CN107930700B - High-efficiency deodorant - Google Patents
High-efficiency deodorant Download PDFInfo
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- CN107930700B CN107930700B CN201711256413.6A CN201711256413A CN107930700B CN 107930700 B CN107930700 B CN 107930700B CN 201711256413 A CN201711256413 A CN 201711256413A CN 107930700 B CN107930700 B CN 107930700B
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- 239000002781 deodorant agent Substances 0.000 title claims abstract description 29
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 40
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229920002635 polyurethane Polymers 0.000 claims abstract description 28
- 239000004814 polyurethane Substances 0.000 claims abstract description 28
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000011787 zinc oxide Substances 0.000 claims abstract description 20
- 229910001936 tantalum oxide Inorganic materials 0.000 claims abstract description 19
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 18
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical group [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 62
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 48
- 239000011259 mixed solution Substances 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000000243 solution Substances 0.000 claims description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000012948 isocyanate Substances 0.000 claims description 9
- 150000002513 isocyanates Chemical class 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 229910052797 bismuth Inorganic materials 0.000 claims description 6
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 6
- OEIMLTQPLAGXMX-UHFFFAOYSA-I tantalum(v) chloride Chemical compound Cl[Ta](Cl)(Cl)(Cl)Cl OEIMLTQPLAGXMX-UHFFFAOYSA-I 0.000 claims description 6
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical group [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 4
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- BQJKTUVYRXYWTJ-UHFFFAOYSA-I ethanol;pentachlorotantalum Chemical compound CCO.Cl[Ta](Cl)(Cl)(Cl)Cl BQJKTUVYRXYWTJ-UHFFFAOYSA-I 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 abstract description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 6
- 239000011120 plywood Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- 240000000411 Sansevieria trifasciata Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000010303 mechanochemical reaction Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 description 2
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- 244000099147 Ananas comosus Species 0.000 description 1
- 235000007119 Ananas comosus Nutrition 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 244000276331 Citrus maxima Species 0.000 description 1
- 235000001759 Citrus maxima Nutrition 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- HZEBHPIOVYHPMT-OUBTZVSYSA-N Polonium-210 Chemical compound [210Po] HZEBHPIOVYHPMT-OUBTZVSYSA-N 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 210000004666 bacterial spore Anatomy 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- 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
- B01J31/36—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of vanadium, niobium or tantalum
-
- 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
-
- B01J35/39—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/04—Mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
Abstract
The invention relates to a high-efficiency deodorant, which comprises an air channel, wherein the inner surface of the air channel is coated with a high-molecular deodorant, the high-molecular deodorant is prepared from 100 parts by weight of waterborne polyurethane, 10-25 parts by weight of polyacrylamide, 15-80 parts by weight of nano zinc oxide, 0.03-0.3 part by weight of hydrogen peroxide and 3-10 parts by weight of modified nano tantalum oxide, and the solid content of the waterborne polyurethane is 5-15%. The polymer deodorant can efficiently degrade various peculiar smell organic matters.
Description
Technical Field
The invention relates to a high-efficiency deodorant.
Background
The Amonian, nicotine, suspended particles, PM2.5, polonium-210 and the like in the household environment are the most widely and seriously harmful indoor air pollution and are the major causes of death in the world; formaldehyde peculiar smell brought by home decoration has negative effects of stimulation, sensitization, mutation and the like, and the health of people is greatly harmed; the household quality is greatly influenced by the mildew smell in the environment, the kitchen peculiar smell (oil smoke, acid odor and the like), the toilet peculiar smell and the like, and the carried bacterial spores, rancid oil, methyl mercaptan, methylamine, NH3 and the like cause diseases, carcinogenesis and other hazards to people.
In the prior art, a plant absorption method is often adopted, for example, plants such as sansevieria trifasciata, sansevieria trifasciata and the like, tropical fruits such as pineapples and the like, tea leaves or shaddock peels and the like are adopted to remove peculiar smell, the characteristics of absorption, fragrance covering and the like are achieved, the method is cheap and effective, but the removal speed is slow, the novel photocatalysis method mostly uses photocatalyst materials to achieve the effect of removing peculiar smell under the excitation of light, generally has certain removal and killing effects on partial organic matters and bacteria, but has poor effect and limited practicability.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-efficiency deodorant, which is prepared from 100 parts by weight of waterborne polyurethane, 10-25 parts by weight of polyacrylamide, 15-80 parts by weight of nano zinc oxide, 0.03-0.3 part by weight of hydrogen peroxide and 3-10 parts by weight of modified nano tantalum oxide, wherein the solid content of the waterborne polyurethane is 5-15%.
