CN115260860A - Organic silicon coating and preparation method and application thereof - Google Patents
Organic silicon coating and preparation method and application thereof Download PDFInfo
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- CN115260860A CN115260860A CN202211013169.1A CN202211013169A CN115260860A CN 115260860 A CN115260860 A CN 115260860A CN 202211013169 A CN202211013169 A CN 202211013169A CN 115260860 A CN115260860 A CN 115260860A
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/18—Homopolymers or copolymers of nitriles
- C09D133/20—Homopolymers or copolymers of acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/42—Nitriles
- C08F220/44—Acrylonitrile
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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
Abstract
The invention provides an organic silicon coating and a preparation method and application thereof. Acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, triethoxyoctylsilane and other raw materials are combined to prepare the organic silicon system anticorrosive and antifouling paint with excellent mechanical strength, excellent anticorrosive performance and obvious antifouling effect. The organic silicon coating disclosed by the invention has excellent film-forming property, hydrophobic antifouling property and corrosion resistance, is suitable for surface protection and antifouling of base materials such as metal, wood and building, and the formed organic silicon protective coating is nontoxic and tasteless after being completely cured, and has remarkable technical advantages.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to an organic silicon coating as well as a preparation method and application thereof.
Background
The coating has wide application in the field of surface modification of daily metal and non-metal materials and the like, can be coated on the surfaces of various metal products, non-metal devices and the like to form a solid protective film with certain strength, prevents a base material from being corroded, enlarges the application range of the material to a certain extent and improves the aesthetic property.
At present, various protective coatings have different functions, for example, metal maintenance coatings and coatings used for house decoration are various in types, the formula and the preparation method of the coatings are different, so that the performances of the coatings are uneven, a plurality of coatings can emit gases such as formaldehyde, benzene vapor, ammonia gas and the like which are harmful to human bodies, respiratory system diseases of the human bodies can be caused in mild cases, cancers can be caused in severe cases, the health of the human bodies is harmed, and meanwhile, the air pollution of living environments can be caused.
At present, functional coatings on the market are all-round, but most coatings still have very limited protective effect on the surface of a base material, and the original color of the coating on the surfaces of metal, nonmetal and the like can be changed, the adhesion is reduced, and even the coating falls off under the irradiation of ultraviolet light after long-term use, so that the protective effect on the surface of the material is lost; and most coatings do not have the anti-stain property, once the surfaces of the coatings are polluted, the conventional cleaning means are extremely difficult to remove stains, the protective function of the coatings is influenced, and the attractiveness is also influenced.
With the continuous development of the coating industry, due to the fact that the pollution to the environment is large in the product and production links, relevant policies are continuously issued, the development of environment-friendly and resource-saving coatings is encouraged, and the development of the coating industry is guided to trend to green and environment-friendly. However, even under the hot tide of the current appeal for environmental protection and green development, most of the existing decoration coatings still deviate from the main regulation of the industry of 'green environmental protection', and the environmental protection and the protection performance of the common decoration coatings can not completely meet the increasing requirements of people.
Therefore, at present, there is an urgent need to develop a coating which is environment-friendly, and has excellent anti-fouling performance and corrosion resistance, and the coating can be applied to the fields of furniture surface protection, house decoration and the like.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. To this end, the first aspect of the present invention provides an organosilicon coating having excellent corrosion resistance, hydrophobic and oleophobic properties, and strong adhesion properties.
In a second aspect, the present invention provides a method for preparing a silicone coating.
A third aspect of the invention provides a protective coating.
The fourth aspect of the invention proposes the use of a silicone coating for surface protection.
According to a first aspect of the present invention, there is provided a silicone coating prepared from the following raw materials: acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, triethoxyoctylsilane and an initiator.
In the present invention, the gamma-glycidoxypropyltrimethoxysilane is the silane coupling agent KH-560, CAS No.:2530-83-8; the gamma-mercaptopropyltriethoxysilane is a silane coupling agent KH-580, CAS No.:14814-09-6; the triethoxyoctylsilane is the silane coupling agent KH-832, CAS No.:2943-75-1.
In some embodiments of the invention, the acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, and triethoxyoctylsilane are present in a molar ratio of 1: (0.5-0.8): (0.2-0.7): (0.2-0.6): (0.1-0.15).
