CN108003784B - Dual-color-changing overtemperature alarm paint - Google Patents
Dual-color-changing overtemperature alarm paint Download PDFInfo
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- CN108003784B CN108003784B CN201711224067.3A CN201711224067A CN108003784B CN 108003784 B CN108003784 B CN 108003784B CN 201711224067 A CN201711224067 A CN 201711224067A CN 108003784 B CN108003784 B CN 108003784B
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- paint film
- overtemperature alarm
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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
- C09D5/29—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for multicolour effects
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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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
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a double-color-change overtemperature alarm paint and a preparation method thereof. The invention provides a double-color-change overtemperature alarm paint with green primary color and a production and use method thereof, which solve the problem that the existing single-color-change overtemperature alarm paint cannot meet the use requirements of novel chemical equipment. By coating the bicolor overtemperature alarm paint with the primary color of green on the surface of the heated object, when the surface temperature of the coated object reaches 180-220 ℃, the paint film can change from green to blue within 1 hour; when the surface temperature of the object to be coated is continuously increased to 310-350 ℃, the paint film can change from blue to white within 1 hour. The whole color changing process is irreversible, the color changing is obvious, and the device has an overtemperature alarm function.
Description
Technical Field
The invention relates to a double-color-change overtemperature alarm paint and a preparation method thereof.
Background
In the petrochemical industry, most reactors operate at high temperature under pressure. When the wall of the reactor is locally damaged, the heat insulation material fails or the internal reaction is abnormal, the temperature on the surface of the reactor is suddenly increased, and great potential safety hazard is caused. Although the means for measuring temperature using instruments is quite abundant, it is impossible to install temperature measuring instruments and monitoring equipment on the entire surface of the reactor due to the limitations in the plant space environment and economy. At present, a method which is generally adopted at home and abroad is to coat a layer of irreversible color paint with a temperature indication function on a reactor. When the temperature of the coated object reaches or exceeds the specified temperature, the paint film can generate obvious color change within a certain time, so that the warning effect is achieved, operators can find out the problem points of the reactor in time, the reason is analyzed, and the coping work and the remedial measures are well taken.
With the continuous development of the chemical industry, the requirements for temperature measurement and early warning on the surface of chemical equipment are higher and higher. The temperature measurement early warning function can not completely meet the use requirement only by using the single-color overtemperature warning paint. The new chemical plant chemical equipment requires that the overtemperature alarm paint can be continuously used after primary alarm occurs, and secondary alarm, namely, double-color-change overtemperature alarm paint can be realized at a higher temperature point. The single color-changing overtemperature alarm paint can only carry out primary color-changing early warning and cannot realize secondary alarm, so the use is limited. The double-color-change overtemperature alarm paint can meet the temperature measurement and early warning requirements of novel chemical equipment, can completely replace single-color-change overtemperature alarm paint, and has wide application prospect.
Disclosure of Invention
The invention aims to provide a bicolor overtemperature alarm paint with green primary color and a production and use method thereof, which solve the problem that the existing single-color overtemperature alarm paint cannot meet the use requirements of novel chemical equipment.
The coating comprises the following components in percentage by mass:
the resin is any one of commercially available methyl silicone resin and methyl phenyl silicone resin, the solid content of the resin is 50%, and the resin is used for adhering various pigments in the coating to form a coating film.
The blue pigment is phthalocyanine blue β, and is used as a color-changing pigment in the paint.
The yellow pigment A is lightfast yellow G and is used as a color-changing pigment in paint.
The yellow pigment B is lightfast yellow 10G, is used in the coating as a color-changing pigment to be matched with the yellow pigment A, and mainly plays a role in regulating the color-changing temperature.
The white pigment is one or more of titanium dioxide, lithopone and talcum powder, is used as a filler in the coating, and can play a role in displaying white.
The diluent is xylene.
The invention discloses a production method of a double-color-change overtemperature alarm paint, which is characterized by comprising the following production steps:
(1) weighing the components according to the formula, firstly adding resin and one third of diluent, and uniformly stirring; then adding the blue pigment, the yellow pigment and the white pigment in sequence, and stirring while adding the materials to prepare color paste;
(2) grinding and dispersing: feeding the prepared color paste into a sand mill for grinding and dispersing, adding the rest diluent when the measured fineness is not more than 15 mu m, and uniformly stirring;
(3) discharging: filtering the dispersed paint liquid by using a wire mesh with the fineness of less than 120 meshes, and canning for later use.
The use of the coating material:
① the coating method is the same as that of the conventional coating, and the coating can be sprayed or brushed and has a proper thickness of 20-30 μm;
② if the color of the paint film changes once but the color of the paint film is intact, the paint film after the change can be directly coated with a layer of the overtemperature warning paint, if the paint film is pulverized and cracked, the whole paint film must be ground or cleaned by a cleaning agent and then can be coated again.
