CN113512355B - Weather-resistant salt-fog-resistant convenient-to-construct organic silicon coating - Google Patents
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- 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
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- 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
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- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The invention relates to the field of organic silicon coatings, and discloses a weather-resistant salt-fog-resistant organic silicon coating convenient to construct, which comprises the following raw materials in parts by mass: 100 parts of basic organic silicon polymer, 30-50 parts of reinforcing filler, 40-80 parts of functional filler, 0.1-5 parts of pigment, 10-20 parts of cross-linking agent, 0.1-2 parts of catalyst, 0.1-5 parts of coupling agent and 15-35 parts of solvent, wherein the reinforcing filler is pretreated before use, and the pretreatment method comprises the following steps: after the basic organic silicon polymer and the coupling agent are stirred, the reinforcing filler which is pre-dehydrated and dried is added for mixing. The coating disclosed by the invention achieves a good bonding effect on common base materials such as metal, cement and glass, has good weather resistance, salt mist resistance and ultraviolet resistance, and is particularly suitable for being used in offshore facilities and similar environments needing salt mist resistance and high ultraviolet resistance. The construction mode can be directly used for spraying, the anti-sagging performance is good, the thickness of single-pass coating can reach 200 mu m, the coating times can be effectively reduced, and the process flow is simplified.
Description
Technical Field
The invention relates to the field of organic silicon coatings, in particular to an organic silicon coating which is weather-resistant, salt mist-resistant and convenient to construct.
Background
Organosilicon, i.e. organosilicon compounds, are compounds which contain Si-O bonds and at least one organic radical which is bonded directly to the silicon atom. Because of the unique structure of the organic silicon, the organic silicon has the performances of inorganic materials and organic materials, has the basic properties of low surface tension, small viscosity-temperature coefficient, high compressibility, high gas permeability and the like, has the excellent characteristics of high and low temperature resistance, electrical insulation, oxidation resistance stability, weather resistance, flame retardancy, hydrophobicity, corrosion resistance, no toxicity, no odor, physiological inertia and the like, is widely applied to the industries of aerospace, electronics and electricity, construction, transportation, chemical industry, textile, food, light industry, medical treatment and the like, wherein the organic silicon is mainly applied to sealing, adhesion, lubrication, coating, surface activity, demolding, water resistance, inert filling and the like, and in recent years, the application of the organic silicon in the coating is increasingly wide.
The coating applied to the offshore facility has very high requirements on the performance of the coating and the spraying thickness, because the environment of the offshore facility is very harsh, and the spraying thickness is required to be more than 100 μm. The salt content in seawater is very high, the coating for offshore facilities needs better salt spray resistance, and in addition, direct solar radiation and strong ultraviolet rays are generated, so that the common coating is easy to age. The organosilicon material is superior to the existing material in weather resistance and salt spray resistance, so that the organosilicon coating has a very good prospect in application to offshore facilities.
When spraying offshore facilities, common coatings generally have low viscosity (generally thinner coating viscosity is less than 5000mPa · s) due to the spraying convenience, if the coating is sprayed on a vertical surface, the single-coating thickness is about 20-100 μm, and if the coating thickness exceeds 100 μm, a sagging phenomenon occurs under the influence of gravity, so that the coating surface is wrinkled. On the other hand, a paint with a high viscosity (viscosity of 10000-.
Therefore, in view of practical feasibility, the coating is often applied by spraying a low-viscosity coating material a plurality of times so that the applied thickness of the coating material becomes 100 μm or more. The multiple spraying mode is complex to operate and long in time consumption, and the spraying effect can be greatly influenced if water films or impurities appear between different spraying layers.
Disclosure of Invention
The invention aims to provide a weather-resistant salt-fog-resistant organosilicon coating which is convenient to construct, and aims to solve the problems that the thickness of the existing coating for offshore facilities can reach more than 100 mu m by multiple spraying and the operation is complicated.
In order to achieve the purpose, the invention adopts the following technical scheme: the organic silicon coating with weather resistance, salt mist resistance and convenient construction comprises the following raw materials in parts by mass: 100 parts of basic organic silicon polymer, 30-50 parts of reinforcing filler, 40-80 parts of functional filler and 25.3-67 parts of additive, wherein the reinforcing filler is pretreated before use, and the pretreatment method comprises the following steps: after the basic organic silicon polymer and the coupling agent are stirred, the reinforcing filler which is dehydrated and dried in advance is added and mixed.
