CN114836099A - Super-weather-resistant heat-insulating reflective coating and preparation method thereof - Google Patents
Super-weather-resistant heat-insulating reflective coating 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D5/004—Reflecting paints; Signal 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
- C09D7/65—Additives macromolecular
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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
- C09D7/80—Processes for incorporating ingredients
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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 provides an ultra-weather-resistant heat-insulating reflective coating and a preparation method thereof. The coating comprises the following raw materials in parts by weight: 10-20 parts of titanium dioxide, 8-12 parts of hollow glass beads, 5-15 parts of diatomite, 25-40 parts of modified epoxy resin, 25-35 parts of polyurethane, 3-7 parts of nano tin antimony oxide and 15-25 parts of a solvent. According to the invention, titanium dioxide, hollow glass beads and diatomite are reasonably matched to serve as a composite reflective and heat-insulating material to be added into the coating for use, and meanwhile, modified epoxy resin, polyurethane and nano tin antimony oxide are added into the coating, so that the components have good synergistic interaction effect, the coating has excellent heat-insulating and reflecting properties, and simultaneously has super-weather resistance, and the service life of the coating can be prolonged.
Description
Technical Field
The invention relates to the technical field of industrial corrosion prevention, in particular to an ultra-weather-resistant heat-insulating reflective coating and a preparation method thereof.
Background
Petrochemical industry belongs to basic industry, provides coordination and service for various industrial and agricultural industries and daily life of people, and plays a significant role in national economy. In the petrochemical industry, in order to increase the fluidity of thick oil and prevent wax deposition of a conveying pipeline, heat preservation measures are generally required to be taken for the conveying pipeline, so that certain requirements are required on the heat insulation and reflection performance of a coating of the conveying pipeline. The delivery conduit typically needs to be covered with a high performance insulating reflective coating to reduce heat transfer to reduce heat loss. For a long-distance conveying pipeline, the long-distance conveying pipeline is exposed under severe environmental conditions for a long time and is easily damaged by cold, heat, rain, acid, alkali, salt and the like, a certain damage is caused to a coating of the conveying pipeline, then an external corrosive medium is caused to contact the conveying pipeline, the corrosion of the conveying pipeline is caused, the coating on the surface of the conveying pipeline is easy to age along with the prolonging of the service time, and the heat insulation reflection effect of the coating is poor and the service life of the coating is shortened. Therefore, the development of the heat-insulating reflective coating with excellent weather resistance has extremely important significance in the petrochemical industry.
Disclosure of Invention
The invention aims to provide an ultra-weather-resistant heat-insulating reflective coating and a preparation method thereof, the coating is added into the coating by reasonably matching titanium dioxide, hollow glass beads and diatomite as a composite reflective heat-insulating material, and meanwhile, modified epoxy resin, polyurethane and nano tin antimony oxide are added into the coating, so that the coating has good synergistic interaction effect, has excellent heat-insulating reflective performance, simultaneously has ultra-weather resistance and can prolong the service life of the heat-insulating reflective coating.
According to a first aspect of the invention, an ultra-weather-resistant heat-insulating reflective coating is provided, which comprises the following raw materials in parts by weight: 10-20 parts of titanium dioxide, 8-12 parts of hollow glass beads, 5-15 parts of diatomite, 25-40 parts of modified epoxy resin, 25-35 parts of polyurethane, 3-7 parts of nano tin antimony oxide and 15-25 parts of a solvent;
preferably, the modified epoxy resin is prepared by the following steps: preparing nano-cellulose dispersion, adding epoxy resin into the nano-cellulose dispersion, and quickly and uniformly stirring to obtain the modified epoxy resin.
Preferably, the nanocellulose dispersion is prepared as follows: mixing nano-cellulose with water, carrying out ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, and carrying out centrifugal displacement concentration treatment to obtain a nano-cellulose dispersion liquid.
