CN112175466A - Water-based steel structure flame-retardant paint suitable for high-temperature environment - Google Patents
Water-based steel structure flame-retardant paint suitable for high-temperature environment Download PDFInfo
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- CN112175466A CN112175466A CN202011143460.1A CN202011143460A CN112175466A CN 112175466 A CN112175466 A CN 112175466A CN 202011143460 A CN202011143460 A CN 202011143460A CN 112175466 A CN112175466 A CN 112175466A
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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
- C09D133/04—Homopolymers or copolymers of esters
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
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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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a water-based steel structure flame-retardant paint suitable for a high-temperature environment, which adopts components of water-based resin emulsion and an inorganic flame retardant and has the characteristics of low price, good paint film hardness and good flame retardant property. Especially, the paint film can still keep complete and good flame retardant effect for a long time in a high temperature environment of more than 70 ℃. In the preparation process, firstly, a mixed flame-retardant additive is prepared, wherein the mixed flame-retardant additive contains mica powder, the main component of the mica powder is silicate, and the mica powder has the characteristics of acid and alkali resistance, corrosion resistance, strong adhesive force and the like; and the addition of zinc phosphate and a small amount of sodium fluosilicate is combined with the mica powder, so that the flame retardant property of the paint film can be remarkably improved.
Description
Technical Field
The invention relates to the technical field of steel surface anticorrosion coating, in particular to water-based steel structure flame-retardant paint suitable for a high-temperature environment.
Background
According to statistics, the direct economic loss caused by metal corrosion in China accounts for about 4% of the total value of national production every year. The problem of corrosion protection of metals is therefore of increasing interest. In the prior metal anticorrosion coating technology, the pretreatment of the metal surface before coating accounts for about 45 percent of the total price of the whole coating project. To protect steel from corrosion and to extend its service life, corrosion-resistant coating of steel is the most economical and effective method. In order to obtain excellent corrosion resistance, the rust on the steel must be removed before coating, otherwise the paint film and the corrosion resistance are poor due to the continuous expansion of the rust. If the surface treatment procedures of rust removal, oil removal, water removal and the like can be reduced or omitted, the coating cost can be obviously reduced, and meanwhile, the painting process can be greatly simplified, so that the labor intensity is reduced, and the harm of rust dust to human bodies is reduced.
At present, the domestic steel structure corrosion prevention still continues to use the old process of coating after sand blasting, although the corrosion prevention effect is better, the sand blasting and shot blasting processes also have the defects of dead corners, high electric energy consumption, dust pollution, noise pollution, high cost and the like of complex structural parts. The invention provides a water-based steel structure flame-retardant paint suitable for high-temperature environments and a preparation method thereof, and aims to achieve better fireproof and flame-retardant effects.
Disclosure of Invention
The invention provides a water-based steel structure flame-retardant paint suitable for a high-temperature environment, which has a good flame-retardant effect, does not need primer, and can be coated at one time.
The water-based steel structure flame-retardant paint suitable for the high-temperature environment comprises the following components in percentage by weight:
35-50% of hydroxyl acrylic emulsion
0.1 to 0.3 percent of pH regulator
15 to 25 percent of mixed flame retardant additive
0.5 to 1.2 percent of film forming additive
0.05 to 0.12 percent of defoaming agent
0.3 to 0.8 percent of wetting agent
0.2 to 0.5 percent of thickening agent
The balance of water.
Preferably, the water-based steel structure flame retardant paint suitable for the high-temperature environment comprises the following main components in percentage by weight:
40 percent of hydroxyl acrylic emulsion
0.2 percent of pH regulator
18.5 percent of mixed flame retardant additive
0.8 percent of film-forming additive
0.1 percent of defoaming agent
0.55 percent of wetting agent
0.35 percent of thickening agent
The balance of water.
Preferably, the mixed flame retardant additive consists of the following components in percentage by weight:
0.5 to 1.2 percent of dispersant
0.05 to 0.2 percent of wetting agent
0.05 to 0.2 percent of pH regulator
18-25% of water-based epoxy resin emulsion
8 to 12 percent of zinc oxide
5 to 9 percent of alumina
3 to 7 percent of mica powder
Zinc phosphate 1-5%
0.1 to 0.5 percent of sodium fluosilicate
The balance of water.
