O le Polylactic acid (PLA) ose mea fou e fa'avaeina ma fa'afouina mea fa'aleagaina e faia mai masoa mata e maua mai i la'au fa'afouina e pei o sana ma manioka.
O meafaitino mata masoa e saccharified ina ia maua ai le kulukose, ona fa'afefeteina ai lea ma nisi galu e maua mai ai le lactic acid maualuga. Ole alava sana ole PLA ole ie e le lalagaina e fa'apipi'i fa'ama'i e fa'atupuina ai se mamafa mole o le polylactic acid. E lelei le biodegradability. A maeʻa ona faʻaoga, i lalo o tulaga faʻapitoa, e mafai ona faʻaleagaina atoatoa e microorganisms i le natura, gaosia le carbon dioxide ma le vai e aunoa ma le faʻaleagaina o le siosiomaga. E aoga tele lenei mea mo le puipuia o le siosiomaga. PLA ie le lalagaina ua manatu o se mea faalesiosiomaga.
O le polylactic acid fiber e faia mai mea fa'ato'aga masoa e pei o sana, saito, ma suka beets, ia e fa'afefeteina e maua ai le lactic acid, ona fa'aitiitia lea ma fa'afefeteina e ala i le milo. O le polylactic acid fiber o se filo gaosia e mafai ona totō ma faigofie ona tupu. O otaota e mafai ona fa'aleagaina fa'alenatura i le natura.
O mea totino o alava polylactic acid
Fa'atinoga fa'aletino
Polylactic acid fiber mata meamata e tele ma toe fa'aaogaina. O alava polylactic acid e lelei le biodegradability ma e mafai ona pala atoa ile carbon dioxide ma le H2O ile natura pe a uma ona lafoai. E mafai ona avea mea uma e lua mo le masoa lactic acid e ala i le photosynthesis. A maeʻa le 2-3 tausaga i le palapala, o le a mou atu le malosi o filo PLA. Afai e tanu fa'atasi ma isi otaota fa'aola, o le a pala i totonu o ni nai masina. E le gata i lea, o le polylactic acid e faʻafefeteina i le lactic acid e le acid poʻo enzymes i le tino o le tagata. O le lactic acid o se mea e maua mai i sela ma e mafai ona fa'aogaina atili e enzymes e maua ai le carbon dioxide ma le vai. O le mea lea, o filo polylactic acid e iai foi le biocompatibility lelei.
Fa'atinoga ole susū
O filo a le PLA o loʻo i ai le susu lelei ma le faʻaogaina, e tutusa ma le faʻaleagaina. O le fa'aogaina o le susu e feso'ota'i fo'i ma le morphology ma le fausaga o alava. Ole pito umi ole alava ole PLA o lo'o i ai ni mea fa'aletonu ma fa'alavelave fa'afuase'i, pores po'o ta'eta'ei, lea e faigofie ona fausia ai a'afiaga capillary ma fa'aalia ai le fa'aoga lelei o le tino, fa'asusu ma fa'asalalau vai.
O isi faatinoga
E maualalo le mu ma nisi fa'alavelave mu; E sili atu le leaga o le valiina o alava ie masani, e le faʻasaʻo i le gaʻo ma le alkali, ma faigofie ona faʻafefeteina. I le faagasologa o le vali, e tatau ona gauai faapitoa i le aafiaga o le acidity ma le alkalinity; Malosi o le faapalepale i le ultraviolet radiation, ae faigofie i photodegradation; A maeʻa le 500 itula o le faʻaalia i fafo, o le malosi o filo PLA e mafai ona faʻatumauina i le tusa ma le 55% ma maua ai le malosi o le tau.
O mea mataʻutia mo le gaosiga o le polylactic acid fiber (PLA) o le lactic acid, lea e faia mai le masoa sana, o lea e taʻua ai foi lea ituaiga fiber o le alava sana. E mafai ona faia e ala i le fa'afefeteina o suka beets po'o saito ma le kulukose e fa'aitiitia ai le tau o le saunia o polymers lactic acid. E mafai ona maua le maualuga mole mole mamafa polylactic acid e ala i le polymerization kemikolo o lactic acid cyclic dimers po'o le polymerization tuusao ole lactic acid.
O uiga o filo polylactic acid
O oloa e faia mai le polylactic acid e lelei le biocompatibility, bioabsorbability, antibacterial ma le mumu mumu, ma le PLA e tete'e vevela i polymers thermoplastic degradable.
