CN114164565A - Preparation process of antibacterial polytetrafluoroethylene fiber membrane - Google Patents
Preparation process of antibacterial polytetrafluoroethylene fiber membrane Download PDFInfo
- Publication number
- CN114164565A CN114164565A CN202111510558.0A CN202111510558A CN114164565A CN 114164565 A CN114164565 A CN 114164565A CN 202111510558 A CN202111510558 A CN 202111510558A CN 114164565 A CN114164565 A CN 114164565A
- Authority
- CN
- China
- Prior art keywords
- polytetrafluoroethylene
- antibacterial
- fiber membrane
- preparing
- electrostatic spinning
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention aims to disclose a preparation process of an antibacterial polytetrafluoroethylene fiber membrane, which comprises the following steps: preparing electrostatic spinning emulsion containing polytetrafluoroethylene powder, polyvinyl alcohol, nano copper powder and/or nano copper ionic compound; preparing a nascent polytetrafluoroethylene-based membrane by an electrostatic spinning method; the polyvinyl alcohol in the nascent polytetrafluoroethylene-based membrane is removed through a sintering process to form the polytetrafluoroethylene fiber membrane, and the invention has the beneficial effects that: the invention adopts emulsion containing polytetrafluoroethylene powder, polyvinyl alcohol, nano-copper powder and/or nano-copper ionic compound, takes polyvinyl alcohol as excipient, takes nano-copper powder and/or nano-copper ionic compound as antibacterial agent, prepares the antibacterial polytetrafluoroethylene fiber membrane by electrostatic spinning process, and the fiber membrane has lasting antibacterial ability, because part of nano-copper powder and/or nano-copper ionic compound is exposed on the surface or in micropores of polytetrafluoroethylene membrane fiber, and can directly realize the contact of the antibacterial agent and bacteria.
Description
Technical Field
The invention relates to the technical field of electrostatic spinning membranes, in particular to a preparation process of an antibacterial polytetrafluoroethylene fiber membrane.
Background
Polytetrafluoroethylene is usually used for preparing fiber membranes by adopting a stretching method, has wide application in the field of filtration, and can be used for liquid filtration and gas filtration. The polytetrafluoroethylene fiber membrane has the characteristics of high chemical inertness, solvent resistance, corrosion resistance and high and low temperature resistance, and can filter and retain micro particles and bacteria, after the polytetrafluoroethylene fiber membrane blocks a certain amount of micro particles and bacteria, the blocked bacteria can accumulate in the polytetrafluoroethylene fiber membrane, and can further propagate and grow under a proper environment.
The existing polytetrafluoroethylene fiber membrane is generally sterilized by coating an antibacterial agent on the surface, and the polytetrafluoroethylene fiber membrane prepared by the process has the problem of insufficient antibacterial persistence; in addition, most of the antibacterial agent of the polytetrafluoroethylene fiber membrane prepared by the stretching process is wrapped inside the polytetrafluoroethylene fiber membrane after the antibacterial agent and the polytetrafluoroethylene powder are mixed, so that the antibacterial effect is poor.
In view of the above, how to develop a method capable of realizing continuous antibacterial property and exposing the antibacterial agent on the surface or the micropore surface of the polytetrafluoroethylene membrane fiber as much as possible becomes a technical problem to be solved urgently in the industry.
Disclosure of Invention
The invention aims to disclose a preparation process of an antibacterial polytetrafluoroethylene fiber membrane, and particularly relates to a preparation process of an antibacterial polytetrafluoroethylene fiber membrane by improving the preparation process of the polytetrafluoroethylene fiber membrane and mixing nano copper powder and/or nano copper compounds into polytetrafluoroethylene powder.
In order to achieve the first object, the invention provides a preparation process of an antibacterial polytetrafluoroethylene fiber membrane, which comprises the following steps:
preparing electrostatic spinning emulsion containing polytetrafluoroethylene powder, polyvinyl alcohol, nano copper powder and/or nano copper ionic compound;
preparing a nascent polytetrafluoroethylene-based membrane by an electrostatic spinning method;
and removing the polyvinyl alcohol in the nascent polytetrafluoroethylene-based membrane through a sintering process to form the polytetrafluoroethylene fiber membrane.
Preferably, the polytetrafluoroethylene powder accounts for 10-30% by mass, the polyvinyl alcohol accounts for 6-30% by mass, and the nano-copper powder and/or nano-copper ionic compound accounts for 0.5-3.5% by mass.
