CN116410636B - Color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions and preparation method thereof - Google Patents

Color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions and preparation method thereof Download PDF

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CN116410636B
CN116410636B CN202310164143.5A CN202310164143A CN116410636B CN 116410636 B CN116410636 B CN 116410636B CN 202310164143 A CN202310164143 A CN 202310164143A CN 116410636 B CN116410636 B CN 116410636B
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corrosion
fluorocarbon
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CN116410636A (en
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马超
万常仁
颜清林
鲁家辉
张�林
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Shenzhen Naneng Technology Co ltd
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • 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
    • C09D17/00—Pigment pastes, e.g. for mixing in paints
    • 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
    • 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
    • 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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    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract

The invention discloses a color-adjustable fluorocarbon heat reflection coating with an anti-corrosion and anti-fouling function and a preparation method thereof, wherein each component of the color-adjustable fluorocarbon heat reflection coating with the anti-corrosion and anti-fouling function consists of the following components in parts by mass: 20-45 parts of aqueous fluorocarbon resin emulsion, 5-10 parts of organic silicon resin and nano TiO 2 20-35 parts of concentrated slurry, 2-5 parts of nano zinc oxide, 1-3 parts of antimony oxide, 1-3 parts of film forming auxiliary agent, 1-2.4 parts of other auxiliary agents, 0.01-1 part of color mixing slurry and 15-20 parts of water; the color-mixing color paste comprises one or more of nano transparent yellow paste, nano transparent red paste and nano transparent black paste; adding modified coco propylene diamine into the nano titanium dioxide concentrated slurry. The color heat reflection coating prepared by the method has excellent heat reflection effect and also has excellent corrosion resistance and stain resistance.

Description

Color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions and preparation method thereof
Technical Field
The invention relates to the field of heat reflection paint, in particular to a color-adjustable fluorocarbon heat reflection paint with anti-corrosion and anti-pollution functions and a preparation method thereof.
Background
The water-base fluorocarbon paint is also called fluorocarbon paint, fluorocarbon resin paint, etc. and is one kind of environment protecting weather resisting paint with fluorocarbon resin as main film forming matter, and with ceramic inorganic pigment, assistant, water, etc. added to the water-base fluorocarbon resin. The fluorine resin coating has the advantages of acid and alkali resistance, ultraviolet radiation resistance, wind resistance, water resistance and antistatic property due to the large electronegativity of the introduced fluorine element and strong fluorocarbon bond energy. Through rapid development for decades, the fluororesin coating is widely applied to various fields of construction, chemical industry, electrical and electronic industry, mechanical industry, aerospace industry and household appliances. Currently, the fluororesin coating with relatively wide application mainly comprises three types of PTFE, PVDF, PEVE and the like.
With the improvement of living standard of people and the progress of modern industrialization, the demands of people on living environment are increasing. Building insulation and thermal insulation of industrial machinery are increasingly important, and various types of thermal insulation coatings are increasingly developed. The heat-insulating paint used in the building is mainly heat-reflecting paint, and the heat-insulating paint used in the industry is mainly barrier type and radiation heat-insulating paint. In addition, the poor stain resistance of the building exterior wall decorative coating will have the following effects. Firstly, the insufficient anti-fouling capability of the building exterior wall decorative paint can lead to the great reduction of the aesthetic property of the wall body and the building. And secondly, pollutants are attached to the paint film for a long time to gradually erode and infiltrate into the paint film to influence the wall body, so that the durability of the wall body is reduced, and potential safety hazards are caused. Furthermore, the heat reflection performance of the polluted paint film can be obviously reduced, and the reflective heat insulation function of the paint can not be permanently and effectively exerted. Finally, the insufficient antifouling property of the paint not only influences the aesthetic property of the building, but also weakens the weather resistance of the paint, so that the defects of chalking, yellowing, fading, falling off, cracking and the like of the wall coating film are caused, and the service life of the paint is influenced.
