E masani ona vaevaeina mea fa'aleagaina i ni vaega se fa: palasitika photodegradable, palasitika biodegradable, palasitika ata/biodegradable ma palasitika fa'aleaga vai.Photodegradable plastics o photosensitizers fa'afefiloi i totonu o palasitika.I lalo o le gaioiga o le susulu o le la, o palasitika e faasolosolo malie ona pala.Ae o lona le lelei o le taimi faʻaleagaina e afaina i le susulu o le la ma le siosiomaga o le tau, o lea e le mafai ai ona pulea.O palasitika biodegradable e faasino i palasitika e mafai ona pala i vaega mole mole maualalo e meaola ninii o loʻo iai i le natura, e pei o siama, limu, ma algae i lalo o nisi tulaga.O ia palasitika e faigofie ona teuina ma felauaiga, ma e iai le tele o faʻaoga.O palasitika mama/biodegradable o palasitika ia e tu'ufa'atasia uiga lua o palasitika fa'amalama ma palasitika fa'aola.I le taimi nei, o palasitika biodegradable ua atiaʻe i loʻu atunuu e masani lava o biopolyesters pei ole polylactic acid (PLA), polyhydroxyalkanoate (PHA), carbon dioxide copolymer (PPC) ma isi.O le Polylactic acid (PLA) e faia e ala i le polymerization o lactide monomers e maua mai i suka laau, ma e mafai ona faʻaleagaina atoa i le vai ma le carbon dioxide i lalo o le gaosiga o fale gaosi oloa.Polyhydroxyalkanoates (PHA) o aliphatic copolyesters ma fausaga eseese faʻapipiʻiina e ala i le faʻafefeteina o punaoa carbon eseese e microorganisms.E le gata e mafai ona faʻaaogaina i mea faʻapipiʻi, ata faʻatoʻaga, ma isi, ae faʻaaogaina lautele i vailaʻau, mea teuteu, ma meaʻai manu ma isi fanua.O palasitika e mafai ona fa'aleagaina le vai o palasitika ia e mafai ona fa'amavae i totonu o le vai ona o le fa'aopoopoina o mea e mitiia vai.Faatasi ai ma le atinaʻeina o biotechnology faʻaonaponei, ua avea palasitika biodegradable ma nofoaga vevela fou i suʻesuʻega ma atinaʻe.
I totonu o Saina, e le'o lava le matua o mea fa'atekonolosi biodegradable o lo'o i ai nei, ma o le ai ai ni mea fa'aopoopo.Afai e faʻaopoopoina nei mea faʻaopoopo, o mea palasitika o le a le ausia le aʻafiaga o le biodegradation.Afai e le faʻaopoopoina, o lenei mea palasitika o le a pala i lalo o soʻo se tulaga, aemaise lava i nofoaga vevela maualuga, o lea e matua faigata ai ona teuina.
E le gata i lea, o le faʻaaogaina o mea e mafai ona faʻaleagaina e gaosia ai oloalimumana'omia ni suiga fa'apitoa.
Taimi meli: Iul-08-2021