Preferably, the electrospinning voltage is 2 ten thousand V to 3 ten thousand V.
Preferably, the electrostatic spinning adopts a multi-nozzle simultaneous spinning process.
Preferably, the electrospinning spinning distance is 15cm-25 cm.
Preferably, the electrostatic spinning emulsion is dispersed for 10min to 120min by using ultrasonic waves of 20KHz to 30 KHz.
Preferably, the method further comprises the following steps: and hot-pressing and compounding the sintered polytetrafluoroethylene fiber membrane and the porous fiber material.
Preferably, the porous fiber material is one or more of glass fiber, polyethylene fiber, polypropylene fiber, polyester fiber and plant fiber.
Preferably, the electrostatic spinning device adopted by the multi-nozzle simultaneous spinning process comprises a plurality of groups of rollers, an electrostatic spinning assembly is arranged between two adjacent groups of rollers, the electrostatic spinning assembly comprises a transverse screw rod guide rail and a support, the support moves along the transverse screw rod guide rail, and a plurality of rows of electrostatic spinning nozzles which are transversely arranged are respectively arranged on two sides of the support.
Preferably, the distance between the head of each row of the electrospinning spray heads and the surface of the roller is equal.
Compared with the prior art, the invention has the beneficial effects that:
(1) different from the traditional stretching film-making process, the invention adopts the emulsion containing polytetrafluoroethylene powder, polyvinyl alcohol, nano-copper powder and/or nano-copper ionic compound, takes the polyvinyl alcohol as excipient, takes the nano-copper powder and/or nano-copper ionic compound as antibacterial agent, prepares the antibacterial polytetrafluoroethylene fiber film by electrostatic spinning process, and takes the nano-copper powder and/or nano-copper ionic compound as antibacterial agent, thereby having lasting antibacterial ability.
(2) In the subsequent sintering process, the excipient polyvinyl alcohol is removed, so that most of the nano copper powder and/or nano copper ion compounds are exposed on the surface or in the micropores of the polytetrafluoroethylene membrane fibers, the sintering is also carried out to ensure that the polytetrafluoroethylene powder is subjected to hot melting adhesion to form fibers, so that the nano copper powder and/or nano copper ion compounds exposed on the surface or in the micropores of the polytetrafluoroethylene membrane fibers are naturally and firmly adhered to the polytetrafluoroethylene fibers, and the prepared polytetrafluoroethylene fiber membrane can directly realize the contact of an antibacterial agent and bacteria, so that the antibacterial capability of the fiber membrane is improved.
Drawings
FIG. 1 is a schematic side view of an electrospinning apparatus according to the present invention;
FIG. 2 is a schematic front view of an electrospinning spin pack of the present invention.
Wherein, 1, a plurality of groups of rollers; 11. a first set of rollers; 12. a second set of rollers; 13. a third set of rollers; 2. a transverse lead screw guide rail; 3. a support; 4. and (4) a spray head.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
The following describes a specific implementation process of the present invention by using a plurality of embodiments.
The first embodiment is as follows:
the embodiment discloses a preparation process of an antibacterial polytetrafluoroethylene fiber membrane, which comprises the following steps:
preparing electrostatic spinning emulsion containing polytetrafluoroethylene powder, polyvinyl alcohol, nano copper powder and/or nano copper ionic compound; preparing a nascent polytetrafluoroethylene-based membrane by an electrostatic spinning method; and removing the polyvinyl alcohol in the nascent polytetrafluoroethylene-based membrane through a sintering process to form the polytetrafluoroethylene fiber membrane.
Specifically, polytetrafluoroethylene is difficult to dissolve in a solvent, in the first embodiment, polytetrafluoroethylene powder is prepared into emulsion, then the emulsion is mixed with polyvinyl alcohol solution, a certain amount of nano copper powder and/or nano copper ion compound is added to prepare electrostatic spinning emulsion, and the prepared emulsion is dispersed for 10min to 120min by using ultrasonic waves of 20KHz to 30KHz, so that the electrostatic spinning emulsion containing the polytetrafluoroethylene powder, polyvinyl alcohol, nano copper powder and/or nano copper ion compound is uniformly mixed.
