PTFE Membrane Tace cikakkun bayanai

PTFE membrane filter yana da kyakkyawan daidaituwar sinadarai, don haka ana amfani da su don tace abubuwan kaushi da acid, wanda sauran masu tacewa ba su da juriya.Saboda halayensu na hydrophobic, dole ne a rigaya su da ethanol ko methanol kafin tacewa na kafofin watsa labarai masu ruwa.

Gabatarwa

Matatun membrane ko “membrane” fina-finai ne na filastik microporous tare da takamaiman ƙimar girman pore.Hakanan aka sani da allo, sieve ko matattarar microporous, membranes suna riƙe da barbashi ko ƙananan ƙwayoyin cuta waɗanda suka fi girman porensu da farko ta hanyar kama saman.Wasu barbashi ƙanana fiye da girman pore da aka bayyana suna iya riƙe su ta wasu hanyoyi. Ana samar da membranes na PTFE ta hanyoyi daban-daban guda uku.Mixed Cellulose Esters, Cellulose Acetate, da Nylon sune membranes simintin gyaran gyare-gyare na zamani, inda sarrafa evaporation ko kau da hadadden tsarin kaushi ya haifar da tsari mai lalacewa.Dukansu hydrophilic da hydrophobic PTFE an yi su ta hanyar ƙwararrun tsari inda aka shimfiɗa membranes biaxally don samar da tsarin porous.

Halayen Ayyuka na Membran PTFE

• Mai ƙarfi: Ana kula da membranes na PTFE don duka fashe (tsawon tsayi) da ƙarfi (a gefe) ƙarfi. Taimakon Acetate da Nylon sune mafi ƙarfin juzu'in membranes na baya da ake samu.
• Tsaftace ta sinadarai da halittu: A matsayin wani ɓangare na wani m ingancin shirin, kawai high tsarki reagents da albarkatun kasa da ake amfani da su samar da PTFE membranes.Da zarar simintin gyare-gyare, da membranes ana sarrafa a cikin wani aji 1000 tsabta dakin don rage na yanayi gurbatawa.Yayin da wasu membranes suna buƙatar ƙaramin adadin (0.1-3 nauyi %) na wakili na ruwa mai ruwa, Cellulose acetate yana da mafi ƙasƙanci mafi ƙasƙanci na ruwa (0.1 nauyi%) da Nylon, ainihin hydrophilic, ya ƙunshi wani ƙarin kayan jika ko surfactants.
• Ƙananan membranes tare da babban porosity: Maɓalli na bakin ciki iri ɗaya (yawanci 150 µm) tare da babban porosity (kimanin 80%) suna samar da iskar gas da ruwa mai yawa a kowane yanki.Babban porosity kuma yana ba da babban yanki don talla ko ɗaure.
• Thermostable: Duk PTFE membranes za a iya haifuwa ta autoclaving.Za'a iya samun yanayin aiki na har zuwa 180 ° C dangane da membrane polymer. Membran PTFE suna nuna raguwa kaɗan a yanayin zafi mai tsayi.

Jagora mai sauri zuwa Zaɓan Tace Matsalolin Membrane

• Ƙayyade abin da za a tace ruwa ko gas.
• Bincika waɗanne membranes ne suka dace da sinadarai.
• Ƙayyade matsakaicin girman pore da ake buƙata don cimma sakamakon da kuke so.
• Bincika ƙayyadaddun membrane don kowane yanayin tsari wanda ba a saba gani ba wanda zai iya iyakance zaɓinku na membrane (misali zazzabi).

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