The principle and the advantages of the scheme are as follows: in practical application, in the technical scheme, in the process of preparing the organic silicon coating, the reinforcing filler is added into the raw materials; after the basic organic silicon polymer and the coupling agent are stirred, the pre-dehydrated reinforcing filler is added, so that a hydrogen bond is formed between the reinforcing filler and the basic organic silicon polymer, a slight structuring phenomenon can be caused, the hydrogen bond is easy to break in a dynamic state, the coating cannot be sticky, and after the coating is coated on the surface, the hydrogen bond can contribute to the anti-sagging performance of the coating, so that the coating is larger in thickness, the low viscosity effect and the anti-sagging effect are achieved, and the problems of unevenness and wrinkles caused by sagging are avoided. The reinforcing filler adds excessively and can lead to basic mixture caking, and in this technical scheme, through adding the function filler, it has the effect that increases coating mobility and supplementary reinforcement, can reduce the quantity that the reinforcement was packed on the one hand, avoids the production of caking, and on the other hand can also make coating more smooth, and mobility is better, and viscosity is lower, the construction spraying of being convenient for. Experiments prove that the organosilicon coating prepared by the technical scheme has low viscosity (about 6000mPa & s), the single spraying thickness can reach 200 mu m, the construction is convenient, and the problem of poor adhesion among different coatings during multiple spraying in the prior art is solved.
Preferably, as an improvement, the functional filler is one or more of wollastonite, aluminum hydroxide and aluminum oxide, and the particle size of the wollastonite is 2000-3000 meshes.
In the technical scheme, the aluminum hydroxide and the aluminum oxide are commercially available finished products, the particle size and the form of the aluminum hydroxide and the aluminum oxide can meet the processing requirements of the coating, and the wollastonite needs to limit the particle size to 2000-3000 meshes so as to avoid the problem of granular sensation in the coating. When in actual use, I consider the multi-dimensional considerations of fluidity (viscosity), strength and spraying thickness of the coating and screen and optimize the functional filler. Wollastonite is cheap and easy to obtain, but has no obvious functionality, is usually used as a filler for reducing the cost and is not commonly used; while aluminum hydroxide and aluminum oxide are commonly used as flame retardant components in flame retardant materials. In the process of screening and optimizing the functional filler, the technical scheme unexpectedly discovers that the three materials can meet the requirements of flowability (viscosity), strength and the like of the paint, and later researches show that when the functional filler is wollastonite, aluminum hydroxide and aluminum oxide which are mixed for use, the overall viscosity of the organic silicon paint is reduced to the best effect, if the functional filler is replaced by other raw materials, the effect of increasing the flowability is unsatisfactory, and the problems of strong granular sensation and unsmooth texture are easy to occur.
Preferably, as an improvement, the base organic silicon polymer is a mixture of alpha, omega-dihydroxy polydiorganosiloxane and alpha, omega-dialkoxy polydiorganosiloxane, wherein the organic group is methyl, ethyl, propyl or phenyl, and the additive comprises 0.1-5 parts of pigment, 10-20 parts of crosslinking agent, 0.1-2 parts of catalyst, 0.1-5 parts of coupling agent and 15-35 parts of solvent.
In the technical scheme, the basic organic silicon polymer can endow the paint with chemical corrosion resistance, heat resistance, cold resistance and water resistance, and the basic performance of the paint can be more excellent by compounding alpha, omega-dihydroxy polydiorganosiloxane and alpha, omega-dialkoxy polydiorganosiloxane; the additive composition and the proportion are the preferable combination verified by experiments.
Preferably, as an improvement, the reinforcing filler is one or more of fumed silica, precipitated silica, matting powder and silica powder.
In the technical scheme, the white carbon black prepared by a gas phase method/precipitation method has the following molecular formula: SiO 2 2 White fluffy powder, porosity, small particle size, large specific surface area, no toxicity, no odor, no pollution, high temperature resistance and excellent stabilitySex, reinforcing property, thickening property and thixotropy; the flatting powder is a novel leather repairing flatting agent prepared from polyacrylamide and film forming materials, can be applied to coatings and paints to control the surface gloss of a coating in a balanced manner, increase the wear resistance and scratch resistance of the coating, remove moisture, deodorize, purify air, insulate sound, prevent water, insulate heat and have permeability; the silicon micropowder is a non-toxic, tasteless and pollution-free inorganic non-metallic material and has the excellent properties of good temperature resistance, acid and alkali corrosion resistance, high heat conductivity coefficient, high insulation, low expansion, stable chemical performance, high hardness and the like. The raw materials as reinforcing materials can form hydrogen bonds with the basic organic silicon polymer, so that on one hand, the excessive viscosity of the coating can be avoided, and on the other hand, the anti-sagging performance of the coating is improved after the coating is coated.