The reflective heat-insulating coating prepared from different pigments has different solar reflectance due to different colors, and in general, the reflective performance of the white coating is optimal. In order to meet the demands of people on the color application of the paint, colored heat-reflecting paint is developed, but the reflective property of the colored heat-reflecting paint is poor, so that the application of the colored heat-reflecting paint is limited, and the improvement is still needed.
Disclosure of Invention
In order to improve the reflection effect of the color heat reflection coating and obtain the heat reflection coating with excellent anti-corrosion and anti-fouling properties, the application provides a color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions and a preparation method thereof.
The color-adjustable fluorocarbon heat reflection coating with the anti-corrosion and anti-fouling functions comprises the following components in parts by mass: 20-45 parts of aqueous fluorocarbon resin emulsion
5-10 parts of organic silicon resin
Nanometer TiO 2 Concentrated slurry 20-35 parts
2-5 parts of nano zinc oxide
1-3 parts of antimony oxide
1-3 parts of film forming auxiliary agent
1 to 2.4 portions of other auxiliary agents
Color paste 0.01-1 part
15-20 parts of water;
the color-mixing color paste comprises one or more of nano transparent yellow paste, nano transparent red paste and nano transparent black paste; adding modified coco propylene diamine into the nano titanium dioxide concentrated slurry.
In the paint, the aqueous fluorocarbon resin emulsion is used as a main film forming substance, the aqueous fluorocarbon resin emulsion has higher anti-fouling and anti-corrosion performances, the organic silicon resin emulsion which also has excellent weather resistance, heat resistance, low friction coefficient and anti-corrosion performances is also added as an auxiliary film forming substance, and nano TiO is also added 2 The concentrated slurry and the color-mixing color paste are matched to form a colorful heat reflection coating, and the nano TiO 2 The concentrated slurry is added with the modified cocopropylenediamine, so that the nano TiO can be improved 2 The dispersion stability can be improved obviously, and the infrared reflection performance and the solar reflectance retention rate after pollution of the coating can be improved obviously.
The nanometer transparent yellow paste, the nanometer transparent red paste and the nanometer transparent black paste are singly used or combined to be used as the color-mixing pigment, thereby having good color-mixing function and meeting the requirements of users on different colors. The color paste can be color paste with infrared reflection effect, such as Australian yellow, australian red and Australian black color paste, which has extremely high infrared reflection performance and is beneficial to improving the infrared reflection performance of the coating.
The paint prepared by the components has excellent adhesive force to the surfaces of various base materials such as concrete, metal, glass and the like, and can simultaneously meet the requirements of two application fields of building houses and industrial equipment.
Preferably, the nano TiO 2 The concentrated slurry consists of the following components in parts by mass:
40-47 parts of aqueous fluorocarbon resin emulsion
Nanometer TiO 2 20-30 parts
2-3 parts of modified coconut oil propylene diamine
1-3 parts of defoaming agent
26-28 parts of water.
Preferably, the nano TiO 2 The preparation method of the concentrated slurry comprises the following steps: coconut oil propylene diamine and di [4- (oxyglycidol) phenyl group]Methane and inorganic alkali are mixed and react for 2 to 4 hours at the temperature of 100 to 120 ℃ to obtain modified coco propylene diamine, and nano TiO is prepared 2 Mixing the modified cocopropylenediamine, the defoamer, the aqueous fluorocarbon resin emulsion and water, and uniformly stirring to obtain nano TiO 2 Concentrating the slurry.
Nano TiO prepared by the method 2 The concentrated slurry has excellent dispersion stability, and simultaneously, the modified cocopropylenediamine and the nano TiO 2 The anti-fouling property of the paint can be further improved, the adhesion of pollutants is reduced, and the modified coco propylene diamine can promote nano TiO 2 Reflecting infrared and visible light, so that the infrared reflectance of the coating and the solar reflectance retention rate after pollution are obviously improved.
Preferably, the mol ratio of the cocopropylenediamine to the di [4- (glycidyl) phenyl ] methane is 1-2:1, preferably, the inorganic base is potassium carbonate, and the addition amount of the potassium carbonate accounts for 1-3% of the mol amount of the di [4- (glycidyl) phenyl ] methane.
