CN111675928A - High-flash-point high-solid-content safe epoxy zinc-rich coating and preparation method thereof - Google Patents
High-flash-point high-solid-content safe epoxy zinc-rich coating and preparation method thereof Download PDFInfo
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- CN111675928A CN111675928A CN202010272469.6A CN202010272469A CN111675928A CN 111675928 A CN111675928 A CN 111675928A CN 202010272469 A CN202010272469 A CN 202010272469A CN 111675928 A CN111675928 A CN 111675928A
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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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/56—Amines together with other curing agents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
- C08G59/623—Aminophenols
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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
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention discloses a high-flash-point high-solid-content safe epoxy zinc-rich coating and a preparation method thereof, and the high-flash-point high-solid-content safe epoxy zinc-rich coating is prepared from the following raw materials in percentage by mass: 10-20 wt% of low molecular weight epoxy resin; nonylphenol, 2-5 wt%; 2-5 wt% of a dodecato tetradecyl glycidyl ether; 0.5-1 wt% of hydrogenated castor oil; 70-80 wt% of zinc powder; 2-5 wt% of benzyl alcohol; 5-10 wt% of modified amine curing agent. According to the invention, the product blank in the field of the prior art is solved, the paint has low VOC content, high solid content, high flash point and anti-corrosion performance, meets the safety requirements in environmental protection, use, transportation and storage, and can meet the application requirements in the field of epoxy zinc-rich paint anti-corrosion.
Description
Technical Field
The invention relates to the field of epoxy zinc-rich paint, in particular to high-flash point and high-solid content safe epoxy zinc-rich paint and a preparation method thereof.
Background
In the field of corrosion prevention of surface layers of steel materials, it is generally known to use anticorrosive coatings of different compositions to achieve corrosion prevention of the surface layers of the materials. For material anticorrosion engineering, the anticorrosive coating plays an important role all the time due to the advantages of simple and convenient construction process, obvious effect, low cost, outstanding performance, long service life and the like. In the process of researching and improving the corrosion resistance of the anticorrosive paint, the inventor finds that the anticorrosive paint in the prior art has at least the following problems:
the traditional epoxy zinc-rich coating takes an important role all the time by using solvent type low molecular weight epoxy resin as polymer resin, and a cured paint film of the traditional epoxy zinc-rich coating has the advantages of strong adhesion to a substrate, small curing shrinkage, high mechanical property, good chemical stability and the like, but the prepared coating also has the defects of high VOC content, low flash point, flammability, no environmental protection requirement, potential safety hazard in use, transportation and storage and the like.
In view of the above, there is a need to develop a high-flash-point high-solid-content safe epoxy zinc-rich paint and a preparation method thereof, so as to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention mainly aims to provide the safe epoxy zinc-rich coating with high flash point and high solid content and the preparation method thereof, which solve the product blank in the prior art, have low VOC content, high solid content, high flash point and corrosion resistance, meet the safety requirements in environmental protection, use, transportation and storage, and can meet the application requirements in the field of corrosion resistance of the epoxy zinc-rich coating.
In order to achieve the above objects and other advantages according to the present invention, there is provided a high flash point high solid content safety epoxy zinc-rich paint, which is prepared from the following raw materials in percentage by mass:
10-20 wt% of low molecular weight epoxy resin;
nonylphenol, 2-5 wt%;
2-5 wt% of a dodecato tetradecyl glycidyl ether;
0.5-1 wt% of hydrogenated castor oil;
70-80 wt% of zinc powder;
2-5 wt% of benzyl alcohol;
5-10 wt% of modified amine curing agent.
Optionally, the modified amine curing agent is prepared from the following raw materials in percentage by mass:
10-15 wt% of benzyl alcohol;
15-25 wt% of isophorone diamine;
5-12 wt% of low molecular weight epoxy resin;
45-55 wt% of polyoxypropylene diamine;
2, 4, 6-tris (dimethylaminomethyl) phenol, 2-5 wt%.
Optionally, the modified amine curing agent is prepared by the following steps:
step A1, sequentially adding benzyl alcohol and isophorone diamine in designed amount into a reaction kettle, and dispersing for 10-15 minutes;
step A2, adding the low molecular weight epoxy resin with the designed amount while stirring, and continuously dispersing for 30 minutes after the material is added; heating to 80 ℃, and keeping the temperature at 80 +/-3 ℃ for 2 hours;
step A3, adding the designed amount of polyoxypropylene diamine and 2, 4, 6-tris (dimethylaminomethyl) phenol while stirring, and continuously dispersing for 30 minutes after the addition of the materials is finished; and cooling after meeting the requirement to obtain the modified amine curing agent.
