CN111138949A - Multifunctional primer and preparation method thereof - Google Patents
Multifunctional primer and preparation method thereof Download PDFInfo
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- CN111138949A CN111138949A CN202010045200.4A CN202010045200A CN111138949A CN 111138949 A CN111138949 A CN 111138949A CN 202010045200 A CN202010045200 A CN 202010045200A CN 111138949 A CN111138949 A CN 111138949A
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- epoxy resin
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D5/08—Anti-corrosive paints
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a multifunctional primer which comprises the following components in parts by weight: 30-40 parts of modified self-crosslinking epoxy resin, 20-25 parts of titanium dioxide, 15-20 parts of anti-rust pigment filler, 0.5-1 part of carbon black, 0.5-2 parts of dispersing agent, 0.1-0.5 part of defoaming agent, 0.2-0.5 part of flatting agent, 2-5 parts of anti-settling agent and 6-20 parts of mixed solvent. The multifunctional primer is added with the modified self-crosslinking epoxy resin, so that the problems of inaccurate proportioning, long drying time and great waste in field construction in the prior art are solved, and the multifunctional primer only needs one group in field construction, is directly used, does not participate in any proportioning, does not have any waste and volatile matters, so that the multifunctional primer has the effect of environmental protection.
Description
Technical Field
The invention relates to the technical field of primers in chemical industry, in particular to a multifunctional primer and a preparation method thereof.
Background
The primer is the first layer of the paint system and is used for improving the adhesive force of the finish paint, increasing the fullness of the finish paint, providing alkali resistance, providing an anti-corrosion function and the like, and simultaneously ensuring the uniform absorption of the finish paint so that the paint system can exert the best effect. The functions of the finish paint and the primer paint are different, the finish paint is more focused on the final decoration and appearance effect, and the primer paint is focused on improving the adhesive force, the anticorrosion function, the alkali resistance and the like. In the using process of buildings, a large amount of energy can be consumed by heating, air conditioning and the like of the buildings, the energy consumption of the buildings in China accounts for 30% of the energy consumption of the whole society at present, and the energy conservation of the buildings is urgent. The most direct and effective method for building energy conservation is to use heat preservation and insulation materials to compound with the building, so that the building achieves heat preservation and heat insulation, the use of heating, air conditioning and the like is reduced, and the aim of energy conservation is achieved.
Most of common joint coating materials in the market adopt a two-component system in the aspect of priming paint, the site construction proportion is inaccurate, the drying time is long, and the waste is large.
Disclosure of Invention
The multifunctional primer and the preparation method thereof solve the problems of inaccurate on-site construction ratio, long drying time and great waste in the prior art by adding the modified self-crosslinking epoxy resin, only one group of multifunctional primer is needed for on-site construction, the multifunctional primer is directly used, does not participate in any ratio, does not waste any waste, and does not contain volatile matters, so that the multifunctional primer has the effect of environmental protection.
In order to achieve the purpose, the invention provides a multifunctional primer which comprises the following components in parts by weight: 30-40 parts of modified self-crosslinking epoxy resin, 20-25 parts of titanium dioxide, 15-20 parts of anti-rust pigment filler, 0.5-1 part of carbon black, 0.5-2 parts of dispersing agent, 0.1-0.5 part of defoaming agent, 0.2-0.5 part of flatting agent, 2-5 parts of anti-settling agent and 6-20 parts of mixed solvent.
The multifunctional primer comprises the following components in parts by weight: 33-36 parts of modified self-crosslinking epoxy resin, 22-24 parts of titanium dioxide, 17-19 parts of anti-rust pigment filler, 0.7-0.9 part of carbon black, 0.8-1.5 parts of dispersing agent, 0.2-0.4 part of defoaming agent, 0.3-0.4 part of flatting agent, 3-4 parts of anti-settling agent and 12-15 parts of mixed solvent.
