CN114425236B - Aldehyde-removing product and its manufacturing process - Google Patents
Aldehyde-removing product and its manufacturing process Download PDFInfo
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- CN114425236B CN114425236B CN202210352878.6A CN202210352878A CN114425236B CN 114425236 B CN114425236 B CN 114425236B CN 202210352878 A CN202210352878 A CN 202210352878A CN 114425236 B CN114425236 B CN 114425236B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 239000003054 catalyst Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 229920000642 polymer Polymers 0.000 claims description 17
- 239000003963 antioxidant agent Substances 0.000 claims description 16
- 230000003078 antioxidant effect Effects 0.000 claims description 16
- MHQADYKQKNTDHA-UHFFFAOYSA-N [Si].[Ca].[Cu].[Mn] Chemical compound [Si].[Ca].[Cu].[Mn] MHQADYKQKNTDHA-UHFFFAOYSA-N 0.000 claims description 15
- 239000002270 dispersing agent Substances 0.000 claims description 15
- 239000012745 toughening agent Substances 0.000 claims description 15
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 15
- -1 pentaerythritol ester Chemical class 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000002861 polymer material Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 229920001169 thermoplastic Polymers 0.000 claims description 10
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical group OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 5
- FGHOOJSIEHYJFQ-UHFFFAOYSA-N (2,4-ditert-butylphenyl) dihydrogen phosphite Chemical compound CC(C)(C)C1=CC=C(OP(O)O)C(C(C)(C)C)=C1 FGHOOJSIEHYJFQ-UHFFFAOYSA-N 0.000 claims description 4
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical group [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 238000003490 calendering Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 45
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 abstract description 32
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001569 carbon dioxide Substances 0.000 abstract description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 230000004913 activation Effects 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 10
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910018594 Si-Cu Inorganic materials 0.000 description 1
- 229910008465 Si—Cu Inorganic materials 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—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
- 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
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Catalysts (AREA)
Abstract
The invention discloses an aldehyde removal product and a manufacturing process thereof, belonging to the technical field of aldehyde removal, wherein the aldehyde removal product comprises a metal cluster and a macromolecular carrier, wherein the metal cluster contains at least one element in VIIB of the periodic table of elements; the aldehyde-removing article is formed by a manufacturing process of supporting the metal cluster to the polymeric carrier. The aldehyde removing product disclosed by the invention utilizes the activation effect of metal atomic nucleus external electrons in a metal cluster on oxygen in the air to form singlet oxygen, and then utilizes the oxidability of the singlet oxygen to react with formaldehyde in the air to generate carbon dioxide and water so as to obtain the aldehyde removing effect.
Description
Technical Field
The invention relates to the technical field of aldehyde removal, in particular to an aldehyde removal product and a manufacturing process thereof.
Background
A large amount of formaldehyde can be generated to cause pollution in the processes of decoration in a closed space and anticorrosion treatment of parts. The formaldehyde is slowly emitted and has long service life, and the elimination of the harm of the formaldehyde to human bodies becomes the key point in the current environmental protection field. There are various types of aldehyde-removing products on the market, and they can be roughly classified into three types according to their aldehyde-removing principle: (1) adsorbing and removing aldehyde; as shown in a patent with publication number CN213577957U, entitled an efficient dynamic aldehyde and odor removing device for indoor use, aldehyde pollutants in a space are adsorbed by activated carbon fibers; the method for removing the aldehyde only has physical action, the formaldehyde cannot be removed essentially, and the problem of saturation exists in the process of removing the formaldehyde by utilizing the hole adsorption, and then an adsorbate becomes a new formaldehyde source. (2) Removing aldehyde by using a photocatalyst; as shown in the patent with publication number CN111393952B, which is named as an aldehyde removing agent for artificial boards and a preparation method thereof, photocatalyst is coated on the surface of a board to decompose aldehyde substances; the method for removing aldehyde only has a large bandwidth, can only react under the excitation of ultraviolet light, and obviously has no effect on removing aldehyde indoors by using the photocatalyst. (3) Removing aldehyde by using a strong oxidant; as shown in publication No. CN110624386A, entitled Process for removing indoor Formaldehyde, aldehydes are oxidized into acid or reduced into alcohol by strong oxidant; the method for removing the formaldehyde is not friendly to the environment, can greatly act on other oxidized products and parts while removing the formaldehyde, and has the service life ending with the consumption of oxides. (4) Removing aldehyde from green plants; plants can eliminate aldehydes by photosynthesis, but plants have limited respiratory capacity, usually on the microgram scale, and thus limited aldehyde removal capacity.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides an aldehyde-removing product and a manufacturing process thereof.