In some preferred embodiments of the present invention, the acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, and triethoxyoctylsilane are present in a molar ratio of 1: (0.6-0.8): (0.4-0.7): (0.3-0.6): (0.1-0.15).
In the invention, based on the characteristics of free radical polymerization reaction between carbon-carbon double bonds and polycondensation reaction between alkoxy groups, the organic siloxane component with lower surface energy is applied to the anti-fouling protective coating, and the anti-fouling coating which can be firmly combined with substrates such as metal, glass, wood, polymer and the like is prepared.
In some preferred embodiments of the present invention, the raw materials for preparing the silicone coating further include a solvent.
In some preferred embodiments of the present invention, the solvent comprises water and/or an organic solvent, preferably an organic solvent, more preferably a water-insoluble organic solvent, and the organic solvent used in preparing the starting material includes, but is not limited to: any one or more of dimethyl sulfoxide, benzene, toluene, xylene, ethyl acetate, butyl acetate, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, propylene glycol methyl ether acetate, tetrahydrofuran, chloroform, n-pentane, n-hexane and cyclohexane.
In some preferred embodiments of the present invention, the mass of the solvent is 70% to 100% of the total mass of the four components of acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane.
In some preferred embodiments of the present invention, the initiator includes, but is not limited to, peroxide-based initiators, azo-based initiators, polyfunctional initiators, photoinitiators, preferably peroxide-based initiators and azo-based initiators. In the process of carbon-carbon double bond free radical polymerization reaction, the azo initiator has no induced decomposition, and the generated free radical is not easy to react with a solvent and impurities, so that the method has good action effect. The peroxide initiator and the azo initiator used in the present invention include, but are not limited to: any one or more of benzoyl peroxide, ammonium persulfate, potassium persulfate, tert-butyl hydroperoxide, azobisisobutyronitrile, azobisisoheptonitrile, azobisisobutyramidine hydrochloride and the like.
In the invention, the initiator can generate free radicals under heating, and carbon-carbon double bonds and sulfydryl in acrylonitrile, vinyl acetate and gamma-mercaptopropyltriethoxysilane in the raw materials of the organic silicon coating can efficiently perform free radical polymerization reaction under the action of the free radicals to form a high polymer.
In some preferred embodiments of the present invention, the initiator is 0.4-0.7% of the total mass of the acrylonitrile, vinyl acetate and gamma-glycidoxypropyltrimethoxysilane components.
According to a second aspect of the present invention, there is provided a method for preparing the silicone coating of the first aspect, comprising the steps of:
and mixing the acrylonitrile, the vinyl acetate, the gamma-glycidoxypropyltrimethoxysilane, the gamma-mercaptopropyltriethoxysilane and the triethoxyoctylsilane with the solvent, adding the initiator, and reacting to obtain the organic silicon coating.
In some embodiments of the invention, the acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, and triethoxyoctylsilane are present in a molar ratio of 1: (0.5 to 0.8): (0.2-0.7): (0.2-0.6): (0.1-0.15).
In some preferred embodiments of the present invention, the acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, and triethoxyoctylsilane are present in a molar ratio of 1: (0.6-0.8): (0.4-0.7): (0.3-0.6): (0.1-0.15).
In some preferred embodiments of the present invention, the solvent comprises water and/or an organic solvent, preferably an organic solvent, more preferably a water-insoluble organic solvent, and the organic solvent used in preparing the starting material includes, but is not limited to: any one or more of dimethyl sulfoxide, benzene, toluene, xylene, ethyl acetate, butyl acetate, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, propylene glycol methyl ether acetate, tetrahydrofuran, chloroform, n-pentane, n-hexane and cyclohexane.
In some preferred embodiments of the present invention, the initiator includes, but is not limited to, peroxide-based initiators, azo-based initiators, polyfunctional initiators, photoinitiators, preferably peroxide-based initiators and azo-based initiators.
According to a third aspect of the present invention, a protective coating is provided, which comprises the silicone coating of the first aspect cured.
In some embodiments of the present invention, the method for making the protective coating comprises the following steps: firstly, preparing a base material, and cleaning the surface of the base material, wherein the base material comprises inorganic and organic base materials, preferably solid wood boards (without limitation to tree species), density boards, iron sheets, copper sheets, aluminum sheets, silicate walls, ceramics and the like; and then coating the organosilicon coating on the surface of a substrate, and curing to obtain the protective coating.