Preferably, as an improvement, the crosslinking agent is a polyfunctional reactive organosilane including one or more of methyltributanoxime silane, vinyltributoxime silane, dimethyldibutyloximino silane, methyltripropoximino silane, methyltriisobutyloxime silane, methyltriacetoxysilane, polymethyltriacetoxylsilane, polymethyltriisobutanoximino silane, and polymethyltriacetoxysilane.
In the technical scheme, the specific selection of the cross-linking agent can stably play a cross-linking role, chemical bonds are formed among linear molecules, a net structure with certain elasticity is further formed, and meanwhile, the temperature resistance and salt tolerance of the coating can be improved.
Preferably, as an improvement, the catalyst is one or more of stannous octoate, dibutyltin oxide, dibutyltin diacetate, dibutyltin dilaurate, isopropyl titanate, butyl titanate, diisopropoxydiacetoxytitanium, diisopropoxybisacetylacetonate titanium.
In the technical scheme, the catalyst can stably play a catalytic role in energy accumulation, and the application technology is mature.
Preferably, the first and second electrodes are, as a refinement, the coupling agent is one or more of gamma-aminopropyl trimethoxy silane, gamma-aminopropyl triethoxy silane, N-beta-aminoethyl-gamma-aminopropyl trimethoxy silane, N-beta-aminoethyl-gamma-aminopropyl triethoxy silane, N-beta-aminoethyl-gamma-aminopropyl methyl dimethoxy silane, gamma- (2, 3-epoxy propoxy) propyl trimethoxy silane, gamma- (2, 3-epoxy propoxy) propyl triethoxy silane, gamma-mercaptopropyl trimethoxy silane, gamma-mercaptopropyl triethoxy silane, isocyanatopropyl trimethoxy silane, isocyanatopropyl triethoxy silane, vinyltrimethoxy silane and vinyltriethoxy silane.
In the technical scheme, the inorganic group of the coupling agent can be combined with the reinforcing filler; the organophilic group can be combined with the basic organic silicon polymer, so that a target hydrogen bond is formed between the reinforcing filler and the basic organic silicon polymer, and the coupling agent can play an effective coupling role through experimental verification.
Preferably, as a modification, the solvent is one or more of organic solvents such as ethanol, ethyl acetate, 150# solvent oil, 200# solvent oil and the like.
In the technical scheme, the used solvent has better compatibility with the basic polymer and better fluidity and stability, and the specific selection of the solvent can be one or more of organic solvents such as ethanol, ethyl acetate, 150# solvent oil, 200# solvent oil and the like.
Preferably, as an improvement, the pretreatment method of the reinforcing filler is: stirring the basic organic silicon polymer and the coupling agent for 30min at normal temperature, adding the pre-dehydrated and dried reinforcing filler, mixing, and reacting for 1h at 60-70 ℃.
In the technical scheme, the pretreatment process of the reinforcing filler is an optimal treatment process verified by practice for a plurality of times, and the pretreatment effect is poor and is almost the same as the untreated effect due to too short stirring time, too low temperature and short reaction time; too long stirring, too high temperature and too long reaction time can lead the base polymer to react in advance, and the phenomena of dry glue or skinning can occur.
Preferably, as an improvement, the base silicone polymer is a multi-viscosity compounded mixture including 30 parts of the base silicone polymer having a viscosity of 1500mPa · s, 20 parts of the base silicone polymer having a viscosity of 10000mPa · s, 20 parts of the base silicone polymer having a viscosity of 20000mPa · s, and 15 parts of the base silicone polymer having a viscosity of 80000mPa · s.
In the technical scheme, stepped crosslinking can be generated when the base polymer is crosslinked by using a multi-viscosity ratio, so that the toughness and strength of a paint film are better.
Detailed Description
Examples 1 to 3 are examples of the present invention, comparative examples 1 to 5 are comparative examples of the present invention, and the raw material composition of each example and comparative example is shown in table 1, with the unit: g. wherein, in the pretreatment of whether the special process is adopted, the ' yes ' indicates that the ' basic organic silicon polymer and the coupling agent are adopted to be stirred and then added with the pre-dehydrated and dried reinforcing filler to be mixed when the reinforcing filler is added, and the ' no ' indicates that the reinforcing filler is directly added without pretreatment.