Cocopropylenediamine and bis [4- (glycidol oxide) phenyl ]]Methane is mixed according to the mass ratio of 2-4:1, and the di [4- (glycidol oxide) phenyl ] is added]1.5-3% potassium carbonate by mass of methane to promote the progress of the modification reaction, and nano TiO thus obtained 2 Concentrated pulpWhen added to a coating, excellent anti-fouling and heat reflection effects can be produced.
Preferably, the titanium dioxide is rutile type nano titanium dioxide.
Preferably, the film forming additive is one or more of diethylene glycol monobutyl ether, propylene glycol diacetate, alcohol ester twelve, ethylene glycol phenyl ether, propylene glycol phenyl ether, tripropylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether.
Preferably, the film forming auxiliary agent is diethylene glycol monobutyl ether and propylene glycol diacetate, and the mass ratio is 2-4: 1.
Compared with other film forming aids, the diethylene glycol monobutyl ether and propylene glycol diacetate are combined to be used as the film forming aids, the obtained coating has excellent compactness and a better heat reflection effect.
Preferably, the other auxiliary agents are one or a combination of more of modified coco propylene diamine, defoamer, antirust agent and rheological auxiliary agent.
Preferably, the other auxiliary agent
0.2-0.5 part of modified coconut oil propylene diamine
0.2 to 0.5 part of defoaming agent
0.1 to 0.4 part of rust inhibitor
0.5-1 part of rheological additive.
A preparation method of a color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions comprises the following steps:
aqueous fluorocarbon resin emulsion, organic silicon resin and nano TiO 2 The concentrated slurry, the nano zinc oxide, the antimony oxide, the film forming additive, other additives, the color mixing color paste and water are mixed and uniformly stirred and dispersed to obtain the color-adjustable fluorocarbon heat reflection coating with the functions of corrosion resistance and pollution resistance.
The preparation of the paint is simply and uniformly mixed, and the preparation method is simple and convenient to operate.
In summary, the present application has the following beneficial effects:
1. due to nano TiO 2 The concentrated slurry is added with the modified cocopropylenediamine, so that the nano TiO can be improved 2 The dispersion stability is improved, and the dispersion stability,the anti-fouling property of the coating can be obviously improved, and the infrared reflection performance and the solar reflectance retention rate after pollution of the coating are also obviously improved.
2. The color-mixing color paste with extremely high infrared reflection performance is adopted, so that the infrared reflection performance of the coating is improved.
3. The coating product prepared by the method can meet the requirements of buildings on reflective heat insulation, including outdoor building floors, roofs, glass curtain walls and the like, and can also meet the requirements of industrial mechanical equipment on reflective heat insulation, including outdoor chemical industry, electrical and electronic industry, mechanical industry and the like.
Detailed Description
The aqueous fluorocarbon resin emulsion adopts Jiaying DF-12L; the defoaming agent adopts Hao Nuan-552; the organosilicon resin adopts SHSIL TM SH9609; the rust inhibitor adopts KH-7027 of HPRUST; the rheological aid adopts Pick BYK8421.
Example 1
A color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions is prepared by the following steps:
preparing modified cocopropylenediamine: 10mol of coco-propylenediamine, 10mol of bis [4- (glycidol) phenyl ] methane and 0.2mol of potassium carbonate were mixed and reacted at 100℃for 4 hours to obtain a modified coco-propylenediamine.
Preparation of nano TiO 2 Concentrating the slurry: taking 0.3kg of modified coconut oil propylene diamine and 3kg of rutile type nano TiO 2 Mixing 0.1kg of defoamer, 4kg of aqueous fluorocarbon resin emulsion and 2.6kg of water, grinding and dispersing until the fineness is less than 30 mu m to obtain nano TiO 2 Concentrating the slurry.
