CN110591531A - Method for preparing corrosion-resistant flame-retardant coating on surface of street lamp pole - Google Patents
Method for preparing corrosion-resistant flame-retardant coating on surface of street lamp pole 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C08K2003/2255—Oxides; Hydroxides of metals of molybdenum
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention discloses a method for preparing a corrosion-resistant flame-retardant coating on the surface of a street lamp post, which comprises the steps of adding sodium hexametaphosphate into silicon-aluminum composite coated titanium dioxide slurry, stirring and dispersing in a water bath, adding zirconium oxychloride and cerium nitrate, stirring uniformly, reacting at constant temperature, carrying out suction filtration, washing with water, drying and crushing to obtain zirconium-cerium-silicon-aluminum composite coated titanium dioxide; adding organic modified montmorillonite and molybdenum trioxide into a glacial acetic acid aqueous solution of chitosan, stirring in a water bath for reaction, carrying out suction filtration, washing and drying to obtain a composite slow-release flame retardant; adding a modifier, a chain extender, a cross-linking agent and a defoaming agent into a polyurethane prepolymer, continuously stirring for reaction to obtain an organic silicon modified polyurethane coating, adding acetone and stirring to obtain a component A, adding reduced graphene into the acetone, stirring, ultrasonically dispersing, adding titanium dioxide and a composite slow-release flame retardant coated with a zirconium-cerium-silicon-aluminum composite film into the component A, uniformly mixing to obtain a weather-resistant, anti-corrosion and flame-retardant composite coating, uniformly coating the surface of a street lamp pole with the composite coating, and curing and drying at room temperature.
Description
Technical Field
The invention belongs to the field of street lamp poles, and particularly relates to a method for preparing a corrosion-resistant flame-retardant coating on the surface of a street lamp pole.
Background
Polyurethane coating is often used as heavy-duty anticorrosion system due to excellent physical and mechanical properties and corrosion resistance of the polyurethane coating
The pure polyurethane resin has unsatisfactory heat resistance and water resistance, and the application of the pure polyurethane resin is limited. Silicone
The resin has the characteristics of excellent hydrophobicity, high and low temperature resistance, weather resistance, physiological inertia and the like, and utilizes organic matters
The silicon modifies the polyurethane resin to prepare the organic silicon modified polyurethane resin with excellent comprehensive performance. Stone (stone)
The graphene is a new two-dimensional carbon nano material, and the lamellar structure can effectively prevent water and corrosive ions from permeating
Meanwhile, the graphene has excellent conductivity, and when corrosion occurs, electrons lost by anode reaction iron can be generated
Rapid transfer to the coating surface by graphene thus allowing Fe3+With OH-Isolated from corrosion
The process is carried out. Therefore, the graphene is added into the composite coating, so that the corrosion resistance of the coating can be effectively enhanced.
Street lamps refer to lamps providing a road with an illumination function, and generally to lamps in a road illumination range in traffic illumination. Street lamps are widely used in various places requiring illumination. The street lamp is composed of a lamp, an electric wire, a light source, a lamp post, a lamp arm, a flange plate and a basic embedded part into a whole.
However, the salt spray corrosion resistance and the flame retardant property of the commercially available street lamp pole coating are insufficient, the corrosion-resistant flame retardant coating is prepared by adding the titanium dioxide and the composite slow-release flame retardant coated with the zirconium cerium-silicon aluminum composite into the polyurethane prepolymer, and then the corrosion-resistant flame retardant coating is prepared on the surface of the street lamp pole by adopting a uniform coating method, so that the obtained street lamp pole coating has excellent corrosion resistance and flame retardant property.
Disclosure of Invention
The invention aims to solve the existing problems and provides a method for preparing a corrosion-resistant flame-retardant coating on the surface of a street lamp pole.