Preferably, the mixed flame retardant additive consists of the following components in percentage by weight:
1.0 percent of dispersant
0.12 percent of wetting agent
0.15 percent of pH regulator
22 percent of waterborne epoxy resin emulsion
10 percent of zinc oxide
7 percent of aluminum oxide
Mica powder 5%
Zinc phosphate 3.5%
0.2 percent of sodium fluosilicate
The balance of water.
A preparation method of water-based steel structure flame-retardant paint suitable for high-temperature environment comprises the following steps:
A. stirring a dispersing agent, a wetting agent and the water-based epoxy resin emulsion for 10-15min at the stirring speed of 100-150rpm, adding a pH regulator, continuously stirring for 8-15min, then adjusting the stirring speed to 250-300rpm, then adding zinc oxide, aluminum oxide, mica powder, zinc phosphate and sodium fluosilicate, continuously stirring for 30-40min, finally adding water, and continuously stirring for 10-15min to obtain a mixed flame-retardant additive;
B. mixing the hydroxyl acrylic emulsion, the film-forming additive, the defoaming agent and the wetting agent at the stirring speed of 200-250rpm, stirring for 15-20min, adding the mixed flame-retardant additive and water, continuing stirring for 10-15min, adjusting the stirring speed to 350-400rpm, adding the pH regulator and the thickening agent, and continuing stirring for 45-60min to obtain the water-based steel structure flame-retardant paint suitable for the high-temperature environment.
The flame-retardant paint disclosed by the invention is characterized in that firstly, a mixed flame-retardant additive is prepared, the mixed flame-retardant additive contains mica powder, the main component of the mica powder is silicate, and the mica powder has the characteristics of acid and alkali resistance, corrosion resistance, strong adhesive force and the like; and the addition of zinc phosphate and a small amount of sodium fluosilicate is combined with the mica powder, so that the flame retardant property of the paint film can be remarkably improved.
Compared with the prior art, the invention has the advantages that: the water-based steel structure flame-retardant paint suitable for the high-temperature environment adopts the components of the water-based resin emulsion and the inorganic flame retardant, and has the characteristics of low price, good paint film hardness and good flame retardant property. Especially, the paint film can still keep complete and good flame retardant effect for a long time in a high temperature environment of more than 70 ℃.
Detailed Description
Example 1:
the water-based steel structure flame-retardant paint suitable for the high-temperature environment comprises the following components in percentage by weight:
40 percent of hydroxyl acrylic emulsion
0.2 percent of pH regulator
18.5 percent of mixed flame retardant additive
0.8 percent of film-forming additive
0.1 percent of defoaming agent
0.55 percent of wetting agent
0.35 percent of thickening agent
The balance of water.
The mixed flame retardant additive comprises the following components in percentage by weight:
1.0 percent of dispersant
0.12 percent of wetting agent
0.15 percent of pH regulator
22 percent of waterborne epoxy resin emulsion
10 percent of zinc oxide
7 percent of aluminum oxide
Mica powder 5%
Zinc phosphate 3.5%
0.2 percent of sodium fluosilicate
The balance of water.
A preparation method of water-based steel structure flame-retardant paint suitable for high-temperature environment comprises the following steps:
A. stirring a dispersing agent, a wetting agent and the water-based epoxy resin emulsion at the stirring speed of 125rpm for 15min, adding a pH regulator, continuously stirring for 10min, adjusting the stirring speed to 285rpm, then adding zinc oxide, aluminum oxide, mica powder, zinc phosphate and sodium fluosilicate, continuously stirring for 40min, finally adding water, and continuously stirring for 12min to obtain a mixed flame retardant additive;
B. and (2) mixing the hydroxyl acrylic emulsion, the film-forming auxiliary agent, the defoaming agent and the wetting agent at the stirring speed of 230rpm, stirring for 12min, adding the mixed flame-retardant additive and water, continuing stirring for 15min, adjusting the stirring speed to 345rpm, adding the pH regulator and the thickening agent, and continuing stirring for 50min to obtain the water-based steel structure flame-retardant paint suitable for the high-temperature environment.
