CN112552796A - Metal flake type bi-component heavy-duty anticorrosive paint and preparation method thereof - Google Patents
Metal flake type bi-component heavy-duty anticorrosive paint and preparation method thereof Download PDFInfo
- Publication number
- CN112552796A CN112552796A CN202011463536.9A CN202011463536A CN112552796A CN 112552796 A CN112552796 A CN 112552796A CN 202011463536 A CN202011463536 A CN 202011463536A CN 112552796 A CN112552796 A CN 112552796A
- Authority
- CN
- China
- Prior art keywords
- component
- agent
- coating
- aluminum
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
-
- 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
-
- 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
- C09D7/45—Anti-settling agents
-
- 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
-
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- C09D7/65—Additives macromolecular
-
- 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
- C08K2003/0812—Aluminium
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- 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 metal flake type bi-component heavy-duty anticorrosive paint and a preparation method thereof, wherein the metal flake type bi-component heavy-duty anticorrosive paint is prepared from a component A and a component B according to the weight ratio of 5:1, and the preparation method also comprises steps S1-S5. The ultrathin superfine aluminum or zinc-aluminum flake compound basalt flake is in a state of being coated by resin, is not only a pigment in a coating, but also an antirust filler in the coating, is uniformly distributed in the coating, and has a good overlapping interlocking-labyrinth effect due to the laminating effect, so that the path of a corrosive medium reaching a base body is prolonged, the permeability of the coating is remarkably reduced, and corrosive factors such as water, oxygen and the like in the environment are better shielded; the anticorrosive paint has the advantages of low cost, simple construction, low storage requirement and the like; can effectively promote the performance of the coating, particularly the corrosion resistance and the weather resistance, and can also improve the mechanical performance, the heat resistance and the weather resistance of the coating.
Description
Technical Field
The invention belongs to the technical field of heavy-duty anticorrosive coatings, and particularly relates to an inorganic flake type bi-component heavy-duty anticorrosive coating with a mechanical shielding and electrochemical protection composite protection effect and a preparation method thereof.
Background
In order to deal with the rapid metal corrosion in the highly corrosive atmosphere environment with high salt and high humidity in coastal areas in south, the heavy-duty anticorrosive coating is widely applied due to the characteristics of low cost, good effect, convenient construction and the like. At present, the relatively mature scale-type heavy-duty anticorrosive coating takes glass scales as an antirust filler, and although the coating is applied on a large scale, the brittleness is high, the compatibility with organic polymer resin is poor, the heat conductivity coefficient of glass is low, and the improvement of the heat resistance of the coating is not facilitated. In addition, since glass is transparent, damage of ultraviolet rays to the coating layer cannot be effectively reduced, and thus it is also difficult to improve the weather resistance of the coating layer. The stainless steel flake coating is a metal flake type medium anticorrosive coating developed after a glass flake coating. However, the production process of the stainless steel flake is high in requirement, so that the cost of the coating is high. And the glass flake and the stainless steel flake generally do not react with a corrosive medium and only block the permeation of the corrosive medium, but the corrosive medium still permeates to the surface of the matrix due to the local damage or aging of the coating in the using process, so that the coating with only the mechanical barrier effect cannot play an effective protection role on the matrix again. The zinc-aluminum flake has insufficient hardness and wear resistance, and has certain influence on the long-term effect of the coating.
Meanwhile, Benner vortex is generated due to the interference of internal force or external force in the dispersion process of the flaky filler and the volatilization of the solvent in the curing and film-forming process of the coating, so that the aluminum scale method in the wet film is moved, deflected or disorderly arranged, and the performance of the coating is influenced. Therefore, it is an objective need to develop a heavy-duty anticorrosive coating which can provide better protection effect for the substrate, and improve the performance of the selected pigment and filler in the coating preparation process, so we need to provide a metal flake type two-component heavy-duty anticorrosive coating and a preparation method thereof.