The invention further discloses a method for preparing the high-flash-point high-solid-content safe epoxy zinc-rich coating, which comprises the following steps:
step B1, sequentially putting the designed parts of low molecular weight epoxy resin, nonylphenol, carbon dodecyl-tetradecyl glycidyl ether and hydrogenated castor oil into a material mixing cylinder, and dispersing and stirring at a high speed of 1800 rpm for 20-30 minutes until the mixed solution is uniform and has no large particles;
step B2, sequentially adding zinc powder in designed amount into the mixed solution prepared in the step one, dispersing at a high speed at a rotation speed of 1800 rpm while feeding until the fineness is not more than 90 μm, continuously dispersing and heating to 55-65 ℃, stirring and keeping the temperature for 15 minutes;
step B3, adding a designed amount of benzyl alcohol into the mixed solution prepared in the step two, performing low-speed dispersion at a rotating speed of 800 revolutions per minute while feeding, dispersing for 5-10 minutes, and cooling to normal temperature;
and step B4, adding the modified amine curing agent in the designed amount into the mixed solution prepared in the step three, dispersing for 5-10 minutes, and subpackaging to obtain the high-flash-point high-solid-content safe epoxy zinc-rich paint.
One of the above technical solutions has the following advantages or beneficial effects: the epoxy zinc-rich coating solves the product blank in the field of the prior art, has the advantages of simple production process, low VOC content, high solid content and high flash point, solves the safety problems in environmental protection, use, transportation and storage, can meet the application requirement of corrosion resistance of the epoxy zinc-rich coating, and can improve the corrosion resistance and better safety by 2-3 times compared with the conventional epoxy zinc-rich coating.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
The high-flash-point high-solid-content safe epoxy zinc-rich coating is prepared from the following raw materials in percentage by mass:
low molecular weight epoxy resin, 10 wt%;
nonylphenol, 2 wt%;
3 wt% of a cyclododecyl to tetradecyl glycidyl ether;
hydrogenated castor oil, 0.8 wt%;
zinc powder, 75 wt%;
benzyl alcohol, 4.2 wt%;
5 wt% of modified amine curing agent.
Further, the modified amine curing agent is prepared from the following raw materials in percentage by mass:
benzyl alcohol, 15 wt%;
15 wt% of isophorone diamine;
12 wt% of low molecular weight epoxy resin;
polyoxypropylene diamine, 55 wt%;
2, 4, 6-tris (dimethylaminomethyl) phenol, 3% by weight.
Further, the modified amine curing agent is prepared by the following steps:
step A1, sequentially adding benzyl alcohol and isophorone diamine in designed amount into a reaction kettle, and dispersing for 10 minutes;
step A2, adding the low molecular weight epoxy resin with the designed amount while stirring, and continuously dispersing for 30 minutes after the material is added; heating to 80 ℃, and keeping the temperature at 80 +/-3 ℃ for 2 hours;
step A3, adding the designed amount of polyoxypropylene diamine and 2, 4, 6-tris (dimethylaminomethyl) phenol while stirring, and continuously dispersing for 30 minutes after the addition of the materials is finished; and cooling after meeting the requirement to obtain the modified amine curing agent.
The invention further provides a method for preparing the high-flash-point high-solid-content safe epoxy zinc-rich coating, which comprises the following steps:
step B1, sequentially putting the designed parts of low molecular weight epoxy resin, nonylphenol, carbon dodecyl-tetradecyl glycidyl ether and hydrogenated castor oil into a material mixing cylinder, and dispersing and stirring at a high speed of 1800 rpm for 25 minutes until the mixed solution is uniform and has no large particles;
step B2, sequentially adding the designed zinc powder into the mixed solution prepared in the step one, dispersing at a high speed at a rotation speed of 1800 rpm while feeding, until the fineness is 85 μm, continuously dispersing and heating to 55 ℃, stirring and keeping the temperature for 15 minutes;
step B3, adding the designed amount of benzyl alcohol into the mixed solution prepared in the step two, performing low-speed dispersion at the rotating speed of 800 revolutions per minute while feeding, performing dispersion for 8 minutes, and cooling to normal temperature;
and step B4, adding the modified amine curing agent in the designed amount into the mixed solution prepared in the step three, dispersing for 8 minutes, and subpackaging to obtain the high-flash-point high-solid-content safe epoxy zinc-rich paint.
