CN108485359B - Paint for preventing birds and moss of power equipment and preparation method thereof - Google Patents
Paint for preventing birds and moss of power equipment and preparation method thereof Download PDFInfo
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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
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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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
- C09D5/18—Fireproof paints including high temperature resistant 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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- 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
- C09D7/63—Additives non-macromolecular organic
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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
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
A paint for preventing birds and moss of electric power equipment and a preparation method thereof, the paint comprises material components and solvent components; the material comprises the following components: 50-55% of fluorine modified silicone resin, 1-4% of antibacterial bacteriostatic agent, 25-30% of nano additive filler, 7-9% of inorganic pigment, 6% of flame retardant, 1% of coupling agent, 1-2% of crosslinking agent, 0.1% of catalyst and 1-2% of bird repellent agent; the addition amount of the solvent components is 1.2-1.5 times of the total mass of the material components; the antibacterial bacteriostatic agent is nano TiO2And nano ZnO; the nano additive filler comprises fumed silica; preparing the coating through the steps of dispersing, gluing, cooling, grinding and dispersing; the fumed silica has a slow release effect on the bird repellent agent which is absorbed in the coating for a long time, so that the durability of bird repelling is improved; the fluorine modified silicone resin disclosed by the invention has the toughness and heat resistance of the silicone resin, and also has the smoothness and oil resistance of the fluorine modified resin, so that the effect of preventing birds and moss is achieved.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a coating for preventing birds and moss of electric power equipment and a preparation method thereof.
Background
The current development process along with industrialization accelerates, and the environment worsens day by day, and power grid equipment receives its influence and takes place the pollution flashover accident more and more easily, causes the large tracts of land and cuts off power, influences the safe operation of electric wire netting, and outdoor antifouling sudden strain of a muscle is the important work of guaranteeing electric wire netting safety. Factors causing the power grid pollution flashover are complex, and include the pollution resistance of the equipment, local meteorological conditions, environmental pollution conditions, field operation management level and the like. The main factor of pollution flashover is that the surface of the insulator is polluted, the pollution sources are many, such as smoke dust, sand grains, salt grains, metal powder, seawater, rainwater, bird droppings and the like, large-area moss can grow in a humid place, and the pollutants can adsorb moisture and inorganic salt in the air under the humid air, so that a conductive layer is formed on the surface of the insulator, and flashover is easy to occur under the action of an electric field. In the isothermal and humid areas of China, rain and fog, humid air, moss and algae plants grow very easily all the year round, and the surfaces of the power equipment are easy to grow mildew, moss and the like in the environment for a long time, so that the appearance attractiveness and the service life of the power equipment are influenced. A large amount of moss can grow on the surface of the insulator coated with the anti-pollution flashover coating along with the time. And a large amount of moss grows on the surface of the insulator sprayed with the anti-pollution flashover coating, so that the anti-pollution flashover performance of the surface of the anti-pollution flashover coating can be damaged, and as moss plants easily absorb moisture and inorganic salt in the air, a conductive layer is formed on the surface of the moss plants, the insulation strength of power equipment is further damaged, so that accidents are easily caused in long-term rain, fog and humid weather. Moreover, birds also threaten the surface coating of the insulator, and the coating is easy to be damaged by bird pecking, so that the insulating performance of electrical equipment is influenced.
Disclosure of Invention
The invention aims to provide a coating for preventing birds and against moss of electric power equipment, and the coating has excellent hydrophobic insulation, anti-moss performance and bird prevention performance.
The invention aims to provide a preparation method of a paint for preventing birds and preventing moss of power equipment, which can prepare the paint with excellent hydrophobic insulation, moss prevention and bird prevention performance.
