pe5% kusvika 15% ethylene.
Ethylene inovandudza zvimwe zvinhu, zvakaita sekudzivirira kukuvadzwa kweganda ukuwo zvimwe zvinhu zvinowedzera zvimwe zvinhu.
Copolymer isina kurongekapolypropylene – kusiyana ne block copolymer polypropylene – ine ma co-monomer units akarongwa mumaitiro asina kurongeka kana kuti asina kurongeka pamwe chete ne polypropylene molecule.
Kazhinji zvinosanganiswa ne ethylene iri pakati pe1% kusvika 7% uye zvinosarudzwa kuti zvishandiswe kana paine chigadzirwa chinonyungudika uye chakajeka chinodiwa.
Nguva yekutumira: Zvita-05-2022