Example 2
The high-flash-point high-solid-content safe epoxy zinc-rich coating is prepared from the following raw materials in percentage by mass:
11 wt% of low molecular weight epoxy resin;
nonylphenol, 3 wt%;
2% by weight of a cyclododecyl to tetradecyl glycidyl ether;
hydrogenated castor oil, 0.9 wt%;
zinc powder, 76 wt%;
benzyl alcohol, 2.1 wt%;
5 wt% of modified amine curing agent.
Further, the modified amine curing agent is prepared from the following raw materials in percentage by mass:
benzyl alcohol, 15 wt%;
18 wt% of isophorone diamine;
11 wt% of low molecular weight epoxy resin;
polyoxypropylene diamine, 53.5 wt%;
2, 4, 6-tris (dimethylaminomethyl) phenol, 2.5% by weight.
Further, the modified amine curing agent is prepared by the following steps:
step A1, sequentially adding benzyl alcohol and isophorone diamine in designed amount into a reaction kettle, and dispersing for 12 minutes;
step A2, adding the low molecular weight epoxy resin with the designed amount while stirring, and continuously dispersing for 30 minutes after the material is added; heating to 80 ℃, and keeping the temperature at 80 +/-3 ℃ for 2 hours;
step A3, adding the designed amount of polyoxypropylene diamine and 2, 4, 6-tris (dimethylaminomethyl) phenol while stirring, and continuously dispersing for 30 minutes after the addition of the materials is finished; and cooling after meeting the requirement to obtain the curing agent.
The invention further provides a method for preparing the high-flash-point high-solid-content safe epoxy zinc-rich coating, which comprises the following steps:
step B1, sequentially putting the low molecular weight epoxy resin, the nonylphenol, the carbon dodecyl-tetradecyl glycidyl ether and the hydrogenated castor oil into a material mixing cylinder according to the designed parts by weight, and dispersing and stirring at a high speed of 1800 rpm for 28 minutes until the mixed solution is uniform and has no large particles;
step B2, sequentially adding zinc powder in designed amount into the mixed solution prepared in the step one, dispersing at a high speed at a rotation speed of 1800 rpm while feeding, until the fineness is 80 μm, continuously dispersing and heating to 60 ℃, stirring and keeping the temperature for 15 minutes;
step B3, adding benzyl alcohol in the designed amount into the mixed solution prepared in the step two, dispersing at a low speed of 800 revolutions per minute while adding materials, dispersing for 10 minutes, and cooling to normal temperature;
and step B4, adding the modified amine curing agent in the designed amount into the mixed solution prepared in the step three, dispersing for 7 minutes, and subpackaging to obtain the high-flash-point high-solid-content safe epoxy zinc-rich paint.
Example 3
The high-flash-point high-solid-content safe epoxy zinc-rich coating is prepared from the following raw materials in percentage by mass:
12 wt% of low molecular weight epoxy resin;
nonylphenol, 2.2 wt%;
2% by weight of a cyclododecyl to tetradecyl glycidyl ether;
hydrogenated castor oil, 0.8 wt%;
zinc powder, 76 wt%;
benzyl alcohol, 2 wt%;
5 wt% of modified amine curing agent.
Further, the modified amine curing agent is prepared from the following raw materials in percentage by mass:
benzyl alcohol, 15 wt%;
20 wt% of isophorone diamine;
low molecular weight epoxy resin, 10 wt%;
polyoxypropylene diamine, 52.6 wt%;
2, 4, 6-tris (dimethylaminomethyl) phenol, 2.4% by weight.
Further, the modified amine curing agent is prepared by the following steps:
step A1, sequentially adding benzyl alcohol and isophorone diamine in designed amount into a reaction kettle, and dispersing for 14 minutes;
step A2, adding the low molecular weight epoxy resin with the designed amount while stirring, and continuously dispersing for 30 minutes after the material is added; heating to 80 ℃, and keeping the temperature at 80 +/-3 ℃ for 2 hours;
step A3, adding the designed amount of polyoxypropylene diamine and 2, 4, 6-tris (dimethylaminomethyl) phenol while stirring, and continuously dispersing for 30 minutes after the addition of the materials is finished; and cooling after meeting the requirement to obtain the modified amine curing agent.
The invention further provides a method for preparing the high-flash-point high-solid-content safe epoxy zinc-rich coating, which comprises the following steps:
step B1, sequentially putting the low molecular weight epoxy resin, the nonylphenol, the carbon dodecyl-tetradecyl glycidyl ether and the hydrogenated castor oil into a material mixing cylinder according to the designed parts by weight, and dispersing and stirring at a high speed of 1800 rpm for 30 minutes until the mixed solution is uniform and has no large particles;
step B2, sequentially adding the designed zinc powder into the mixed solution prepared in the step one, dispersing at a high speed at a rotation speed of 1800 rpm while feeding, until the fineness is 85 μm, continuously dispersing and heating to 62 ℃, stirring and keeping the temperature for 15 minutes;
step B3, adding benzyl alcohol in the designed amount into the mixed solution prepared in the step two, dispersing at a low speed of 800 revolutions per minute while adding materials, dispersing for 10 minutes, and cooling to normal temperature;
and step B4, adding the modified amine curing agent in the designed amount into the mixed solution prepared in the step three, dispersing for 10 minutes, and subpackaging to obtain the high-flash-point high-solid-content safe epoxy zinc-rich paint.