In order to achieve the purpose, the invention adopts the following technical scheme:
a coating for preventing birds and moss of electric equipment comprises material components and solvent components; the material components comprise the following components in percentage by mass: 50-55% of fluorine modified silicone resin, 1-4% of antibacterial bacteriostatic agent, 25-30% of nano additive filler, 7-9% of inorganic pigment, 6% of flame retardant, 1% of coupling agent, 1-2% of crosslinking agent, 0.1% of catalyst and 1-2% of bird repellent agent; the addition amount of the solvent components is 1.2-1.5 times of the total mass of the material components;
the antibacterial bacteriostatic agent is nano TiO2And nano ZnO; the nano additive filler comprises fumed silica.
Still further, the flame retardant is one or a combination of aluminum hydroxide and a platinum-containing flame retardant.
Still further, the coupling agent is a ketoxime type coupling agent.
Still further, the ketoxime type coupling agent is methyltributanoxime silane.
More specifically, the catalyst is a platinum catalyst.
Stated further, the nano-additive filler further comprises: at least one of nano silica, magnesia and alumina.
Further, the solvent component is an aromatic hydrocarbon complex solvent.
Further, the preparation method of the coating for preventing birds and moss of the power equipment comprises the following steps:
(1) adding the fluorine modified silicon resin and the nano additive filler into a dispersion machine, and mechanically stirring and dispersing for 20-30min to uniformly mix the fluorine modified silicon resin and the nano additive filler to obtain a dispersed mixed material;
(2) placing the dispersed mixed material in the step (1) in a reaction container, heating to 140 ℃, and dehydrating for 2 hours in a vacuum environment;
(3) naturally cooling the mixed material in the reaction container in the step (2) for 3-4 hours in a vacuum state;
(4) grinding inorganic pigment until the fineness of the material reaches 20-25 μm; adding the ground inorganic pigment into the mixed material cooled in the step (3), grinding again until the fineness of the material reaches 20-25 mu m, and cooling to room temperature to obtain a ground mixed material;
(5) adding the mixed material ground in the step (4) into a dispersion machine, wherein the adding of the materials comprises the following steps: a cross-linking agent, a silane coupling agent, a catalyst, a solvent and a bird repellent agent; dispersing at high speed for at least 30min under a vacuum environment until all materials are uniformly dispersed, and then preparing the coating for the power equipment.
The invention has the beneficial effects that:
1. the fumed silica has a large specific surface area, has a good adsorption effect, has a certain effect of permanently adsorbing the bird repellent in the coating, has a slow release effect, and improves the durability of bird repelling;
2. the fluorine modified silicone resin has the toughness and heat resistance of the silicone resin, and also has the smoothness and oil resistance of the fluorine modified resin, so that animal excrement or moss is difficult to adsorb on the surface of a coating layer;
3. the fumed silica is added into a coating system as a filler, and the fumed silica can be filled between molecular chains as micromolecules, so that the acting force between the molecular chains is reduced, and the toughness of a cured product is improved.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
A coating for preventing birds and moss of electric equipment comprises material components and solvent components; the material components comprise the following components in percentage by mass: 50-55% of fluorine modified silicone resin, 1-4% of antibacterial bacteriostatic agent, 25-30% of nano additive filler, 7-9% of inorganic pigment, 6% of flame retardant, 1% of coupling agent, 1-2% of crosslinking agent, 0.1% of catalyst and 1-2% of bird repellent agent; the addition amount of the solvent components is 1.2-1.5 times of the total mass of the material components;
the antibacterial bacteriostatic agent is nano TiO2And nano ZnO; the nano additive filler comprises fumed silica.
Furthermore, in the existing power equipment, flying animals such as swallows, sparrows, hawks and bats are difficult to avoid to park, and the excrement is often left on the power equipment or the electric elemenes, and the excrement often causes damage to the power equipment, such as flashover of the power equipment, reduction of service life, growth of mold or moss and the like; meanwhile, the pecking and biting actions of the flying animals enable electric equipment or an electric threshold to be more easily damaged; the animal excrement is easy to breed bacteria microorganisms; in addition, the operating environment of the power equipment, including the humidity and the temperature, is suitable for the growth and the propagation of the moss vegetation. The moss is propagated and attached to the surface of the power equipment from the air through spore propagation, and finally grows on the surface of the power equipment through spore cell division propagation in a humid environment, belongs to algae, is suitable for temperature, humidity, illumination and ventilation environments, and is most easy to breed and propagate.
