CN108951174B - Preparation method of composite wallpaper for purifying indoor air - Google Patents
Preparation method of composite wallpaper for purifying indoor air Download PDFInfo
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- CN108951174B CN108951174B CN201810770082.6A CN201810770082A CN108951174B CN 108951174 B CN108951174 B CN 108951174B CN 201810770082 A CN201810770082 A CN 201810770082A CN 108951174 B CN108951174 B CN 108951174B
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- wallpaper
- indoor air
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- 239000002131 composite material Substances 0.000 title claims abstract description 117
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000012629 purifying agent Substances 0.000 claims abstract description 64
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 51
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 32
- 238000005507 spraying Methods 0.000 claims abstract description 31
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims abstract description 25
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims abstract description 25
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 23
- 238000007731 hot pressing Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 238000010030 laminating Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 5
- 239000013067 intermediate product Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 229910021389 graphene Inorganic materials 0.000 claims description 25
- 238000005406 washing Methods 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 11
- 239000000047 product Substances 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000012298 atmosphere Substances 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 9
- 238000009210 therapy by ultrasound Methods 0.000 claims description 9
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 18
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- 230000005587 bubbling Effects 0.000 description 12
- 238000001179 sorption measurement Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 238000000746 purification Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000004408 titanium dioxide Substances 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 7
- LLDFSHBCVFHQIV-UHFFFAOYSA-M dimethyl-octadecyl-propylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCC LLDFSHBCVFHQIV-UHFFFAOYSA-M 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 229920002620 polyvinyl fluoride Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000013110 organic ligand Substances 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009881 electrostatic interaction Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000003905 indoor air pollution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N thiocyanic acid Chemical compound SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 2
- QGFGLYOMJKJZIC-UHFFFAOYSA-N 2-dodecyl-1h-benzimidazole Chemical compound C1=CC=C2NC(CCCCCCCCCCCC)=NC2=C1 QGFGLYOMJKJZIC-UHFFFAOYSA-N 0.000 description 1
- 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
- 239000005711 Benzoic acid Substances 0.000 description 1
- CXRFDZFCGOPDTD-UHFFFAOYSA-M Cetrimide Chemical compound [Br-].CCCCCCCCCCCCCC[N+](C)(C)C CXRFDZFCGOPDTD-UHFFFAOYSA-M 0.000 description 1
- GSNUFIFRDBKVIE-UHFFFAOYSA-N DMF Natural products CC1=CC=C(C)O1 GSNUFIFRDBKVIE-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- -1 and specifically Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- PLMFYJJFUUUCRZ-UHFFFAOYSA-M decyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCC[N+](C)(C)C PLMFYJJFUUUCRZ-UHFFFAOYSA-M 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000012621 metal-organic framework Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000013384 organic framework Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/687—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing atoms other than phosphorus, silicon, sulfur, nitrogen, oxygen or carbon in the main chain
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M17/00—Producing multi-layer textile fabrics
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Catalysts (AREA)
Abstract
The invention belongs to the technical field of decorative wallpaper, and particularly relates to a preparation method of composite wallpaper for purifying indoor air, which comprises the following steps: (1) preparing a purifying agent; (2) adding 2-5 times of surfactant into the purifying agent obtained in the step (1), and then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is (0.2-0.5): 1; (3) spraying the composite slurry on one side of the SMS non-woven fabric, then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper; according to the invention, the IRMOFs material, the tetraisopropyl titanate and the tin tetrachloride are mixed to prepare the purifying material, and the purifying material is used in the composite wallpaper, so that the obtained composite wallpaper can efficiently adsorb pollutants in indoor air, and further, the pollutants are catalytically degraded through a plurality of active reaction sites in the purifying agent, thereby achieving the purpose of purifying the indoor air.
Description
Technical Field
The invention belongs to the technical field of decorative wallpaper, and particularly relates to a preparation method of composite wallpaper for purifying indoor air.
