Ipulasitiki, into esungulwe ngekhulu lama-20, ukubonakala kwayo kuye kwakhuthaza intuthuko yezimboni futhi kwashintsha ukuphila komuntu;ipulasitiki, ukusungulwa okubi ekhulwini lama-20, ukungcoliswa kwayo kanye nemiphumela emibi yemvelo akukakaxazululwa - izinzuzo zepulasitiki kanye nokubi kufana "nenkemba esika nhlangothi zombili" empilweni yangempela, inamandla ngokwanele , kodwa kuyingozi kakhulu.Futhi kithi, izindleko eziphansi, ukuzinza okushisayo, amandla emishini, ukucutshungulwa nokuhambisana kwamapulasitiki kwenza kube nzima ngathi ukungayisebenzisi ngokuphelele ekukhiqizeni imikhiqizo yethu, okuholela eqinisweni lokuthi nakuba siqonda ukuthi amapulasitiki angase asongela imvelo. , kodwa kusafanele sithembele kulokhu kwaziswa.Kungalesi sizathu futhi ukuthi "ukuvinjelwa" noma "ukushintsha" amapulasitiki sekuyisihloko sesikhathi eside emkhakheni wesayensi yezinto ezibonakalayo ukuze kuvikelwe imvelo.
Eqinisweni, le nqubo ayinayo imiphumela.Sekuyisikhathi eside ucwaningo "lokushintsha amapulasitiki" luqhubekile nokuthuthuka, futhi imiphumela eminingi ethembekile nesebenzayo iye yavela ngokulandelana, njengamaplastiki e-polylactic acid.Futhi muva nje, ithimba labacwaningi abavela eSikoleni Sesayensi Eyisisekelo e-Swiss Federal Institute of Technology e-Lausanne lenze ipulasitiki etholakala nge-biomass efana ne-polyethylene terephthalate (PET).Le nto entsha inezinzuzo zamapulasitiki endabuko njengokuzinza okushisayo okuqinile, amandla athembekile emishini, kanye nepulasitiki eqinile.Ngesikhathi esifanayo, inqubo yokukhiqiza nayo ihambisana kakhulu nemvelo.Kubikwa ukuthi impahla entsha yepulasitiki ye-PET isebenzisa i-glyoxylic acid ekwenzeni ipulasitiki, okulula ukuyisebenzisa, kodwa ingaguqula u-25% wemfucuza yezolimo noma u-95% kashukela omsulwa ube yipulasitiki.Ngaphezu kokuba lula ukukhiqiza, le nto iphinde ibe sengozini yokuwohloka ngenxa yesakhiwo sayo sikashukela esingaguquki.
Kuyafaneleka ukusho ukuthi okwamanje, abacwaningi baye bacubungula ngempumelelo le nto emikhiqizweni evamile yepulasitiki njengamafilimu okupakisha, futhi baye bafakazela ukuthi ingasetshenziswa njengendlela yokuphrinta ye-3D (okungukuthi, ingenziwa ibe imicu yokuphrinta kwe-3D. ), ngakho-ke sinesizathu sokulindela ukuthi lokhu okubalulekile kube nezimo zohlelo ezibanzi esikhathini esizayo.
Isiphetho: Ukwakhiwa kwezinto zepulasitiki kuyinqubo yokuxazulula ukungcoliswa kwepulasitiki okuvela emthonjeni wokuvikela imvelo.Nokho, ngokombono wabantu abavamile, empeleni, umthelela walokhu kuthuthukiswa kithi ungaphezu kokuthi amathuluzi avamile ekuphileni aqala ukushintsha.Ngokuphambene, kusukela ezimpilweni zethu, uma sifuna ngempela ukuxazulula ukungcola kwepulasitiki okuvela emthonjeni, mhlawumbe okubaluleke nakakhulu, ukugwema ukuhlukunyezwa nokulahlwa kwamapulasitiki, ukuqinisa ukuphathwa kokuvuselelwa kabusha nokuqondisa kwemakethe, nokuvimbela ukungcola ukuthi kugeleze emvelweni.
Isikhathi sokuthumela: Aug-15-2022