CN115926551A - Cordierite infrared reflection heat insulation coating and preparation process thereof - Google Patents
Cordierite infrared reflection heat insulation coating and preparation process thereof Download PDFInfo
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- CN115926551A CN115926551A CN202211363047.5A CN202211363047A CN115926551A CN 115926551 A CN115926551 A CN 115926551A CN 202211363047 A CN202211363047 A CN 202211363047A CN 115926551 A CN115926551 A CN 115926551A
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- 238000000576 coating method Methods 0.000 title claims abstract description 74
- 239000011248 coating agent Substances 0.000 title claims abstract description 66
- 229910052878 cordierite Inorganic materials 0.000 title claims abstract description 48
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000009413 insulation Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 83
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 63
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000000919 ceramic Substances 0.000 claims abstract description 52
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 29
- 239000004005 microsphere Substances 0.000 claims abstract description 28
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002270 dispersing agent Substances 0.000 claims abstract description 23
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004111 Potassium silicate Substances 0.000 claims abstract description 21
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000008367 deionised water Substances 0.000 claims abstract description 21
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 21
- 239000000839 emulsion Substances 0.000 claims abstract description 21
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052912 lithium silicate Inorganic materials 0.000 claims abstract description 21
- 229910052913 potassium silicate Inorganic materials 0.000 claims abstract description 21
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims abstract description 21
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 21
- 239000003755 preservative agent Substances 0.000 claims abstract description 21
- 230000002335 preservative effect Effects 0.000 claims abstract description 21
- 230000008961 swelling Effects 0.000 claims abstract description 21
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 21
- 239000000080 wetting agent Substances 0.000 claims abstract description 21
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 18
- 239000003513 alkali Substances 0.000 claims abstract description 17
- 239000002562 thickening agent Substances 0.000 claims abstract description 17
- -1 alcohol ester Chemical class 0.000 claims abstract description 15
- 239000006185 dispersion Substances 0.000 claims description 40
- 238000004519 manufacturing process Methods 0.000 claims description 40
- 238000003756 stirring Methods 0.000 claims description 24
- 239000011259 mixed solution Substances 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000008199 coating composition Substances 0.000 abstract 1
- IFPMZBBHBZQTOV-UHFFFAOYSA-N 1,3,5-trinitro-2-(2,4,6-trinitrophenyl)-4-[2,4,6-trinitro-3-(2,4,6-trinitrophenyl)phenyl]benzene Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC([N+]([O-])=O)=C1C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C(C=2C(=C(C=3C(=CC(=CC=3[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O)C(=CC=2[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O)=C1[N+]([O-])=O IFPMZBBHBZQTOV-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 229910052909 inorganic silicate Inorganic materials 0.000 description 2
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention relates to the technical field of coatings, in particular to a cordierite infrared reflection heat insulation coating which comprises the following components in parts by weight: 20-28 parts of deionized water, 0.2-0.5 part of dispersant, 0.15-0.3 part of wetting agent, 0.01-0.2 part of antibacterial preservative, 0.2-0.3 part of cellulose ether, 0.01-0.3 part of alcohol ester, 0.2-0.6 part of propylene glycol, 0.1-0.4 part of defoaming agent, 0.1-8 parts of infrared titanium dioxide, 5-10 parts of rutile titanium dioxide, 5-10 parts of aluminum silicate powder, 5-15 parts of sericite powder, 10-15 parts of synthetic cordierite ceramic powder, 5-10 parts of modified acrylic emulsion, 15-25 parts of nano potassium silicate, 5-10 parts of nano lithium silicate, 6-10 parts of hollow ceramic microspheres, 0.1-0.2 part of pH regulator and 0.1-0.6 part of alkali swelling thickener. According to the invention, aluminum silicate powder, sericite powder, synthetic cordierite powder, nano silicate and hollow ceramic microspheres are added into the traditional coating in the traditional coating formula, so that the prepared coating has good effects of reflection, heat insulation, heat preservation and high temperature resistance. In addition, a preparation method of the cordierite infrared reflection heat insulation coating is also disclosed.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a cordierite infrared reflection heat insulation coating and a preparation process thereof.
Background
Because the industry requires coatings with multiple properties, such as heat insulation, corrosion resistance, water resistance, cold resistance, high temperature resistance, etc., the functional requirements of the coatings are higher and higher nowadays, and the single functional coatings are unable to meet the industrial and living requirements.
