CN116574419A - Infrared radiation coating based on copper slag powder, preparation method thereof and hierarchical pore infrared radiation coating - Google Patents
Infrared radiation coating based on copper slag powder, preparation method thereof and hierarchical pore infrared radiation coating Download PDFInfo
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- CN116574419A CN116574419A CN202310462977.4A CN202310462977A CN116574419A CN 116574419 A CN116574419 A CN 116574419A CN 202310462977 A CN202310462977 A CN 202310462977A CN 116574419 A CN116574419 A CN 116574419A
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- copper slag
- slag powder
- infrared radiation
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- 239000002893 slag Substances 0.000 title claims abstract description 98
- 239000011248 coating agent Substances 0.000 title claims abstract description 75
- 238000000576 coating method Methods 0.000 title claims abstract description 75
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 71
- 239000010949 copper Substances 0.000 title claims abstract description 71
- 239000000843 powder Substances 0.000 title claims abstract description 71
- 230000005855 radiation Effects 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000002149 hierarchical pore Substances 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 150000001879 copper Chemical class 0.000 claims abstract description 27
- 239000002270 dispersing agent Substances 0.000 claims abstract description 19
- 239000002562 thickening agent Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 13
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 13
- 239000000839 emulsion Substances 0.000 claims abstract description 13
- 239000013530 defoamer Substances 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 24
- 239000003607 modifier Substances 0.000 claims description 22
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims description 16
- 239000003973 paint Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 14
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- ARIWANIATODDMH-UHFFFAOYSA-N Lauric acid monoglyceride Natural products CCCCCCCCCCCC(=O)OCC(O)CO ARIWANIATODDMH-UHFFFAOYSA-N 0.000 claims description 10
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 8
- 239000002518 antifoaming agent Substances 0.000 claims description 8
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 8
- 239000001593 sorbitan monooleate Substances 0.000 claims description 8
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 8
- 229950004959 sorbitan oleate Drugs 0.000 claims description 8
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 7
- 239000001099 ammonium carbonate Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000004088 foaming agent Substances 0.000 claims description 6
- 235000011837 pasties Nutrition 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 4
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 4
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 4
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 4
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000191 radiation effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 239000011247 coating layer Substances 0.000 description 8
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 8
- 229920000053 polysorbate 80 Polymers 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 229910004283 SiO 4 Inorganic materials 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical group O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229940083037 simethicone Drugs 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000005639 Lauric acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052840 fayalite Inorganic materials 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-N methyl undecanoic acid Natural products CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 1
- 238000004476 mid-IR spectroscopy Methods 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NCAIGTHBQTXTLR-UHFFFAOYSA-N phentermine hydrochloride Chemical compound [Cl-].CC(C)([NH3+])CC1=CC=CC=C1 NCAIGTHBQTXTLR-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2268—Ferrous oxide (FeO)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an infrared radiation coating based on copper slag powder, a preparation method thereof and a hierarchical pore infrared radiation coating. The coating comprises the following raw materials in parts by weight: 40-60 parts of acrylic resin emulsion, 30-50 parts of modified copper slag powder, 2-4 parts of thickener, 0.3-0.7 part of dispersing agent, 0.1-0.3 part of defoamer, 1-3 parts of pore-forming agent and 0.5-2 parts of film forming auxiliary agent. The hierarchical pore infrared radiation coating is prepared by coating an infrared radiation coating based on copper slag powder on the surface of a substrate, drying for a period of time, heating to 700-1400 ℃, and preserving heat for a period of time. The coating has a hierarchical pore structure, has high infrared emissivity in the whole wave band of 0.75-25 mu m, has good heat radiation effect and high heat exchange efficiency, and is suitable for the energy-saving field of high-temperature kilns and boilers.
Description
Technical Field
The invention relates to the technical field of radiation paint, in particular to an infrared radiation paint based on copper slag powder, a preparation method thereof and a hierarchical pore infrared radiation coating.
Background
The infrared radiation coating increases heat exchange efficiency by absorbing and emitting infrared rays, is widely used for improving the heat efficiency of industrial boilers and kilns, reduces fuel consumption and loss, and achieves the purposes of energy conservation and emission reduction. The infrared radiation coating materials commonly used at present mainly comprise SiC, transition metal oxide, ferrite spinel and a compound thereof, and the raw material purity of the radiation component is high, so that the application cost is not matched with the economic benefit generated by energy conservation.
