Iasidi yePolylactic (PLA)yinoveli yebhayoloji esekwe kwaye ihlaziywa imathiriyeli yokuthomalalisa eyenziwe ngesitatshi semathiriyeli ekrwada ethathwe kwimithombo yezityalo ehlaziyekayo efana nombona kunye necassava.
Izinto zesitatshi ekrwada zihlanjululwa ukuze kufunyanwe iswekile, ethi emva koko ivundiswe ngeentlobo ezithile ukuvelisa iasidi ye-lactic ecocekileyo. I-PLA ifayibha yombona ilaphu elingaphothiweyo lize lidityaniswe ngokwemichiza ukuze lidibanise ubunzima obuthile bemolekyuli ye-polylactic acid. Inokonakala kwezinto eziphilayo. Emva kokusetyenziswa, phantsi kweemeko ezithile, inokutshatyalaliswa ngokupheleleyo ngama-microorganisms kwindalo, ukuvelisa i-carbon dioxide kunye namanzi ngaphandle kokungcolisa indalo. Oku kuluncedo kakhulu ekukhuseleni okusingqongileyo.Ilaphu le-PLA elingaphothiweyoithathwa njengento ehambelana nendalo.
Ifiber yePolylactic acid yenziwe ngeemveliso zezolimo ezisisitatshi ezifana nombona, ingqolowa, kunye neswekile beet, ezibiliswayo ukuze zivelise iasidi ye-lactic, emva koko ishwabene kwaye inyibilike ngokusonta. I-Polylactic acid fiber yintsinga eyenziweyo enokuthi ityalwe kwaye kulula ukuyikhulisa. Inkunkuma inokuthotywa ngokwendalo.
Ukusebenza kwe-Biodegradable.
I-Polylactic acid fiber izinto ekrwada zininzi kwaye ziyarisayikilishwa. Imicu ye-Polylactic acid ine-biodegradability elungileyo kwaye inokubola ngokupheleleyo ibe yi-carbon dioxide kunye ne-H2O kwindalo emva kokulahlwa. Zombini zinokuba yimathiriyeli ekrwada ye-lactic acid starch ngephotosynthesis. Emva kweminyaka engama-2-3 emhlabeni, amandla e-PLA fibers aya kunyamalala. Ukuba ingcwatywe kunye nenye inkunkuma ephilayo, iya kubola kwiinyanga ezimbalwa. Ukongeza, i-polylactic acid i-hydrolyzed kwi-lactic acid nge-asidi okanye i-enzymes emzimbeni womntu. Iasidi yeLactic yimveliso yemetabolism yeeseli kwaye inokuphinda ifakwe kwi-enzymes ukuvelisa ikharbon diokside kunye namanzi. Ngoko ke, iifiber ze-polylactic acid nazo zine-biocompatibility efanelekileyo.
Ukusebenza kokufunxa ukufuma
Iifiber ze-PLA zinokufunxa kakuhle ukufuma kunye nokuqhuba, okufana nokuthotywa. Ukusebenza kokufunxa ukufuma kukwanxulumene ne-morphology kunye nesakhiwo semicu. Umphezulu we-longitudinal we-PLA fibers unamabala angaqhelekanga kunye nemivimbo engapheliyo, i-pores okanye i-cracks, enokuthi yenze lula imiphumo ye-capillary kwaye ibonise i-core core absorption, i-moisturizing kunye neempawu zokusasazwa kwamanzi.
Okunye ukusebenza
Inokutsha okuphantsi kunye nokubuyiswa okuthile komlilo; Ukusebenza kokudaya kubi ngakumbi kunemicu ye-textile eqhelekileyo, ayixhathisi kwi-asidi kunye ne-alkali, kwaye kulula ukuyi-hydrolyze. Ngexesha lenkqubo yokudaya, ingqalelo ekhethekileyo kufuneka ihlawulwe kwimpembelelo ye-acidity kunye ne-alkalinity; Ukunyamezela okunamandla kwimitha ye-ultraviolet, kodwa kukulungele ukutshatyalaliswa kweefoto; Emva kweeyure ezingama-500 zokuvezwa ngaphandle, amandla e-PLA fibers anokugcinwa malunga ne-55% kwaye abe nokumelana nemozulu elungileyo.
Izinto eziluhlaza zokuvelisa i-polylactic acid fiber (PLA) yi-lactic acid, eyenziwa kwi-corn starch, ngoko olu hlobo lwefiber lukwabizwa ngokuba yi-corn fiber. Inokwenziwa ngokubilisa iibhithi zeswekile okanye iinkozo ngeglucose ukunciphisa iindleko zokulungiselela iipolima ze-lactic acid. Ubunzima obuphezulu bemolekyuli i-polylactic acid inokufumaneka ngokusebenzisa i-chemical polymerization ye-lactic acid cyclic dimers okanye i-polymerization ngqo ye-lactic acid.
Iimveliso ezenziwe nge-polylactic acid zine-biocompatibility efanelekileyo, i-bioabsorbability, i-antibacterial kunye ne-flame retardancy, kwaye i-PLA inokumelana nobushushu kwiipolymers ze-thermoplastic ezonakeleyo.
I-Polylactic acid fiber inokubola ibe yi-carbon dioxide kunye namanzi emhlabeni okanye emanzini olwandle. Xa itshiswa, ayikhuphi iigesi ezinetyhefu kwaye ayibangeli ungcoliseko. Lusinga oluzinzileyo lwendalo. Ilaphu layo livakala lilungile, line-drape elungileyo, liyaxhathisa kwimitha ye-UV, linokutsha okuphantsi, kunye nokusebenza okugqwesileyo. Ifanelekile kwiifashoni ezahlukeneyo, iimpahla zokuzonwabisa, iimpahla zemidlalo, kunye neemveliso zococeko, kwaye inethemba elibanzi lokusetyenziswa.
Ixesha lokuposa: May-23-2024