The polymer deodorant is prepared by the following steps:
adding 100 parts by weight of waterborne polyurethane, 15-80 parts by weight of nano zinc oxide and zirconia balls into a container, stirring at 2000-5000 rpm for 1-3 hours, filtering to remove the zirconia balls, adding 0.03-0.3 part by weight of hydrogen peroxide, and stirring at 500-1200 rpm for 1-3 hours;
adding 3-10 parts by weight of nano tantalum oxide, stirring at 500-1200 rpm for 1-3 hours, adding 10-25 parts by weight of polyacrylamide, and stirring uniformly to obtain the polymer deodorant.
The average grain diameter of the nano zinc oxide is 5-500 nanometers.
The particle size of the zirconia ball is 400-800 microns.
The modified nanometer tantalum oxide is prepared by the following steps:
dissolving 3-10 parts by weight of tantalum pentachloride in 100 parts by weight of absolute ethanol at room temperature to obtain an ethanol solution of tantalum pentachloride, and standing for 5-30 minutes;
adding 5-15 parts by weight of bismuth vanadate and 0.01-0.1 part by weight of blocked isocyanate into a tantalum pentachloride ethanol solution, and uniformly mixing to obtain a first mixed solution;
keeping stirring the first mixed solution, and dripping 100 parts by weight of ethanol aqueous solution into the first mixed solution at the speed of 3-10 ml/min;
adding N, N-dimethylformamide, keeping stirring the first mixed solution for 30 minutes, and standing at room temperature to obtain a second mixed solution;
soaking the second mixed solution in water at 30-45 ℃ for 6-24 hours, heating to 40-45 ℃, drying for 12-48 hours, heating to the sealing temperature of the blocked isocyanate, keeping the temperature for 3-10 hours, heating to 100-160 ℃, and drying to constant weight to obtain a dried product, wherein the deblocking temperature of the blocked isocyanate is higher than 50 ℃ and lower than 100 ℃;
and calcining the dried substance in a muffle furnace at the temperature of 400-500 ℃ to obtain the nano modified tantalum oxide.
The blocked isocyanate is sodium bisulfite blocked HDI.
The waterborne polyurethane can effectively adsorb organic odor on the surface and in the air, the nano zinc oxide is uniformly distributed in the waterborne polyurethane, and the adsorbed odor can be quickly decomposed by the nano tantalum oxide, so that various odor organic matters can be efficiently degraded. The capability of the composition to decompose organic substances is greatly improved through mechanochemical reaction in the crushing process. The invention uses sodium bisulfite to seal isocyanate and bismuth vanadate as doping modified compounds, and the prepared spectrum long-acting enzyme has high-efficiency capability of decomposing organic matters under weak light.
Detailed Description
Hereinafter, the present invention will be described in more detail by way of examples, but it should be understood that these examples are merely illustrative and not restrictive. The starting materials used are all commercially available, unless otherwise stated.
The present invention is described in detail below with reference to several examples.
Nano zinc oxide, huasai nano company: the average grain diameter is 9nm-10nm, and the specific surface area is 89 square meters per gram-80 square meters per gram.
Nano-silica, beijing german gold island, silicon content (%): 99.9; the average grain diameter is 30 nm; specific surface area 600 m2/g
particle morphology: spherical; appearance: white; apparent density: 0.08g/cm 3; true density: 2.2g/cm 3.
The waterborne polyurethane A1 silicon source chemical company WS-558 has a number average molecular weight of 2000 g/mol.
The waterborne polyurethane A2 silicon source chemical company WS-566, number average molecular weight 3000 g/mol.
The waterborne polyurethane A3 silicon source chemical company WS-573 has a number average molecular weight of 8000 g/mol.