Background
With the continuous improvement of living standard, people have higher and higher requirements on improving living environment and improving air quality. People need a fresh, tidy and sanitary living environment. Indoor air pollution is becoming a concern, and the pollutants existing in indoor air mainly include: formaldehyde, benzene, ammonia, radon, aromatic hydrocarbon, tetrachloroethylene and the like, and most of pollutants mainly from decoration materials have irritant peculiar smell, so that the mood of people is influenced, and the health of people is threatened.
At present, methods for treating indoor air pollution mainly comprise a filtering method, an ozone purification method, a low-temperature plasma purification method, an adsorption purification method and the like, and the adsorption purification method realized by adopting an adsorption purification material has the best adsorption purification prospect based on the complexity and the economical consideration of a purification process. Generally, the purification materials are classified into adsorption type purification materials, photocatalytic materials, and composite type purification materials according to their characteristics. Most purifying materials have the defects of low adsorption rate, high saturation speed, high material cost, complex use and operation process and the like, and the application of the adsorption purifying materials in indoor air purification is restricted to a certain extent, so that the research and development of the purifying materials which are efficient, low in cost and convenient to use are urgent.
The wallpaper is also called as wallpaper, is an interior decoration material for pasting wall surfaces, is widely applied to interior decoration of houses, offices, hotels, and the like, and is not limited to paper and also comprises other materials. The wallpaper can adsorb and purify indoor air by endowing the wallpaper with the capacity of purifying indoor air, so that the requirement of purifying pollutants in the indoor air conveniently at high efficiency can be met.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a preparation method of composite wallpaper for purifying indoor air, and the composite wallpaper is endowed with high-efficiency indoor air purifying capacity.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of composite wallpaper for purifying indoor air comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate and stannic chloride in absolute ethyl alcohol, adding IRMOFs materials, performing ultrasonic dispersion, adjusting the pH value of a mixed system to be 5.0-5.5, performing sealed reaction on the mixed system at 110-150 ℃ for 2-3 h, and centrifuging and washing a product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 1-3 h, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 3-5 hours at 400-500 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 2-5 times of surfactant into the purifying agent obtained in the step (1), and then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is (0.2-0.5): 1;
(3) and spraying the composite slurry on one side of the SMS non-woven fabric, then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper.
According to the invention, the IRMOFs material is added into a mixture of tetraisopropyl titanate and stannic chloride, under the action of ultrasound, the tetraisopropyl titanate and the stannic chloride invade into pores of the IRMOFs material, and in the process of thermal reaction, tin-doped titanium dioxide is generated in situ in the pores of the IRMOFs material; furthermore, the surface of the intermediate product A is grafted and modified by polyepichlorohydrin-dimethylamine, and then the intermediate product A is combined with active functional groups on the surface of the redox graphene through electrostatic interaction, so that the intermediate product A is coated by the redox graphene, and the intermediate product A coated by the redox graphene not only improves the binding force of tin-doped titanium dioxide and IRMOFs materials, thereby prolonging the service life of the purifying agent, but also improving the adsorption and catalytic degradation performance of the purifying agent.
The purifying agent and paper pulp are mixed and then sprayed on SMS non-woven fabric, then a layer of SMS non-woven fabric is compounded, the compound slurry is soaked in the SMS non-woven fabric, and further the SMS non-woven fabric is subjected to hot pressing and laminating through a roller press to form compound wallpaper with an integral structure, and the compound wallpaper can efficiently adsorb pollutants in indoor air, perform catalytic degradation on the pollutants, and achieve the purpose of purifying the indoor air.
