litaba

"Bophelo ba khabone e tlase" e fetohile sehlooho se seholo mehleng e ncha. Lilemong tsa morao tjena, ts'ireletso e tala ea tikoloho, paballo ea matla, le phokotso ea mosi li kene ponong ea sechaba butle-butle, 'me li fetohile mokhoa o mocha o buelloang le ho tsebahala haholoanyane sechabeng. Mehleng e tala le e tlaase ea carbon, tšebeliso ea lihlahisoa tse senyehang ka tlhaho e nkoa e le letšoao la bohlokoa la bophelo ba carbon e tlaase, 'me e hlomphuoa haholo le ho phatlalatsoa.

Ka ho potlakisa lebelo la bophelo, mabokose a lijo tsa motšeare a polasitiki a lahloang, mekotlana ea polasetiki, lithutsoana, linoelo tsa metsi le lintho tse ling li fetohile hohle bophelong. Ho fapana le pampiri, lesela le lisebelisoa tse ling, lihlahisoa tsa polasetiki li lahliloe ka tlhaho 'me ho thata ho senyeha. Leha e tlisa boiketlo bophelong ba batho, tšebeliso e feteletseng e ka boela ea baka “tšilafalo e tšoeu”. Tabeng ena, ho hlahile li-biomaterials tse ka senyehang. Lisebelisoa tse ka senyehang ke lintho tse hlahang tse nang le melemo e mengata ho latela ts'ebetso ea tikoloho ha li bapisoa le lihlahisoa tsa polasetiki tse lahloang. Lihlahisoa tse entsoeng ka li-biomaterials tse ka senyehang joalo ka lihlahisoa tse tala li na le sebaka se seholo sa mmaraka mme li fetoha sejari sa bohlokoa sa mohopolo oa feshene oa bophelo ba khabone e tlase.

Ho na le mefuta e mengata ea lisebelisoa tse ka senyehang, ho kenyelletsaPCL, PBS, PBAT, PBSA, PHA,PLGA, PLA, joalo-joalo Kajeno re tla tsepamisa maikutlo ho PLA ea lintho tse ntseng li tsoela pele ho senyeha.

PLA, e tsejoang hape e lepolylactic acidd, CAS 26023-30-3ke setache se tala se belisoang ho hlahisa lactic acid, e ntan'o fetoloa acid e polylactic ka motsoako oa lik'hemik'hale 'me e na le biodegradability e ntle. Ka mor'a ho sebelisoa, e ka senyeha ka ho feletseng ke likokoana-hloko tsa tlhaho, qetellong ea hlahisa carbon dioxide le metsi ntle le ho silafatsa tikoloho. Tikoloho e ntle haholo, 'me PLA e nkuoa e le thepa e baballang tikoloho e nang le thepa e ntle haholo ea baeloji.

Lisebelisoa tsa mantlha tsa PLA ke likhoele tsa semela tse nchafalitsoeng, poone le lihlahisoa tse ling tsa temo le tse ka thoko, 'me PLA ke lekala la bohlokoa la lisebelisoa tse hlahang tse ka senyehang. PLA e na le thepa e ikhethang mabapi le ho thatafala le pepeneneng. E na le biocompatibility e matla, mefuta e mengata ea ts'ebeliso, thepa e matla ea 'mele le mochini, mme e kopana le litlhoko tse fapaneng tsa ts'ebeliso. E ka sebelisoa ka mekhoa e fapaneng bakeng sa tlhahiso e kholo, e nang le tekanyo ea antibacterial ea 99.9%, e leng se etsang hore e be thepa e senyang ka ho fetisisa e tšepisang.

Polylactic acid (PLA)ke sesebediswa se secha se baballang tikoloho le se botala se bolang se hlahiswang ka lactic acid e le thepa e tala; Lilemong tsa morao tjena, PLA e 'nile ea sebelisoa ho lihlahisoa le masimo a kang litlhaka, tableware, thepa ea ho paka filimi, likhoele, masela, lisebelisoa tsa khatiso tsa 3D, joalo-joalo PLA e boetse e na le menyetla e mengata ea tsoelo-pele likarolong tse kang lisebelisoa tse thusang tsa bongaka, likarolo tsa likoloi, temo. , meru, le tšireletso ea tikoloho.

PLA e hlahisoang keIndasteri ea Unilongke eona e qetellang ka "karolo" e 'ngoe le e 'ngoe ea asiti ea polylactic. Ka khetho e tiileng ea lisebelisoa tsa boleng bo holimo tsa polylactic acid, polasetiki ea PLA polylactic acid le PLA polylactic acid fiber li sebelisoa ho hlahisa li-substitutes tsa polasetiki tse phetseng hantle, tse nang le botsoalle, tsa boleng bo holimo le tse matla tsa antibacterial. Lihlahisoa tsa eona tse ka sehloohong li kenyelletsa liaparo tsa sejoale-joale, lieta le likatiba, lisebelisoa tsa tafole, linoelo le liketlele, lintho tsa ho ngola, lintho tsa ho bapala, masela a lapeng, liaparo le marikhoe a koalang, thepa ea lapeng, lihlapa tse omeletseng le tse metsi, le masimo a mang a amanang haufi le bophelo ba rona ba letsatsi le letsatsi.

Ho hlaha haPLAe ka thusa batho ho lula hole le tšilafalo e tšoeu, ho fokotsa tšenyo ea polasetiki, le ho khothaletsa ts'ebetso e phethahetseng ea tlhoro ea carbon le ho se nke lehlakore ha carbon. Sepheo sa Indasteri ea Unilong ke ho “tsamaisana le lebelo la linako, ho phela bophelo bo se nang botsoalle ho tikoloho”, ho khothalletsa ka matla lihlahisoa tse senyehang, ho etsa hore batho ba je bophelo bo botle ’me ba phele bophelo bo botle, ho tlohella hore ho senyeha ho kene malapeng a likete, ho etelle pele mokhoa o mocha oa bophelo bo botala le khabone e tlase, le ho kena ka botlalo bophelong ba khabone e tlase.