The multifunctional primer comprises the following components in parts by weight: 35 parts of modified self-crosslinking epoxy resin, 23 parts of titanium dioxide, 18 parts of antirust pigment filler, 0.8 part of carbon black, 1.0 part of dispersing agent, 0.3 part of defoaming agent, 0.35 part of flatting agent, 3.5 parts of anti-settling agent and 13 parts of mixed solvent.
Further, the anti-settling agent is a fumed silica anti-settling agent.
Further, the dispersant is a hydrophobic dispersant.
Further, the defoaming agent is any one of emulsified silicone oil, a higher alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and polydimethylsiloxane.
Further, the leveling agent is any one of polydimethylsiloxane, polyether polyester modified organic siloxane and alkyl modified organic siloxane.
Further, the mixed solvent comprises xylene, isopropanol and No. 100 solvent oil, and the volume ratio of the xylene, the isopropanol and the No. 100 solvent oil is 1: 1.
The invention also discloses a preparation method of the multifunctional primer as claimed in any one of claims 1 to 3, which is characterized by comprising the following steps:
(1) adding a mixed solvent into the modified epoxy resin, and uniformly stirring to obtain a modified epoxy resin dissolved substance;
(2) adding a dispersing agent, a defoaming agent, a flatting agent and an anti-settling agent into the modified epoxy resin dissolved substance obtained in the step (1) in sequence, and then dispersing at a high speed to uniformly mix the solvents;
(3) adding an anti-rust pigment filler into the product obtained in the step (2), and then uniformly dispersing at a high speed;
(4) and (4) drying the product obtained in the step (3), and then grinding the product to obtain the multifunctional paint.
The technical principle of the invention is as follows: the multifunctional primer disclosed by the invention is added with the self-crosslinking modified epoxy resin, the chain extension reaction is carried out on common epoxy by using a special intermediate of the self-crosslinking modified epoxy resin, the epoxy group is opened, and the special intermediate is embedded, so that the adhesive force, chemical resistance and corrosion resistance of the epoxy resin to various substrates are kept, the flexibility, dryness and workability are improved, and the primer has thermoplasticity and thermosetting property and is widely suitable for self-drying and crosslinking systems.
When the multifunctional primer is manufactured, the self-crosslinking modified epoxy resin is added into a mixed solvent and uniformly stirred, and then a dispersing agent, a defoaming agent, a leveling agent and an anti-settling agent are added, and then high-speed dispersion is performed, so that the self-crosslinking modified epoxy resin has a better effect in the multifunctional primer, can be directly used on a construction site, and does not need to relate to any proportioning problem, no matter in the using process or in the manufacturing process, no volatile substance exists in the multifunctional primer, the harm to the body of a worker in the manufacturing process is small, the protection effect on the body of the worker is realized, after the multifunctional primer is used, the multifunctional primer cannot volatilize into the air to pollute the air, the protection effect on the environment is realized, and the multifunctional primer accords with the standard of green and environment-friendly production.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) the multifunctional primer disclosed by the invention is added with the self-crosslinking modified epoxy resin, the chain extension reaction is carried out on common epoxy by using a special intermediate of the self-crosslinking modified epoxy resin, the epoxy group is opened, and the special intermediate is embedded, so that the adhesive force, chemical resistance and corrosion resistance of the epoxy resin to various substrates are kept, the flexibility, dryness and constructability are improved, and the multifunctional primer has thermoplasticity and thermosetting property and is widely suitable for self-drying and crosslinking systems;
(2) when the multifunctional primer is prepared, the self-crosslinking modified epoxy resin is added into the mixed solvent and uniformly stirred at a constant speed, then the dispersing agent, the defoaming agent, the leveling agent and the anti-settling agent are added, and high-speed dispersion is performed, so that the self-crosslinking modified epoxy resin has a better effect in the multifunctional primer, can be directly used in a construction site, does not need to relate to any proportioning problem, and does not waste in the using process or the preparation process;
(3) the multifunctional primer disclosed by the invention does not contain any volatile substance, is less harmful to the body of a worker in the manufacturing process, realizes the protection effect on the body of the worker, cannot volatilize into the air to pollute the air after being used, realizes the protection effect on the environment, and accords with the standard of green and environment-friendly production.
