CN105780298A - Method for producing gas filtering material by needle-free electrostatic spinning technology and application of gas filtering material - Google Patents

Method for producing gas filtering material by needle-free electrostatic spinning technology and application of gas filtering material Download PDF

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Publication number
CN105780298A
CN105780298A CN201610248254.4A CN201610248254A CN105780298A CN 105780298 A CN105780298 A CN 105780298A CN 201610248254 A CN201610248254 A CN 201610248254A CN 105780298 A CN105780298 A CN 105780298A
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CN
China
Prior art keywords
filter element
nanofiber
electrostatic spinning
filtering material
filtration material
Prior art date
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Pending
Application number
CN201610248254.4A
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Chinese (zh)
Inventor
徐海涛
李振宇
卢伟鹏
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Individual
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Individual
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Publication date
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Priority to CN201610248254.4A priority Critical patent/CN105780298A/en
Publication of CN105780298A publication Critical patent/CN105780298A/en
Pending legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/0007Electro-spinning
    • D01D5/0061Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0069Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/0007Electro-spinning
    • D01D5/0061Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0076Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425Cellulose series
    • D04H1/4258Regenerated cellulose series
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1208Porosity

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

The invention provides a method for producing a gas filtering material by a needle-free electrostatic spinning technology and application of the gas filtering material, belongs to the field of manufacturing of nano fiber materials, and in particular relates to a method for preparing a nano fiber filtering material by taking a cellulose acetate high polymer as the raw material. The method is characterized in that (1) cellulose acetate is dissolved into a single solvent or a mixed solvent, wherein the concentration of the solution is 2.1 percent to 23 percent; (2) cloth or a metal foil or a metal net is used as a substrate; (3) the nano fiber material is prepared by utilizing a needle-free electrostatic spinning method; (4) the material is used as the filtering material for preparing a haze-proof mask or an air purifier.

Description

A kind of needleless electrostatic spinning technique produces method and the application thereof of gas filtering material
Technical field
This patent relate to a kind of needleless electrostatic spinning technique produce gas filtering material method and Its application, belongs to nano material and manufactures field.
Background technology
Cellulose acetate has low cost as common industrial macromolecular material, it is easy to degraded etc. Advantage and be widely used in the industry such as filter plug, filter cotton.Receive as raw material preparation Rice fibrous material is also applied to field of Environment Protection and has broad prospects and huge social benefit.
Needleless electrostatic spinning technique is the nano-fiber material preparation method grown up in recent years, With traditional have pin electrostatic spinning technique compared with, there is yield high, easy industrialized advantage, produce Amount is several times that have pin electrostatic spinning technique to tens times.The shape of common needleless electrostatic spinning head Shape has disk, circular cone, annulus, cylinder, ball, screw type, tinsel and above difference The combination of shape.
It is unified that the nano-fiber material utilizing needleless electrostatic spinning technique to prepare has diameter, major diameter Than big, the advantages such as porosity is high, it is applied to gas filtering material and has that vapour lock is little, filter efficiency High tradition clear superiority not available for micron filtration material.
Summary of the invention
Cellulose acetate macromolecular material is combined by the present invention with needleless electrostatic spinning technique, system For going out the brand-new nano-fiber material with unique advantage, and it is applied to gas filtration material Material.
A kind of nanofiber filtration material, it is characterised in that: this filtering material is by nanofiber group Becoming, described nanofiber is acetate fiber, and described nanofiber is three-dimensional staggered network structure, Three-dimensional staggered network structure is internally formed the most through hole, and hole average-size exists In the range of 10-200nm, it is possible to ensure that filter material has the breathability of more than 60%;Described filter material Thickness is 50-300nm, suitably selects filter material thickness according to use condition.
Described nanofiber filtration material is made up of electrostatic spinning process, concrete preparation process bag Include:
(1) cellulose acetate is dissolved in single solvent or mixed solvent;(2) with cloth, gold Belonging to paper tinsel or wire netting is substrate, (3) utilize the method for needleless electrostatic spinning to prepare nanofiber Material.
Described solvent is water, acetic acid, propanoic acid, acetone, butanone, pentanone, hexanone, hexamethylene Mixing of a kind of or more than one solvents composition in ketone, ketopyrrolidine, methyl pyrrolidone Bonding solvent.
Cloth described in step (2) includes the clothes such as cotton, non-woven fabrics, woven dacron, silk, Described metal forming includes the metal formings such as Copper Foil, aluminium foil, iron foil, Alloy Foil, and wire netting includes copper The wire nettings such as net, wire gauze, stainless (steel) wire.
The electrode shape of the needleless electrostatic spinning technique described in step (3), including one and one Individual above disk, circular cone, annulus, cylinder, ball, helix, tinsel, zigzag Bonding jumper and above difform combination.
Detailed description of the invention
Embodiment one
Being dissolved in by cellulose acetate in the mixed solvent of acetic acid and water, acetic acid with the mass ratio of water is 7:3 (w/w), cellulose acetate solution concentration 2.1%;With non-woven fabrics as substrate, utilize disk Shape needleless electrostatic spinning apparatus prepares nano-fiber material.With this material for gas filtering material system Standby haze mask and air purifier.
Embodiment two
Cellulose acetate is dissolved in the mixed solvent of acetone and Ketohexamethylene, acetone and the quality of Ketohexamethylene Ratio is 4:6 (w/w), cellulose acetate solution concentration 23%;With cotton as substrate, utilize Helical form needleless electrostatic spinning apparatus prepares nano-fiber material.With this material for gas filtration material Material preparation haze mask and air purifier.
Embodiment three
Cellulose acetate is dissolved in the mixed solvent of butanone and pentanone, butanone and the mass ratio of pentanone It is 2:8 (w/w), cellulose acetate solution concentration 13%;With copper mesh as substrate, utilize spiral Shape needleless electrostatic spinning apparatus prepares nano-fiber material.With this material for gas filtering material system Standby haze mask and air purifier.