In some preferred embodiments of the present invention, the silicone coating has a curing temperature of from 0 ℃ to 150 ℃, preferably from 30 ℃ to 100 ℃, more preferably from 40 ℃ to 80 ℃.
In some preferred embodiments of the present invention, the silicone coating has a curing time of 0.1 to 24 hours, preferably 0.5 to 10 hours, more preferably 1 to 5 hours.
In some more preferred embodiments of the present invention, the coating may be repeated, i.e., the coating may be repeated after the silicone coating is cured, for a number of times ranging from 1 to 100 times, preferably from 1 to 20 times, and more preferably from 1 to 5 times.
In some more preferred embodiments of the present invention, the method of coating includes, but is not limited to: spin coating, spray coating and brush coating.
According to a fourth aspect of the present invention, there is provided a use of a silicone coating in surface protection, wherein the silicone coating is the silicone coating according to the first aspect or the silicone coating obtained by the preparation method according to the second aspect.
In some embodiments of the invention, the surface includes, but is not limited to, the surface of a substrate of metal, wood, building material, and the like.
In some embodiments of the invention, the surface protection includes, but is not limited to, corrosion protection, hydrophobic stain protection, scratch protection.
The beneficial effects of the invention are as follows:
1. the organic silicon coating is based on free radical polymerization reaction among acrylonitrile, vinyl acetate and gamma-mercaptopropyltriethoxysilane, and functional groups such as cyano, epoxy, ester and the like on a polymer molecular structure can generate physical action and chemical reaction with groups and ions on the surfaces of inorganic and organic base materials, so that the organic silicon coating has good film forming performance, realizes firm combination with the surface of the base material, and has the bonding force reaching 0 level. In addition, alkoxy in gamma-glycidoxypropyltrimethoxysilane and alkoxy in triethoxyoctylsilane can be subjected to polycondensation reaction under heating, strong polar hydroxyl, epoxy and other groups contained in product molecules can also generate strong interaction with groups on the surface of a base material, the adhesion of the organic silicon coating to the base material is further enhanced, and acrylonitrile and triethoxyoctylsilane have relatively low surface energy and can be orderly arranged on the surface of the coating, so that the organic silicon protective coating has excellent anti-corrosion performance and hydrophobic performance, the coating is not only difficult to be adhered by stains with high surface energy, but also can block the corrosion effect of corrosive substances on the base material under the coating. Therefore, the organic silicon coating of the invention has excellent film forming property, hydrophobic antifouling property and corrosion resistance, and is suitable for surface protection and antifouling of base materials such as metal, wood, buildings and the like.
2. The preparation method of the organic silicon coating is simple and easy to operate, the required raw materials are easy to obtain, and the organic silicon coating is easy for large-scale production.
3. The organic silicon protective coating is nontoxic and tasteless after being completely cured, and has remarkable technical advantages.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a graph of the transparency of a silicone coating made from an organic coating of example 1 of the present invention, the silicone coating having a thickness of 1 μm;
FIG. 2 is a graph showing the effect of acid corrosion resistance of iron sheets coated with silicone coatings according to examples of the present invention in 0.1M hydrochloric acid solution for 7 days;
FIG. 3 is a diagram showing the effect of salt corrosion resistance of iron sheets coated with the organosilicon coating of the embodiment of the invention on the surface after being soaked in 3.5% saline water for 7 days;
fig. 4 is a graph showing the results of a water droplet adsorption resistance test on glass after surface spraying of the silicone coating of example 1;
fig. 5 is a physical diagram of a one-hundred-grid scratch on an iron sheet having a surface coated with the silicone coatings of examples 1 and 3, respectively.
Detailed Description
The idea of the invention and the resulting technical effects will be clearly and completely described below in connection with the embodiments, so that the objects, features and effects of the invention can be fully understood. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Example 1
The embodiment prepares an organic silicon coating and an organic silicon protective coating, and the specific process comprises the following steps:
mixing acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane according to the mass ratio of 1.7; when the temperature of the reaction system is reduced to be below 80 ℃, triethoxyoctylsilane which accounts for 10 percent of the amount of acrylonitrile is added, and then the temperature is raised to 80 ℃ to react for 120min to obtain the organic silicon coating.
The obtained organic silicon coating is brushed on the surface of a base material (iron sheet) and cured for 2 hours at the temperature of 50 ℃ to obtain the organic silicon protective coating.
