CN111644049A - Catalytic decomposition formaldehyde material with fiber surface porous structure and purifier thereof - Google Patents
Catalytic decomposition formaldehyde material with fiber surface porous structure and purifier thereof Download PDFInfo
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- CN111644049A CN111644049A CN202010373347.6A CN202010373347A CN111644049A CN 111644049 A CN111644049 A CN 111644049A CN 202010373347 A CN202010373347 A CN 202010373347A CN 111644049 A CN111644049 A CN 111644049A
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- manganese oxide
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 192
- 239000000835 fiber Substances 0.000 title claims abstract description 64
- 238000003421 catalytic decomposition reaction Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 title claims abstract description 29
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 146
- 239000004005 microsphere Substances 0.000 claims abstract description 31
- 239000012528 membrane Substances 0.000 claims abstract description 26
- 239000002121 nanofiber Substances 0.000 claims abstract description 26
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(2+);cobalt(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 230000001070 adhesive effect Effects 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- WOUUPOGSRKMPQM-WCCKRBBISA-N 2-(methylamino)acetic acid (2S)-pyrrolidine-2-carboxylic acid Chemical compound CNCC(O)=O.OC(=O)[C@@H]1CCCN1 WOUUPOGSRKMPQM-WCCKRBBISA-N 0.000 claims abstract description 9
- 229920001661 Chitosan Polymers 0.000 claims abstract description 9
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012153 distilled water Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 239000004611 light stabiliser Substances 0.000 claims description 10
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 6
- 238000010041 electrostatic spinning Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 4
- -1 polyoxypropylene glycerol Polymers 0.000 claims description 4
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 3
- BSWXAWQTMPECAK-UHFFFAOYSA-N 6,6-diethyloctyl dihydrogen phosphate Chemical compound CCC(CC)(CC)CCCCCOP(O)(O)=O BSWXAWQTMPECAK-UHFFFAOYSA-N 0.000 claims description 3
- 239000005639 Lauric acid Substances 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- RBNPOMFGQQGHHO-UHFFFAOYSA-N glyceric acid Chemical compound OCC(O)C(O)=O RBNPOMFGQQGHHO-UHFFFAOYSA-N 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 claims description 3
- 229960001860 salicylate Drugs 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 235000021314 Palmitic acid Nutrition 0.000 claims description 2
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 2
- 229920005822 acrylic binder Polymers 0.000 claims 1
- QXLPXWSKPNOQLE-UHFFFAOYSA-N methylpentynol Chemical compound CCC(C)(O)C#C QXLPXWSKPNOQLE-UHFFFAOYSA-N 0.000 claims 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 6
- QNVRIHYSUZMSGM-UHFFFAOYSA-N hexan-2-ol Chemical compound CCCCC(C)O QNVRIHYSUZMSGM-UHFFFAOYSA-N 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000003522 acrylic cement Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 206010008479 Chest Pain Diseases 0.000 description 1
- 201000004624 Dermatitis Diseases 0.000 description 1
- 206010013952 Dysphonia Diseases 0.000 description 1
- 206010052140 Eye pruritus Diseases 0.000 description 1
- 208000010473 Hoarseness Diseases 0.000 description 1
- 208000017604 Hodgkin disease Diseases 0.000 description 1
- 208000021519 Hodgkin lymphoma Diseases 0.000 description 1
- 208000010747 Hodgkins lymphoma Diseases 0.000 description 1
- 208000034578 Multiple myelomas Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010035226 Plasma cell myeloma Diseases 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 208000025113 myeloid leukemia Diseases 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 206010041232 sneezing Diseases 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
Classifications
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- B01J35/51—
-
- B01J35/60—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
- B01D2253/1124—Metal oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/2073—Manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20746—Cobalt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Abstract
The invention discloses a catalytic decomposition formaldehyde material with a porous structure on the surface of fiber and a purifier thereof, wherein the catalytic decomposition formaldehyde material comprises a carrier and a catalytic decomposition coating coated on the carrier, a plurality of air holes are distributed on the carrier, and the catalytic decomposition coating is composed of the following raw materials in parts by weight: manganese oxide fiber microspheres, methylglycine proline, chitosan quaternary ammonium salt, an adhesive, nano titanium dioxide, nano cobaltosic oxide, distilled water and an auxiliary agent; the preparation method of the manganese oxide fiber microspheres comprises the following steps: the manganese oxide fiber bundle strips are formed by twisting and gathering manganese oxide fiber membranes with the width of 1.5m and randomly distributed internal fibers, and then the manganese oxide fiber bundle strips are cut off and extruded into porous structure nanofiber microspheres. Because a large number of micropores exist on the surface and inside of the manganese oxide fiber microsphere with high porosity in the coating, the material for catalytically decomposing formaldehyde can quickly adsorb formaldehyde in air for catalytic decomposition, and the formaldehyde removal rate is good.