Preparing a heat reflection coating: taking 2kg of aqueous fluorocarbon resin emulsion, 1kg of organic silicon resin, 0.02kg of modified coconut oil propylene diamine, 0.02kg of defoamer and 2kg of nano TiO 2 Concentrated slurry, 0.2kg of nano zinc oxide, 0.1kg of antimony oxide, 0.01kg of antirust agent, 0.05kg of rheological additive, 0.05kg of diethylene glycol monobutyl ether, 0.05kg of propylene glycol diacetate, 0.001kg of Australian red nano transparent color paste and 2kg of water are mixed, and stirred for 20min at 100r/min, and uniformly stirred and dispersed to obtain the heat reflection coating.
Example 2
A color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions is prepared by the following steps:
preparing modified cocopropylenediamine: 10mol of coco-propylenediamine, 1.5mol of bis [4- (glycidol oxide) phenyl ] methane and 0.2mol of potassium carbonate were mixed and reacted at 100℃for 4 hours to obtain modified coco-propylenediamine.
Preparation of nano TiO 2 Concentrating the slurry: taking 0.3kg of modified coconut oil propylene diamine and 3kg of rutile type nano TiO 2 Mixing 0.1kg of defoamer, 4kg of aqueous fluorocarbon resin emulsion and 2.6kg of water, grinding and dispersing until the fineness is less than 30 mu m to obtain nano TiO 2 Concentrating the slurry.
Preparing a heat reflection coating: taking 2kg of aqueous fluorocarbon resin emulsion, 1kg of organic silicon resin, 0.02kg of modified coconut oil propylene diamine, 0.02kg of defoamer and 2kg of nano TiO 2 Concentrated slurry, 0.2kg of nano zinc oxide, 0.1kg of antimony oxide, 0.01kg of antirust agent, 0.05kg of rheological additive, 0.05kg of diethylene glycol monobutyl ether, 0.05kg of propylene glycol diacetate, 0.001kg of Australian red nano transparent color paste and 2kg of water are mixed, and stirred for 20min at 100r/min, and uniformly stirred and dispersed to obtain the heat reflection coating.
Example 3
A color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions is prepared by the following steps:
preparing modified cocopropylenediamine: 10mol of coco-propylenediamine, 15mol of bis [4- (glycidol) phenyl ] methane and 0.2mol of potassium carbonate were mixed and reacted at 100℃for 4 hours to obtain a modified coco-propylenediamine.
Preparation of nano TiO 2 Concentrating the slurry: taking 0.2kg of modified coconut oil propylene diamine and 2kg of rutile type nano TiO 2 Mixing 0.12kg of defoamer, 4.7kg of aqueous fluorocarbon resin emulsion and 2.8kg of water, grinding and dispersing until the fineness is less than 30 mu m to obtain nano TiO 2 Concentrating the slurry.
Preparing a heat reflection coating: taking 2kg of aqueous fluorocarbon resin emulsion, 1kg of organic silicon resin, 0.02kg of modified coconut oil propylene diamine, 0.02kg of defoamer and 2kg of nano TiO 2 Concentrated slurry, 0.2kg nano zinc oxide, 0.1kg antimony oxide, 0.01kg rust inhibitor, 0.05kg rheological additive and 0.05kgMixing diethylene glycol monobutyl ether (kg), propylene glycol diacetate (0.05 kg), australian red nano transparent color paste (0.001 kg) and water (2 kg), stirring for 20min at 100r/min, and uniformly stirring and dispersing to obtain the heat reflection coating.
Example 4
A color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions is prepared by the following steps:
preparing modified cocopropylenediamine: 10mol of coco-propylenediamine, 15mol of bis [4- (glycidol) phenyl ] methane and 0.2mol of potassium carbonate were mixed and reacted at 100℃for 4 hours to obtain a modified coco-propylenediamine.
Preparation of nano TiO 2 Concentrating the slurry: taking 0.25kg of modified coconut oil propylene diamine and 2.5kg of rutile type nano TiO 2 Mixing 0.15kg of defoamer, 4.5kg of aqueous fluorocarbon resin emulsion and 2.6kg of water, grinding and dispersing until the fineness is less than 30 mu m to obtain nano TiO 2 Concentrating the slurry.
