CN110452568B - Anticorrosive paint, preparation method thereof and anticorrosive coating - Google Patents
Anticorrosive paint, preparation method thereof and anticorrosive coating Download PDFInfo
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- CN110452568B CN110452568B CN201910812356.8A CN201910812356A CN110452568B CN 110452568 B CN110452568 B CN 110452568B CN 201910812356 A CN201910812356 A CN 201910812356A CN 110452568 B CN110452568 B CN 110452568B
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
Abstract
The disclosure relates to the technical field of corrosion prevention, and in particular relates to an anticorrosive coating, a preparation method thereof and an anticorrosive coating. The anticorrosive paint comprises a base material system and a curing agent system, wherein the base material system comprises 0.1-1 part of fumed silica, 40-50 parts of resin, 5-15 parts of filler, 2-3 parts of auxiliary agent and 10-20 parts of solvent by mass; wherein the mass ratio of the base material system to the curing agent system is 100:11.25. an anticorrosive coating formed by the anticorrosive paint has excellent scratch resistance and excellent corrosion resistance.
Description
Technical Field
The disclosure relates to the technical field of corrosion prevention, and particularly relates to an anticorrosive coating, a preparation method thereof and an anticorrosive coating.
Background
Metal structures are often subjected to various corrosion factors in exposed environments, and corrosion of metal structures causes significant economic losses, and therefore, it is important to protect metal structures from corrosion in corrosive environments. At present, various anticorrosive coatings are developed, including organic coatings, metal oxide coatings, organic/inorganic hybrid coatings, ceramic coatings, nano coatings and the like, wherein the organic anticorrosive coatings have the advantages of simplicity, high efficiency, easiness in processing and the like, but have the problems of poor scratch resistance and unstable anticorrosive performance.
The above information disclosed in the background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute prior art that is known to a person of ordinary skill in the art.
Disclosure of Invention
The purpose of the present disclosure is to provide an anticorrosive coating, a preparation method thereof, and an anticorrosive coating, wherein the anticorrosive coating formed by the anticorrosive coating has excellent scratch resistance and excellent corrosion resistance.
In order to achieve the purpose, the technical scheme adopted by the disclosure is as follows:
according to a first aspect of the present disclosure, an anticorrosive coating is provided, which comprises a base material system and a curing agent system, wherein the base material system comprises, by mass, 0.1-1 part of fumed silica, 40-50 parts of resin, 5-15 parts of filler, 2-3 parts of an auxiliary agent, and 10-20 parts of a solvent; wherein the mass ratio of the base material system to the curing agent system is 100:11.25.
in an exemplary embodiment of the present disclosure, the fumed silica is a hydrophobic fumed silica obtained by treating a hydrophilic fumed silica having a specific surface area of 130m2/g with dimethyldichlorosilane.
In one exemplary embodiment of the present disclosure, the resin includes one or both of a silicone epoxy resin, a silicone resin.
In an exemplary embodiment of the present disclosure, the filler includes one or any of pigment yellow, high temperature resistant pigment yellow, pigment red, and filler red.
In an exemplary embodiment of the present disclosure, the auxiliary agent includes one or any of a defoaming agent, a dispersing agent, and a leveling agent.
In an exemplary embodiment of the present disclosure, the solvent includes butyl acetate.
In one exemplary embodiment of the present disclosure, the curing agent system includes 3-aminopropyl triethylsilane.
According to a second aspect of the present disclosure, there is provided a method of preparing an anticorrosive paint, the method comprising:
preparing a base material system, wherein the base material system comprises 0.1-1 part by mass of fumed silica, 40-50 parts by mass of resin, 5-15 parts by mass of filler, 2-3 parts by mass of auxiliary agent and 10-20 parts by mass of solvent;
preparing a curing agent system;
and (2) mixing the base material system and the curing agent system according to the mass ratio of 100 to 11.25, and stirring for 3-7 min at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm to obtain the anticorrosive coating.
In one exemplary embodiment of the present disclosure, the preparing the binder system comprises:
adding 2-3 parts by mass of an auxiliary agent into 40-50 parts by mass of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
sequentially adding 0.1-1 part by mass of fumed silica and 5-15 parts by mass of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
adding 10-20 parts by mass of solvent into the second mixture, and stirring at the rotating speed of 1900-2100 rpm for 8-12 min to obtain a third mixture;
and grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain the base material system.
According to a third aspect of the present disclosure, there is provided an anticorrosive coating formed of the anticorrosive paint of any one of the preceding claims.