The invention is realized by the following technical scheme:
a method for preparing a corrosion-resistant flame-retardant coating on the surface of a street lamp pole comprises the following steps of:
(1) and (3) compound coating of titanium dioxide:
adding 1-2 parts of sodium hexametaphosphate into 10-20 parts of silicon-aluminum composite coated titanium dioxide slurry, stirring and dispersing in a water bath at 60-65 ℃, adding 1-2 parts of zirconium oxychloride and 1-2 parts of cerium nitrate, stirring uniformly, adjusting the pH to 8-10 by using sodium hydroxide, reacting for 1-2h at constant temperature, performing suction filtration and water washing for 3-5 times, performing air drying at 140-150 ℃, and crushing to obtain zirconium-cerium-silicon-aluminum composite coated titanium dioxide;
firstly, sodium silicate and aluminum sulfate are used for carrying out coating curing treatment on titanium dioxide to obtain silicon-aluminum composite coated titanium dioxide, then zirconium oxychloride and cerium nitrate are used for coating the titanium dioxide to obtain zirconium-cerium-silicon-aluminum composite coated titanium dioxide, a continuous, uniform and compact composite film is coated on the surface of the titanium dioxide, and the composite coating can improve the weather resistance of the titanium dioxide;
(2) preparing a composite slow-release flame retardant:
adding 5-10 parts of glacial acetic acid aqueous solution into 0.1-0.2 part of chitosan, fully stirring and dissolving to prepare a chitosan solution, adding 1-2 parts of organic modified montmorillonite and 1-2 parts of molybdenum trioxide, stirring and reacting in a water bath at 60-65 ℃ for 2-4h, performing suction filtration, washing, and drying at 80-85 ℃ to obtain the composite slow-release flame retardant;
firstly, cetyl ammonium bromide is utilized to carry out intercalation modification on montmorillonite, cetyl ammonium bromide organic groups enter interlayer structures of the montmorillonite and exchange interlayer cations with the interlayer structures, the interlayer spacing is successfully enlarged by intercalation, and the montmorillonite exists in an intercalation-stripping mode; the chitosan-montmorillonite-molybdenum trioxide composite material is prepared by carrying out intercalation composite reaction on the organic modified montmorillonite and molybdenum trioxide serving as raw materials and chitosan, wherein chitosan molecular intercalation enters interlamination of the montmorillonite, so that a better physical crosslinking effect is achieved, the chitosan molecular intercalation composite material, the montmorillonite and the molybdenum trioxide are compounded and used to show a better synergistic effect, the thermal decomposition stability of the composite slow-release flame retardant is high, the residual carbon amount is increased, and the composite slow-release flame retardant has a good slow-release flame retardant effect and a good smoke suppression effect;
(3) preparing the weather-resistant, anti-corrosion and flame-retardant coating:
adding 0.9-1.8 parts of modifier, 0.3-0.6 part of chain extender, 0.2-0.4 part of cross-linking agent and 0.1-0.2 part of defoaming agent into 15-30 parts of polyurethane prepolymer, continuously stirring, reacting at 60-70 ℃ for 1-2 hours, cooling to obtain an organic silicon modified polyurethane coating, adding 20-30 parts of acetone into the organic silicon modified polyurethane coating, stirring to obtain a component A, adding 0.1-0.2 part of reduced graphene into 10-20 parts of acetone, stirring, ultrasonically dispersing, adding the mixture into the component A together with the materials obtained in the steps (1) and (2), uniformly mixing to obtain a corrosion-resistant flame-retardant composite coating, uniformly coating the composite coating on the surface of a street lamp post, and curing and drying at room temperature;
the polyurethane prepolymer is modified by using the simethicone and the reduced graphene, the simethicone greatly enhances the hydrophobic property of the coating, the contact angle, the hardness and the impact strength of the composite coating are good, and partial defects on the surface of the composite coating can be compensated by adding the simethicone; the reduced graphene is of a lamellar structure, a few oxygen-containing groups are remained on the edge of the reduced graphene, folds exist on the edge of the reduced graphene, and titanium dioxide of the reduced graphene and zirconium cerium-silicon aluminum composite coating is used as a filler, so that the contact angle and the impact strength of the added composite coating of the reduced graphene are improved, the surface appearance is better and more compact, no bubbles or depressions exist, and the salt spray resistance and the corrosion resistance of the composite coating are good; the composite slow-release flame retardant is added, so that the slow-release flame retardant effect and the smoke suppression effect of the coating can be improved;
further, the silicon-aluminum composite coating method of the titanium dioxide in the step (1) comprises the following steps: fully dispersing 10-20 parts of titanium dioxide water slurry with the concentration of 30-40%, heating to 60-70 ℃, adding 0.03-0.06 part of sodium silicate and 1-2 parts of aluminum sulfate, adjusting the pH to 5, performing coating treatment for 1-2h, and cooling after curing to obtain the silicon-aluminum composite coated titanium dioxide slurry.
Further, the preparation of the modified montmorillonite in the step (2): dispersing 3-5 parts of sodium montmorillonite in 170 parts of deionized water (100-;
the concentration of the glacial acetic acid aqueous solution is 1-2%.