Preparing a heat reflection coating: taking 2kg of aqueous fluorocarbon resin emulsion, 1kg of organic silicon resin, 0.02kg of modified coconut oil propylene diamine, 0.02kg of defoamer and 2kg of nano TiO 2 Concentrated slurry, 0.2kg of nano zinc oxide, 0.1kg of antimony oxide, 0.01kg of antirust agent, 0.05kg of rheological additive, 0.05kg of diethylene glycol monobutyl ether, 0.05kg of propylene glycol diacetate, 0.001kg of Australian red nano transparent color paste and 2kg of water are mixed, and stirred for 20min at 100r/min, and uniformly stirred and dispersed to obtain the heat reflection coating.
Example 5
A color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions is prepared by the following steps:
preparing modified cocopropylenediamine: 10mol of coco-propylenediamine, 15mol of di [4- (glycidyl oxide) phenyl ] methane and 0.2mol of potassium carbonate are mixed and reacted for 4 hours at 100 ℃ to obtain self-made modified coco-propylenediamine.
Preparation of nano TiO 2 Concentrating the slurry: taking 0.25kg of self-made modified coconut oil propylene diamine and 2.5kg of rutile type nano TiO 2 Mixing 0.15kg of defoamer, 4.5kg of aqueous fluorocarbon resin emulsion and 2.6kg of water, grinding and dispersing until the fineness is less than 30 mu m to obtain nano TiO 2 Concentrating the slurry.
Preparation of a thermal reactionAnd (3) spraying a coating: taking 4.5kg of aqueous fluorocarbon resin emulsion, 0.5kg of organic silicon resin, 0.05kg of modified coconut propylene diamine, 0.05kg of defoamer and 3.5kg of nano TiO 2 Concentrated slurry, 0.5kg of nano zinc oxide, 0.3kg of antimony oxide, 0.04kg of antirust agent, 0.1kg of rheological additive, 0.15kg of diethylene glycol monobutyl ether, 0.15kg of propylene glycol diacetate, 0.01kg of Australian red nano transparent color paste and 1.5kg of water are mixed, and stirred for 20min at 100r/min, and uniformly stirred and dispersed to obtain the heat reflection coating.
Comparative example 1
A heat reflecting paint is prepared by the following steps:
preparation of nano TiO 2 Concentrating the slurry: 0.25kg of coconut oil propylene diamine and 2.5kg of rutile type nano TiO are taken 2 Mixing 0.15kg of defoamer, 4.5kg of aqueous fluorocarbon resin emulsion and 2.6kg of water, grinding and dispersing until the fineness is less than 30 mu m to obtain nano TiO 2 Concentrating the slurry.
Preparing a heat reflection coating: taking 4.5kg of aqueous fluorocarbon resin emulsion, 0.5kg of organic silicon resin, 0.05kg of modified coconut propylene diamine, 0.05kg of defoamer and 3.5kg of nano TiO 2 Concentrated slurry, 0.5kg of nano zinc oxide, 0.3kg of antimony oxide, 0.04kg of antirust agent, 0.1kg of rheological additive, 0.3kg of film forming additive, 0.01kg of Australian red nano transparent color paste and 1.5kg of water are mixed, stirred for 20min at 100r/min, and uniformly stirred and dispersed to obtain the heat reflection coating.
Experiment
The adhesive force test is carried out according to the requirements of GB/T9286-1998 cross-cut test of paint films of colored paint and varnish, the salt spray resistance test is carried out according to the requirements of GB/T1771-2007 determination of neutral salt spray resistance of colored paint and varnish, and the test is carried out according to the functional requirements of heat insulation in GB/T25261-2018 reflective heat insulation paint for buildings. The test results are shown in Table 1.
TABLE 1
As shown by the test results in Table 1, the heat reflection coatings prepared in examples 1-5 of the present application have good heat reflection performance, and the change rate of solar reflectance after pollution is small, and have excellent adhesion and corrosion resistance.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.