The super-weather-resistant heat-insulating reflective coating provided by the invention is added into the coating as a composite reflective heat-insulating material by reasonably matching titanium dioxide, hollow glass beads and diatomite, wherein the titanium dioxide has a good heat reflection function; the hollow glass beads have low heat conductivity coefficient, can play a good role in reflecting solar radiation, have ultrahigh reflectivity, and can reduce heat accumulation, meanwhile, the hollow glass beads are internally vacuum or filled with nitrogen and carbon dioxide gas, and have spherical shapes, so that the hollow glass beads can provide better fluidity, the coating has isotropy, the uniform stress dispersion is facilitated, and the stress cracking of the coating caused by expansion with heat and contraction with cold can be reduced; the diatomite is composed of amorphous silicon dioxide, can improve the heat preservation and insulation performance of the coating, and can be used as a thickening agent in the coating. According to the invention, titanium dioxide, hollow glass beads and diatomite are reasonably matched to be used as a composite reflective and heat-insulating material to be added into the coating, so that the coating has good heat-insulating and reflecting properties.
Secondly, the nanocellulose is adopted to modify the epoxy resin, so that the mechanical property of the epoxy resin is improved, the impact strength, the tensile elongation at break and the toughness of the epoxy resin are obviously improved, and the modified epoxy resin has excellent weather resistance.
According to the invention, the modified epoxy resin, the polyurethane and the nano tin oxide antimony are matched for use, so that the weather resistance of the coating can be further improved, the service life of the coating is further prolonged, and the dispersing performance of the titanium dioxide, the hollow glass beads and the diatomite in the coating can be improved by adding the polyurethane and the nano tin oxide antimony, so that the coating has good film-forming performance. The titanium dioxide, the hollow glass beads and the diatomite contained in the super-weather-resistant heat-insulating reflective coating provided by the invention can form a cross-linked structure with polyurethane and modified epoxy resin when the coating is formed into a film, so that the compactness, the adhesive force and the weather resistance of a paint film are improved, the reflective heat-insulating property of the paint film is also improved, and the nano tin antimony oxide dispersoid can also be used as a filler in the coating, so that the weather resistance of the coating is further improved, the service life of the coating is further prolonged, and the coating provided by the invention has a long-acting heat-insulating reflective function.
Preferably, the particle size of the titanium dioxide is 0.8-1.2 μm.
The particle size of the titanium dioxide selected by the scheme is far larger than that of common rutile titanium dioxide, so that the super-weather-resistant heat-insulating reflective coating provided by the invention has stronger infrared reflection and heat insulation capability.
Preferably, the solvent comprises acetone, methyl ethyl ketone, ethyl acetate, butyl acetate, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether.
Preferably, in the above super-weather-resistant heat-insulating reflective coating, the hollow glass beads are modified hollow glass beads, and the modified hollow glass beads are prepared by the following steps: preparing a hollow glass microsphere dispersion, adding tetraethoxysilane into the dispersion, and stirring and reacting at 70-80 ℃ for 6-10 hours to obtain the modified hollow glass microsphere. According to the scheme, the ethyl orthosilicate is used for carrying out surface modification on the hollow glass beads, and SiO in the hollow glass beads 2 The silicon-oxygen tetrahedron with Si as the center is formed, the tetraethoxysilane can be connected with the silicon-oxygen tetrahedron in the hollow glass microballoon through the silicon-oxygen structure contained in the tetraethoxysilane, the tetraethoxysilane also contains alkyl group which has a certain alkyl group orientation effect, a layer of hydrophobic film of organic siloxane is formed on the surface of the hollow glass microballoon, the organic siloxane film is more tightly combined on the surface of the hollow glass microballoon after heating treatment, and the heat insulation and reflection performance of the hollow glass microballoon can be effectively improved.
Preferably, the solvent of the dispersion of hollow glass microspheres is ethanol.
Preferably, the dispersion of hollow glass microspheres is prepared by the following steps: mixing the hollow glass beads with ethanol, and then carrying out ultrasonic treatment until the hollow glass beads are uniformly dispersed in the ethanol to prepare the hollow glass bead dispersion liquid.
Preferably, the mass ratio of the hollow glass beads to the tetraethoxysilane is 13-16: 8-12.
Preferably, the super weather-proof heat-insulating reflective coating further comprises the following raw materials in parts by weight: 3-5 parts of hydroxyethyl cellulose.