Further, in the step (3), the modifier is dimethyl silicone oil, the chain extender is diethylene glycol, the cross-linking agent is trimethylolpropane, and the defoaming agent is Foamex 810.
Compared with the prior art, the invention has the following advantages:
(1) the method comprises the steps of firstly carrying out coating curing treatment on titanium dioxide by using sodium silicate and aluminum sulfate to obtain silicon-aluminum composite coated titanium dioxide, then coating the titanium dioxide by using zirconium oxychloride and cerium nitrate to obtain zirconium-cerium-silicon-aluminum composite coated titanium dioxide, coating the surface of the titanium dioxide with a continuous, uniform and compact composite film, and improving the weather resistance of the titanium dioxide by virtue of composite coating.
(2) Firstly, cetyl ammonium bromide is utilized to carry out intercalation modification on montmorillonite, cetyl ammonium bromide organic groups enter interlayer structures of the montmorillonite and exchange interlayer cations with the interlayer structures, the interlayer spacing is successfully enlarged by intercalation, and the montmorillonite exists in an intercalation-stripping mode; the chitosan-montmorillonite-molybdenum trioxide composite material is prepared by carrying out intercalation composite reaction on the organic modified montmorillonite and molybdenum trioxide serving as raw materials and chitosan, wherein chitosan molecular intercalation enters interlamination of the montmorillonite to have a better physical crosslinking effect, the chitosan molecular intercalation composite material, the montmorillonite and the molybdenum trioxide have a better synergistic effect when compounded, the composite slow-release flame retardant has high thermal decomposition stability, the residual carbon amount is increased, and the composite slow-release flame retardant has a good slow-release flame retardant effect and a good smoke suppression effect.
(3) The polyurethane prepolymer is modified by using the simethicone and the reduced graphene, the simethicone greatly enhances the hydrophobic property of the coating, the contact angle, the hardness and the impact strength of the composite coating are good, and partial defects on the surface of the composite coating can be compensated by adding the simethicone; the reduced graphene is of a lamellar structure, a few oxygen-containing groups are remained on the edge of the reduced graphene, folds exist on the edge of the reduced graphene, and titanium dioxide of the reduced graphene and zirconium cerium-silicon aluminum composite coating is used as a filler, so that the contact angle and the impact strength of the added composite coating of the reduced graphene are improved, the surface appearance is better and more compact, no bubbles or depressions exist, and the salt spray resistance and the corrosion resistance of the composite coating are good; the composite slow-release flame retardant is added, so that the slow-release flame retardant effect and the smoke suppression effect of the coating can be improved.
Detailed Description
Example 1
The method for preparing the corrosion-resistant flame-retardant coating on the surface of the street lamp pole is characterized by comprising the following steps of:
(1) and (3) compound coating of titanium dioxide:
adding 1 part of sodium hexametaphosphate into 10 parts of silicon-aluminum composite coated titanium dioxide slurry, stirring and dispersing in a water bath at 60 ℃, adding 1 part of zirconium oxychloride and 1 part of cerium nitrate, stirring uniformly, adjusting the pH to 8 by using sodium hydroxide, reacting for 2 hours at constant temperature, performing suction filtration and water washing for 3 times, performing blast drying at 140 ℃, and crushing to obtain zirconium-cerium-silicon-aluminum composite coated titanium dioxide;
the silicon-aluminum composite coating method of the titanium dioxide comprises the following steps: fully dispersing 10 parts of titanium dioxide water slurry with the concentration of 40%, heating to 60 ℃, adding 0.03 part of sodium silicate and 1 part of aluminum sulfate, adjusting the pH to 5, performing coating treatment for 2 hours, and cooling after curing to obtain silicon-aluminum composite coated titanium dioxide slurry;
(2) preparing a composite slow-release flame retardant:
adding 5 parts of glacial acetic acid aqueous solution into 0.1 part of chitosan, fully stirring and dissolving to prepare a chitosan solution, adding 1 part of organic modified montmorillonite and 1 part of molybdenum trioxide, stirring and reacting for 4 hours in a water bath at 60 ℃, performing suction filtration and washing, and drying at 80 ℃ to obtain the composite slow-release flame retardant;