Claims (5)

1. A color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions is characterized in that: the composite material consists of the following components in parts by mass:
20-45 parts of aqueous fluorocarbon resin emulsion
5-10 parts of organic silicon resin
Nanometer TiO 2 Concentrated slurry 20-35 parts
2-5 parts of nano zinc oxide
1-3 parts of antimony oxide
1-3 parts of film forming auxiliary agent
1 to 2.4 portions of other auxiliary agents
Color paste 0.01-1 part
15-20 parts of water;
the color-mixing color paste comprises one or more of nano transparent yellow paste, nano transparent red paste and nano transparent black paste; nanometer TiO 2 Adding modified coconut oil propylene diamine into the concentrated slurry;
the nano TiO 2 The concentrated slurry consists of the following components in parts by mass:
nanometer TiO 2 20-30 parts
2-3 parts of modified coconut oil propylene diamine
1-3 parts of defoaming agent
40-47 parts of aqueous fluorocarbon resin emulsion
26-28 parts of water;
the nano TiO 2 The preparation method of the concentrated slurry comprises the following steps: coconut oil propylene diamine and di [4- (oxyglycidol) phenyl group]Methane andinorganic alkali is mixed and reacts for 2 to 4 hours at the temperature of 100 to 120 ℃ to obtain modified cocopropylenediamine, and nano TiO is prepared 2 Mixing the modified cocopropylenediamine, the defoamer, the aqueous fluorocarbon resin emulsion and water, and uniformly stirring to obtain nano TiO 2 Concentrating the slurry;
the mol ratio of the cocopropylenediamine to the di [4- (glycidyl oxide) phenyl ] methane is 1-2:1;
the inorganic base is potassium carbonate, and the addition amount of the potassium carbonate accounts for 0.1-0.3% of the mole of the di [4- (glycidyl oxide) phenyl ] methane;
the other auxiliary agent is one or a combination of a plurality of dispersing agents, defoamers, rust inhibitors and rheology auxiliaries.
2. The color-tunable fluorocarbon heat reflective coating with anti-corrosion and anti-fouling functions of claim 1, wherein: the nano TiO 2 Is rutile type nano TiO 2 。
3. The color-tunable fluorocarbon heat reflective coating with anti-corrosion and anti-fouling functions of claim 1, wherein: the film forming additive is one or a combination of more of diethylene glycol monobutyl ether, propylene glycol diacetate, alcohol ester twelve, ethylene glycol phenyl ether, propylene glycol phenyl ether, tripropylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether.
4. A color tunable fluorocarbon heat reflective coating having anti-corrosive and anti-fouling functions as claimed in claim 3, wherein: the film forming additive is diethylene glycol monobutyl ether and propylene glycol diacetate, and the mass ratio is 2-4: 1.
5. A method for preparing the color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions as set forth in any one of claims 1-4, which is characterized in that: the method comprises the following steps: aqueous fluorocarbon resin emulsion, organic silicon resin and nano TiO 2 Mixing concentrated slurry, nano zinc oxide, antimony oxide, film forming auxiliary agent, other auxiliary agents, color mixing color paste and water, and stirring and dispersing uniformly to obtainColor-adjustable fluorocarbon heat-reflecting paint with anti-corrosion and anti-fouling functions.
CN202310164143.5A 2023-02-24 2023-02-24 Color-adjustable fluorocarbon heat reflection coating with anti-corrosion and anti-fouling functions and preparation method thereof Active CN116410636B (en)

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CN106349832A (en) * 2016-08-29 2017-01-25 浙江德尔福新型建材有限公司 Colorful, aqueous and elastic fluorocarbon reflective insulation coating and preparing method thereof
CN110256287A (en) * 2019-05-08 2019-09-20 山东汉鸿新材料科技有限公司 The synthetic method of high-content N- fatty alkyl -1,3- trimethylene diamines

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JP2006328386A (en) * 2005-04-28 2006-12-07 Sanyo Chem Ind Ltd Method for producing aggregation-preventive aqueous-dispersion slurry coating
JP2008069247A (en) * 2006-09-13 2008-03-27 Toyota Motor Corp Aqueous disperse slurry coating, method for producing the same, and coating film
CN103013241A (en) * 2012-11-28 2013-04-03 大连裕祥科技集团有限公司 Fluorocarbon nanometer solar heat-insulation reflective paint, preparation method and using method thereof
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