Description
Technical Field
The invention relates to the technical field of purification materials, in particular to a formaldehyde catalytic decomposition material with a porous structure on the surface of fibers and a purifier thereof.
Background
Formaldehyde, also known as formaldehyde. Colorless gas, has special pungent odor, and has stimulating effect on eyes and nose. The main hazard of formaldehyde is manifested by irritation of the skin mucosa. When formaldehyde reaches a certain concentration indoors, people feel uncomfortable, and the formaldehyde concentration of more than 0.08m < 3 > can cause red eyes, itchy eyes, uncomfortable or painful throats, hoarseness, sneezing, chest distress, asthma, dermatitis and the like. The newly decorated room has high formaldehyde content and is the main cause of many diseases. Chronic exposure to formaldehyde increases the chances of developing particular cancers such as hodgkin's lymphoma, multiple myeloma, and myeloid leukemia.
Formaldehyde is a substance which is harmful to human bodies in gaseous pollutants. In the removal of formaldehyde by chemical filtration, the use of manganese dioxide as a formaldehyde decomposition catalyst in metal oxides has been considered a viable and in some respects advantageous approach. Currently, manganese dioxide as a formaldehyde decomposition catalyst is limited to nano-sized manganese dioxide, so that the specific surface area is sufficient to achieve acceptable formaldehyde removal efficiency of the formaldehyde decomposition catalyst.
However, the formaldehyde catalytic decomposition material in the prior art still has low formaldehyde removal efficiency, and is difficult to achieve the purpose of efficiently purifying formic acid pollutants contained in the air.
Disclosure of Invention
The invention aims to provide a formaldehyde catalytic decomposition material with a fiber surface porous structure and a purifier thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the catalytic decomposition formaldehyde material with the porous structure on the surface of the fiber comprises a carrier and a catalytic decomposition coating coated on the carrier, wherein a plurality of air holes are distributed on the carrier, and the catalytic decomposition coating is composed of the following raw materials in parts by weight: 56-60 parts of manganese oxide fiber microspheres, 13-18 parts of methylglycine proline, 2-5 parts of chitosan quaternary ammonium salt, 25-30 parts of adhesive, 17-20 parts of nano titanium dioxide, 7-11 parts of nano cobaltosic oxide, 35-40 parts of distilled water and 3-5 parts of auxiliary agent;
the preparation method of the manganese oxide fiber microspheres comprises the following steps: 1) preparing a flexible manganese oxide nanofiber membrane in an electrostatic spinning mode; 2) continuously unwinding and feeding the flexible manganese oxide nanofiber membrane into the conical cabin, gathering the flexible manganese oxide nanofiber membrane by a twisting device in the conical cabin, and twisting the flexible manganese oxide nanofiber membrane into manganese oxide fibers; 3) and cutting the manganese oxide fiber, putting the cut manganese oxide fiber into a spherical cabin body, and performing high-pressure extrusion to obtain the manganese oxide microsphere.
As a further scheme of the invention: the adhesive is acrylic adhesive or polyurethane adhesive.
As a further scheme of the invention: the auxiliary agent comprises a light stabilizer, a defoaming agent and a dispersing agent.
As a further scheme of the invention: the light stabilizer is one or a mixture of more of o-hydroxybenzophenone, benzotriazole, salicylate and triazine.
