Izazinzulu ezivela eJamani naseNetherlands zenza uphando olutsha oluhambelana nokusingqongileyoI-PLAizixhobo. Injongo kukuphuhlisa izinto ezizinzileyo zezicelo ze-optical ezifana nezibane zemoto, iilensi, iiplastiki ezikhanyayo okanye izikhokelo ezikhanyayo. Okwangoku, ezi mveliso zenziwe ngokubanzi nge-polycarbonate okanye i-PMMA.
Izazinzulu zifuna ukufumana iplastiki esekwe kwibhayoloji ukwenza izibane zemoto. Kuvela ukuba i-polylactic acid yinto efanelekileyo yomviwa.
Ngale ndlela, izazinzulu ziye zasombulula iingxaki ezininzi ezijongene neeplastiki zemveli: okokuqala, ukuguqula ingqalelo kwimithombo ehlaziyiweyo kunokunciphisa ngokufanelekileyo uxinzelelo olubangelwa yioli ekrwada kwishishini leplastiki; okwesibini, inokunciphisa ukukhutshwa kwekharbon diokside; okwesithathu, oku Kubandakanya ukuqwalaselwa kwawo wonke umjikelo wobomi bezinto eziphathekayo.
"Akukhona nje kuphela ukuba i-polylactic acid ineenzuzo ngokuzinza, nayo ineempawu ezintle kakhulu ze-optical kwaye ingasetyenziselwa kwi-spectrum ebonakalayo yamaza e-electromagnetic," kusho uDkt. Klaus Huber, uprofesa kwiYunivesithi yasePaderborn eJamani.
Okwangoku, enye yobunzima oboyisayo izazinzulu kukusetyenziswa kwe-polylactic acid kwiinkalo ezinxulumene ne-LED. I-LED yaziwa njengomthombo wokukhanya osebenzayo kunye nokusingqongileyo. "Ngokukodwa, ubomi benkonzo ende kakhulu kunye nemitha ebonakalayo, njengokukhanya okuluhlaza kwezibane ze-LED, kubeka iimfuno eziphezulu kwizinto ezibonakalayo," kuchaza uHuber. Yiyo loo nto kufuneka kusetyenziswe imathiriyeli eyomelele kakhulu. Ingxaki yile: I-PLA ithambile malunga ne-60 degrees. Nangona kunjalo, izibane ze-LED zinokufikelela kumaqondo obushushu ukuya kuma-80 degrees ngelixa usebenza.
Obunye ubunzima obungumngeni yikristale ye-polylactic acid. Iasidi yePolylactic yenza iikristale malunga needigri ezingama-60, eziphazamisa izinto. Izazinzulu zazifuna ukufumana indlela yokuphepha le crystallization; okanye ukwenza inkqubo ye-crystallization ilawuleke ngakumbi - ukwenzela ukuba ubukhulu beekristali ezibunjiweyo aziyi kuchaphazela ukukhanya.
Kwilabhoratri yasePaderborn, izazinzulu zaqala zamisela iipropathi zemolekyuli ze-polylactic acid ukwenzela ukuguqula izinto eziphathekayo, ngokukodwa ukunyibilika kwayo kunye ne-crystallization. U-Huber unoxanduva lokuphanda ubungakanani bezongezo, okanye amandla emitha, anokuphucula iipropathi zezinto. "Sakha inkqubo yokusabalalisa ukukhanya kwe-angle encinci ngokukodwa kule nto yokufunda ukubunjwa kwe-crystal okanye iinkqubo zokunyibilika, iinkqubo ezinempembelelo enkulu kumsebenzi we-optical," kusho u-Huber.
Ukongeza kulwazi lwezesayensi kunye nobuchwepheshe, iprojekthi inokunikezela ngeenzuzo ezibalulekileyo zezoqoqosho emva kokuphunyezwa. Iqela lilindele ukunikezela ngephepha lalo lokuqala leempendulo ekupheleni kuka-2022.
Ixesha lokuposa: Nov-09-2022