[go: up one dir, main page]

CN113332864A - Compound nanometer antibiotic air filtration membrane - Google Patents

Compound nanometer antibiotic air filtration membrane Download PDF

Info

Publication number
CN113332864A
CN113332864A CN202110618218.3A CN202110618218A CN113332864A CN 113332864 A CN113332864 A CN 113332864A CN 202110618218 A CN202110618218 A CN 202110618218A CN 113332864 A CN113332864 A CN 113332864A
Authority
CN
China
Prior art keywords
layer
membrane
aggregate base
electrostatic spinning
composite nano
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
Application number
CN202110618218.3A
Other languages
Chinese (zh)
Inventor
杨永生
琚河同
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Manborui New Material Technology Co ltd
Original Assignee
Henan Manborui New Material Technology Co ltd
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 Henan Manborui New Material Technology Co ltd filed Critical Henan Manborui New Material Technology Co ltd
Priority to CN202110618218.3A priority Critical patent/CN113332864A/en
Publication of CN113332864A publication Critical patent/CN113332864A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
    • 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
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0032—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions using electrostatic forces to remove particles, e.g. electret filters
    • 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
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • 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
    • B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/48—Antimicrobial properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Manufacturing & Machinery (AREA)
  • Nanotechnology (AREA)
  • Filtering Materials (AREA)

Abstract

The invention discloses a composite nano antibacterial air filtering membrane, which comprises an aggregate base layer, a sticking and spraying layer and a nano fiber membrane layer, wherein the aggregate base layer, the sticking and spraying layer and the nano fiber membrane layer are sequentially arranged; the nanofiber membrane layer is a three-dimensional net structure formed by superfine fibers with the diameter of 300-500 nm, which are made of high polymer materials through an electrostatic spinning process; the antibacterial agent is added into the electrostatic spinning solution for preparing the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution in a ratio of 0.1% -1%. The invention has the performances of high-efficiency filtration and low resistance, simultaneously has certain antibacterial and bacteriostatic capabilities, can realize air back-blowing self-cleaning, can be repeatedly used for many times, is a novel air filtration material, and has wide application prospect.