Example 2
The embodiment prepares the organic silicon coating and the organic silicon protective coating, and the specific process comprises the following steps:
mixing acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane according to the mass ratio of 1.8; when the temperature of the reaction system is reduced to be below 80 ℃, triethoxyoctylsilane which accounts for 12 percent of the amount of acrylonitrile is added, and then the temperature is raised to 80 ℃ to react for 120min to obtain the organic silicon coating.
The obtained organic silicon coating is brushed on the surface of a base material (a solid wood board), and is cured for 3 hours at 75 ℃ to obtain the organic silicon protective coating.
Example 3
The embodiment prepares the organic silicon coating and the organic silicon protective coating, and the specific process comprises the following steps:
mixing acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane according to the mass ratio of 1.6; when the temperature of the reaction system is reduced to below 70 ℃, triethoxyoctylsilane which accounts for 15% of the mass of the acrylonitrile is added, and then the temperature is raised to 70 ℃ for reaction for 120min to obtain the organic silicon coating.
The obtained organic silicon coating is brushed on the surface of a base material (iron sheet) in a brushing mode, the curing is carried out for 1.5h at the temperature of 60 ℃, the organic silicon coating is repeatedly brushed on the surface of the base material after the curing (the coating amount is unchanged), and the brushing-curing-brushing process is repeated for 1 time, so that the organic silicon protective coating can be obtained.
Example 4
The embodiment prepares an organic silicon coating and an organic silicon protective coating, and the specific process comprises the following steps:
mixing acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane according to the mass ratio of 1.8; when the temperature of the reaction system is reduced to below 60 ℃, triethoxyoctylsilane which accounts for 12 percent of the amount of acrylonitrile is added, and then the temperature is raised to 60 ℃ to react for 180min to obtain the organic silicon coating.
The obtained organic silicon coating is brushed on the surface of a base material (a solid wood board), the curing is carried out for 2 hours at the temperature of 50 ℃, the organic silicon coating is repeatedly brushed on the surface of the base material after the curing (the coating amount is unchanged), and the brushing-curing-brushing process is repeated for 2 times, so that the organic silicon protective coating can be obtained.
Example 5
The embodiment prepares the organic silicon coating and the organic silicon protective coating, and the specific process comprises the following steps:
mixing acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane according to the mass ratio of 1; when the temperature of the reaction system is reduced to below 70 ℃, triethoxyoctylsilane which accounts for 10 percent of the mass of acrylonitrile is added, and then the temperature is raised to 70 ℃ to react for 120min to obtain the organic silicon coating.
The obtained organic silicon coating is brushed on the surface of a base material (iron sheet) in a brushing mode, the base material (iron sheet) is cured for 2 hours at 70 ℃, the organic silicon coating is repeatedly brushed on the surface of the base material after the curing (the coating amount is unchanged), and the brushing-curing-brushing process is repeated for 3 times, so that the organic silicon protective coating can be obtained.
Example 6
The embodiment prepares an organic silicon coating and an organic silicon protective coating, and the specific process comprises the following steps:
mixing acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane according to the mass ratio of 1.7; when the temperature of the reaction system is reduced to be below 80 ℃, triethoxyoctylsilane which accounts for 10 percent of the amount of acrylonitrile is added, and then the temperature is raised to 80 ℃ to react for 210min to obtain the organic silicon coating.
The obtained organic silicon coating is brushed on the surface of a base material (iron sheet) in a brushing mode, the base material (iron sheet) is cured for 2 hours at 70 ℃, the organic silicon coating is repeatedly brushed on the surface of the base material after the curing (the coating amount is unchanged), and the brushing-curing-brushing process is repeated for 1 time, so that the organic silicon protective coating can be obtained.
Example 7
The embodiment prepares an organic silicon coating and an organic silicon protective coating, and the specific process comprises the following steps:
mixing acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane according to the mass ratio of 1.8; when the temperature of the reaction system is reduced to below 70 ℃, triethoxyoctylsilane which accounts for 15% of the mass of acrylonitrile is added, and then the temperature is raised to 70 ℃ for reaction for 210min to obtain the organic silicon coating.
The obtained organic silicon coating is brushed on the surface of a base material (iron sheet) and cured for 3 hours at the temperature of 60 ℃ to obtain the organic silicon protective coating.
