Izinto ezihlukene, i-PE: i-polyethylene, i-PP: i-polypropylene
I-PP iyipulasitiki ye-polypropylene elula, ewuhlobo lwe-thermoplastic.Izikhwama ze-PP empeleni ziyizikhwama zepulasitiki.Izici zezikhwama ze-PP azinabuthi futhi azinambitheki.Ingaphezulu lesikhwama se-PP libushelelezi futhi lisobala, futhi lisetshenziswa kabanzi ekufakweni kwezimonyo, ukudla, amathoyizi, okokugqoka, okokubhala, izinto zikagesi, imikhiqizo yehardware nezinye izimboni.Umbala wesikhwama se-PP usobala, ikhwalithi enhle, ukuqina okuhle, unamandla, futhi awukwazi ukuklwejwa.Izindleko zokucubungula izikhwama ze-PP zishibhile kakhulu, futhi izici ziyizi: kulula ukushisa, ilangabi lincibilikile futhi liyaconsa, elingaphezulu liphuzi futhi eliphansi liluhlaza okwesibhakabhaka, ngemva kokushiya umlilo, kunentuthu encane futhi ukuvutha kuyaqhubeka.
I-PE isifinyezo se-polyethylene, okuwuhlobo lwe-thermoplastic resin eyenziwe nge-polymerization ye-ethylene.I-polyethylene ayinaphunga, ayinabo ubuthi, izwakala njengengcina, inokumelana nezinga lokushisa eliphansi kakhulu (izinga lokushisa eliphansi kakhulu lingafinyelela -70～-100℃), linokuqina okuhle kwamakhemikhali, futhi likwazi ukumelana nama-asidi amaningi nama-alkali (awakwazi ukumelana nezakhiwo ze-oxidizing) I-Acid), engancibiliki kuma-solvents ajwayelekile ekamelweni lokushisa, ukumuncwa kwamanzi aphansi, izakhiwo ezinhle kakhulu zokuvala ugesi;kodwa i-polyethylene izwela kakhulu ekucindezelekeni kwemvelo (imiphumela yamakhemikhali nemishini), futhi inokumelana nokuguga okumpofu kokushisa.Izakhiwo ze-polyethylene ziyahlukahluka ezinhlotsheni kuya kwezinhlobo, ikakhulukazi kuye ngesakhiwo samangqamuzana nokuminyana.Izindlela ezihlukene zokukhiqiza zingasetshenziswa ukuze kutholwe imikhiqizo enokuminyana okuhlukile (0.91～0.96g/cm3).Ngaphezu kwalokho, ukugoqa kwepulasitiki kwezinto ze-PE kungabizwa nangokuthi isikhwama se-PE.Qaphela ukuthi ukugoqa kwepulasitiki okuhlangana ngqo nokudla kumele kwenziwe ngezinto ze-PE, eziphephe kakhudlwana emzimbeni womuntu.
Isikhathi sokuthumela: Jun-17-2021