Example 2
The water-based steel structure flame-retardant paint suitable for the high-temperature environment comprises the following components in percentage by weight:
50 percent of hydroxyl acrylic emulsion
0.1 percent of pH regulator
15 percent of mixed flame retardant additive
0.5 percent of film-forming additive
0.12 percent of defoaming agent
0.3 percent of wetting agent
0.5 percent of thickening agent
The balance of water.
The mixed flame retardant additive comprises the following components in percentage by weight:
0.5 percent of dispersant
0.2 percent of wetting agent
0.05 percent of pH regulator
25 percent of waterborne epoxy resin emulsion
8 percent of zinc oxide
9 percent of aluminum oxide
3 percent of mica powder
Zinc phosphate 5%
0.1 percent of sodium fluosilicate
The balance of water.
A preparation method of water-based steel structure flame-retardant paint suitable for high-temperature environment comprises the following steps:
A. stirring a dispersing agent, a wetting agent and the water-based epoxy resin emulsion at the stirring speed of 150rpm for 10min, adding a pH regulator, continuously stirring for 15min, then adjusting the stirring speed to 250rpm, then adding zinc oxide, aluminum oxide, mica powder, zinc phosphate and sodium fluosilicate, continuously stirring for 40min, finally adding water, and continuously stirring for 10min to obtain a mixed flame retardant additive;
B. and (2) mixing the hydroxyl acrylic emulsion, the film-forming auxiliary agent, the defoaming agent and the wetting agent at the stirring speed of 250rpm, stirring for 15min, adding the mixed flame-retardant additive and water, continuing stirring for 15min, adjusting the stirring speed to 350rpm, adding the pH regulator and the thickening agent, and continuing stirring for 60min to obtain the water-based steel structure flame-retardant paint suitable for the high-temperature environment.
Example 3
The water-based steel structure flame-retardant paint suitable for the high-temperature environment comprises the following components in percentage by weight:
35 percent of hydroxyl acrylic emulsion
0.3 percent of pH regulator
25 percent of mixed flame retardant additive
1.2 percent of film-forming additive
0.05 percent of defoaming agent
0.8 percent of wetting agent
0.2 percent of thickening agent
The balance of water.
The mixed flame retardant additive comprises the following components in percentage by weight:
1.2 percent of dispersant
0.05 percent of wetting agent
0.2 percent of pH regulator
18 percent of aqueous epoxy resin emulsion
12 percent of zinc oxide
Alumina 5%
Mica powder 7%
Zinc phosphate 1%
0.5 percent of sodium fluosilicate
The balance of water.
A preparation method of water-based steel structure flame-retardant paint suitable for high-temperature environment comprises the following steps:
A. stirring a dispersing agent, a wetting agent and the water-based epoxy resin emulsion at the stirring speed of 100rpm for 15min, adding a pH regulator, continuously stirring for 8min, adjusting the stirring speed to 300rpm, then adding zinc oxide, aluminum oxide, mica powder, zinc phosphate and sodium fluosilicate, continuously stirring for 30min, finally adding water, and continuously stirring for 15min to obtain a mixed flame retardant additive;
B. and (2) mixing the hydroxyl acrylic emulsion, the film-forming auxiliary agent, the defoaming agent and the wetting agent at the stirring speed of 200rpm, stirring for 20min, adding the mixed flame-retardant additive and water, continuing stirring for 10min, adjusting the stirring speed to 400rpm, adding the pH regulator and the thickening agent, and continuing stirring for 45min to obtain the water-based steel structure flame-retardant paint suitable for the high-temperature environment.
Comparative example 1
The sodium fluosilicate in the example 1 is removed, and the rest proportion and the preparation method are unchanged.
The flame retardant paints of examples 1-3 were tested and the data are shown in Table 1.
Table 1:
the paint film after coating of the flame-retardant paint of example 1 was tested (test standard GB 14907-2002) and the data are shown in Table 2:
table 2:
| detecting items | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| Dry film thickness (mm) | 1.5 | 1.5 | 1.5 | 1.5 |
| Time limit of fire resistance (hours) | 8 | 7.5 | 8 | 2.5 |
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The water-based steel structure flame-retardant paint suitable for the high-temperature environment is characterized by comprising the following components in percentage by weight:
35-50% of hydroxyl acrylic emulsion
0.1 to 0.3 percent of pH regulator
15 to 25 percent of mixed flame retardant additive
0.5 to 1.2 percent of film forming additive
0.05 to 0.12 percent of defoaming agent
0.3 to 0.8 percent of wetting agent
0.2 to 0.5 percent of thickening agent
The balance of water.