Description

Compound nanometer antibiotic air filtration membrane
Technical Field
The invention relates to the technical field of air filtering materials, in particular to a composite type nano antibacterial air filtering membrane.
Background
With the increasing severity of air pollution, people have higher and higher requirements on indoor air quality, and pollutants in indoor air mainly comprise bacteria, viruses, solid pollutants (such as dust, pollen, bacteria-carrying particles and the like), gaseous pollutants (peculiar smell, decoration pollution such as formaldehyde and the like) and the like. Air purifier has certain removal ability to solid-state pollutant, gaseous pollutant etc. in the room air, and the filtering material that current air purifier adopted generally has: the primary filter screen is a first layer of the air purifier and mainly adsorbs substances such as small dust particles, hair and the like in the air; the folding HEPA filter screen is formed by interweaving very small glass fibers (similar to an air filter material of filter paper), and generally comprises a stack of continuous front and back folding multi-layer folded sub-glass fiber membranes so as to enlarge the surface area of the filter screen, increase the capture efficiency of the filter screen on particles in the air and remove tiny particles such as mite dust, pollen, germs, second-hand smoke, dust and the like; the active carbon filter element (filter screen) has super strong peculiar smell adsorption function and can remove various peculiar smells such as indoor smoke, formaldehyde, ammonia, carbon monoxide, benzene and the like and harmful gases. Besides, the filter membrane also comprises a melt-blown cloth composite air filter membrane, a PTFE microporous filter membrane and the like, wherein the microporous filter membrane has extremely high porosity and air permeability and can effectively intercept and adsorb dust, particles and bacteria in the filtered air. The existing composite air filter membrane can increase the thickness of the air filter membrane for improving the filtering effect, but can also increase the resistance and reduce the air permeability, the existing air filter membrane is generally disposable, after certain particles are adsorbed and accumulated on the filter membrane, the filter membrane needs to be replaced, the filter membrane cannot be reused, and meanwhile, the existing air has only the filtering and adsorbing effects and does not have the antibacterial performance.
Disclosure of Invention
The invention aims to provide a composite nano antibacterial air filtering membrane which is efficient, low in resistance, antibacterial and reusable, and can effectively reduce the cost of an air filtering material and improve the resource utilization rate.
In order to solve the technical problems, the invention adopts the following technical scheme:
designing a composite nano antibacterial air filtering membrane, which is characterized by comprising an aggregate base layer, a sticking and spraying layer and a nano fiber membrane layer, wherein the aggregate base layer, the sticking and spraying layer and the nano fiber membrane layer are sequentially arranged; the nanofiber membrane layer is a three-dimensional net structure formed by superfine fibers with the diameter of 300-500 nm, which are made of high polymer materials through an electrostatic spinning process;
the antibacterial agent is added into the electrostatic spinning solution for preparing the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution in a ratio of 0.1% -1%.
Preferably, the nanofiber membrane layer is made of polyvinylidene fluoride or polyacrylonitrile polymer materials through electrostatic spinning.
Preferably, the antibacterial agent is one or a combination of more of silver ions and compounds thereof, quaternary ammonium salt compounds, vanillin or ethyl vanillin compounds.
Preferably, the thickness of the aggregate base layer is 0.3mm-0.7 mm;
preferably, the preparation process of the composite type nano antibacterial air filter membrane comprises the following steps: firstly, polyolefin materials are adhered and sprayed on the surface of an aggregate base layer to form an adhesion and spraying layer, a nanofiber membrane is covered on the adhesion and spraying layer, and the nanofiber membrane and the aggregate base are rubbed and adhered together through hot pressing to obtain a finished product of the composite nano antibacterial air filtration membrane.
The invention has the beneficial effects that:
the composite nano antibacterial air filtering membrane has the advantages of high efficiency, low resistance, antibacterial property and self-cleaning property, and can replace the traditional melt-blown cloth composite air filtering membrane air and glass fiber high-efficiency air filtering membrane; wherein the aggregate base layer is gummed wood pulp paper or polyester non-woven fabric with a certain thickness, and plays a supporting role; the adhesive spraying layer is made of polyolefin materials and plays a role in hot-press bonding; the nanofiber membrane layer is a PVDF or PAN polymer material, and is of a three-dimensional net structure consisting of ultrafine fibers with the diameter of 300-500 nm prepared by an electrostatic spinning process, so that the nanofiber membrane layer has the advantages of high filtering effect and high air permeability, and plays roles in filtering and electrostatic adsorption; the antibacterial agent is added into the electrostatic spinning solution, so that the nanofiber membrane has antibacterial and bactericidal functions after being produced by electrostatic spinning equipment; after the composite nano antibacterial air filtering membrane adsorbs certain micro-dust, the high-pressure air back blowing is adopted, the particles collected on the nano fiber membrane layer can be cleaned, the integrity of the filtering membrane can be ensured by controlling the pressure and time of back blowing airflow, the air filtering membrane after back blowing can be repeatedly used for 3-5 times, the cost of the air filtering material can be effectively saved, and the resource utilization rate is improved.
Compared with the traditional melt-blown cloth composite air filtering membrane air and glass fiber high-efficiency air filtering membranes, the air filtering material prepared by the composite nano antibacterial air filtering membrane has the advantages of high-efficiency filtering, low resistance, certain antibacterial and bacteriostatic capabilities, capability of realizing air back blowing and self cleaning, repeated use, novel air filtering material and wide application prospect.
Drawings
FIG. 1 is a schematic structural diagram of a composite nano antibacterial air filtering membrane of the present invention.
Wherein 1 is an aggregate base layer, 2 is a bonding and spraying layer, and 3 is a nano fiber film layer.
Detailed Description
The following examples are given to illustrate specific embodiments of the present invention, but are not intended to limit the scope of the present invention in any way. The apparatus elements referred to in the following examples are, unless otherwise specified, conventional apparatus elements; the industrial raw materials are all conventional industrial raw materials which are sold on the market, if not specifically mentioned.
Example 1: a composite nano antibacterial air filtering membrane is shown in figure 1 and comprises an aggregate base layer, a sticking and spraying layer and a nano fiber membrane layer which are sequentially arranged, wherein the aggregate base layer is gum-dipped wood pulp paper or polyester non-woven fabric, the sticking and spraying layer is made of polyolefin materials and is stuck and sprayed on the aggregate base layer, and the nano fiber membrane layer is bonded with the aggregate base layer through the sticking and spraying layer in a hot-pressing mode; the nanofiber membrane layer is a three-dimensional net structure formed by superfine fibers with the diameter of 300-500 nm, which are made of high polymer materials through an electrostatic spinning process; the antibacterial agent is added into the electrostatic spinning solution for preparing the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution in a ratio of 0.1% -1%.
The nanofiber membrane layer is made of polyvinylidene fluoride or polyacrylonitrile polymer materials through electrostatic spinning. The antibacterial agent is one or more of silver ions and compounds thereof, quaternary ammonium salt compounds, vanillin or ethyl vanillin compounds. The thickness of the aggregate base layer is 0.3mm-0.7 mm;
example 2: a preparation process of the composite nano antibacterial air filtering membrane comprises the following steps: firstly, polyolefin materials are adhered and sprayed on the surface of an aggregate base layer to form an adhesion and spraying layer, a nanofiber membrane is covered on the adhesion and spraying layer, and the nanofiber membrane and the aggregate base are rubbed and adhered together through hot pressing to obtain a finished product of the composite nano antibacterial air filtration membrane.
The composite nano antibacterial air filtering membrane adopts the gummed wood pulp paper or the polyester non-woven fabric as an aggregate base layer to play a role of supporting the whole filtering membrane, a sticking and spraying layer is formed by sticking and spraying the polyolefin material on the aggregate base layer to play a role of bonding, then a nano fiber membrane prepared by electrostatic spinning is covered on the sticking and spraying layer, and the nano fiber membrane and the aggregate base layer are compounded together through hot-pressing bonding; meanwhile, when the nanofiber membrane is prepared, the antibacterial agent is added into the electrostatic spinning solution, so that the prepared nanofiber membrane has antibacterial and bactericidal functions. Compared with the traditional melt-blown cloth composite air filtering membrane air and glass fiber high-efficiency air filtering membrane, the composite nano antibacterial air filtering membrane adopts the nano fiber membrane as a filtering and adsorbing material, and the nano fiber membrane has extremely high porosity, better air permeability and electrostatic adsorption capacity, so that the formed air filtering membrane has better filtering and adsorbing effects, the air passing resistance is small, and the filtering capacity is improved without increasing the thickness of the composite filtering membrane; the composite nano antibacterial air filtering membrane has antibacterial performance and a self-cleaning function, when the composite nano antibacterial air filtering membrane is used for a period of time, particles collected on the air filtering membrane can be cleaned in a high-pressure air back flushing mode, the integrity of the filtering membrane can be ensured by controlling the pressure and time of back flushing airflow, the composite nano antibacterial air filtering membrane can be repeatedly used for 3-5 times, the cost can be effectively reduced, and the resource utilization rate can be improved.
While the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various changes can be made in the specific parameters of the embodiments without departing from the spirit of the present invention, and that various specific embodiments can be made, which are common variations of the present invention and will not be described in detail herein.

