CN110965347A - Preparation method of conductive gel and HEPA filter screen - Google Patents
Preparation method of conductive gel and HEPA filter screen Download PDFInfo
- Publication number
- CN110965347A CN110965347A CN201811148200.6A CN201811148200A CN110965347A CN 110965347 A CN110965347 A CN 110965347A CN 201811148200 A CN201811148200 A CN 201811148200A CN 110965347 A CN110965347 A CN 110965347A
- Authority
- CN
- China
- Prior art keywords
- conductive gel
- filter screen
- conductive
- spraying
- water
- 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
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0013—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using multilayer webs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0036—Polyester fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0038—Polyolefin fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
- D06N3/009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by spraying components on the web
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/04—Properties of the materials having electrical or magnetic properties
- D06N2209/041—Conductive
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/30—Filters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to a preparation method of conductive gel and a HEPA filter screen, which is characterized in that the conductive gel comprises the following components by weight: 5-9 parts of conductive coating, 5-9 parts of water-based epoxy resin, 1-2 parts of water-based epoxy curing agent, 0.5-1 part of defoaming agent and 10-50 parts of deionized water. Uniformly mixing the conductive coating and the water-based epoxy resin, adding the water-based epoxy curing agent, uniformly mixing, adding the rest materials, and stirring at 300-500 rpm for 1-3 hours to obtain the conductive gel. Filling the conductive gel into a spray gun, pressurizing to 4-5 MPa by adopting a gas mixing type spraying method, and spraying out through a nozzle; after spraying with the thickness of 0.1-1 mm, drying at 80 +/-5 ℃ for 1-2 minutes, and then spraying the next layer for 2-5 times in total to obtain the HEPA filter screen.
Description
Technical Field
The invention relates to the field of air purification, in particular to a preparation method of conductive gel and a HEPA filter screen.
Background
CN201410806528.8 discloses a water-based conductive coating, a preparation method and application thereof, which are special for green and environment-friendly water-based conductive coatings of textile substrates, and a preparation method and application thereof. The water-based conductive coating comprises, by weight, 30-50% of a polymer emulsion, 5-30% of a conductive material, 1-5% of a water-soluble dispersant, 0.1-3% of a textile penetrating agent, 0.5-2% of a textile softening agent, 0.5-2% of an emulsifier, 0-1% of a defoaming agent, 0.1-2% of a film-forming auxiliary agent, 0.1-2% of a thickening agent, 0.01-0.5% of a PH regulator and the balance of water. The coating disclosed by the invention has the characteristics of low cost, safety, no toxicity, environmental friendliness and no pollution, can be directly coated on various textile base materials such as pure cotton, terylene, chinlon, acrylic fibers and blended fabrics, has good conductivity, softness and bending resistance of a coating film, and shows good damage resistance in artificial distortion, tearing, friction and other damage tests.
But the conductive paint cannot be applied to the field of air purification.
Disclosure of Invention
The invention aims to solve the technical problem of providing the conductive gel which has good adsorption capacity and can not block the pore channel of the filter screen aiming at the current situation of the prior art.
The invention provides a preparation method of a HEPA filter screen aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the conductive gel is characterized by comprising the following components in parts by weight:
preferably, the conductive coating has a viscosity of 100-1At 23 ℃ of 500-2000 mPa.s.
Preferably, the conductive coating is PTT-023 produced by Shanghai Zhengnano science and technology Limited.
Preferably, the waterborne epoxy resin is a SZS602 waterborne epoxy resin; the waterborne epoxy curing agent is 703 waterborne epoxy curing agent.
Preferably, the defoaming agent is a BYK019 defoaming agent.
Preferably, the aqueous epoxy resin is cationic; the conductive gel further comprises 0.8-1.5 parts by weight of nano silver ions. So as to further improve the antibacterial property of the filter screen.
The preparation method of the conductive gel comprises the following steps:
uniformly mixing the conductive coating and the water-based epoxy resin, adding the water-based epoxy curing agent, uniformly mixing, adding the rest materials, and stirring at 300-500 rpm for 1-3 hours to obtain the conductive gel.