According to the anticorrosive coating, the preparation method thereof and the anticorrosive coating, the fumed silica in the anticorrosive coating has a large specific surface area and strong surface adsorption capacity, and can well adsorb other components such as resin, auxiliaries and the like in the anticorrosive coating, and meanwhile, the fumed silica has good stability, so that the anticorrosive coating has excellent corrosion resistance. In addition, the hardness of the particles of the fumed silica is higher, so that the anticorrosive coating formed by the anticorrosive paint also has excellent scratch resistance.
Detailed Description
The technical solution of the present invention is further explained below according to specific embodiments. The scope of protection of the invention is not limited to the following examples, which are set forth for illustrative purposes only and are not intended to limit the invention in any way.
The disclosure provides an anticorrosive paint, which comprises a base material system and a curing agent system, wherein the base material system comprises 0.1-1 part of fumed silica, 40-50 parts of resin, 5-15 parts of filler, 2-3 parts of auxiliary agent and 10-20 parts of solvent by mass; wherein the mass ratio of the base material system to the curing agent system is 100:11.25.
according to the anticorrosive coating and the anticorrosive coating provided by the disclosure, the fumed silica in the anticorrosive coating has a large specific surface area and strong surface adsorption capacity, and can better adsorb other components such as resin, auxiliaries and the like in the anticorrosive coating, and meanwhile, the fumed silica has good stability, so that the anticorrosive coating has excellent corrosion resistance. In addition, the hardness of the particles of the fumed silica is higher, so that the anticorrosive coating formed by the anticorrosive paint also has excellent scratch resistance.
The anticorrosive coatings according to the embodiments of the present invention are explained in detail below:
the base material system can comprise 0.1-1 part by mass of fumed silica, 40-50 parts by mass of resin, 5-15 parts by mass of filler, 2-3 parts by mass of auxiliary agent and 10-20 parts by mass of solvent, wherein:
fumed silica is a nanoscale powder with a particle size of 7-40 rim and a specific surface area generally greater than 100m 2 The gas phase silicon dioxide has the characteristics of better reinforcement, thickening, insulation, sagging prevention and the like due to the nanometer effect, so the gas phase silicon dioxide is widely applied to the polymer industrial fields of rubber, plastics, coatings and the like. The fumed silica comprises hydrophilic fumed silica and hydrophobic fumed silica, the hydrophilic silica can be wetted by water, the hydrophobic fumed silica cannot be wetted by water, the hydrophobic fumed silica has good hydrophobicity, and the corrosion resistance of the coating can be improved.
The hydrophobic fumed silica is generally a product obtained by treating hydrophilic fumed silica, and for example, the fumed silica of the embodiments of the present disclosure may have a specific surface area of 130m 2 The specific treatment process of the hydrophobic fumed silica obtained after the hydrophilic fumed silica is treated by dimethyldichlorosilane is not described in detail here.
The resin is the basis for forming the anticorrosive coating, and the resin of the embodiment of the present disclosure may include one of a silicone epoxy resin or a silicone resin, and of course, may also be a mixture including a silicone epoxy resin and a silicone resin, and is not particularly limited herein.
The solvent is used to dilute the resin, and therefore, an organic solvent having a good solubility to the resin to be used may be selected, for example, the solvent in the embodiment of the present disclosure may be butyl acetate or the like.
The filler can improve the performance of the paint, particularly, the filler can play a role in filling the paint, increase the thickness of a paint film, enable the paint film to be full and firm, adjust the rheological properties of the paint, such as thickening, precipitation prevention and the like, improve the mechanical strength of the paint film, and improve the wear resistance and the durability. In addition, the filler may also provide a pigment for the anticorrosive paint, for example, the filler of the embodiment of the present disclosure may include one or more of pigment yellow, high temperature resistant pigment yellow, pigment red, and filler red, and the color of the corresponding paint may be yellow, red, or orange after mixing yellow and red, of course, the filler may also include other colors, which is not particularly limited herein.
The auxiliary agent is used for improving and enhancing the performance of the coating, for example, the auxiliary agent of the embodiment of the present disclosure may include one or more of a defoaming agent, a dispersing agent, and a leveling agent, wherein:
the defoaming agent is used for preventing all components of the coating from generating foam in the mixing process, so that the compactness of the coating is improved; the dispersing agent is used for preventing the flocculation and sedimentation of the coating, so that the surface uniformity of the coating is improved; the leveling agent is used for helping the coating to form a flat, smooth and uniform coating film in the drying film-forming process, so that the surface tension of the coating is effectively reduced, and the leveling property and uniformity of the coating are improved.
