CN112980228A - Preparation method of industrial antirust paint - Google Patents
Preparation method of industrial antirust paint Download PDFInfo
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- CN112980228A CN112980228A CN202110210486.1A CN202110210486A CN112980228A CN 112980228 A CN112980228 A CN 112980228A CN 202110210486 A CN202110210486 A CN 202110210486A CN 112980228 A CN112980228 A CN 112980228A
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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
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (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 discloses a preparation method of industrial antirust paint, which sequentially comprises the following steps: processing color paste; grinding color paste; filtering color paste; enameling of color paste; processing the viscosity; and (5) testing the antirust performance. The preparation method of the industrial antirust paint is simple to operate, deionized water, a dispersing agent, a wetting agent, a defoaming agent, a multifunctional auxiliary agent, iron oxide red powder, zinc phosphate, mica powder, bentonite and barium sulfate are sequentially mixed to obtain a pigment mixture, the pigment is ground to prevent large-particle substances from appearing in use and cause uneven film formation, the antirust paint obtained by the method has a good antirust function, zinc phosphate can generate a basic complex to enhance the water resistance and the adhesive force of a coating film, and a firm complex precipitate layer can be formed with iron elements to inhibit the formation and development of rust, and the mica powder can ensure that the toughness of the coating film can be enhanced when the iron sheets are coated, and the coating film is acid-base-resistant, corrosion-resistant and strong in adhesive force.
Description
Technical Field
The invention relates to the technical field of paint production, in particular to a preparation method of industrial antirust paint.
Background
In a humid environment, metal is easy to rust by contacting with oxygen, which actually causes oxidation-reduction reaction, but for metal, the property of the metal is changed, and new substances are generated on the surface, and people can use some rust prevention methods for protecting the metal from rusting, for example, a layer of paint is brushed on the surface of the metal, the brushed paint is rust prevention paint, and the main function of the rust prevention paint is to prevent rust.
At present, the currently used antirust paints are roughly divided into oil paint and water paint, the oil antirust paint makes the removal of greasy substances on the surface of materials difficult, toxic substances such as nitrite and chromate are contained in the oil antirust paint, the harm to operators is large, the use of the oil antirust paint is limited by the country, and the performance of the product is single, and the antirust requirement of magnetic alloy materials cannot be met.
The water-based metal antirust paint is prepared by compounding a metal strong chelating agent phytic acid ester serving as a main component and other water-based auxiliary agents. The phytate is a natural non-toxic organic chemical product extracted from grain crops, and when the phytate is used as a magnetic material antirust agent, the phytate can be quickly chelated with metal on the surface to form a layer of compact monomolecular complex protective film, so that the corrosion of the metal can be effectively inhibited. The surface of the material treated by the product keeps original color, and can enter the next working procedures of coating and the like without washing
The common anti-rust paint is divided into red lead anti-rust paint, iron oxide red phenolic aldehyde anti-rust paint and the like, the red lead anti-rust paint has poor adhesion capability, is difficult to form a film and is slow to dry,
therefore, we have proposed a method for preparing an industrial rust inhibitive paint in order to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a preparation method of industrial antirust paint, which aims to solve the problems of poor adhesion capability, difficult film formation and slow drying of red lead antirust paint in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the preparation method of the industrial antirust paint comprises the following mixed raw materials: 5-14 parts of deionized water, 0.3-1.2 parts of dispersing agent, 0.1-0.9 part of wetting agent, 0.1-0.9 part of defoaming agent, 0.2-1.1 part of multifunctional assistant, 8-17 parts of iron oxide red powder, 10-19 parts of aluminum tripolyphosphate, 10-17 parts of zinc phosphate, 3-12 parts of mica powder, 3-12 parts of bentonite and 6-15 parts of barium sulfate, and sequentially comprises the following steps:
(1) processing color paste: in the mixing step of the mixed liquid, the deionized water and the dispersing agent are added into the stirrer to be stirred, then the wetting agent, the defoaming agent, the iron oxide red powder, the aluminum tripolyphosphate, the zinc phosphate, the mica powder, the bentonite and the barium sulfate are sequentially added into the stirrer to be stirred, and the color paste is obtained after the uniform stirring.