The preparation method of the HEPA filter screen using the conductive gel in each scheme is characterized by comprising the following steps:
the conductive gel is filled into a spray gun, and a gas mixing type spraying method is adopted, wherein the gas inlet pressure is 0.1-0.1 MPa, and the gas inlet amount is 4-8 kg/m3The ratio of air to paint is 5: 1-9: 1, and the paint is sprayed out through a nozzle after being pressurized to 4-5 MPa;
the distance between the nozzle and the filter screen to be sprayed is 20-30 cm, and the translation speed of the nozzle is not more than 10 cm/s; spraying a layer with the thickness of 0.1-1 mm, drying at 80 +/-5 ℃ for 1-2 minutes, then spraying the next layer for 2-5 times in total to obtain the HEPA filter screen. (ii) a
Preferably, the filter screen comprises a framework support body and a non-woven fabric compounded on the framework support body.
Preferably, the weight of the framework support body is 50-90 g/m2The PET fiber fabric of (1); the non-woven fabric is a PP non-woven melt-blown fabric with the filament diameter of 3-99 microns;
dispensing glue on the framework support body, wherein the dispensing quantity is 3g/m2-8g/m2(ii) a And then pressing the non-woven fabric to obtain the filter screen.
Compared with the prior art, the conductive gel provided by the invention adopts the conductive coating and the water-based epoxy resin as the base materials, has good compatibility with the base materials, and has the advantages of quick drying, good dispersibility and strong water resistance; and all components have synergistic effect, so that the prepared HEPA filter screen can effectively delay the weakening of the filtration efficiency of the HEPA filter screen even in damp and corrosive environments, and the service life of the filter screen is prolonged.
Drawings
FIG. 1 is an SEM photograph of example 1 of the present invention
FIG. 2 is an SEM photograph of a comparative example of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
1. Preparation of conductive gel
Taking materials according to the following parts by weight:
the conductive coating in this embodiment is PTT-023, 100 produced by Shanghai Zhengnzhen Ntech Co., Ltd-1A viscosity at 23 ℃ of 500-2000 mPas.
Waterborne epoxy resin SZS602 waterborne epoxy resin of Wuhan far city science and technology development Limited; waterborne epoxy curing agent SZS703 waterborne epoxy curing agent from Wuhan far city science and technology development Co.
The defoaming agent is BYK019 defoaming agent.
Firstly, mixing the conductive coating and the water-based epoxy resin, uniformly stirring at 300-500 rpm, adding the water-based epoxy curing agent, continuously stirring and uniformly mixing, adding deionized water and nano silver ions, and stirring at 400rpm for 2 hours to obtain the conductive gel.
2. Preparation of the Filter Screen
Placing a PET framework support body and a PP melt-blown layer on two different conveying belts, wherein the PET framework support body is subjected to glue dispensing through a spray head of a glue gun, the glue dispensing is carried out on the PET framework support body by the glue gun, and the glue dispensing amount is 5g/m2(ii) a And adhering the PET skeleton support body subjected to glue dispensing with the PP melt-blown layer on the other conveying belt, then entering a pressing roller for pressing firmly to form a fiber filter screen after adhering, and rolling into a coiled material for later use.
The PET skeleton used in this example had a grammage of 70g/m2The PET fiber fabric of (1); the PP melt-blown layer is PP non-woven melt-blown cloth with the filament diameter of 15 microns.
The conductive gel obtained by the preparation method is filled into a spray gun, and a gas mixing type spraying method is adopted, wherein the gas inlet pressure is 0.1MPa, and the gas inlet amount is 5-7 kg/m3The ratio of air to paint is 5:1, and the paint is sprayed out through a nozzle after the paint is pressurized to 4.5 MPa; spraying nozzleOnto the surface layer of the skeleton.