Polylactic acid fiber e mafai ona pala ile carbon dioxide ma vai ile eleele poʻo le sami. A susunuina, e le fa'asa'olotoina kasa oona ma e le fa'atupu ai le fa'aleagaina. O se alava fa'alesiosiomaga gafataulimaina. O lona ie e lagona lelei, e lelei le faʻaofuofu, e teteʻe i ave o le UV, e maualalo le mu, ma lelei le gaosiga o gaioiga. E fetaui mo tifiga eseese, lavalava taimi paganoa, mea tau taaloga, ma oloa tumama, ma e lautele le faʻamoemoega faʻatatau.
Fa'aogaina ole alava polylactic acid
Meatotino faaletino oPLA alava sana ie le lalagaina
Aemaise lava i le tulaga o le biomedicine, o loʻo i ai le lautele o faʻamoemoega faʻatatau i itu e fa.
1. Suture taotoga
Polylactic acid fibers (PLA) ma a latou copolymers e mafai ona faʻaaogaina e fai ma suture taotoga e faʻaleleia ai le faʻamalolo o manuʻa ma mulimuli ane faʻaleagaina ma faʻafefeteina, ona o loʻo i ai le biodegradability ma le mitiia i le vivo. O fa'amaumauga o su'i ta'otoga fa'amoemoe e tatau ona malosi le fa'aliga muamua
Ole fua ole fa'aleagaina ole malosi ma le taimi e fa'amalolo ai manu'a.
I tausaga talu ai nei, o talanoaga na taulaʻi tele i le tuʻufaʻatasia o le maualuga o le molecular weight polylactic acid, faʻaleleia atili o tekonolosi suture process, ma le faʻaleleia o le malosi faʻainisinia suture; O le tuufaatasiga o photoactive polymers PDLA ma le PLLA e sili atu ona talafeagai mo sutures taotoga, e pei o le semi tioata PDLA ma PLLA e maualuga atu le malosi faʻainisinia, sili atu tensile fua faatatau, ma maualalo le faapuupuuina fua faatatau amorphous PDLA; Fuafuaga suture multifunctional.
2. Meafaigaluega tumau totonu
E mafai ona faʻaogaina le ie e le faʻaofuofu PLA e faʻaleleia ai le polylactic acid, faʻaleleia atili le malosi muamua o mea faʻamau.
3. Fa'atulaga mea fa'ainisinia
E mafai ona fa'aogaina alava polylactic acid e fai ma mea e lalaga ai po'o le fa'atulagaina o lagolago fa'ainisinia. E ala i le fetuunaiga o le microenvironment o le scaffold, e mafai ona faʻatonutonuina le tuputupu aʻe o le cell ma le gaioiga, ona mafai lea ona faʻasalalau fetuunaiga, vaega, poʻo masini in vitro e ausia ai le sini o le faʻasaʻoina ma le toe faʻaleleia o galuega o loʻo misi.
4. Ata o le toe fa'afouina o periota
Periodontal membrane o se masini e taʻitaʻia ma faʻatulagaina le toe faʻafouina. E faʻaaogaina se paʻu e fai ma pa puipui e aloese ai ma pulea le fesoʻotaʻiga i le va o le pulu ma foliga o le aʻa nifo, faʻasaʻoloto avanoa mo le tuputupu aʻe o ligaments periosteal ma / poʻo sela ponaivi alveolar, ma maua ai le toe faʻaleleia o le faʻamaʻi o le periodontal. Fa'aaogā alava polylactic acid e fai ma mea mata, lalaga laula'au fa'afouga fa'afofoga mo le fa'amago e tagata.
5. Alavai neural
6. Isi
Ona o lona tulaga fa'ainisinia mata'ina ma le biodegradability, polylactic acid fibers e mafai ona fa'aogaina e fai ma napekini, kausa lipine, ma lavalava faigaluega fa'aaoga. O latou otaota e mafai ona fa'avasegaina i totonu ole 6 masina talu ona tanumia ile palapala.
Dongguan Liansheng Nonwoven Fabric Co., Ltd., o se gaosiga o ie e le faʻaofuofu ma ie e le faʻapipiʻiina, e agavaa mo lou faʻatuatuaina!
Taimi meli: Iuni-13-2024