Amaphalethi epulasitiki okwamanje enziwe ngokuyinhloko nge-HDPE, futhi amamaki ahlukene e-HDPE anezakhiwo ezihlukene. Izici eziyingqayizivele ze-HDPE ziyinhlanganisela efanele yezinto ezine eziyisisekelo: ukuminyana, isisindo samangqamuzana, ukusabalalisa isisindo samangqamuzana kanye nezithasiselo. Ama-catalyst ahlukene asetshenziselwa ukukhiqiza ama-polymers akhethekile akhethekile. Lezi ziguquko zihlanganiswa ukuze kukhiqizwe amamaki e-HDPE ngezinhloso ezahlukene, kuzuzwe ibhalansi ekusebenzeni.
Ekukhiqizeni kwangempela kanye nokucubungula kwama-pallets epulasitiki, ikhwalithi yalezi ziguquko eziyinhloko zinomthelela komunye nomunye. Siyazi ukuthi i-ethylene iwumthombo oyinhloko we-polyethylene, futhi amanye ama-comonomer ambalwa, njenge-1-butene, i-1-hexene noma i-1-octene, nawo avame ukusetshenziselwa ukuthuthukisa izakhiwo ze-polymer. Nge-HDPE, okuqukethwe kwama-monomer ambalwa angenhla ngokuvamile akudluli u-1% -2%. Ukwengezwa kwama-comonomers kunciphisa kancane i-crystallinity ye-polymer. Lolu shintsho luvame ukukalwa ngokuminyana, futhi ukuminyana kuhlobene ngokuqondile nokucwebezela.
Eqinisweni, ukuminyana okuhlukile kwe-HDPE kuzoveza umehluko omkhulu ekusebenzeni kwamaphalethi epulasitiki enziwe. Ukuminyana kwe-polyethylene ephakathi nendawo (MDPE) kusuka ku-0.926 kuye ku-0.940g/CC. Ezinye izigaba kwesinye isikhathi zihlukanisa i-MDPE njenge-HDPE noma i-LLDPE. Ama-homopolymers anokuqina okuphezulu kakhulu, ukuqina, ukungamibili okuhle kanye nendawo ephezulu yokuncibilika.
Ngokuvamile ekwenzeni ama-pallets epulasitiki, ezinye izithasiselo zivame ukudingeka ukuze kuqinisekiswe ukusebenza okudingekayo. Ukusetshenziswa okuqondile kudinga ukwakheka okungeziwe okukhethekile, njengokwengezwa kwama-antioxidants ukuvimbela ukuwohloka kwe-polymer ngesikhathi sokucubungula nokuvimbela i-oxidation yomkhiqizo oqediwe ngesikhathi sokusetshenziswa. Izithasiselo ze-Antistatic zisetshenziswa kumabanga amaningi okupakisha ukunciphisa ukunamathela kothuli nokungcola emabhodleleni noma emaphaketheni.
Ngaphezu kwalokho, ukuze kuqinisekiswe ikhwalithi yama-pallets epulasitiki, ukunakwa okwengeziwe kufanele kukhokhwe ekufakweni nasekugcinweni kwezinto zokusetshenziswa. Imvamisa lapho ugcina izinto ze-HDPE, kuyadingeka ukuthi ungabi kude nemithombo yomlilo, uvale, futhi indawo yokugcina impahla kufanele igcinwe yomile futhi icocekile. Kwenqatshelwe ngokuphelele ukuxuba noma yikuphi ukungcola, futhi kwenqatshelwe ngokuphelele ukuchayeka elangeni nasemvuleni. Ngaphezu kwalokho, ngesikhathi sokuthutha, kufanele kugcinwe enqoleni ehlanzekile, eyomile futhi evaliwe noma ekhabetheni, futhi akukho zinto ezibukhali njengezinzipho okufanele zivunyelwe.
Isikhathi sokuthumela: Jul-04-2025