According to the scheme, the hydroxyethyl cellulose is added into the coating, so that the heat preservation and heat insulation performance of the coating can be further improved, and the weather resistance of the coating is improved to a certain extent.
Preferably, the super weather-proof heat-insulating reflective coating also comprises the following raw materials in parts by weight: 1-3 parts of a film forming additive, 1-3 parts of a dispersing agent, 0.5-1.5 parts of a defoaming agent and 0.5-1 part of a pH regulator.
Preferably, the coalescent includes at least one of a dodecyl alcohol ester, ethylene glycol butyl ether, propylene glycol phenyl ether, hexylene glycol butyl ether acetate, ethylene glycol, glycerin, and benzyl alcohol.
Preferably, the dispersant comprises at least one of triethylhexyl phosphoric acid, sodium dodecyl sulfate, methylpentanol, and fatty acid polyglycol ester.
Preferably, the defoaming agent comprises at least one of simethicone, silicone and polyvinyl acetate.
Preferably, the pH adjuster includes at least one of organic amine, ammonia water, and sodium hydroxide.
According to a second aspect of the present invention, there is provided a method for preparing the above-mentioned super weather-proof heat insulation reflective coating, comprising the steps of: adding nano tin antimony oxide and polyurethane into the solvent, uniformly stirring, adding titanium dioxide, hollow glass microspheres, diatomite and modified epoxy resin, and uniformly stirring to obtain the super weather-resistant heat-insulating reflective coating.
Detailed Description
Technical features in the technical solutions provided by the present invention are further clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The preparation method of the super weather-proof heat-insulating reflective coating comprises the following steps: adding 7 parts by weight of nano tin antimony oxide and 30 parts by weight of polyurethane into 25 parts by weight of solvent, uniformly stirring, adding 15 parts by weight of titanium dioxide, 10 parts by weight of hollow glass microspheres, 10 parts by weight of diatomite, 40 parts by weight of modified epoxy resin, 2 parts by weight of film-forming assistant, 2 parts by weight of dispersing agent, 1 part by weight of defoaming agent and 0.8 part by weight of pH regulator, and uniformly stirring to obtain the super weather-resistant heat-insulating reflective coating;
wherein the particle size of the titanium dioxide is 1.0 mu m;
the modified epoxy resin is prepared by the following steps: mixing nano-cellulose with water, performing ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, performing centrifugal displacement concentration treatment to remove water to obtain nano-cellulose dispersion liquid, performing ultrasonic treatment on the nano-cellulose dispersion liquid, then adding epoxy resin, rapidly stirring the epoxy resin uniformly, removing the ethanol, and stirring the epoxy resin uniformly to obtain the modified epoxy resin.
Example 2
The preparation method of the super weather-proof heat-insulating reflective coating comprises the following steps: adding 3 parts by weight of nano tin antimony oxide and 35 parts by weight of polyurethane into 15 parts by weight of solvent, uniformly stirring, adding 10 parts by weight of titanium dioxide, 12 parts by weight of hollow glass microspheres, 5 parts by weight of diatomite, 30 parts by weight of modified epoxy resin, 1 part by weight of film-forming assistant, 1 part by weight of dispersing agent, 0.5 part by weight of defoaming agent and 0.5 part by weight of pH regulator, and uniformly stirring to obtain the super-weather-resistant heat-insulating reflective coating;
wherein the particle size of the titanium dioxide is 0.8 mu m;
the modified epoxy resin is prepared by the following steps: mixing nano-cellulose with water, performing ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, performing centrifugal displacement concentration treatment to remove water to obtain nano-cellulose dispersion liquid, performing ultrasonic treatment on the nano-cellulose dispersion liquid, then adding epoxy resin, rapidly stirring the epoxy resin uniformly, removing the ethanol, and stirring the epoxy resin uniformly to obtain the modified epoxy resin.
