CN105854628A - Technology for processing air filter membranes - Google Patents
Technology for processing air filter membranes Download PDFInfo
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- CN105854628A CN105854628A CN201610295764.7A CN201610295764A CN105854628A CN 105854628 A CN105854628 A CN 105854628A CN 201610295764 A CN201610295764 A CN 201610295764A CN 105854628 A CN105854628 A CN 105854628A
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- 239000012528 membrane Substances 0.000 title claims abstract description 53
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- -1 polypropylene Polymers 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 28
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229920002301 cellulose acetate Polymers 0.000 claims abstract description 23
- 239000004698 Polyethylene Substances 0.000 claims abstract description 16
- 239000004743 Polypropylene Substances 0.000 claims abstract description 16
- 239000003822 epoxy resin Substances 0.000 claims abstract description 16
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 16
- 229920000573 polyethylene Polymers 0.000 claims abstract description 16
- 229920001155 polypropylene Polymers 0.000 claims abstract description 16
- 229920001634 Copolyester Polymers 0.000 claims abstract description 12
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 12
- 229940005605 valeric acid Drugs 0.000 claims abstract description 12
- 239000004952 Polyamide Substances 0.000 claims abstract description 11
- 229920002647 polyamide Polymers 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000010408 film Substances 0.000 claims description 50
- 238000001914 filtration Methods 0.000 claims description 30
- 238000007747 plating Methods 0.000 claims description 30
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 15
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 12
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 10
- 238000005240 physical vapour deposition Methods 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 238000007711 solidification Methods 0.000 claims description 10
- 230000008023 solidification Effects 0.000 claims description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 10
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000005030 aluminium foil Substances 0.000 claims description 5
- 229910001882 dioxygen Inorganic materials 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 238000004544 sputter deposition Methods 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract 2
- 229920001223 polyethylene glycol Polymers 0.000 abstract 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 37
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000007743 anodising Methods 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical compound CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- 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
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0037—Organic membrane manufacture by deposition from the gaseous phase, e.g. CVD, PVD
-
- 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
- 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/08—Polysaccharides
- B01D71/10—Cellulose; Modified cellulose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/46—Epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/48—Polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/56—Polyamides, e.g. polyester-amides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/04—Hydrophobization
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention discloses a technology for processing air filter membranes. The technology includes steps of preparing, by weight, polyethylene glycol terephthalate, polypropylene, polyethylene, polyamide, acetyl celluloses, cellulose acetate, polyhydroxbutyrate valeric acid copolyester, sodium dodecyl sulfate and epoxy resin; mixing the polyethylene glycol terephthalate, the polypropylene, the polyethylene, the acetyl celluloses, the polyhydroxbutyrate valeric acid copolyester and the sodium dodecyl sulfate with one another to obtain mixtures, stirring and mixing the mixtures again and allowing the mixtures to stand still in environments at the temperatures of 40-45 Celsius degrees for 1-2 hours; allowing thin membranes to stand still in environments at the temperatures of 80-95 Celsius degrees for 8-10 hours and curing the thin membranes; cooling the cured thin membranes until the temperatures of the thin membranes reach the room temperature, allowing the thin membranes to stand still for 24 hours and secondarily curing the thin membranes to obtain the air filter membranes. The technology has the advantages of good filter effect, low cost and simple technological process.
Description
Technical field
The present invention relates to air purification field, particularly to the processing technology of a kind of air-filtering membrane.
Background technology
Gas filtration film is typically all the filter paper of cloth-like, is fabricated to bellows, folding, rolling etc. according to different applied field credit unions and filters filter material.Existing gas filtration membrane filtration layer material mainly has: polypropylene (PP), polytetrafluoroethylene (PTFE), polyethylene (PE), Kynoar (PVDF) etc., gas filtration film mainly has base material and filter course to be composited, conventional combination process is that PUR is bonding, the non-woven fabrics that its base material is mainly made up of materials such as polypropylene (PP), PET (PET), polyethylene (PE).
Gas filtration film is usually used in the cleaning of the gas of particular surroundings, often containing steam, oil point, hydrophilizing substances, impurity etc. in these gases.Due to the characteristic of membrane material, the most hydrophobic membrane material just can be breathed freely, and once material is hydrophilic, then can not breathe freely, and therefore gas filtration film must select hydrophobic material.