Disclosure of Invention
The invention aims to solve the defects in the prior art and overcome the defects of the existing inorganic scale type heavy anti-corrosion coating, and the aluminum scale, the zinc-aluminum alloy scale or the non-floating aluminum paste are compounded with the basalt scale to form a composite protection system to prepare the heavy anti-corrosion coating with double functions of mechanical shielding and electrochemical protection, and the action effect of the filler is improved to a certain extent, so that the heavy anti-corrosion coating with double functions suitable for strong corrosion environments such as high salt, high humidity, high temperature and the like is prepared.
In order to achieve the purpose, the invention provides the following technical scheme: a metal flake type double-component heavy-duty anticorrosive paint is prepared from a component A and a component B in a proportion of 5:1, mixing the components in a weight ratio;
the component A comprises the following components in percentage by weight:
20-60 parts of one of aluminum flakes, zinc-aluminum alloy flakes or non-floating aluminum paste with the solid content of more than 60%, 16-40 parts of epoxy resin, 16-40 parts of solvent, 10-20 parts of basalt flakes, 1-3 parts of wax positioning and arranging agent, 0.5-1.0 part of dispersing agent, 0.5-1.0 part of defoaming agent, 0.5-1.0 part of flatting agent and 0.5-1.0 part of film-forming assistant;
the component B comprises the following components in percentage by weight:
20-30 parts of curing agent, 20-30 parts of bentonite and 40-60 parts of solvent.
Preferably, the epoxy resin is one of E20, E35, E40, E42, E44 and E51.
Preferably, the curing agent is one of polyamide 300, polyamide 650 and polyamide 651.
Preferably, the waxy alignment agent is one of XH-09, DC-3, XH-19 and MONENG-1083.
Preferably, the solvent is one of xylene, n-butanol, methyl isobutyl ketone, ethyl acetate and butyl acetate or any mixture thereof.
Preferably, the dispersant is a solvent-based dispersant or a wetting dispersant, the defoamer is one of an organic silicon defoamer, an inorganic silicon defoamer or a non-organic silicon defoamer, and the leveling agent is ethylene glycol monobutyl ether or polydimethylsiloxane.
Preferably, the film-forming assistant is one of butyl benzyl alcohol acetate, ethylene glycol butyl ether glycolate, ethylene glycol phenyl ether, propylene glycol propyl ether and diethyl dibasic acid.
The invention also provides a preparation method of the metal flake type bi-component heavy-duty anticorrosive coating, which comprises the following steps:
s1, firstly, 1% of silane coupling agent mixed solution is used for the basalt flakes, the water bath is carried out at constant temperature of 40 ℃ for more than 24 hours, and then the basalt flakes are cleaned and dried by absolute ethyl alcohol;
s2, if aluminum flakes or zinc-aluminum alloy flakes and basalt flakes are compounded to be used as the anti-rust pigment filler, firstly, mixing the aluminum flakes or the zinc-aluminum alloy flakes and the basalt flakes in a weight ratio of 1: 1, adding a solvent for pre-dispersion, soaking for 12-24 hours at normal temperature and normal pressure, and slowly stirring uniformly; if non-floating type aluminum paste with the solid content of more than 60% is adopted, the aluminum paste is prepared by mixing the following components in parts by weight: 1, adding a solvent for dilution, and slowly stirring until the solution is uniform;
s3, under the condition of normal temperature and normal pressure drying, uniformly mixing the prepared aluminum flake or zinc-aluminum flake slurry or diluted non-floating aluminum paste with epoxy resin, a positioning arrangement agent, a dispersing agent, a defoaming agent, a leveling agent and a film forming aid according to the mass percentage range of the components A, adding a solvent in a corresponding proportion, and uniformly stirring to obtain a component A solution;
s4, uniformly mixing the curing agent, bentonite and the solvent according to the mass percentage range of the component B, and uniformly stirring to obtain a component B solution;
and S5, mixing the component A and the component B according to the weight ratio of A to B being 5 to 1, and stirring and uniformly mixing to obtain the required finished product coating.