The invention provides a coating with multiple defense mechanisms:
(1) the fluorine modified silicone resin is used as the main body resin and is the most main film forming substance, and the silicone resin is the silicone resin, has good toughness and heat resistance, and the performance in the aspect of impact strength can be completely suitable for protecting power equipment or an electric apparatus from pecking and biting; the fluorine modified resin has smoothness and oil resistance, so that some oil stains or impurities are difficult to adsorb on the solidified surface of the fluorine modified resin, and when the fluorine modified resin is used for electric power equipment or an electric power line, liquid drops, moss and animal wastes are difficult to adsorb on the surface, so that the fluorine modified resin can be blown away by wind or fall naturally; the fluorine modified silicone resin of the invention has toughness and heat resistance of the silicone resin, and smoothness and oil resistance of the fluorine modified resin.
(2) Inorganic antibacterial agents widely used in the prior art mainly comprise silver, and when silver ions contact bacterial cells, the silver ions react with sulfydryl (-SH) of enzyme protein in cell organisms to solidify the protein and inactivate the bacteria. But through Ag+Killed bacteria can release a toxic substance) -endotoxin, which can cause diseases such as typhoid fever and cholera, and Ag+Can only kill bacteria and can not decompose endotoxin; in addition, the problem of controllable slow release of silver ions is still difficult to realize at present; and is easy to oxidize into Ag due to frequent contact with air2And O. The invention also adds nano TiO2And nano ZnO; TiO 22Ultraviolet light excites electrons, and water molecules and oxygen molecules on the surface are oxidized into active free radicals and ions to degrade organic matters, namely nano TiO2When light irradiates on TiO2When the surface is coated, it will absorb the near ultraviolet light wave with lambda less than or equal to 387.5nm, and the electrons in the valence band will be excited to the conduction band to form electron-hole pair. The holes have high reactivity and can adsorb H on the surface in a water and air system2The O and-OH ions react to form hydroxyl radicals having a strong oxidizing propertyRadical (. OH) and active superoxide radical (. O)2) The microbial inoculum can penetrate cell walls of bacterial cells, destroy cell membranous substances and prevent the transmission of film-forming substances, thereby effectively killing bacteria. Furthermore, nano TiO2As an inorganic antibacterial material, the antibacterial material has the advantages of no toxicity, no odor, no irritation, good thermal stability, no combustion and the like. Adding nano TiO2The growth of mould on the surface of the coating is obviously inhibited.
The nano ZnO is an n-type semiconductor compound, the electronic structure of the nano ZnO is composed of a valence electron band and an empty orbit, and the nano ZnO can absorb short-wave radiation with energy higher than the forbidden bandwidth in water and air under the irradiation of sunlight, particularly ultraviolet rays, generate electron transition, decompose freely moving negatively charged electrons automatically, and leave positively charged holes, and the holes can activate oxygen in the air to change the oxygen into active oxygen, have extremely strong chemical activity, and can perform oxidation reaction (including organic matters of bacteria) with most organic matters, thereby killing most germs and viruses. According to the photocatalysis theory, the zinc oxide plays the role of a photocatalyst and can be permanently used, so the nano zinc oxide has very excellent antibacterial performance.
Nano TiO 22And ZnO is added into the basic coating to prepare the antibacterial and mildewproof coating, and the prepared coating has excellent mildewproof effect.