At present, in existing hydrophobic material, the hydrophobic performance of PTFE is best, and PVDF takes second place, but all there is endurance issues.Long-Time Service, it is found that material is slowly by hydrophilic phenomenon, once hydrophilic, permeability declines.Simultaneously, due to reasons such as production technologies, domestic existing gas filtration film is all bonding compound by PUR, it not only can affect the gas permeability of product, and in use, PUR can slowly occur swelling due to the effect of polar solvent such as acetone, dimethylacetylamide (DMAC) etc., cause combined strength bination between base material and filter course the highest, layering is easily occurred to disengage, additionally, it is in some tolerance occasion, and such as occasions such as high temperature, strong acid, highly basic, base material and filter course are the most easily layered disengagement.
Summary of the invention
The technical problem to be solved is to provide the processing technology of a kind of air-filtering membrane, good filtration effect and low cost, and technological process is simple, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the present invention provides following technical scheme: the processing technology of a kind of air-filtering membrane, comprises the following steps:
(1) following material is got out by weight: the polyethylene terephthalate of 12-18 weight portion, the polypropylene of 23-25 weight portion, the polyethylene of 11-15 weight portion, the polyamide of 22-28 weight portion, the cellulose acetate of 5-11 weight portion, the cellulose acetate of 5-8 weight portion, poly butyric valeric acid copolyesters, the dodecyl sodium sulfate of 10-13 weight portion and the epoxy resin of 10-13 weight portion of 21-25 weight portion；
(2) polyethylene terephthalate, polypropylene, polyethylene, cellulose acetate, poly butyric valeric acid copolyesters and dodecyl sodium sulfate are mixed, then in the environment of 45-55 degree Celsius, stand 20-24 hour；
(3) mixture that step (2) obtains is again stirring for mixing, in the environment of 40-45 degree Celsius, stands 1-2 hour；
(4) epoxy resin of full weight portion stretches, and widens, and smooth makes epoxy resin thin film；
(5), after mixture step (3) obtained mixes with the cellulose acetate of full weight portion, again stir with the polyamide of full weight portion and mix；
(6) mixture that step (5) obtains is coated on the resin film that step (4) obtains uniformly, forms film；
(7) film after step (6) being completed stands in being positioned over the environment of 80-95 degree Celsius and solidifies for 8-10 hour；
(8) it is down to after solidification obtain filter membrane after room temperature stands secondary solidification in 24 hours.
Preferably, aluminium foil is fitted in filter membrane surface by described conducting resinl.
Preferably, filter membrane is put in physical vapour deposition (PVD) stove, carry out reaction magnetocontrol sputtering under vacuum and obtain film plating layer filter membrane.
Preferably, the coating process condition of described film plating layer is: medium frequency magnetron sputtering titanium target, source current 0.5--10A, bias 20--80V, dutycycle 40%--80%, argon gas flow velocity 50--100SCCM, oxygen gas flow rate 100--300SCCM, time 10--50min, the coating process condition of nano-silver layer can be: medium frequency magnetron sputtering silver target, source current 0.5--2A, bias 20--80V, dutycycle 40%--80%, argon gas flow velocity 50--150SCCM, time 2--10mi.
Preferably, its structure of described film plating layer composition is by being the most once nano titanium oxide film plating layer, centre one layer of silver layer and the superiors' nano titanium oxide film plating layer for bottom.
Preferably, the temperature that described film plating layer filter membrane is heat-treated is 400--500 DEG C, and the time of heat treatment is 4--8h.
Using above technical scheme to provide the benefit that: the processing technology low cost of air-filtering membrane of the present invention, selected raw material is easy to get；Good filtration effect and low cost, technological process is simple, easy to make；Using environmentally friendly solvent and additive, for green product, and keep higher membrane flux and rejection, filtering accuracy is high, and after filtration, water quality is good；Heat resistance is good, can be used in 500 DEG C of interior filtration links；Owing to being ceramic coating layer, its excellent anti-corrosion performance；Pore size and pitch of holes can be adjusted by anodizing solution and technique, and micropore is evenly distributed, high-sequential, can be used for secondary filter.
Detailed description of the invention
The preferred embodiment of the present invention is described below.