The invention has the technical effects and advantages that: the invention provides a metal flake type bi-component heavy-duty anticorrosive coating and a preparation method thereof;
1. the ultrathin superfine aluminum or zinc-aluminum flake compound basalt flake is in a state of being coated by resin, is not only a pigment in a coating, but also an antirust filler in the coating, is uniformly distributed in the coating, and has a good overlapping interlocking-labyrinth effect due to the laminating effect, so that the path of a corrosive medium reaching a base body is prolonged, the permeability of the coating is remarkably reduced, and corrosive factors such as water, oxygen and the like in the environment are better shielded.
2. In addition, the aluminum and zinc-aluminum alloy flakes in the coating not only have the mechanical barrier function of glass flakes, but also can be combined with certain corrosive media (such as H) which permeate into the coating to a certain extent due to the chemical activity of the aluminum and zinc-aluminum alloy flakes2O、O2、CO3 2-、SO3 2-Etc.) to gradually consume it so that it cannot contact the surface of the substrate, and can play the role of sacrificial anode to protect the cathode for the substrate. Therefore, the prepared coating has slow, continuous and controllable cathodic protection effect, can form electrochemical protection on the metal surface for a long time, further endows the coating with double effects of mechanical barrier and electrochemical protection, is a novel heavy-duty anticorrosive coating, and has the advantages of low cost, simple construction, low storage requirement and the like;
3. because the aluminum and the zinc-aluminum alloy have good ductility, the scale specification is easy to control, and higher specific surface area of the scale can be conveniently obtained. Meanwhile, the aluminum and zinc-aluminum alloy flakes have good heat resistance, high heat conductivity coefficient and high surface light reflectivity, and the basalt flakes play a role in labyrinth effect, physical property improvement and the like, and can effectively promote the coating performance, particularly corrosion resistance and weather resistance, so that the mechanical property, heat resistance, weather resistance and the like of the coating can be improved;
4. the wax directional arrangement agent has a special hydrogen bond structure, can enable a system to be connected into a three-dimensional network structure, and the special three-dimensional network thixotropic structure not only improves the thixotropic index of the system and enables the coating to have the characteristics of shearing and thickening reduction, but also has a good anti-settling effect on aluminum flakes. The three-dimensional net structure also plays a great promoting role in fixing the aluminum scale, and can effectively limit the movement and deflection of the aluminum scale during the curing of the wet film.
Drawings
FIG. 1 is a process flow diagram of the metal flake type two-component heavy-duty anticorrosive coating of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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.
Referring to fig. 1, the present invention provides a technical solution:
a metal flake type double-component heavy-duty anticorrosive paint is prepared from a component A and a component B according to the weight ratio of 5:1, mixing the components in a weight ratio;
the component A comprises the following components in percentage by weight:
20-60 parts of one of aluminum flakes, zinc-aluminum alloy flakes or non-floating aluminum paste with the solid content of more than 60%, 16-40 parts of epoxy resin, 16-40 parts of solvent, 10-20 parts of basalt flakes, 1-3 parts of wax positioning and arranging agent, 0.5-1.0 part of dispersing agent, 0.5-1.0 part of defoaming agent, 0.5-1.0 part of flatting agent and 0.5-1.0 part of film-forming assistant;
the component B comprises the following components in percentage by weight:
20-30 parts of curing agent, 20-30 parts of bentonite and 40-60 parts of solvent.
The epoxy resin is one of E20, E35, E40, E42, E44 and E51.
The curing agent is one of polyamide 300, polyamide 650 and polyamide 651.
The waxy alignment agent is one of XH-09, DC-3, XH-19 and MONENG-1083; the solvent is one or any mixture of dimethylbenzene, n-butyl alcohol, methyl isobutyl ketone, ethyl acetate and butyl acetate; the dispersant is solvent dispersant or wetting dispersant, the defoamer is one of organic silicon defoamer, inorganic silicon defoamer or non-organic silicon defoamer, and the leveling agent is ethylene glycol monobutyl ether or polydimethylsiloxane; the film-forming assistant is one of butyl benzyl alcohol acetate, ethylene glycol butyl ether alcohol acid ester, ethylene glycol phenyl ether, propylene glycol propyl ether and dibasic acid diethyl ester.