As a further scheme of the invention: the defoaming agent is one or a mixture of more of lauric acid, palmitic acid, stearic acid and polyoxypropylene glycerol ether.
As a further scheme of the invention: the dispersant is one or more of triethyl hexyl phosphoric acid, sodium dodecyl sulfate or methyl amyl alcohol.
As a further scheme of the invention: the catalytic decomposition coating comprises the following raw materials in parts by weight: 58 parts of manganese oxide fiber microspheres, 15 parts of methylglycine proline, 3 parts of chitosan quaternary ammonium salt, 27 parts of adhesive, 19 parts of nano titanium dioxide, 8 parts of nano cobaltosic oxide, 37 parts of distilled water and 4 parts of auxiliary agent.
As a further scheme of the invention: the width of the flexible manganese oxide nanofiber membrane is 1.2-1.5m, and the diameter of the manganese oxide microsphere is 0.5-1.3 mm.
A purifier adopts the formaldehyde catalytic decomposition material with the fiber surface porous structure for catalytic decomposition of formaldehyde.
Compared with the prior art, the invention has the beneficial effects that: the catalytic decomposition coating contains the manganese oxide fiber microspheres, the manganese oxide fiber microspheres contain a large number of microporous structures, and the large number of microporous structures are favorable for quickly adsorbing formaldehyde in air, so that the formaldehyde is further decomposed, and the formaldehyde removal capability is greatly improved; the filter element or the filter screen is applied to a purifier, airflow is in contact with the surface of the manganese oxide fiber microsphere to absorb and decompose formaldehyde in the airflow, and the airflow can permeate into the manganese oxide fiber microsphere, so that functional substances in the manganese oxide fiber microsphere can absorb and decompose the formaldehyde into water and carbon dioxide, and the formaldehyde removal capability is greatly improved; the amino group of the methylglycine proline can be rapidly combined with formaldehyde to generate a hydroxymethyl compound; the rate of reaction with formaldehyde can be further improved by matching with the chitosan quaternary ammonium salt; meanwhile, the nano titanium dioxide and the nano cobaltosic oxide can also be used for further catalyzing and decomposing formaldehyde. The formaldehyde catalytic decomposition material with the fiber surface porous structure can quickly adsorb formaldehyde in air for catalytic decomposition, has high formaldehyde removal rate, and can be applied to a purifier for a long time.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the catalytic decomposition formaldehyde material with the porous structure on the surface of the fiber comprises a carrier and a catalytic decomposition coating coated on the carrier, wherein the carrier adopts a fiber fabric, a plurality of air holes are distributed on the carrier, and the catalytic decomposition coating is composed of the following raw materials in parts by weight: 56 parts of manganese oxide fiber microspheres, 13 parts of methylglycine proline, 2 parts of chitosan quaternary ammonium salt, 25 parts of adhesive, 17 parts of nano titanium dioxide, 7 parts of nano cobaltosic oxide, 35 parts of distilled water and 3 parts of auxiliary agent;
the preparation method of the manganese oxide fiber microspheres comprises the following steps: 1) preparing a flexible manganese oxide nanofiber membrane in an electrostatic spinning mode; 2) continuously unwinding and feeding the flexible manganese oxide nanofiber membrane into the conical cabin, gathering the flexible manganese oxide nanofiber membrane by a twisting device in the conical cabin, and twisting the flexible manganese oxide nanofiber membrane into manganese oxide fibers; 3) and cutting the manganese oxide fiber, putting the cut manganese oxide fiber into a spherical cabin body, and performing high-pressure extrusion to obtain the manganese oxide microsphere. Wherein the width of the flexible manganese oxide nanofiber membrane is 1.2-1.5m, and the diameter of the manganese oxide microsphere is 0.5-1.3 mm.
Wherein the adhesive is acrylic adhesive. The auxiliary agent comprises a light stabilizer, a defoaming agent and a dispersing agent. The light stabilizer adopts a mixture of o-hydroxybenzophenone and benzotriazole, and the weight of the o-hydroxybenzophenone accounts for 45%. The defoaming agent adopts stearic acid. The dispersing agent adopts triethyl hexyl phosphoric acid.