Embodiment 1:
The processing technology of a kind of air-filtering membrane, comprises the following steps:
(1) following material is got out by weight: the polyethylene terephthalate of 12 weight portions, the polypropylene of 23 weight portions, the polyethylene of 11 weight portions, the polyamide of 22 weight portions, the cellulose acetate of 5 weight portions, the cellulose acetate of 5 weight portions, poly butyric valeric acid copolyesters, the dodecyl sodium sulfate of 10 weight portions and the epoxy resin of 10-weight portion of 21 weight portions；
(2) polyethylene terephthalate, polypropylene, polyethylene, cellulose acetate, poly butyric valeric acid copolyesters and dodecyl sodium sulfate are mixed, then in the environment of 45 degrees Celsius, stand 20 hours；
(3) mixture that step (2) obtains is again stirring for mixing, in the environment of 40-degree Celsius, stands 1 hour；
(4) epoxy resin of full weight portion stretches, and widens, and smooth makes epoxy resin thin film；
(5), after mixture step (3) obtained mixes with the cellulose acetate of full weight portion, again stir with the polyamide of full weight portion and mix；
(6) mixture that step (5) obtains is coated on the resin film that step (4) obtains uniformly, forms film；
(7) film after step (6) being completed stands in being positioned over the environment of 80 degrees Celsius and solidifies for 8 hours；
(8) it is down to after solidification obtain filter membrane after room temperature stands secondary solidification in 24 hours.
With conducting resinl, aluminium foil is fitted in filter membrane surface, filter membrane is put in physical vapour deposition (PVD) stove, carry out reaction magnetocontrol sputtering under vacuum and obtain film plating layer filter membrane；The coating process condition of film plating layer is: medium frequency magnetron sputtering titanium target, source current 0.5A, bias 20V, dutycycle 40%, argon gas flow velocity 50SCCM, oxygen gas flow rate 100SCCM, time 10min, the coating process condition of nano-silver layer can be: medium frequency magnetron sputtering silver target, source current 0.5A, bias 20V, dutycycle 40%, argon gas flow velocity 50SCCM, time 2min, its structure of film plating layer composition is by being the most once nano titanium oxide film plating layer for bottom, middle one layer of silver layer and the superiors' nano titanium oxide film plating layer, the temperature that film plating layer filter membrane is heat-treated is 400 DEG C, the time being heat-treated is 4h.
Embodiment 2:
The processing technology of a kind of air-filtering membrane, comprises the following steps:
(1) following material is got out by weight: the polyethylene terephthalate of 18 weight portions, the polypropylene of 25 weight portions, the polyethylene of 15 weight portions, the polyamide of 28 weight portions, the cellulose acetate of 11 weight portions, the cellulose acetate of 8 weight portions, poly butyric valeric acid copolyesters, the dodecyl sodium sulfate of 13 weight portions and the epoxy resin of 13 weight portions of 25 weight portions；
(2) polyethylene terephthalate, polypropylene, polyethylene, cellulose acetate, poly butyric valeric acid copolyesters and dodecyl sodium sulfate are mixed, then in the environment of 55 degrees Celsius, stand 24 hours；
(3) mixture that step (2) obtains is again stirring for mixing, in the environment of 45 degrees Celsius, stands 2 hours；
(4) epoxy resin of full weight portion stretches, and widens, and smooth makes epoxy resin thin film；
(5), after mixture step (3) obtained mixes with the cellulose acetate of full weight portion, again stir with the polyamide of full weight portion and mix；
(6) mixture that step (5) obtains is coated on the resin film that step (4) obtains uniformly, forms film；
(7) film after step (6) being completed stands in being positioned over the environment of 95 degrees Celsius and solidifies for 10 hours；
(8) it is down to after solidification obtain filter membrane after room temperature stands secondary solidification in 24 hours.
With conducting resinl, aluminium foil is fitted in filter membrane surface, filter membrane is put in physical vapour deposition (PVD) stove, carry out reaction magnetocontrol sputtering under vacuum and obtain film plating layer filter membrane；The coating process condition of film plating layer is: medium frequency magnetron sputtering titanium target, source current 10A, bias 80V, dutycycle 80%, argon gas flow velocity 100SCCM, oxygen gas flow rate 300SCCM, time 50min, the coating process condition of nano-silver layer can be: medium frequency magnetron sputtering silver target, source current 2A, bias 80V, dutycycle 80%, argon gas flow velocity 150SCCM, time 10min, its structure of film plating layer composition is by being the most once nano titanium oxide film plating layer for bottom, middle one layer of silver layer and the superiors' nano titanium oxide film plating layer, the temperature that film plating layer filter membrane is heat-treated is 500 DEG C, the time being heat-treated is 8h.