(3) The invention also adds a bird repellent and fumed silica, and the bird repellent is used for achieving the purpose of repelling flying animals; the bird repellent slowly volatilizes aromatic odor capable of interfering the nervous system of the birds over time to make the birds generate aversion, so that the bird repellent is far away from a target area of a protected object to achieve a good driving effect; the fumed silica has a large specific surface area, has a good adsorption effect, has a certain effect of permanently adsorbing the bird repellent in the coating, plays a role in slow release, and improves the durability of bird repelling; meanwhile, the fumed silica is used as a filler and added into the coating system, and the fumed silica can be used as small molecules and filled between molecular chains, so that the acting force between the molecular chains is reduced, and the toughness of a cured product is improved.
Wherein the bird repellent not only repels birds, but also repels insects such as grasshoppers, bees and termites; other flying animals such as bats are common.
After comprehensive mixing modification, the developed new coating has excellent performances of hydrophobic insulation, moss prevention, bird prevention and the like, has better comprehensive performance than the old coating, can obtain multiple defense effects at one time, and obviously improves the reliability and safety of the operation of electrical equipment.
In summary, the final effect is: the pecking and biting behaviors of animals are difficult to damage the coating; the excrement remaining on the animals cannot be adsorbed on the cured coating film and is blown away by wind or falls naturally.
Still further, the flame retardant is one or a combination of aluminum hydroxide and a platinum-containing flame retardant.
Furthermore, common flame retardants may have halogen components that are harmful to life, and the halogen moieties may decompose and be exposed on the surface of the film during use; since the pecking action of birds causes halogen-containing components exposed on the surface of the birds to be absorbed into the bodies of the birds, the organs in the bodies of the birds are easily damaged. Therefore, the invention uses non-toxic and harmless aluminum hydroxide and platinum-containing flame retardant to protect the product on the premise of not damaging animals.
Still further, the coupling agent is a ketoxime type coupling agent.
Still further, the ketoxime type coupling agent is methyltributanoxime silane.
More specifically, the catalyst is a platinum catalyst.
Stated further, the nano-additive filler further comprises: at least one of nano silica, magnesia and alumina.
Has the advantages that:
the addition of the nano silicon dioxide, the magnesium oxide and the aluminum oxide increases the volume of the final product and saves the cost; meanwhile, the nano silicon dioxide, the magnesium oxide and the aluminum oxide can be filled between molecular chains as small molecules, so that the acting force between the molecular chains is reduced, and the mechanical strength of a cured material is improved;
further, the solvent component is an aromatic hydrocarbon complex solvent.
Further, the preparation method of the coating for preventing birds and moss of the power equipment comprises the following steps:
(1) adding the fluorine modified silicon resin and the nano additive filler into a dispersion machine, and mechanically stirring and dispersing for 20-30min to uniformly mix the fluorine modified silicon resin and the nano additive filler to obtain a dispersed mixed material;
(2) placing the dispersed mixed material in the step (1) in a reaction container, heating to 140 ℃, and dehydrating for 2 hours in a vacuum environment;
(3) naturally cooling the mixed material in the reaction container in the step (2) for 3-4 hours in a vacuum state;
(4) grinding inorganic pigment until the fineness of the material reaches 20-25 μm; adding the ground inorganic pigment into the mixed material cooled in the step (3), grinding again until the fineness of the material reaches 20-25 mu m, and cooling to room temperature to obtain a ground mixed material;
(5) adding the mixed material ground in the step (4) into a dispersion machine, wherein the adding of the materials comprises the following steps: a cross-linking agent, a silane coupling agent, a catalyst, a solvent and a bird repellent agent; dispersing at high speed for at least 30min under a vacuum environment until all materials are uniformly dispersed, and then preparing the coating for the power equipment.
Further, fluorine-modified silicone resins and nano-additives are inevitably exposed to water during synthesis or exposure to air, and the residual water may affect the curing process such as insufficient crosslinking, and ultimately affect various properties of the product; in the step (2), the aim is to remove water from the fluorine modified silicon resin and the nano additive, and the mixed material is completely dehydrated under the condition of vacuumizing when the temperature reaches 140 ℃.