Example 3
The preparation method of the super weather-proof heat-insulating reflective coating comprises the following steps: adding 5 parts by weight of nano tin antimony oxide and 25 parts by weight of polyurethane into 35 parts by weight of solvent, uniformly stirring, adding 20 parts by weight of titanium dioxide, 8 parts by weight of hollow glass microspheres, 15 parts by weight of diatomite, 25 parts by weight of modified epoxy resin, 3 parts by weight of film-forming assistant, 3 parts by weight of dispersing agent, 1.5 parts by weight of defoaming agent and 1 part by weight of pH regulator, and uniformly stirring to obtain the super weather-resistant heat-insulating reflective coating;
wherein the particle size of the titanium dioxide is 1.2 mu m;
the modified epoxy resin is prepared by the following steps: mixing nano-cellulose with water, performing ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, performing centrifugal displacement concentration treatment to remove water to obtain nano-cellulose dispersion liquid, performing ultrasonic treatment on the nano-cellulose dispersion liquid, then adding epoxy resin, rapidly stirring the epoxy resin uniformly, removing the ethanol, and stirring the epoxy resin uniformly to obtain the modified epoxy resin.
Example 4
The embodiment provides an ultra-weather-resistant heat-insulating reflective coating, which is different from the embodiment 1 in that: the hollow glass beads are modified hollow glass beads, and the modified hollow glass beads are prepared by the following steps: mixing hollow glass microspheres with ethanol, performing ultrasonic treatment until the hollow glass microspheres are uniformly dispersed in the ethanol to obtain a hollow glass microsphere dispersion, adding tetraethoxysilane into the dispersion, and stirring and reacting at 70-80 ℃ for 6-10 hours to obtain modified hollow glass microspheres;
wherein the mass ratio of the hollow glass beads to the tetraethoxysilane is 13-16: 8-12.
Example 5
The preparation method of the super weather-proof heat-insulating reflective coating comprises the following steps: adding 7 parts by weight of nano tin antimony oxide and 30 parts by weight of polyurethane into 25 parts by weight of solvent, uniformly stirring, adding 15 parts by weight of titanium dioxide, 10 parts by weight of hollow glass microspheres, 10 parts by weight of diatomite, 40 parts by weight of modified epoxy resin, 2 parts by weight of film-forming assistant, 2 parts by weight of dispersing agent, 1 part by weight of defoaming agent and 0.8 part by weight of pH regulator, and simultaneously adding 5 parts by weight of hydroxyethyl cellulose, uniformly stirring to prepare the super-weather-resistant heat-insulating reflective coating;
wherein the particle size of the titanium dioxide is 1.0 mu m;
the modified epoxy resin is prepared by the following steps: mixing nano-cellulose with water, performing ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, performing centrifugal displacement concentration treatment to remove water to obtain nano-cellulose dispersion liquid, performing ultrasonic treatment on the nano-cellulose dispersion liquid, then adding epoxy resin, rapidly stirring the epoxy resin uniformly, removing the ethanol, and stirring the epoxy resin uniformly to obtain the modified epoxy resin.
Example 6
The preparation method of the super weather-proof heat-insulating reflective coating comprises the following steps: adding 7 parts by weight of nano tin antimony oxide and 30 parts by weight of polyurethane into 25 parts by weight of solvent, uniformly stirring, adding 15 parts by weight of titanium dioxide, 10 parts by weight of hollow glass microspheres, 10 parts by weight of diatomite, 40 parts by weight of modified epoxy resin, 2 parts by weight of film-forming assistant, 2 parts by weight of dispersing agent, 1 part by weight of defoaming agent and 0.8 part by weight of pH regulator, and simultaneously adding 3 parts by weight of hydroxyethyl cellulose, uniformly stirring to prepare the super-weather-resistant heat-insulating reflective coating;
wherein the particle size of the titanium dioxide is 1.0 mu m;
the modified epoxy resin is prepared by the following steps: mixing nano-cellulose with water, performing ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, performing centrifugal displacement concentration treatment to remove water to obtain nano-cellulose dispersion liquid, performing ultrasonic treatment on the nano-cellulose dispersion liquid, then adding epoxy resin, rapidly stirring the epoxy resin uniformly, removing the ethanol, and stirring the epoxy resin uniformly to obtain the modified epoxy resin.
Example 7
The preparation method of the super weather-proof heat-insulating reflective coating comprises the following steps: adding 7 parts by weight of nano tin antimony oxide and 30 parts by weight of polyurethane into 25 parts by weight of solvent, uniformly stirring, adding 15 parts by weight of titanium dioxide, 10 parts by weight of hollow glass microspheres, 10 parts by weight of diatomite, 40 parts by weight of modified epoxy resin, 2 parts by weight of film-forming assistant, 2 parts by weight of dispersing agent, 1 part by weight of defoaming agent and 0.8 part by weight of pH regulator, and simultaneously adding 4 parts by weight of hydroxyethyl cellulose, uniformly stirring to prepare the super-weather-resistant heat-insulating reflective coating;
wherein the particle size of the titanium dioxide is 1.0 mu m;
the modified epoxy resin is prepared by the following steps: mixing nano-cellulose with water, performing ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, performing centrifugal displacement concentration treatment to remove water to obtain nano-cellulose dispersion liquid, performing ultrasonic treatment on the nano-cellulose dispersion liquid, then adding epoxy resin, rapidly stirring the epoxy resin uniformly, removing the ethanol, and stirring the epoxy resin uniformly to obtain the modified epoxy resin.
Comparative example 1
The comparative example provides an ultra-weather-resistant heat-insulating reflective coating which is different from the coating of example 1 in that: the particle size of the titanium dioxide is 0.3 mu m.
Comparative example 2
The comparative example provides an ultra-weather-resistant heat-insulating reflective coating which is different from the coating of example 1 in that: and the hollow glass micro-beads are not contained.
Comparative example 3
The comparative example provides an ultra-weather-resistant heat-insulating reflective coating which is different from the coating of example 1 in that: the common epoxy resin which is not modified by the nano-cellulose is used for replacing the modified epoxy resin.
Comparative example 4
The comparative example provides an ultra-weather-resistant heat-insulating reflective coating which is different from the coating of example 1 in that: does not contain nano tin antimony oxide.
Comparative example 5
The comparative example provides an ultra-weather-resistant heat-insulating reflective coating which is different from the coating of example 1 in that: phenolic resin is used instead of polyurethane.
Comparative example 6
The preparation method of the super weather-proof heat-insulating reflective coating comprises the following steps: mixing and stirring 25 parts by weight of solvent, 7 parts by weight of nano tin antimony oxide, 30 parts by weight of polyurethane, 15 parts by weight of titanium dioxide, 10 parts by weight of hollow glass microspheres, 10 parts by weight of diatomite, 40 parts by weight of modified epoxy resin, 2 parts by weight of film forming additive, 2 parts by weight of dispersing agent, 0.8 part by weight of thickening agent, 1 part by weight of defoaming agent and 0.8 part by weight of pH value, and uniformly to prepare the super-weather-resistant heat-insulating reflective coating;
wherein the particle size of the titanium dioxide is 1.0 mu m;
the modified epoxy resin is prepared by the following steps: mixing nano-cellulose with water, performing ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, performing centrifugal displacement concentration treatment to remove water to obtain nano-cellulose dispersion liquid, performing ultrasonic treatment on the nano-cellulose dispersion liquid, then adding epoxy resin, rapidly stirring the epoxy resin uniformly, removing the ethanol, and stirring the epoxy resin uniformly to obtain the modified epoxy resin.
Test example
The reference object of the test example is the super weather-proof heat insulation reflective coating prepared in the examples 1-7 and the comparative examples 1-6, and the heat insulation reflective performance and the weather resistance of the reference object are tested.
(1) Solar reflectance and hemispherical emissivity
Refer to national standard GB/T25261-2010 reflective thermal insulation coating for buildings;
(2) coefficient of thermal conductivity and coefficient of thermal conductivity
Reference to national standard GB/T10294-2008;
(3) weather resistance
The super weather-resistant heat-insulating reflective coatings of examples 1 to 7 and comparative examples 1 to 6 were prepared into painted panels, and QUV performance was measured using a QUV/Se artificially accelerated aging apparatus (U.S. Q-Panel, ultraviolet wavelength: 313nm), and the weather resistance of this test example was expressed as the result of measurement of color difference (. DELTA.E) of the painted panels for QUV1200 hours.