The technical scheme is as follows: in order to achieve the above object, the present invention provides an aldehyde-removing product, which comprises a metal cluster catalyst and a polymeric carrier, wherein the metal cluster catalyst is supported on the polymeric carrier; the metal cluster contains at least one element of VIIB of the periodic Table.
Further, the metal cluster catalyst contains four elements of manganese, calcium, silicon and copper.
A process for the manufacture of an aldehyde-scavenging article comprising the steps of:
(A1) preparing materials: the metal cluster catalyst comprises manganese-calcium-silicon-copper, a processing aid and a high polymer carrier, wherein the weight ratio of the manganese-calcium-silicon-copper to the high polymer carrier is 1: 98-1: 8; the processing aid contains an antioxidant, a toughening agent, an ultraviolet absorber and a dispersant, wherein the antioxidant accounts for 0.3-1% of the weight of the macromolecular carrier, the toughening agent accounts for 1-5% of the weight of the macromolecular carrier, the ultraviolet absorber accounts for 0.3-1% of the weight of the macromolecular carrier, and the dispersant accounts for 0.5-3% of the weight of the macromolecular carrier; the polymer carrier is one of PE, PP, ABS, ASA, PMMA, PA or PVC;
(A2) stirring and mixing: putting the ingredients obtained in the step (A1) into a mixer, and uniformly stirring;
(A3) and (3) granulation: introducing the stirred and mixed material obtained in the step (A2) into an extruder, and granulating at 100-280 ℃ to form a thermoplastic polymer material;
(A4) molding: and (A3) preparing the thermoplastic polymer material obtained in the step (A) into an aldehyde-removing product through a forming process, wherein the forming process is any one of spinning, calendaring, injection molding or extrusion.
Preferably, the antioxidant comprises pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] and tris [2, 4-di-tert-butylphenyl ] phosphite.
Preferably, the antioxidant comprises pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] and tris [2, 4-di-tert-butylphenyl ] phosphite in a ratio of 1: 2.
Preferably, the toughening agent is one of acrylate, butadiene-styrene high-rubber powder or maleic anhydride grafted POE.
Preferably, the ultraviolet light absorber is 2-hydroxy-4-octoxybenzophenone.
Preferably, the dispersant is polyethylene wax.
A process for making an aldehyde-scavenging article comprising the steps of:
(B1) spraying a polyvinyl alcohol aqueous solution with the concentration of 0.1-20% onto the surface of the polymer carrier;
(B2) spraying a metal cluster catalyst manganese-calcium-silicon-copper onto the surface of a polymer carrier by using an electric powder dispersing machine, wherein the spraying amount is 1-500 g/m3；
(B3) And (D) drying the product obtained in the step (B2) at the temperature of 60-100 ℃, and removing the redundant unbonded catalyst after the water is completely evaporated to obtain the aldehyde-removing product.
Further, the polymer carrier is one of the following: PP nonwovens, films or fabrics; PE nonwoven, film or fabric; VC nonwoven fabrics or wovens; PA nonwoven, film or fabric; PBT non-woven or woven fabric; an ABS film; ASA film; PET nonwoven or fabric; a PMMA film; PVC film.
The aldehyde-removing product and the manufacturing process thereof have the following beneficial effects: (1) the metal cluster catalyst is an atom aggregate formed by arranging metal atoms according to a specific sequence, the size of the atom aggregate is several angstroms to several nanometers, the manganese atom is connected with the calcium atom and connected with the silicon atom and connected with the copper atom, the active points are manganese and copper, the calcium and the silicon are extra-nuclear electrons for strengthening the manganese and the copper, the influence of the extra-nuclear electrons on the environment is amplified, oxygen in the air can be activated into singlet oxygen, the singlet oxygen is active oxygen, the oxidation of the singlet oxygen is utilized to react with formaldehyde in the air to generate carbon dioxide and water, and the non-energy-consumption permanent aldehyde removal can be realized. (2) The metal cluster catalyst manganese-calcium-silicon-copper is used as a catalyst in the aldehyde removal process, and is not lost. (3) The aldehyde-removing product can be made into a porous network shape so as to filter air; or making into film to be applied to the surface of furniture and wall to make air inlet and outlet parts, floor film, etc.; effectively intercepting before the formaldehyde overflows to the space, and avoiding the formaldehyde pollution.
Detailed Description
It will be apparent that those skilled in the art can make many modifications and variations based on the spirit of the present invention.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art.
The following examples are further illustrative in order to facilitate the understanding of the embodiments, and the present invention is not limited to the examples.
