Ama-pallet epulasitiki okwamanje enziwe kakhulu nge-HDPE, futhi amazinga ahlukene e-HDPE anezakhiwo ezihlukile. Izici ezihlukile ze-HDPE yinhlanganisela efanele yeziguquguquko ezine eziyisisekelo: ubuningi, isisindo sama-molecule, ukusatshalaliswa kwesisindo sama-molecule kanye nezithasiselo. Kusetshenziswa ama-catalyst ahlukene ukukhiqiza ama-polymer akhethekile akhethekile enziwe ngokwezifiso. Lezi ziguquguquko zihlanganiswa ukukhiqiza amazinga e-HDPE ngezinhloso ezahlukene, kufezwe ibhalansi ekusebenzeni.
Ekukhiqizweni nasekucutshungulweni kwangempela kwama-pallet epulasitiki, ikhwalithi yalezi ziguquguquko eziyinhloko inomthelela komunye nomunye. Siyazi ukuthi i-ethylene iyinto eluhlaza eyinhloko ye-polyethylene, kanti amanye ama-comonomer ambalwa, njenge-1-butene, i-1-hexene noma i-1-octene, nawo avame ukusetshenziswa ukuthuthukisa izakhiwo ze-polymer. Kwi-HDPE, okuqukethwe kwama-monomer ambalwa angenhla ngokuvamile akudluli ku-1%-2%. Ukwengezwa kwama-comonomer kunciphisa kancane ukwakheka kwe-polymer. Lolu shintsho ngokuvamile lulinganiswa ngobuningi, futhi ubuningi buhlobene ngokuqondile nokwakheka kwe-crystallinity.
Eqinisweni, ubuningi obuhlukene be-HDPE buzoveza umehluko omkhulu ekusebenzeni kwama-pallet epulasitiki enziwe. Ubuningi be-polyethylene ephakathi nendawo (MDPE) busukela ku-0.926 kuya ku-0.940g/CC. Ezinye izinhlobo ngezinye izikhathi zihlukanisa i-MDPE njenge-HDPE noma i-LLDPE. Ama-homopolymer anobukhulu obuphezulu, ukuqina, ukungangeni kahle kanye nendawo yokuncibilika ephezulu kakhulu.
Ngokuvamile enkambisweni yokwenza ama-pallet epulasitiki, ezinye izithasiselo zivame ukudingeka ukuqinisekisa ukusebenza okudingekayo. Ukusetshenziswa okuqondile kudinga ukwakheka okukhethekile kwezithasiselo, njengokufakwa kwama-antioxidants ukuvimbela ukuwohloka kwe-polymer ngesikhathi sokucubungula nokuvimbela ukubola komkhiqizo oqediwe ngesikhathi sokusetshenziswa. Izithasiselo ezilwa ne-static zisetshenziswa ezinhlotsheni eziningi zokupakisha ukunciphisa ukunamathela kothuli nokungcola emabhodleleni noma ekupakisheni.
Ngaphezu kwalokho, ukuze kuqinisekiswe ikhwalithi yama-pallet epulasitiki, kufanele kuqashelwe kakhulu ukupakishwa nokugcinwa kwezinto zokusetshenziswa. Ngokuvamile lapho kugcinwa izinto ze-HDPE, kudingeka ukuthi zibe kude nemithombo yomlilo, zifakwe umswakama, futhi isitoreji kufanele sigcinwe somile futhi sicocekile. Akuvunyelwe ngokuphelele ukuxuba noma yikuphi ukungcola, futhi akuvunyelwe ngokuphelele ukuthi kuvezwe elangeni nasemvuleni. Ngaphezu kwalokho, ngesikhathi sokuthuthwa, kufanele kugcinwe enqoleni noma ekhabinini elihlanzekile, elomile nelimboziwe, futhi akufanele kuvunyelwe izinto ezibukhali njengezipikili.
Isikhathi sokuthunyelwe: Julayi-04-2025