Through the technical scheme, the invention has the following technical effects:
1. according to the invention, IRMOFs material, tetraisopropyl titanate and stannic chloride are mixed to prepare the purifying material, and the purifying material is used in the composite wallpaper, so that the obtained composite wallpaper can efficiently adsorb pollutants in indoor air, and further, the pollutants are catalytically degraded through a plurality of active reaction sites in the purifying agent, thereby achieving the purpose of purifying the indoor air;
2. according to the invention, the indoor wallpaper is reformed, and the purifying agent with the indoor air purifying capacity is added into the prepared composite wallpaper, so that the high-efficiency, low-cost, convenient and practical purifying material is obtained;
3. the preparation method of the composite wallpaper for purifying indoor air, provided by the invention, is simple and convenient, is easy to operate, and is convenient for realizing industrial production.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified with the specific embodiments.
The invention provides a preparation method of composite wallpaper for purifying indoor air, which comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate and stannic chloride in absolute ethyl alcohol, adding IRMOFs materials, performing ultrasonic dispersion, adjusting the pH value of a mixed system to be 5.0-5.5, performing sealed reaction on the mixed system at 110-150 ℃ for 2-3 h, and centrifuging and washing a product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 1-3 h, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 3-5 hours at 400-500 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 2-5 times of surfactant into the purifying agent obtained in the step (1), then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is (0.2-0.5): 1;
(3) and spraying the composite slurry on one side of the SMS non-woven fabric, then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper.
The IRMOFs material in the invention is also called as a reticular metal and organic framework material, is one of metal organic framework compounds, and is a crystalline porous material with a periodic network structure formed by connecting an inorganic metal center (metal ion or metal cluster) and a bridged organic ligand through self-assembly.
The preparation method of the IRMOFs material comprises the steps of dissolving soluble metal salt and an organic ligand in a solvent, stirring and reacting for 10-15 hours at the temperature of 40-50 ℃, washing, centrifuging and drying a reaction mixture to obtain the IRMOFs material. Wherein the soluble metal salt is selected from at least one of soluble zinc salt, soluble iron salt, soluble cobalt salt, soluble nickel salt and soluble magnesium salt.
The organic ligand is at least one of pyridine, imidazole, trimesic acid, terephthalic acid, formic acid, benzoic acid, acetic acid and propionic acid;
the solvent is at least one of methanol, DMF, toluene, dichloromethane, tetrahydrofuran, ethyl acetate, acetone, N-dimethylformamide, N-methylpyrrolidone, N-dimethylacetamide, N-diethylformamide and petroleum ether.
The IRMOFs material has a special pore structure, and tin-doped titanium dioxide is generated in situ in the pore structure of the IRMOFs material in the thermal reaction process by introducing a mixture of tetraisopropyl titanate and tin tetrachloride into the pore structure of the IRMOFs material; the tin-doped titanium dioxide has excellent stability and catalytic activity, and shows excellent photocatalytic capability in photocatalysis. Furthermore, the surface of the intermediate product A is grafted and modified by polyepichlorohydrin-dimethylamine, and then the intermediate product A is combined with active functional groups on the surface of the redox graphene through electrostatic interaction, so that the intermediate product A is coated by the redox graphene, and the intermediate product A coated by the redox graphene not only improves the binding force of tin-doped titanium dioxide and IRMOFs materials, thereby prolonging the service life of the purifying agent, but also improving the adsorption and catalytic degradation performance of the purifying agent.
The purifying agent and paper pulp are mixed and then sprayed on the SMS non-woven fabric, and then a layer of SMS non-woven fabric is compounded to obtain the composite wallpaper, the composite wallpaper is formed by soaking composite slurry in the SMS non-woven fabric, the composite slurry and the SMS non-woven fabric on two sides are tightly combined to form an integral structure, compared with the existing composite wallpaper, the composite wallpaper is not easy to delaminate after being curled in the storage process, and meanwhile, the composite wallpaper is low in warpage rate after being unfolded again, and is convenient to pave on a wall body.
In the invention, the metal is doped with titanium dioxide to improve the stability and catalytic activity of the titanium dioxide, and specifically, metal tin is doped with the titanium dioxide to improve the stability and catalytic activity of the titanium dioxide; the mass ratio of the tetraisopropyl titanate to the stannic chloride is 1: (0.1-0.25).