According to the invention, the bicolor overtemperature alarm paint with the primary color of green is coated on the surface of a heated object, and when the surface temperature of the coated object reaches 180-220 ℃, the paint film can change from green to blue within 1 hour; when the surface temperature of the object to be coated is continuously increased to 310-350 ℃, the paint film can change from blue to white within 1 hour. The whole color changing process is irreversible, the color changing is obvious, and the device has an overtemperature alarm function.
Detailed Description
Example 1, 30.0g of methyl phenyl silicone resin and 10.0g of xylene are weighed and stirred uniformly, then β 3.0.0 g of phthalocyanine blue, 10.0g of fast yellow, 10G12.0g of fast yellow, 8.0g of titanium dioxide, 3.0g of lithopone and 4.0g of talcum powder are sequentially weighed and added while stirring to prepare color paste, then the color paste is sent to a sand mill for grinding and dispersion, when the fineness is not more than 15 mu m, the rest 20.0g of xylene is added, and after stirring uniformly, the mixture is filtered and packaged by a 120-mesh screen to prepare the green bicolor overtemperature alarm paint.
The prepared coating was sprayed on the surface of a steel plate having a specification of 60mm x 120mm using a PQ-1 type spray gun, and the dry film thickness was 20-30 um. The paint film was tested for color change using a muffle furnace with the results: changing the paint film from green to blue after the temperature is 220 ℃ and the time is 1 h; after 350 ℃ for 1h, the paint film turns white from blue.
Example 2, weighing 35.0g of methyl phenyl silicone resin and 11.5g of dimethylbenzene, uniformly stirring, then sequentially weighing β 2.5.5 g of phthalocyanine blue, 8.0g of fast yellow, 10G8.0g of fast yellow and 12.0g of titanium dioxide, stirring while adding materials to prepare color paste, then sending the color paste into a sand mill for grinding and dispersing, adding the rest 23.0g of dimethylbenzene when the measured fineness is not more than 15 mu m, uniformly stirring, and filtering and packaging by using a 120-mesh screen to prepare the green bicolor overtemperature alarm paint.
The prepared coating was sprayed on the surface of a steel plate having a specification of 60mm x 120mm using a PQ-1 type spray gun, and the dry film thickness was 20-30 um. The paint film was tested for color change using a muffle furnace with the results: changing the paint film from green to blue after the temperature is 200 ℃ and the time is 1 h; after 330 ℃ for 1h, the paint film turns white from blue.
Example 3, weighing 50.0g of methyl phenyl silicone resin and 9.0g of dimethylbenzene, uniformly stirring, then sequentially weighing and adding β 1.0.0 g of phthalocyanine blue, 3.0g of fast yellow, 10G4.0g of fast yellow, 10.0g of titanium dioxide and 5.0g of talcum powder, stirring while adding materials to prepare color paste, then sending the color paste into a sand mill for grinding and dispersing, adding the rest 18.0g of dimethylbenzene when the measured fineness is not more than 15 mu m, uniformly stirring, and filtering and packaging by using a 120-mesh screen to prepare the green bicolor overtemperature alarm paint.
The prepared coating was sprayed on the surface of a steel plate having a specification of 60mm x 120mm using a PQ-1 type spray gun, and the dry film thickness was 20-30 um. The paint film was tested for color change using a muffle furnace with the results: changing the paint film from green to blue after multiplying by 1h at 180 ℃; after 310 ℃ for 1h, the paint film turns white from blue.
Example 4, weighing 40.0g of methyl phenyl silicone resin and 12.0g of xylene, uniformly stirring, then sequentially weighing and adding β 2.0.0 g of phthalocyanine blue, 6.0g of fast yellow, 10G6.0g of fast yellow, 8.0g of titanium dioxide and 2.0g of lithopone, stirring while adding materials to prepare color paste, then sending the color paste into a sand mill for grinding and dispersing, adding the rest 24.0g of xylene when the measured fineness is not more than 15 mu m, uniformly stirring, and filtering and packaging by using a 120-mesh screen to prepare the green bicolor overtemperature alarm paint.
The prepared coating was sprayed on the surface of a steel plate having a specification of 60mm x 120mm using a PQ-1 type spray gun, and the dry film thickness was 20-30 um. The paint film was tested for color change using a muffle furnace with the results: changing the paint film from green to blue after being multiplied by 1 hour at 190 ℃; after the temperature of 320 ℃ is multiplied by 1h, the paint film turns white from blue.
Claims (4)
1. The double-color-change overtemperature alarm paint is characterized by comprising the following components in percentage by mass:
the resin is any one of methyl silicone resin and methyl phenyl silicone resin, the solid content is 50%, the blue pigment is phthalocyanine blue β, the yellow pigment A is fast yellow G, the yellow pigment B is fast yellow 10G, and the white pigment is one or more of titanium dioxide, lithopone and talcum powder.