Embodiment 3:
The processing technology of a kind of air-filtering membrane, comprises the following steps:
(1) following material is got out by weight: the polyethylene terephthalate of 15 weight portions, the polypropylene of 24 weight portions, the polyethylene of 13 weight portions, the polyamide of 25 weight portions, the cellulose acetate of 8 weight portions, the cellulose acetate of 6 weight portions, poly butyric valeric acid copolyesters, the dodecyl sodium sulfate of 12 weight portions and the epoxy resin of 2 weight portions of 23 weight portions；
(2) polyethylene terephthalate, polypropylene, polyethylene, cellulose acetate, poly butyric valeric acid copolyesters and dodecyl sodium sulfate are mixed, then in the environment of 50 degrees Celsius, stand 22 hours；
(3) mixture that step (2) obtains is again stirring for mixing, in the environment of 43 degrees Celsius, stands 1.5 hours；
(4) epoxy resin of full weight portion stretches, and widens, and smooth makes epoxy resin thin film；
(5), after mixture step (3) obtained mixes with the cellulose acetate of full weight portion, again stir with the polyamide of full weight portion and mix；
(6) mixture that step (5) obtains is coated on the resin film that step (4) obtains uniformly, forms film；
(7) film after step (6) being completed stands in being positioned over the environment of 88 degrees Celsius and solidifies for 9 hours；
(8) it is down to after solidification obtain filter membrane after room temperature stands secondary solidification in 24 hours.
With conducting resinl, aluminium foil is fitted in filter membrane surface, filter membrane is put in physical vapour deposition (PVD) stove, carry out reaction magnetocontrol sputtering under vacuum and obtain film plating layer filter membrane；The coating process condition of film plating layer is: medium frequency magnetron sputtering titanium target, source current 5A, bias 50V, dutycycle 60%, argon gas flow velocity 75SCCM, oxygen gas flow rate 200SCCM, time 30min, the coating process condition of nano-silver layer can be: medium frequency magnetron sputtering silver target, source current 1.5A, bias 50V, dutycycle 60%, argon gas flow velocity 100SCCM, time 6min, its structure of film plating layer composition is by being the most once nano titanium oxide film plating layer for bottom, middle one layer of silver layer and the superiors' nano titanium oxide film plating layer, the temperature that film plating layer filter membrane is heat-treated is 450 DEG C, the time being heat-treated is 6h.
The processing technology low cost of air-filtering membrane of the present invention, selected raw material is easy to get；Good filtration effect and low cost, technological process is simple, easy to make；Using environmentally friendly solvent and additive, for green product, and keep higher membrane flux and rejection, filtering accuracy is high, and after filtration, water quality is good；Heat resistance is good, can be used in 500 DEG C of interior filtration links；Owing to being ceramic coating layer, its excellent anti-corrosion performance；Pore size and pitch of holes can be adjusted by anodizing solution and technique, and micropore is evenly distributed, high-sequential, can be used for secondary filter.
Above-described is only the preferred embodiment of the present invention, it is noted that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.
Claims (6)
1. the processing technology of an air-filtering membrane, it is characterised in that comprise the following steps:
(1) following material is got out by weight: the polyethylene terephthalate of 12-18 weight portion, the polypropylene of 23-25 weight portion, the polyethylene of 11-15 weight portion, the polyamide of 22-28 weight portion, the cellulose acetate of 5-11 weight portion, the cellulose acetate of 5-8 weight portion, poly butyric valeric acid copolyesters, the dodecyl sodium sulfate of 10-13 weight portion and the epoxy resin of 10-13 weight portion of 21-25 weight portion；
(2) polyethylene terephthalate, polypropylene, polyethylene, cellulose acetate, poly butyric valeric acid copolyesters and dodecyl sodium sulfate are mixed, then in the environment of 45-55 degree Celsius, stand 20-24 hour；
(3) mixture that step (2) obtains is again stirring for mixing, in the environment of 40-45 degree Celsius, stands 1-2 hour；
(4) epoxy resin of full weight portion stretches, and widens, and smooth makes epoxy resin thin film；
(5), after mixture step (3) obtained mixes with the cellulose acetate of full weight portion, again stir with the polyamide of full weight portion and mix；
(6) mixture that step (5) obtains is coated on the resin film that step (4) obtains uniformly, forms film；
(7) film after step (6) being completed stands in being positioned over the environment of 80-95 degree Celsius and solidifies for 8-10 hour；
(8) it is down to after solidification obtain filter membrane after room temperature stands secondary solidification in 24 hours.