TABLE 1
The first embodiment will now be described in detail as an example:
the organic silicon coating with weather resistance, salt spray resistance and convenient construction comprises the following raw materials in parts by mass: 85 parts of alpha, omega-dihydroxy polydiorganosiloxane, 15 parts of alpha, omega-dialkoxy polydiorganosiloxane, 20 parts of fumed silica, 10 parts of precipitated silica, 30 parts of wollastonite, 30 parts of aluminum hydroxide, 20 parts of aluminum oxide, 1 part of pigment, 10 parts of methyl tributyrinoxime silane, 2 parts of vinyl tributyrinoxime silane, 4 parts of dimethyl dibutyrinoxime silane, 4 parts of coupling agent, 0.2 part of catalyst and 25 parts of solvent, wherein the coupling agent is gamma-aminopropyltrimethoxysilane, the catalyst is stannous octoate, and the solvent is 150# solvent oil.
A preparation method of a weather-resistant salt-fog-resistant convenient-to-construct organic silicon coating comprises the following steps:
step I: firstly, 85 parts of alpha, omega-dihydroxy polydiorganosiloxane, 15 parts of alpha, omega-dialkoxy polydiorganosiloxane and 4 parts of gamma-aminopropyltrimethoxysilane are uniformly stirred at normal temperature for 30min to obtain a system I;
step II: adding the dehydrated and dried reinforcing filler into the system I, wherein the reinforcing filler is 20 parts of fumed silica and 10 parts of precipitated silica, and reacting for 1h at 60 ℃ to obtain a system II;
step III: adding 30 parts of wollastonite, 30 parts of aluminum hydroxide, 20 parts of aluminum oxide and 1 part of pigment into the system II, and uniformly stirring to obtain a system III, wherein the wollastonite is granular and has a particle size of 2500 meshes;
step IV: adding 10 parts of methyl tributyl ketoxime silane, 2 parts of vinyl tributyroxime silane and 4 parts of dimethyl dibutyroxime silane into the system III, and stirring and uniformly mixing to obtain a system IV;
and V: and adding a catalyst into the system IV, uniformly stirring, finally adding a solvent, and uniformly stirring to obtain a finished product of the organic silicon coating.
The performance of the silicone coatings prepared in the above examples and comparative examples was tested, and each group was tested in triplicate, and the results averaged. The detection indexes, the detection standards and the detection results are shown in the following table: wherein the viscosity index is determined according to GB/T2794-2013 adhesive viscosity determination single-cylinder rotation viscometer method, the single coating thickness is determined by an electronic thickness gauge, the weather resistance and the ultraviolet resistance are determined according to GB/T3987-containing 2009 color paint and varnish coating artificial weathering exposure to fluorescent ultraviolet and water, and the salt spray resistance is determined according to GB/T1771-containing 2007 color paint and varnish neutral salt spray resistance.
TABLE 2
From the above results, it can be seen that: the embodiment 1 is the optimal mixture ratio, the viscosity is 6000+ mPa.s, and the single coating thickness can reach 208 mu m; comparative example 1 is different in that the reinforcing material was not pretreated, its single coating thickness was less than 100 μm, more spraying was required when used, and its ultraviolet resistance and salt spray resistance were both reduced; the difference of the comparative example 2 is that the proportion of the functional filler is changed, and the granular wollastonite is not added, so that the viscosity of the coating is increased; comparative example 3 replaces a portion of the solvent with the base polymer and increases the amount of filler to increase the viscosity, which is barely workable by airless spraying, but only about 110 μm per application. Comparative example 4, in which no reinforcing filler was added, had a reduced viscosity, a single spray thickness of only about 30 μm, and a significant decrease in uv resistance and salt spray resistance. Comparative example 5 had no functional filler added, so that its viscosity increased and the thickness decreased with a single spray. And tests prove that the composite use of the functional filler is better than that of the functional filler used alone, and when the functional filler is wollastonite, aluminum hydroxide and aluminum oxide which are compounded and used according to the mass ratio of 3:3:2, the viscosity of the coating is lowest, and the flowability of the coating is optimal.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, and these should also be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. The organic silicon coating with weather resistance, salt mist resistance and convenient construction is characterized by comprising the following raw materials in parts by mass: 100 parts of basic organic silicon polymer, 30-50 parts of reinforcing filler, 40-80 parts of functional filler and 25.3-67 parts of additive, wherein the reinforcing filler is pretreated before use, and the pretreatment method comprises the following steps: stirring the basic organic silicon polymer and the coupling agent for 30min at normal temperature, adding the pre-dehydrated and dried reinforcing filler, mixing, and reacting for 1h at 60-70 ℃; the functional filler is a mixture formed by compounding wollastonite, aluminum hydroxide and aluminum oxide according to the mass ratio of 3:3: 2; the basic organic silicon polymer is a mixture of alpha, omega-dihydroxy polydiorganosiloxane and alpha, omega-dialkoxy polydiorganosiloxane, wherein an organic group is methyl, ethyl, propyl or phenyl, and the additive comprises 0.1-5 parts of pigment, 10-20 parts of a cross-linking agent, 0.1-2 parts of a catalyst, 0.1-5 parts of a coupling agent and 15-35 parts of a solvent.
