Ubomi bugcwele ukupakishwa okukhazimlayo, iibhotile zokuthambisa, izitya zeziqhamo kunye nokunye, kodwa uninzi lwazo zenziwe ngezinto ezinetyhefu nezingenakugcinwa zinegalelo kungcoliseko lweplastiki.
Kungekudala, abaphandi beYunivesithi yaseCambridge e-UK baye bafumanisa indlela yokudala i-glitter ezinzileyo, engeyona inetyhefu kunye ne-biodegradable evela kwi-cellulose, ibhloko enkulu yokwakha yeendonga zeeseli zezityalo, iziqhamo kunye nemifuno. Amaphepha anxulumeneyo apapashwa kwijenali yeMathiriyeli yeNdalo ngomhla we-11.
Yenziwe kwi-cellulose nanocrystals, le glitter isebenzisa umbala wesakhiwo ukuguqula ukukhanya ukuvelisa imibala eqaqambileyo. Ngokomzekelo, kwindalo, ukukhanya kwamaphiko ebhabhathane kunye neentsiba zepikoko zizinto ezibalaseleyo zombala wesakhiwo, ongayi kuphelelwa emva kwekhulu leminyaka.
Ukusebenzisa iindlela zokuzihlanganisa, i-cellulose inokuvelisa iifilimu ezinemibala eqaqambileyo, abaphandi bathi. Ngokulungisa isisombululo se-cellulose kunye neeparitha zokugqoka, iqela lophando lakwazi ukulawula ngokupheleleyo inkqubo yokuzimela, evumela ukuba izinto eziphathekayo zenziwe ngobuninzi kwii-rolls. Inkqubo yabo iyahambelana noomatshini abakhoyo beshishini. Ukusebenzisa izixhobo ze-cellulosic ezithengiswayo, kuthatha amanyathelo ambalwa kuphela ukuguqula ukunqunyanyiswa okuqulethe le glitter.
Emva kokuvelisa iifilimu zeselulosi ngomlinganiselo omkhulu, abaphandi bazigalela zibe ngamasuntswana ubukhulu bawo asetyenziselwa ukwenza i-glitter okanye i-pigment effect. Iipellets ziyabola, azinaplastiki, kwaye azinatyhefu. Ngaphaya koko, inkqubo inamandla angaphantsi kakhulu kuneendlela eziqhelekileyo.
Izinto zabo zingasetyenziselwa ukutshintsha amasuntswana akhazimlayo eplastiki kunye nebala leeminerali ezincinci ezisetyenziswa kakhulu kwizinto zokuthambisa. I-pigments yendabuko, efana ne-glitter powders esetyenziselwa ukusetyenziswa kwansuku zonke, zizinto ezingenakugcinwa kwaye zingcolisa umhlaba kunye nolwandle. Ngokuqhelekileyo, iiminerali ze-pigment kufuneka zifudunyezwe kubushushu obuphezulu obungama-800°C ukuze zenze amasuntswana e-pigment, nawo angayilungelanga indalo esingqongileyo.
Ifilimu ye-cellulose nanocrystal elungiselelwe liqela inokuveliswa kwinqanaba elikhulu ngokusebenzisa inkqubo "ye-roll-to-roll", njengokuba iphepha lenziwe kwi-pulp yokhuni, okwenza le mveliso ibe yinto yokuqala.
EYurophu, imboni yezithambiso isebenzisa malunga neetoni ze-5,500 ze-microplastics minyaka yonke. Umbhali ophezulu wephepha, uNjingalwazi Silvia Vignolini, ovela kwiSebe leYusuf Hamid kwiKhemistry kwiYunivesithi yaseCambridge, uthe bakholelwa ukuba imveliso inokuguqula imboni yezithambiso.
Ixesha lokuposa: Nov-22-2022