The high-temperature resistant coating is a functional coating which can still keep certain physicochemical properties under the condition of long-term high temperature (more than or equal to 1000 h) so as to ensure that a protected object can normally run. At present, various high-temperature resistant coatings exist on the world, but the high-temperature resistant performance of the coatings is poor, and industrial requirements cannot be met, for example, the high-temperature resistant coatings need to be coated on the inner wall of a high-temperature furnace to improve the high-temperature resistant performance of the inner wall.
Disclosure of Invention
In order to solve the technical problems, the invention provides a cordierite infrared reflection heat insulation coating and a preparation process thereof.
In order to achieve the purpose, the first invention provides a cordierite infrared reflection heat insulation coating, which adopts the following technical scheme:
the cordierite infrared reflection heat insulation coating comprises the following components in parts by weight: 20-28 parts of deionized water, 0.2-0.5 part of dispersant, 0.15-0.3 part of wetting agent, 0.01-0.2 part of antibacterial preservative, 0.2-0.3 part of cellulose ether, 0.01-0.3 part of alcohol ester, 0.2-0.6 part of propylene glycol, 0.1-0.4 part of defoaming agent, 0.1-8 parts of infrared titanium dioxide, 5-10 parts of rutile titanium dioxide, 5-10 parts of aluminum silicate powder, 5-15 parts of sericite powder, 10-15 parts of synthetic cordierite ceramic powder, 5-10 parts of modified acrylic emulsion, 15-25 parts of nano potassium silicate, 5-10 parts of nano lithium silicate, 6-10 parts of hollow ceramic microspheres, 0.1-0.2 part of pH regulator and 0.1-0.6 part of alkali swelling thickener.
Preferably, the components in parts by weight include: 20-28 parts of deionized water, 0.2-0.5 part of dispersant, 0.15-0.3 part of wetting agent, 0.01-0.2 part of antibacterial preservative, 0.2-0.3 part of cellulose ether, 0.01-0.3 part of alcohol ester, 0.2-0.6 part of propylene glycol, 0.1-0.4 part of defoaming agent, 0.1-8 parts of infrared titanium dioxide, 5-10 parts of rutile titanium dioxide, 5-8 parts of aluminum silicate powder, 8-13 parts of sericite powder, 12-15 parts of synthetic cordierite ceramic powder, 5-10 parts of modified acrylic emulsion, 20-25 parts of nano potassium silicate, 8-10 parts of nano lithium silicate, 8-10 parts of hollow ceramic microspheres, 0.1-0.2 part of pH regulator and 0.2-0.6 part of alkali-soluble swelling agent.
Preferably, the components in parts by weight include: 20-28 parts of deionized water, 0.2-0.5 part of dispersant, 0.15-0.3 part of wetting agent, 0.01-0.2 part of antibacterial preservative, 0.2-0.3 part of cellulose ether, 0.01-0.3 part of alcohol ester, 0.2-0.6 part of propylene glycol, 0.1-0.4 part of defoaming agent, 0.1-8 parts of infrared titanium dioxide, 5-10 parts of rutile titanium dioxide, 6-9 parts of aluminum silicate powder, 6-12 parts of sericite powder, 10-13 parts of synthetic cordierite ceramic powder, 5-10 parts of modified acrylic emulsion, 18-22 parts of nano potassium silicate, 6-9 parts of nano lithium silicate, 6-9 parts of hollow ceramic microspheres, 0.1-0.2 part of pH regulator and 0.3-0.6 part of alkali-0.6 part of swelling agent.
Preferably, the synthetic cordierite ceramic powder is 400-mesh powder, and the sericite powder is 800-mesh powder.
