CN112831273A - Water-based self-cleaning overtemperature warning coating and preparation method thereof - Google Patents
Water-based self-cleaning overtemperature warning coating and preparation method thereof Download PDFInfo
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- CN112831273A CN112831273A CN202110119987.9A CN202110119987A CN112831273A CN 112831273 A CN112831273 A CN 112831273A CN 202110119987 A CN202110119987 A CN 202110119987A CN 112831273 A CN112831273 A CN 112831273A
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/26—Thermosensitive paints
-
- 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
-
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/68—Particle size between 100-1000 nm
-
- 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
- C09D7/66—Additives characterised by particle size
- C09D7/69—Particle size larger than 1000 nm
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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention belongs to the technical field of special functional coatings, and particularly relates to a water-based self-cleaning overtemperature warning coating and a preparation method thereof. Solves the problems of high VOC content and high cleaning difficulty of solvent-based coatings. The warning coating comprises water-based organic silicon resin, modified thermosensitive pigment, ground color pigment, super-hydrophobic particles, filler, water-based auxiliary agent, cosolvent and water. The water-based organic silicon resin with good temperature resistance is taken as a base material, so that good mechanical properties and low VOC content of a coating are provided; the treated thermal sensitive pigment and the ground color are used as a color-changing pigment system, and silicate and metal oxide are used as fillers, so that the color-changing performance, the mechanical strength and the high-temperature stability of the coating are realized; super-hydrophobic particles and an auxiliary agent are added to realize the self-cleaning function of the coating.
Description
Technical Field
The invention belongs to the technical field of special functional coatings, and particularly relates to a water-based self-cleaning overtemperature warning coating and a preparation method thereof.
Background
The overtemperature warning coating is mainly used for overtemperature warning of the outer wall of oil refining chemical equipment or other high-temperature equipment needing temperature monitoring, and can simultaneously play a role in protecting equipment such as steel, ceramics and the like; when the surface temperature of the kettle wall and the like reaches or exceeds 370 ℃, the coating can be changed from blue to white within a certain time, namely, the temperature of equipment is warned to be abnormal, and measures are taken in time. The existing overtemperature warning coating is a solvent type coating, contains a large amount of organic solvent, and has great harm to human bodies and environment. After the overtemperature warning paint is used for a period of time, the surface of the coating can be polluted by dust, oil stain, rain stain and the like, the color of the surface becomes dark, the color change condition of the coating is not easy to observe, and the surface needs to be manually cleaned.
Disclosure of Invention
The invention provides a water-based self-cleaning overtemperature warning coating and a preparation method thereof, which effectively solve the problems of high VOC content and high cleaning difficulty of solvent-based coatings and aims to provide a water-based organic silicon overtemperature warning coating which can change color at 370 ℃ and has a self-cleaning function on a coating.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
one of the purposes of the invention is to provide a water-based self-cleaning overtemperature warning coating, which comprises the following components in parts by weight: 30.0 to 39.0 percent of base material; 12.0 to 19.0 percent of thermal sensitive pigment; 12.0 to 19.0 percent of ground color pigment; 8.0 to 15.0 percent of silicate filler; 3.0 to 7.0 percent of super-hydrophobic particles; 0.9 to 1.8 percent of auxiliary agent; 4.0 to 10.0 percent of cosolvent; 8.0 to 14.0 percent of water.
The base material is water-based organic silicon resin with the type of
50E, solids content 50%.
The thermal pigment is B-type phthalocyanine blue treated by a silane coupling agent;
the processing steps are as follows: step 1, adding type B phthalocyanine blue into a 5% KH550 ethanol solution, and stirring;
and 2, soaking for more than 8 hours, and airing at room temperature.
The base color pigment is rutile titanium dioxide.
The silicate filler is talcum powder and mica powder, the specification is chemical pure grade, and the fineness is 1250-2000 meshes.
The super-hydrophobic particles are silicon dioxide particles with micro-nano structures, wherein the silicon dioxide particles are formed by nano silicon dioxide particles with the size of 30-150 nm and subjected to silane surface treatment and micron-sized silicon dioxide particles with the size of 5-20 microns.
The metal compound is chemically pure zinc oxide.