Grinding the inorganic pigment, and grinding the inorganic pigment and the cooled mixed material in the step (3) together in the step (4); the first step aims to grind the inorganic pigment to the fineness of 20-25 mu; and the second step is to grind the cooled mixed material in the step (3) to the fineness of 20-25 μm, and simultaneously continuously grind the inorganic pigment to the finer fineness.
Example 1:
the coating is prepared by selecting the fluorine modified silicone resin and the common silicone resin used in the experiment according to the following steps, and a group of coatings of power equipment in the prior art are additionally added to respectively perform performance tests on the fluorine modified silicone resin, the common silicone resin and the coating.
(1) Adding 50% of fluorine modified silicon resin (or common silicon resin) and 30% of nano additive filler into a dispersion machine, mechanically stirring and dispersing for 20-30min, and uniformly mixing to obtain a dispersed mixed material;
(2) placing the dispersed mixed material in the step (1) in a reaction container, heating to 140 ℃, and dehydrating for 2 hours in a vacuum environment;
(3) naturally cooling the mixed material in the reaction container in the step (2) for 3-4 hours in a vacuum state;
(4) grinding 9% of inorganic pigment for at least 2 times until the fineness of the material reaches 20-25 μm; adding the ground inorganic pigment into the mixed material cooled in the step (3), grinding for at least 2 times again until the fineness of the material reaches 20-25 mu m, and cooling to room temperature to obtain a ground mixed material;
(5) adding the mixed material ground in the step (4) into a dispersion machine, wherein the adding of the materials comprises the following steps: 2% of epoxy cross-linking agent, 1% of ketoxime type coupling agent, 0.1% of platinum catalyst, 2% of bird repellent agent, 3% of nano silicon dioxide flame retardant, 3% of magnesium oxide flame retardant and 1.2 times of aromatic hydrocarbon composite solvent; and dispersing at high speed for at least 30min in a vacuum environment until all materials are uniformly dispersed, thus preparing the coating for the power equipment, namely the fluorine-containing modified silicone resin coating and the common silicone resin coating.
(6) Coating the fluorine-containing modified silicone resin coating, the common silicone resin coating and the existing coating on tinplate sheets with the same size by the same coating method, and curing for the same time
And (3) performance measurement:
(1) thermal stability: placing fluorine-containing modified silicone resin coating, common silicone resin coating and tinplate with the existing coating in an oven at 90 deg.C and 140 deg.C for 60 min; the samples were taken out and observed for film coating conditions: the phenomenon of large-area scorching or film falling is unqualified.
(2) Corrosion resistance: the 2/3 areas of the tinplate pieces containing the fluorine-containing modified silicone resin coating, the common silicone resin coating and the existing coating are soaked by a sodium chloride solution with the mass fraction of 3 percent, the tinplate pieces are taken out after 72 hours, the change condition of the coating is checked, and the condition of the coating is observed every 6 hours within 48 hours, so that the phenomena of light loss, color change, bubbles, spots, falling off and the like are unqualified.
(3) Gasoline resistance: the color change, the light loss, the whitening, the foaming, the softening, the falling and the like are unqualified according to the GB/T1734-93 gasoline resistance test method of paint films.
(4) Stain resistance: after the test panel was exposed to the atmosphere for 36 hours, the difference in reflectance before and after the exposure of the paint film was measured by a color difference meter, and it was considered that the difference was due to contamination, and the smaller the difference, the higher the contamination resistance.
TABLE 1 comparison of Properties of different host resins
And (4) conclusion:
(1) the silicone resin has thermal stability, but the thermal stability is not reduced after the fluorine modification, so that the silicone resin can be combined with the shell protection of the power equipment which generates heat during working by using the invention.
(2) The corrosion resistance of the invention is superior to the prior art, and the invention mainly carries out material grinding twice in the preparation process, and each time is not less than 2 times, so the material fineness of the invention is small, the reaction efficiency of the material is improved, namely the contact possibility with other components is increased, and the reaction is more uniform.