Claims (12)

1. a nanofiber filtration material, it is characterised in that: this filtering material is by Nanowire Dimension composition, described nanofiber is acetate fiber, and described nanofiber is the netted knot of three-dimensional staggered Structure, three-dimensional staggered network structure is internally formed the most through hole, and hole average-size exists In the range of 10-200nm, it is possible to ensure that filter material has the breathability of more than 60%;Described filter material Thickness is 50-300nm, suitably selects filter material thickness according to use condition.
Nanofiber filtration material the most according to claim 1, it is characterised in that: described Nanofiber filtration material is made up of electrostatic spinning process.
3. the side of the nanofiber filtration material prepared described in any one of claim 1-2 Method, it is characterised in that comprise the steps:
(1) cellulose acetate is dissolved in single solvent or mixed solvent;(2) with cloth, gold Belonging to paper tinsel or wire netting is substrate, (3) utilize the method for needleless electrostatic spinning to prepare nanofiber Material.
4. method as claimed in claim 3, is characterized in that: the solvent described in step (1) is Water, acetic acid, propanoic acid, acetone, butanone, pentanone, hexanone, Ketohexamethylene, ketopyrrolidine, first The mixed solvent of a kind of or more than one solvents composition in base ketopyrrolidine.
5. method as claimed in claim 3, is characterized in that: the cloth bag described in step (2) Include the clothes such as cotton, non-woven fabrics, woven dacron, silk, described metal forming include Copper Foil, aluminium foil, The metal forming such as iron foil, Alloy Foil, wire netting includes the metals such as copper mesh, wire gauze, stainless (steel) wire Net.
6. method as claimed in claim 3, is characterized in that: the needleless described in step (3) The electrode shape of electrostatic spinning technique, including one and more than one disk, circular cone, annulus, Cylinder, ball, helix, tinsel, serrated metal bar and above difform group Close.
7. utilize the mask that the nanofiber filtration material described in claim 1-2 is made, It is characterized in that, according to preparation method and the program of mask, described in claim 1-4 Nanofiber filtration material is processed into mask.
8. the purposes of the mask described in claim 7, it is characterised in that this mask can be used in Haze, anti-dust function, under exceedingly odious weather condition, under the conditions of bad working environments and Wear under the conditions of common protection.
9. utilize the filter element that the nanofiber filtration material described in claim 1-2 is made, It is characterized in that, described nanofiber filtration material is processed into given size, for sky Adjust or the filter element of air purifier.
10. the purposes of the filter element described in claim 9, it is characterised in that described filter element is used as sky Adjust or the filter element of air purifier.
11. 1 kinds utilize the air purifier that the filter element described in claim 9 is made, and its feature exists In, the purifying filter element of air purifier is the filter element described in claim 10.
12. 1 kinds utilize the air-conditioning that the filter element described in claim 11 is made, it is characterised in that The purifying filter element of air-conditioning is made up of the filter element of claim 10.
CN201610248254.4A 2016-04-20 2016-04-20 Method for producing gas filtering material by needle-free electrostatic spinning technology and application of gas filtering material Pending CN105780298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610248254.4A CN105780298A (en) 2016-04-20 2016-04-20 Method for producing gas filtering material by needle-free electrostatic spinning technology and application of gas filtering material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610248254.4A CN105780298A (en) 2016-04-20 2016-04-20 Method for producing gas filtering material by needle-free electrostatic spinning technology and application of gas filtering material

Publications (1)

Publication Number Publication Date
CN105780298A true CN105780298A (en) 2016-07-20

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05132842A (en) * 1991-11-15 1993-05-28 Asahi Fiber Glass Co Ltd Production of glass fiber mat
CN101232930A (en) * 2005-08-08 2008-07-30 先进粉末技术有限责任公司 Filter material, method for the production thereof, a filter and filtering method
CN102277689A (en) * 2011-07-21 2011-12-14 东华大学 Device and method for preparing cellulose fibrous membrane with nanometer structure
CN103437071A (en) * 2013-09-11 2013-12-11 浙江伟星实业发展股份有限公司 Electrostatic spinning nanofiber membrane as well as preparation method thereof
CN103459006A (en) * 2011-04-01 2013-12-18 Emd密理博公司 Nanofiber containing composite structures

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05132842A (en) * 1991-11-15 1993-05-28 Asahi Fiber Glass Co Ltd Production of glass fiber mat
CN101232930A (en) * 2005-08-08 2008-07-30 先进粉末技术有限责任公司 Filter material, method for the production thereof, a filter and filtering method
CN103459006A (en) * 2011-04-01 2013-12-18 Emd密理博公司 Nanofiber containing composite structures
CN102277689A (en) * 2011-07-21 2011-12-14 东华大学 Device and method for preparing cellulose fibrous membrane with nanometer structure
CN103437071A (en) * 2013-09-11 2013-12-11 浙江伟星实业发展股份有限公司 Electrostatic spinning nanofiber membrane as well as preparation method thereof

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Application publication date: 20160720