In the invention, the content of the raw materials for preparing the purifying agent can be selected in a wide range, and in order to ensure that the prepared purifying agent has better adsorption capacity, in the step (1), the purifying agent is prepared from the following raw materials in parts by weight: 10-20 parts of tetraisopropyl titanate, 1-5 parts of stannic chloride, 38-55 parts of IRMOFs material, 10-18 parts of polyepichlorohydrin-dimethylamine and 3-8 parts of redox graphene.
Further preferably, the purifying agent is prepared from the following raw materials in parts by weight: 12-17 parts of tetraisopropyl titanate, 1.2-4.25 parts of stannic chloride, 42-50 parts of IRMOFs material, 13-15 parts of polyepichlorohydrin-dimethylamine and 4-7 parts of redox graphene.
In the invention, the spraying amount of the composite slurry has great influence on the adsorption capacity of the prepared composite wallpaper, but is limited to the air contact area of the composite wallpaper, and the spraying amount of the composite slurry is not too large so as to avoid waste of the composite slurry; and if the spraying amount is too small, the air purification capability of the composite wallpaper is seriously influenced. Preferably, the spraying amount of the composite slurry in the invention is
200～400g/cm2。
In the invention, the surfactant is used for reducing the surface free energy of the purifying agent and improving the dispersibility of the purifying agent in paper pulp, and can be one selected from dimethyl octadecyl propyl ammonium chloride, decyl trimethyl ammonium bromide, trimethyl n-tetradecyl ammonium bromide and dodecyl benzimidazole.
According to the present invention, in the step (1.1), a method of adjusting the mixed system may be a method of dropping an acidic solution into the mixed system, and the present invention does not require any particular kind of the acidic solution, and may be a method commonly known to those skilled in the art, and specifically, at least one of hydrochloric acid, nitric acid, sulfuric acid, boric acid, perchloric acid, thiocyanic acid, sulfurous acid, phosphoric acid, phosphorous acid, hypochlorous acid, and the like may be mentioned.
The SMS non-woven fabric is a composite non-woven fabric, is a spun-bonded melt-blown composite product, and has the advantages of high strength, no adhesive and no toxicity; specifically, the SMS nonwoven fabric described in the present invention is available from SMS nonwoven fabric produced by new materials ltd, star, Shandong.
The preparation method of the composite wallpaper for purifying indoor air provided by the invention is further described by the following specific examples.
Example 1
A preparation method of composite wallpaper for purifying indoor air comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate and stannic chloride in 2 times of absolute ethyl alcohol, adding IRMOFs material, performing ultrasonic dispersion, adjusting the pH value of the mixed system to 5.0, sealing the mixed system at 120 ℃ for reaction for 2h, and centrifuging and washing the product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 2 hours, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 4 hours at 450 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 3 times of dimethyl octadecyl propyl ammonium chloride into the purifying agent obtained in the step (1), then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is 0.4: 1;
(3) spraying the composite slurry to one side of the SMS non-woven fabric by using a full-automatic spraying machine, wherein the spraying amount of the composite slurry is 300g/cm2Then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper;
the purifying agent is prepared from the following raw materials in parts by weight: 15 parts of tetraisopropyl titanate, 3 parts of stannic chloride, 45 parts of IRMOFs material, 14 parts of polyepichlorohydrin-dimethylamine and 5 parts of redox graphene;
the press roll load of the roll squeezer is 15N, the pressure between discs is 60N, the rolling times are 6 times, and the hot pressing temperature is 70 ℃.
