Ingabe ipulasitiki ye-PE iphephile ekudleni?

Ipulasitiki ye-Polyethylene (PE), into evame ukusetshenziswa ekupakisheni ukudla, ithole ukunakwa ngenxa yokuguquguquka kwayo nokuphepha kwayo. Ipulasitiki ye-PE iyi-polymer eyakhiwe ngamayunithi e-ethylene, eyaziwa ngokuzinza kwayo kanye nokungashintshi kwayo. Lezi zakhiwo zenza i-PE ibe ukukhetha okuhle kokusetshenziswa kwesigaba sokudla, njengoba ingangenisi amakhemikhali ayingozi ekudleni, ngisho noma ivezwe emazingeni okushisa ahlukene.

Izifundo Zokuphepha Nemithethonqubo

Ucwaningo olunzulu kanye nemithethonqubo eqinile iqinisekisa ukuthi ipulasitiki ye-PE yezinga lokudla iphephile ukuthintana nokudla. Izifundo zibonise ukuthi ipulasitiki ye-PE ayikhiphi izinto eziyingozi ngaphansi kwezimo ezijwayelekile zokusetshenziswa. Izinhlangano ezilawulayo ezifana ne-US Food and Drug Administration (FDA) kanye ne-European Food Safety Authority (EFSA) zimise iziqondiso nezindinganiso okumele zihlangabezane nazo ipulasitiki ye-PE ukuze zihlukaniswe njengezinga lokudla. Lezi zindinganiso zifaka phakathi ukuhlolwa kokufuduka kwamakhemikhali, ukuqinisekisa ukuthi noma yikuphi ukudluliselwa kwezinto kusuka epulasitikini kuya ekudleni kuhlala ngaphakathi kwemingcele ephephile.

Izicelo Ezivamile Ekupakisheni Ukudla

Ipulasitiki ye-PE isetshenziswa kabanzi ezinhlotsheni ezahlukene zokupakisha ukudla, okuhlanganisaIzikhwama ze-PE, izikhwama ze-zipper, futhiizikhwama ze-ziplockLezi zixazululo zokupakisha zinikeza ukumelana okuhle kakhulu nomswakama, ukuguquguquka, kanye nokuqina, okwenza zifaneleke ukugcina imikhiqizo eminingi yokudla. Izikhwama ze-PE, isibonelo, zivame ukusetshenziselwa imikhiqizo emisha, ukudla okulula, kanye nokudla okuqandisiwe ngenxa yamandla azo okugcina ubusha nokwandisa isikhathi sokuphila.

Ukuqhathaniswa Nezinye Izinto Zopulasitiki

Uma kuqhathaniswa namanye amapulasitiki, njenge-polyvinyl chloride (PVC) kanye ne-polystyrene (PS), ipulasitiki ye-PE ibhekwa njengephephile futhi enobungani nemvelo. I-PVC, isibonelo, ingakhipha amakhemikhali ayingozi njenge-phthalates kanye ne-dioxin, ikakhulukazi uma ishiswa. Ngokuphambene nalokho, isakhiwo samakhemikhali esilula sepulasitiki ye-PE kanye nokuqina kwayo kwenza kube ukukhetha okuthandwayo kokupakisha ukudla, njengoba kubeka engcupheni encane yokungcola.

Ukusekela Idatha Nocwaningo

Idatha evela ezifundweni zemboni isekela ukuphepha kwepulasitiki ye-PE. Isibonelo, ucwaningo olwenziwe yi-EFSA luthole ukuthi ukufuduka kwezinto ezivela epulasitiki ye-PE ziye ekudleni kwakungaphakathi kwemingcele yokuphepha emisiwe. Ngaphezu kwalokho, ukuphindeka kabusha okuphezulu kwepulasitiki ye-PE kuthuthukisa ukukhanga kwayo, njengoba ingacutshungulwa ngempumelelo ibe yimikhiqizo emisha, kunciphisa umthelela emvelweni.

Ekuphetheni,Izikhwama ze-PE, izikhwama ze-zipper, futhiizikhwama ze-ziplockezenziwe ngepulasitiki ye-PE yezinga lokudla ziyizinketho eziphephile nezithembekile zokupakisha ukudla. Ukuqina kwazo kwamakhemikhali, ukuhambisana nezindinganiso zokuphepha, kanye nokusetshenziswa kabanzi embonini kuzenza zibe inketho enhle kakhulu kubathengi abafuna ukugcina nokuvikela ukudla kwabo. Ukuze uthole ulwazi olwengeziwe ngepulasitiki ye-PE kanye nokusetshenziswa kwayo, sicela ubheke izinsiza ezinikeziwe.