The auxiliary agent is a mixture of BYK-110 and BYK-104S, and the weight ratio of BYK-110 to BYK-104S is 4.5 to 5.5.
The cosolvent is industrial grade PM.
The invention also aims to provide a preparation method of the water-based self-cleaning overtemperature warning coating, which is characterized by comprising the following steps: the method comprises the following steps:
s1, surface treatment of the thermal sensitive pigment: adding type B phthalocyanine blue into KH550 ethanol solution, stirring and airing;
s2, weighing the modified thermal sensitive pigment, the ground color pigment, the filler, the water-based auxiliary agent and water according to the formula ratio, and dispersing and grinding to obtain color slurry A;
s3, weighing the water-based organic silicon resin with the formula amount, mixing the water-based organic silicon resin with the color paste liquid A, adding the super-hydrophobic particles with the formula amount, and filtering to obtain the water-based self-cleaning overtemperature warning coating.
The invention has the beneficial effects that: the 370 ℃ overtemperature warning coating is prepared by taking water-based organic silicon resin as a base material, taking B type phthalocyanine blue subjected to surface treatment by a silane coupling agent as a thermal sensitive pigment, taking R type titanium dioxide as a contrast pigment, adding silicon dioxide super-hydrophobic particles with a micro-nano structure, a filler, an auxiliary agent and the like, and has the following obvious effects: low VOC, the color change temperature of 370 ℃, super-hydrophobic self-cleaning function, the color change time of 35 minutes and the temperature indication error of +/-7 ℃.
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples:
example one
Weighing 18.0g of thermal sensitive pigment, 18.0g of ground color, 10.0g of filler, 1.5g of water-based auxiliary agent, 4.0g of cosolvent and 9.5g of water according to the formula ratio, dispersing for 10-15 minutes by using a high-speed dispersion machine, transferring into a grinding machine, grinding for 1-2 hours, and obtaining color slurry A with the fineness of less than 20 microns; weighing 33.0g of water-based organic silicon resin, adding the water-based organic silicon resin into a mixing tank, starting stirring, adding the color slurry A while stirring, stirring for 10-15 minutes at the rotating speed of 1000-1300 r/m, then adding 4.0g of silicon dioxide particles, stirring for 45-50 minutes at a high speed (1400-1600 r/m), and filtering to obtain the self-cleaning 370 ℃ overtemperature warning coating based on the water-based organic silicon.
Example two
Weighing 18.0g of thermal sensitive pigment, 18.0g of ground color, 10.0g of filler, 1.5g of water-based auxiliary agent, 4.0g of cosolvent and 9.5g of water according to the formula ratio, dispersing for 10-15 minutes by using a high-speed dispersion machine, transferring into a grinding machine, grinding for 1-2 hours, and obtaining color slurry A with the fineness of less than 20 microns; weighing 33.0g of water-based organic silicon resin, adding the water-based organic silicon resin into a mixing tank, starting stirring, adding the color slurry A while stirring, stirring for 10-15 minutes at the rotating speed of 1000-1300 r/m, then adding 4.0g of silicon dioxide particles, stirring for 45-50 minutes at a high speed (1400-1600 r/m), and filtering to obtain the self-cleaning 370 ℃ overtemperature warning coating based on the water-based organic silicon.
The properties of the coatings obtained from examples 1 and 2 are as follows:
the mechanical properties of the coatings obtained from examples 1 and 2 are as follows:
it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The water-based self-cleaning overtemperature warning coating is characterized in that: the coating comprises the following components in parts by weight: 30.0 to 39.0 percent of base material; 12.0 to 19.0 percent of thermal sensitive pigment; 12.0 to 19.0 percent of ground color pigment; 8.0 to 15.0 percent of silicate filler; 3.0 to 7.0 percent of super-hydrophobic particles; 0.9 to 1.8 percent of auxiliary agent; 4.0 to 10.0 percent of cosolvent; 8.0 to 14.0 percent of water.
2. The aqueous self-cleaning over-temperature warning coating as claimed in claim 1, wherein: the base material is water-based organic silicon resin with the type of
MP 50E, solids content 50%.
