Muva nje, izikhwama zepulasitiki ezibolayo zithandwa kakhulu, futhi amazinga ahlukahlukene wokuvinjelwa kwepulasitiki asungulwe emhlabeni jikelele, futhi njengenye yezinhlobo eziyinhloko zezikhwama zepulasitiki ezibolayo, i-PLA ngokwemvelo ingenye yezinto ezibalulekile ezibalulekile.Masilandele eduze umkhiqizi wezikhwama zokupakisha onguchwepheshe we-TOP PACK ukuze siqonde izikhwama zepulasitiki ezibolayo ze-PLA.
- Iyini i-PLA futhi yenziwe ngani?
I-PLA iyi-polymer (i-polylactic acid) eyakhiwe ngamayunithi amancane e-lactic acid.I-Lactic acid iyi-asidi ephilayo edlala indima ebalulekile ekuphileni kwethu kwansuku zonke.I-yogurt esivame ukuyiphuza noma yini ene-glucose ingashintshwa ibe yi-lactic acid, kanti i-lactic acid ye-PLA consumables ivela kummbila, owenziwe ngempahla eluhlaza yesitashi ekhishwe emmbila.
Njengamanje, i-PLA ingenye yezinto ezivame ukusetshenziswa ezikhwameni zepulasitiki ezibolayo, inesici esiyingqayizivele: I-PLA ingenye yezinto ezibolayo ezingenabuthi, izinto zayo zokusetshenziswa ezivela emvelweni.
- Izinga lokuwohloka kwe-PLA lincike kuphi?
Inqubo ye-biodegradation kanye nobude bayo kuncike kakhulu endaweni ezungezile.Isibonelo, ukushisa, umswakama, kanye namagciwane Ukungcwaba i-PLA izikhwama zepulasitiki ezingaboli ngokuphelele ekujuleni kwenhlabathi kungabangela izimpawu zokubola esikhathini esiyizinyanga eziyisithupha.
Futhi izikhwama zepulasitiki ezibolayo ze-PLA zithatha isikhathi eside ukuwohloka ekamelweni lokushisa nangaphansi kwengcindezi.Egunjini elijwayelekile, ukucekelwa phansi kwezikhwama zepulasitiki ezibolayo ze-PLA kuzohlala isikhathi eside.Ukukhanya kwelanga ngeke kusheshise ukuwohloka kwezinto eziphilayo (ngaphandle kokushisa), futhi ukukhanya kwe-UV kuzobangela kuphela okokusebenza ukuthi kulahlekelwe umbala futhi kuphaphatheke, okuwumphumela ofanayo namapulasitiki amaningi.
Izinzuzo zokusebenzisa izikhwama zepulasitiki ezibolayo ze-PLA
Emlandweni wesintu, izikhwama zepulasitiki zilula kakhulu futhi zihle ukuzisebenzisa, okuholela ekutheni abantu bebelokhu bengakwazi ukuhlukaniswa nezikhwama zepulasitiki ekuphileni kwabo kwansuku zonke.Ukunethezeka kwezikhwama zepulasitiki kuholela abantu ukuba bakhohlwe ukuthi ukusungulwa kokuqala kwezikhwama zepulasitiki akuyona into elahlayo, evame ukusetshenziswa kanye futhi ilahlwe.Kodwa abantu abaningi abazi ukuthi impahla eluhlaza eyinhloko yokukhiqiza izikhwama zepulasitiki i-polyethylene, okunzima kakhulu ukuyinciphisa.Inqwaba yezikhwama zepulasitiki ezilahliwe zingcwatshwa emhlabathini, okuzoholela endaweni enkulu ngenxa yokungcwatshwa kwezikhwama zepulasitiki nokusebenza isikhathi eside.Lokhu ukungcola okumhlophe.Lapho abantu besebenzisa izikhwama zepulasitiki ukuze bathenge izikhwama zepulasitiki ezingaboli, le nkinga izoxazululeka.I-PLA ingenye yamapulasitiki avame ukubola futhi iyipolymer eyenziwe nge-lactic acid, okuwumkhiqizo ongangcolisi futhi obolayo.Ngemuva kokusetshenziswa, i-PLA ingavundiswa futhi yehliselwe ku-carbon dioxide namanzi emazingeni okushisa angaphezu kuka-55°C noma ngesenzo sama-microorganisms anothile komoyampilo ukuze kuzuzwe umjikelezo wezinto ezibonakalayo emvelweni.Uma kuqhathaniswa no-d wokuqala wezikhwama zepulasitiki ezijwayelekile, izikhwama zepulasitiki ezibolayo zidinga izinyanga ezimbalwa kuphela ukuqeda ukucekelwa phansi kwesikhathi.Lokhu kunciphisa ukumoshwa kwemithombo yomhlaba ngokwezinga elikhulu futhi akunawo umthelela emvelweni.Ngaphezu kwalokho, izikhwama zepulasitiki ezijwayelekile ohlelweni lokukhiqiza zizodla izinto zokubasa ezimbiwa phansi, kuyilapho izikhwama zepulasitiki ezibolayo zizonciphisa cishe ingxenye yezinto zokubasa ezimbiwa phansi kunayo.Isibonelo, ukube yonke imikhiqizo yepulasitiki emhlabeni ibithathelwa indawo izikhwama zepulasitiki ezibolayo ngonyaka, bekuzokonga cishe imiphongolo yemfucumfucu eyizigidi eziyizinkulungwane eziyi-1.3 ngonyaka, okucishe kube yingxenye yokusetshenziswa kukaphethiloli emhlabeni jikelele.Ububi be-PLA yizimo zokwehliswa kwesithunzi ezinzima.Nokho, ngenxa yezindleko eziphansi ze-PLA ezintweni zezikhwama zepulasitiki ezingaboli, ukusetshenziswa kwe-PLA kuhamba phambili.
Isikhathi sokuthumela: Mar-17-2023