Polylactic acid (PLA) inyowani bio yakavakirwa uye inovandudzwazve yekusvibisa zvinhu inogadzirwa kubva kune sitarch zvinhu zvakabikwa zvakatorwa kubva kune zvinogonekazve chirimwa zviwanikwa zvakaita sechibage necassava.
Starch mbishi zvinhu zvinoiswa saccharified kuti iwane glucose, iyo inozoviriswa nemamwe madhiri kuburitsa yakakwira-kuchena lactic acid. PLA chibage faibha jira risiri rakarukwa rinobva ragadzirwa nemakemikari kuti rigadzirise imwe molecular huremu hwepolylactic acid. Iine biodegradability yakanaka. Mushure mekushandiswa, pasi pemamiriro ezvinhu chaiwo, inogona kuderedzwa zvachose nehutachiona muzvisikwa, ichibudisa carbon dioxide nemvura pasina kusvibisa zvakatipoteredza. Izvi zvinobatsira zvikuru kuchengetedza zvakatipoteredza. PLA isina-yakarukwa jira inoonekwa seyakagadzikana zvinhu.
Polylactic acid fiber inogadzirwa kubva kune zvakaomeswa zvekurima zvakadai sechibage, gorosi, uye shuga beet, iyo inoviriswa kuti ibudise lactic acid, uye yobva yanyungudutswa nekunyunguduka. Polylactic acid fiber is a synthetic fiber inogona kudyarwa uye iri nyore kukura. Tsvina inogona kuderedzwa nenzira yechisikigo.
Izvo zvinhu zvepolylactic acid fibers
Biodegradable performance
Polylactic acid fiber raw materials yakawanda uye inogona kushandiswazve. Polylactic acid fibers ine biodegradability yakanaka uye inogona kuparara zvachose kuita kabhoni dhaikisaidhi uye H2O muzvisikwa mushure mekuraswa. Ose ari maviri anogona kuve akagadzirwa elactic acid starch kuburikidza nephotosynthesis. Mushure memakore 2-3 muvhu, simba rePLA fibers richapera. Kana yakavigwa pamwe chete nemamwe marara emarara, inoora mukati memwedzi mishoma. Uye zvakare, polylactic asidhi inoiswa hydrolyzed kuita lactic asidhi neasidhi kana enzymes mumuviri wemunhu. Lactic acid inogadzirwa nemasero uye inogona kuwedzeredzwa nema enzymes kuti ibudise kabhoni dhaikisaidhi nemvura. Naizvozvo, polylactic acid fibers zvakare ine yakanaka biocompatibility.
Kuita kunyura kwemvura
PLA faibha dzine hunyoro hwakanaka hwekutora uye conductivity, zvakafanana nekuderera. Iyo mwando yekunyudza kuita inobatanawo neiyo morphology uye chimiro chefiber. Iyo longitudinal pamusoro pePLA fibers ine mavara asina kujairika uye inoregedza mitsetse, pores kana makatsemuka, ayo anogona nyore kuumba capillary mhedzisiro uye kuratidza yakanaka yepakati absorption, moisturizing uye mvura diffusion zvivakwa.
Kumwe kuita
Iyo ine yakaderera kupisa uye kumwe kunonoka kwemurazvo; Kuita kwekudhaya kwakaipisisa kupfuura akajairwa machira, asingamirire acid uye alkali, uye nyore kuita hydrolyze. Munguva yekugadzira dhayi, kutarisisa kwakanyanya kunofanirwa kubhadharwa kune pesvedzero yeasidhi uye alkalinity; Kushivirira kwakasimba kune ultraviolet nemwaranzi, asi kunowanzo kune photodegradation; Mushure memaawa mazana mashanu ekuratidzwa kwekunze, kusimba kwePLA fibers kunogona kuchengetedzwa kunosvika makumi mashanu neshanu muzana uye kuve nemamiriro ekunze akanaka.
Iyo mbishi yekugadzirwa kwepolylactic acid fiber (PLA) ilactic acid, iyo inogadzirwa kubva kuchibage starch, saka iyi mhando yefiber inodaidzwa zvakare kuti chibage fiber. Inogona kugadzirwa nekuvirisa shuga beet kana zviyo neglucose kuderedza mutengo wekugadzira lactic acid mapolima. High molecular weight polylactic acid inogona kuwanikwa kuburikidza nemakemikari polymerization yelactic acid cyclic dimers kana yakananga polymerization yelactic acid.