(3) The fluorine modified silicone resin coating has unique oil resistance due to the fluorine group, so the gasoline resistance of the invention is superior to other comparison groups.
(4) The present invention has a superior contamination resistance to other comparative groups because it has a fluorine group, making it difficult for other molecular chains or molecules to adsorb on the surface of the host resin.
Example 2
TABLE 2 compounding ratios of examples A1 to A6
Adding Table 2 according to the following steps
(1) Modifying fluorine with silicone resin (or common silicone resin), ZnO, TiO2Adding the fumed silica into a dispersion machine, mechanically stirring and dispersing for 20-30min to uniformly mix the fumed silica and the fumed silica to obtain a dispersed mixed material;
(2) placing the dispersed mixed material in the step (1) in a reaction container, heating to 140 ℃, and dehydrating for 2 hours in a vacuum environment;
(3) naturally cooling the mixed material in the reaction container in the step (2) for 3-4 hours in a vacuum state;
(4) grinding the inorganic pigment for at least 2 times until the fineness of the material reaches 20-25 μm; adding the ground inorganic pigment into the mixed material cooled in the step (3), grinding for at least 2 times again until the fineness of the material reaches 20-25 mu m, and cooling to room temperature to obtain a ground mixed material;
(5) adding the mixed material ground in the step (4) into a dispersion machine, wherein the adding of the materials comprises the following steps: epoxy cross-linking agent, ketoxime type coupling agent, platinum catalyst, bird repellent agent, magnesia flame retardant, filler and aromatic hydrocarbon composite solvent; and dispersing at high speed for at least 30min in a vacuum environment until all materials are uniformly dispersed, thus preparing the coating for the power equipment, namely the fluorine-containing modified silicone resin coating and the common silicone resin coating.
(6) Coating the fluorine-containing modified silicone resin coating, the common silicone resin coating and the existing coating on tinplate sheets with the same size by the same coating method, and curing for the same time
Wherein the fillers in table 2 do not have an effect on mold resistance; the amount of catalyst is small and negligible.
The mildew resistance was measured for the above-mentioned examples A1 to A6:
the coatings are graded as 0 grade, 1 grade, 2 grade, 3 grade and 4 grade according to GB/T1741-1979 mildew resistance test of paint films, wherein the 0 grade is the best and the 4 grade is the worst; repeat 5 times.
TABLE 3 mildew resistance of examples A1 to A6
And (4) conclusion:
(1) as can be seen from the comparison of examples A1, A2 and A3, the present invention has mildew resistance due to 1-4% of antibacterial bacteriostatic agent.
(2) By comparing examples A1 and A3, it can be seen that TiO2And ZnO has antibacterial and bacteriostatic effects.
(3) It can be seen from comparative examples A1, A4 and A6 that the nano additive filler is fumed silica, and the fumed silica has a fine particle structure and a larger specific surface area; therefore, the bird repellent can be stored in the structure of the tiny particles, has slow release effect and improves the durability of antibiosis and bacteriostasis, and the embodiment A1 has better mildew resistance.
