Takaitaccen Gabatarwa na PLA

Game da PLA

PLA, kuma aka sani da polylactide, polyester polymerized daga lactic acid.Polylactic acid yana da ingantaccen biodegradability, dacewa da sha.Abu ne mai guba wanda ba mai guba ba, kayan polymer roba na roba ba mai ban haushi ba.Danyen kayan sa shine lactic acid, wanda aka fi samu daga fermentation na sitaci, kamar masara da shinkafa.Hakanan za'a iya samun shi daga cellulose, datti na dafa abinci ko sharar kifi.

PLA yana da nau'o'in albarkatun kasa, kuma samfuran da aka yi daga gare ta za a iya yin takin kai tsaye ko kuma a ƙone su, wanda zai iya biyan bukatun ci gaba mai dorewa.Kyakkyawan bayyananniyar gaskiya da wasu tauri, daidaituwar halittu da juriya na zafi na PLA sune manyan dalilai na yaɗuwar aikace-aikacen sa.

Bugu da ƙari, PLA yana da thermoplasticity kuma ana iya amfani da shi zuwa wurare da yawa, irin su kayan kwalliya, fibers, da dai sauransu. An fi amfani da shi don abubuwan da za a iya zubar da su kamar kayan da ake iya zubarwa da kayan marufi, da kayan lantarki da kuma kula da lafiya.
Idan aka kwatanta da samfuran petrochemical na gargajiya, yawan kuzari a cikin samar da polylactic acid shine kawai 20% zuwa 50% na samfuran petrochemical, kuma carbon dioxide da aka samar shine kawai 50% na samfuran petrochemical.Sabili da haka, haɓaka kayan lalata polylactic acid ya zama dole don rage matsalolin muhalli da makamashi na duniya.

Siffofin PLA
1. Halittar Halitta
Idan aka kwatanta da robobi na gargajiya, ana iya lalata acid polylactic zuwa CO2 da H2O ta ƙananan ƙwayoyin cuta da haske.Kayayyakin lalacewarsa ba su da guba kuma marasa lahani, kuma ba za su ƙazantar da muhalli ba.Monomer don samar da polylactic acid shine lactic acid, wanda za'a iya haɗe shi da amfanin gona kamar alkama, shinkafa da gwoza sukari ko kayan aikin gona.Saboda haka, albarkatun kasa don samar da polylactic acid ana sabunta su.Ana amfani da polylactic acid azaman kayan da za'a iya cirewa.
2. Biocompatibility da Absorbability
Ana iya sanya polylactic acid ta hanyar acid ko enzyme don samar da lactic acid a cikin jikin mutum.A matsayin metabolite na sel, lactic acid na iya ƙara haɓakawa ta hanyar enzymes a cikin jiki, don samar da CO2 da H2O.Sabili da haka, polylactic acid ba mai guba ba ne kuma mara lahani ga jikin ɗan adam, haka ma yana da kyau bioacompatibility da bioabsorbability.Cibiyar Abinci da Magunguna ta Amurka ce ta tabbatar da Polylactic acid wanda za'a iya amfani dashi azaman abin halitta don dasa a cikin mutane.

3. Na'urar Mashin Jiki
A matsayin kayan aikin polymer na thermoplastic, polylactic acid yana da kyawawan filastik da kaddarorin sarrafa jiki, tare da babban ma'anar narkewa da crysallinity, elasticity mai kyau da sassauƙa, da ingantaccen thermoformability.Polylactic acid kayan, kamar polymer kayan kamar polypropylene (PP), polystyrene (PS), da kuma polyphenylene ether guduro (PPO), za a iya aiki ta extrusion, mikewa, da allura gyare-gyaren.