The curing agent system comprises a curing agent which can accelerate the curing speed of the coating after being coated on a metal substrate, particularly under the environment without light or weak light so as to improve the coating efficiency of the metal framework. For example, the curing agent of embodiments of the present disclosure may include 3-aminopropyltriethylsilane.
The embodiment also provides a preparation method of the anticorrosive paint, which comprises the following steps:
step S100, preparing a base material system, wherein the base material system comprises, by mass, 0.1-1 part of fumed silica, 40-50 parts of resin, 5-15 parts of filler, 2-3 parts of auxiliary agent and 10-20 parts of solvent;
step S200, preparing a curing agent system;
and step S300, mixing the base material system and the curing agent system according to the mass ratio of 100.
The anticorrosive paint prepared by the preparation method of the anticorrosive paint provided by the disclosure has the same or similar beneficial effects as the anticorrosive paint and the anticorrosive paint, and details are not repeated here.
The method for preparing the anticorrosive paint according to the embodiment of the present invention is explained in detail as follows:
in step S100, preparing the binder system may include the steps of:
step S1001, adding 2-3 parts by mass of an auxiliary agent into 40-50 parts by mass of resin, mixing, and stirring for 8-12 min to obtain a first mixture. Therefore, the auxiliary agent can be fully dispersed in the resin, so that the defoaming agent, the dispersing agent or the flatting agent can fully exert the effect, and the compactness, the surface uniformity or the flatting property of the coating can be improved.
And step S1002, sequentially adding 0.1-1 part by mass of fumed silica and 5-15 parts by mass of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture. In this way, it is ensured that the fumed silica and flavoring are sufficiently dispersed in the first mixture to provide a coating having uniform scratch resistance and also uniform color.
And step S1003, adding 10-20 parts by mass of solvent into the second mixture, and stirring at the rotating speed of 1900-2100 rpm for 8-12 min to obtain a third mixture. In this way, it is ensured that the solvent is sufficiently dispersed in the second mixture to reduce the viscosity of the second mixture.
And step S1004, grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 microns, and cooling to 20-30 ℃ and curing for 22-26 h because heat is generated in the grinding process, so that the temperature of the third mixture is increased, the viscosity of the coating is gradually reduced and becomes stable, the transparency is improved, and a base material system is obtained.
In step S300, the prepared base material system and the curing agent system (3-aminopropyltriethylsilane) are mixed according to the mass ratio of 100 to 11.25, and stirred at the temperature of 25 to 35 ℃ and the rotation speed of 600 to 800rpm for 3 to 7min, so as to obtain the anticorrosive coating. Therefore, the curing agent can be fully dispersed in the base material system, and the curing speed of the coating after being coated on a metal substrate is improved.
The disclosure also provides an anticorrosive coating which is formed by the anticorrosive paint.
For example, the anticorrosive paint may be applied to the surface of the metal substrate by a spray gun so that the anticorrosive paint can be well adhered to the surface of the metal substrate, and in this case, the thickness of the coating may be 40 μm to 60 μm, but the thickness of the coating may be less than 40 μm or greater than 60 μm, which is not particularly limited herein.
The anticorrosive coatings of the present disclosure and their preparation are further explained and illustrated below in a number of different examples:
the first embodiment is as follows:
an anticorrosive coating comprising a binder system and a curing agent system, wherein: the base material system comprises 0.1g of fumed silica, 40g of resin, 5g of filler, 2g of auxiliary agent and 10g of solvent, and the curing agent system comprises 6.45g of curing agent.
The preparation method of the anticorrosive paint can comprise the following steps:
step 1), adding 2g of auxiliary agent into 40g of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
step 2), sequentially adding 0.1g of fumed silica and 5g of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
step 3), adding 10g of solvent into the second mixture, and stirring for 8-12 min at the rotating speed of 1900-2100 rpm to obtain a third mixture;
step 4), grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain a base material system;
and step 5), adding 6.45g of curing agent into the base material system, and stirring at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm for 3-7 min to obtain the anticorrosive coating.
The second embodiment:
an anticorrosive coating comprising a binder system and a curing agent system, wherein: the base material system comprises 0.1g of fumed silica, 42g of resin, 6g of filler, 3g of auxiliary agent and 15g of solvent, and the curing agent system comprises 7.45g of curing agent.
