Ngokuthuthuka komphakathi wesintu, isidingo semikhiqizo yepulasitiki empilweni ye-People's Daily siyakhula, njengezikhwama zepulasitiki, amathileyi epulasitiki, amabhokisi esidlo sasemini epulasitiki njalo njalo. Okwamanje, ukwanda kwemboni yokulethwa kokudla kwandisa isidingo semikhiqizo yepulasitiki. Lesi sidingo sinomthelela omkhulu emvelweni yethu, ngoba imikhiqizo yepulasitiki iyingozi kakhulu emvelweni.
Njengoba kubhekene nezinkinga zemvelo ezikhulayo, ukufuna ezinye izindlela esikhundleni sepulasitiki sekuyinto evamile emhlabeni wonke. Ngemva kocwaningo oluqhubekayo kanye nokuthuthukiswa, imikhiqizo ye-PLA iye yangena kancane kancane esigabeni somlando. Imikhiqizo ye-PLA inomsebenzi wokuwohloka, ongonakaliswa ngokuphelele zingakapheli izinsuku ezingu-90 ekushiseni okufanelekile kanye nendawo ezungezile. Ngesikhathi esifanayo, futhi inokuphila isikhathi eside kwenkonzo, igcinwe kahle, ithreyi ye-PLA kanye nesitsha se-PLA kanye neminye imikhiqizo ingagcinwa isikhathi esingaphezu konyaka owodwa.
Amathreyi Nama-Container Angabola Kabusha Ezinto Ze-PLA Ezinobungani Nemvelo Okupakisha Ukudla Kwenyama Yezithelo
I-Poly (i-lactic acid) inamandla okuqina kokushisa, izinga lokushisa lokucubungula lingu-170 ~ 230℃, ukumelana okuhle kwe-solvent, ingacutshungulwa ngezindlela ezahlukahlukene, njengokukhipha, ukuphotha, ukwelula i-biaxial, ukubumba ngomjovo. Ngaphezu kokubola, imikhiqizo ye-polylactic acid inokuhambisana okuhle kwe-bio, ukukhanya, ukucaca, ukuzwa kwesandla kanye nokumelana nokushisa.
I-Polylactic acid (PLA) iyinto entsha ebolayo eyenziwe ngesitashi esithathwe ezitshalweni ezivuselelekayo njengommbila. I-glucose itholakale ngesitashi ngokuyisusa, bese kuthi i-lactic acid ehlanzekile kakhulu ibiliswe nge-glucose kanye nezinhlobo ezithile, bese kuthi i-polylactic acid enesisindo esithile sama-molecule yenziwe ngokwenziwa kwamakhemikhali. Inokonakala okuhle, futhi ingabola ngokuphelele yizinto ezincane zemvelo ngemuva kokusetshenziswa, futhi ekugcineni ikhiqize i-carbon dioxide namanzi. Ayingcolisi imvelo, okuzuzisa kakhulu ekuvikeleni imvelo, futhi ibhekwa njengento enobungani nemvelo. Indlela evamile yokwelapha ipulasitiki isashisa, okuholela enanini elikhulu legesi yokushisa igesi ekhishwa emoyeni, kuyilapho ipulasitiki ye-POLylactic acid ingcwatshwe ekuwohlokeni kwenhlabathi, i-carbon dioxide ngqo enhlabathini yezinto eziphilayo noma ezimuncwa yizitshalo, ngeke ikhishwe emoyeni, ngeke ibangele umphumela wokushisa igesi.
I-Poly (i-lactic acid) inenzuzo eyingqayizivele emkhakheni wezitsha ezilahlwayo, izinto zokupakisha ukudla kanye neminye imikhiqizo elahlwayo ngoba ayinangozi nhlobo emzimbeni womuntu. Ingabola ngokuphelele futhi ihlangabezane nezidingo eziphezulu zomhlaba, ikakhulukazi i-European Union, i-United States kanye ne-Japan zokuvikela imvelo. Ngaphezu kwalokho, ngemva kwentuthuko yezobuchwepheshe, imakethe ishintshwe ngezinto ze-PLA, ezinganqoba ngempumelelo ukushiyeka kwezinhlayiya zokuqala, kanti ezinye ngisho nokushisa okumelana nokushisa okufika ku-120℃, zingasetshenziswa njengezinto zokusetshenziswa ze-microwave oven.
Kodwa-ke, ngokwemakethe yamanje, ukufudumala kanye nekhono lokusha kwemikhiqizo ye-PLA akunakulinganiswa neminye imikhiqizo eyonakalayo, kodwa intengo yemikhiqizo ye-PLA iphakeme kuneminye imikhiqizo eyonakalayo. Abantu abaningi bakhetha i-bagasse njengomkhiqizo obolayo, kodwa i-bagasse imunca uwoyela, imunca amanzi, futhi ithinta imikhiqizo epakishiwe. Futhi ama-bagasse pallets angaba nesikhunta uma engomi ngokwanele.
Isikhathi sokuthunyelwe: Jan-12-2022