In a second aspect, the invention provides a preparation method of a cordierite infrared reflection heat insulation coating, which specifically adopts the following scheme:
firstly, starting a production dispersion machine, adjusting the rotating speed of the production dispersion machine to 300-500 r/min, sequentially adding deionized water, a dispersing agent, a wetting agent, propylene glycol and alcohol ester twelve according to the formula amount, and stirring for 3-5 min to obtain a uniform mixed solution; adjusting the rotation speed of a production dispersion machine to 800-900 rpm, adding the nano potassium silicate, the nano lithium silicate, the hollow ceramic microspheres, the aluminum silicate powder and the sericite powder according to the formula, dispersing for 10 minutes, sequentially adding the cellulose ether and the pH regulator according to the formula into the mixed solution, and stirring until the cellulose ether and the pH regulator are uniformly dissolved; then regulating the rotation speed of a production dispersion machine to 1400-1600 revolutions per minute, sequentially adding the infrared titanium dioxide, rutile titanium dioxide, synthetic cordierite ceramic powder and the antibacterial preservative according to the formula amount, and dispersing at high speed for 30 minutes; then, regulating the rotation speed of a production dispersion machine to 500 revolutions per minute, adding the modified acrylic emulsion and the defoaming agent according to the formula amount, and stirring uniformly; finally, adding the alkali swelling thickener with the formula amount to adjust the viscosity, thereby obtaining the coating of the invention.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the synthetic cordierite ceramic powder is added into the traditional coating, and the porous structure and the natural infrared reflection effect of the powder are utilized, and in addition, the synthetic cordierite powder is matched with a binder, so that the coating can absorb heat and release heat in the form of infrared radiation; sericite powder is added into the coating, and the excellent ultraviolet ray and infrared ray shielding performance of the coating is utilized, so that the heat preservation and heat insulation effects of the coating can be improved; the superfine aluminum silicate is added into the coating, and the pH value range is 9.7-10.8, so that the coating has a pH value buffering effect and can improve the corrosion resistance of the coating; the hollow ceramic microspheres have extremely high refractoriness which can reach 1600-1700 ℃, the wall of the microspheres is thin and hollow, the cavity is in semi-vacuum, only trace gases (N2, H2, CO2 and the like) exist, the heat conduction is extremely slow and extremely slight, and the refractory performance of the coating can be improved; the inorganic silicate can make the coating film of the coating flame-retardant or non-combustible and can resist the high temperature of 800 ℃.
Detailed Description
Example one
The cordierite infrared reflection heat insulation coating comprises the following raw materials in percentage by weight: 28 parts of deionized water, 0.5 part of dispersant, 0.3 part of wetting agent, 0.2 part of antibacterial preservative, 0.3 part of cellulose ether, 0.3 part of alcohol ester dodeca, 0.6 part of propylene glycol, 0.4 part of defoamer, 8 parts of infrared titanium dioxide, 10 parts of rutile titanium dioxide, 10 parts of aluminum silicate powder, 15 parts of sericite powder, 15 parts of synthetic cordierite ceramic powder, 10 parts of modified acrylic emulsion, 25 parts of nano potassium silicate, 10 parts of nano lithium silicate, 10 parts of hollow ceramic microspheres, 0.2 part of pH regulator and 0.6 part of alkali swelling thickener.
The synthesized cordierite ceramic powder can be coated in a high-temperature furnace body by matching with a binder, so that the coating can absorb heat and release heat in the form of infrared radiation, the temperature in the furnace is uniform, and the thermal efficiency is greatly improved; the service life and the heat efficiency of the high-temperature furnace can be improved to a certain extent, the maintenance frequency of the high-temperature furnace is reduced, and the cost is saved.
The hollow ceramic microspheres have extremely high refractoriness which can reach 1600-1700 ℃, the wall of the microspheres is thin and hollow, the cavity is in semi-vacuum, only trace gases (N2, H2, CO2 and the like) exist, the heat conduction is extremely slow and extremely slight, the fireproof performance of the coating can be improved, and the coating can be coated in a high-temperature furnace.
The pH value of the superfine aluminum silicate ranges from 9.7 to 10.8, so that the superfine aluminum silicate has a pH value buffering effect and can improve the corrosion resistance of the coating, and the high-temperature furnace coated with the material has certain corrosion resistance.
Of course, the use of the coating of the present invention is not limited to the above-mentioned inner wall of the high temperature furnace.
As the nano material is easy to agglomerate after being stored for a long time, if the nano material added into the coating product of the invention is agglomerated, the bacteriostatic and bactericidal effects of a coating film can be influenced, so the dispersant is preferably a special dispersant for the nano material, such as PDT-IC1 which is a model produced by Nanjing Bakkit new material Co.
