Asayansi ochokera ku Germany ndi Netherlands akufufuza zatsopano zosamalira chilengedwePLAzipangizo. Cholinga chake ndikupanga zipangizo zokhazikika zogwiritsira ntchito kuwala monga magetsi a magalimoto, magalasi, mapulasitiki owunikira kapena malangizo a kuwala. Pakadali pano, zinthuzi nthawi zambiri zimapangidwa ndi polycarbonate kapena PMMA.
Asayansi akufuna kupeza pulasitiki yopangidwa ndi zamoyo kuti ipange magetsi a galimoto. Zapezeka kuti polylactic acid ndi chinthu choyenera kugwiritsidwa ntchito.
Kudzera mu njira imeneyi, asayansi athetsa mavuto angapo omwe mapulasitiki akale amakumana nawo: choyamba, kuyang'ana kwambiri zinthu zongowonjezwdwanso kungachepetse bwino kukakamizidwa komwe kumachitika chifukwa cha mafuta osakonzedwa pamakampani opanga mapulasitiki; chachiwiri, kungachepetse kutulutsa kwa carbon dioxide; chachitatu, izi zikuphatikizapo kuganizira za moyo wonse wa zinthu.
"Sikuti asidi wa polylactic ali ndi ubwino wokhazikika, komanso ali ndi mphamvu zabwino kwambiri zowunikira ndipo angagwiritsidwe ntchito m'mafunde amagetsi owoneka bwino," akutero Dr. Klaus Huber, pulofesa ku University of Paderborn ku Germany.
Pakadali pano, chimodzi mwa zovuta zomwe asayansi akugonjetsa ndi kugwiritsa ntchito polylactic acid m'magawo okhudzana ndi LED. LED imadziwika kuti ndi gwero lothandiza komanso lopanda chilengedwe. "Makamaka, nthawi yayitali yogwira ntchito komanso kuwala kowoneka bwino, monga kuwala kwabuluu kwa nyali za LED, kumafuna zinthu zowala kwambiri," akutero Huber. Ichi ndichifukwa chake zinthu zolimba kwambiri ziyenera kugwiritsidwa ntchito. Vuto ndilakuti: PLA imakhala yofewa pa madigiri pafupifupi 60. Komabe, magetsi a LED amatha kufika kutentha kofika madigiri 80 pamene akugwira ntchito.
Vuto lina lovuta ndi kupangika kwa polylactic acid. Polylactic acid imapanga ma crystallites pa madigiri pafupifupi 60, zomwe zimapangitsa kuti zinthuzo zisamawoneke bwino. Asayansi ankafuna kupeza njira yopewera kupangika kwa crystallites kumeneku; kapena kuti njira yopangika kwa crystallites ikhale yosavuta kulamulira - kotero kuti kukula kwa ma crystallites omwe adapangidwawo kusakhudze kuwala.
Mu labotale ya Paderborn, asayansi choyamba adazindikira momwe mamolekyu a polylactic acid amagwirira ntchito kuti asinthe mawonekedwe a chinthucho, makamaka momwe chimasungunukira komanso momwe chimakhalira ndi makristalo. Huber ali ndi udindo wofufuza momwe zowonjezera, kapena mphamvu ya radiation, zingathandizire kukonza mawonekedwe a zinthuzo. "Tinapanga njira yogawa kuwala yaing'ono makamaka kuti izi ziphunzire mapangidwe a makristalo kapena njira zosungunula, njira zomwe zimakhudza kwambiri ntchito ya kuwala," adatero Huber.
Kuwonjezera pa chidziwitso cha sayansi ndi ukadaulo, pulojekitiyi ikhoza kupereka phindu lalikulu pazachuma ikatha kugwiritsidwa ntchito. Gululi likuyembekeza kupereka pepala lake loyamba la mayankho pofika kumapeto kwa chaka cha 2022.
Nthawi yotumizira: Novembala-09-2022