As a preferred embodiment, the mass percent of the polytetrafluoroethylene powder is 10% -30%, the mass percent of the polyvinyl alcohol is 6-30%, the mass percent of the nano copper powder and/or the nano copper ionic compound is 0.5-3.5%, the specific proportion of the specific electrostatic spinning emulsion is shown in table 1, the total mass fraction and the proportion of the polytetrafluoroethylene powder and the polyvinyl alcohol are adjusted, the diameter of the spinneret for electrostatic spinning can be controlled, and the number of micropores in the polytetrafluoroethylene fiber membrane (formed by stacking holes for nascent polytetrafluoroethylene fibers and ablation of polyvinyl alcohol) can also be controlled, preferably, the total mass percentage of polytetrafluoroethylene powder and polyvinyl alcohol is not more than 50%, and the mass percentage of the polytetrafluoroethylene powder is not more than 2 times of the mass percentage of the polyvinyl alcohol.
It should be further noted that the copper simple substance, the copper alloy and the copper-containing compound all have good bactericidal effect, and there is no problem of decay of bactericidal effect, so in the first embodiment, nano copper powder or nano copper compound powder may be used, and of course, nano copper powder and nano copper compound powder may also be used simultaneously.
TABLE 1 specific compounding ratio of electrostatic spinning emulsion
Compared with the prior art, the beneficial effect of this embodiment is:
(1) different from the traditional stretching film-making process, the embodiment adopts emulsion containing polytetrafluoroethylene powder, polyvinyl alcohol, nano copper powder and/or nano copper ionic compound, the polyvinyl alcohol is used as excipient, the nano copper powder and/or nano copper ionic compound is used as antibacterial agent, the antibacterial polytetrafluoroethylene fiber film is prepared by electrostatic spinning process, and the nano copper powder and/or nano copper ionic compound is used as antibacterial agent, so that the antibacterial polytetrafluoroethylene fiber film has lasting antibacterial capability.
(2) In the nascent polytetrafluoroethylene-based membrane prepared in the first embodiment, in the subsequent sintering process, the excipient polyvinyl alcohol is removed, so that most of the nano copper powder and/or nano copper ionic compound is exposed on the fiber surface or in the micropores of the polytetrafluoroethylene membrane, and another purpose of sintering is to cause the hot melting adhesion among the polytetrafluoroethylene powder to form fibers, so that the nano copper powder and/or nano copper ionic compound exposed on the fiber surface or in the micropores of the polytetrafluoroethylene membrane is naturally and firmly adhered to the polytetrafluoroethylene fibers, and the prepared polytetrafluoroethylene fiber membrane can directly realize the contact of the antibacterial agent and bacteria, thereby increasing the antibacterial capacity of the fiber membrane.
Example two:
on the basis of the first embodiment, the electrostatic spinning is mainly to form the polymer into filamentous fibers by a high-voltage electric field and adhere the filamentous fibers to the surface of an object, and the voltage of the high-voltage electric field of the second embodiment is between 2 ten thousand volts and 3 ten thousand volts, and polymer fluid is difficult to form aggregation between the voltages, so that the electrostatic spinning nozzle is prevented from being blocked.
In order to ensure that the diameter of the spinning is smaller, the electrostatic spinning distance is 15cm-25cm, the spinning distance is the distance between the electrostatic spinning nozzle and the attachment of electrostatic spinning, and in the distance range, the filaments can be divided and stretched, and finally the attachment of the nano-scale fine fibers on the surface of an object is realized.
