I-Oil-proof textile iwuhlobo lwendwangu efanelekile yokugqoka, okungelula ukungcoliswa ngamafutha, kulula ukuyihlanza, ukunciphisa izindleko zokugcinwa kwabathengi, ngakho-ke ithandwa kakhulu emakethe yabathengi.

I-Fluorocarbon compounds (PFC), njengama-ejenti wokuqedela wendwangu yamandla aphansi angaphezulu, ingathuthukisa ngempumelelo izakhiwo zendwangu ezingangeni manzi/ezingenawo uwoyela. Ikakhulukazi, ama-polymers we-long-chain fluorocarbon ake aba yimikhiqizo eyinhloko emakethe. Kodwa-ke, ama-fluorocarbons angase athinte impilo yomuntu kanye nokuphepha kwemvelo ngesikhathi sokusetshenziswa kwawo, futhi imikhiqizo yawo akulula ukucekelwa phansi endaweni ezungezile. I-European Union yabeka ukuvinjelwa kokuthengiswa nokusetshenziswa kwe-PFOS kanye ne-PFOA ku-2008. Ngakho-ke, ukuthola nokuthuthukisa izinto ezishintshayo sekuyingxenye ebalulekile yemboni yamakhemikhali yendwangu kanye nemboni yokudaya nokuqeda imboni emhlabeni wonke.

I-Columbia University isanda kumemezela uhlobo olusha lwendwangu exosha uwoyela engasebenzisi i-PFC ekulungiseni kwayo. Abacwaningi bengeza ukuthungwa ebusweni befayibha ngayinye, futhi balawule ikhemistri engaphezulu ye-fiber material ngokulawula usayizi nezikhala zokuthungwa, ukuze babone umsebenzi wayo wokuxosha uwoyela. Imiphumela yokuhlolwa ibonise ukuthi izindwangu bezingemanzisi lapho ukungezwani kwendawo kwakuphansi njengo-23.9mn/m, futhi kube nomthelela omuhle wokuhlukanisa kuwoyela we-rapeseed, uwoyela we-olive namafutha e-castor.

Isimiso sokulungiselela simi kanje: ingaphezulu lendwangu liyi-hydrophilic ngemva kokufakwa kwe-plasma. Inombolo enkulu yamaqembu e-hydroxyl eyakhiwe ngemva kwe-hydrolysis ye-TEOS ingakha isendlalelo sokusabela kwendwangu. Ngemuva kokuphulukisa, isakhiwo se-micro-nano esinobunzima obuthile singakhiwa. Ngaphezu kwalokho, ngemva kokucwiliswa esixazululweni se-silanol, inani elikhulu lamaqembu e-silanol ebusweni bendwangu lingasabela nge-siloxane ye-1, 3-dichlorotetrachloromethyldisiloxane, ngaleyo ndlela ukunciphisa amandla ayo angaphezulu. Ngaphansi komphumela we-synergistic wesakhiwo esimaholoholo namandla angaphezulu aphansi, indwangu inempahla yokuxosha uwoyela.

Ngaphezu kwalokho, ngenxa yesibopho sokubambisana phakathi kwezinto ezingaphezulu kanye ne-fiber, ingaba khona ngokuzinzile esimweni sokuwashwa noma ukuguga, okuqinisekisa ukuqina kwayo ngezinga elithile. Lolu cwaningo luhlinzeka ngezikhombisi-ndlela zokuthuthukisa ukuthuthukiswa okusimeme kwemikhiqizo yendwangu esebenzayo.

Izixhumanisi ze-thesis: https://www.nature.com/articles/s41893-020-0591-9

(Umthombo: Ibhulogi Esemthethweni Esemthethweni ye-Textile Herald)