The invention also provides a preparation method of the metal flake type bi-component heavy-duty anticorrosive paint, which comprises the following steps:
s1, firstly, 1% of silane coupling agent mixed solution is used for the basalt flakes, the water bath is carried out at constant temperature of 40 ℃ for more than 24 hours, and then the basalt flakes are cleaned and dried by absolute ethyl alcohol;
s2, if aluminum flakes or zinc-aluminum alloy flakes and basalt flakes are compounded to be used as the anti-rust pigment filler, firstly, mixing the aluminum flakes or the zinc-aluminum alloy flakes and the basalt flakes in a weight ratio of 1: 1, adding a solvent for pre-dispersion, soaking for 12-24 hours at normal temperature and normal pressure, and slowly stirring uniformly; if non-floating type aluminum paste with the solid content of more than 60% is adopted, the aluminum paste is prepared by mixing the following components in parts by weight: 1, adding a solvent for dilution, and slowly stirring until the solution is uniform;
s3, under the condition of normal temperature and normal pressure drying, uniformly mixing the prepared aluminum flake or zinc-aluminum flake slurry or diluted non-floating aluminum paste with epoxy resin, a positioning arrangement agent, a dispersing agent, a defoaming agent, a leveling agent and a film forming aid according to the mass percentage range of the components A, adding a solvent in a corresponding proportion, and uniformly stirring to obtain a component A solution;
s4, uniformly mixing the curing agent, bentonite and the solvent according to the mass percentage range of the component B, and uniformly stirring to obtain a component B solution;
and S5, mixing the component A and the component B according to the weight ratio of A to B being 5 to 1, and stirring and uniformly mixing to obtain the required finished product coating.
Example 1
Treating 10 parts of basalt by adopting a coupling agent mixed solution, cleaning, drying, and adding into a stirring tank. Taking 30 parts of aluminum flake dry powder, adding 30 parts of dimethylbenzene serving as a solvent, soaking for 12 hours at normal temperature and normal pressure, slowly stirring uniformly, then adding 30 parts of E20 type epoxy resin and 7 parts of ethyl acetate serving as the solvent, mixing and stirring uniformly, then adding 0.5 part of solvent type dispersant, 1 part of wax directional arrangement agent, 0.5 part of organic silicon defoamer, 1 part of ethylene glycol monobutyl ether and 1 part of butyl benzyl alcohol acetate serving as a film forming auxiliary agent, and stirring uniformly again to obtain the component A of the metal flake type double-component heavy anti-corrosion coating.
And (2) adding 20 parts of a xylene solvent into 10 parts of polyamide 300 and 10 parts of bentonite, and uniformly mixing and stirring to obtain the component B of the metal flake type bi-component heavy-duty anticorrosive coating. And mixing the component A and the component B together according to the weight ratio of A to B being 5:1 to obtain the metal flake type bi-component heavy anti-corrosion coating taking the aluminum flakes as fillers.
Example 2
Different from the embodiment 1, 10 parts of basalt is treated by adopting a coupling agent mixed solution, cleaned, dried and added into a stirring tank. 30 parts of aluminum flake dry powder is taken, added with 30 parts of ethyl acetate solvent, soaked for 18 hours at normal temperature and normal pressure, slowly and uniformly stirred, then added with 20 parts of E42 type epoxy resin and 17 parts of n-butyl alcohol solvent, uniformly mixed and stirred, then added with 0.8 part of solvent type dispersant, 0.5 part of wax directional arrangement agent, 0.7 part of inorganic silicon defoamer, 0.7 part of ethylene glycol monobutyl ether and 0.8 part of film forming auxiliary agent ethylene glycol phenyl ether, and uniformly stirred again to obtain the component A of the metal flake type bi-component heavy anti-corrosive paint.
