Utshani obubolayo sebuyasetshenziswa ezindaweni eziningi zokudla ezinkulu esikhundleni sotshani bepulasitiki.Ukugqugquzelwa kanye nokusetshenziswa kotshani obubolayo kunokubaluleka okubalulekile.Njengamanje, abantu bajwayelene nama-straw, asetshenziswa ezimbonini zokudla eziningi ezahlukene.Njengoba kunikezwe ukuthi izitsha zepulasitiki zingaphansi kwezinkinga ezithile zemvelo kanye nokuchithwa kwezinsiza, zikhathazeke kakhulu yizo zonke izinhlaka.Eqinisweni, utshani bephepha kanyeama-biodegradable straws kokubili imvelo friendly ngokwemvelo, kodwa amaphepha straws kulula ukuthambisa for iziphuzo ezishisayo futhiama-biodegradable strawszizuzisa kakhulu.

Njengamanje, enye impahla evumelana nemvelo yezitsha zepulasitiki ibizwa ngokuthi i-PLA, noma “i-polylactic acid”.Kuyipulasitiki ebolayo engakhishwa kusitashi sombila.I-PLA ikhiqizwa nge-lactic acid, okuyizinto ezingavuthiwe zokuvutshelwa kwe-lactic acid, bese isetshenziselwa ukukhiqiza i-PLA.Inqubo ethile yokukhiqiza iwukuchoboza ummbila, kukhishwe isitashi kuwo, bese kwenziwa i-glucose engahluziwe esitashini, bese kubilisa i-glucose ngendlela efana nokukhiqizwa kotshwala, futhi ngemva kokuba i-glucose ivutshiwe, iba yi-lactic acid efana isithasiselo sokudla, futhi i-lactic acid iguqulwa ibe umkhiqizo ophakathi ngenqubo yokuhlushwa ekhethekile ye-lactic acid ngayinye.

I-PLAama-biodegradable strawsbabe nokubola okuhle kwemvelo, ukuwohloka kukhiqiza i-CO2 ne-H2O, akukho ukungcoliswa kwemvelo, futhi kungahlangabezana nezidingo zokwenziwa komquba wezimboni.Ngemuva kokukhishwa kwezinga lokushisa eliphezulu, utshani bukwazi ukumelana nokushisa okuhle, ukumelana kahle kwe-solvent, futhi ukushelela kwayo, ukudluliswa kokukhanya, kanye nezakhiwo zokuzizwa zezandla kungathatha indawo yemikhiqizo esekwe kuphethiloli, futhi izinkomba ezibonakalayo nezamakhemikhali zemikhiqizo zingahlangabezana nezidingo zokuphepha kokudla. emhlabeni jikelele.Ngakho-ke, isetshenziswa kabanzi futhi ingakwazi ukuzivumelanisa nezidingo zeziphuzo eziningi emakethe yamanje.

Njengesiphuzo sephepha lezimpahla zotshani, ezisetshenziswa embonini yokudla kanye nokukhiqizwa kwezimboni zesiphuzo sezempilo, ukuze sikwazi ukukushintsha ngokuphelele, uhla lwesicelo sokuqala sotshani bepulasitiki, nabakhiqizi bezobuchwepheshe bokucubungula amashubhu ephepha ngokuya ngemithethonqubo ehlukene yamakhasimende, abakhiqizi bangakwazi ngokusekelwe ezinhlinzekweni eziqondile zawo wonke umuntu ukwenza izixazululo zedizayini nokukhiqiza nokucubungula.Ngakho-ke, hhayi ubude nobubanzi botshani kuphela, kodwa futhi nombala nomklamo wephethini, konke okunjalo kungaklanywa futhi kuxazululwe.