Claims (5)

1. The composite nano antibacterial air filtering membrane is characterized by comprising an aggregate base layer, a sticking and spraying layer and a nano fiber membrane layer which are sequentially arranged, wherein the aggregate base layer is gummed wood pulp paper or polyester non-woven fabric, the sticking and spraying layer is made of polyolefin materials and is stuck and sprayed on the aggregate base layer, and the nano fiber membrane layer is bonded with the aggregate base layer through the sticking and spraying layer in a hot-pressing mode; the nanofiber membrane layer is a three-dimensional net structure formed by superfine fibers with the diameter of 300-500 nm, which are made of high polymer materials through an electrostatic spinning process;
the antibacterial agent is added into the electrostatic spinning solution for preparing the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution in a ratio of 0.1% -1%.
2. The composite nano antibacterial air filtration membrane of claim 1, wherein the nano fiber membrane layer is made of polyvinylidene fluoride or polyacrylonitrile polymer material by electrostatic spinning.
3. The composite nano antibacterial air filtering membrane of claim 1, wherein the antibacterial agent is one or a combination of silver ions and compounds thereof, quaternary ammonium salt compounds, vanillin or ethyl vanillin compounds.
4. The composite nano antibacterial air filtration membrane of claim 1, wherein the thickness of the aggregate base layer is 0.3mm to 0.7 mm.
5. The composite nano antibacterial air filtering membrane of claim 1, wherein the preparation process of the composite nano antibacterial air filtering membrane is as follows: firstly, polyolefin materials are adhered and sprayed on the surface of an aggregate base layer to form an adhesion and spraying layer, a nanofiber membrane is covered on the adhesion and spraying layer, and the nanofiber membrane and the aggregate base are rubbed and adhered together through hot pressing to obtain a finished product of the composite nano antibacterial air filtration membrane.
CN202110618218.3A 2021-06-03 2021-06-03 Compound nanometer antibiotic air filtration membrane Pending CN113332864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110618218.3A CN113332864A (en) 2021-06-03 2021-06-03 Compound nanometer antibiotic air filtration membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110618218.3A CN113332864A (en) 2021-06-03 2021-06-03 Compound nanometer antibiotic air filtration membrane