The raw material compositions of the silicone coatings of the above examples 1 to 7 are as follows:
table 1 raw material composition of silicone coating of examples 1 to 7
Note: in Table 1, a: b: c: d: e represent the molar ratio of acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, and triethoxyoctylsilane.
Test examples
The thickness and transparency of the coating prepared from the silicone coating prepared in example 1 were tested according to methods conventional in the art and the results are shown in fig. 1.
The silicone coatings prepared in examples 1, 3 and 7 were respectively sprayed on the patches to form coatings, and then immersed in 0.1M hydrochloric acid solution for 7 days to test the acid corrosion resistance, and the results are shown in fig. 2.
The silicone coatings prepared in examples 1, 2, and 6 were respectively sprayed on the patches to form coatings, and then immersed in 3.5% saline solution for 7 days to test their salt corrosion resistance, and the results are shown in fig. 3.
The silicone coating prepared in example 1 was sprayed on glass to form a coating layer, and the water-drop adsorption resistance thereof was tested, and the results are shown in fig. 4.
The silicone coatings prepared in examples 1 and 3 were respectively sprayed on a patch to form a coating layer, and then the surfaces thereof were subjected to a crow's scratch test, and the results are shown in fig. 5.
The silicone coatings prepared in examples 1, 3, 6 were tested for coating contact angle, thickness and hardness, and the results are shown in table 2:
table 2 coating contact angle and hardness of silicone coatings
The coating of example 3 was tested for its hydrophobic and oleophobic properties, as is conventional in the art. The results are given in table 3 below:
table 3 example 3 surface hydrophobic, oleophobic properties of coatings of silicone coatings
While the embodiments of the present invention have been described in detail, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The organic silicon coating is characterized in that the preparation raw materials of the organic silicon coating comprise: acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, triethoxyoctylsilane and an initiator.
2. The organosilicon paint according to claim 1, wherein the molar ratio of acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, and triethoxyoctylsilane is 1: (0.5 to 0.8): (0.2-0.7): (0.2-0.6): (0.1-0.15).
3. The silicone coating of claim 2, wherein the molar ratio of acrylonitrile, vinyl acetate, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, triethoxyoctylsilane is 1: (0.6-0.8): (0.4-0.7): (0.3-0.6): (0.1-0.15).
4. The organic silicon coating is characterized in that the initiator accounts for 0.4-0.7% of the total mass of the three components of the acrylonitrile, the vinyl acetate and the gamma-glycidoxypropyltrimethoxysilane.
5. The organic silicon coating is characterized in that the raw materials for preparing the organic silicon coating also comprise a solvent, and the mass of the solvent is 70-100% of the total mass of the four components of the acrylonitrile, the vinyl acetate, the gamma-glycidoxypropyltrimethoxysilane and the gamma-mercaptopropyltriethoxysilane.
6. The silicone coating according to claim 4, wherein the initiator comprises any one or more of a peroxide initiator and an azo initiator.
7. The silicone coating of claim 5, wherein the solvent comprises water and/or an organic solvent.
8. A method for producing the silicone coating according to any one of claims 1 to 7, characterized by comprising the steps of:
mixing the acrylonitrile, the vinyl acetate, the gamma-glycidoxypropyltrimethoxysilane, the gamma-mercaptopropyltriethoxysilane, and the triethoxyoctylsilane with the solvent, adding the initiator, and reacting to obtain the organic silicon coating.
9. A protective coating comprising the silicone coating of any one of claims 1 to 7 cured.
10. Use of the silicone coating according to any one of claims 1 to 7 for surface protection.
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| CN112724311A (en) * | 2020-12-28 | 2021-04-30 | 安徽匠星联创新材料科技有限公司 | Ultrahigh-solid-content hydroxyl acrylic polymer and preparation method and application thereof |
| CN113278315A (en) * | 2021-05-27 | 2021-08-20 | 广州大学 | Protective coating and preparation method and application thereof |
| CN113527977A (en) * | 2021-06-16 | 2021-10-22 | 广州大学 | Silicone-acrylic resin coating and preparation method and application thereof |
| CN114854236A (en) * | 2022-05-19 | 2022-08-05 | 广州大学 | High-hardness, anti-adhesion and light-transmitting organic silicon coating material and preparation method thereof |
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