Okwamanje, ukusetshenziswa okuyinhloko kwe-i-polyethyleneezweni lakithi kuhlanganisa ifilimu, ukubumba ngomjovo, ipayipi, umgodi, umdwebo wocingo, ikhebula, i-metallocene, ukugqoka kanye nezinye izinhlobo eziyinhloko.
Okokuqala ukuthwala umthwalo omkhulu, ingxenye enkulu yokusetshenziswa okuphansi yifilimu. Embonini yemikhiqizo yamafilimu, okuyinhloko yifilimu yezolimo, ifilimu yezimboni kanye nefilimu yokupakisha imikhiqizo. Kodwa-ke, eminyakeni yamuva nje, izici ezifana nemikhawulo yezikhwama zepulasitiki kanye nokuncipha okuphindaphindiwe kwesidingo ngenxa yobhubhane ziye zabakhathaza ngokuphindaphindiwe, futhi babhekene nesimo esihlazisayo. Isidingo semikhiqizo yamafilimu epulasitiki esetshenziswayo yendabuko sizothathelwa indawo kancane kancane ngokuthandwa kwamapulasitiki abolayo. Abakhiqizi abaningi bamafilimu nabo babhekene nokusungulwa kobuchwepheshe bezimboni, futhi kancane kancane bathuthukela kumafilimu ezimboni angasetshenziswa kabusha anekhwalithi nokusebenza okuqinile. Kodwa-ke, ngenxa yokonakala kwamafilimu epulasitiki abolayo, kunezidingo eziqinile zokupakisha kwangaphandle, noma isidingo samafilimu okupakisha angaphandle okudingeka agcinwe isikhathi eside ngale kwesikhathi sokonakala, futhi amafilimu ezimboni kanye neminye imikhakha asakwazi ukushintshwa, ngakho-ke imikhiqizo yamafilimu isazosetshenziswa. Ibilokhu ikhona njengomkhiqizo oyinhloko ongaphansi kwe-polyethylene isikhathi eside, kodwa kungase kube nokwehla kokukhula kokusetshenziswa kanye nokwehla kwesilinganiso.
Ngaphezu kwalokho, izimboni ezifana nokubumba ngemijovo, amapayipi, kanye nemigodi ehlobene kakhulu nokukhiqiza nokuphila zizohlala ziyimikhiqizo eyinhloko yabathengi ngaphansi kwe-polyethylene eminyakeni embalwa ezayo, futhi zizoqhubeka zibuswa yingqalasizinda, izidingo zansuku zonke, kanye namathuluzi nemishini yomphakathi. Indlela yokuphila yabantu ixhunyaniswe nezimpahla ezihlala isikhathi eside, futhi isidingo sokubola komkhiqizo sinciphile. Inkinga enkulu ebhekene nezimboni ezingenhla njengamanje ukuthi izinga lokukhula komkhakha wezindlu liye lama eminyakeni yamuva nje. Ngenxa yezici ezifana nempendulo engemihle ngombono wokusetshenziswa kwezakhamuzi obangelwa ubhubhane oluphindaphindwayo, intuthuko yomkhakha womkhiqizo ibhekene nokumelana nokukhula okuthile. Ngakho-ke, ushintsho lwesilinganiso sesikhathi esifushane lulinganiselwe, aluthinteki kakhulu ngemikhiqizo yokubola, imboni yamapayipi cishe izothinteka kakhulu yizinqubomgomo, kuyilapho ukubumba ngemijovo kanye nemikhiqizo engenalutho kuthinteka kakhulu ngombono wokusetshenziswa kwezakhamuzi, futhi izinga lokukhula lizoncipha isikhathi esithile esikhathini esizayo.
Ngokuthuthuka okuqhubekayo kwesayensi nobuchwepheshe, ukusungulwa kwemikhiqizo yepulasitiki ngokwezifiso kanye nobuntu, kanye nokusungulwa kwekhwalithi yomkhiqizo kanye nezidingo zokukhiqiza ezenziwe ngokwezifiso nakho kuyaqhubeka nokukhula. Ngakho-ke, esikhathini esizayo, imboni yemikhiqizo yepulasitiki izokwandisa isidingo sezinto zokusetshenziswa ezithile ezithuthukisa ukusebenza kwemikhiqizo yepulasitiki, njenge-metallocenes, ipulasitiki egoqayo, izinto zokumboza kanye neminye imikhiqizo enenani eliphakeme noma imikhiqizo enezidingo ezihlukile emikhakheni ekhethekile. Ngaphezu kwalokho, ngenxa yokukhiqizwa okugxilile kwamabhizinisi okukhiqiza i-polyethylene ephezulu eminyakeni yamuva nje, okuholele ekuguqukeni okukhulu komkhiqizo, kanye nokungqubuzana phakathi kweRussia ne-Ukraine phakathi nonyaka kubangele amanani aphezulu kawoyela ukuthi anyuse inzuzo ye-ethylene engezansi, kanye nokwanda kwezindleko kanye nokuhlinzekwa kuholele ekufana okukhulu komkhiqizo. Ngaphansi kwesimo samanje, abakhiqizi be-polyethylene baqala ukusebenza kakhulu ekukhiqizweni kwemikhiqizo enenani eliphakeme njenge-metallocenes, ukubumba okujikelezayo, kanye nokumboza, ngokuhambisana nokuthuthukiswa kwezimboni ezingezansi. Ngakho-ke, izinga lokukhula kwemikhiqizo lingakhuphuka ngezinga elithile esikhathini esizayo.
Ngaphezu kwalokho, njengoba ubhubhane luqhubeka ngokuphindaphindiwe, kanye nocwaningo nokuthuthukiswa kwemikhiqizo emisha ngabakhiqizi, imicu ye-polyethylene, izinto ezikhethekile zomkhiqizo wezokwelapha nowokuvikela nazo ziyalandelwa futhi zithuthukiswe kancane kancane, futhi isidingo sesikhathi esizayo naso sizokhula kancane kancane.
Isikhathi sokuthunyelwe: Disemba-26-2022