And (3) adding 10 parts of polyamide 651 and 11 parts of bentonite into 15 parts of xylene solvent, and uniformly mixing and stirring to obtain the component B of the metal flake type bi-component heavy-duty anticorrosive coating. And mixing the component A and the component B together according to the weight ratio of A to B being 5:1 to obtain the metal flake type bi-component heavy anti-corrosion coating taking the aluminum flakes as fillers.
Example 3
Treating 10 parts of basalt by adopting a coupling agent mixed solution, cleaning, drying, and adding into a stirring tank. Taking 40 parts of zinc-aluminum alloy flake dry powder, adding 40 parts of n-butyl alcohol serving as a solvent, soaking for 24 hours at normal temperature and normal pressure, slowly and uniformly stirring, then adding 16 parts of E40 type epoxy resin and 2 parts of butyl acetate serving as the solvent, uniformly mixing and stirring, then adding 0.5 part of wetting dispersant, 1.2 parts of wax directional arrangement agent, 0.5 part of inorganic silicon defoamer, 0.5 part of polydimethylsiloxane and 0.5 part of ethylene glycol phenyl ether serving as a film forming auxiliary agent, and uniformly stirring again to obtain the component A of the metal flake type bi-component heavy anti-corrosion coating.
And (3) adding 10 parts of polyamide 650 and 10 parts of bentonite into 14 parts of ethyl acetate solvent, and uniformly mixing and stirring to obtain the component B of the metal flake type bi-component heavy-duty anticorrosive coating. And mixing the component A and the component B together according to the weight ratio of A to B being 5:1 to obtain the metal flake type double-component heavy-duty anticorrosive coating taking the zinc-aluminum flakes as fillers.
Example 4
Treating 10 parts of basalt by adopting a coupling agent mixed solution, cleaning, drying, and adding into a stirring tank. Taking 60 parts of non-floating aluminum paste (the solid content is 60%), adding 36 parts of n-butyl alcohol serving as a solvent, soaking for 20 hours at normal temperature and normal pressure, slowly stirring uniformly, then adding 18 parts of E51 type epoxy resin and 7 parts of xylene serving as the solvent, mixing and stirring uniformly, then adding 1 part of wetting dispersant, 2 parts of wax directional arrangement agent, 1 part of non-organic silicon defoamer, 0.5 part of polydimethylsiloxane and 0.5 part of propylene glycol propyl ether serving as a film forming aid, and stirring uniformly again to obtain the component A of the metal flake type double-component heavy-duty anticorrosive coating.
And (3) adding 18 parts of methyl isobutyl ketone solvent into 10 parts of polyamide 651 and 10 parts of bentonite, and uniformly mixing and stirring to obtain the component B of the metal flake type bi-component heavy-duty anticorrosive coating. And mixing the component A and the component B together according to the weight ratio of A to B being 5 to 1 to obtain the metal flake type bi-component heavy-duty anticorrosive coating taking the non-floating aluminum paste as the filler.
The specific use effects of the formulations of the four groups of examples of the invention are as follows:
the above embodiments are all preferred proportioning schemes of the present invention, and do not impose any restriction on other embodiments of the present invention in any form, and therefore do not represent all feasible schemes. Any non-innovative modifications, imitation or variations of the above-described embodiments, within the scope of the invention, do not exceed the technical scope of the invention, as described above.
In conclusion, the ultrathin ultrafine aluminum or zinc-aluminum scale compound basalt scales are in a resin coated state, are not only pigments in the coating, but also antirust fillers in the coating, are uniformly distributed in the coating, and the laminating effect can form a good 'lap interlocking-labyrinth effect', so that the path of a corrosive medium reaching a base body is prolonged, the permeability of the coating is remarkably reduced, and the corrosion factors such as water, oxygen and the like in the environment are better shielded.
In addition, the aluminum and zinc-aluminum alloy flakes in the coating not only have the mechanical barrier function of glass flakes, but also can be combined with certain corrosive media (such as H) which permeate into the coating to a certain extent due to the chemical activity of the aluminum and zinc-aluminum alloy flakes2O、O2、CO3 2-、SO3 2-Etc.) to gradually consume it so that it cannot contact the surface of the substrate, and can play the role of sacrificial anode to protect the cathode for the substrate. Therefore, the prepared coating has slow, continuous and controllable cathodic protection effect, can form electrochemical protection on the metal surface for a long time, further endows the coating with double effects of mechanical barrier and electrochemical protection, is a novel heavy-duty anticorrosive coating, and has the advantages of low cost, simple construction, low storage requirement and the like;
because the aluminum and the zinc-aluminum alloy have good ductility, the scale specification is easy to control, and higher specific surface area of the scale can be conveniently obtained. Meanwhile, the aluminum and zinc-aluminum alloy flakes have good heat resistance, high heat conductivity coefficient and high surface light reflectivity, and the basalt flakes play a role in labyrinth effect, physical property improvement and the like, and can effectively promote the coating performance, particularly corrosion resistance and weather resistance, so that the mechanical property, heat resistance, weather resistance and the like of the coating can be improved;
the wax directional arrangement agent has a special hydrogen bond structure, can enable a system to be connected into a three-dimensional network structure, and the special three-dimensional network thixotropic structure not only improves the thixotropic index of the system and enables the coating to have the characteristics of shearing and thickening reduction, but also has a good anti-settling effect on aluminum flakes. The three-dimensional net structure also plays a great promoting role in fixing the aluminum scale, and can effectively limit the movement and deflection of the aluminum scale during the curing of the wet film.
Finally, it should be noted that: 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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. A metal flake type bi-component heavy-duty anticorrosive paint is characterized in that: the metal flake type bi-component heavy-duty anticorrosive coating is prepared from a component A and a component B in a proportion of 5:1, mixing the components in a weight ratio;
the component A comprises the following components in percentage by weight:
20-60 parts of one of aluminum flakes, zinc-aluminum alloy flakes or non-floating aluminum paste with the solid content of more than 60%, 16-40 parts of epoxy resin, 16-40 parts of solvent, 10-20 parts of basalt flakes, 1-3 parts of wax positioning and arranging agent, 0.5-1.0 part of dispersing agent, 0.5-1.0 part of defoaming agent, 0.5-1.0 part of flatting agent and 0.5-1.0 part of film-forming assistant;
the component B comprises the following components in percentage by weight:
20-30 parts of curing agent, 20-30 parts of bentonite and 40-60 parts of solvent.
2. The two-component heavy-duty anticorrosive coating of metal flake type according to claim 1, characterized in that: the epoxy resin is one of E20, E35, E40, E42, E44 and E51.
3. The two-component heavy-duty anticorrosive coating of metal flake type according to claim 1, characterized in that: the curing agent is one of polyamide 300, polyamide 650 and polyamide 651.
4. The two-component heavy-duty anticorrosive coating of metal flake type according to claim 1, characterized in that: the waxy alignment agent is one of XH-09, DC-3, XH-19 and MONENG-1083.
5. The two-component heavy-duty anticorrosive coating of metal flake type according to claim 1, characterized in that: the solvent is one or any mixture of dimethylbenzene, n-butyl alcohol, methyl isobutyl ketone, ethyl acetate and butyl acetate.
6. The two-component heavy-duty anticorrosive coating of metal flake type according to claim 1, characterized in that: the dispersing agent is a solvent type dispersing agent or a wetting dispersing agent, the defoaming agent is one of an organic silicon defoaming agent, an inorganic silicon defoaming agent or a non-organic silicon defoaming agent, and the leveling agent is ethylene glycol monobutyl ether or polydimethylsiloxane.
