Inqubomgomo Yemvelo kanye Neziqondiso Zokuklama
Eminyakeni yamuva nje, ukuguquguquka kwesimo sezulu kanye nezinhlobo ezihlukahlukene zokungcola kuye kwabikwa ngokuqhubekayo, okudonsela ukunaka kwamazwe amaningi namabhizinisi, futhi amazwe aye aphakamisa izinqubomgomo zokuvikela imvelo ngokulandelana kwazo.
I-United Nations Environment Assembly (UNEA-5) igunyaze isinqumo esiyingqopha-mlando ngomhla zi-2 kuNdasa 2022 sokuqeda ukungcoliswa kwepulasitiki ngo-2024. Esigabeni sebhizinisi, ngokwesibonelo, ukupakishwa komhlaba wonke kwe-Coca-Cola ka-2025 kungaphinda kusetshenziswe ngo-100%, kanti ukupakishwa kwe-Nestlé ka-2025 kungu-10. % engagaywa kabusha noma esebenziseka kabusha.
Ngaphezu kwalokho, izinhlangano zamazwe ngamazwe, ezifana nomnotho oyindilinga wokupakisha oguquguqukayo i-CEFLEX kanye nethiyori yezimpahla zabathengi i-CGF, nazo zabeka phambili izimiso zokuklama umnotho oyindilinga kanye nezimiso zokuklama kwegolide ngokulandelana kwazo. Lezi zimiso ezimbili zokuklama zinezikhombisi-ndlela ezifanayo ekuvikelweni kwemvelo kokupakishwa okuguquguqukayo: 1) Impahla eyodwa kanye nayo yonke i-polyolefin isesigabeni sezinto ezigaywe kabusha; 2) Ayikho i-PET, inayiloni, i-PVC nezinto eziwohlokayo ezivunyelwe; I-3) I-Barrier layer coating I-tier ayikwazi ukudlula u-5% wayo yonke.
Ubuchwepheshe busekela kanjani ukupakishwa okuvumelana nezimo ezemvelo
Ngokubheka izinqubomgomo zokuvikela imvelo ezikhishwe ekhaya naphesheya, ungakusekela kanjani ukuvikelwa kwemvelo kokupakishwa okuguquguqukayo?
Okokuqala, ngaphezu kwezinto eziwohlokayo kanye nobuchwepheshe, abakhiqizi bakwamanye amazwe batshale imali ekuthuthukiseniukugaywa kabusha kwepulasitiki kanye namapulasitiki nemikhiqizo esekwe ku-bio. Isibonelo, u-Eastman wase-United States utshale imali kubuchwepheshe bokubuyisela kabusha i-polyester, iToray yaseJapan yamemezela ukuthuthukiswa kwenayiloni esekelwe ku-bio i-N510, kwathi i-Suntory Group yase-Japan yamemezela ngoDisemba 2021 ukuthi idale ngempumelelo i-100% yebhodlela le-PET elisekelwe ku-bio. .
Okwesibili, ekuphenduleni inqubomgomo yasekhaya yokuvimbela ukusetshenziswa kwepulasitiki okukodwa, ngaphezu kwalokhoIzinto eziwohlokayo ze-PLA, iChina nayo itshale imaliekuthuthukisweni kwezinto ezihlukahlukene ezonakaliswa njenge-PBAT, i-PBS nezinye izinto kanye nezinhlelo zokusebenza ezihlobene nazo. Ingabe izici ezibonakalayo zezinto eziwohlokayo zingahlangabezana nezidingo zemisebenzi eminingi yokupakishwa okuguquguqukayo?