The preparation method of the coating in the embodiment comprises the following steps: firstly, starting a production dispersion machine, adjusting the rotating speed of the production dispersion machine to 300-500 r/min, sequentially adding deionized water, a dispersing agent, a wetting agent, propylene glycol and alcohol ester twelve according to the formula amount, and stirring for 3-5 min to obtain a uniform mixed solution; adjusting the rotation speed of a production dispersion machine to 800-900 r/min, adding nano potassium silicate, nano lithium silicate, hollow ceramic microspheres, aluminum silicate powder and sericite powder according to the formula amount, dispersing for 10 min, sequentially adding cellulose ether and a pH regulator according to the formula amount into the mixed solution, and stirring until the cellulose ether and the pH regulator are uniformly dissolved; then regulating the rotation speed of a production dispersion machine to 1400-1600 revolutions per minute, sequentially adding the infrared titanium dioxide, rutile titanium dioxide, synthetic cordierite ceramic powder and the antibacterial preservative according to the formula amount, and dispersing at high speed for 30 minutes; then regulating the rotation speed of the production dispersion machine to 500 revolutions per minute, adding the modified acrylic emulsion and the defoaming agent according to the formula amount, and stirring uniformly; finally, adding alkali swelling thickener according to the formula amount to adjust the viscosity, thus obtaining the coating.
Example two
The cordierite infrared reflection heat insulation coating comprises the following raw materials in percentage by weight:
20 parts of deionized water, 0.2 part of dispersant, 0.15 part of wetting agent, 0.01 part of antibacterial preservative, 0.2 part of cellulose ether, 0.2 part of alcohol ester dodeca, 0.2 part of propylene glycol, 0.1 part of defoamer, 5 parts of infrared titanium dioxide, 5 parts of rutile titanium dioxide, 5 parts of aluminum silicate powder, 5 parts of sericite powder, 10 parts of synthetic cordierite ceramic powder, 5 parts of modified acrylic emulsion, 15 parts of nano potassium silicate, 5 parts of nano lithium silicate, 6 parts of hollow ceramic microspheres, 0.1 part of pH regulator and 0.3 part of alkali swelling thickener.
The preparation method of the coating in the embodiment comprises the following steps: firstly, starting a production dispersion machine, adjusting the rotating speed of the production dispersion machine to be 300-500 r/min, sequentially adding deionized water, a dispersing agent, a wetting agent, propylene glycol and alcohol ester twelve according to the formula amount, and stirring for 3-5 min to obtain a uniform mixed solution; adjusting the rotation speed of a production dispersion machine to 800-900 r/min, adding nano potassium silicate, nano lithium silicate, hollow ceramic microspheres, aluminum silicate powder and sericite powder according to the formula amount, dispersing for 10 min, sequentially adding cellulose ether and a pH regulator according to the formula amount into the mixed solution, and stirring until the cellulose ether and the pH regulator are uniformly dissolved; then regulating the rotation speed of a production dispersion machine to 1400-1600 revolutions per minute, sequentially adding the infrared titanium dioxide, rutile titanium dioxide, synthetic cordierite ceramic powder and the antibacterial preservative according to the formula amount, and dispersing at high speed for 30 minutes; then, regulating the rotation speed of a production dispersion machine to 500 revolutions per minute, adding the modified acrylic emulsion and the defoaming agent according to the formula amount, and stirring uniformly; finally, adding the alkali swelling thickener with the formula amount to adjust the viscosity, thereby obtaining the coating of the invention.
EXAMPLE III
The cordierite infrared reflection heat insulation coating comprises the following raw materials in percentage by weight:
28 parts of deionized water, 0.5 part of a dispersant, 0.3 part of a wetting agent, 0.2 part of an antibacterial preservative, 0.3 part of cellulose ether, 0.3 part of alcohol ester dodeca, 0.6 part of propylene glycol, 0.4 part of a defoaming agent, 8 parts of infrared titanium dioxide, 10 parts of rutile titanium dioxide, 8 parts of aluminum silicate powder, 13 parts of sericite powder, 15 parts of synthetic cordierite ceramic powder, 10 parts of modified acrylic emulsion, 25 parts of nano potassium silicate, 10 parts of nano lithium silicate, 10 parts of hollow ceramic microspheres, 0.2 part of a pH regulator and 0.6 part of an alkali swelling thickener.