Publications (1)

Publication Number Publication Date
CN113332864A true CN113332864A (en) 2021-09-03

Family

ID=77473136

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110618218.3A Pending CN113332864A (en) 2021-06-03 2021-06-03 Compound nanometer antibiotic air filtration membrane

Country Status (1)

Country Link
CN (1) CN113332864A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115387116A (en) * 2022-09-02 2022-11-25 浙江技立新材料股份有限公司 Biological antibacterial dyeing nanofiber membrane and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009008500A1 (en) * 2007-07-12 2009-01-15 Nitto Denko Corporation Composite semipermeable membrane
CN102302875A (en) * 2011-07-27 2012-01-04 东华大学 Method for preparing antibacterial air-filtering membrane
CN103520999A (en) * 2012-07-06 2014-01-22 北京服装学院 Antibacterial composite nanometer fiber high-efficiency air filtering material and preparation method thereof
CN109758838A (en) * 2019-01-18 2019-05-17 惠州德赛信息科技有限公司 A kind of reusable air purifying filter mesh of antibacterial and preparation method thereof
CN111375317A (en) * 2020-03-10 2020-07-07 武汉纺织大学 High-strength nanofiber composite membrane and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009008500A1 (en) * 2007-07-12 2009-01-15 Nitto Denko Corporation Composite semipermeable membrane
CN102302875A (en) * 2011-07-27 2012-01-04 东华大学 Method for preparing antibacterial air-filtering membrane
CN103520999A (en) * 2012-07-06 2014-01-22 北京服装学院 Antibacterial composite nanometer fiber high-efficiency air filtering material and preparation method thereof
CN109758838A (en) * 2019-01-18 2019-05-17 惠州德赛信息科技有限公司 A kind of reusable air purifying filter mesh of antibacterial and preparation method thereof
CN111375317A (en) * 2020-03-10 2020-07-07 武汉纺织大学 High-strength nanofiber composite membrane and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115387116A (en) * 2022-09-02 2022-11-25 浙江技立新材料股份有限公司 Biological antibacterial dyeing nanofiber membrane and preparation method thereof
CN115387116B (en) * 2022-09-02 2023-08-22 浙江技立新材料股份有限公司 Biological antibacterial dyed nanofiber membrane and preparation method thereof

Similar Documents

Publication Publication Date Title
CN207126375U (en) A kind of multifunctional air purifying screen pack
CN106237876A (en) A kind of multifunctional composite film material and production technology thereof
CN105268327A (en) Graphene anti-PM2.5 mouth mask filter sheet functional layer and applications in filter sheet
CN106861288A (en) Composite air purification filter structure and composite air purification filter element
CN106823790A (en) Composite air purification filter structure and composite air purification filter element
CN201161144Y (en) Composite type air purification plate
JP5334364B2 (en) Gas removal filter medium, composite filter and filter element
JP2014144421A (en) Deodorization-gas removal filter
CN113332864A (en) Compound nanometer antibiotic air filtration membrane
JP2014151299A (en) Filter material for filter and air filter
JP4953594B2 (en) Allergen removal filter, composite filter and filter element
CN109109422B (en) A durable anti-fog gauze and its production device and production method
CN207126246U (en) Composite air purification filter structure and air purification filter element
CN209271198U (en) A kind of MULTILAYER COMPOSITE filter device
KR102755377B1 (en) Antibacterial and deodorizing composite nonwoven fabric for air purification and manufacturing method thereof
CN203170118U (en) Double-effect filter material
CN210131485U (en) Filter element module for air filtration
CN206285619U (en) Purified filter material and the filter core for possessing air-cleaning function including the purified filter material
KR20150114019A (en) Multifunction filter and method of manufacturing the same
CN211133269U (en) Composite melt-blown filter material
CN201350377Y (en) High molecular polymer air filter material combined with active carbon
JPS63137725A (en) Filter for cleaning air
CN215995919U (en) Melt-blown cloth composite filter material
KR20040029696A (en) Airfilter for aircleaner and method therof
JPH04108511A (en) Air cleaning filter

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20210903

RJ01 Rejection of invention patent application after publication