Izinto ze-Meltblown azikho esitokweni emhlabeni wonke futhi wonke amafekthri agcwele, kodwa kukhona okokuhlunga okuphezulu okuthatha indawo yezinto ezincibilikayo.Leyo yi-PTFE (polytetrafluoroethylene)!
Ukugqoka imaski kuyindlela ebalulekile nesebenzayo yokuhlukanisa igciwane nokuvikela amaqembu asengozini.Njengamanje, imaski ingasetshenziswa ukuhlukanisa amagciwane kanye nezinhlayiya ze-PM2.5 ngezindlela ezimbili:
(1) I-electrostatic adsorption, okuyindlela esebenzayo yokuhlukanisa, isebenzisa amandla e-electrostatic phakathi kwemicu ephakathi nendawo yemaski ukukhangisa amagciwane nezinhlayiyana ezincane ukuze kuzuzwe ukuhlukaniswa nokuvikelwa;
(2) Ukuzihlukanisa ngokomzimba kuyindlela yokuzihlukanisa, esebenzisa ukwakheka kwembotshana encane ye-mask ngokwayo ukuvimba ukuhlasela kwamagciwane namagciwane.Indlela yokuhlukanisa ngokomzimba ikakhulukazi isebenzisa umthelela wamandla adonsela phansi, umphumela wokunqamula, umphumela wokusabalalisa, nomthelela we-inertia webhaktheriya nezinhlayiya ezinhle.
Izidingo zokuklama zamamaski okuhlinzwa okwelashwa ezijwayelekile zingavimba izinhlayiya ze-aerosol zebhaktheriya ezinkulu kuno-3 microns ububanzi, kodwa ngenxa yobubanzi bembotshana yongqimba oluyisisekelo lwemaski, ukuhlukaniswa ngokomzimba kwezinhlayiya ezincane zamabhaktheriya namagciwane akukwazi ukufezwa ngokuphelele.Amamaski anjalo asebenzisa kakhulu Izindlela zokukhangiswa kwe-electrostatic.Kodwa-ke, njengoba isikhathi sokugqoka sikhula (njengehora eli-1 kuye kwayi-2), imaski iba manzi ngenxa yemisebenzi yabantu efana nokuphefumula komuntu oyifakile, futhi amandla ayo okukhangisa nge-electrostatic aba buthaka, futhi umphumela wokuzihlukanisa uba mubi kancane kancane.Ngakho-ke, imaski evamile yokuhlinzwa yezokwelapha ayikwazi ukuzuza ukuhlukaniswa nokuvikelwa okusebenzayo kwesikhathi eside.
Ukwanda kwesidingo samaski emhlabeni wonke sekuphenduke isihloko somhlaba wonke.Izindwangu ezincibilikayo ezaziwa ngokuthi “inhliziyo” yemaski ekuqaleni zaqala ngaphansi kuka-$3,000 ngethani, futhi manje intengo isikhuphuke ngaphezu kuka-$40,000!
Kulo mongo, ukushintshwa kwezindwangu ezincibilikisiwe imaski sekuphenduke isihloko esishisayo ezikhathini zamuva nje!Izinto ze-Meltblown azikho esitokweni emhlabeni wonke futhi wonke amafekthri agcwele, kodwa kukhona okokuhlunga okuphezulu okuthatha indawo yezinto ezincibilikayo.Leyo yi-PTFE (polytetrafluoroethylene)!
Okudinga ukunakwa okuphezulu ukuthi imaski ye-PTFE ye-nano ekhiqizwe nge-PTFE (polytetrafluoroethylene) njengempahla eluhlaza eyinhloko isiphenduke isiqondiso esisha sokuthuthukiswa kwemaski esikhathini esizayo!
Imaski e-Nano isiphenduke imaskhi evikelayo yezokwelapha ngenxa yokusebenza kwayo kahle kakhulu kokuhlunga.Ngokufanayo namamaski ezokwelapha ajwayelekile, imaski ye-nano elwa namagciwane ibuye ibe nongqimba lwangaphandle, ungqimba oluphakathi, ungqimba lwangaphakathi, ihuku lendlebe, isiqeshana sekhala nezinye izingxenye.Amamaski e-Nano akhethekile ngoba ungqimba oluphakathi lwenziwe nge-nano-membrane enosayizi omncane wembotshana (ama-nanometer angu-100-200), ngokuvamile owenziwe nge-PTFE.IIfilimu ye-PTFEekhiqizwe ngendlela yokwelula engaqondile noma ye-biaxial ine-spider web-like microporous structure ebusweni, futhi inesakhiwo esinezinhlangothi ezintathu esinezinguquko eziyinkimbinkimbi kakhulu njengoxhumano lwenethiwekhi, ukusetha imbobo, nokugoba kwesiteshi, ngakho-ke inezici ezinhle kakhulu zokuhlunga kwendawo.
Amamaski e-Nano enziwe ngezinto ze-PTFE anezici zokusebenza kahle kwezithiyo, impilo yokugqoka isikhathi eside, ukukhanya nokuphefumula, futhi kuwumkhuba omusha wokuthuthukiswa kwemaski esikhathini esizayo.Kodwa-ke, okwamanje, amamaski anjalo e-PTFE ayabiza futhi awakwazi ukuthatha indawo yamamaski endabuko ngokuphelele.
Isikhathi sokuthumela: Apr-08-2020