Example 2
A preparation method of composite wallpaper for purifying indoor air comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate and stannic chloride in 2 times of absolute ethyl alcohol, adding IRMOFs material, performing ultrasonic dispersion, adjusting the pH value of the mixed system to 5.0, sealing the mixed system at 120 ℃ for reaction for 2h, and centrifuging and washing the product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 2 hours, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 4 hours at 450 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 4 times of dimethyl octadecyl propyl ammonium chloride into the purifying agent obtained in the step (1), then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is 0.3: 1;
(3) spraying the composite slurry to one side of the SMS non-woven fabric by using a full-automatic spraying machine, wherein the spraying amount of the composite slurry is 300g/cm2Then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper;
the purifying agent is prepared from the following raw materials in parts by weight: 12 parts of tetraisopropyl titanate, 1.2 parts of stannic chloride, 42 parts of IRMOFs material, 13 parts of polyepichlorohydrin-dimethylamine and 4 parts of redox graphene;
the press roll load of the roll squeezer is 12N, the pressure between discs is 60N, the rolling times are 6 times, and the hot pressing temperature is 60 ℃.
Example 3
A preparation method of composite wallpaper for purifying indoor air comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate and stannic chloride in 2 times of absolute ethyl alcohol, adding IRMOFs material, performing ultrasonic dispersion, adjusting the pH value of the mixed system to 5.4, sealing the mixed system at 130 ℃ for reaction for 3h, and centrifuging and washing the product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 2 hours, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 4 hours at 480 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 4 times of dimethyl octadecyl propyl ammonium chloride into the purifying agent obtained in the step (1), then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is 0.4: 1;
(3) spraying the composite slurry to one side of the SMS non-woven fabric by using a full-automatic spraying machine, wherein the spraying amount of the composite slurry is 300g/cm2Then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper;
the purifying agent is prepared from the following raw materials in parts by weight: 17 parts of tetraisopropyl titanate, 4.25 parts of stannic chloride, 50 parts of IRMOFs material, 15 parts of polyepichlorohydrin-dimethylamine and 7 parts of redox graphene;
the press roll load of the roll squeezer is 12N, the pressure between discs is 60N, the rolling times are 6 times, and the hot pressing temperature is 60 ℃.
Example 4
A preparation method of composite wallpaper for purifying indoor air comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate and stannic chloride in 2 times of absolute ethyl alcohol, adding IRMOFs material, performing ultrasonic dispersion, adjusting the pH value of the mixed system to 5.0, sealing the mixed system at 110 ℃ for reaction for 3h, and centrifuging and washing the product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 3h, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 5 hours at 400 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 2 times of dimethyl octadecyl propyl ammonium chloride into the purifying agent obtained in the step (1), then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is 0.2: 1;
(3) spraying the composite slurry to one side of the SMS non-woven fabric by using a full-automatic spraying machine, wherein the spraying amount of the composite slurry is 300g/cm2Then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper;
the purifying agent is prepared from the following raw materials in parts by weight: 10 parts of tetraisopropyl titanate, 1 part of stannic chloride, 38 parts of IRMOFs material, 10 parts of polyepichlorohydrin-dimethylamine and 3 parts of redox graphene;
the press roll load of the roll squeezer is 10N, the pressure between discs is 50N, the rolling times are 5 times, and the hot pressing temperature is 80 ℃.
Example 5
A preparation method of composite wallpaper for purifying indoor air comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate and stannic chloride in 2 times of absolute ethyl alcohol, adding IRMOFs material, performing ultrasonic dispersion, adjusting the pH value of the mixed system to 5.5, sealing the mixed system at 150 ℃ for reaction for 2h, and centrifuging and washing the product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 3h, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 3 hours at 500 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 5 times of dimethyl octadecyl propyl ammonium chloride into the purifying agent obtained in the step (1), then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is 0.3: 1;
(3) spraying the composite slurry to one side of the SMS non-woven fabric by using a full-automatic spraying machine, wherein the spraying amount of the composite slurry is 300g/cm2Then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper;
the purifying agent is prepared from the following raw materials in parts by weight: 20 parts of tetraisopropyl titanate, 5 parts of stannic chloride, 55 parts of IRMOFs material, 18 parts of polyepichlorohydrin-dimethylamine and 8 parts of redox graphene;
the press roll load of the roll press is 20N, the pressure between discs is 100N, the rolling times are 8 times, and the hot pressing temperature is 60 ℃.