The copper slag is mainly solid waste generated in the matte smelting process and the copper matte converting process, and the main component is fayalite (2 FeO.SiO) 2 ) Magnetite (Fe) 3 O 4 ) And an amorphous glass body composed of gangue. In addition, a small amount of various valuable metals such as Si, al, ca and Zn, pb, co, ni are contained, and the recovery of valuable metals and noble metals can realize the resource utilization of copper slag, but there are problems such as secondary water pollution and high energy consumption. In the traditional field, the material is used as a preparation raw material of cement, concrete, glass, ceramic and the like, has low utilization rate, and is difficult to realize direct recycling.
Therefore, the preparation of the infrared radiation material by using the copper slag has important significance for realizing high-value and high-efficiency utilization of the copper slag. In the prior art, there have been methods for preparing infrared radiation materials using copper slag, such as: chinese patent CN 1038296A discloses a method for preparing far infrared radiation paint, which takes 20-70% of copper slag as raw material, and adds 30-70% of inorganic binder to prepare the far infrared radiation paint, wherein the far infrared emissivity of the coating of the embodiment is 0.90-0.92. In another example, chinese patent CN 115160836A discloses a copper smelting slag-based high-emissivity infrared radiation coating, a preparation method and a coating thereof, wherein the copper slag-based infrared radiation coating is prepared by adding modified iron scale powder into copper slag, and the average emissivity of a wave band of 0.75-2.5 mu m is 0.85-0.94. In a general sense, the mid-IR emissivity is mainly greater than 8 μm in the IR band, and in the above patents is only 0.75-2.5 μm and>the infrared emissivity of 8 mu m is technically adjusted, the emissivity of 2.5-8 mu m wave band is not technically optimized, but the infrared energy ratio of 2.5-8 mu m wave band is not ignored for industrial boilers and kilns, and the improvement of the infrared emissivity of the wave band is significant for improving the heat exchange efficiency of the industrial boilers and kilns. In addition, improving the coating composition can optimize the emissivity of the copper slag coating, but copperComponent Fe in slag coating 3 O 4 The coating is gradually oxidized in the high-temperature use process, so that the emissivity of the coating is attenuated, and the heat exchange efficiency of the boiler and the kiln is adversely affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an infrared radiation coating based on copper slag powder, a preparation method thereof and a multi-level hole infrared radiation coating, wherein the coating has a multi-level hole structure, has high infrared emissivity in the whole wave band of 0.75-25 mu m, has good heat radiation effect and high heat exchange efficiency, and is suitable for the energy-saving field of high-temperature kilns and boilers.
The invention discloses an infrared radiation coating based on copper slag powder, which comprises the following raw materials in parts by weight: 40-60 parts of acrylic resin emulsion, 30-50 parts of modified copper slag powder, 2-4 parts of thickener, 0.3-0.7 part of dispersing agent, 0.1-0.3 part of defoamer, 1-3 parts of pore-forming agent and 0.5-2 parts of film forming auxiliary agent.
Further, the modified copper slag powder is prepared by modifying copper slag through an oily modifier.
Further, the specific preparation process of the modified copper slag powder comprises the following steps: adding copper slag powder and an oily modifier in a certain mass ratio into an ethanol solution, heating in a water bath at 40-70 ℃, stirring for 30-60 min, and filtering to obtain modified copper slag powder.
Further, the oily modifier is a mixture of cyclohexane, sorbitan monooleate polyoxyethylene ether or fatty alcohol polyoxyethylene ether, sorbitan oleate or glycerol laurate, and the mass ratio of the cyclohexane, the sorbitan monooleate polyoxyethylene ether or fatty alcohol polyoxyethylene ether, the sorbitan oleate or the glycerol laurate is (45-60): (0.5-2): (0.3-1).
Further, the mass ratio of the copper slag powder to the oily modifier is 1: (0.2-0.4).
Further, the particle size of the copper slag powder is less than 44 mu m.