wherein, the preparation of the modified montmorillonite comprises the following steps: dispersing 3 parts of sodium montmorillonite in 100 parts of deionized water to prepare a suspension dispersion liquid, stirring for 3 hours in a water bath kettle at 80 ℃, centrifugally purifying, adding 1 part of ethanol solution of hexadecyl ammonium bromide with the concentration of 10%, magnetically stirring for 4 hours in an oil bath at 80 ℃, centrifugally washing until no precipitate is formed by adding silver nitrate into filtrate, drying in vacuum to constant weight, and grinding to obtain the organic modified montmorillonite;
the concentration of the glacial acetic acid aqueous solution is 1 percent;
(3) preparing the weather-resistant, anti-corrosion and flame-retardant coating:
adding 0.9 part of modifier, 0.3 part of chain extender, 0.2 part of cross-linking agent and 0.1 part of defoaming agent into 15 parts of polyurethane prepolymer, continuously stirring, reacting for 2 hours at 60 ℃, cooling to obtain an organic silicon modified polyurethane coating, adding 20 parts of acetone into the organic silicon modified polyurethane coating, stirring to obtain a component A, adding 0.1 part of reduced graphene into 10 parts of acetone, stirring, ultrasonically dispersing, adding the reduced graphene and the materials obtained in the steps (1) and (2) into the component A, uniformly mixing to obtain a corrosion-resistant flame-retardant composite coating, uniformly coating the composite coating on the surface of a street lamp post, and curing and drying at room temperature;
wherein the modifier is dimethyl silicone oil, the chain extender is diethylene glycol, the cross-linking agent is trimethylolpropane, and the defoaming agent is Foamex 810.
Example 2
The method for preparing the corrosion-resistant flame-retardant coating on the surface of the street lamp pole is characterized by comprising the following steps of:
(1) and (3) compound coating of titanium dioxide:
adding 2 parts of sodium hexametaphosphate into 20 parts of silicon-aluminum composite coated titanium dioxide slurry, stirring and dispersing in a 65 ℃ water bath, adding 2 parts of zirconium oxychloride and 2 parts of cerium nitrate, stirring uniformly, adjusting the pH to 10 by using sodium hydroxide, reacting for 2 hours at constant temperature, performing suction filtration and water washing for 5 times, performing blast drying at 150 ℃, and crushing to obtain zirconium-cerium-silicon-aluminum composite coated titanium dioxide;
the silicon-aluminum composite coating method of the titanium dioxide comprises the following steps: fully dispersing 20 parts of titanium dioxide water slurry with the concentration of 30%, heating to 70 ℃, adding 0.06 part of sodium silicate and 2 parts of aluminum sulfate, adjusting the pH to 5, performing coating treatment for 1 hour, and cooling after curing to obtain silicon-aluminum composite coated titanium dioxide slurry;
(2) preparing a composite slow-release flame retardant:
adding 10 parts of glacial acetic acid aqueous solution into 0.2 part of chitosan, fully stirring and dissolving to prepare a chitosan solution, adding 2 parts of organic modified montmorillonite and 2 parts of molybdenum trioxide, stirring and reacting for 2 hours in a 65 ℃ water bath, performing suction filtration, washing, and drying at 85 ℃ to obtain the composite slow-release flame retardant;
wherein, the preparation of the modified montmorillonite comprises the following steps: dispersing 5 parts of sodium montmorillonite in 170 parts of deionized water to prepare a suspension dispersion liquid, stirring for 2 hours in a water bath kettle at 85 ℃, centrifugally purifying, adding 2 parts of ethanol solution of hexadecyl ammonium bromide with the concentration of 10%, magnetically stirring for 2 hours in an oil bath at 85 ℃, centrifugally washing until no precipitate is formed by adding silver nitrate into filtrate, drying in vacuum to constant weight, and grinding to obtain the organic modified montmorillonite;
the concentration of the glacial acetic acid aqueous solution is 2 percent;
(3) preparing the weather-resistant, anti-corrosion and flame-retardant coating:
adding 1.8 parts of modifier, 0.6 part of chain extender, 0.4 part of cross-linking agent and 0.2 part of defoaming agent into 30 parts of polyurethane prepolymer, continuously stirring, reacting at 70 ℃ for 1 hour, cooling to obtain an organic silicon modified polyurethane coating, adding 30 parts of acetone into the polyurethane prepolymer, stirring to obtain a component A, adding 0.2 part of reduced graphene into 20 parts of acetone, stirring, performing ultrasonic dispersion, adding the reduced graphene and the materials obtained in the steps (1) and (2) into the component A, uniformly mixing to obtain a corrosion-resistant flame-retardant composite coating, uniformly coating the composite coating on the surface of a street lamp post, and curing and drying at room temperature;
wherein the modifier is dimethyl silicone oil, the chain extender is diethylene glycol, the cross-linking agent is trimethylolpropane, and the defoaming agent is Foamex 810.