In order to improve the spinning efficiency of electrostatic spinning, the electrostatic spinning of the second embodiment adopts a multi-nozzle simultaneous spinning process, that is, a plurality of nozzles are adopted for simultaneous spinning, the electrostatic spinning device adopted by the multi-nozzle simultaneous spinning process of the second embodiment is shown in fig. 1 and fig. 2, and comprises a plurality of groups of rollers 1, an electrostatic spinning pack is arranged between two adjacent groups of rollers, the electrostatic spinning pack comprises a transverse screw rod guide rail 2 and a bracket 3, the bracket 3 moves along the transverse screw rod guide rail 2, and a plurality of rows of electrostatic spinning nozzles 4 which are transversely arranged are respectively arranged on two sides of the bracket 3. Specifically, the transverse direction refers to the direction parallel to the rollers, three groups of rollers are taken as an example for illustration, referring to fig. 1 and 2, the electrostatic spinning device, a plurality of groups of rollers 1 comprise a first group of rollers 11, a second group of rollers 12 and a third group of rollers 13, each group of rollers consists of a first roller and a second roller which are vertically arranged, a plurality of groups of rollers 1 are helpful for carrying out spinning in a multi-group cooperation mode, so that the spinning efficiency is improved, an electrostatic spinning assembly is arranged between the first group of rollers 11 and the second group of rollers 12 and between the second group of rollers 12 and the third group of rollers 13, the electrostatic spinning assembly comprises a transverse screw rod guide 2 and a bracket 3, the bracket 3 moves along the transverse screw rod guide 2, four rows of electrostatic spinning nozzles 4 which are transversely arranged are respectively arranged on two sides of the bracket 3, namely, the nozzle 4 on one side of the bracket 3 faces one group of rollers, and the nozzle 4 on the other side of the bracket 3 faces the other group of rollers, the benefit of design like this lies in, four rows of electrostatic spinning shower nozzles 4 are working simultaneously to a set of roller, electrostatic spinning shower nozzle 4 is still moving along horizontal lead screw guide rail 3 simultaneously, realize many shower nozzles and spout the silk simultaneously under the removal condition, make and spout the silk more even and have more fibre intercrossing, the filter material aperture that makes the formation is littleer, the hole shape is also more crooked, thereby improve filtration efficiency, in addition, form the cooperation between the multiunit roller, spout simultaneously under the silk condition, the spinning filter material of the same thickness, required time shortens by a wide margin.
In order to prevent the voltage difference between the adjacent rows of electrostatic spinning nozzles 4 and thus the interference with the spinning effect and the direction, the distance between the head of each row of electrostatic spinning nozzles and the surface of the roller is equal, because the surface of the roller is a circular arc surface, in order to prevent the voltage difference between the adjacent rows of electrostatic spinning nozzles 4, the distance between the electrostatic spinning nozzles 4 of the top row and the bottom row and the axis of the roller are closer.
Example three:
on the basis of the first embodiment or the second embodiment, the present embodiment further includes the following steps: and hot-pressing and compounding the sintered polytetrafluoroethylene fiber membrane and a porous fiber material, wherein the porous fiber material is one or more of glass fiber, polyethylene fiber, polypropylene fiber, polyester fiber and plant fiber. The polytetrafluoroethylene fiber membrane and the porous fiber material are subjected to hot-pressing compounding, the porous fiber material usually has a pre-filtering effect, namely, particles with larger sizes are filtered firstly, and the polytetrafluoroethylene fiber membrane further filters particles with smaller sizes, so that the filtering efficiency of the whole filtering material is improved, and the service life of the whole filtering material is prolonged; the porous fiber material is one or a mixture of glass fiber, polyethylene fiber, polypropylene fiber, polyester fiber and plant fiber according to different use environments.
Claims (10)
1. The preparation process of the antibacterial polytetrafluoroethylene fiber membrane is characterized by comprising the following steps of:
preparing electrostatic spinning emulsion containing polytetrafluoroethylene powder, polyvinyl alcohol, nano copper powder and/or nano copper ionic compound;
preparing a nascent polytetrafluoroethylene-based membrane by an electrostatic spinning method;
and removing the polyvinyl alcohol in the nascent polytetrafluoroethylene-based membrane through a sintering process to form the polytetrafluoroethylene fiber membrane.
2. The process for preparing an antibacterial polytetrafluoroethylene fiber membrane according to claim 1, wherein the mass percent of the polytetrafluoroethylene powder is 10% -30%, the mass percent of the polyvinyl alcohol is 6% -30%, and the mass percent of the nano-copper powder and/or the nano-copper ionic compound is 0.5% -3.5%.
3. The process for preparing an antibacterial polytetrafluoroethylene fiber membrane according to claim 1, wherein the electrospinning voltage is 2 to 3 ten thousand volts.
4. The process for preparing an antibacterial polytetrafluoroethylene fiber membrane according to claim 1, wherein the electrospinning employs a multi-nozzle simultaneous spinning process.
5. The process for preparing an antibacterial polytetrafluoroethylene fiber membrane according to claim 1, wherein the electrospinning distance is 15cm to 25 cm.
6. The process for preparing an antibacterial polytetrafluoroethylene fiber membrane according to claim 1, wherein the electrostatic spinning emulsion is dispersed for 10min to 120min by using ultrasonic waves of 20KHz to 30 KHz.
7. The process for preparing an antibacterial polytetrafluoroethylene fiber membrane according to any one of claims 1 to 6, further comprising the steps of: and hot-pressing and compounding the sintered polytetrafluoroethylene fiber membrane and the porous fiber material.