Further, the dispersant includes, but is not limited to, sodium tripolyphosphate, sodium hexametaphosphate; the thickener includes, but is not limited to, bentonite, soviet soil; the defoamer includes, but is not limited to, isopropyl alcohol, polyether modified silicone oil; the pore-forming agent includes, but is not limited to, ammonium bicarbonate, ammonium carbonate, and ammonium chloride.
The preparation method of the infrared radiation coating based on the copper slag powder is characterized by comprising the following steps of: and adding a thickening agent into the acrylic resin emulsion according to the proportion, stirring at a high speed to obtain a uniform viscous pasty liquid, sequentially adding a dispersing agent, a defoaming agent, a film forming additive and modified copper slag powder into the liquid, stirring at a high speed for a period of time, finally adding a foaming agent, and stirring at a high speed for a period of time to obtain the infrared radiation coating based on the copper slag powder.
The hierarchical pore infrared radiation coating is prepared by coating the infrared radiation coating based on copper slag powder on the surface of a substrate, drying for a period of time, heating to 700-1400 ℃, and preserving heat for a period of time.
Further, the heating mechanism is as follows: heating to 200 ℃, wherein the heating speed is less than 3 ℃/min, and preserving heat for 0.5h; continuously heating to 700-1400 ℃, wherein the temperature is lower than 600 ℃, the heating speed is higher than 5 ℃/min, the temperature is higher than 600 ℃, the heating speed is lower than 5 ℃/min, and the heat preservation time is 2-4 h.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention is adsorbed on the surface of copper slag particles by the oily modifier, so that a large amount of oily groups are adsorbed on the surface of the particles, the surface tension of the copper slag particles is changed, and Fe in the copper slag is changed when the temperature exceeds 500 ℃ in the coating preparation process 2 SiO 4 The decomposition is started, oily groups on the surfaces of copper slag particles are cracked, and larger vapor pressure is generated in the surface area, and Fe is generated under the action of vapor pressure constraint force 2 SiO 4 Decomposition into Fe 3 O 4 And SiO 2 Small particles, fe in the coating as the temperature increases 3 O 4 Gradually oxidized to Fe 2 O 3 With SiO 2 The particles are connected to form a microporous structure of < 5 μm. Meanwhile, the pore-forming agent is decomposed at high temperature to generate gas, and 10-30 mu m of micropores are left in the coating to form the multi-pore infrared radiation coating.
(2) The multistage hole infrared radiation coating prepared by the invention has higher emissivity in the wave band of 0.75-25 mu m, the emissivity of 0.75-2.5 mu m is 0.88-0.92,2.5-25 mu m, and the emissivity is 0.9-0.96, so that the multistage hole infrared radiation coating can be used for improving heat exchange efficiency, remarkably improving energy utilization rate and achieving the purpose of energy conservation.
The multistage pore structure provides additional internal interface change for the copper slag coating, enhances the repeated reflection of infrared rays on the micropore interface, and enhances the absorption effect by the repeated internal reflection, thereby improving the infrared emissivity. In addition, the multistage pore structure widens the infrared broadband absorption, so that the copper slag coating has better infrared absorption capacity at 0.75-2.5 mu m and 8-25 mu m, and greatly improves the emissivity of 2.5-8 mu m, so that the copper slag coating has excellent infrared absorption capacity in a wider band range. Meanwhile, in the high-temperature use process, the hierarchical pore structure overcomes the Fe in the copper slag 3 O 4 Oxidation causes technical drawbacks of the coating emissivity decay.
(3) According to the invention, the oily modifier is adopted to modify the surface of copper slag particles, so that a large amount of oily groups are adsorbed on the surfaces of the particles, and the oily groups and the solvent form a water-in-oil (continuous phase is an oil phase, and disperse phase is an aqueous phase) uniform dispersion system in the water-based paint, so that the copper slag particles can be cooperatively dispersed and Fe is obtained 2 SiO 4 Decomposition into uniform Fe 3 O 4 And SiO 2 Small particles are beneficial to improving the uniformity of the coating and micropores of 1-5 mu m.