Detailed Description
All features disclosed in this specification may be combined in any combination, except features and/or steps that are mutually exclusive.
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to specific examples.
Example 1
The multifunctional primer comprises the following components in parts by weight: 30 parts of modified self-crosslinking epoxy resin, 20 parts of titanium dioxide, 15 parts of antirust pigment filler, 0.5 part of carbon black, 0.5 part of hydrophobic dispersant, 0.1 part of polydimethylsiloxane, 0.2 part of alkyl modified organosiloxane, 2 parts of fumed silica anti-settling agent and 6 parts of mixed solvent.
The preparation method specifically comprises the following steps:
(1) adding a mixed solvent into the modified epoxy resin, and uniformly stirring to obtain a modified epoxy resin dissolved substance;
(2) sequentially adding a hydrophobic dispersant, polydimethylsiloxane, alkyl modified organic siloxane and a fumed silica anti-settling agent into the modified epoxy resin solute obtained in the step (1), and then carrying out high-speed dispersion to uniformly mix the solvents;
(3) adding an anti-rust pigment filler into the product obtained in the step (2), and then uniformly dispersing at a high speed;
(4) and (4) drying the product obtained in the step (3), and then grinding the product to obtain the multifunctional paint.
Example 2
The multifunctional primer comprises the following components in parts by weight: 40 parts of modified self-crosslinking epoxy resin, 25 parts of titanium dioxide, 20 parts of antirust pigment filler, 1 part of carbon black, 2 parts of hydrophobic dispersant, 0.5 part of polydimethylsiloxane, 0.5 part of alkyl modified organosiloxane, 5 parts of fumed silica anti-settling agent and 20 parts of mixed solvent.
The preparation method specifically comprises the following steps:
(1) adding a mixed solvent into the modified epoxy resin, and uniformly stirring to obtain a modified epoxy resin dissolved substance;
(2) sequentially adding a hydrophobic dispersant, polydimethylsiloxane, alkyl modified organic siloxane and a fumed silica anti-settling agent into the modified epoxy resin solute obtained in the step (1), and then carrying out high-speed dispersion to uniformly mix the solvents;
(3) adding an anti-rust pigment filler into the product obtained in the step (2), and then uniformly dispersing at a high speed;
(4) and (4) drying the product obtained in the step (3), and then grinding the product to obtain the multifunctional paint.
Example 3
The multifunctional primer comprises the following components in parts by weight: 33 parts of modified self-crosslinking epoxy resin, 22 parts of titanium dioxide, 17 parts of antirust pigment filler, 0.7 part of carbon black, 0.8 part of hydrophobic dispersant, 0.2 part of polydimethylsiloxane, 0.3 part of alkyl modified organosiloxane, 3 parts of fumed silica anti-settling agent and 12 parts of fumed silica anti-settling agent.
The preparation method specifically comprises the following steps:
(1) adding a mixed solvent into the modified epoxy resin, and uniformly stirring to obtain a modified epoxy resin dissolved substance;
(2) sequentially adding a hydrophobic dispersant, polydimethylsiloxane, alkyl modified organic siloxane and a fumed silica anti-settling agent into the modified epoxy resin solute obtained in the step (1), and then carrying out high-speed dispersion to uniformly mix the solvents;
(3) adding an anti-rust pigment filler into the product obtained in the step (2), and then uniformly dispersing at a high speed;
(4) and (4) drying the product obtained in the step (3), and then grinding the product to obtain the multifunctional paint.
Example 4
The multifunctional primer comprises the following components in parts by weight: 36 parts of modified self-crosslinking epoxy resin, 24 parts of titanium dioxide, 19 parts of antirust pigment filler, 0.9 part of carbon black, 1.5 parts of hydrophobic dispersant, 0.4 part of polydimethylsiloxane, 0.4 part of alkyl modified organosiloxane, 4 parts of fumed silica anti-settling agent and 15 parts of fumed silica anti-settling agent.
