Polylactic acid (PLA) wani sabon labari ne na tushen halittu kuma abu ne mai sabuntawa wanda aka yi daga albarkatun sitaci da aka samu daga albarkatun shuka mai sabuntawa kamar masara da rogo.
Ana sanya ɗanyen sitaci sacchared don samun glucose, wanda sai a haɗe shi da wasu nau'ikan don samar da tsaftataccen lactic acid. PLA fiber masarar masana'anta wanda ba saƙa ba sannan an haɗa shi da sinadarai don haɗa wani nau'in nauyin kwayoyin polylactic acid. Yana da kyau biodegradability. Bayan amfani, a ƙarƙashin takamaiman yanayi, ana iya lalata shi gaba ɗaya ta hanyar ƙwayoyin cuta a cikin yanayi, suna samar da carbon dioxide da ruwa ba tare da gurɓata muhalli ba. Wannan yana da matukar fa'ida don kare muhalli. Ana ɗaukar masana'anta mara saƙa na PLA abu ne mai dacewa da muhalli.
Ana yin fiber na polylactic acid daga kayan aikin noma na sitaci kamar masara, alkama, da beets na sukari, waɗanda aka haɗe su don samar da lactic acid, sannan kuma suna raguwa kuma suna narke ta hanyar juyawa. Polylactic acid fiber fiber ne na roba wanda za'a iya shuka shi kuma yana da sauƙin girma. Sharar gida na iya lalacewa ta dabi'a.
Kaddarorin polylactic acid zaruruwa
Ayyukan da ba za a iya lalata su ba
Kayan albarkatun fiber na polylactic acid suna da yawa kuma ana iya sake yin su. Polylactic acid zaruruwa suna da kyau biodegradability kuma za a iya gaba daya bazu zuwa carbon dioxide da H2O a cikin yanayi bayan an jefar da su. Dukansu na iya zama albarkatun kasa don sitaci lactic acid ta hanyar photosynthesis. Bayan shekaru 2-3 a cikin ƙasa, ƙarfin PLA fibers zai ɓace. Idan aka binne shi tare da sauran sharar kwayoyin halitta, zai rube cikin 'yan watanni. Bugu da kari, polylactic acid yana hydrolyzed cikin lactic acid ta acid ko enzymes a cikin jikin mutum. Lactic acid shine samfurin rayuwa na sel kuma ana iya haɓaka shi ta hanyar enzymes don samar da carbon dioxide da ruwa. Saboda haka, polylactic acid zaruruwa ma suna da kyau bioacompatibility.
Ayyukan shayar da danshi
Filayen PLA suna da kyakkyawan shayar da danshi da aiki, kama da lalacewa. Ayyukan sha danshi kuma yana da alaƙa da ilimin halittar jiki da tsarin zaruruwa. Tsayin tsayin daka na filayen PLA yana da tabo marasa daidaituwa da ratsi masu katsewa, pores ko fasa, wanda zai iya haifar da tasirin capillary cikin sauƙi kuma yana nuna kyakykyawan shayarwa mai kyau, damshi da kaddarorin rarraba ruwa.
Sauran wasan kwaikwayon
Yana da ƙananan flammability da wasu jinkirin harshen wuta; Ayyukan rini ya fi muni fiye da zaruruwan yadi na yau da kullun, ba mai jurewa ga acid da alkali ba, kuma mai sauƙin ruwa. A lokacin aikin rini, ya kamata a biya kulawa ta musamman ga tasirin acidity da alkalinity; Ƙarfin haƙuri ga ultraviolet radiation, amma mai yiwuwa ga photodegradation; Bayan sa'o'i 500 na bayyanar waje, ana iya kiyaye ƙarfin filaye na PLA a kusan 55% kuma suna da kyakkyawan juriya na yanayi.
Danyen kayan don samar da fiber na polylactic acid (PLA) shine lactic acid, wanda aka yi daga sitaci na masara, don haka ana kiran irin wannan nau'in fiber na masara. Ana iya yin shi ta hanyar yayyafa beets na sukari ko hatsi tare da glucose don rage farashin shirya polymers na lactic acid. Ana iya samun babban nauyin kwayoyin polylactic acid ta hanyar sinadarai polymerization na lactic acid cyclic dimers ko polymerization kai tsaye na lactic acid.