Comparative example 1
Compared with the example 1, in the comparative example 1, titanium dioxide using the zirconium cerium-silicon aluminum composite coating is not added in the step (1), except that the steps of the method are the same.
Comparative example 2
In comparison with example 2, in comparative example 2, the composite slow-release flame retardant was not added in step (3), except that the other steps of the method were the same.
Polyurethane coating for control group street lamp post
In order to compare the performance of the street lamp pole coatings prepared by the invention, the street lamp pole coatings prepared by the methods of the embodiment 1, the embodiment 2, the comparative embodiment 1 and the comparative embodiment 2 and the street lamp pole polyurethane coatings corresponding to the control group are subjected to performance detection according to the industrial standard, and the specific comparison data are shown in the following table 1:
the street lamp pole used in the embodiment of the application is produced by the lucky photoelectric technology company Limited in Maanshan;
the test is carried out according to GB6458-86 neutral salt fog test, a certain amount of sodium chloride solids are weighed and dissolved in deionized water to prepare a sodium chloride solution with the mass fraction of 0.35%, the pH value of the solution is adjusted to be 6.5 ~ 7.2.2, a tested surface of a street lamp pole coating sample is placed in a test box at an angle of 15 ~ 30 degrees with the vertical direction, salt fog is freely settled on the tested surface, parameters of the test box are set, the spraying is not interrupted in a specified test period, after the test is finished, the test sample is cleaned and dried, and the evaluation can be carried out according to the distribution and the quantity of appearance, corrosion defects such as pitting, cracks, bubbles and the like of the tested sample;
flame retardant property: an oxygen index tester is used, and the oxygen index test is referred to national standard GB/T2406-2008;
TABLE 1
The street lamp pole coating prepared by the method disclosed by the embodiment of the invention has excellent salt spray corrosion resistance and flame retardance, the adhesive force of the coating is 0 grade, the impact strength of the coating is 49Kg & cm, the contact angle between the coating and water is 103 degrees, and the hydrophobic property of the coating is good, so that the street lamp pole coating is suitable for the use requirement and the use environment of a street lamp pole; in comparative example 1, titanium dioxide using a zirconium cerium-silicon aluminum composite coating is not added, so that the salt spray corrosion resistance of the surface coating of the street lamp post is poor, but the salt spray corrosion resistance of the surface coating of the street lamp post is still better than that of the polyurethane coating of the street lamp post of a control group; in comparative example 2, the composite slow-release flame retardant is not added, so that the limiting oxygen index of the surface coating of the street lamp pole is reduced, but the flame retardant performance of the polyurethane coating of the street lamp pole is still better than that of the polyurethane coating of the street lamp pole of a control group.
Claims (4)
1. The method for preparing the corrosion-resistant flame-retardant coating on the surface of the street lamp pole is characterized by comprising the following steps of:
(1) and (3) compound coating of titanium dioxide:
adding 1-2 parts of sodium hexametaphosphate into 10-20 parts of silicon-aluminum composite coated titanium dioxide slurry, stirring and dispersing in a water bath at 60-65 ℃, adding 1-2 parts of zirconium oxychloride and 1-2 parts of cerium nitrate, stirring uniformly, adjusting the pH to 8-10 by using sodium hydroxide, reacting for 1-2h at constant temperature, performing suction filtration and water washing for 3-5 times, performing air drying at 140-150 ℃, and crushing to obtain zirconium-cerium-silicon-aluminum composite coated titanium dioxide;
(2) preparing a composite slow-release flame retardant:
adding 5-10 parts of glacial acetic acid aqueous solution into 0.1-0.2 part of chitosan, fully stirring and dissolving to prepare a chitosan solution, adding 1-2 parts of organic modified montmorillonite and 1-2 parts of molybdenum trioxide, stirring and reacting in a water bath at 60-65 ℃ for 2-4h, performing suction filtration, washing, and drying at 80-85 ℃ to obtain the composite slow-release flame retardant;
(3) preparing the weather-resistant, anti-corrosion and flame-retardant coating:
adding 0.9-1.8 parts of modifier, 0.3-0.6 part of chain extender, 0.2-0.4 part of cross-linking agent and 0.1-0.2 part of defoaming agent into 15-30 parts of polyurethane prepolymer, continuously stirring, reacting at 60-70 ℃ for 1-2 hours, cooling to obtain an organic silicon modified polyurethane coating, adding 20-30 parts of acetone into the organic silicon modified polyurethane coating, stirring to obtain a component A, adding 0.1-0.2 part of reduced graphene into 10-20 parts of acetone, stirring, ultrasonically dispersing, adding the mixture into the component A together with the materials obtained in the steps (1) and (2), uniformly mixing to obtain a corrosion-resistant flame-retardant composite coating, uniformly coating the composite coating on the surface of a street lamp post, and curing and drying at room temperature.
