Ngokocwaningo olusha olushicilelwe kokuthi 《 Applied Materials Today 》, Into entsha eyenziwe ngama-nanofibres amancane ingangena esikhundleni sezinto ezingase zibe yingozi ezisetshenziswa kumanabukeni nasemikhiqizweni yenhlanzeko namuhla.
Ababhali baleli phepha, abavela e-Indian Institute of Technology, bathi izinto zabo ezintsha zinomthelela omncane emvelweni futhi ziphephile kunalokhu abantu abakusebenzisa namuhla.
Emashumini ambalwa eminyaka adlule, ama-diaper alahlwayo, ama-tampons kanye neminye imikhiqizo ye-sanitary isebenzise ama-absorbent resins (SAPs) njengama-absorber.Lezi zinto zingakwazi ukumunca izikhathi eziningana isisindo sazo oketshezini;Inabukeni elivamile lingamunca isisindo esiphindwe izikhathi ezingu-30 oketshezini lomzimba.Kodwa indaba ayiyona i-biodegrade: ngaphansi kwezimo ezikahle, i-diaper ingathatha iminyaka engu-500 ukwehlisa.Ama-SAP angabangela nezinkinga zempilo njenge-toxic shock syndrome, futhi avalwa kuma-tampons ngawo-1980.
Into entsha eyenziwe nge-electrospun cellulose acetate nanofibers ayinayo yalezi zingqinamba.Ocwaningweni lwabo, ithimba labacwaningi lihlaziye izinto, elikholelwa ukuthi zingathatha indawo yama-SAP asetshenziswa manje emikhiqizweni yokuhlanzeka kwabesifazane.
"Kubalulekile ukuthuthukisa ezinye izindlela eziphephile zemikhiqizo etholakalayo ethengiswayo, engabangela i-toxic shock syndrome nezinye izimpawu," uDkt Chandra Sharma, umbhali ohambisana naleli phepha.Siphakamisa ukuthi kuqedwe izinto eziyingozi ezisetshenziswa emikhiqizweni yamanje etholakalayo kwezohwebo kanye nezinsalela ze-superabsorbent ezingaboli ngesisekelo sokungashintshi ukusebenza komkhiqizo noma ngisho nokuthuthukisa ukumuncwa kwawo nokunethezeka kwawo.
Ama-nanofiber amafayibha amade futhi azacile akhiqizwa i-electrospinning.Ngenxa yendawo yazo enkulu, abacwaningi bakholelwa ukuthi amunca kakhulu kunezinto ezikhona.Izinto ezisetshenziswa kuma-tampons atholakalayo kwezentengiso zenziwe ngemicu eyisicaba, eboshwe cishe ngama-microns angama-30 ngemuva.Ama-nanofiber, ngokuphambene, anogqinsi lwama-nanometer angu-150, mancane ngokuphindwe ka-200 kunezinto zamanje.Izinto ezibonakalayo zikhululekile kakhulu kunalezo ezisetshenziswa emikhiqizweni ekhona futhi zishiya izinsalela ezincane ngemva kokusetshenziswa.
Impahla ye-nanofiber nayo inezimbotshana (ngaphezu kuka-90%) uma iqhathaniswa nejwayelekile (80%), ngakho imunca kakhulu.Kungenziwa elinye iphuzu: kusetshenziswa ukuhlolwa komchamo kasawoti kanye nowokwenziwa, imicu yendwangu ye-electrostatic imunca kakhulu kunemikhiqizo etholakalayo ethengiswayo.Baphinde bahlola izinguqulo ezimbili zezinto ze-nanofibre ngama-SAP, futhi imiphumela yabonisa ukuthi i-nanofibre iyodwa isebenza kangcono.
"Imiphumela yethu ibonisa ukuthi ama-electrostatic textile nanofibers asebenza kangcono kunemikhiqizo ye-sanitary etholakalayo ethengiswayo mayelana nokumuncwa kwamanzi nokunethezeka, futhi sikholelwa ukuthi bayikhandidethi elihle lokuthatha indawo yezinto eziyingozi ezisetshenziswayo njengamanje," kusho uDkt. Sharma.“Sithemba ukuthi kuzoba nomthelela omuhle empilweni yabantu nasemvelweni ngokusetshenziswa okuphephile nokulahlwa kwemikhiqizo yenhlanzeko.
Isikhathi sokuthumela: Mar-08-2023