8. The process for preparing an antibacterial polytetrafluoroethylene fiber membrane according to claim 7, wherein the porous fiber material is one or more of glass fibers, polyethylene fibers, polypropylene fibers, polyester fibers and plant fibers.
9. The process for preparing antibacterial polytetrafluoroethylene fiber membrane according to claim 5, wherein the electrostatic spinning device adopted by the multi-nozzle simultaneous spinning process comprises a plurality of groups of rollers, an electrostatic spinning assembly is arranged between two adjacent groups of rollers, the electrostatic spinning assembly comprises a transverse screw rod guide rail and a bracket, the bracket moves along the transverse screw rod guide rail, and a plurality of rows of electrostatic spinning nozzles which are transversely arranged are respectively arranged on two sides of the bracket.
10. The process for preparing an antibacterial ptfe fiber membrane of claim 9, wherein the distance between the head of each row of said electrospinning nozzles and the surface of the roll is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510558.0A CN114164565A (en) | 2021-12-10 | 2021-12-10 | Preparation process of antibacterial polytetrafluoroethylene fiber membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510558.0A CN114164565A (en) | 2021-12-10 | 2021-12-10 | Preparation process of antibacterial polytetrafluoroethylene fiber membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114164565A true CN114164565A (en) | 2022-03-11 |
Family
ID=80485726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111510558.0A Pending CN114164565A (en) | 2021-12-10 | 2021-12-10 | Preparation process of antibacterial polytetrafluoroethylene fiber membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114164565A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09256217A (en) * | 1996-03-25 | 1997-09-30 | Nitto Denko Corp | Polytetrafluoroethylene fiber and its production |
| CN1888155A (en) * | 2006-07-25 | 2007-01-03 | 宁波新顺化纤有限公司 | Superfine fiber one-step functional producing method |
| CN1962971A (en) * | 2006-11-29 | 2007-05-16 | 浙江理工大学 | Process for preparing polytetrafluoroethylene fibre |
| JP2008303503A (en) * | 2007-06-07 | 2008-12-18 | Japan Vilene Co Ltd | Apparatus and method for producing nonwoven fabric |
| CN101530750A (en) * | 2009-04-20 | 2009-09-16 | 浙江理工大学 | Preparation method of polytetrafluoroethylene superfine fiber porous membrane |
| CN101982581A (en) * | 2010-11-18 | 2011-03-02 | 东华大学 | Method for preparing aluminum oxide nanofiber by electrostatic spinning |
| CN101994161A (en) * | 2009-08-25 | 2011-03-30 | 东丽纤维研究所（中国）有限公司 | Method for preparing polytetrafluoroethylene superfine fiber |
| KR20110074085A (en) * | 2009-12-24 | 2011-06-30 | 주식회사 효성 | High temperature electrospinning device |
| US20120114722A1 (en) * | 2010-10-14 | 2012-05-10 | Ballard Robert L | Antimicrobial substrate |
| CN105821586A (en) * | 2016-04-18 | 2016-08-03 | 广州拜费尔空气净化材料有限公司 | Nano-fiber filtering material and preparation method thereof |
| CN105887214A (en) * | 2014-08-25 | 2016-08-24 | 刘钢 | Static spinning film making device |
| CN107497182A (en) * | 2017-08-17 | 2017-12-22 | 东华大学 | A kind of composite nano fiber filtering material for having photocatalysis/antibacterial functions concurrently and preparation method thereof |
| CN111636213A (en) * | 2020-05-13 | 2020-09-08 | 江苏金由新材料有限公司 | Preparation method of polytetrafluoroethylene mask fiber surface layer |
-
2021
- 2021-12-10 CN CN202111510558.0A patent/CN114164565A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09256217A (en) * | 1996-03-25 | 1997-09-30 | Nitto Denko Corp | Polytetrafluoroethylene fiber and its production |
| CN1888155A (en) * | 2006-07-25 | 2007-01-03 | 宁波新顺化纤有限公司 | Superfine fiber one-step functional producing method |
| CN1962971A (en) * | 2006-11-29 | 2007-05-16 | 浙江理工大学 | Process for preparing polytetrafluoroethylene fibre |
| JP2008303503A (en) * | 2007-06-07 | 2008-12-18 | Japan Vilene Co Ltd | Apparatus and method for producing nonwoven fabric |