(2) Grinding color paste: and (2) putting the color paste obtained in the step (1) into a horizontal grinding machine for grinding.
(3) Filtering color paste: and (3) filtering the color paste obtained in the step (2) in a filter to remove the unground and levigated pigment and impurities, paint coats and the like mixed in the production process of the pigment.
(4) Enameling of color paste: and (3) pouring the emulsion into a stirrer, pouring the slurry obtained in the step (2), and then adding the film-forming aid, the defoaming agent, the thickening agent, the flatting agent, the bactericide and the flash rust inhibitor while continuously stirring, and uniformly stirring.
(5) And (4) treating the viscosity, then adjusting the viscosity of the slurry by the residual deionized water, and uniformly stirring.
(6) And (3) testing the antirust performance: and uniformly coating the obtained antirust paint on two iron sheets with the same area and thickness, keeping the thickness of the paint consistent, placing the iron sheets in a greenhouse, and recording the time for the iron sheets to rust.
Preferably, in the step (1), the rotating speed is 500-900 rpm while stirring, the time is controlled to be 20-35 minutes, then the pigments and fillers are sequentially added, the high-speed dispersion rotating speed is 1200-1400 rpm, and the time is controlled to be 30-45 minutes.
Preferably, the slurry in the step (2) is ground to below 30 microns.
Preferably, the rotation speed in the step (4) is about 500-900 rpm when stirring, and the time is controlled to be 30-40 minutes for fully mixing.
Preferably, 2-4 parts of ethanol reagent is further added in the step (4).
Preferably, the step (4) is followed by a sealing treatment.
Preferably, the relative humidity of the air in the greenhouse is 70-95%, and the temperature is 30-50 ℃.
Compared with the prior art, the invention has the beneficial effects that: the preparation method of the industrial antirust paint is simple to operate, deionized water, a dispersing agent, a wetting agent, a defoaming agent, a multifunctional auxiliary agent, iron oxide red powder, zinc phosphate, mica powder, bentonite and barium sulfate are sequentially mixed to obtain a pigment mixture, the pigment is ground to prevent large-particle substances from being generated in use and cause uneven film formation, the antirust paint obtained by the method has good antirust function, film breaking prevention function and salt fog resistance function, bubbles in slurry are reduced, the zinc phosphate can generate a basic complex to enhance the water resistance and adhesive force of a coating film and can also form a firm complex precipitate layer with iron elements so as to inhibit the formation and development of iron rust, the mica powder can ensure that the toughness of the coating film can be enhanced when the iron sheets are coated, the coating film is acid-base-resistant and corrosion-resistant, the adhesive force is strong, and the aluminum tripolyphosphate is a novel black sea efficient antirust pigment, the dissociated tripolyphosphate ions can be cross-chelated with metal cations, so that the metal ions can be captured very strongly, the metal ions are effectively sealed to form inorganic macromolecules, the metal surface is passivated, the inorganic macromolecules have a chemical antirust effect, and then the inorganic macromolecules are slowly decomposed into compact orthophosphoric acid membranes, so that the contact between moisture, oxygen and the like and the metal surface is avoided, and the effect of isolating rust prevention is achieved.
(2) In the slurry mixing process, the rotating speed of the stirrer can enable all the pigments to be mixed more uniformly, so that the mixing time of the pigments is shortened, and in the metal spraying process, the ethanol reagent is evaporated to take away moisture, so that the red lead antirust agent is dried more quickly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a technical scheme that: the preparation method of the industrial antirust paint comprises the following mixed raw materials: 5 parts of deionized water, 0.3 part of dispersant, 0.1 part of wetting agent, 0.1 part of defoamer, 0.2 part of multifunctional additive, 8 parts of iron oxide red powder, 10 parts of aluminum tripolyphosphate, 10 parts of zinc phosphate, 3 parts of mica powder, 3 parts of bentonite and 6 parts of barium sulfate, and the method sequentially comprises the following steps.