The preparation method of the coating in the embodiment comprises the following steps: firstly, starting a production dispersion machine, adjusting the rotating speed of the production dispersion machine to 300-500 r/min, sequentially adding deionized water, a dispersing agent, a wetting agent, propylene glycol and alcohol ester twelve according to the formula amount, and stirring for 3-5 min to obtain a uniform mixed solution; adjusting the rotation speed of a production dispersion machine to 800-900 rpm, adding the nano potassium silicate, the nano lithium silicate, the hollow ceramic microspheres, the aluminum silicate powder and the sericite powder according to the formula, dispersing for 10 minutes, sequentially adding the cellulose ether and the pH regulator according to the formula into the mixed solution, and stirring until the cellulose ether and the pH regulator are uniformly dissolved; then regulating the rotation speed of a production dispersion machine to 1400-1600 revolutions per minute, sequentially adding the infrared titanium dioxide, rutile titanium dioxide, synthetic cordierite ceramic powder and the antibacterial preservative according to the formula amount, and dispersing at high speed for 30 minutes; then, regulating the rotation speed of a production dispersion machine to 500 revolutions per minute, adding the modified acrylic emulsion and the defoaming agent according to the formula amount, and stirring uniformly; finally, adding the alkali swelling thickener with the formula amount to adjust the viscosity, thereby obtaining the coating of the invention.
Example four
The cordierite infrared reflection heat insulation coating comprises the following raw materials in percentage by weight:
20 parts of deionized water, 0.2 part of a dispersant, 0.15 part of a wetting agent, 0.1 part of an antibacterial preservative, 0.2 part of cellulose ether, 0.1 part of alcohol ester dodeca, 0.2 part of propylene glycol, 0.1 part of a defoaming agent, 4 parts of infrared titanium dioxide, 5 parts of rutile titanium dioxide, 5 parts of aluminum silicate powder, 8 parts of sericite powder, 12 parts of synthetic cordierite ceramic powder, 5 parts of modified acrylic emulsion, 20 parts of nano potassium silicate, 8 parts of nano lithium silicate, 8 parts of hollow ceramic microspheres, 0.1 part of a pH regulator and 0.2 part of an alkali swelling thickener.
The preparation method of the coating in the embodiment comprises the following steps: firstly, starting a production dispersion machine, adjusting the rotating speed of the production dispersion machine to 300-500 r/min, sequentially adding deionized water, a dispersing agent, a wetting agent, propylene glycol and alcohol ester twelve according to the formula amount, and stirring for 3-5 min to obtain a uniform mixed solution; adjusting the rotation speed of a production dispersion machine to 800-900 r/min, adding nano potassium silicate, nano lithium silicate, hollow ceramic microspheres, aluminum silicate powder and sericite powder according to the formula amount, dispersing for 10 min, sequentially adding cellulose ether and a pH regulator according to the formula amount into the mixed solution, and stirring until the cellulose ether and the pH regulator are uniformly dissolved; then regulating the rotation speed of a production dispersion machine to 1400-1600 revolutions per minute, sequentially adding the infrared titanium dioxide, rutile titanium dioxide, synthetic cordierite ceramic powder and the antibacterial preservative according to the formula amount, and dispersing at high speed for 30 minutes; then regulating the rotation speed of the production dispersion machine to 500 revolutions per minute, adding the modified acrylic emulsion and the defoaming agent according to the formula amount, and stirring uniformly; finally, adding alkali swelling thickener according to the formula amount to adjust the viscosity, thus obtaining the coating.
EXAMPLE five
28 parts of deionized water, 0.5 part of a dispersant, 0.3 part of a wetting agent, 0.2 part of an antibacterial preservative, 0.3 part of cellulose ether, 0.3 part of alcohol ester dodeca, 0.6 part of propylene glycol, 0.4 part of a defoaming agent, 8 parts of infrared titanium dioxide, 10 parts of rutile titanium dioxide, 9 parts of aluminum silicate powder, 12 parts of sericite powder, 13 parts of synthetic cordierite ceramic powder, 10 parts of modified acrylic emulsion, 22 parts of nano potassium silicate, 9 parts of nano lithium silicate, 9 parts of hollow ceramic microspheres, 0.2 part of a pH regulator and 0.6 part of an alkali swelling thickener.
