Xa uphonononga amalaphu angcono okucoca uthuli, izinto ezimbini zifumene ingqwalasela ebalulekileyo ekusebenzeni kwazo okukhethekileyo: PTFE (Polytetrafluoroethylene) kunye nefom eyandisiweyo, i-ePTFE (i-Expanded Polytetrafluoroethylene). Ezi zixhobo zokwenziwa, ezaziwa ngeempawu zazo ezizodwa zeekhemikhali kunye nezomzimba, ziphinde zachaza ukuhluzwa kothuli kwiindawo ezifunwayo, zibonelela ngezibonelelo ezibahlula kumalaphu emveli anjengomqhaphu, ipolyester, okanye izixhobo eziqhelekileyo zeHEPA.
I-PTFE, edla ngokubizwa ngegama lebrendi yeTeflon, yifluoropolymer ebhiyozelwa ngenxa yeempawu zayo zokungabambeleli, ukumelana neekhemikhali, kunye nokunyamezela ubushushu obuphezulu. Kwimo yayo ekrwada, i-PTFE yimathiriyeli eshinyeneyo, eyomeleleyo, kodwa xa yenziwe injineli ibe ngamalaphu okucoca, yenza umphezulu ogudileyo, okhubekayo ophantsi ogxotha uthuli, ulwelo, kunye nezingcolisi. Lo mgangatho ongabambeleliyo ubalulekile ekuhluzweni kothuli: ngokungafaniyo namalaphu arhabaxa abamba amasuntswana anzulu kwimicu yawo (ekhokelela ekuvaleni),Izihluzi ze-PTFEvumela uthuli ukuba luqokelele phezu komhlaba, okwenza kube lula ukucoca okanye ukugubha. Olu phawu "lokulayishwa komphezulu" luqinisekisa ukuhamba komoya okungaguqukiyo ekuhambeni kwexesha, inzuzo ephambili kwiindawo ezinothuli oluphezulu njengeziza zokwakha okanye izityalo zokwenza.
I-ePTFE, eyenziwe ngokwelula i-PTFE ukwenza isakhiwo se-porous, ithatha ukusebenza kokucoca kwinqanaba elilandelayo. Inkqubo yokwandisa ivelisa uthungelwano lweepores ezincinci ezincinci (ngokuqhelekileyo phakathi kwe-0.1 kunye ne-10 microns) ngelixa igcina iipropati ze-PTFE zendalo. Ezi pores zisebenza njenge-sieve echanekileyo: zivimba amasuntswana othuli-kuquka i-fine particulate matter (PM2.5) kunye ne-sub-micron particles-ngelixa ivumela umoya ukuba udlule ngaphandle kokuphazamiseka. I-ePTFE's porosity iyakwazi ukwenzeka kakhulu, iyenza ifaneleke usetyenziso olususela kwizicoci zomoya ezihlala kwindawo yokuhlala (ukuhluza intaka yesilwanyana esifuywayo kunye nepollen) ukuya kumagumbi okucoca amashishini (ukubamba izinto ezenziwe nge-ultrafine).
Olunye uncedo oluphawulekayo kuzo zombini i-PTFE kunye ne-ePTFE kukuhlala kunye nokuchasana neemeko ezibuhlungu. Ngokungafaniyo nekotoni okanye i-polyester, enokuthi ihlaziywe xa ibonakaliswe kwiikhemikhali, umswakama, okanye ukushisa okuphezulu, i-PTFE kunye ne-ePTFE zi-inert kwizinto ezininzi, kuquka i-acids kunye ne-solvents. Ziyakwazi ukumelana namaqondo obushushu ukusuka -200 ° C ukuya 260 ° C (-328 ° F ukuya 500 ° F), nto leyo ebenza balungele ukusetyenziswa eziko, iinkqubo exhaust, okanye iindawo ezingaphandle apho izihluzi zichaneke kwimozulu embi kakhulu. Oku komelela kuguqulela kubomi obude—i-PTFE kunye nezihluzi ze-ePTFE zinokuhlala iinyanga okanye iminyaka ngokulungiswa okufanelekileyo, ukugqwesa ezinye iindlela ezilahlwayo njengephepha okanye izihluzi ezisisiseko zokwenziwa.
Enye inzuzo ziimfuno zabo zokugcinwa okuphantsi. Enkosi kwi-PTFE's non-stick surface, amasuntswana othuli awabambeleli ngamandla kwisixhobo sokucoca. Kwiimeko ezininzi, ukungcangcazela nje isihluzi okanye ukusebenzisa umoya ocinezelweyo kwanele ukukhupha uthuli oluqokelelweyo, ukubuyisela ukusebenza kwayo kakuhle. Oku kusetyenziswa kwakhona akunciphisi inkunkuma kuphela kodwa kuthoba iindleko zexesha elide xa kuthelekiswa nezihluzo ezisetyenziswa kanye. Umzekelo, kwizicoci ze-vacuum zamashishini, izihluzi ze-ePTFE zinokucocwa amaxesha amaninzi phambi kokuba zifune ukutshintshwa, zicuthe kakhulu iindleko zokusebenza.
Xa kuthelekiswa nezihlungi ze-HEPA-esele zijongwa njengomgangatho wegolide wokucoca amasuntswana amahle-i-ePTFE ibambe ngokwayo. Ngelixa izihluzi ze-HEPA zithatha i-99.97% ye-0.3-micron particles, izihlungi eziphezulu ze-ePTFE zinokufikelela kumanqanaba afanayo okanye aphezulu. Ukongeza, ukuhamba komoya okuphezulu kwe-ePTFE (ngenxa yolwakhiwo oluphuculweyo lwepore) kunciphisa uxinzelelo kwiinkqubo zefeni, kuyenza ibe namandla ngakumbi kune-HEPA kwizicelo ezininzi.
Ukuqukumbela, i-PTFE kunye ne-ePTFE zigqama njengamalaphu akhethekileyo kwizihluzi zothuli. Indibaniselwano yabo eyahlukileyo yokumelana neekhemikhali, ukunyamezela ubushushu, i-porosity eyenziwe ngokwezifiso, kunye nokusebenziseka kwakhona kubenza baguquguquke ngokwaneleyo ukuze basetyenziswe yonke imihla kunye nakwimizi-mveliso. Ingaba ikwimo ye-PTFE engabambekiyo yokuqokelela uthuli olunzima okanye i-membrane ye-ePTFE eyandisiweyo ye-ultra-fine filtration particle filtration, ezi zixhobo zibonelela ngesisombululo esithembekileyo, esihlala ixesha elide ekugcineni umoya ungenathuli kunye nokungcola. Kwabo bafuna isihluzo esilinganisa ukusebenza kakuhle, ukuqina, kunye nokusebenza kakuhle kweendleko, i-PTFE kunye ne-ePTFE ngokungathandabuzekiyo ziphakathi kwezona khetho zilungileyo ezikhoyo.
Ixesha lokuposa: Aug-14-2025