Ngokophononongo olutsha olupapashwe ku 《 Izixhobo eziSetyenzisiweyo namhlanje 》, imathiriyeli entsha eyenziwe nge-nanofibres encinci inokungena endaweni yezinto ezinokuba yingozi ezisetyenziswa kwiinapsi kunye neemveliso zococeko namhlanje.
Ababhali beli phepha, abasuka kwiZiko leTekhnoloji laseIndiya, bathi izinto zabo ezintsha zinempembelelo encinci kokusingqongileyo kwaye zikhuselekile kunezo zisetyenziswa ngabantu namhlanje.
Kwiminyaka embalwa edlulileyo, i-diapers ezilahlayo, i-tampons kunye nezinye iimveliso zococeko ziye zasebenzisa i-absorbent resins (SAPs) njenge-absorber.Ezi zinto zinokufunxa amaxesha amaninzi ubunzima bazo kulwelo;I-diaper eqhelekileyo inokufunxa amaxesha angama-30 ubunzima bayo kulwelo lomzimba.Kodwa izinto eziphathekayo azikho i-biodegrade: phantsi kweemeko ezifanelekileyo, i-diaper inokuthatha iminyaka engama-500 ukuthotywa.Ii-SAPs zinokubangela iingxaki zempilo ezifana ne-toxic shock syndrome, kwaye zaye zavalwa kwii-tampon kwiminyaka yoo-1980.
Izinto ezintsha ezenziwe kwi-electrospun cellulose acetate nanofibers azikho ezi zithintelo.Kuphononongo lwabo, iqela lophando lihlalutye izinto eziphathekayo, ezikholelwa ukuba zingathatha indawo ye-SAP esetyenziswa ngoku kwiimveliso zokucoceka kwabasetyhini.
"Kubalulekile ukuphuhlisa ezinye iindlela ezikhuselekileyo kwiimveliso ezithengiswayo, ezinokubangela i-toxic shock syndrome kunye nezinye iimpawu," uGqr Chandra Sharma, umbhali ohambelana nephepha.Sicebisa ukuphelisa izinto eziyingozi ezisetyenziswa kwiimveliso ezikhoyo ngoku kunye ne-non-biodegradable superabsorbent resins ngesiseko sokungatshintshi ukusebenza kwemveliso okanye nokuphucula ukufunxa nokuthuthuzela kwamanzi.
Iinanofibers zinde kwaye zibhityile iintsinga eziveliswa yi-electrospinning.Ngenxa yommandla wabo omkhulu, abaphandi bakholelwa ukuba bafunxa ngakumbi kunezixhobo ezikhoyo.Izinto ezisetyenziswa kwiitamponi ezithengiswayo zenziwe ngeentsinga ezisicaba, eziboshwe malunga ne-30 microns ngasemva.I-Nanofibers, ngokuchaseneyo, zi-150 nanometers ubukhulu, amaxesha angama-200 amancinci kunemathiriyeli yangoku.Izinto eziphathekayo zikhululekile ngakumbi kunezo zisetyenziselwa iimveliso ezikhoyo kwaye zishiya intsalela encinci emva kokusetyenziswa.
I-nanofiber material nayo i-porous (ngaphezu kwe-90%) ngokubhekiselele kwisiqhelo (80%), ngoko i-absorbent ngakumbi.Inqaku elinye linokwenziwa: kusetyenziswa iimvavanyo ze-saline kunye nezokwenziwa komchamo, iintsinga ze-electrostatic textile fibers zifunxa ngakumbi kuneemveliso ezifumanekayo kurhwebo.Baphinde bavavanya iinguqulelo ezimbini zezinto ze-nanofibre ngee-SAP, kwaye iziphumo zibonise ukuba i-nanofibre yodwa isebenza ngcono.
"Iziphumo zethu zibonisa ukuba i-electrostatic textile nanofibers yenza ngcono kuneemveliso zococeko ezithengiswayo ngokubhekiselele kumanzi afunxayo kunye nokuthuthuzela, kwaye sikholelwa ukuba bangumgqatswa ofanelekileyo wokutshintsha izinto ezinobungozi ezisetyenziswayo ngoku," kusho uDkt Sharma."Sinethemba lokuba nefuthe elihle kwimpilo yabantu kunye nokusingqongileyo ngokusebenzisa ngokukhuselekileyo kunye nokulahla iimveliso zococeko.
Ixesha lokuposa: Mar-08-2023