3. The aqueous self-cleaning over-temperature warning coating as claimed in claim 1, wherein: the thermal pigment is B-type phthalocyanine blue treated by a silane coupling agent;
the processing steps are as follows: step 1, adding type B phthalocyanine blue into a 5% KH550 ethanol solution, and stirring;
and 2, soaking for more than 8 hours, and airing at room temperature.
4. The aqueous self-cleaning over-temperature warning coating as claimed in claim 1, wherein: the base color pigment is rutile titanium dioxide.
5. The aqueous self-cleaning over-temperature warning coating as claimed in claim 1, wherein: the silicate filler is talcum powder and mica powder, the specification is chemical pure grade, and the fineness is 1250-2000 meshes.
6. The aqueous self-cleaning over-temperature warning coating as claimed in claim 1, wherein: the super-hydrophobic particles are silicon dioxide particles with micro-nano structures, wherein the silicon dioxide particles are formed by nano silicon dioxide particles with the size of 30-150 nm and subjected to silane surface treatment and micron-sized silicon dioxide particles with the size of 5-20 microns.
7. The aqueous self-cleaning over-temperature warning coating as claimed in claim 1, wherein: the metal compound is chemically pure zinc oxide.
8. The aqueous self-cleaning over-temperature warning coating as claimed in claim 1, wherein: the auxiliary agent is a mixture of BYK-110 and BYK-104S, and the weight ratio of BYK-110 to BYK-104S is 4.5 to 5.5.
9. The aqueous self-cleaning over-temperature warning coating as claimed in claim 1, wherein: the cosolvent is industrial grade PM.
10. A method for preparing the aqueous self-cleaning over-temperature warning coating as claimed in any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1, surface treatment of the thermal sensitive pigment: adding type B phthalocyanine blue into KH550 ethanol solution, stirring and airing;
s2, weighing the modified thermal sensitive pigment, the ground color pigment, the filler, the water-based auxiliary agent and water according to the formula ratio, and dispersing and grinding to obtain color slurry A;
s3, weighing the water-based organic silicon resin with the formula amount, mixing the water-based organic silicon resin with the color paste liquid A, adding the super-hydrophobic particles with the formula amount, and filtering to obtain the water-based self-cleaning overtemperature warning coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110119987.9A CN112831273A (en) | 2021-01-28 | 2021-01-28 | Water-based self-cleaning overtemperature warning coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110119987.9A CN112831273A (en) | 2021-01-28 | 2021-01-28 | Water-based self-cleaning overtemperature warning coating and preparation method thereof |
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| CN112831273A true CN112831273A (en) | 2021-05-25 |
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| CN202110119987.9A Pending CN112831273A (en) | 2021-01-28 | 2021-01-28 | Water-based self-cleaning overtemperature warning coating and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080250978A1 (en) * | 2007-04-13 | 2008-10-16 | Baumgart Richard J | Hydrophobic self-cleaning coating composition |
| CN101348690A (en) * | 2008-09-05 | 2009-01-21 | 中国海洋石油总公司 | Heatproof corrosion resistant early warning coating |
| CN101760111A (en) * | 2009-11-30 | 2010-06-30 | 北方涂料工业研究设计院 | 300 DEG C-800 DEG C pleochromatic irreversible thermopaint |
| CN110746880A (en) * | 2019-10-16 | 2020-02-04 | 湖北巴司特科技股份有限公司 | Water-based nano material modified high-temperature silicon coating and preparation method thereof |
-
2021
- 2021-01-28 CN CN202110119987.9A patent/CN112831273A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080250978A1 (en) * | 2007-04-13 | 2008-10-16 | Baumgart Richard J | Hydrophobic self-cleaning coating composition |
| CN101348690A (en) * | 2008-09-05 | 2009-01-21 | 中国海洋石油总公司 | Heatproof corrosion resistant early warning coating |
| CN101760111A (en) * | 2009-11-30 | 2010-06-30 | 北方涂料工业研究设计院 | 300 DEG C-800 DEG C pleochromatic irreversible thermopaint |
| CN110746880A (en) * | 2019-10-16 | 2020-02-04 | 湖北巴司特科技股份有限公司 | Water-based nano material modified high-temperature silicon coating and preparation method thereof |
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