Example 6
This example is substantially the same as the method for preparing the composite wallpaper for purifying indoor air described in example 1, except that, in the step (3), the spraying amount of the composite paste is 200g/cm2。
Example 7
This example is substantially the same as the method for preparing the composite wallpaper for purifying indoor air described in example 1, except that, in the step (3), the spraying amount of the composite paste is 400g/cm2。
Comparative example 1
This example is substantially the same as the method for preparing the composite wallpaper for purifying indoor air described in example 1, except that, in the step (3), the spraying amount of the composite paste is 100g/cm2。
Comparative example 2
This example is substantially the same as the method for preparing the composite wallpaper for purifying indoor air described in example 1, except that, in the step (3), the spraying amount of the composite paste is 500g/cm2。
Comparative example 3
The present example is substantially the same as the preparation method of the composite wallpaper for purifying indoor air described in example 1, except that in step (1.1), the composite wallpaper is prepared without adding tin tetrachloride and without changing the rest; specifically, the method comprises the following steps:
a preparation method of composite wallpaper for purifying indoor air comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate in 2 times of absolute ethyl alcohol, adding IRMOFs material, performing ultrasonic dispersion, adjusting the pH value of the mixed system to 5.0, performing sealed reaction on the mixed system at 120 ℃ for 2 hours, and performing centrifugal washing on the product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 2 hours, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 4 hours at 450 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 3 times of dimethyl octadecyl propyl ammonium chloride into the purifying agent obtained in the step (1), then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is 0.4: 1;
(3) spraying the composite slurry to one side of the SMS non-woven fabric by using a full-automatic spraying machine, wherein the spraying amount of the composite slurry is 300g/cm2Then covering a layer of SMS non-woven fabric, and entering a roller press for hot pressingMixing to obtain the composite wallpaper;
the purifying agent is prepared from the following raw materials in parts by weight: 15 parts of tetraisopropyl titanate, 45 parts of IRMOFs material, 14 parts of polyepichlorohydrin-dimethylamine and 5 parts of redox graphene;
the press roll load of the roll squeezer is 15N, the pressure between discs is 60N, the rolling times are 6 times, and the hot pressing temperature is 70 ℃.
Comparative example 4
This example is substantially the same as the method for manufacturing a composite wallpaper for purifying indoor air described in example 1, except that, in the step (2), the purifying agent is mixed with the pulp in a ratio of 0.1: 1, in a mass ratio of 1.
Comparative example 5
This example is substantially the same as the method for manufacturing a composite wallpaper for purifying indoor air described in example 1, except that, in the step (2), the purifying agent is mixed with the pulp in a ratio of 0.6: 1, in a mass ratio of 1.
The performance of the composite wallpaper prepared in the example provided by the invention was evaluated by the following method:
1. placing the composite wallpaper prepared in the embodiment into a Tedlar (Tedlar) bag, introducing 100ppm of formaldehyde into the Tedlar bag, sealing, measuring the formaldehyde amount in the Tedlar bag every 60min under a daylight lamp, recording the residual formaldehyde amount after 120min, calculating to obtain the absorption rate of the formaldehyde after 120min, and recording the test result into table 1;
2. the composite wallpaper prepared by the method is curled, the inner diameter after curling is 5cm, then the composite wallpaper is placed in a high-low temperature alternating humidity-heat test box (Nanjing Tester HS-100), the test conditions are controlled to be 85 ℃, 85% RH and the test time is 480h, then the curled wallpaper is unfolded, the appearance condition of the wallpaper is observed, the warping degree of the composite wallpaper is tested, and the result is recorded in a table 2.