2. The method for preparing the corrosion-resistant flame-retardant coating on the surface of the street lamp post according to claim 1, wherein the silicon-aluminum composite coating method of the titanium dioxide in the step (1) comprises the following steps: fully dispersing 10-20 parts of titanium dioxide water slurry with the concentration of 30-40%, heating to 60-70 ℃, adding 0.03-0.06 part of sodium silicate and 1-2 parts of aluminum sulfate, adjusting the pH to 5, performing coating treatment for 1-2h, and cooling after curing to obtain the silicon-aluminum composite coated titanium dioxide slurry.
3. The method for preparing the corrosion-resistant flame-retardant coating on the surface of the street lamp post according to claim 1, wherein the modified montmorillonite is prepared in the step (2):
dispersing 3-5 parts of sodium montmorillonite in 170 parts of deionized water (100-;
the concentration of the glacial acetic acid aqueous solution is 1-2%.
4. The method for preparing the corrosion-resistant flame-retardant coating on the surface of the street lamp post according to claim 1, wherein the modifier in the step (3) is dimethyl silicone oil, the chain extender is diethylene glycol, the cross-linking agent is trimethylol propanol, and the defoaming agent is Foamex 810.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910907868.2A CN110591531A (en) | 2019-09-25 | 2019-09-25 | Method for preparing corrosion-resistant flame-retardant coating on surface of street lamp pole |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143978A (en) * | 2007-11-13 | 2008-03-19 | 攀枝花学院 | Composite envelope titanium white powder and preparation method thereof |
| CN103640293A (en) * | 2013-11-27 | 2014-03-19 | 常熟市富邦胶带有限责任公司 | Mobile-phone film with pu (Polyurethane) coating layer |
| CN105694702A (en) * | 2016-03-15 | 2016-06-22 | 中科院广州化学有限公司南雄材料生产基地 | Single-component moisture-curable organic silicon modified polyurethane waterproof paint and preparation method |
| CN106893143A (en) * | 2017-03-17 | 2017-06-27 | 南京林业大学 | A kind of preparation method and application of montmorillonite base inorganic-organic hybridization fire retardant |
| CN108247790A (en) * | 2018-03-30 | 2018-07-06 | 吕莉 | A kind of preparation method of mould proof finishing glued board |
| WO2019012069A1 (en) * | 2017-07-12 | 2019-01-17 | Smith & Nephew Plc | Antimicrobial or wound care materials, devices and uses |
-
2019
- 2019-09-25 CN CN201910907868.2A patent/CN110591531A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143978A (en) * | 2007-11-13 | 2008-03-19 | 攀枝花学院 | Composite envelope titanium white powder and preparation method thereof |
| CN103640293A (en) * | 2013-11-27 | 2014-03-19 | 常熟市富邦胶带有限责任公司 | Mobile-phone film with pu (Polyurethane) coating layer |
| CN105694702A (en) * | 2016-03-15 | 2016-06-22 | 中科院广州化学有限公司南雄材料生产基地 | Single-component moisture-curable organic silicon modified polyurethane waterproof paint and preparation method |
| CN106893143A (en) * | 2017-03-17 | 2017-06-27 | 南京林业大学 | A kind of preparation method and application of montmorillonite base inorganic-organic hybridization fire retardant |
| WO2019012069A1 (en) * | 2017-07-12 | 2019-01-17 | Smith & Nephew Plc | Antimicrobial or wound care materials, devices and uses |
| CN108247790A (en) * | 2018-03-30 | 2018-07-06 | 吕莉 | A kind of preparation method of mould proof finishing glued board |
Non-Patent Citations (1)
| Title |
|---|
| 高平强: "《无机纳米硼酸盐复合阻燃材料制备技术》", 31 March 2019, 吉林大学出版社 * |
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