Example 1
A process for the manufacture of an aldehyde-scavenging article comprising the steps of:
(A1) preparing materials: the metal cluster catalyst comprises manganese-calcium-silicon-copper, a processing aid and a high polymer carrier, wherein the weight ratio of the manganese-calcium-silicon-copper to the high polymer carrier is 1: 98, respectively; the processing aid contains an antioxidant, a toughening agent, an ultraviolet light absorber and a dispersing agent, wherein the antioxidant accounts for 1% of the weight of the macromolecular carrier, the toughening agent accounts for 5% of the weight of the macromolecular carrier, the ultraviolet light absorber accounts for 1% of the weight of the macromolecular carrier, and the dispersing agent accounts for 3% of the weight of the macromolecular carrier; the high molecular carrier is PE resin; wherein the antioxidant comprises tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tri [2, 4-di-tert-butylphenyl ] phosphite in a mass ratio of 1: 2; the toughening agent is maleic anhydride grafted POE; the ultraviolet light absorber is 2-hydroxy-4-octoxy benzophenone; the dispersing agent is polyethylene wax.
(A2) Stirring and mixing: and (C) putting the ingredients obtained in the step (A1) into a mixer, and stirring at a constant speed of 100r/min for 30 min.
(A3) And (3) granulation: introducing the stirred and mixed material obtained in the step (A2) into a parallel twin-screw extruder, and granulating at 100-230 ℃ to form the thermoplastic polymer material.
(A4) Molding: and (A3) spinning the thermoplastic polymer material obtained in the step (A) to remove aldehyde.
Example 2
A process for the manufacture of an aldehyde-scavenging article comprising the steps of:
(A1) preparing materials: the metal cluster catalyst comprises manganese-calcium-silicon-copper, a processing aid and a high polymer carrier, wherein the weight ratio of the manganese-calcium-silicon-copper to the high polymer carrier is 3: 44; the processing aid contains an antioxidant, a toughening agent, an ultraviolet absorber and a dispersant, wherein the antioxidant accounts for 0.6 percent of the weight of the macromolecular carrier, the toughening agent accounts for 3 percent of the weight of the macromolecular carrier, the ultraviolet absorber accounts for 0.6 percent of the weight of the macromolecular carrier, and the dispersant accounts for 1.5 percent of the weight of the macromolecular carrier; the macromolecular carrier is PE resin; wherein the antioxidant comprises tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tri [2, 4-di-tert-butylphenyl ] phosphite in a mass ratio of 1: 2; the toughening agent is maleic anhydride grafted POE; the ultraviolet light absorber is 2-hydroxy-4-octoxy benzophenone; the dispersing agent is polyethylene wax.
(A2) Stirring and mixing: and (C) putting the ingredients obtained in the step (A1) into a mixer, and stirring at a constant speed of 100r/min for 30 min.
(A3) And (3) granulation: and (C) introducing the stirred and mixed material obtained in the step (A2) into a parallel double-screw extruder, and granulating at 100-230 ℃ to form the thermoplastic high polymer material.
(A4) Molding: and (A3) spinning the thermoplastic polymer material obtained in the step (A) to remove aldehyde.
Example 3
A process for the manufacture of an aldehyde-scavenging article comprising the steps of:
(A1) preparing materials: the metal cluster catalyst comprises manganese-calcium-silicon-copper, a processing aid and a high polymer carrier, wherein the weight ratio of the manganese-calcium-silicon-copper to the high polymer carrier is 1: 8; the processing aid contains an antioxidant, a toughening agent, an ultraviolet absorber and a dispersant, wherein the antioxidant accounts for 0.3 percent of the weight of the macromolecular carrier, the toughening agent accounts for 1 percent of the weight of the macromolecular carrier, the ultraviolet absorber accounts for 0.3 percent of the weight of the macromolecular carrier, and the dispersant accounts for 0.5 percent of the weight of the macromolecular carrier; the high molecular carrier is PE resin; wherein the antioxidant comprises tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tri [2, 4-di-tert-butylphenyl ] phosphite in a mass ratio of 1: 2; the toughening agent is maleic anhydride grafted POE; the ultraviolet light absorber is 2-hydroxy-4-octoxy benzophenone; the dispersing agent is polyethylene wax.
(A2) Stirring and mixing: and (C) putting the ingredients obtained in the step (A1) into a mixer, and stirring at a constant speed of 100r/min for 30 min.
(A3) And (3) granulation: and (C) introducing the stirred and mixed material obtained in the step (A2) into a parallel double-screw extruder, and granulating at 100-230 ℃ to form the thermoplastic high polymer material.
(A4) Molding: and (A3) spinning the thermoplastic polymer material obtained in the step (A) to remove aldehyde.