The preparation method specifically comprises the following steps:
(1) adding a mixed solvent into the modified epoxy resin, and uniformly stirring to obtain a modified epoxy resin dissolved substance;
(2) sequentially adding a hydrophobic dispersant, polydimethylsiloxane, alkyl modified organic siloxane and a fumed silica anti-settling agent into the modified epoxy resin solute obtained in the step (1), and then carrying out high-speed dispersion to uniformly mix the solvents;
(3) adding an anti-rust pigment filler into the product obtained in the step (2), and then uniformly dispersing at a high speed;
(4) and (4) drying the product obtained in the step (3), and then grinding the product to obtain the multifunctional paint.
Example 5
The multifunctional primer comprises the following components in parts by weight: 35 parts of modified self-crosslinking epoxy resin, 23 parts of titanium dioxide, 18 parts of antirust pigment filler, 0.8 part of carbon black, 1.0 part of hydrophobic dispersant, 0.3 part of polydimethylsiloxane, 0.35 part of alkyl modified organosiloxane, 3.5 parts of fumed silica anti-settling agent and 13 parts of mixed solvent.
The preparation method specifically comprises the following steps:
(1) adding a mixed solvent into the modified epoxy resin, and uniformly stirring to obtain a modified epoxy resin dissolved substance;
(2) sequentially adding a hydrophobic dispersant, polydimethylsiloxane, alkyl modified organic siloxane and a fumed silica anti-settling agent into the modified epoxy resin solute obtained in the step (1), and then carrying out high-speed dispersion to uniformly mix the solvents;
(3) adding an anti-rust pigment filler into the product obtained in the step (2), and then uniformly dispersing at a high speed;
(4) and (4) drying the product obtained in the step (3), and then grinding the product to obtain the multifunctional paint.
The technical principle of examples 1 to 5 is: the multifunctional primer disclosed by the invention is added with the self-crosslinking modified epoxy resin, the chain extension reaction is carried out on common epoxy by using a special intermediate of the self-crosslinking modified epoxy resin, the epoxy group is opened, and the special intermediate is embedded, so that the adhesive force, chemical resistance and corrosion resistance of the epoxy resin to various substrates are kept, the flexibility, dryness and workability are improved, and the primer has thermoplasticity and thermosetting property and is widely suitable for self-drying and crosslinking systems.
When the multifunctional primer is manufactured, the self-crosslinking modified epoxy resin is added into a mixed solvent and uniformly stirred, and then a dispersing agent, a defoaming agent, a leveling agent and an anti-settling agent are added, and then high-speed dispersion is performed, so that the self-crosslinking modified epoxy resin has a better effect in the multifunctional primer, can be directly used on a construction site, and does not need to relate to any proportioning problem, no matter in the using process or in the manufacturing process, no volatile substance exists in the multifunctional primer, the harm to the body of a worker in the manufacturing process is small, the protection effect on the body of the worker is realized, after the multifunctional primer is used, the multifunctional primer cannot volatilize into the air to pollute the air, the protection effect on the environment is realized, and the multifunctional primer accords with the standard of green and environment-friendly production.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (9)
1. The multifunctional primer is characterized by comprising the following components in parts by weight: 30-40 parts of modified self-crosslinking epoxy resin, 20-25 parts of titanium dioxide, 15-20 parts of anti-rust pigment filler, 0.5-1 part of carbon black, 0.5-2 parts of dispersing agent, 0.1-0.5 part of defoaming agent, 0.2-0.5 part of flatting agent, 2-5 parts of anti-settling agent and 6-20 parts of mixed solvent.
