WO2014089458A1 - Appareil et procédé utilisant un champ électrique pour créer des motifs de nanoparticules uniformes sur des matériaux non conducteurs afin d'augmenter la filtration et pour l'incrustation de fibres dans des matériaux pour d'autres applications - Google Patents

Appareil et procédé utilisant un champ électrique pour créer des motifs de nanoparticules uniformes sur des matériaux non conducteurs afin d'augmenter la filtration et pour l'incrustation de fibres dans des matériaux pour d'autres applications Download PDF

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Publication number
WO2014089458A1
WO2014089458A1 PCT/US2013/073620 US2013073620W WO2014089458A1 WO 2014089458 A1 WO2014089458 A1 WO 2014089458A1 US 2013073620 W US2013073620 W US 2013073620W WO 2014089458 A1 WO2014089458 A1 WO 2014089458A1
Authority
WO
WIPO (PCT)
Prior art keywords
nanofibers
filtration
patterned
fibers
materials
Prior art date
Application number
PCT/US2013/073620
Other languages
English (en)
Other versions
WO2014089458A9 (fr
Inventor
Anthony Clint CLAYTON
Howard Jerome WALLS
Adam Joseph RIETH
David Samuel ENSOR
Original Assignee
Research Triangle Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Research Triangle Institute filed Critical Research Triangle Institute
Priority to US14/646,165 priority Critical patent/US10188973B2/en
Publication of WO2014089458A1 publication Critical patent/WO2014089458A1/fr
Publication of WO2014089458A9 publication Critical patent/WO2014089458A9/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/025—Types of fibres, filaments or particles, self-supporting or supported materials comprising nanofibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0654—Support layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1233—Fibre diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/546—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using nano- or microfibres

Abstract

La présente invention concerne un dispositif de filtration comprenant un matériau de filtration de base présentant des ouvertures pour qu'un fluide le traverse et un milieu de filtration. Le milieu de filtration comprend une pluralité de nanofibres à motifs formées sur le matériau de filtration de base. Le milieu de filtration possède un facteur de mérite supérieur à 30 kPa-1, le facteur de mérite étant donné par -Log (Pt)/ΔP, où Pt est la pénétration fractionnelle d'un diamètre de particule d'aérosol spécifique et ΔΡ est une chute de pression dans le milieu de filtration correspondant à une vitesse frontale de 5,3 cm/s et une taille de particules de 0,3 micromètres.
PCT/US2013/073620 2004-04-08 2013-12-06 Appareil et procédé utilisant un champ électrique pour créer des motifs de nanoparticules uniformes sur des matériaux non conducteurs afin d'augmenter la filtration et pour l'incrustation de fibres dans des matériaux pour d'autres applications WO2014089458A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/646,165 US10188973B2 (en) 2004-04-08 2013-12-06 Apparatus and method using an electric field for creating uniform nanofiber patterns on nonconductive materials to enhance filtration and for embedment of fibers into materials for other applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261734105P 2012-12-06 2012-12-06
US61/734,105 2012-12-06

Publications (2)

Publication Number Publication Date
WO2014089458A1 true WO2014089458A1 (fr) 2014-06-12
WO2014089458A9 WO2014089458A9 (fr) 2015-04-09

Family

ID=50884031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/073620 WO2014089458A1 (fr) 2004-04-08 2013-12-06 Appareil et procédé utilisant un champ électrique pour créer des motifs de nanoparticules uniformes sur des matériaux non conducteurs afin d'augmenter la filtration et pour l'incrustation de fibres dans des matériaux pour d'autres applications

Country Status (1)

Country Link
WO (1) WO2014089458A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9421707B2 (en) 2012-10-05 2016-08-23 Honeywell International Inc. Nanofiber filtering material for disposable/reusable respirators
US9446547B2 (en) 2012-10-05 2016-09-20 Honeywell International Inc. Nanofiber filtering material for disposable/reusable respirators
US10639572B2 (en) 2016-01-07 2020-05-05 Donaldson Company, Inc. Styrene-acrylonitrile fine fibers, filter media, recirculation filters, and methods

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6872311B2 (en) * 2002-01-31 2005-03-29 Koslow Technologies Corporation Nanofiber filter media
US7592277B2 (en) * 2005-05-17 2009-09-22 Research Triangle Institute Nanofiber mats and production methods thereof
US7655070B1 (en) * 2006-02-13 2010-02-02 Donaldson Company, Inc. Web comprising fine fiber and reactive, adsorptive or absorptive particulate
US7789930B2 (en) * 2006-11-13 2010-09-07 Research Triangle Institute Particle filter system incorporating nanofibers
US20110174158A1 (en) * 2008-05-13 2011-07-21 Research Triangle Institute Particle filter system incorporating electret nanofibers
EP1858617B1 (fr) * 2005-02-16 2011-10-12 Donaldson Company, Inc. Toile a solidite reduite comprenant des fibres et un moyen d'espacement ou de separation des fibres

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6872311B2 (en) * 2002-01-31 2005-03-29 Koslow Technologies Corporation Nanofiber filter media
EP1858617B1 (fr) * 2005-02-16 2011-10-12 Donaldson Company, Inc. Toile a solidite reduite comprenant des fibres et un moyen d'espacement ou de separation des fibres
US7592277B2 (en) * 2005-05-17 2009-09-22 Research Triangle Institute Nanofiber mats and production methods thereof
US7655070B1 (en) * 2006-02-13 2010-02-02 Donaldson Company, Inc. Web comprising fine fiber and reactive, adsorptive or absorptive particulate
US7789930B2 (en) * 2006-11-13 2010-09-07 Research Triangle Institute Particle filter system incorporating nanofibers
US20110174158A1 (en) * 2008-05-13 2011-07-21 Research Triangle Institute Particle filter system incorporating electret nanofibers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9421707B2 (en) 2012-10-05 2016-08-23 Honeywell International Inc. Nanofiber filtering material for disposable/reusable respirators
US9446547B2 (en) 2012-10-05 2016-09-20 Honeywell International Inc. Nanofiber filtering material for disposable/reusable respirators
US10639572B2 (en) 2016-01-07 2020-05-05 Donaldson Company, Inc. Styrene-acrylonitrile fine fibers, filter media, recirculation filters, and methods

Also Published As

Publication number Publication date
WO2014089458A9 (fr) 2015-04-09

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