(1) Processing color paste: in the mixing step of the mixed liquid, the deionized water and the dispersing agent are added into a stirrer to be stirred, then 0.1 part of wetting agent, 0.1 part of defoaming agent, 8 parts of iron oxide red powder, 10 parts of aluminum tripolyphosphate, 10 parts of zinc phosphate, 3 parts of mica powder, 3 parts of bentonite and 6 parts of barium sulfate are sequentially added into the stirrer to be stirred, and after uniform stirring, the color paste is obtained, the rotating speed is controlled at 500 rpm when the color paste is mixed, and the stirring time is controlled at 20 minutes.
(2) Grinding color paste: and (2) putting the color paste obtained in the step (1) into a horizontal grinder for grinding, and grinding the color paste to be less than 30 microns.
(3) Filtering color paste: and (3) filtering the color paste obtained in the step (2) in a filter to remove the unground and levigated pigment and impurities, paint coats and the like mixed in the production process of the pigment.
(4) Enameling of color paste: pouring the emulsion into a stirrer, pouring the slurry obtained in the step (2), continuously stirring while adding 0.3 part of film-forming aid, 0.1 part of defoaming agent, 0.3 part of thickening agent, 0.2 part of flatting agent, 0.3 part of bactericide and 0.2 part of flash rust inhibitor, uniformly stirring, controlling the rotating speed to be 500 rpm when mixing and stirring the mixture, and controlling the stirring time to be 30 minutes.
(5) And (4) treating the viscosity, then adjusting the viscosity of the slurry by the residual deionized water, and uniformly stirring.
(6) And (3) testing the antirust performance: and uniformly coating the obtained antirust paint on two iron sheets with the same area and thickness, keeping the thickness of the paint consistent, placing the iron sheets in a greenhouse with the relative air humidity of 70% and the temperature of 30 ℃, and recording the time for rusting the iron sheets.
Example two
The invention provides a technical scheme that: the preparation method of the industrial antirust paint comprises the following mixed raw materials: 8 parts of deionized water, 0.6 part of dispersant, 0.4 part of wetting agent, 0.4 part of defoamer, 0.5 part of multifunctional additive, 11 parts of iron oxide red powder, 13 parts of aluminum tripolyphosphate, 13 parts of zinc phosphate, 6 parts of mica powder, 6 parts of bentonite and 9 parts of barium sulfate, and the method sequentially comprises the following steps.
(1) Processing color paste: in the mixing step of the mixed liquid, 8 parts of deionized water and 0.6 part of dispersing agent are added into a stirrer to be stirred, then 0.4 part of wetting agent, 0.4 part of defoaming agent, 11 parts of iron oxide red powder, 13 parts of aluminum tripolyphosphate, 13 parts of zinc phosphate, 6 parts of mica powder, 6 parts of bentonite and 9 parts of barium sulfate are sequentially added into the stirrer to be stirred, and after uniform stirring, the color paste is obtained, the rotating speed is controlled at 600 rpm when the color paste is mixed, and the stirring time is controlled at 23 minutes.
(2) Grinding color paste: and (2) putting the color paste obtained in the step (1) into a horizontal grinder for grinding, and grinding the color paste to be less than 30 microns.
(3) Filtering color paste: and (3) filtering the color paste obtained in the step (2) in a filter to remove the unground and levigated pigment and impurities, paint coats and the like mixed in the production process of the pigment.