| CN101530750A (en) * | 2009-04-20 | 2009-09-16 | 浙江理工大学 | Preparation method of polytetrafluoroethylene superfine fiber porous membrane |
| CN101994161A (en) * | 2009-08-25 | 2011-03-30 | 东丽纤维研究所（中国）有限公司 | Method for preparing polytetrafluoroethylene superfine fiber |
| KR20110074085A (en) * | 2009-12-24 | 2011-06-30 | 주식회사 효성 | High temperature electrospinning device |
| US20120114722A1 (en) * | 2010-10-14 | 2012-05-10 | Ballard Robert L | Antimicrobial substrate |
| CN101982581A (en) * | 2010-11-18 | 2011-03-02 | 东华大学 | Method for preparing aluminum oxide nanofiber by electrostatic spinning |
| CN105887214A (en) * | 2014-08-25 | 2016-08-24 | 刘钢 | Static spinning film making device |
| CN105821586A (en) * | 2016-04-18 | 2016-08-03 | 广州拜费尔空气净化材料有限公司 | Nano-fiber filtering material and preparation method thereof |
| CN107497182A (en) * | 2017-08-17 | 2017-12-22 | 东华大学 | A kind of composite nano fiber filtering material for having photocatalysis/antibacterial functions concurrently and preparation method thereof |
| CN111636213A (en) * | 2020-05-13 | 2020-09-08 | 江苏金由新材料有限公司 | Preparation method of polytetrafluoroethylene mask fiber surface layer |
Non-Patent Citations (1)
| Title |
|---|
| 薛迪庚: "《现代纺织品的开发》", 28 February 1994, 中国纺织出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69919139T2 (en) | Apparatus and method for producing a filter material | |
| KR101821049B1 (en) | Quasi-aligned 1D Polymer Nanofibers Grid structure Cross-Laminated, Pore distribution and Pore size controlled 3D Polymer Nanofibers Membrane and Manufacturing Method thereof | |
| DE69728423T2 (en) | METHOD AND DEVICE FOR PRODUCING COMPOSITE FILTER MATERIALS | |
| EP2327817B1 (en) | Spinning apparatus and process for manufacturing nonwoven fabric | |
| EP2922620B1 (en) | Method for producing an integral-asymmetric hollow-fibre polymer membrane consisting of an amphiphilic block copolymer, the hollow-fibre membrane obtained and the use thereof | |
| DE112007002725T5 (en) | Particulate filter system containing nanofibers | |
| EP2057307A2 (en) | Process for producing nano- and mesofibres by electrospinning colloidal dispersions | |
| EP2084312B1 (en) | Method for producing nano- and mesopolymer fibers by electrospinning polyelectrolytes of opposite charge | |
| WO2012139896A1 (en) | Macroporous filtration membrane | |
| KR20130102884A (en) | Membrane for water-filtering and fabricating method thereof | |
| WO2017007267A1 (en) | Method for preparing functional nanofiber filter, and functional nanofiber filter prepared thereby | |
| DE69529151T2 (en) | MICROPOROUS POLYOLEFIN COMPOSITE FILM AND METHOD FOR THE PRODUCTION THEREOF | |
| KR101691636B1 (en) | Ultrafine fiber-based filter with super-flux and high filtration efficiency and preparation method thereof | |
| JP2013194329A (en) | Method for producing nanocomposite-nanofiber | |
| CN114164565A (en) | Preparation process of antibacterial polytetrafluoroethylene fiber membrane | |
| KR100750289B1 (en) | Preparation method of fouling-resistant multi-channel hollow fiber membrane | |
| CN112246113A (en) | Nanofiber filtering membrane with antibacterial and anti-fouling functions and preparation method thereof | |
| DE10329391A1 (en) | Improved gas separation composite membranes made of perfluoropolymers | |
| CN115253704B (en) | Hydrophobic polymer microfiltration membrane and preparation method and application thereof | |
| JP2006152479A (en) | Apparatus for producing ultra fine fiber and method for producing the same using the apparatus | |
| CN114950161A (en) | Separation filtration membrane and method for producing same | |
| WO2021132399A1 (en) | Separation membrane and method for producing separation membrane | |
| KR20200144355A (en) | Preparation method of composite nanofiber filter | |
| CN1372999A (en) | Hollow fibre filter nano membrane and its preparing process | |
| EA033661B1 (en) | Method for producing filtration material, forming compound for its implementation and filtration material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |