He aha ka lole maikaʻi no kahi kānana lepo?

I ka ʻimi ʻana i nā lole maikaʻi loa no nā kānana lepo, ʻelua mau mea i loaʻa ka manaʻo nui no kā lākou hana ʻokoʻa: PTFE (Polytetrafluoroethylene) a me kona ʻano hoʻonui, ePTFE (Expanded Polytetrafluoroethylene). ʻO kēia mau mea synthetic, i ʻike ʻia no kā lākou kemika kūʻokoʻa a me nā waiwai kino, ua wehewehe hou i ka kānana lepo i nā wahi koi, e hāʻawi ana i nā pono e hoʻokaʻawale iā lākou mai nā lole kuʻuna e like me ka pulupulu, polyester, a i ʻole nā ​​​​mea HEPA maʻamau.

ʻO PTFE, i ʻōlelo pinepine ʻia e kona inoa inoa ʻo Teflon, he fluoropolymer i hoʻolauleʻa ʻia no kāna mau waiwai non-stick, kūpaʻa kemika, a me ka hoʻomanawanui kiʻekiʻe. Ma kona ʻano maka, ʻo ka PTFE kahi mea paʻa paʻa, akā i ka wā i hoʻomohala ʻia i loko o nā lole kānana, hana ia i kahi ʻili liʻiliʻi, haʻahaʻa haʻahaʻa e pale aku i ka lepo, nā wai, a me nā mea haumia. He mea koʻikoʻi kēia ʻano paʻa ʻole no ka holoi ʻana i ka lepo: ʻaʻole like me nā lole porous e hoʻopaʻa i nā ʻāpana i loko o ko lākou mau fiber (e alakaʻi ana i ka hoʻopaʻa ʻana),Nā kānana PTFEʻae i ka lepo e hōʻiliʻili ma luna o ka ʻili, e maʻalahi ka hoʻomaʻemaʻe a i ʻole ka lulu. ʻO kēia hiʻohiʻona "hoʻouka ʻana i ka ʻili" e hōʻoia i ka holo ʻana o ka ea i ka manawa, kahi pōmaikaʻi nui i nā hoʻonohonoho lepo kiʻekiʻe e like me nā kahua kūkulu a i ʻole nā ​​​​mea kanu hana.

ʻO ePTFE, i hana ʻia e ka hoʻolōʻihi ʻana i ka PTFE e hana i kahi hale porous, lawe i ka hana kānana i ka pae aʻe. Hoʻokumu ke kaʻina hana hoʻonui i kahi pūnaewele o nā pores microscopically liʻiliʻi (maʻamau ma waena o 0.1 a me 10 microns) ʻoiai e mālama ana i nā waiwai o ka PTFE. Hana ʻia kēia mau pores ma ke ʻano he kānana pololei: pale lākou i nā ʻāpana lepo—me nā mea ʻala maikaʻi (PM2.5) a me nā ʻāpana sub-micron—ʻoiai e ʻae ana i ka ea e hele i waena me ka ʻole. He mea maʻalahi ka porosity o ePTFE, no laila kūpono ia i nā noi mai nā mea hoʻomaʻemaʻe ea noho (ka kānana ʻana i ka pet dander a me ka pollen) i nā lumi hoʻomaʻemaʻe ʻoihana (hopu i nā huahana ultrafine.

ʻO kekahi o nā pōmaikaʻi koʻikoʻi loa o ka PTFE a me ka ePTFE ʻo ko lākou kūpaʻa a kūʻē i nā kūlana paʻakikī. ʻAʻole like me ka pulupulu a i ʻole polyester, hiki ke hoʻohaʻahaʻa i ka wā e ʻike ʻia ai i nā kemika, ka makū, a me nā wela kiʻekiʻe, ʻo PTFE a me ePTFE ʻaʻole inert i ka hapa nui o nā mea, me nā waikawa a me nā solvents. Hiki iā lākou ke pale i nā mahana mai -200 ° C a hiki i 260 ° C (-328 ° F a hiki i 500 ° F), e hana maikaʻi iā lākou no ka hoʻohana ʻana i nā umu, nā ʻōnaehana hoʻopau, a i ʻole nā ​​​​wahi waho kahi e hōʻike ʻia ai nā kānana i ka wā ʻino. Hoʻololi kēia kūpaʻa i kahi ola lōʻihi—hiki i nā kānana PTFE a me ePTFE ke mau mahina a i ʻole mau makahiki me ka mālama pono ʻana, ʻoi aku ka maikaʻi o nā mea hoʻohana e like me ka pepa a i ʻole nā ​​kānana synthetic kumu.

ʻO kekahi pōmaikaʻi ʻo kā lākou mau pono mālama haʻahaʻa. Mahalo i ka PTFE ka non-stick ili, lepo particles aole pili ikaika i ka mea kānana. I nā manawa he nui, ʻo ka lulu wale ʻana i ka kānana a i ʻole ka hoʻohana ʻana i ka ea compressed ua lawa ia e wehe i ka lepo i hōʻiliʻili ʻia, e hoʻihoʻi i kona pono. ʻAʻole kēia hoʻohana hou e hoʻemi wale i ka ʻōpala akā hoʻohaʻahaʻa hoʻi i nā kumukūʻai lōʻihi i hoʻohālikelike ʻia i nā kānana hoʻohana hoʻokahi. No ka laʻana, i loko o nā mea hoʻomaʻemaʻe hoʻomaʻemaʻe ʻoihana, hiki ke hoʻomaʻemaʻe ʻia nā kānana ePTFE i nā manawa he nui ma mua o ka pono e hoʻololi, e hōʻemi nui ana i nā lilo hana.

Ke hoʻohālikelike ʻia me nā kānana HEPA—ua noʻonoʻo lōʻihi ʻia ʻo ke kūlana gula no ka kānana ʻāpana maikaʻi—ua paʻa ka ePTFE iā ia iho. ʻOiai e hopu ana nā kānana HEPA i ka 99.97% o nā ʻāpana 0.3-micron, hiki i nā kānana ePTFE kiʻekiʻe ke hoʻokō i nā pae hana like a ʻoi aku paha. Hoʻohui hou, ʻo ka ePTFE ʻoi aku ka maikaʻi o ka ea (ma muli o kāna hoʻolālā pore i hoʻopaʻa ʻia) e hōʻemi i ke koʻikoʻi o nā ʻōnaehana fan, e ʻoi aku ka maikaʻi o ka ikehu ma mua o ka HEPA i nā noi he nui.

I ka hopena, kū ʻo PTFE a me ePTFE ma ke ʻano he lole kūikawā no nā kānana lepo. ʻO kā lākou hui kūʻokoʻa o ke kūpaʻa kemika, ka hoʻomanawanui ʻana i ka mahana, ka porosity customizable, a me ka hoʻohana hou ʻana e lawa ai lākou no ka hoʻohana ʻana i kēlā me kēia lā a me ka ʻoihana. Inā ma ke ʻano o ka ʻili PTFE non-stick no ka hōʻiliʻili lepo kaumaha a i ʻole ka membrane ePTFE i hoʻonui ʻia no ka kānana ʻana i nā mea ʻala maikaʻi loa, hāʻawi kēia mau mea i kahi hopena hilinaʻi a lōʻihi i ka mālama ʻana i ka ea me ka lepo a me nā mea poke. No ka poʻe e ʻimi nei i kahi kānana e kaulike ana i ka pono, ka lōʻihi, a me ka maikaʻi o ke kumukūʻai, ʻo PTFE a me ePTFE ʻaʻole kānalua i waena o nā koho maikaʻi loa i loaʻa.