Example 4
A process for the manufacture of a formaldehyde-scavenging article, comprising the steps of:
(B1) spraying a polyvinyl alcohol aqueous solution with the concentration of 0.1% to the surface of the PP non-woven fabric;
(B2) metal agglomerate using electric powder disperserThe cluster catalyst manganese-calcium-silicon-copper is sprayed on the surface of the macromolecular carrier, and the spraying amount is 1g/m3；
(B3) And (D) drying the product obtained in the step (B2) at 60 ℃, and removing the redundant unbonded catalyst after the water is completely evaporated to obtain the aldehyde-removed product.
Example 5
(B1) Spraying a polyvinyl alcohol aqueous solution with the concentration of 10% onto the surface of the PP non-woven fabric;
(B2) spraying the metal cluster catalyst Mn-Ca-Si-Cu onto the surface of the polymer carrier with an electric powder disperser at a spray rate of 250g/m3；
(B3) And (D) drying the product obtained in the step (B2) at 60 ℃, and removing the redundant unbonded catalyst after the water is completely evaporated to obtain the aldehyde-removing product.
Example 6
(B1) Spraying a polyvinyl alcohol aqueous solution with the concentration of 20% onto the surface of the PP non-woven fabric;
(B2) spraying the metal cluster catalyst manganese-calcium-silicon-copper to the surface of the polymer carrier by using an electric powder dispersion machine, wherein the spraying amount is 500g/m3；
(B3) And (D) drying the product obtained in the step (B2) at 60 ℃, and removing the redundant unbonded catalyst after the water is completely evaporated to obtain the aldehyde-removing product.
In order to verify the aldehyde removal effect of the aldehyde removal products obtained in examples 1 to 6, tests were performed under two working conditions. The working condition I is as follows: a closed space; controlling the air flow rate in the closed space to be 0.5m/s and the ventilation volume to be 60m3H; the aldehyde removal time is 60 min; initial concentration of formaldehyde 3.5mg/m3(ii) a The surface area of the aldehyde-removing article was 200mm by 100 mm. Working conditions are as follows: the air flow rate in the closed space is controlled to be 0.2m/s, and the ventilation volume is controlled to be 30m3H; the aldehyde removal time is 60 min; initial concentration of formaldehyde 3.5mg/m3(ii) a The surface area of the aldehyde-removing article was 200mm 100mm and the test results are shown in table 1.
TABLE 1 aldehyde removal Effect of aldehyde removal products obtained in examples 1 to 6 under two conditions
As can be seen from the above table, the aldehyde concentration of the aldehyde-removing products obtained in examples 1 to 6 was reduced to 99% or more, and the aldehyde-removing effect was gradually enhanced as the metal cluster catalyst concentration was increased. Meanwhile, the concentration of the carbon dioxide before and after the formaldehyde is removed under the working condition II is monitored, and the carbon dioxide concentration is found to be increased, so that the formaldehyde is oxidized into the carbon dioxide and the water.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (1)
1. The manufacturing process of the aldehyde-removing product is characterized by comprising the following steps:
(A1) preparing materials: preparing a metal cluster catalyst manganese-calcium-silicon-copper, wherein the metal cluster catalyst is an atomic aggregate formed by arranging metal atoms according to a specific sequence, and the specific arrangement sequence is that manganese atoms are connected with calcium atoms and silicon atoms are connected with copper atoms; the metal cluster catalyst comprises manganese-calcium-silicon-copper, a processing aid and a high polymer carrier, wherein the weight ratio of the manganese-calcium-silicon-copper to the high polymer carrier is 1: 98-1: 8; the processing aid contains an antioxidant, a toughening agent, an ultraviolet light absorber and a dispersant, wherein the antioxidant accounts for 0.3-1% of the weight of the polymeric carrier, the toughening agent accounts for 1-5% of the weight of the polymeric carrier, the ultraviolet light absorber accounts for 0.3-1% of the weight of the polymeric carrier, and the dispersant accounts for 0.5-3% of the weight of the polymeric carrier; the polymer carrier is one of PE, PP, ABS, ASA, PMMA, PA or PVC;
(A2) stirring and mixing: putting the ingredients obtained in the step (A1) into a mixer, and uniformly stirring;
(A3) and (3) granulation: introducing the stirred and mixed material obtained in the step (A2) into an extruder, and granulating at 100-280 ℃ to form a thermoplastic polymer material;
(A4) molding: preparing the thermoplastic polymer material obtained in the step (A3) into an aldehyde-removing product through a forming process, wherein the forming process is any one of spinning, calendaring, injection molding or extrusion;
the antioxidant comprises tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tri [2, 4-di-tert-butylphenyl ] phosphite in a weight ratio of 1: 2;
the toughening agent is one of acrylate, butadiene-styrene high-adhesive powder or maleic anhydride grafted POE;
the ultraviolet light absorber is 2-hydroxy-4-octoxy benzophenone;
the dispersing agent is polyethylene wax.
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