2. The multifunctional primer according to claim 1, which comprises the following components in parts by weight: 33-36 parts of modified self-crosslinking epoxy resin, 22-24 parts of titanium dioxide, 17-19 parts of anti-rust pigment filler, 0.7-0.9 part of carbon black, 0.8-1.5 parts of dispersing agent, 0.2-0.4 part of defoaming agent, 0.3-0.4 part of flatting agent, 3-4 parts of anti-settling agent and 12-15 parts of mixed solvent.
3. The multifunctional primer according to claim 1, which comprises the following components in parts by weight: 35 parts of modified self-crosslinking epoxy resin, 23 parts of titanium dioxide, 18 parts of antirust pigment filler, 0.8 part of carbon black, 1.0 part of dispersing agent, 0.3 part of defoaming agent, 0.35 part of flatting agent, 3.5 parts of anti-settling agent and 13 parts of mixed solvent.
4. The multifunctional primer according to any one of claims 1 to 3, wherein the anti-settling agent is a fumed silica anti-settling agent.
5. The multifunctional primer according to any one of claims 1-3, wherein said dispersant is a hydrophobic dispersant.
6. The multifunctional primer according to any one of claims 1 to 3, wherein the defoaming agent is any one of silicone emulsion, higher alcohol fatty acid ester complex, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether, and polydimethylsiloxane.
7. The multifunctional primer according to any one of claims 1 to 3, wherein the leveling agent is any one of polydimethylsiloxane, polyether polyester modified organosiloxane and alkyl modified organosiloxane.
8. The multifunctional primer according to any one of claims 1-3, wherein the mixed solvent comprises xylene, isopropanol and No. 100 solvent oil, and the volume ratio of the xylene, the isopropanol and the No. 100 solvent oil is 1: 1.
9. A method for preparing the multifunctional primer according to any one of claims 1 to 3, which is characterized by comprising the following steps:
(1) adding a mixed solvent into the modified epoxy resin, and uniformly stirring to obtain a modified epoxy resin dissolved substance;
(2) adding a dispersing agent, a defoaming agent, a flatting agent and an anti-settling agent into the modified epoxy resin dissolved substance obtained in the step (1) in sequence, and then dispersing at a high speed to uniformly mix the solvents;
(3) adding an anti-rust pigment filler into the product obtained in the step (2), and then uniformly dispersing at a high speed;
(4) and (4) drying the product obtained in the step (3), and then grinding the product to obtain the multifunctional paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010045200.4A CN111138949A (en) | 2020-01-16 | 2020-01-16 | Multifunctional primer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010045200.4A CN111138949A (en) | 2020-01-16 | 2020-01-16 | Multifunctional primer and preparation method thereof |
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| CN111138949A true CN111138949A (en) | 2020-05-12 |
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| CN202010045200.4A Pending CN111138949A (en) | 2020-01-16 | 2020-01-16 | Multifunctional primer and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115785805A (en) * | 2022-12-07 | 2023-03-14 | 上海船舶工艺研究所(中国船舶集团有限公司第十一研究所) | Wear-resistant slurry for high-temperature-resistant workshop primer |
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| CN105713483A (en) * | 2016-02-02 | 2016-06-29 | 广东多正化工科技有限公司 | Multifunctional epoxy universal primer and preparation method thereof |
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| WO2019239304A1 (en) * | 2018-06-15 | 2019-12-19 | Arcelormittal | A coated metallic substrate |
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2020
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| CN105713483A (en) * | 2016-02-02 | 2016-06-29 | 广东多正化工科技有限公司 | Multifunctional epoxy universal primer and preparation method thereof |
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| CN115785805A (en) * | 2022-12-07 | 2023-03-14 | 上海船舶工艺研究所(中国船舶集团有限公司第十一研究所) | Wear-resistant slurry for high-temperature-resistant workshop primer |
| CN115785805B (en) * | 2022-12-07 | 2024-01-05 | 上海船舶工艺研究所(中国船舶集团有限公司第十一研究所) | Wear-resistant slurry for high-temperature-resistant workshop primer |
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Application publication date: 20200512 |