The purifier adopts the formaldehyde catalytic decomposition material with the fiber surface porous structure for catalytic decomposition of formaldehyde.
Example 2:
the catalytic decomposition formaldehyde material with the porous structure on the surface of the fiber comprises a carrier and a catalytic decomposition coating coated on the carrier, wherein the carrier adopts a fiber fabric, a plurality of air holes are distributed on the carrier, and the catalytic decomposition coating is composed of the following raw materials in parts by weight: 60 parts of manganese oxide fiber microspheres, 18 parts of methylglycine proline, 5 parts of chitosan quaternary ammonium salt, 30 parts of adhesive, 20 parts of nano titanium dioxide, 11 parts of nano cobaltosic oxide, 40 parts of distilled water and 5 parts of auxiliary agent;
the preparation method of the manganese oxide fiber microspheres comprises the following steps: 1) preparing a flexible manganese oxide nanofiber membrane in an electrostatic spinning mode; 2) continuously unwinding and feeding the flexible manganese oxide nanofiber membrane into the conical cabin, gathering the flexible manganese oxide nanofiber membrane by a twisting device in the conical cabin, and twisting the flexible manganese oxide nanofiber membrane into manganese oxide fibers; 3) and cutting the manganese oxide fiber, putting the cut manganese oxide fiber into a spherical cabin body, and performing high-pressure extrusion to obtain the manganese oxide microsphere. Wherein the width of the flexible manganese oxide nanofiber membrane is 1.2-1.5m, and the diameter of the manganese oxide microsphere is 0.5-1.3 mm.
Wherein the adhesive is a polyurethane adhesive. The auxiliary agent comprises a light stabilizer, a defoaming agent and a dispersing agent. The light stabilizer adopts salicylate. The antifoaming agent adopts lauric acid. The dispersing agent adopts sodium dodecyl sulfate.
A purifier adopts the formaldehyde catalytic decomposition material with the fiber surface porous structure for catalytic decomposition of formaldehyde.
Example 3:
the utility model provides a catalytic decomposition formaldehyde material of fibre surface porous structure, includes carrier and the catalytic decomposition coating of coating on the carrier, and the carrier adopts metal filter screen, it is provided with a plurality of bleeder vents to distribute on the carrier, the catalytic decomposition coating comprises following specific parts by weight's raw materials: 58 parts of manganese oxide fiber microspheres, 15 parts of methylglycine proline, 3 parts of chitosan quaternary ammonium salt, 27 parts of adhesive, 19 parts of nano titanium dioxide, 8 parts of nano cobaltosic oxide, 37 parts of distilled water and 4 parts of auxiliary agent;
the preparation method of the manganese oxide fiber microspheres comprises the following steps: 1) preparing a flexible manganese oxide nanofiber membrane in an electrostatic spinning mode; 2) continuously unwinding and feeding the flexible manganese oxide nanofiber membrane into the conical cabin, gathering the flexible manganese oxide nanofiber membrane by a twisting device in the conical cabin, and twisting the flexible manganese oxide nanofiber membrane into manganese oxide fibers; 3) and cutting the manganese oxide fiber, putting the cut manganese oxide fiber into a spherical cabin body, and performing high-pressure extrusion to obtain the manganese oxide microsphere. Wherein the width of the flexible manganese oxide nanofiber membrane is 1.2-1.5m, and the diameter of the manganese oxide microsphere is 0.5-1.3 mm.
Wherein the adhesive is acrylic adhesive. The auxiliary agent comprises a light stabilizer, a defoaming agent and a dispersing agent. The light stabilizer adopts triazine. The defoaming agent is polyoxypropylene glycerol ether. The dispersant adopts methyl amyl alcohol.
A purifier adopts the formaldehyde catalytic decomposition material with the fiber surface porous structure for catalytic decomposition of formaldehyde.