Halayen filaye na polylactic acid
Kayayyakin da aka yi daga polylactic acid suna da kyakykyawan daidaituwar yanayin halitta, bioabsorbability, ƙwayoyin cuta da jinkirin harshen wuta, kuma PLA yana da juriya mai zafi a cikin polymers masu lalata thermoplastic.
Polylactic acid fiber za a iya bazu zuwa carbon dioxide da ruwa a cikin ƙasa ko ruwan teku. Lokacin da aka kone shi, ba ya sakin iskar gas mai guba kuma baya haifar da gurɓatawa. Fiber muhalli ne mai dorewa. Tushensa yana jin daɗi, yana da kyawu mai kyau, yana da juriya ga haskoki UV, yana da ƙarancin flammability, da kyakkyawan aikin sarrafawa. Ya dace da salo iri-iri, tufafin nishaɗi, kayan wasanni, da samfuran tsabta, kuma yana da fa'idodin aikace-aikace.
Aikace-aikace na polylactic acid fibers
Kaddarorin jiki naPLA masarar fiber mara saƙa
Musamman a fannin nazarin halittu, yana da fa'idar aikace-aikace masu fa'ida a cikin abubuwa huɗu masu zuwa.
1. Suture na tiyata
Za a iya amfani da fibers na polylactic acid (PLA) da copolymers a matsayin sutures na tiyata don inganta warkar da raunuka da lalacewa da kuma sha, kamar yadda suke da biodegradability da absorbability a cikin vivo. Bayanan suturar aikin tiyata da ake tsammanin yakamata su kasance suna da ƙarfi na farko
Adadin raguwar haɗin gwiwa na tsanani da lokacin warkar da rauni.
A cikin 'yan shekarun nan, tattaunawa sun fi mayar da hankali kan abun da ke tattare da babban nauyin kwayoyin polylactic acid, inganta fasahar sarrafa suture, da haɓaka ƙarfin injin suture; Abubuwan da ke tattare da polymers na hotoactive PDLA da PLLA sun fi dacewa da sutures na tiyata, kamar yadda Semi crystalline PDLA da PLLA suna da ƙarfin injiniya mafi girma, mafi girman rabo mai ƙarfi, da ƙananan raguwa fiye da amorphous PDLA; Shirye-shiryen sutura masu yawa.
2. Kayan aiki gyarawa na ciki
Ana iya amfani da masana'anta mara saƙa na PLA don haɓaka polylactic acid, haɓaka ƙarfin farko na ƙayyadaddun kayan aiki sosai.
3. Shirya kayan aikin injiniya
Ana iya amfani da zaruruwan acid na polylactic azaman kayan saƙa ko tsara tallafin injiniya. Ta hanyar daidaita microenvironment na scaffold, ana iya sarrafa ci gaban tantanin halitta da aiki, sa'an nan kuma za a iya sanar da shirye-shiryen dasawa, abubuwan da aka gyara, ko na'urorin in vitro don cimma burin gyara da sake gina ayyukan da suka ɓace.
4. Fim ɗin farfadowa na lokaci-lokaci
Maɓalli na lokaci-lokaci na'ura ce don jagora da tsara sabuntawa. Yana amfani da membrane a matsayin shinge don kaucewa da sarrafa hulɗar tsakanin danko da bayyanar tushen haƙori, yantar da sararin samaniya don haɓakar ligaments na periosteal da / ko alveolar kasusuwan kasusuwa, don haka samun nasarar dawo da cututtukan periodontal. Yin amfani da zaruruwan polylactic acid azaman albarkatun ƙasa, saƙa zanen gadon zamani na sabuntawa don ɗaukar ɗan adam.
5. Jijiya magudanar ruwa
6. Wasu
Saboda fitattun kayan aikin injinsa da haɓakar halittu, ana iya amfani da zaruruwan polylactic acid azaman diapers, kaset ɗin gauze, da kayan aikin da za a iya zubarwa. Za a iya bambanta shararsu a cikin watanni 6 bayan an binne su a cikin ƙasa.
Dongguan Liansheng Nonwoven Fabric Co., Ltd., Mai sana'a na kayan da ba a saka ba da kuma kayan da ba a saka ba, ya cancanci amincewar ku!
Lokacin aikawa: Juni-13-2024