In the spraying process, a part of compressed air participates in the atomizing process of the coating, the expanded and atomized coating is further atomized to become thinner and more uniformly distributed, and the other part of compressed air forms an air curtain around the fan-shaped paint mist flow of the coating to limit the paint mist to flow around and dissipate and restrict the paint mist to be coated on the filter paper.
The distance between the nozzle and the filter screen to be sprayed is 20-30 cm, the spraying route is from left to right and from top to bottom, and the translation speed of the nozzle is not more than 10 cm/s; spraying a layer with the thickness of 0.5mm, and drying for 1 minute at the temperature of 80 ℃ to prevent the gel from penetrating through the supporting layer and entering the melt-blown layer due to the adsorption effect of melt-blown fibers; once the gel passes through the support layer, it breaks up the voids that plug the meltblown layer, reducing the ability of the screen to filter particulate matter.
And measuring the electric conduction condition of each coating after drying to judge whether to stop spraying. In the embodiment, a ZC-90 high insulation resistance measuring instrument is adopted to test the surface resistance correctly, and R is less than or equal to 105And omega, stopping spraying.
3 layers are sprayed totally, the HEPA filter screen is obtained, and each sprayed layer needs to be placed in an oven at 80 +/-5 ℃ for drying, so that the situation that the gel passes through the supporting layer and enters the melt-blown layer due to the adsorption effect of melt-blown fibers is avoided, and once the gel passes through the supporting layer, the capability of the filter screen for filtering particles is rapidly reduced, and the basic function is damaged.
And (3) carrying out S4800 cold field scanning electron microscope on the sprayed HEPA filter screen, wherein the electron microscope photo is shown in figure 1.
As can be seen from fig. 1, in the present embodiment, the conductive gel coating is attached to the surface layer of the supporting layer without penetration, the original supporting layer structure is maintained, the attachment is uniform, the connection is maintained, no obvious agglomeration is formed on the surface, and the boundary is clear.
Comparative example
The conductive gel prepared using the formulation of background art CN201410806528.8 was sprayed onto the screen in the same manner as in the examples.
The sprayed filter screen was subjected to electron microscope scanning in the same manner, and the electron microscope photograph is shown in fig. 2.
As can be seen from FIG. 2, the filter screen after spraying the conductive gel of the comparative example has large-area blockage of the gaps, caking on the surface and poor air filtration property.
Conductivity test
The conductivity of the examples and comparative examples was tested using the ZC-90 high insulation resistance tester method.
The conductivity of this example was 6.1X 104Ω~3.5×105Omega. The conductivity of the comparative example was 7.0X 106Ω~1.57×107Omega is between.
Filtration efficiency test
The air filtration performance is tested by a method of GB/T6165-2008 'high efficiency air filter performance test method efficiency and resistance', and a test instrument is an American TSI automatic filter material detector (8130).
When the filter screen is matched with the negative ion emission device for use, the negative ion emission device is positioned at the front end of the filter screen, a voltage of-3 kv is connected, negative ions can be released, the negative ions are combined with microparticles in the air, at the moment, the conductive filter screen is connected with 3kv positive electricity, and the filtering efficiency of the microparticles combined with the negative ions through the positive electricity is the single filtering efficiency mentioned in the embodiment.
The filtration efficiency of the embodiment is more than 99.997 percent; the porosity can reach more than 70 percent. Comparative example filtration efficiency was 64.375%; the porosity was 60.2203%.
In this example, the comparison ratio is about 35% higher
Wind resistance test
The air filtration performance is tested by a method of GB/T6165-2008 'high efficiency air filter performance test method efficiency and resistance', and the test instrument is an American TSI automatic filter material detector 8130.
The wind resistance in the present example was 34Pa, and the wind resistance in the comparative example was 60 Pa. This example is 43% lower than the comparative example.
Water resistance test
The life test was performed on the conductive filter mesh coated with the conductive gel and the conductive filter mesh coated with the comparative example, both the filter meshes were washed with AATCC 1993 standard detergent in the same environment, and after being taken out, the single conductive efficiency was measured according to the above method, respectively, and the efficiency of the conductive filter mesh coated with this example was 61.6%, the efficiency of the conductive filter mesh coated with the comparative example was 47.2%, and the single filter efficiency was 14.4% higher.