The preparation of the anticorrosive paint can comprise the following steps:
step 1), adding 3g of an auxiliary agent into 42g of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
step 2), sequentially adding 0.1g of fumed silica and 6g of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
step 3), adding 15g of solvent into the second mixture, and stirring for 8-12 min at the rotating speed of 1900-2100 rpm to obtain a third mixture;
step 4), grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain a base material system;
and step 5), adding 7.45g of curing agent into the base material system, and stirring at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm for 3-7 min to obtain the anticorrosive coating.
Example three:
an anticorrosive coating comprising a binder system and a curing agent system, wherein: the base material system comprises 0.3g of fumed silica, 41g of resin, 5g of filler, 2g of auxiliary agent and 12g of solvent, and the curing agent system comprises 6.78g of curing agent.
The preparation method of the anticorrosive paint can comprise the following steps:
step 1), adding 2g of auxiliary agent into 41g of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
step 2), sequentially adding 0.3g of fumed silica and 5g of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
step 3), adding 12g of solvent into the second mixture, and stirring for 8-12 min at the rotating speed of 1900-2100 rpm to obtain a third mixture;
step 4), grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain a base material system;
and step 5), adding 6.78g of curing agent into the base material system, and stirring at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm for 3-7 min to obtain the anticorrosive coating.
Example four:
an anticorrosive coating comprising a binder system and a curing agent system, wherein: the base material system comprises 0.8g of fumed silica, 42g of resin, 15g of filler, 2.2g of auxiliary agent and 13g of solvent, and the curing agent system comprises 8.25g of curing agent.
The preparation of the anticorrosive paint can comprise the following steps:
step 1), adding 2.2g of an auxiliary agent into 42g of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
step 2), sequentially adding 0.8g of fumed silica and 15g of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
step 3), adding 13g of solvent into the second mixture, and stirring for 8-12 min at the rotating speed of 1900-2100 rpm to obtain a third mixture;
step 4), grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain a base material system;
and step 5), adding 8.25g of curing agent into the base material system, and stirring at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm for 3-7 min to obtain the anticorrosive coating.
Example five:
an anticorrosive coating comprising a binder system and a curing agent system, wherein: the base material system comprises 0.5g of fumed silica, 44.5g of resin, 8g of filler, 2.5g of auxiliary agent and 19g of solvent, and the curing agent system comprises 8.1g of curing agent.
The preparation of the anticorrosive paint can comprise the following steps:
step 1), adding 2.5g of auxiliary agent into 44.5g of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
step 2), sequentially adding 0.5g of fumed silica and 8g of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
step 3), adding 19g of solvent into the second mixture, and stirring for 8-12 min at the rotating speed of 1900-2100 rpm to obtain a third mixture;
step 4), grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain a base material system;
and step 5), adding 8.1g of curing agent into the base material system, and stirring at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm for 3-7 min to obtain the anticorrosive coating.
Example six:
an anticorrosive coating comprising a binder system and a curing agent system, wherein: the base material system comprises 0.2g of fumed silica, 50g of resin, 15g of filler, 3g of auxiliary agent and 20g of solvent, and the curing agent system comprises 10g of curing agent.
The preparation method of the anticorrosive paint can comprise the following steps:
step 1), adding 3g of an auxiliary agent into 50g of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
step 2), sequentially adding 0.2g of fumed silica and 15g of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
step 3), adding 20g of solvent into the second mixture, and stirring for 8-12 min at the rotating speed of 1900-2100 rpm to obtain a third mixture;
step 4), grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain a base material system;
and step 5), adding 10g of curing agent into the base material system, and stirring at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm for 3-7 min to obtain the anticorrosive coating.
Example seven:
an anticorrosive coating comprising a binder system and a curing agent system, wherein: the base material system comprises 1g of fumed silica, 50g of resin, 15g of filler, 3g of auxiliary agent and 20g of solvent, and the curing agent system comprises 10.1g of curing agent.
The preparation method of the anticorrosive paint can comprise the following steps:
step 1), adding 3g of auxiliary agent into 50g of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
step 2), sequentially adding 1g of fumed silica and 15g of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
step 3), adding 20g of solvent into the second mixture, and stirring for 8-12 min at the rotating speed of 1900-2100 rpm to obtain a third mixture;
step 4), grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain a base material system;
and step 5), adding 10.1g of curing agent into the base material system, and stirring at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm for 3-7 min to obtain the anticorrosive coating.