(4) Enameling of color paste: pouring the emulsion into a stirrer, pouring the slurry obtained in the step (2), continuously stirring while adding 0.5 part of film-forming aid, 0.3 part of defoaming agent, 0.5 part of thickening agent, 0.4 part of flatting agent, 0.5 part of bactericide and 0.4 part of flash rust inhibitor, uniformly stirring, controlling the rotating speed to be 600 revolutions per minute when mixing and stirring the mixture, and controlling the stirring time to be 33 minutes.
(5) And (4) treating the viscosity, then adjusting the viscosity of the slurry by the residual deionized water, and uniformly stirring.
(6) And (3) testing the antirust performance: and uniformly coating the obtained antirust paint on two iron sheets with the same area and thickness, keeping the thickness of the paint consistent, placing the iron sheets in a greenhouse with the air relative humidity of 76% and the temperature of 35 ℃, and recording the time for rusting the iron sheets.
EXAMPLE III
The invention provides a technical scheme that: the preparation method of the industrial antirust paint comprises the following mixed raw materials: 10 parts of deionized water, 0.8 part of dispersant, 0.5 part of wetting agent, 0.5 part of defoamer, 0.7 part of multifunctional additive, 13 parts of iron oxide red powder, 15 parts of aluminum tripolyphosphate, 15 parts of zinc phosphate, 8 parts of mica powder, 8 parts of bentonite and 11 parts of barium sulfate, and the method sequentially comprises the following steps.
(1) Processing color paste: in the mixing step of the mixed liquid, 10 parts of deionized water and 0.8 part of dispersing agent are added into a stirrer to be stirred, then 0.5 part of wetting agent, 0.5 part of defoaming agent, 13 parts of iron oxide red powder, 15 parts of aluminum tripolyphosphate, 15 parts of zinc phosphate, 8 parts of mica powder, 8 parts of bentonite and 11 parts of barium sulfate are sequentially added into the stirrer to be stirred, and after uniform stirring, the color paste is obtained, the rotating speed is controlled at 700 rpm when the color paste is mixed, and the stirring time is controlled at 25 minutes.
(2) Grinding color paste: and (2) putting the color paste obtained in the step (1) into a horizontal grinder for grinding, and grinding the color paste to be less than 30 microns.
(3) Filtering color paste: and (3) filtering the color paste obtained in the step (2) in a filter to remove the unground and levigated pigment and impurities, paint coats and the like mixed in the production process of the pigment.
(4) Enameling of color paste: and (3) pouring the emulsion into a stirrer, pouring the slurry obtained in the step (2), continuously stirring while adding 0.7 part of film-forming aid, 0.5 part of defoaming agent, 0.7 part of thickening agent, 0.6 part of flatting agent, 0.7 part of bactericide and 0.6 part of flash rust inhibitor, uniformly stirring, controlling the rotating speed to be 700 rpm when mixing and stirring, and controlling the stirring time to be 35 minutes.
(5) And (4) treating the viscosity, then adjusting the viscosity of the slurry by the residual deionized water, and uniformly stirring.
(6) And (3) testing the antirust performance: and uniformly coating the obtained antirust paint on two iron sheets with the same area and thickness, keeping the thickness of the paint consistent, placing the iron sheets in a greenhouse with the relative air humidity of 84% and the temperature of 40 ℃, and recording the time for rusting the iron sheets.
Example four
The invention provides a technical scheme that: the preparation method of the industrial antirust paint comprises the following mixed raw materials: 12 parts of deionized water, 1 part of dispersant, 0.7 part of wetting agent, 0.7 part of defoamer, 0.9 part of multifunctional additive, 15 parts of iron oxide red powder, 17 parts of aluminum tripolyphosphate, 17 parts of zinc phosphate, 10 parts of mica powder, 10 parts of bentonite and 13 parts of barium sulfate, and the method sequentially comprises the following steps.