Drawings
FIG. 1 is a surface view of the coating of example 1;
fig. 2 is a partial enlarged view of the coating surface of example 1.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
An infrared radiation coating based on copper slag powder is prepared from the following components in percentage by mass: 50 parts of acrylic resin emulsion, 40 parts of modified copper slag powder, 2 parts of thickener, 0.5 part of dispersing agent, 0.3 part of defoamer, 2 parts of pore-forming agent and 1 part of film forming auxiliary agent.
The preparation method of the modified copper slag powder comprises the following steps: the mass ratio of the copper slag powder to the oily modifier is 1: and 0.3, adding the copper slag powder and the oily modifier into ethanol solution, heating in a water bath at a certain temperature, stirring for 30-60 min, filtering and drying to obtain modified copper slag powder. The oily modifier is a mixture of cyclohexane, tween 80 (sorbitan monooleate polyoxyethylene ether) and Span80 (sorbitan oleate), and cyclohexane: tween 80: span80 mass ratio is 50:1:0.5.
the grain diameter of the copper slag is less than 44 mu m.
The heating temperature in the water bath is 60 ℃.
The dispersing agent is sodium tripolyphosphate; the thickener is bentonite; the defoaming agent is simethicone.
The pore-forming agent is ammonium bicarbonate.
The preparation method of the infrared radiation coating based on the copper slag powder comprises the following steps: adding a thickening agent into the acrylic resin emulsion according to the proportion, stirring at a high speed to obtain a uniform viscous pasty liquid, sequentially adding a dispersing agent, a defoaming agent, a film forming additive and modified copper slag powder into the liquid, stirring at a high speed for 1 hour, finally adding a foaming agent, and stirring at a high speed for 2 hours at 35 ℃ to obtain the infrared radiation coating.
The infrared radiation coating is coated on the surfaces of metal and refractory materials, naturally dried for 24 hours, heated to 200 ℃, the heating speed is less than 3 ℃/min, and kept for 0.5 hour; continuously heating to 1200 ℃, wherein the temperature is lower than 600 ℃, the heating speed is higher than 5 ℃/min, the temperature is higher than 600 ℃, the heating speed is lower than 5 ℃/min, and the heat preservation time is 2h, so that the hierarchical pore infrared radiation coating is prepared. The emissivity of the coating is 0.75-2.5 μm and 0.9, and the emissivity of the coating is 2.5-25 μm and 0.96. After 1000 hours of heat treatment at 1200 ℃, the emissivity of the coating layer is 0.75-2.5 μm and is 0.9, and the emissivity of the coating layer is 2.5-25 μm and is 0.95.
As can be seen from FIGS. 1 and 2, the multi-level hole infrared radiation coating prepared in this example has a multi-level hole structure, and the air holes are composed of micropores with the pore diameters of < 5 μm and 10-30 μm. The temperature is lower than 200 ℃, the heating speed is lower than 3 ℃/min, the temperature is slowly increased, the pore-forming agent is fully decomposed to generate 10-30 mu m of micropores, the temperature is lower than 600 ℃, the heating speed is higher than 5 ℃/min, and the speed is fastIn the heating process, oily groups on the surface of copper slag are cracked, and a large vapor pressure is rapidly generated on the surface, so that Fe is generated 2 SiO 4 Decomposition into Fe 3 O 4 And SiO 2 The small particles, in turn, bond to each other, creating micropores < 5 μm. Under the condition of not changing the phase composition of the coating, the multi-stage micropores with the aperture smaller than 5 mu m and 10-30 mu m can widen the absorption of infrared wave bands, enhance the absorption rate, simultaneously, the grains in the coating are small and uniformly distributed, further enhance the infrared scattering absorption and enhance the infrared emissivity.
Example 2
An infrared radiation coating based on copper slag powder is prepared from the following components in percentage by mass: 40 parts of acrylic resin emulsion, 50 parts of modified copper slag powder, 2 parts of thickener, 0.5 part of dispersing agent, 0.3 part of defoamer, 1 part of pore-forming agent and 0.5 part of film forming auxiliary agent.