2. The organosilicon coating with weather resistance, salt spray resistance and convenient construction according to claim 1 is characterized in that: the particle size of the wollastonite is 2000-3000 meshes.
3. The organosilicon coating with weather resistance, salt fog resistance and convenient construction as claimed in claim 2, wherein: the reinforcing filler is one or more of fumed silica, precipitated silica, matting powder and silica micropowder.
4. The organosilicon coating with weather resistance, salt fog resistance and convenient construction according to claim 3, wherein: the cross-linking agent is multifunctional reactive organosilane and comprises one or more of methyl tributyl ketoxime silane, vinyl tributyl ketoxime silane, dimethyl diacetyl ketoxime silane, methyl triacetoxy silane, methyl triisobutanone ketoxime silane, methyl triacetoxy silane, polymethyl triisobutanone ketoxime silane and polymethyl triacetoxy silane.
5. The organosilicon coating of claim 4, which is weather resistant, salt fog resistant and easy to apply, wherein: the catalyst is one or more of stannous octoate, dibutyltin oxide, dibutyltin diacetate, dibutyltin dilaurate, isopropyl titanate, butyl titanate, diisopropoxy diacetoxy titanium and diisopropoxy diacetone titanium.
6. The silicone coating of claim 5, wherein the silicone coating is weather resistant, salt spray resistant and easy to apply: the coupling agent is one or more of gamma-aminopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane, N-beta-aminoethyl-gamma-aminopropyltrimethoxysilane, N-beta-aminoethyl-gamma-aminopropyltriethoxysilane, N-beta-aminoethyl-gamma-aminopropylmethyldimethoxysilane, gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane, gamma- (2, 3-epoxypropoxy) propyltriethoxysilane, gamma-mercaptopropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, isocyanatopropyltrimethoxysilane, isocyanatopropyltriethoxysilane, vinyltrimethoxysilane and vinyltriethoxysilane.
7. The weather-resistant, salt-fog-resistant and construction-convenient silicone coating according to claim 6, wherein: the solvent is one or more of organic solvents such as ethanol, ethyl acetate, No. 150 solvent oil, No. 200 solvent oil and the like.
8. The weather-resistant, salt-fog-resistant and construction-convenient silicone coating according to claim 7, wherein: the basic organic silicon polymer is a multi-viscosity compounded mixture and comprises 30 parts of a basic organic silicon polymer with the viscosity of 1500mPa & s, 20 parts of a basic organic silicon polymer with the viscosity of 10000mPa & s, 20 parts of a basic organic silicon polymer with the viscosity of 20000mPa & s and 15 parts of a basic organic silicon polymer with the viscosity of 80000mPa & s.
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| CN114539914A (en) * | 2022-01-27 | 2022-05-27 | 广东硅甲新材料科技有限公司 | Organic silicon coating capable of being coated on polyurethane synthetic leather and using method thereof |
| CN116933689B (en) * | 2023-07-25 | 2024-01-30 | 水利部交通运输部国家能源局南京水利科学研究院 | Epoxy cement protective coating anti-sagging evaluation method based on rheological parameters |
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| CN101440256A (en) * | 2007-10-29 | 2009-05-27 | 信越化学工业株式会社 | Antifouling condensation curing organopolysiloxane composition, making method, and underwater structure |
| CN108148501A (en) * | 2018-02-02 | 2018-06-12 | 浙江科思达新材料有限公司 | Organosilicon anti-drag paint composition and application |
| CN108329831A (en) * | 2018-02-02 | 2018-07-27 | 浙江科思达新材料有限公司 | A kind of antifouling low-surface-energy polysiloxane composition and application |
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