The preparation method of the coating in the embodiment comprises the following steps: firstly, starting a production dispersion machine, adjusting the rotating speed of the production dispersion machine to 300-500 r/min, sequentially adding deionized water, a dispersing agent, a wetting agent, propylene glycol and alcohol ester twelve according to the formula amount, and stirring for 3-5 min to obtain a uniform mixed solution; adjusting the rotation speed of a production dispersion machine to 800-900 rpm, adding the nano potassium silicate, the nano lithium silicate, the hollow ceramic microspheres, the aluminum silicate powder and the sericite powder according to the formula, dispersing for 10 minutes, sequentially adding the cellulose ether and the pH regulator according to the formula into the mixed solution, and stirring until the cellulose ether and the pH regulator are uniformly dissolved; then regulating the rotation speed of a production dispersion machine to 1400-1600 revolutions per minute, sequentially adding the infrared titanium dioxide, rutile titanium dioxide, synthetic cordierite ceramic powder and the antibacterial preservative according to the formula amount, and dispersing at high speed for 30 minutes; then regulating the rotation speed of the production dispersion machine to 500 revolutions per minute, adding the modified acrylic emulsion and the defoaming agent according to the formula amount, and stirring uniformly; finally, adding alkali swelling thickener according to the formula amount to adjust the viscosity, thus obtaining the coating.
EXAMPLE six
25 parts of deionized water, 0.2 part of dispersant, 0.15 part of wetting agent, 0.1 part of antibacterial preservative, 0.2 part of cellulose ether, 0.2 part of alcohol ester dodeca, 0.2 part of propylene glycol, 0.2 part of defoamer, 6 parts of infrared titanium dioxide, 5 parts of rutile titanium dioxide, 6 parts of aluminum silicate powder, 6 parts of sericite powder, 10 parts of synthetic cordierite ceramic powder, 5 parts of modified acrylic emulsion, 18 parts of nano potassium silicate, 6 parts of nano lithium silicate, 6 parts of hollow ceramic microspheres, 0.1 part of pH regulator and 0.3 part of alkali swelling thickener.
The preparation method of the coating in the embodiment comprises the following steps: firstly, starting a production dispersion machine, adjusting the rotating speed of the production dispersion machine to be 300-500 r/min, sequentially adding deionized water, a dispersing agent, a wetting agent, propylene glycol and alcohol ester twelve according to the formula amount, and stirring for 3-5 min to obtain a uniform mixed solution; adjusting the rotation speed of a production dispersion machine to 800-900 r/min, adding nano potassium silicate, nano lithium silicate, hollow ceramic microspheres, aluminum silicate powder and sericite powder according to the formula amount, dispersing for 10 min, sequentially adding cellulose ether and a pH regulator according to the formula amount into the mixed solution, and stirring until the cellulose ether and the pH regulator are uniformly dissolved; then regulating the rotation speed of a production dispersion machine to 1400-1600 revolutions per minute, sequentially adding the infrared titanium dioxide, rutile titanium dioxide, synthetic cordierite ceramic powder and the antibacterial preservative according to the formula amount, and dispersing at high speed for 30 minutes; then, regulating the rotation speed of a production dispersion machine to 500 revolutions per minute, adding the modified acrylic emulsion and the defoaming agent according to the formula amount, and stirring uniformly; finally, adding alkali swelling thickener according to the formula amount to adjust the viscosity, thus obtaining the coating.
According to the coating prepared by the preparation method, the synthetic cordierite ceramic powder is added into the traditional coating, and the coating can absorb heat and release heat in the form of infrared radiation by utilizing the porous structure and the natural infrared reflection effect of the synthetic cordierite ceramic powder and matching the synthetic cordierite powder with a binder; sericite powder is added into the coating, and the excellent ultraviolet ray and infrared ray shielding performance of the coating is utilized, so that the heat preservation and heat insulation effects of the coating can be improved; the superfine aluminum silicate is added into the coating, and the pH value range is 9.7-10.8, so that the coating has a pH value buffering effect and can improve the corrosion resistance of the coating; the hollow ceramic microspheres have extremely high refractoriness which can reach 1600-1700 ℃, the wall of the microspheres is thin and hollow, the cavity is in semi-vacuum, only trace gases (N2, H2, CO2 and the like) exist, the heat conduction is extremely slow and extremely slight, and the refractory performance of the coating can be improved; the inorganic silicate can make the coating film of the coating flame-retardant or non-combustible and can resist the high temperature of 800 ℃.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (5)
1. The cordierite infrared reflection heat insulation coating is characterized by comprising the following components in parts by weight: 20-28 parts of deionized water, 0.2-0.5 part of dispersant, 0.15-0.3 part of wetting agent, 0.01-0.2 part of antibacterial preservative, 0.2-0.3 part of cellulose ether, 0.01-0.3 part of alcohol ester, 0.2-0.6 part of propylene glycol, 0.1-0.4 part of defoaming agent, 0.1-8 parts of infrared titanium dioxide, 5-10 parts of rutile titanium dioxide, 5-10 parts of aluminum silicate powder, 5-15 parts of sericite powder, 10-15 parts of synthetic cordierite ceramic powder, 5-10 parts of modified acrylic emulsion, 15-25 parts of nano potassium silicate, 5-10 parts of nano lithium silicate, 6-10 parts of hollow ceramic microspheres, 0.1-0.2 part of pH regulator and 0.1-0.6 part of alkali swelling thickener.