Claims (10)
2. the conductive gel of claim 1, wherein said conductive coating has a viscosity of 100-1At 23 ℃ of 500-2000 mPa.s.
3. The conductive gel of claim 2, wherein the conductive coating is PTT-023 manufactured by shanghai zheng nano-technology ltd.
4. The conductive gel of claim 3, wherein the aqueous epoxy resin is a SZS602 aqueous epoxy resin; the waterborne epoxy curing agent is 703 waterborne epoxy curing agent.
5. The conductive gel of claim 4, wherein the defoamer is a BYK019 defoamer.
6. The conductive gel of claim 5, wherein the aqueous epoxy resin is cationic; the conductive gel further comprises 0.8-1.5 parts by weight of nano silver ions.
7. The conductive gel according to any one of claims 1 to 6, characterized in that the preparation method of the conductive gel is:
uniformly mixing the conductive coating and the water-based epoxy resin, adding the water-based epoxy curing agent, uniformly mixing, adding the rest materials, and stirring at 300-500 rpm for 1-3 hours to obtain the conductive gel.
8. A method of making a HEPA screen using a conductive gel according to any of claims 1 to 7, comprising the steps of:
the conductive gel is filled into a spray gun, and a gas mixing type spraying method is adopted, wherein the gas inlet pressure is 0.1-0.1 MPa, and the gas inlet amount is 4-8 kg/m3The ratio of air to paint is 5: 1-9: 1, and the paint is sprayed out through a nozzle after being pressurized to 4-5 MPa;
the distance between the nozzle and the filter screen to be sprayed is 20-30 cm, and the translation speed of the nozzle is not more than 10 cm/s; spraying a layer with the thickness of 0.1-1 mm, drying at 80 +/-5 ℃ for 1-2 minutes, then spraying the next layer for 2-5 times in total to obtain the HEPA filter screen.
9. The method for preparing the HEPA filter screen according to claim 8, wherein the filter screen comprises a framework support and non-woven fabrics compounded on the framework support.
10. The preparation method of the HEPA filter screen according to claim 9, wherein the skeleton support has a gram weight of 50-90 g/m2The PET fiber fabric of (1); the non-woven fabric is a PP non-woven melt-blown fabric with the filament diameter of 3-99 microns;
dispensing glue on the framework support body, wherein the dispensing quantity is 3g/m2-8g/m2(ii) a And then pressing the non-woven fabric to obtain the filter screen.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811148200.6A CN110965347A (en) | 2018-09-29 | 2018-09-29 | Preparation method of conductive gel and HEPA filter screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811148200.6A CN110965347A (en) | 2018-09-29 | 2018-09-29 | Preparation method of conductive gel and HEPA filter screen |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110965347A true CN110965347A (en) | 2020-04-07 |
Family
ID=70027344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811148200.6A Pending CN110965347A (en) | 2018-09-29 | 2018-09-29 | Preparation method of conductive gel and HEPA filter screen |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110965347A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101691470A (en) * | 2009-10-12 | 2010-04-07 | 东莞市艾斯迪新材料有限公司 | Conductive and fire-retardant waterborne coating |
CN102380274A (en) * | 2011-08-18 | 2012-03-21 | 朗逸环保科技(上海)有限公司 | Air purifying equipment and purifying method thereof |
CN103469555A (en) * | 2013-09-23 | 2013-12-25 | 青岛大学 | Preparation method of ultraviolet-proof antistatic graphene coating textile fabric |
US8911859B1 (en) * | 2010-11-05 | 2014-12-16 | Lockheed Martin Corporation | Carbon nanotube material and method of making the same |
CN105778673A (en) * | 2014-12-22 | 2016-07-20 | 中国中化股份有限公司 | Aqueous conductive paint, preparation method and applications thereof |
CN106046982A (en) * | 2016-06-30 | 2016-10-26 | 嘉兴市高正高分子材料有限公司 | High-dispersity water-based carbon nanotube conductive slurry |
