PTFE Membrane Zosefera Tsatanetsatane

PTFE nembanemba fyuluta ndi kwambiri ngakhale mankhwala ngakhale, kuti nawonso ntchito kusefera zosungunulira ndi zidulo, zimene Zosefera ena si kugonjetsedwa.Chifukwa cha mawonekedwe awo a hydrophobic, ayenera kuthiridwa kale ndi ethanol kapena methanol asanasefe amadzimadzi.

Mawu Oyamba

Zosefera za mamembrane kapena "mamembrane" ndi makanema apulasitiki ang'onoang'ono okhala ndi miyeso ya kukula kwake.Zomwe zimadziwikanso kuti skrini, sieve kapena zosefera zazing'ono, nembanemba zimasunga tinthu tating'onoting'ono kapena tinthu tating'onoting'ono tokulirapo kuposa kukula kwa tundu lawo makamaka pojambula pamwamba.Ena particles ang'onoang'ono kuposa ananena pore kukula akhoza anapitiriza ndi njira zina.PTFE nembanemba amapangidwa ndi njira zitatu zosiyana.Mixed Cellulose Esters, Cellulose Acetate, ndi Nylon ndi reverse phase solvent cast membranes, komwe kumayendetsedwa evaporation kapena kuchotsedwa kwa zosungunulira zovuta kumapanga mawonekedwe a porous.Onse hydrophilic ndi hydrophobic PTFE amapangidwa ndi patent ndondomeko kumene nembanemba anatambasula biaxially kupanga porous dongosolo.

Mawonekedwe a Magwiridwe a PTFE Membranes

• Wamphamvu: PTFE nembanemba imayang'aniridwa chifukwa cha kuphulika (longitudinal) ndi tensile (lateral) mphamvu.Supported Acetate ndi nayiloni ndizitsulo zamphamvu kwambiri zomwe zilipo.
• Mankhwala ndi biologically woyera: Monga gawo la pulogalamu yamtengo wapatali, ma reagents apamwamba okha ndi zopangira zimagwiritsidwa ntchito popanga membranes PTFE.Kamodzi kuponyedwa, ma nembanemba amagwiridwa mu chipinda choyera cha 1000 kuti achepetse kuipitsidwa kozungulira.Ngakhale ma nembanemba amafunikira pang'ono (kulemera kwa 0.1-3%) kwa chonyowetsa amadzimadzi, Cellulose acetate ili ndi zotsitsa zamadzi zotsika kwambiri (0.1 kulemera %) ndipo nayiloni, yomwe mwachibadwa imakhala ndi hydrophilic, ilibe zowonjezera zowonjezera kapena zowonjezera.
• Mimba yopyapyala yokhala ndi porosity yayikulu: Mimba yopyapyala yofananira (yomwe nthawi zambiri imakhala 150 µm) yokhala ndi porosity yayikulu (pafupifupi 80%) imapereka mpweya wambiri komanso kutuluka kwamadzi pagawo lililonse.High porosity imaperekanso malo okwera kwambiri kuti adsorption kapena kumanga.
• Thermostable: Ma membrane onse a PTFE amatha kusabala ndi autoclaving.Kutentha kogwira ntchito mpaka 180 ° C kumatha kutheka malinga ndi nembanemba polima .PTFE nembanemba zimawonetsa kuchepa kochepa pakutentha kokwera.

Chitsogozo Chachangu Chosankha Zosefera Membrane

• Dziwani kuti ndi madzi ati kapena gasi ati adzasefedwe.
• Onani kuti ndi nembanemba ziti zomwe zimagwirizana ndi mankhwala.
• Dziwani kuchuluka kwa pore komwe kumafunikira kuti mukwaniritse zotsatira zomwe mukufuna.
• Yang'anani mwatsatanetsatane wa nembanemba kuti muwone zochitika zachilendo zomwe zingachepetse kusankha kwanu kwa nembanemba (monga kutentha).

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