Polyacrylamide, guangzhou charm nonionic Polyacrylamide (PAMN) intrinsic viscosity: 17.5-19.4 degree of hydrolysis: 22.5-27.5% from the scene chemical industry.
Nano modified tantalum oxide
Preparation of bismuth vanadate
Respectively dissolving 0.0015mol of sodium vanadate and 0.006mol of bismuth nitrate in deionized water, dropwise adding the sodium vanadate solution into the bismuth nitrate solution, stirring for 30 minutes, standing for 5 hours, placing the solution into a constant-temperature drying oven, reacting the solution at 160 ℃ for 12 hours, cooling to room temperature, continuously stirring, adding 0.01mol of hydrogen peroxide, and performing suction filtration, washing and drying to obtain bismuth vanadate powder.
Dissolving 8 parts by weight of tantalum pentachloride in 100 parts by weight of absolute ethanol at room temperature to obtain an ethanol solution of tantalum pentachloride, and standing for 15 minutes; adding 15 parts by weight of bismuth vanadate and 0.08 part by weight of sodium bisulfite closed HDI into a tantalum pentachloride ethanol solution, and uniformly mixing to obtain a first mixed solution; keeping stirring the first mixed solution, and dripping 100 parts by weight of ethanol aqueous solution into the first mixed solution at the speed of 4 ml/min; adding 30 parts by weight of N, N-dimethylformamide, keeping stirring the first mixed solution for 30 minutes, and standing at room temperature to obtain a second mixed solution; soaking the second mixed solution in water at 40 ℃ for 12 hours, heating to 45 ℃, drying for 24 hours, heating to 60 ℃, keeping for 4 hours, heating to 150 ℃, and drying to constant weight to obtain a dried substance; and calcining the dried substance in a muffle furnace at 450 ℃ to obtain the nano modified tantalum oxide photocatalytic oxidant.
Example 1
In a container of a stirring device, 100 parts by weight of waterborne polyurethane A2, 15 parts by weight of nano zinc oxide and zirconia balls are added into the container, stirring is carried out at 3000 rotating speeds for 2 hours, then the zirconia balls are filtered and removed, 0.12 part by weight of hydrogen peroxide is added, and stirring is carried out at 1000 rotating speeds for 2 hours; adding 6 parts by weight of the modified nano tantalum oxide obtained by the preparation, stirring at 1000 rotation speed for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the high-molecular deodorant.
Example 2
In a container of a stirring device, 100 parts by weight of waterborne polyurethane A2, 24 parts by weight of nano zinc oxide and zirconia balls are added into the container, stirring is carried out at 3000 rotating speeds for 2 hours, then the zirconia balls are filtered and removed, 0.27 part by weight of hydrogen peroxide is added, and stirring is carried out at 1000 rotating speeds for 2 hours; adding 9 parts by weight of the modified nano tantalum oxide prepared in the previous step, stirring at 1000 rpm for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the polymer deodorant.
Example 3
In a container of a stirring device, 100 parts by weight of waterborne polyurethane A2, 27 parts by weight of nano zinc oxide and zirconia balls are added into the container, stirring is carried out at 3000 rotating speeds for 2 hours, then the zirconia balls are filtered and removed, 0.27 part by weight of hydrogen peroxide is added, and stirring is carried out at 1000 rotating speeds for 2 hours; adding 3 parts by weight of the modified nano tantalum oxide obtained by the preparation, stirring at 1000 rotation speed for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the high-molecular deodorant.
Example 4
In a container of a stirring device, 100 parts by weight of waterborne polyurethane A2, 27 parts by weight of nano zinc oxide and zirconia balls are added into the container, stirring is carried out at 3000 rotating speeds for 2 hours, then the zirconia balls are filtered and removed, 0.27 part by weight of hydrogen peroxide is added, and stirring is carried out at 1000 rotating speeds for 2 hours; adding 3 parts by weight of P25 nanometer titanium oxide (average grain diameter is 100 nanometers), stirring at 1000 rpm for 1 hour, adding 3 parts by weight of polyacrylamide, and stirring uniformly to obtain the polymer deodorant.
