Ngaba i-PLA Biodegradable?
•I-Polylactic acid, ekwabizwa ngokuba yi-PLA, ikhona iminyaka emininzi. Nangona kunjalo, abavelisi abakhulu be-PLA basandula kungena kwimarike emva kokuba befumene inkxaso-mali kwiinkampani ezinkulu ezinomdla wokutshintsha iiplastiki zokwenziwa. Ke, ngaba i-PLA iyabola?
•Ngelixa impendulo ingekho lula, sigqibe kwelokuba sinikeze ingcaciso kwaye sicebise ukufunda ngakumbi kwabo banomdla. I-PLA ayiboli, kodwa yonakala. Ii-Enzymes ezinokophula i-PLA azifane zifumaneke kwindawo esingqongileyo. Iproteinase K yi-enzyme eyenza ukuthotywa kwe-PLA nge-hydrolysis. Abaphandi abanjengoWilliams ngo-1981 kunye noTsuji kunye noMiyauchi kwi-2001 bahlolisise umba wokuba i-PLA i-biodegradable. Iziphumo zabo zixutyushwa kwincwadi ethi Biomaterials Science: An Introduction to Medical Materials kwaye iboniswe kwintlanganiso ye-European Biomaterials Society. Ngokwale mithombo, i-PLA ilawulwa ngokukodwa nge-hydrolysis, ezimeleyo kuyo nayiphi na i-biologic agents. Ngelixa abantu abaninzi benokucinga ukuba i-PLA iyabola, kubalulekile ukuyiqonda le nto.
•Enyanisweni, i-hydrolysis ye-PLA nge-proteinase K inqabile kangangokuba ayibalulekanga ngokwaneleyo ukuba ixoxwe ngakumbi kwisayensi ye-biomaterial. Siyathemba ukuba oku kucacisa imiba ejikeleze ukonakaliswa kwezinto eziphilayo ze-PLA kwaye siya kuqhubeka neenzame zethu zokubonelela ngezona zisombululo zingcono kwiimfuno zakho zeplastiki ezinobungani bendalo kunye ne-biodegradable.
In isiphelo:
I-PLA yiplastiki enokubola esetyenziswa kakhulu kwizinto zemihla ngemihla ezifana neengxowa ezilahlwayo kunye neekomityi. Nangona kunjalo, inokuthotywa kuphela kwindawo yokwenziwa komgquba kwimizi-mveliso okanye i-anaerobic digestion, isenza ukonakaliswa kwindawo eqhelekileyo yendalo ibe ngumngeni. Uphononongo luqinisekisile ukuba i-PLA ithoba kancinci kwindawo yaselwandle.
Ixesha lokuposa: Nov-01-2023