The testing method of the warping degree comprises the steps of cutting the composite wallpaper with the size of 10cm x 10cm, placing the composite wallpaper on a marble table, testing the warping heights of four corners, calculating an arithmetic average value, and taking the arithmetic average value as the warping degree of the composite wallpaper.
Table 1: properties of composite wallpaper in examples
Table 2 composite wallpaper was subjected to weathering test
| Appearance after the resistance test | Warping degree (mm) | |
| Example 1 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Example 2 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Example 3 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Example 4 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Example 5 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Example 6 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Example 7 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Comparative example 1 | The composite wallpaper is spread smoothly without layering and bubbling | 0.1mm |
| Comparative example 2 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Comparative example 3 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Comparative example 4 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
| Comparative example 5 | The composite wallpaper is spread smoothly without layering and bubbling | 0.2mm |
The test data in table 1 show that the composite wallpaper provided by the invention has excellent adsorption and catalytic degradation capabilities. The formaldehyde absorption of comparative examples 2 and 5 is not improved much compared with that of example 1, so that the cost performance is low.
The data in table 2 show that the composite wallpaper provided by the invention can still keep a good appearance after undergoing a weather resistance test, has low warping degree, is easy to spread after being curled, and is convenient to spread on a wall body.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A preparation method of composite wallpaper for purifying indoor air is characterized by comprising the following steps: the method comprises the following steps:
(1) preparation of a purifying agent
(1.1) dissolving tetraisopropyl titanate and stannic chloride in absolute ethyl alcohol, adding IRMOFs materials, performing ultrasonic dispersion, adjusting the pH value of a mixed system to be 5.0-5.5, performing sealed reaction on the mixed system at 110-150 ℃ for 2-3 h, and centrifuging and washing a product to obtain an intermediate product A;
(1.2) uniformly dispersing polyepichlorohydrin-dimethylamine in water, adding an intermediate product A, adding redox graphene, carrying out ultrasonic treatment for 1-3 h, and then carrying out centrifugal washing and precipitation to obtain an intermediate product B;
(1.3) roasting the intermediate product B for 3-5 hours at 400-500 ℃ in an inert gas atmosphere to obtain the purifying agent;
(2) adding 2-5 times of surfactant into the purifying agent obtained in the step (1), and then adding paper pulp, mixing and stirring to obtain composite slurry; wherein the mass ratio of the purifying agent to the paper pulp is (0.2-0.5): 1;
(3) and spraying the composite slurry on one side of the SMS non-woven fabric, then covering a layer of SMS non-woven fabric, and entering a roller press for hot-pressing and laminating to obtain the composite wallpaper.
2. The method for preparing a composite wallpaper for purifying indoor air according to claim 1, wherein: the mass ratio of the tetraisopropyl titanate to the stannic chloride is 1: (0.1-0.25).
3. The method for preparing a composite wallpaper for purifying indoor air according to claim 1, wherein: the purifying agent is prepared from the following raw materials in parts by weight: 10-20 parts of tetraisopropyl titanate, 1-5 parts of stannic chloride, 38-55 parts of IRMOFs material, 10-18 parts of polyepichlorohydrin-dimethylamine and 3-8 parts of redox graphene.
4. The method for preparing a composite wallpaper for purifying indoor air according to claim 1, wherein: the purifying agent is prepared from the following raw materials in parts by weight: 12-17 parts of tetraisopropyl titanate, 1.2-4.25 parts of stannic chloride, 42-50 parts of IRMOFs material, 13-15 parts of polyepichlorohydrin-dimethylamine and 4-7 parts of redox graphene.
5. The method for preparing a composite wallpaper for purifying indoor air according to claim 1, wherein: the spraying amount of the composite slurry is 200-400 g/cm2。
6. The method for preparing a composite wallpaper for purifying indoor air according to claim 1, wherein: the press roll load of the roll squeezer is 10-20N, the pressure between the plates is 50-100N, the rolling times are 5-8, and the hot pressing temperature is 60-80 ℃.
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