Example 4
The high-flash-point high-solid-content safe epoxy zinc-rich coating is prepared from the following raw materials in percentage by mass:
11 wt% of low molecular weight epoxy resin;
nonylphenol, 3 wt%;
2% by weight of a cyclododecyl to tetradecyl glycidyl ether;
hydrogenated castor oil, 1 wt%;
zinc powder, 75 wt%;
benzyl alcohol, 2 wt%;
6 wt% of modified amine curing agent.
Further, the modified amine curing agent is prepared from the following raw materials in percentage by mass:
benzyl alcohol, 15 wt%;
25 wt% of isophorone diamine;
low molecular weight epoxy resin, 10 wt%;
polyoxypropylene diamine, 48 wt%;
2, 4, 6-tris (dimethylaminomethyl) phenol, 2% by weight.
Further, the modified amine curing agent is prepared by the following steps:
step A1, sequentially adding benzyl alcohol and isophorone diamine in designed amount into a reaction kettle, and dispersing for 15 minutes;
step A2, adding the low molecular weight epoxy resin with the designed amount while stirring, and continuously dispersing for 30 minutes after the material is added; heating to 80 ℃, and keeping the temperature at 80 +/-3 ℃ for 2 hours;
step A3, adding the designed amount of polyoxypropylene diamine and 2, 4, 6-tris (dimethylaminomethyl) phenol while stirring, and continuously dispersing for 30 minutes after the addition of the materials is finished; and cooling after meeting the requirement to obtain the curing agent.
The invention provides a method for preparing the high-flash-point high-solid-content safe epoxy zinc-rich coating, which comprises the following steps:
step B1, sequentially putting the low molecular weight epoxy resin, the nonylphenol, the carbon dodecyl-tetradecyl glycidyl ether and the hydrogenated castor oil into a material mixing cylinder according to the designed parts by weight, and dispersing and stirring at a high speed of 1800 rpm for 28 minutes until the mixed solution is uniform and has no large particles;
step B2, sequentially adding zinc powder in designed amount into the mixed solution prepared in the step one, dispersing at a high speed at a rotation speed of 1800 rpm while feeding, until the fineness is 85 μm, continuously dispersing and heating to 65 ℃, stirring and keeping the temperature for 15 minutes;
step B3, adding benzyl alcohol in the designed amount into the mixed solution prepared in the step two, dispersing at a low speed of 800 revolutions per minute while feeding, dispersing for 9 minutes, and cooling to normal temperature;
and step B4, adding the modified amine curing agent in the designed amount into the mixed solution prepared in the step three, dispersing for 9 minutes, and subpackaging to obtain the high-flash-point high-solid-content safe epoxy zinc-rich paint.
When in use, the safe epoxy zinc-rich coating with high flash point and high solid content is dissolved in xylene: and (3) adjusting the viscosity of a coating 4 cup to 23 seconds in a mixed solvent of n-butyl alcohol 7:3, coating the mixed solvent on the surface of a metal substrate in a spraying mode, and curing at room temperature to obtain the anticorrosive coating with excellent anticorrosive performance. Table one is the properties of the product prepared for each sample.
TABLE I Properties of high flash point high solid content safety epoxy zinc-rich paint
Referring to table one, it can be concluded that: compared with the first, second, third and fourth embodiments, the prepared product has higher flash point and solid content, and completely meets the safety requirements of environmental protection and use, transportation and storage; in addition, the coatings exhibited corrosion resistance with good results.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, whereby the invention is not limited to the details given, without departing from the general concept defined by the claims and the scope of equivalents.
Claims (4)
1. The high-flash-point high-solid-content safe epoxy zinc-rich coating is characterized by being prepared from the following raw materials in percentage by mass:
10-20 wt% of low molecular weight epoxy resin;
nonylphenol, 2-5 wt%;
2-5 wt% of a dodecato tetradecyl glycidyl ether;
0.5-1 wt% of hydrogenated castor oil;
70-80 wt% of zinc powder;
2-5 wt% of benzyl alcohol;
5-10 wt% of modified amine curing agent.