TABLE 1 test results of heat insulation reflection performance and weather resistance of the coating
The test results of the heat insulation reflection performance and the weather resistance performance of the super weather-proof heat insulation reflection coatings of the examples 1 to 7 and the comparative examples 1 to 6 are shown in table 1. As can be seen from table 1, compared with comparative examples 1 to 5, the super weather-proof heat insulation reflective coating of examples 1 to 7 has excellent heat insulation reflective performance by reasonably matching titanium dioxide, hollow glass beads and diatomite as a composite reflective and heat insulation material to be added into the coating, and adding modified epoxy resin, polyurethane and nano tin antimony oxide into the coating, so that the coating has good synergistic interaction effect, and the sunlight reflection ratio reaches 90%, the hemispherical emissivity reaches 89%, the thermal conductivity coefficient is low, and the heat insulation temperature difference is more than 8.5 ℃ after a paint film is prepared; meanwhile, the paint provided by the invention has super-weatherability, and the color difference delta E of a QUV 1200-hour paint film prepared from the paint is between 1 and 2. In addition, compared with the super weather-proof heat-insulating reflective coating prepared by mixing all the raw materials at one time in the comparative example 6, the nano tin antimony oxide and the polyurethane are fully stirred to react, and then the rest raw materials are added to prepare the super weather-proof heat-insulating reflective coating, which has better heat-insulating reflective performance and weather resistance than the super weather-proof heat-insulating reflective coating prepared in the comparative example 6.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The super weather-resistant heat-insulating reflective coating is characterized by comprising the following raw materials in parts by weight: 10-20 parts of titanium dioxide, 8-12 parts of hollow glass beads, 5-15 parts of diatomite, 25-40 parts of modified epoxy resin, 25-35 parts of polyurethane, 3-7 parts of nano tin antimony oxide and 15-25 parts of a solvent;
the modified epoxy resin is prepared by the following steps: preparing nano-cellulose dispersion, adding epoxy resin into the nano-cellulose dispersion, and quickly and uniformly stirring to obtain the modified epoxy resin.
2. The super weatherable, heat insulating, reflective coating of claim 1, wherein: the particle size of the titanium dioxide is 0.8-1.2 mu m.
3. The super weatherable, heat insulating, and reflective coating of claim 1, wherein the nanocellulose dispersion is prepared by the following process: mixing nano-cellulose with water, carrying out ultrasonic treatment until the nano-cellulose is uniformly dispersed in the water, adding ethanol into the mixture, and carrying out centrifugal displacement concentration treatment to obtain the nano-cellulose dispersion liquid.
4. The super weather-resistant heat-insulating reflective coating as claimed in claim 1, wherein the hollow glass beads are modified hollow glass beads, and the modified hollow glass beads are prepared by the following steps: preparing hollow glass bead dispersion, adding ethyl orthosilicate, stirring and reacting for 6-10 hours at 70-80 ℃ to obtain the modified hollow glass beads.
5. The super weatherable, heat insulating, and reflective coating of claim 4, wherein the solvent of the dispersion of hollow glass microspheres is ethanol.
6. The super weatherable, heat insulating, reflective coating of claim 4, wherein: the mass ratio of the hollow glass beads to the tetraethoxysilane is 13-16: 8-12.
7. The super weather-resistant heat-insulating reflective coating as claimed in claim 1, further comprising the following raw materials in parts by weight: 3-5 parts of hydroxyethyl cellulose.
8. The super weather-resistant heat-insulating reflective coating as claimed in claim 1, further comprising the following raw materials in parts by weight: 1-3 parts of a film forming additive, 1-3 parts of a dispersing agent, 0.5-1.5 parts of a defoaming agent and 0.5-1 part of a pH regulator.
9. The super weatherable, heat insulating, reflective coating of claim 8, wherein: the film forming auxiliary agent comprises at least one of dodecyl alcohol ester, ethylene glycol butyl ether, propylene glycol phenyl ether, hexylene glycol butyl ether acetate, ethylene glycol, glycerol and benzyl alcohol;
the dispersant comprises at least one of triethyl hexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol and fatty acid polyglycol ester.
