CN110643244A - Reflective heat-insulating coating for buildings and preparation method thereof - Google Patents

Reflective heat-insulating coating for buildings and preparation method thereof Download PDF

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CN110643244A
CN110643244A CN201910972624.2A CN201910972624A CN110643244A CN 110643244 A CN110643244 A CN 110643244A CN 201910972624 A CN201910972624 A CN 201910972624A CN 110643244 A CN110643244 A CN 110643244A
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parts
heat
reflective
agent
insulating
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曾新明
王月琴
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HANGZHOU MAKEDOLLAR ENVIRONMENTAL PROTECTION NEW MATERIAL Co Ltd
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HANGZHOU MAKEDOLLAR ENVIRONMENTAL PROTECTION NEW MATERIAL Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D133/00Coating 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04Homopolymers or copolymers of esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/004Reflecting paints; Signal paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16Antifouling paints; Underwater paints
    • C09D5/1687Use of special additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045Sulfates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention relates to the technical field of building reflective heat-insulating coatings, and discloses a building reflective heat-insulating coating which comprises rutile titanium dioxide, an infrared reflecting agent, modified ceramic microspheres, alcohol-soluble acrylic resin A, alcohol-soluble acrylic resin B, a heat-insulating reflecting material, mica powder, barium sulfate, talcum powder, a mildew preventive, a defoaming agent, a fluorine-silicon water-based additive, superfine heat-insulating pigment and filler, infrared radiation filler, heavy calcium carbonate, a thickening agent, a film-forming additive, polyacrylonitrile-based carbon fibers, chromium chloride, dimethyl silicone oil, triethylene tetramine and reflective heat-insulating colored sand. The infrared reflecting agent, the modified ceramic microspheres, the heat insulation reflecting material, the fluorine-silicon aqueous additive and the superfine heat insulation pigment and filler have higher reflectivity for most wavelengths in a radiation spectrum of sunlight, so that the temperature of the outer wall of a building is reduced, the heat absorption of the building is reduced, the indoor and outdoor temperature difference is reduced, and the energy-saving effect is achieved.