7. The two-component heavy-duty anticorrosive coating of metal flake type according to claim 1, characterized in that: the film-forming assistant is one of butyl benzyl alcohol acetate, ethylene glycol butyl ether glycolate, ethylene glycol phenyl ether, propylene glycol propyl ether and dibasic acid diethyl ester.
8. A method for preparing the metal flake type two-component heavy-duty anticorrosive coating according to claim 1, characterized in that: the method comprises the following steps:
s1, firstly, 1% of silane coupling agent mixed solution is used for the basalt flakes, the water bath is carried out at constant temperature of 40 ℃ for more than 24 hours, and then the basalt flakes are cleaned and dried by absolute ethyl alcohol;
s2, if aluminum flakes or zinc-aluminum alloy flakes and basalt flakes are compounded to be used as the anti-rust pigment filler, firstly, mixing the aluminum flakes or the zinc-aluminum alloy flakes and the basalt flakes in a weight ratio of 1: 1, adding a solvent for pre-dispersion, soaking for 12-24 hours at normal temperature and normal pressure, and slowly stirring uniformly; if non-floating type aluminum paste with the solid content of more than 60% is adopted, the aluminum paste is prepared by mixing the following components in parts by weight: 1, adding a solvent for dilution, and slowly stirring until the solution is uniform;
s3, under the condition of normal temperature and normal pressure drying, uniformly mixing the prepared aluminum flake or zinc-aluminum flake slurry or diluted non-floating aluminum paste with epoxy resin, a positioning arrangement agent, a dispersing agent, a defoaming agent, a leveling agent and a film forming aid according to the mass percentage range of the components A, adding a solvent in a corresponding proportion, and uniformly stirring to obtain a component A solution;
s4, uniformly mixing the curing agent, bentonite and the solvent according to the mass percentage range of the component B, and uniformly stirring to obtain a component B solution;
and S5, mixing the component A and the component B according to the weight ratio of A to B being 5 to 1, and stirring and uniformly mixing to obtain the required finished product coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011463536.9A CN112552796A (en) | 2020-12-11 | 2020-12-11 | Metal flake type bi-component heavy-duty anticorrosive paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011463536.9A CN112552796A (en) | 2020-12-11 | 2020-12-11 | Metal flake type bi-component heavy-duty anticorrosive paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112552796A true CN112552796A (en) | 2021-03-26 |
Family
ID=75062875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011463536.9A Pending CN112552796A (en) | 2020-12-11 | 2020-12-11 | Metal flake type bi-component heavy-duty anticorrosive paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112552796A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114921154A (en) * | 2022-07-21 | 2022-08-19 | 吉林华顾时代新型材料科技有限公司 | Heat-insulating anticorrosive paint for brake disc and preparation method |
| CN115368803A (en) * | 2022-09-06 | 2022-11-22 | 安徽新大陆特种涂料有限责任公司 | Production method of temperature-resistant acid-resistant internal anti-corrosion coating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009031914A1 (en) * | 2007-09-04 | 2009-03-12 | Joint Stock Company 'bazaltoplastic' | Polymer composition for protective anticorrosion barrier-type coating |
| CN103351776A (en) * | 2013-05-16 | 2013-10-16 | 超越极限科技有限公司 | Metal flake type double-component heavy anticorrosion coating material and preparation method thereof |
| CN107384118A (en) * | 2017-06-15 | 2017-11-24 | 东南大学 | Modified basalt scale solvent-free epoxy resin anticorrosive paint and preparation method thereof |
| CN111647334A (en) * | 2020-04-14 | 2020-09-11 | 中国南方电网有限责任公司超高压输电公司柳州局 | Laminated scaly heavy-duty anticorrosive paint and preparation method thereof |
-
2020
- 2020-12-11 CN CN202011463536.9A patent/CN112552796A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009031914A1 (en) * | 2007-09-04 | 2009-03-12 | Joint Stock Company 'bazaltoplastic' | Polymer composition for protective anticorrosion barrier-type coating |