The preparation method of the modified copper slag powder comprises the following steps: the mass ratio of the copper slag powder to the oily modifier is 1: and 0.4, adding the copper slag powder and the oily modifier into ethanol solution, heating in a water bath at a certain temperature, stirring for 30-60 min, filtering and drying to obtain modified copper slag powder. The oily modifier is a mixture of cyclohexane, tween 80 (sorbitan monooleate polyoxyethylene ether) and Span80 (sorbitan oleate), and cyclohexane: tween 80: span80 mass ratio is 45:1:0.3.
the grain diameter of the copper slag is less than 44 mu m.
The heating temperature in the water bath is 40 ℃.
The dispersing agent is sodium hexametaphosphate; the thickener is bentonite; the defoaming agent is simethicone.
The pore-forming agent is ammonium carbonate.
The preparation method of the infrared radiation paint based on the copper slag powder comprises the following steps: adding a thickening agent into the acrylic resin emulsion according to the proportion, stirring at a high speed to obtain a uniform viscous pasty liquid, sequentially adding a dispersing agent, a defoaming agent, a film forming additive and modified copper slag powder into the liquid, stirring at a high speed for 1 hour, finally adding a foaming agent, and stirring at a high speed for 2 hours at 35 ℃ to obtain the infrared radiation coating.
The infrared radiation coating is coated on the surfaces of metal and refractory materials, naturally dried for 24 hours, heated to 200 ℃, and heated at a speed of 2 ℃/min, and kept for 0.5 hour; continuously heating to 1400 ℃, wherein the temperature is lower than 600 ℃, the heating speed is higher than 5 ℃/min, the temperature is higher than 600 ℃, the heating speed is lower than 5 ℃/min, and the heat preservation time is 4 hours, so that the hierarchical pore infrared radiation coating is prepared. The emissivity of the coating layer is 0.75-2.5 mu m, 0.92,2.5-25 mu m and 0.93. After 1000 hours of heat treatment at 1400 ℃, the emissivity of the coating layer of 0.75-2.5 μm is 0.88,2.5-25 μm and the emissivity is 0.94.
Example 3
An infrared radiation coating based on copper slag powder is prepared from the following components in percentage by mass: 60 parts of acrylic resin emulsion, 30 parts of modified copper slag powder, 4 parts of thickener, 0.3 part of dispersing agent, 0.1 part of defoamer, 3 parts of pore-forming agent and 0.5 part of film forming auxiliary agent.
The preparation method of the modified copper slag powder comprises the following steps: the mass ratio of the copper slag powder to the oily modifier is 1: and 0.3, adding the copper slag powder and the oily modifier into ethanol solution, heating in a water bath at a certain temperature, stirring for 30-60 min, filtering and drying to obtain modified copper slag powder. The oily modifier is a mixture of cyclohexane, tween 80 (sorbitan monooleate polyoxyethylene ether) and Span80 (sorbitan oleate), and cyclohexane: tween 80: span80 mass ratio is 60:0.5:0.5.
the grain diameter of the copper slag is less than 44 mu m.
The heating temperature in the water bath is 70 ℃.
The dispersing agent is sodium hexametaphosphate; the thickener is Suzhou soil; the defoamer of (2) is isopropanol.
The pore-forming agent is ammonium bicarbonate.
The preparation method of the infrared radiation paint based on the copper slag powder comprises the following steps: adding a thickening agent into the acrylic resin emulsion according to the proportion, stirring at a high speed to obtain a uniform viscous pasty liquid, sequentially adding a dispersing agent, a defoaming agent, a film forming additive and modified copper slag powder into the liquid, stirring at a high speed for 1 hour, finally adding a foaming agent, and stirring at a high speed for 2 hours at 35 ℃ to obtain the infrared radiation coating.
The infrared radiation coating is coated on the surfaces of metal and refractory materials, naturally dried for 24 hours, heated to 200 ℃, and heated at a speed of 2 ℃/min, and kept for 0.5 hour; continuously heating to 1000 ℃, wherein the temperature is lower than 600 ℃, the heating speed is higher than 5 ℃/min, the temperature is higher than 600 ℃, the heating speed is lower than 5 ℃/min, and the heat preservation time is 3 hours, so that the hierarchical pore infrared radiation coating is prepared. The emissivity of the coating is 0.75-2.5 μm and 0.9, and the emissivity of the coating is 2.5-25 μm and 0.94. After 1000 hours of heat treatment at 1000 ℃, the emissivity of the coating layer is 0.75-2.5 μm and is 0.9, and the emissivity of the coating layer is 2.5-25 μm and is 0.95.