10. The preparation method of the super weather-proof heat-insulating reflective coating as claimed in claim 1, characterized by comprising the following steps: adding the nano tin antimony oxide and the polyurethane into the solvent, uniformly stirring, adding the titanium dioxide, the hollow glass microspheres, the diatomite and the modified epoxy resin, and uniformly stirring to obtain the super weather-proof heat-insulating reflective coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210467597.5A CN114836099A (en) | 2022-04-29 | 2022-04-29 | Super-weather-resistant heat-insulating reflective coating and preparation method thereof |
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| CN202210467597.5A CN114836099A (en) | 2022-04-29 | 2022-04-29 | Super-weather-resistant heat-insulating reflective coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117555060A (en) * | 2024-01-11 | 2024-02-13 | 宁波长阳科技股份有限公司 | Coated reflecting film based on multi-morphology particle coating and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371531A (en) * | 2014-12-08 | 2015-02-25 | 中国海洋石油总公司 | High-reflective acrylic polyurethane coating composition |
| CN104449330A (en) * | 2013-09-25 | 2015-03-25 | 青岛市首胜实业有限公司 | Special heat-insulating reflective coating for oil tank |
| CN105111869A (en) * | 2015-10-13 | 2015-12-02 | 江苏久诺建材科技有限公司 | Reflective thermal-insulation coating |
| CN106867324A (en) * | 2017-03-03 | 2017-06-20 | 浙江泰基涂料有限公司 | A kind of reflective heat-insulation paint and its preparation technology |
| CN109233493A (en) * | 2017-05-10 | 2019-01-18 | 上海大学 | Hot coating of a kind of high reflectance acrylic acid screening and preparation method thereof |
| CN112608671A (en) * | 2020-12-04 | 2021-04-06 | 中国特种设备检测研究院 | Heat-insulating polyurethane anticorrosive paint and preparation method thereof |
| CN113637377A (en) * | 2021-07-28 | 2021-11-12 | 孙志远 | Building exterior wall decorative coating and preparation method thereof |
-
2022
- 2022-04-29 CN CN202210467597.5A patent/CN114836099A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449330A (en) * | 2013-09-25 | 2015-03-25 | 青岛市首胜实业有限公司 | Special heat-insulating reflective coating for oil tank |
| CN104371531A (en) * | 2014-12-08 | 2015-02-25 | 中国海洋石油总公司 | High-reflective acrylic polyurethane coating composition |
| CN105111869A (en) * | 2015-10-13 | 2015-12-02 | 江苏久诺建材科技有限公司 | Reflective thermal-insulation coating |
| CN106867324A (en) * | 2017-03-03 | 2017-06-20 | 浙江泰基涂料有限公司 | A kind of reflective heat-insulation paint and its preparation technology |
| CN109233493A (en) * | 2017-05-10 | 2019-01-18 | 上海大学 | Hot coating of a kind of high reflectance acrylic acid screening and preparation method thereof |
| CN112608671A (en) * | 2020-12-04 | 2021-04-06 | 中国特种设备检测研究院 | Heat-insulating polyurethane anticorrosive paint and preparation method thereof |
| CN113637377A (en) * | 2021-07-28 | 2021-11-12 | 孙志远 | Building exterior wall decorative coating and preparation method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 中国复合材料学会: "《复合材料技术路线图》", 31 July 2020, 中国科学技术出版社, pages: 225 * |
| 中国材料研究学会: "《中国战略性新兴产业 新材料 环境工程材料》", 30 November 2018, 中国铁道出版社, pages: 381 - 406 * |
| 牛伯羽: "《土木工程材料》", 31 January 2019, 中国质检出版社, pages: 229 * |
| 王科林 等: "二氧化钛的隔热机理及其在功能织物上的应用", 《现代纺织技术》, vol. 17, no. 01, 10 January 2009 (2009-01-10), pages 59 - 62 * |
| 许冬生: "《十三五"普通高等教育本科规划教材 聚合物改性原理》", 中国轻工业出版社, pages: 136 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117555060A (en) * | 2024-01-11 | 2024-02-13 | 宁波长阳科技股份有限公司 | Coated reflecting film based on multi-morphology particle coating and preparation method thereof |
| CN117555060B (en) * | 2024-01-11 | 2024-04-02 | 宁波长阳科技股份有限公司 | Coated reflecting film based on multi-morphology particle coating and preparation method thereof |
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