(1) Processing color paste: in the mixing step of the mixed liquid, 10 parts of deionized water and 1 part of dispersing agent are added into a stirrer to be stirred, then 0.7 part of wetting agent, 0.7 part of defoaming agent, 15 parts of iron oxide red powder, 17 parts of aluminum tripolyphosphate, 17 parts of zinc phosphate, 10 parts of mica powder, 10 parts of bentonite and 13 parts of barium sulfate are sequentially added into the stirrer to be stirred, and after uniform stirring, the color paste is obtained, the rotating speed is controlled to be 800 rpm when the color paste is mixed, and the stirring time is controlled to be 30 minutes.
(2) Grinding color paste: and (2) putting the color paste obtained in the step (1) into a horizontal grinder for grinding, and grinding the color paste to be less than 30 microns.
(3) Filtering color paste: and (3) filtering the color paste obtained in the step (2) in a filter to remove the unground and levigated pigment and impurities, paint coats and the like mixed in the production process of the pigment.
(4) Enameling of color paste: pouring the emulsion into a stirrer, pouring the slurry obtained in the step (2), continuously stirring while adding 0.9 part of film-forming aid, 0.7 part of defoaming agent, 0.9 part of thickening agent, 0.8 part of flatting agent, 0.9 part of bactericide and 0.8 part of flash rust inhibitor, uniformly stirring, controlling the rotating speed to be 800 rpm when mixing and stirring, and controlling the stirring time to be 37 minutes.
(5) And (4) treating the viscosity, then adjusting the viscosity of the slurry by the residual deionized water, and uniformly stirring.
(6) And (3) testing the antirust performance: and uniformly coating the obtained antirust paint on two iron sheets with the same area and thickness, keeping the thickness of the paint consistent, placing the iron sheets in a greenhouse with the relative air humidity of 90% and the temperature of 45 ℃, and recording the time for rusting the iron sheets.
EXAMPLE five
The invention provides a technical scheme that: the preparation method of the industrial antirust paint comprises the following mixed raw materials: 14 parts of deionized water, 1.2 parts of dispersing agent, 0.9 part of wetting agent, 0.9 part of defoaming agent, 1.1 parts of multifunctional additive, 17 parts of iron oxide red powder, 19 parts of aluminum tripolyphosphate, 19 parts of zinc phosphate, 12 parts of mica powder, 12 parts of bentonite and 15 parts of barium sulfate, and the method sequentially comprises the following steps.
(1) Processing color paste: in the mixing step of the mixed liquid, 10 parts of deionized water and 0.8 part of dispersing agent are added into a stirrer to be stirred, then 0.9 part of wetting agent, 0.9 part of defoaming agent, 17 parts of iron oxide red powder, 19 parts of aluminum tripolyphosphate, 19 parts of zinc phosphate, 12 parts of mica powder, 12 parts of bentonite and 15 parts of barium sulfate are sequentially added into the stirrer to be stirred, and after uniform stirring, the color paste is obtained, the rotating speed is controlled at 900 rpm when the color paste is mixed, and the stirring time is controlled at 35 minutes.
(2) Grinding color paste: and (2) putting the color paste obtained in the step (1) into a horizontal grinder for grinding, and grinding the color paste to be less than 30 microns.
(3) Filtering color paste: and (3) filtering the color paste obtained in the step (2) in a filter to remove the unground and levigated pigment and impurities, paint coats and the like mixed in the production process of the pigment.
(4) Enameling of color paste: pouring the emulsion into a stirrer, pouring the slurry obtained in the step (2), continuously stirring while adding 1.1 parts of film-forming additive, 0.9 part of defoaming agent, 1.1 parts of thickening agent, 1 part of flatting agent, 1.1 parts of bactericide and 1 part of flash rust inhibitor, uniformly stirring, controlling the rotating speed of the mixture to 900 revolutions per minute when the mixture is mixed and stirred, and controlling the stirring time to be 40 minutes.
(5) And (4) treating the viscosity, then adjusting the viscosity of the slurry by the residual deionized water, and uniformly stirring.