Comparative example 1
The same as example 1, without adding nano zinc oxide and hydrogen peroxide, the specific implementation mode is as follows:
100 parts by weight of waterborne polyurethane A2 and 6 parts by weight of the modified nano tantalum oxide prepared above are mixed in a container of a stirring device, stirred at 1000 rpm for 1 hour, then added with 3 parts by weight of polyacrylamide and stirred uniformly to obtain the polymer deodorant.
Comparative example 2
In the same way as in example 1, without the addition of hydrogen peroxide and without the mechanochemical reaction step, the specific embodiment is as follows:
in a container of a stirring device, 100 parts by weight of waterborne polyurethane A2, 15 parts by weight of nano zinc oxide and zirconia balls are added into the container, stirring is carried out at 3000 rpm for 2 hours, and then the zirconia balls are removed by filtration; adding 6 parts by weight of the modified nano tantalum oxide obtained by the preparation, stirring at 1000 rotation speed for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the high-molecular deodorant.
Comparative example 3
The same as example 1, common nano silicon dioxide (Beijing Dekkokou gold) is added to replace nano zinc oxide, and the specific implementation mode is as follows:
in a container of a stirring device, 100 parts by weight of waterborne polyurethane A2, 15 parts by weight of nano silica (Beijing Dekko island gold) and zirconia balls are added into the container, stirred at the rotating speed of 3000 for 2 hours, filtered to remove the zirconia balls, added with 0.12 part by weight of hydrogen peroxide, and stirred at the rotating speed of 1000 for 2 hours; adding 6 parts by weight of the modified nano tantalum oxide obtained by the preparation, stirring at 1000 rotation speed for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the high-molecular deodorant.
Comparative example 4
As in example 1, there is no high-speed crushing step, and the specific embodiment is as follows:
in a container of a stirring device, 100 parts by weight of waterborne polyurethane A2, 15 parts by weight of nano zinc oxide and 0.122 part by weight of hydrogen peroxide are added into the container and stirred for 2 hours at the rotating speed of 1000; adding 6 parts by weight of the modified nano tantalum oxide obtained by the preparation, stirring at 1000 rotation speed for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the high-molecular deodorant.
Comparative example 5
The same as example 1, without adding modified nano tantalum oxide, the specific implementation mode is as follows:
in a container of a stirring device, 100 parts by weight of waterborne polyurethane A2, 15 parts by weight of nano zinc oxide and zirconia balls are added into the container, stirring is carried out at 3000 rotating speeds for 2 hours, then the zirconia balls are filtered and removed, 0.12 part by weight of hydrogen peroxide is added, and stirring is carried out at 1000 rotating speeds for 2 hours; adding 6 parts by weight of the modified nano tantalum oxide obtained by the preparation, stirring at 1000 rotation speed for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the high-molecular deodorant.
Example 5
As in example 1, 100 parts by weight of the aqueous polyurethane a2 was replaced with 100 parts by weight of the aqueous polyurethane a 1.
In a container of a stirring device, 100 parts by weight of waterborne polyurethane A1, 15 parts by weight of nano zinc oxide and zirconia balls are added into the container, stirring is carried out at 3000 rotating speeds for 2 hours, then the zirconia balls are filtered and removed, 0.12 part by weight of hydrogen peroxide is added, and stirring is carried out at 1000 rotating speeds for 2 hours; adding 6 parts by weight of the modified nano tantalum oxide obtained by the preparation, stirring at 1000 rotation speed for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the high-molecular deodorant.
Example 6
As in example 1, 100 parts by weight of the aqueous polyurethane a2 was replaced with 100 parts by weight of the aqueous polyurethane A3.
In a container of a stirring device, 100 parts by weight of waterborne polyurethane A3, 15 parts by weight of nano zinc oxide and zirconia balls are added into the container, stirring is carried out at 3000 rotating speeds for 2 hours, then the zirconia balls are filtered and removed, 0.12 part by weight of hydrogen peroxide is added, and stirring is carried out at 1000 rotating speeds for 2 hours; adding 6 parts by weight of the modified nano tantalum oxide obtained by the preparation, stirring at 1000 rotation speed for 1 hour, adding 3 parts by weight of polyacrylamide, and uniformly stirring to obtain the high-molecular deodorant.