CN207750034U (en) * | 2017-12-25 | 2018-08-21 | 东营俊富净化科技有限公司 | A kind of composite material of haze |
-
2018
- 2018-09-29 CN CN201811148200.6A patent/CN110965347A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101691470A (en) * | 2009-10-12 | 2010-04-07 | 东莞市艾斯迪新材料有限公司 | Conductive and fire-retardant waterborne coating |
US8911859B1 (en) * | 2010-11-05 | 2014-12-16 | Lockheed Martin Corporation | Carbon nanotube material and method of making the same |
CN102380274A (en) * | 2011-08-18 | 2012-03-21 | 朗逸环保科技(上海)有限公司 | Air purifying equipment and purifying method thereof |
CN103469555A (en) * | 2013-09-23 | 2013-12-25 | 青岛大学 | Preparation method of ultraviolet-proof antistatic graphene coating textile fabric |
CN105778673A (en) * | 2014-12-22 | 2016-07-20 | 中国中化股份有限公司 | Aqueous conductive paint, preparation method and applications thereof |
CN106046982A (en) * | 2016-06-30 | 2016-10-26 | 嘉兴市高正高分子材料有限公司 | High-dispersity water-based carbon nanotube conductive slurry |
CN207750034U (en) * | 2017-12-25 | 2018-08-21 | 东营俊富净化科技有限公司 | A kind of composite material of haze |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Liu et al. | Facile electrospun polyacrylonitrile/poly (acrylic acid) nanofibrous membranes for high efficiency particulate air filtration | |
CN101816856A (en) | Antistatic filtering cloth in surface filtering mode for dust collector | |
US10428184B2 (en) | Method for producing a superhydrophobic membrane or surface coating of a substrate | |
CN109954329B (en) | Plant fiber self-supporting graphene haze-proof filter layer material and preparation method and application thereof | |
CN107486033B (en) | Bacterial cellulose nanofiber composite membrane for air filtration and preparation method thereof | |
CN105396563B (en) | The preparation method of high adsorption cellulose diacetate Combined Electrostatic spinning nano fibre ordered porous thin-film | |
CN105536349B (en) | A kind of nanoporous aerogel material and preparation method for air filtration | |
JP2014151293A (en) | Filter cloth for dust catcher | |
CN101829453A (en) | Preparation method of high-temperature-resistant filtering material with high filtering efficiency | |
KR20200052687A (en) | a filter having a super water-repellent and super oil-repellent function and a device for preparation thereof | |
CN112263877A (en) | Air filter material and filter element and use | |
CN111254753A (en) | Efficient water-resistant air filtering material and preparation method thereof | |
CN110965347A (en) | Preparation method of conductive gel and HEPA filter screen | |
CN110964401A (en) | Conductive gel, preparation method thereof and preparation method of HEPA filter screen | |
CN101511485B (en) | Electret finish | |
JP2017060932A (en) | Filter paper for filter and production method of the same | |
EP2433694A1 (en) | Process for producing a filter component, electrospinning process for producing a nanofibrous nonwoven, and process for increasing the cohesion of a nanofibrous nonwoven | |
CN110965337A (en) | Conductive gel and HEPA filter screen preparation method | |
CN110965390A (en) | Coating, preparation method of coating and preparation method of HEPA filter screen | |
KR20190123010A (en) | Manufacturing method of fine dust filter | |
CN113832763B (en) | Production equipment, production system and production process of glass fiber composite filter material | |
JP2015040366A (en) | Filter medium for air filter including nanofibers | |
JP2012081389A (en) | Nonwoven filter medium for filter, method for manufacturing the same, and air filter | |
KR102376501B1 (en) | Composite membrane filter for fine dust collection and manufacturing method thereof | |
KR20230063679A (en) | Method for manufacturing antistatic bag filter using large area electrostatic spray and the antistatic bag filter manufactured thereby |
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: 20200407 |
|
RJ01 | Rejection of invention patent application after publication |