2. The high-flash-point high-solid-content safety epoxy zinc-rich coating as claimed in claim 1, wherein the modified amine curing agent is prepared from the following raw materials in percentage by mass:
10-15 wt% of benzyl alcohol;
15-25 wt% of isophorone diamine;
5-12 wt% of low molecular weight epoxy resin;
45-55 wt% of polyoxypropylene diamine;
2, 4, 6-tris (dimethylaminomethyl) phenol, 2-5 wt%.
3. The high-flash-point high-solid-content safety epoxy zinc-rich coating as claimed in claim 1 or 2, wherein the modified amine curing agent is prepared by the following steps:
step A1, sequentially adding benzyl alcohol and isophorone diamine in designed amount into a reaction kettle, and dispersing for 10-15 minutes;
step A2, adding the low molecular weight epoxy resin with the designed amount while stirring, and continuously dispersing for 30 minutes after the material is added; heating to 80 ℃, and keeping the temperature at 80 +/-3 ℃ for 2 hours;
step A3, adding the designed amount of polyoxypropylene diamine and 2, 4, 6-tris (dimethylaminomethyl) phenol while stirring, and continuously dispersing for 30 minutes after the addition of the materials is finished; and cooling after meeting the requirement to obtain the modified amine curing agent.
4. The preparation method of the high-flash-point high-solid-content safe epoxy zinc-rich coating as claimed in any one of claims 1 to 3, characterized by comprising the following steps:
step B1, sequentially putting the designed parts of low molecular weight epoxy resin, nonylphenol, carbon dodecyl-tetradecyl glycidyl ether and hydrogenated castor oil into a material mixing cylinder, and dispersing and stirring at a high speed of 1800 rpm for 20-30 minutes until the mixed solution is uniform and has no large particles;
step B2, sequentially adding zinc powder in designed amount into the mixed solution prepared in the step one, dispersing at a high speed at a rotation speed of 1800 rpm while feeding until the fineness is not more than 90 μm, continuously dispersing and heating to 55-65 ℃, stirring and keeping the temperature for 15 minutes;
step B3, adding a designed amount of benzyl alcohol into the mixed solution prepared in the step two, performing low-speed dispersion at a rotating speed of 800 revolutions per minute while feeding, dispersing for 5-10 minutes, and cooling to normal temperature;
and step B4, adding the modified amine curing agent in the designed amount into the mixed solution prepared in the step three, dispersing for 5-10 minutes, and subpackaging to obtain the high-flash-point high-solid-content safe epoxy zinc-rich paint.
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| CN202010272469.6A CN111675928A (en) | 2020-04-09 | 2020-04-09 | High-flash-point high-solid-content safe epoxy zinc-rich coating and preparation method thereof |
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| CN202010272469.6A CN111675928A (en) | 2020-04-09 | 2020-04-09 | High-flash-point high-solid-content safe epoxy zinc-rich coating and preparation method thereof |
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| CN107868567A (en) * | 2017-11-08 | 2018-04-03 | 北京碧海舟腐蚀防护工业股份有限公司 | Epoxy dust primer, paint form a complete set of thing and application |
| CN110144160A (en) * | 2019-05-21 | 2019-08-20 | 江阴市大阪涂料有限公司 | A kind of high solid low surface treatment epoxy zinc rich primer and the preparation method and application thereof |
-
2020
- 2020-04-09 CN CN202010272469.6A patent/CN111675928A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005074272A (en) * | 2003-08-29 | 2005-03-24 | Kansai Paint Co Ltd | Coating method |
| CN103319981A (en) * | 2013-05-22 | 2013-09-25 | 厦门双瑞船舶涂料有限公司 | High-performance easy-construction two-component aqueous epoxy zinc-rich coating and preparation method thereof |
| CN103554438A (en) * | 2013-10-12 | 2014-02-05 | 瑞奇化工（松滋）有限公司 | Preparation method of modified epoxy hardener for reducing bleaching |
| CN105086759A (en) * | 2015-08-20 | 2015-11-25 | 成都拜迪新材料有限公司 | Preparation method of low-VOC (volatile organic compound) solvent-free epoxy zinc-rich primer |
| CN107868567A (en) * | 2017-11-08 | 2018-04-03 | 北京碧海舟腐蚀防护工业股份有限公司 | Epoxy dust primer, paint form a complete set of thing and application |
| CN110144160A (en) * | 2019-05-21 | 2019-08-20 | 江阴市大阪涂料有限公司 | A kind of high solid low surface treatment epoxy zinc rich primer and the preparation method and application thereof |
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Application publication date: 20200918 |
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