Example 4
An infrared radiation coating based on copper slag powder is prepared from the following components in percentage by mass: 45 parts of acrylic resin emulsion, 45 parts of modified copper slag powder, 3 parts of thickener, 0.4 part of dispersing agent, 0.2 part of defoamer, 2 parts of pore-forming agent and 2 parts of film forming auxiliary agent.
The preparation method of the modified copper slag powder comprises the following steps: the mass ratio of the copper slag powder to the oily modifier is 1: and 0.3, adding the copper slag powder and the oily modifier into ethanol solution, heating in a water bath at a certain temperature, stirring for 30-60 min, filtering and drying to obtain modified copper slag powder. The oily modifier is cyclohexane, tween 80 (sorbitan monooleate polyoxyethylene ether) or fatty alcohol polyoxyethylene ether, span80 (sorbitan oleate) or lauric acid glyceride mixture, cyclohexane: tween 80 or fatty alcohol polyoxyethylene ether: span80 or glycerol laurate mass ratio is 50:2:1.
the grain diameter of the copper slag is less than 44 mu m.
The heating temperature in the water bath is 50 ℃.
The dispersing agent is sodium tripolyphosphate; the thickener is bentonite; the defoamer is isopropanol.
The pore-forming agent is ammonium chloride.
The preparation method of the infrared radiation paint based on the copper slag powder comprises the following steps: adding a thickening agent into the acrylic resin emulsion according to the proportion, stirring at a high speed to obtain a uniform viscous pasty liquid, sequentially adding a dispersing agent, a defoaming agent, a film forming additive and modified copper slag powder into the liquid, stirring at a high speed for 1 hour, finally adding a foaming agent, and stirring at a high speed for 2 hours at 35 ℃ to obtain the infrared radiation coating.
The infrared radiation coating is coated on the surfaces of metal and refractory materials, naturally dried for 24 hours, heated to 200 ℃, and heated at a speed of 2 ℃/min, and kept for 0.5 hour; continuously heating to 700, wherein the temperature is lower than 600 ℃, the heating speed is higher than 5 ℃/min, the temperature is higher than 600 ℃, the heating speed is lower than 5 ℃/min, and the heat preservation time is 4 hours, so that the hierarchical pore infrared radiation coating is prepared. The emissivity of the coating layer is 0.75-2.5 mu m, 0.88,2.5-25 mu m and 0.90. After 1000 hours of heat treatment at 700 ℃, the emissivity of the coating layer of 0.75-2.5 μm is 0.88,2.5-25 μm and the emissivity is 0.90.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the foregoing examples are provided for the purpose of illustration only and are not intended to limit the scope of the invention, and that various modifications or additions and substitutions to the described specific embodiments may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the accompanying claims. It should be understood by those skilled in the art that any modification, equivalent substitution, improvement, etc. made to the above embodiments according to the technical substance of the present invention should be included in the scope of protection of the present invention.
Claims (10)
1. An infrared radiation coating based on copper slag powder is characterized in that: the material comprises the following raw materials in parts by weight: 40-60 parts of acrylic resin emulsion, 30-50 parts of modified copper slag powder, 2-4 parts of thickener, 0.3-0.7 part of dispersing agent, 0.1-0.3 part of defoamer, 1-3 parts of pore-forming agent and 0.5-2 parts of film forming auxiliary agent.
2. An infrared radiation paint based on copper slag powder as defined in claim 1, wherein: the modified copper slag powder is prepared by modifying copper slag powder through an oily modifier.
3. An infrared radiation paint based on copper slag powder as defined in claim 2, wherein: the specific preparation process of the modified copper slag powder comprises the following steps: adding copper slag powder and an oily modifier in a certain mass ratio into an ethanol solution, heating in a water bath at 40-70 ℃, stirring for 30-60 min, and filtering to obtain modified copper slag powder.