Maitiro e polylactic acid fibers
Zvigadzirwa zvakaitwa kubva ku polylactic asidhi zvine biocompatibility yakanaka, bioabsorbability, antibacterial uye flame retardancy, uye PLA ine kupisa kwekudzivirira mumapolymer anoshatisa thermoplastic.
Polylactic acid fiber inogona kuodzwa kuita kabhoni dhaikisaidhi uye mvura muvhu kana mumvura yegungwa. Kana yapiswa, haibudisi magasi ane chepfu uye haikonzeri kusvibiswa. Iyo inogara yakasimba ecological fiber. Jira rayo rinonzwa kunaka, rine drape yakanaka, rinoshingirira kumaranzi eUV, rine kushomeka kwemoto, uye kuita kwakanaka kwekugadzirisa. Yakakodzera kune akasiyana fashoni, zvipfeko zvekutandara, zvinhu zvemitambo, uye zvigadzirwa zvehutsanana, uye ine tarisiro yakakura yekushandisa.
Kushandiswa kwe polylactic acid fibers
Zvenyama zvePLA chibage faibha risiri rakarukwa jira
Kunyanya mumunda webiomedicine, ine tarisiro yakafara yekushandiswa mune zvinotevera zvinhu zvina.
1. Suture yekuvhiya
Polylactic acid fibers (PLA) uye macopolymers avo anogona kushandiswa sekuvhiya sutures kukurudzira kuporeswa kwemaronda uye kunotevera kushatisa uye kunyura, sezvo vaine biodegradability uye absorbability in vivo. Iyo inotarisirwa yekuvhiya suture data inofanirwa kuve yakasimba yekutanga kutambanudza
Iyo co degradation mwero wekusimba uye nguva yekupora maronda.
Mumakore achangopfuura, nhaurirano dzakanyanya kutarisa kuumbwa kwepamusoro molecular uremu polylactic acid, kuvandudzwa kwe suture processing teknolojia, uye kuwedzera kwe suture mechanical simba; Iko kuumbwa kwephotoactive polymers PDLA uye PLLA inonyanya kukodzera kuvhiyiwa sutures, sezvo semi crystalline PDLA uye PLLA vane simba rakakwirira remagetsi, chiyero chepamusoro, uye kuderedza kupfupisa kwepamusoro pane amorphous PDLA; Multi functional suture kuronga.
2. Internal fixed equipment
PLA isina-yakarukwa jira inogona kushandiswa kuwedzera polylactic asidhi, kuvandudza zvakanyanya simba rekutanga rezvakagadziriswa zvinhu.
3. Ronga zvigadzirwa zveinjiniya
Polylactic acid fibers inogona kushandiswa semidziyo yekuruka kana kuronga mainjiniya ekutsigira. Nekugadzirisa iyo microenvironment ye scaffold, kukura kwesero uye kushanda kunogona kudzorwa, uye ipapo transplantable marongero, zvikamu, kana in vitro zvishandiso zvinogona kuziviswa kuti zvizadzise chinangwa chekugadzirisa uye kuvakazve mabasa asipo.
4. Periodontal regeneration film
Periodontal membrane chishandiso chekutungamira uye kuronga kuberekwa patsva. Inoshandisa membrane sechipingamupinyi chekudzivirira uye kudzora kusangana pakati pegum uye kutaridzika kwezino midzi, kusunungura nzvimbo yekukura kweperiosteal ligaments uye / kana alveolar bone masero, nokudaro kubudirira kupora kwechirwere cheperiodontal. Uchishandisa polylactic asidhi faibha sezvishandiso, ruka periodontal regeneration masheets ekutorwa kwevanhu.
5. Neural conduit
6. Zvimwe
Nekuda kweiyo yakatanhamara makina zvivakwa uye biodegradability, polylactic asidhi faibha inogona kushandiswa semanapukeni, matepi egauze, uye hembe dzebasa dzinoraswa. Tsvina yavo inogona kusiyaniswa mukati memwedzi mitanhatu mushure mekuvigwa muvhu.
Dongguan Liansheng Nonwoven Fabric Co., Ltd., mugadziri wemicheka isina mucheka uye micheka isina kugadzirwa, akakodzera kuvimba kwako!
Nguva yekutumira: Jun-13-2024