Kusukela ekuqhathanisweni kwezinto ezibonakalayo phakathi kwamafilimu e-petrochemical namafilimu awonakele,izakhiwo zokuvimbela izinto eziwohlokayo zisekude namafilimu endabuko. Ngaphezu kwalokho, nakuba izinto ezihlukahlukene zokuvimbela zingaphinde zimbozwe ezintweni ezonakalisayo, izindleko zezinto zokumboza nezinqubo zizokwenyuka, kanye nokusetshenziswa kwezinto eziwohlokayo emaphaketheni athambile, okuyizikhathi eziphindwe izikhathi ezingu-2-3 kunezindleko zefilimu yokuqala ye-petrochemical. , kunzima kakhulu.Ngakho-ke, ukusetshenziswa kwezinto eziwohlokayo ekufakweni okuguquguqukayo nakho kudinga ukutshala ocwaningweni nasekuthuthukisweni kwezinto ezingavuthiwe ukuxazulula izinkinga zezakhiwo ezibonakalayo nezindleko.
Ukupakisha okuvumelana nezimo kunenhlanganisela eyinkimbinkimbi uma kuqhathaniswa yezinto ezihlukahlukene ukuze kuhlangatshezwane nezidingo zomkhiqizo zokubukeka kanye nokusebenza kwephakeji. Ukuhlukaniswa okulula kwezinhlobo ezahlukene zamafilimu okuhlanganisa ukuphrinta, izici zemisebenzi nokuvalwa kokushisa, izinto ezisetshenziswa kakhulu yi-OPP, i-PET, i-ONY, i-aluminium foil noma i-aluminium, izinto zokuvala ukushisa kwe-PE ne-PP, amafilimu e-PVC kanye ne-PETG ancipha ukushisa kanye ne-MDOPE edumile yakamuva BOPE.
Kodwa-ke, ngokombono womnotho oyindilinga wokugaywa kabusha nokusetshenziswa kabusha, imigomo yokuklama ye-CEFLEX kanye ne-CGF yomnotho oyindilinga wokupakisha oguquguqukayo ibonakala ingenye yezinkomba zohlelo lokuvikela imvelo lokupakisha okuguquguqukayo.
Okokuqala, izinto eziningi zokupakisha eziguquguqukayo ziyi-PP impahla eyodwa, njengokupakishwa kwe-noodle esheshayo BOPP/MCPP, le nhlanganisela yezinto ezibonakalayo ingahlangabezana nempahla eyodwa yomnotho oyindilinga.
Okwesibili,ngaphansi kwezimo zezinzuzo zezomnotho, uhlelo lokuvikela imvelo lokupakishwa okuguquguqukayo lungenziwa ngendlela yokwakheka kokupakishwa kwento eyodwa (PP & PE) ngaphandle kwe-PET, i-de-nylon noma yonke impahla ye-polyolefin. Lapho izinto ezisekelwe ku-bio-based noma izinto ezivimbela imvelo ezinobungani bemvelo zivame kakhulu, izinto zokwakha ze-petrochemical kanye ne-aluminium foil zizoshintshwa kancane kancane ukuze kuzuzwe isakhiwo sephakheji elithambile elivumelana nemvelo.
Okokugcina, ngokombono wemikhuba yokuvikela imvelo nezici zezinto ezibonakalayo, izixazululo ezingaba khona kakhulu zokuvikela imvelo zokupakishwa okuguquguqukayo ukuklama izixazululo ezihlukene zokuvikela imvelo kumakhasimende ahlukene kanye nezidingo ezahlukene zokupakisha umkhiqizo, kunokuba isisombululo esisodwa, njenge-PE material eyodwa. , ipulasitiki ewohlokayo noma iphepha, elingasetshenziswa ezimweni ezihlukahlukene zokusetshenziswa. Ngakho-ke, kuphakanyiswa ukuthi esimisweni sokuhlangabezana nezidingo zokupakishwa komkhiqizo, impahla kanye nesakhiwo kufanele kulungiswe kancane kancane kuhlelo lwamanje lokuvikelwa kwemvelo olungabizi kakhulu. Uma uhlelo lokugaywa kabusha lusebenza kahle kakhulu, ukugaywa kabusha nokusetshenziswa kabusha kwamaphakheji aguquguqukayo kuyindaba eyiqiniso.
Isikhathi sokuthumela: Aug-26-2022