2. The water-based steel structure flame retardant paint applicable to high temperature environment as claimed in claim 1, which comprises the following main components in percentage by weight:
40 percent of hydroxyl acrylic emulsion
0.2 percent of pH regulator
18.5 percent of mixed flame retardant additive
0.8 percent of film-forming additive
0.1 percent of defoaming agent
0.55 percent of wetting agent
0.35 percent of thickening agent
The balance of water.
3. The water-based steel structure flame retardant paint applicable to high temperature environment of claim 1 or 2, wherein the mixed flame retardant additive comprises the following components by weight percent:
0.5 to 1.2 percent of dispersant
0.05 to 0.2 percent of wetting agent
0.05 to 0.2 percent of pH regulator
18-25% of water-based epoxy resin emulsion
8 to 12 percent of zinc oxide
5 to 9 percent of alumina
3 to 7 percent of mica powder
Zinc phosphate 1-5%
0.1 to 0.5 percent of sodium fluosilicate
The balance of water.
4. The water-based steel structure flame retardant paint applicable to high temperature environment of claim 3, wherein the mixed flame retardant additive comprises the following components by weight percent:
1.0 percent of dispersant
0.12 percent of wetting agent
0.15 percent of pH regulator
22 percent of waterborne epoxy resin emulsion
10 percent of zinc oxide
7 percent of aluminum oxide
Mica powder 5%
Zinc phosphate 3.5%
0.2 percent of sodium fluosilicate
The balance of water.
5. The water-based steel structure flame retardant paint suitable for high temperature environment of any one of claims 1 to 4, wherein the preparation method comprises the following steps:
A. stirring a dispersing agent, a wetting agent and the water-based epoxy resin emulsion for 10-15min at the stirring speed of 100-150rpm, adding a pH regulator, continuously stirring for 8-15min, then adjusting the stirring speed to 250-300rpm, then adding zinc oxide, aluminum oxide, mica powder, zinc phosphate and sodium fluosilicate, continuously stirring for 30-40min, finally adding water, and continuously stirring for 10-15min to obtain a mixed flame-retardant additive;
B. mixing the hydroxyl acrylic emulsion, the film-forming additive, the defoaming agent and the wetting agent at the stirring speed of 200-250rpm, stirring for 15-20min, adding the mixed flame-retardant additive and water, continuing stirring for 10-15min, adjusting the stirring speed to 350-400rpm, adding the pH regulator and the thickening agent, and continuing stirring for 45-60min to obtain the water-based steel structure flame-retardant paint suitable for the high-temperature environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011143460.1A CN112175466A (en) | 2020-10-23 | 2020-10-23 | Water-based steel structure flame-retardant paint suitable for high-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011143460.1A CN112175466A (en) | 2020-10-23 | 2020-10-23 | Water-based steel structure flame-retardant paint suitable for high-temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112175466A true CN112175466A (en) | 2021-01-05 |
Family
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Family Applications (1)
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| CN202011143460.1A Withdrawn CN112175466A (en) | 2020-10-23 | 2020-10-23 | Water-based steel structure flame-retardant paint suitable for high-temperature environment |
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|---|---|---|---|---|
| CN101857760A (en) * | 2010-07-01 | 2010-10-13 | 华东理工大学 | Aqueous ultra-thin expansion type steel structure fire-proof anti-corrosive paint and preparation method thereof |
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| CN107964299A (en) * | 2017-09-08 | 2018-04-27 | 滁州麦斯特新型建材有限公司 | A kind of water-based metal paint for priming paint and top lacquer and preparation method thereof |
| CN108034332A (en) * | 2017-12-28 | 2018-05-15 | 湖北楚禾新材料有限公司 | A kind of Waterborne Fire Retardant Coatings for Steel and preparation method thereof |
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-
2020
- 2020-10-23 CN CN202011143460.1A patent/CN112175466A/en not_active Withdrawn
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Application publication date: 20210105 |
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