The materials of each example were tested for their effect on catalytic decomposition of formaldehyde by the following procedure:
1. cutting the material for catalytic decomposition of formaldehyde of examples 1-3 into test blocks of 10cm × 10cm, selecting some commercial filter screen for catalytic decomposition of formaldehyde, and cutting into comparison blocks of 10cm × 10 cm;
2. capturing formaldehyde-containing air with 4 sets of plastic bags, extracting the gas in the plastic bags with a sampler, testing the concentration of formaldehyde in the gas using a liquid chromatograph, and recording as C1;
3. the test block and the comparative block of examples 1 to 3 were placed in respective plastic bags, and after treatment with ultraviolet irradiation for 30min, the gas in the plastic bags was extracted with a sampler, and the concentration of formaldehyde in the gas was measured with a liquid chromatograph and recorded as C2;
4. and (3) calculating the result: the formaldehyde removal rate was (C1-C2)/C1X 100%, and the results are shown in the following table.
| Test example | Example 1 | Example 2 | Example 3 | Comparative example |
| Formaldehyde removal rate (%) | 92 | 94 | 93 | 81 |
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. The catalytic decomposition formaldehyde material with the porous structure on the surface of the fiber is characterized by comprising a carrier and a catalytic decomposition coating coated on the carrier, wherein a plurality of air holes are distributed on the carrier, and the catalytic decomposition coating is composed of the following raw materials in parts by weight: 56-60 parts of manganese oxide fiber microspheres, 13-18 parts of methylglycine proline, 2-5 parts of chitosan quaternary ammonium salt, 25-30 parts of adhesive, 17-20 parts of nano titanium dioxide, 7-11 parts of nano cobaltosic oxide, 35-40 parts of distilled water and 3-5 parts of auxiliary agent;
the preparation method of the manganese oxide fiber microspheres comprises the following steps: 1) preparing a flexible manganese oxide nanofiber membrane in an electrostatic spinning mode; 2) continuously unwinding and feeding the flexible manganese oxide nanofiber membrane into the conical cabin, gathering the flexible manganese oxide nanofiber membrane by a twisting device in the conical cabin, and twisting the flexible manganese oxide nanofiber membrane into manganese oxide fibers; 3) and cutting the manganese oxide fiber, putting the cut manganese oxide fiber into a spherical cabin body, and performing high-pressure extrusion to obtain the manganese oxide microsphere.
2. The formaldehyde decomposing catalyst material with a porous fiber surface structure as claimed in claim 1, wherein the binder is an acrylic binder or a polyurethane binder.
3. The material for catalyzing and decomposing formaldehyde according to the fiber surface porous structure, which is claimed in claim 1, wherein the auxiliary agent comprises a light stabilizer, a defoaming agent and a dispersing agent.
4. The material for catalyzing and decomposing formaldehyde with the porous structure on the surface of the fiber as claimed in claim 3, wherein the light stabilizer is one or more of o-hydroxybenzophenone, benzotriazole, salicylate and triazine.
5. The material for catalyzing and decomposing formaldehyde with the porous structure on the surface of the fiber as claimed in claim 3, wherein the antifoaming agent is one or more of lauric acid, palmitic acid, stearic acid and polyoxypropylene glycerol ether.
6. The material for catalytic decomposition of formaldehyde with a porous structure on the surface of fiber as claimed in claim 3, wherein the dispersant is one or more of triethylhexylphosphoric acid, sodium dodecyl sulfate or methylpentanol.
7. The material for catalytic decomposition of formaldehyde with a porous structure on the surface of fiber according to claim 1, wherein the catalytic decomposition coating comprises the following raw materials in parts by weight: 58 parts of manganese oxide fiber microspheres, 15 parts of methylglycine proline, 3 parts of chitosan quaternary ammonium salt, 27 parts of adhesive, 19 parts of nano titanium dioxide, 8 parts of nano cobaltosic oxide, 37 parts of distilled water and 4 parts of auxiliary agent.
8. The material for catalyzing and decomposing formaldehyde with the porous structure on the surface of the fiber as claimed in claim 1, wherein the width of the flexible manganese oxide nanofiber membrane is 1.2-1.5m, and the diameter of the manganese oxide microsphere is 0.5-1.3 mm.
9. A purifier, characterized in that the formaldehyde catalytic decomposition material with the fiber surface porous structure according to any one of claims 1 to 8 is used for catalytic decomposition of formaldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Application publication date: 20200911 |