Example eight
The performance of the anticorrosive coatings formed by the anticorrosive coatings of the first, second, third, fourth, fifth, sixth and seventh examples is detected, and the detection results are shown in table 1:
table 1: performance detection results of anticorrosive coatings prepared from anticorrosive coatings of different embodiments
Wherein, the salt spray experiment is a neutral salt spray experiment with the salt water concentration of 5 percent and the pH value of about 7, and the change of the test piece is observed by the spray experiment under the condition of 35 ℃.
As can be seen from table 1, the anticorrosive coating formed by the anticorrosive coating in example 7 is outstanding in impact resistance, which indicates that the addition of fumed silica significantly improves the scratch resistance and mechanical properties of the anticorrosive coating, compared to examples 1, 2, 3, 4, 5, and 6, in example 7, in which the proportion of fumed silica is the greatest. Meanwhile, the salt spray resistance time of all the examples reaches more than 3300 hours, which shows that the addition of fumed silica also obviously improves the corrosion resistance of the anticorrosive coating.
It should be noted by those skilled in the art that the described embodiments of the present invention are merely exemplary and that various other substitutions, alterations, and modifications may be made within the scope of the present invention. Accordingly, the present invention is not limited to the above-described embodiments, but is only limited by the claims.
Claims (5)
1. A preparation method of an anticorrosive paint is characterized by comprising the following steps:
preparing a base material system, wherein the base material system comprises 0.1-1 part by mass of fumed silica, 40-50 parts by mass of resin, 5-15 parts by mass of filler, 2-3 parts by mass of auxiliary agent and 10-20 parts by mass of solvent; the base system is prepared by:
adding 2-3 parts by mass of an auxiliary agent into 40-50 parts by mass of resin, mixing, and stirring for 8-12 min to obtain a first mixture;
sequentially adding 0.1-1 part by mass of fumed silica and 5-15 parts by mass of filler into the first mixture, and stirring at the temperature of 25-35 ℃ and the rotating speed of 1400-1600 rpm for 13-17 min to obtain a second mixture;
adding 10-20 parts by mass of solvent into the second mixture, and stirring at the rotating speed of 1900-2100 rpm for 8-12 min to obtain a third mixture;
grinding the third mixture by using a ball mill until the particle size of solid particles is less than 10 mu m, cooling to 20-30 ℃, and curing for 22-26 h to obtain a base material system;
preparing a curing agent system:
and (2) mixing the base material system and the curing agent system according to the mass ratio of 100:11.25, and stirring at the temperature of 25-35 ℃ and the rotating speed of 600-800rpm for 3-7 min to obtain the anticorrosive coating; wherein the content of the first and second substances,
the fumed silica has a specific surface area of 130m 2 The hydrophilic fumed silica is treated by dimethyldichlorosilane to obtain hydrophobic fumed silica; the resin comprises one or two of organic silicon epoxy resin and organic silicon resin;
the solvent comprises butyl acetate;
the curing agent system includes 3-aminopropyltriethylsilane.
2. The preparation method of the anticorrosive paint according to claim 1, wherein the filler comprises one or more of pigment yellow and pigment red.
3. The preparation method of the anticorrosive paint according to claim 1, wherein the auxiliary agent comprises one or more of a defoaming agent, a dispersing agent and a leveling agent.
4. The anticorrosive coating prepared by the preparation method of the anticorrosive coating according to claim 1, comprising a binder system and a curing agent system, and is characterized in that the binder system comprises, by mass, 0.1-1 part of fumed silica, 40-50 parts of resin, 5-15 parts of filler, 2-3 parts of auxiliary agent, and 10-20 parts of solvent; wherein the mass ratio of the base material system to the curing agent system is 100:11.25; wherein the content of the first and second substances,
the fumed silica has a specific surface area of 130m 2 The/g hydrophilic fumed silica is treated by dimethyldichlorosilane to obtain hydrophobic fumed silica;
the resin comprises one or two of organic silicon epoxy resin and organic silicon resin.
5. An anticorrosive coating, characterized in that the anticorrosive coating is formed from the coating prepared by the method of preparing an anticorrosive coating according to any one of claims 1 to 3.
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| CN103113761A (en) * | 2013-01-31 | 2013-05-22 | 沈阳化工股份有限公司 | Surface modified fumed silica for improving powder fluidity and production method thereof |
| CN106433223A (en) * | 2015-08-10 | 2017-02-22 | 新特能源股份有限公司 | Fumed silica surface modification method |
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| CN110452568A (en) | 2019-11-15 |
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