4. An infrared radiation paint based on copper slag powder as defined in claim 2, wherein: the oily modifier is a mixture of cyclohexane, sorbitan monooleate polyoxyethylene ether or fatty alcohol polyoxyethylene ether, sorbitan oleate or glycerol laurate, and the mass ratio of the cyclohexane, the sorbitan monooleate polyoxyethylene ether or fatty alcohol polyoxyethylene ether, the sorbitan oleate or the glycerol laurate is (45-60): (0.5-2): (0.3-1).
5. An infrared radiation paint based on copper slag powder as defined in claim 3, wherein: the mass ratio of the copper slag powder to the oily modifier is 1: (0.2-0.4).
6. An infrared radiation paint based on copper slag powder as defined in claim 1, wherein: the particle size of the copper slag particles is less than 44 mu m.
7. An infrared radiation paint based on copper slag powder as defined in claim 1, wherein: the dispersant includes, but is not limited to, sodium tripolyphosphate, sodium hexametaphosphate; the thickener includes, but is not limited to, bentonite, soviet soil; the defoamer includes, but is not limited to, isopropyl alcohol, polyether modified silicone oil; the pore-forming agent includes, but is not limited to, ammonium bicarbonate, ammonium carbonate, and ammonium chloride.
8. A method for producing an infrared radiation paint based on copper slag powder as claimed in any one of claims 1 to 7, characterized in that: and adding a thickening agent into the acrylic resin emulsion according to the proportion, stirring at a high speed to obtain a uniform viscous pasty liquid, sequentially adding a dispersing agent, a defoaming agent, a film forming additive and modified copper slag powder into the liquid, stirring at a high speed for a period of time, finally adding a foaming agent, and stirring at a high speed for a period of time to obtain the infrared radiation coating based on the copper slag powder.
9. A hierarchical pore infrared radiation coating, characterized by: the copper slag powder-based infrared radiation coating is prepared by coating the copper slag powder-based infrared radiation coating on the surface of a substrate, drying for a period of time, heating to 700-1400 ℃, and preserving heat for a period of time.
10. A multi-level hole infrared radiation coating as set forth in claim 9, wherein: the heating mechanism is as follows: heating to 200 ℃, wherein the heating speed is less than 3 ℃/min, and preserving heat for 0.5h; continuously heating to 700-1400 ℃, wherein the temperature is lower than 600 ℃, the heating speed is higher than 5 ℃/min, the temperature is higher than 600 ℃, the heating speed is lower than 5 ℃/min, and the heat preservation time is 2-4 h.
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| CN1038296A (en) * | 1989-05-27 | 1989-12-27 | 辽宁省建筑材料科学研究所 | A kind of manufacture method of coatings capable of preventing from far infrared radiation |
| KR20030025723A (en) * | 2001-09-20 | 2003-03-29 | 김연숙 | Manufacture of method of far ultra rays radition material |
| CN104761976A (en) * | 2015-03-18 | 2015-07-08 | 蚌埠市高华电子有限公司 | Novel irradiation heat-insulation coating and preparation method thereof |
| CN112375418A (en) * | 2020-10-12 | 2021-02-19 | 复旦大学 | Preparation method of multistage porous radiation refrigeration film coating |
| CN112940578A (en) * | 2021-04-23 | 2021-06-11 | 中国科学院宁波材料技术与工程研究所 | Water-based infrared heat radiation coating with all-band emissivity and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038296A (en) * | 1989-05-27 | 1989-12-27 | 辽宁省建筑材料科学研究所 | A kind of manufacture method of coatings capable of preventing from far infrared radiation |
| KR20030025723A (en) * | 2001-09-20 | 2003-03-29 | 김연숙 | Manufacture of method of far ultra rays radition material |
| CN104761976A (en) * | 2015-03-18 | 2015-07-08 | 蚌埠市高华电子有限公司 | Novel irradiation heat-insulation coating and preparation method thereof |
| CN112375418A (en) * | 2020-10-12 | 2021-02-19 | 复旦大学 | Preparation method of multistage porous radiation refrigeration film coating |
| CN112940578A (en) * | 2021-04-23 | 2021-06-11 | 中国科学院宁波材料技术与工程研究所 | Water-based infrared heat radiation coating with all-band emissivity and preparation method and application thereof |
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