PLA, eo hape e tsejoang ka hore ke polylactic acid e entsoeng ka polymerized ho tsoa ho poly lactic acid.Polylactic acid e na le biodegradability e ntle haholo, e tsamaellana le ho monya, ke ntho e seng chefo, e seng ea maiketsetso ea polymer material .lts raw material is polylactic acid, eo haholo-holo e nkiloeng ho belisoa ha starch, joalo ka com le rc .E ka boela ea fumanoa ka selulose, litšila tsa kichineng kapa litšila tsa tlhapi.
PLA e na le mefuta e mengata ea lihlahisoa tse tala, 'me lihlahisoa tse entsoeng ho eona li ka koaheloa ka ho toba kapa tsa chesoa, tse ka finyellang litlhoko tsa tsoelo-pele e tsitsitseng Ponaletso e ntle le ho tiea ho itseng, bio-compatibility le ho hanyetsa mocheso oa PLA ke mabaka a ka sehloohong. bakeng sa ts'ebeliso ea eona e atileng.
ho feta moo, PLA e na le thermal-plasticity mme e ka sebelisoa masimong a mangata, joalo ka thepa ea ho paka, li-filler, joalo-joalo.
Ha ho bapisoa le lihlahisoa tsa petrochemical tsa setso, tšebeliso ea matla ha ho etsoa polylactic acid ke feela 20% ho 50% ea lihlahisoa tsa petrochemical, 'me carbon dioxide e hlahisoang ke 50% feela ea lihlahisoa tsa petrochemical. ho fokotsa mathata a lefats'e a tikoloho le matla.
Likarolo tsa likarolo tsa PLA
1.Biodegradability
Ha ho bapisoa le lipolasetiki tsa setso, asiti ea polylactic e ka senyeha ho ba CO2 le H2O ka likokoana-hloko le leseli.Lihlahisoa tsa bio-degradation ha li na chefo ebile ha li na kotsi 'me li ke ke tsa silafatsa tikoloho.Monoma bakeng sa ho hlahisa polylactic, e ka belisoang ke lijalo tse kang raese ea koro le beet ea tsoekere kapa lihlahisoa tsa mofuta oa temo.Ka hona, thepa e tala ea ho hlahisa acid e polylactic e ka tsosolosoa.Polylactic acid e le lintho tse ntseng li hlaha tse ka senyehang li sebelisoa haholo.
2. Bio-compatibility le Absorb-bokhoni
Asiti ea polylactic e ka hydrolyzed ka acid kapa enzyme ho theha lactic acid 'meleng oa motho.Joaloka metabolite ea lisele, acid ea polylactic e ka boela ea sebelisoa ke li-enzyme 'meleng, ho hlahisa CO2 le H2O.Ka hona, acid ea polylactic ha e na chefo ebile ha e kotsi 'meleng oa motho ho feta moo e na le biocompatibility e ntle le bio-absorb-bokhoni, Polylactic acid e netefalitsoe ke Tsamaiso ea Lijo le Lithethefatsi ea US e ka sebelisoang e le bio-material bakeng sa ho kenngoa ka har'a naha. batho.
3. Ho Itloaetsa 'Mele
Joalo ka thepa ea polymer ea thermoplastic, poly lactic acid e na le polasetiki e ntle le thepa ea ho sebetsa 'meleng, e nang le ntlha e phahameng ea ho qhibiliha, elasticity e ntle le ho tenyetseha, le bokhoni bo botle ba ho theha mocheso.Lisebelisoa tsa poly lactic acid joalo ka thepa ea polymer joalo ka polypropylene (PP), polystyrene(PS), le polypropylene ether resin (PPO), li ka sebetsoa ka ho fetisoa, ho otlolla, le ho bopeha ka ente.
Nako ea poso: Nov-03-2022