(6) And (3) testing the antirust performance: uniformly coating the obtained antirust paint on two iron sheets with the same area and thickness, keeping the thickness of the paint consistent, placing the iron sheets in a greenhouse with the relative air humidity of 95% and the temperature of 50 ℃, and recording the time for the iron sheets to rust
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The preparation method of the industrial antirust paint is characterized in that the mixed raw materials comprise the following components: 5-14 parts of deionized water, 0.3-1.2 parts of dispersing agent, 0.1-0.9 part of wetting agent, 0.1-0.9 part of defoaming agent, 0.2-1.1 part of multifunctional assistant, 8-17 parts of iron oxide red powder, 10-19 parts of aluminum tripolyphosphate, 10-17 parts of zinc phosphate, 3-12 parts of mica powder, 3-12 parts of bentonite and 6-15 parts of barium sulfate, and sequentially comprises the following steps:
(1) processing color paste: in the mixing step of the mixed liquid, the deionized water and the dispersing agent are added into the stirrer to be stirred, then the wetting agent, the defoaming agent, the iron oxide red powder, the aluminum tripolyphosphate, the zinc phosphate, the mica powder, the bentonite and the barium sulfate are sequentially added into the stirrer to be stirred, and after the uniform stirring, the color paste is obtained, so that the color uniformity of the obtained colored paint is ensured.
(2) Grinding color paste: and (2) putting the color paste obtained in the step (1) into a horizontal grinding machine for grinding.
(3) Filtering color paste: and (3) filtering the color paste obtained in the step (2) in a filter to remove the unground and levigated pigment and impurities, paint coats and the like mixed in the production process of the pigment.
(4) Enameling of color paste: and (3) pouring the emulsion into a stirrer, pouring the slurry obtained in the step (2), and then adding the film-forming aid, the defoaming agent, the thickening agent, the flatting agent, the bactericide and the flash rust inhibitor while continuously stirring, and uniformly stirring.
(5) And (4) treating the viscosity, then adjusting the viscosity of the slurry by the residual deionized water, and uniformly stirring.
(6) And (3) testing the antirust performance: and uniformly coating the obtained antirust paint on two iron sheets with the same area and thickness, keeping the thickness of the paint consistent, placing the iron sheets in a greenhouse, and recording the time for the iron sheets to rust.
2. The method for preparing industrial antirust paint according to claim 1, characterized in that: the rotating speed is 500-900 rpm when stirring is carried out in the step (1), the time is controlled to be 20-35 minutes, then the pigments and the fillers are sequentially added, the high-speed dispersion rotating speed is 1200-1400 rpm, and the time is controlled to be 30-45 minutes.
3. The method for preparing industrial antirust paint according to claim 1, characterized in that: and (3) grinding the slurry in the step (2) to be less than 30 microns.
4. The method for preparing industrial antirust paint according to claim 1, characterized in that: and (4) stirring at a rotating speed of about 500-900 rpm for 30-40 min, and fully mixing.
5. The method for preparing industrial antirust paint according to claim 1, characterized in that: and (5) adding 2-4 parts of an ethanol reagent.
6. The method for preparing industrial antirust paint according to claim 1, characterized in that: and (5) sealing the film after the step.
7. The method for preparing industrial antirust paint according to claim 1, characterized in that: the relative humidity of the air in the greenhouse is 70-95%, and the temperature is 30-50 ℃.
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| CN202110210486.1A CN112980228A (en) | 2021-02-25 | 2021-02-25 | Preparation method of industrial antirust paint |
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| CN202110210486.1A CN112980228A (en) | 2021-02-25 | 2021-02-25 | Preparation method of industrial antirust paint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116042015A (en) * | 2023-02-01 | 2023-05-02 | 武汉同发科技有限公司 | Industrial paint production process and color paste grinding equipment thereof |
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Application publication date: 20210618 |