The evaluation method comprises the following steps:
the experimental method comprises the following steps: a whole plywood is purchased on the market, the whole plywood is divided into a plurality of small pieces with the size of 30mm multiplied by 30mm, 5 small pieces of the plywood are used as peculiar smell release sources, all the surfaces of the small pieces of the plywood are sprayed with the polymer deodorant in the embodiment and the comparative example, the small pieces of the plywood are placed at the bottom of a small environment cabin after being naturally dried, then the small environment cabin is sealed, the temperature in the small environment cabin is 45 ℃, and the illumination is 200 lux. As a control test, a sample of a blank plywood (without any treatment) was prepared and placed under the same conditions in a closed state. After 4 hours, the environmental chamber was opened, the odor smelled was judged by 6 participants based on the following criteria, and the average of 6 participants was taken as the evaluation of the odor, while the formaldehyde concentration (mg/m3) in the environmental chamber was measured by the phenol reagent method.
Evaluation criteria:
0 minute: the peculiar smell is difficult to smell
1 minute: smelling a faint odor
And 2, dividing: smelling faint peculiar smell
And 3, dividing: smelling a slightly strong odor
And 4, dividing: smelling strong peculiar smell
The experiments show that the high-molecular deodorant can efficiently degrade various peculiar smell organic matters. After the illumination intensity of the polymeric deodorant of example 1 in the environmental chamber was increased to 800lux, the odor was evaluated as 0.6 and the formaldehyde concentration was 0.23.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the disclosure of the present invention are covered by the scope of the claims of the present invention.
Claims (5)
1. The high-efficiency deodorant is characterized by being prepared from 100 parts by weight of waterborne polyurethane, 10-25 parts by weight of polyacrylamide, 15-80 parts by weight of nano zinc oxide, 0.03-0.3 part by weight of hydrogen peroxide and 3-10 parts by weight of modified nano tantalum oxide, wherein the solid content of the waterborne polyurethane is 5-15%,
the modified nanometer tantalum oxide is prepared by the following steps: dissolving 3-10 parts by weight of tantalum pentachloride in 100 parts by weight of absolute ethanol at room temperature to obtain an ethanol solution of tantalum pentachloride, and standing for 5-30 minutes;
adding 5-15 parts by weight of bismuth vanadate and 0.01-0.1 part by weight of blocked isocyanate into a tantalum pentachloride ethanol solution, and uniformly mixing to obtain a first mixed solution;
keeping stirring the first mixed solution, and dripping 100 parts by weight of ethanol aqueous solution into the first mixed solution at the speed of 3-10 mL/min; adding N, N-dimethylformamide, keeping stirring the first mixed solution for 30 minutes, and standing at room temperature to obtain a second mixed solution;
soaking the second mixed solution in water at 30-45 ℃ for 6-24 hours, heating to 40-45 ℃, drying for 12-48 hours, heating to the deblocking temperature of the blocked isocyanate, keeping for 3-10 hours, heating to 100-160 ℃, and drying to constant weight to obtain a dried product, wherein the deblocking temperature of the blocked isocyanate is higher than 50 ℃ and lower than 100 ℃; and calcining the dried substance in a muffle furnace at the temperature of 400-500 ℃ to obtain the nano modified tantalum oxide.
2. The efficient deodorant according to claim 1, wherein the efficient deodorant is prepared by the steps of: adding 100 parts by weight of waterborne polyurethane, 15-80 parts by weight of nano zinc oxide and zirconia balls into a container, stirring at 2000-5000 rpm for 1-3 hours, filtering to remove the zirconia balls, adding 0.03-0.3 part by weight of hydrogen peroxide, and stirring at 500-1200 rpm for 1-3 hours; adding 3-10 parts by weight of nano tantalum oxide, stirring at 500-1200 rpm for 1-3 hours, adding 10-25 parts by weight of polyacrylamide, and stirring uniformly to obtain the high-efficiency deodorant.
3. The odor-reducing agent as claimed in claim 1, wherein said nano zinc oxide has an average particle size of 5 to 500 nm.
4. The efficient deodorant according to claim 2, wherein the zirconia balls have a particle size of 400-800 μm.
5. The odor eliminator of claim 1, wherein said blocked isocyanate is sodium bisulfite blocked HDI.
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