| CN103351776A (en) * | 2013-05-16 | 2013-10-16 | 超越极限科技有限公司 | Metal flake type double-component heavy anticorrosion coating material and preparation method thereof |
| CN107384118A (en) * | 2017-06-15 | 2017-11-24 | 东南大学 | Modified basalt scale solvent-free epoxy resin anticorrosive paint and preparation method thereof |
| CN111647334A (en) * | 2020-04-14 | 2020-09-11 | 中国南方电网有限责任公司超高压输电公司柳州局 | Laminated scaly heavy-duty anticorrosive paint and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张学敏等: "《涂料与涂装技术》", 31 January 2006, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114921154A (en) * | 2022-07-21 | 2022-08-19 | 吉林华顾时代新型材料科技有限公司 | Heat-insulating anticorrosive paint for brake disc and preparation method |
| CN115368803A (en) * | 2022-09-06 | 2022-11-22 | 安徽新大陆特种涂料有限责任公司 | Production method of temperature-resistant acid-resistant internal anti-corrosion coating |
| CN115368803B (en) * | 2022-09-06 | 2023-07-18 | 安徽新大陆特种涂料有限责任公司 | Production method of temperature-resistant acid-resistant inner anti-corrosion coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105086823B (en) | Room temperature silicone curing and anticorrosive coating | |
| CN110229601B (en) | Fluorocarbon coating and preparation method and coating method thereof | |
| CN103450719B (en) | A kind of long-acting aqueous, environmental protective steel construction protection coating | |
| CN104449141B (en) | Nano combined cold galvanizing coating and preparation method thereof | |
| CN107353773A (en) | A kind of water corrosion-resistant epoxy paint containing graphene and preparation method and application | |
| CN106479354B (en) | A kind of antifouling anticorrosive nano polysiloxane coating materials of primer-topcoat in one and preparation method thereof | |
| US5747561A (en) | Solid surface modifier | |
| CN103756377A (en) | Modified silicate waterborne zinc-rich anticorrosive coating employing organic montmorillonite as anti-settling dispersant | |
| CN107868567A (en) | Epoxy dust primer, paint form a complete set of thing and application | |
| CN112552796A (en) | Metal flake type bi-component heavy-duty anticorrosive paint and preparation method thereof | |
| CN111349923B (en) | Chromium-free environment-friendly passivation treating fluid for zinc layer surface and preparation method and application thereof | |
| CN112210293A (en) | Hydrophobic and oleophobic coating composition and preparation method thereof | |
| CN101195724A (en) | Surface insulation varnish paint for wind power generation and method for producing the same | |
| CN111961412B (en) | Polysilazane modified epoxy single-component anticorrosive coating slurry, coating and preparation method | |
| CN101368055A (en) | Silicone hydride and polyaniline hybridized polymer watersoluble metal heavy anticorrosion paint | |
| CN105176394A (en) | Organic and inorganic coating material based on sol-gel technique and preparation method thereof | |
| CN109535981A (en) | A kind of aqueous polyurethane static conductive coating and preparation method thereof | |
| CN109517515A (en) | A kind of aqueous polyurethane non-corrosive metal (NCM) priming paint and preparation method thereof | |
| CN103788726A (en) | Antistatic paint for steel structure surface and preparation method thereof | |
| CN109181480B (en) | Epoxy zinc-rich coating containing modified titanium dioxide, preparation method and application | |
| CN102816486A (en) | Rust-removing-free environment-friendly acrylic acid zinc phosphate organic composite ceramic anticorrosive paint and preparation method thereof | |
| EP0669963B1 (en) | Solid surface modifier | |
| CN103351776A (en) | Metal flake type double-component heavy anticorrosion coating material and preparation method thereof | |
| CN109321126B (en) | Solvent-free heavy-duty anticorrosive paint and preparation method thereof | |
| CN114149729B (en) | Anti-corrosion static-conductive solvent-free polyurea coating and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210326 |