2. The cordierite infrared reflection heat insulation coating according to claim 1 is characterized by comprising the following components in parts by weight: 20-28 parts of deionized water, 0.2-0.5 part of dispersant, 0.15-0.3 part of wetting agent, 0.01-0.2 part of antibacterial preservative, 0.2-0.3 part of cellulose ether, 0.01-0.3 part of alcohol ester, 0.2-0.6 part of propylene glycol, 0.1-0.4 part of defoaming agent, 0.1-8 parts of infrared titanium dioxide, 5-10 parts of rutile titanium dioxide, 5-8 parts of aluminum silicate powder, 8-13 parts of sericite powder, 12-15 parts of synthetic cordierite ceramic powder, 5-10 parts of modified acrylic emulsion, 20-25 parts of nano potassium silicate, 8-10 parts of nano lithium silicate, 8-10 parts of hollow ceramic microspheres, 0.1-0.2 part of pH regulator and 0.2-0.6 part of alkali-soluble swelling agent.
3. The cordierite infrared reflection heat insulation coating as claimed in claim 1, which is characterized by comprising the following components in parts by weight: 20-28 parts of deionized water, 0.2-0.5 part of dispersant, 0.15-0.3 part of wetting agent, 0.01-0.2 part of antibacterial preservative, 0.2-0.3 part of cellulose ether, 0.01-0.3 part of alcohol ester, 0.2-0.6 part of propylene glycol, 0.1-0.4 part of defoaming agent, 0.1-8 parts of infrared titanium dioxide, 5-10 parts of rutile titanium dioxide, 6-9 parts of aluminum silicate powder, 6-12 parts of sericite powder, 10-13 parts of synthetic cordierite ceramic powder, 5-10 parts of modified acrylic emulsion, 18-22 parts of nano potassium silicate, 6-9 parts of nano lithium silicate, 6-9 parts of hollow ceramic microspheres, 0.1-0.2 part of pH regulator and 0.3-0.6 part of alkali-0.6 part of swelling agent.
4. The cordierite infrared reflection thermal insulation coating material as claimed in claims 1 to 3, wherein the synthetic cordierite ceramic powder is 400 mesh powder, and the sericite powder is 800 mesh powder.
5. The preparation process of the cordierite infrared reflection thermal insulation coating according to claim 4, characterized by comprising the following steps:
firstly, starting a production dispersion machine, adjusting the rotating speed of the production dispersion machine to 300-500 r/min, sequentially adding deionized water, a dispersing agent, a wetting agent, propylene glycol and alcohol ester twelve according to the formula amount, and stirring for 3-5 min to obtain a uniform mixed solution; adjusting the rotation speed of a production dispersion machine to 800-900 r/min, adding nano potassium silicate, nano lithium silicate, hollow ceramic microspheres, aluminum silicate powder and sericite powder according to the formula amount, dispersing for 10 min, sequentially adding cellulose ether and a pH regulator according to the formula amount into the mixed solution, and stirring until the cellulose ether and the pH regulator are uniformly dissolved; then regulating the rotation speed of a production dispersion machine to 1400-1600 revolutions per minute, sequentially adding the infrared titanium dioxide, rutile titanium dioxide, synthetic cordierite ceramic powder and the antibacterial preservative according to the formula amount, and dispersing at high speed for 30 minutes; then, regulating the rotation speed of a production dispersion machine to 500 revolutions per minute, adding the modified acrylic emulsion and the defoaming agent according to the formula amount, and stirring uniformly;
finally, adding alkali swelling thickener according to the formula amount to adjust the viscosity, thus obtaining the coating.
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