"Wiesbaden, n\u011Bmecko" . "Fenyk, Jan" . "Graz, Rakousko" . . . . . "11th World Filtration congress" . . . . . "Morphology of nanofiber structures in ultrafine particles filtration" . "978-3-941655-05-8" . "RIV/47451963:_____/12:#0000055" . . "\u017Dd\u00EDmal, Vladim\u00EDr" . . "Nanofibres; Electrospinning; Microfiltration; Nanofiltration; ultrafine particals separation; 3D model; morfology of nanostructure"@en . . "4"^^ . . "151851" . "Kimmer, Du\u0161an" . "Zatloukal, Martin" . . . "2012-04-16+02:00"^^ . . "Sambaer, Wannes" . "Morphology of nanofiber structures in ultrafine particles filtration"@en . "Morphology of nanofiber structures in ultrafine particles filtration" . "14"^^ . "7"^^ . "P(FR-TI1/053), P(LF12028), V" . "RIV/47451963:_____/12:#0000055!RIV14-MSM-47451963" . "Filtech Exhibitions Germany" . . "Petr\u00E1\u0161, David" . . "Vincent, Ivo" . "[D8FCE54FD9B7]" . . "Morphology of nanofiber structures in ultrafine particles filtration"@en . . "Selected procedures permitting to prepare homogeneous nanofibre structures of the desired morphology by employing a suitable combination of variables during the electrospinning process are presented. A comparison (at the same pressure drop) was made of filtration capabilities of planar polyurethane nanostructures formed exclusively by nanofibres, space polycarbonate nanostructures having bead spacers, structures formed by a combination of polymethyl methacrylate micro- and nanofibres and polypropylene meltblown microstructures, through which ultrafine particles of ammonium sulphate 20 - 400 nm in size were filtered. The structures studied were described using a new digital image analysis technique based on black and white images obtained by scanning electron microscopy. More voluminous structures modified with distance microspheres enable preparation of filters having approximately the same free volume fraction as flat nanofibres filters but an increased effective fibre surface area, changed pore size morphology and, consequently, a higher filter quality." . . . . . "Selected procedures permitting to prepare homogeneous nanofibre structures of the desired morphology by employing a suitable combination of variables during the electrospinning process are presented. A comparison (at the same pressure drop) was made of filtration capabilities of planar polyurethane nanostructures formed exclusively by nanofibres, space polycarbonate nanostructures having bead spacers, structures formed by a combination of polymethyl methacrylate micro- and nanofibres and polypropylene meltblown microstructures, through which ultrafine particles of ammonium sulphate 20 - 400 nm in size were filtered. The structures studied were described using a new digital image analysis technique based on black and white images obtained by scanning electron microscopy. More voluminous structures modified with distance microspheres enable preparation of filters having approximately the same free volume fraction as flat nanofibres filters but an increased effective fibre surface area, changed pore size morphology and, consequently, a higher filter quality."@en . . . .