EFFICIENT LOW-RESISTANCE MICRO-NANO-FIBER MICROSCOPIC GRADIENT STRUCTURE FILTRATION MATERIAL, AND PREPARATION METHOD THEREFOR

EFFICIENT LOW-RESISTANCE MICRO-NANO-FIBER MICROSCOPIC GRADIENT STRUCTURE FILTRATION MATERIAL, AND PREPARATION METHOD THEREFOR

The present invention discloses a micro gradient filter material of high-efficiency low-resistance micron-nano fibers and a preparation method therefor. The material comprises a nano fine filter layer, a micron support primary filter layer, and a protective surface layer; the micron support primary...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Zhao, Yaoming, Zhang, Peng, Deng, Lingli, Yan, Yurong, Zou, Fei, Yang, Suhan, Zhu, Ruitian, Zhang, Wentao
Format: Patent
Sprache:eng
Schlagworte:
BRAIDING
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
KNITTING
LACE-MAKING
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
NON-WOVEN FABRICS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TEXTILES
TRANSPORTING
TRIMMINGS
WADDING
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Beschreibung
Zusammenfassung:The present invention discloses a micro gradient filter material of high-efficiency low-resistance micron-nano fibers and a preparation method therefor. The material comprises a nano fine filter layer, a micron support primary filter layer, and a protective surface layer; the micron support primary filter layer and the nano fine filter layer are alternately superimposed, and arranged between the two protective surface layers; the nano fine filter layer has a grid structure composed of a plane matrix fiber layer and cones, wherein the fibers between the point of the cone and the grid matrix fiber layer form a structure oriented from the point to the plane matrix fiber layer. In the present invention, the uncharged filter material of has a filtration efficiency of 99.9% to 99.999% and a pressure drop of 130-300 Pa for the NaCl aerosol with a mass median diameter of 0.26 μm, and the uncharged filter material has a filtration efficiency of 99.9% to 99.999% and a pressure drop of 30-250 Pa for the NaCl aerosol with a mass median diameter of 0.26 μm.