(4) It can be seen from the comparison of examples A3 and A6 that the bird repellent has antibacterial and bacteriostatic effects in addition to its bird repellent effect.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (7)
1. A method for preparing a bird-proof moss paint with a slow-release bird-proof function for power equipment is disclosed, which is characterized in thatCharacterized in that the raw material comprises material components and solvent components; the material comprises the following components in percentage by mass: 50-55% of fluorine modified silicone resin, 1-4% of antibacterial bacteriostatic agent, 25-30% of nano additive filler, 7-9% of inorganic pigment, 6% of flame retardant, 1% of silane coupling agent, 1-2% of crosslinking agent, 0.1% of catalyst and 1-2% of bird repellent agent; the addition amount of the solvent component is 1.2-1.5 times of the total mass of the material components; the antibacterial bacteriostatic agent is nano TiO2And nano ZnO; the nano additive filler comprises fumed silica; the fumed silica is used for adsorbing the bird repellent; the preparation method comprises the following steps:
(1) adding the fluorine modified silicon resin and the nano additive filler into a dispersion machine, and mechanically stirring and dispersing for 20-30min to uniformly mix the fluorine modified silicon resin and the nano additive filler to obtain a dispersed mixed material;
(2) placing the dispersed mixed material in the step (1) in a reaction container, heating to 140 ℃, and dehydrating for 2 hours in a vacuum environment;
(3) naturally cooling the mixed material in the reaction container in the step (2) for 3-4 hours in a vacuum state;
(4) grinding inorganic pigment until the fineness of the material reaches 20-25 μm; adding the ground inorganic pigment into the mixed material cooled in the step (3), grinding again until the fineness of the material reaches 20-25 mu m, and cooling to room temperature to obtain a ground mixed material;
(5) adding the mixed material ground in the step (4) into a dispersion machine, wherein the adding of the materials comprises the following steps: a cross-linking agent, a silane coupling agent, a catalyst, a solvent and a bird repellent agent; and (3) dispersing at high speed for at least 30min in a vacuum environment until all materials are uniformly dispersed, thus obtaining the coating.
2. The method of claim 1, wherein the flame retardant is one or a combination of aluminum hydroxide and a platinum-containing flame retardant.
3. The method according to claim 1, wherein the silane coupling agent is a ketoxime type silane coupling agent.
4. The method according to claim 3, wherein the ketoxime type silane coupling agent is methyltributanoxime silane.
5. The method of claim 1, wherein the catalyst is a platinum catalyst.
6. The method of claim 1, wherein the nano-additive filler further comprises: at least one of nano silica, magnesia and alumina.
7. The method according to claim 1, wherein the solvent component is an aromatic hydrocarbon complex solvent.
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| CN109280487B (en) * | 2018-09-20 | 2021-04-20 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Algae-inhibiting antibacterial insulating paint and production process thereof |
| CN110283485A (en) * | 2019-07-12 | 2019-09-27 | 海博曼材料科技(苏州)有限公司 | A kind of protective agent and its preparation method and application |
| CN112493246B (en) * | 2020-11-23 | 2021-09-14 | 广东电网有限责任公司电力科学研究院 | Molecular sieve grafted with ionic liquid, preparation method of molecular sieve, moss-preventing coating and preparation method of moss-preventing coating |
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| JP2003072012A (en) * | 2001-08-31 | 2003-03-12 | Toyo Ink Mfg Co Ltd | Sheet |
| CN101338159B (en) * | 2008-08-20 | 2010-09-08 | 西安秦平电力科技发展有限公司 | Nanometer enhanced type fluorosilicone rubber long-acting anti-fouling flashing coating |
| CN101613548B (en) * | 2009-08-07 | 2011-05-04 | 河南省阳光防腐涂装有限公司 | Multifunctional bird nesting resistance anticorrosion coating |
| CN101845272A (en) * | 2010-03-26 | 2010-09-29 | 福建瑞森化工有限公司 | Photocatalytic self-cleaning coating and preparation method thereof |
| CN103468132B (en) * | 2013-09-25 | 2018-07-10 | 北京国电富通科技发展有限责任公司 | A kind of Moss-prevention anti-contamination-fcoatings coatings and preparation method thereof |
| CN104789123B (en) * | 2015-04-30 | 2017-08-08 | 国网四川省电力公司电力科学研究院 | One kind suppresses Chlorococcum growth one-component antifouling flush paint and preparation method thereof |
| CN106675398B (en) * | 2016-12-08 | 2019-01-25 | 国家电网公司 | A kind of improvement long-acting super-hydrophobic anti-pollution flashover coating of 3 type slow-releases |
| CN107446498B (en) * | 2017-08-31 | 2020-01-14 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Anti-icing insulating coating and preparation method thereof |
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