2. The dual color-changing overtemperature warning paint as claimed in claim 1, wherein the diluent is xylene.
3. The method for producing a bichromal overtemperature warning paint as claimed in claim 1,
(1) weighing the components according to the formula, firstly adding resin and one third of diluent, and uniformly stirring; then adding the blue pigment, the yellow pigment and the white pigment in sequence, and stirring while adding the materials to prepare color paste;
(2) grinding and dispersing: feeding the prepared color paste into a sand mill for grinding and dispersing, adding the rest diluent when the measured fineness is not more than 15 mu m, and uniformly stirring;
(3) discharging: filtering the dispersed paint liquid by using a wire mesh with the fineness of less than 120 meshes, and canning for later use.
4. The use method of the bichromal overtemperature warning paint as claimed in claim 1,
① the paint can be sprayed or brushed, and the thickness is suitable for 20-30 μm;
② if the color of the paint film changes once but the color of the paint film is intact, the paint film after the change can be directly coated with a layer of the overtemperature warning paint, if the paint film has the conditions of pulverization, cracking and the like, the whole paint film must be ground off or cleaned by a cleaning agent and then can be coated again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711224067.3A CN108003784B (en) | 2017-11-29 | 2017-11-29 | Dual-color-changing overtemperature alarm paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711224067.3A CN108003784B (en) | 2017-11-29 | 2017-11-29 | Dual-color-changing overtemperature alarm paint |
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| Publication Number | Publication Date |
|---|---|
| CN108003784A CN108003784A (en) | 2018-05-08 |
| CN108003784B true CN108003784B (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711224067.3A Active CN108003784B (en) | 2017-11-29 | 2017-11-29 | Dual-color-changing overtemperature alarm paint |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348690A (en) * | 2008-09-05 | 2009-01-21 | 中国海洋石油总公司 | Heatproof corrosion resistant early warning coating |
| CN101705051A (en) * | 2008-12-30 | 2010-05-12 | 北方涂料工业研究设计院 | Production method of 150-500 DEG C pleochromatic irreversible thermopaint |
| CN102492362A (en) * | 2011-11-28 | 2012-06-13 | 北方涂料工业研究设计院 | 800DEG C-1250DEG C multi color-changing irreversible thermopaint |
| CN102732123A (en) * | 2012-07-04 | 2012-10-17 | 北方涂料工业研究设计院 | 70-140 DEG C multi-color variable thermochromic coating |
| CN104893391A (en) * | 2015-05-18 | 2015-09-09 | 苏州市贝克生物科技有限公司 | Medical reversible temperature-indicating coating and preparation method thereof |
| CN105111996A (en) * | 2015-09-30 | 2015-12-02 | 河南永丽化工有限公司 | Two-component colorful flexible polysulfide ammonia ester sealant and preparation method thereof |
| CN105860827A (en) * | 2015-12-09 | 2016-08-17 | 中昊北方涂料工业研究设计院有限公司 | 1100 DEG C-1350 DEG C multi color-changing irreversible temperature indicating coating |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006035806A1 (en) * | 2006-02-28 | 2007-09-06 | Schott Ag | Color effect coating system and coatings based on photonic crystals, a process for their preparation and their use |
-
2017
- 2017-11-29 CN CN201711224067.3A patent/CN108003784B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348690A (en) * | 2008-09-05 | 2009-01-21 | 中国海洋石油总公司 | Heatproof corrosion resistant early warning coating |
| CN101705051A (en) * | 2008-12-30 | 2010-05-12 | 北方涂料工业研究设计院 | Production method of 150-500 DEG C pleochromatic irreversible thermopaint |
| CN102492362A (en) * | 2011-11-28 | 2012-06-13 | 北方涂料工业研究设计院 | 800DEG C-1250DEG C multi color-changing irreversible thermopaint |
| CN102732123A (en) * | 2012-07-04 | 2012-10-17 | 北方涂料工业研究设计院 | 70-140 DEG C multi-color variable thermochromic coating |
| CN104893391A (en) * | 2015-05-18 | 2015-09-09 | 苏州市贝克生物科技有限公司 | Medical reversible temperature-indicating coating and preparation method thereof |
| CN105111996A (en) * | 2015-09-30 | 2015-12-02 | 河南永丽化工有限公司 | Two-component colorful flexible polysulfide ammonia ester sealant and preparation method thereof |
| CN105860827A (en) * | 2015-12-09 | 2016-08-17 | 中昊北方涂料工业研究设计院有限公司 | 1100 DEG C-1350 DEG C multi color-changing irreversible temperature indicating coating |
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| Publication number | Publication date |
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| CN108003784A (en) | 2018-05-08 |
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