The processing technology of air-filtering membrane the most according to claim 1, it is characterised in that aluminium foil is fitted in filter membrane surface by described conducting resinl.
The processing technology of air-filtering membrane the most according to claim 2, it is characterised in that put into by filter membrane in physical vapour deposition (PVD) stove, carries out reaction magnetocontrol sputtering under vacuum and obtains film plating layer filter membrane.
The processing technology of air-filtering membrane the most according to claim 1, it is characterised in that described；The coating process condition of described film plating layer is: medium frequency magnetron sputtering titanium target, source current 0.5--10A, biases 20--80V, dutycycle 40%--80%, argon gas flow velocity 50--100SCCM, oxygen gas flow rate 100--300SCCM, time 10--50min, the coating process condition of nano-silver layer can be: medium frequency magnetron sputtering silver target, source current 0.5--2A, biases 20--80V, dutycycle 40%--80%, argon gas flow velocity 50--150SCCM, time 2--10mi.
The processing technology of air-filtering membrane the most according to claim 4, it is characterised in that its structure of described film plating layer composition is by being the most once nano titanium oxide film plating layer, centre one layer of silver layer and the superiors' nano titanium oxide film plating layer for bottom.
The processing technology of air-filtering membrane the most according to claim 4, it is characterised in that the temperature that described film plating layer filter membrane is heat-treated is 400--500 DEG C, and the time of heat treatment is 4--8h.
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| CN201610295764.7A CN105854628A (en) | 2016-05-06 | 2016-05-06 | Technology for processing air filter membranes |
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| CN106582124A (en) * | 2016-11-25 | 2017-04-26 | 浙江绿净环保科技有限公司 | Production process for dedusting filter bag |
| CN106731328A (en) * | 2016-11-25 | 2017-05-31 | 浙江绿净环保科技有限公司 | A kind of two-layer compound air-filtering membrane and its preparation technology |
| CN107051233A (en) * | 2017-06-14 | 2017-08-18 | 合肥易美特建材有限公司 | A kind of manufacture craft of air-filtering membrane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106582124A (en) * | 2016-11-25 | 2017-04-26 | 浙江绿净环保科技有限公司 | Production process for dedusting filter bag |
| CN106731328A (en) * | 2016-11-25 | 2017-05-31 | 浙江绿净环保科技有限公司 | A kind of two-layer compound air-filtering membrane and its preparation technology |
| US11258134B2 (en) | 2016-12-01 | 2022-02-22 | The Regents Of The University Of California | Energy providing devices and applications thereof |
| CN107051233A (en) * | 2017-06-14 | 2017-08-18 | 合肥易美特建材有限公司 | A kind of manufacture craft of air-filtering membrane |
| EP3706890A4 (en) * | 2017-11-09 | 2021-08-11 | The Regents of the University of California | ASYMMETRIC COMPOSITE MEMBRANES AND THEIR USE |
| US11541153B2 (en) | 2017-12-01 | 2023-01-03 | The Regents Of The University Of California | Biofouling resistant coatings and methods of making and using the same |
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| CN108126526A (en) * | 2018-02-08 | 2018-06-08 | 苏州甫众塑胶有限公司 | A kind of high-temperature resistant and antistatic air-filtering membrane and preparation method thereof |
| CN110917904A (en) * | 2018-09-20 | 2020-03-27 | 中国石油化工股份有限公司 | Composite reverse osmosis membrane and preparation method |
| US11807701B2 (en) | 2019-06-05 | 2023-11-07 | The Regents Of The University Of California | Biofouling resistant coatings and methods of making and using the same |
| US12109332B2 (en) | 2019-06-05 | 2024-10-08 | The Regents Of The University Of California | Biofouling resistant coatings and methods of making and using the same |
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Application publication date: 20160817 |