Description

Reflective heat-insulating coating for buildings and preparation method thereof
Technical Field
The invention relates to the technical field of building reflective insulation coatings, in particular to a building reflective insulation coating and a preparation method thereof.
Background
With the continuous promotion of building energy conservation in China, higher requirements are put forward for building energy conservation work, at present, the external wall heat preservation technology develops towards the direction of integration of high efficiency, thin layer, heat insulation, water prevention and external protection, research on reflective heat insulation coatings is also deepened continuously, the temperature of the external wall surface in summer can reach 70 ℃ in areas with cold summer, winter and warm summer, which has very adverse effects on the aging resistance, contamination resistance, crack resistance, water prevention and other performances of the coatings, and the high wall surface temperature increases the conduction of heat to the indoor through the wall heat preservation and heat insulation layer, so that the energy conservation effect of the external wall heat preservation system is reduced.
At present, most of the existing coatings used on the outer surface of a building are not environment-friendly, and have a large amount of radiation heat-conducting substances, after the coatings are used, the coatings which can not reflect light and heat can absorb a large amount of heat to be conducted to a wall body in a heat conduction mode, after the wall body is heated, the indoor temperature can rise, the service life of the air conditioner can be prolonged to a great extent, as is well known, Freon is added in the using process of the air conditioner, the Freon is one of substances which can destroy the atmospheric layer and is not beneficial to the protection of the environment, and after the heat absorption, the coating on the outer surface of the building can crack and peel under the condition of large temperature difference between day and night, the pollution resistance can be poor while the appearance is influenced, rainwater can be accumulated at the cracked part of the coating, so that the building surface is blackened, and the temperature insulation effect of the coating is limited, the stability of the coating is poor.
In order to solve the problems, the inventor provides the reflective insulation coating for the building and the preparation method thereof, the reflective insulation coating has the advantages of aging resistance, stain resistance, crack resistance, water resistance and the like, the reflection performance of the building outer surface to sunlight is enhanced, the absorption of the outer wall to sunlight heat radiation is reduced, and the sunlight reflection and insulation functions are obviously improved.
Disclosure of Invention
The invention adopts the following technical scheme for realizing the technical purpose: a reflective thermal insulation coating for buildings is composed of the following raw materials in parts by weight:
15-30 parts of rutile titanium dioxide;
5-15 parts of an infrared reflecting agent;
1-3 parts of modified ceramic microspheres;
15-20 parts of alcohol-soluble acrylic resin A;
30-35 parts of alcohol-soluble acrylic resin B;
4-10 parts of a heat insulation reflecting material;
5-30 parts of mica powder;
10-20 parts of barium sulfate;
10-15 parts of talcum powder;
0.5-3 parts of a mildew preventive;
2-5 parts of a defoaming agent;
3-5 parts of a fluorine-silicon aqueous auxiliary agent;
35-50 parts of superfine heat-insulating pigment and filler;
10-15 parts of infrared radiation filler
3-13 parts of heavy calcium carbonate
4-10 parts of a thickening agent;
6-10 parts of a film-forming assistant;
8-10 parts of polyacrylonitrile-based carbon fiber;
2-3 parts of chromium chloride;
2-3 parts of dimethyl silicone oil;
0.7-1.2 parts of triethylene tetramine;
100-300 parts of reflective heat-insulation colored sand;
50-70 parts of water;
30-50 parts of a pH regulator;
100-200 parts of glass beads.
Further, the preparation method of the modified ceramic microspheres comprises the following steps: uniformly mixing and melting 20 parts by weight of polylactic resin, 5 parts by weight of dispersible rubber powder and 0.1 part by weight of titanium dioxide powder, then heating ceramic microspheres to 90-100 ℃ in a turnover type mixing reaction kettle, spraying the molten mixture on the surfaces of the vitrified micro bubbles, and turning and mixing for 45 minutes.
Further, the mildew preventive is tetrachloroisophthalonitrile or 2-n-octyl-4-isothiazoline-3-ketone.
Further, the defoaming agent is polydimethylsiloxane solution or mineral oil.
Further, the mildew preventive is an isothiazolinone derivative or a benzimidazole ester compound and a derivative thereof.
Furthermore, the glass beads are vacuum or nitrogen-filled glass beads with the particle size of 300-500 meshes.
According to the reflective thermal insulation coating for the building, a preparation method of the reflective thermal insulation coating for the building is provided, and comprises the following steps:
s1, weighing the raw materials according to the formula ratio, and mixing mica powder, barium sulfate, talcum powder, a thickening agent, mica powder and water to obtain an emulsion solvent;
s2, measuring rutile type dioxide, a film forming aid, an infrared reflecting agent, modified ceramic, a heat insulation reflecting material, a fluorine-silicon aqueous aid, superfine heat insulation pigment filler, an infrared radiation filler, ground limestone, polyacrylonitrile-based carbon fiber, chromium chloride, dimethyl silicone oil, triethylene tetramine, reflective heat insulation colored sand and glass beads in a formula ratio, adding the mixture into a reaction kettle, stirring, adding alcohol-soluble acrylic resin and alcohol-soluble acrylic resin, and dissolving and mixing the mixture uniformly to obtain a prepared mixed emulsion;
s3, weighing the mildew preventive, the defoaming agent and the thickening agent according to the formula amount, and adding the mildew preventive, the defoaming agent and the thickening agent into the prepared mixed emulsion for later use;
s4, continuously stirring and mixing the prepared mixed emulsion obtained in the step S3 in a reaction kettle, dropwise adding the emulsifying solvent obtained in the step S1, stirring and mixing, maintaining the reaction temperature, adjusting the pH value to 7, filtering and discharging to obtain the reflective heat-insulating coating.
The invention has the following beneficial effects:
1. according to the reflective heat-insulation coating for the building and the preparation method thereof, through the dimethyl silicone oil, the polyacrylonitrile-based carbon fiber, the reflective heat-insulation colored sand, the heat-insulation reflective material and the superfine heat-insulation pigment and filler, the reflective heat-insulation energy-saving coating for the outer surface of the building, provided by the invention, has excellent elongation at break, and can ensure that the coating on the outer surface of the building can not crack and peel due to expansion with heat and contraction with cold under the condition of large temperature difference between day and night, so that the stain resistance, crack resistance, water resistance and other performances of the outer surface of the building are improved, and meanwhile, the coating can not crack, and the heat-insulation effect is also improved.
2. According to the building reflective heat-insulating coating and the preparation method thereof, the infrared reflecting agent, the modified ceramic microspheres, the heat-insulating reflecting material, the fluorine-silicon aqueous auxiliary agent and the superfine heat-insulating pigment and filler have higher reflectivity for most wavelengths in the radiation spectrum of sunlight, so that the temperature of the outer wall of a building is reduced, the heat absorption of the building is reduced, the indoor and outdoor temperature difference is reduced, the power consumption of refrigeration equipment is reduced, and the effect of saving energy is achieved.
3. According to the reflective heat-insulating coating for the building and the preparation method thereof, after the coating is colored on the surface of the building, the coating has the advantages of environmental protection, no pollution, radiation reflection, no heavy metal, simple manufacture, convenient use, good coating stability and good heat insulation effect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The invention is further described below by way of examples:
the first embodiment is as follows:
a reflective heat-insulating coating for buildings comprises rutile titanium dioxide, an infrared reflecting agent, modified ceramic microspheres, alcohol-soluble acrylic resin A, alcohol-soluble acrylic resin B, a heat-insulating reflecting material, mica powder, barium sulfate, talcum powder, a mildew preventive, a defoaming agent, a fluorine-silicon water-based auxiliary agent, superfine heat-insulating pigment and filler, an infrared radiation filler, heavy calcium carbonate, a thickening agent, a film-forming auxiliary agent, polyacrylonitrile-based carbon fibers, chromium chloride, dimethyl silicone oil, triethylene tetramine, reflective heat-insulating colored sand, water, a pH regulator and glass microspheres.
The preparation method of the modified ceramic microspheres comprises the following steps: uniformly mixing and melting 20 parts by weight of polylactic resin, 5 parts by weight of dispersible rubber powder and 0.1 part by weight of titanium dioxide powder, then heating ceramic microspheres to 90-100 ℃ in a turnover type mixing reaction kettle, spraying the molten mixture on the surfaces of the vitrified micro bubbles, and turning and mixing for 45 minutes.
Wherein the mildew preventive is tetrachloroisophthalonitrile or 2-n-octyl-4-isothiazoline-3-ketone.
Wherein the defoaming agent is polydimethylsiloxane solution or mineral oil.
Wherein the mildew preventive is isothiazolinone derivatives or benzimidazole ester compounds and derivatives thereof.
Wherein the glass beads are vacuum or nitrogen-filled glass beads with the particle size of 300-500 meshes.
According to the reflective heat-insulating energy-saving coating for the outer surface of the building, the preparation method of the reflective heat-insulating energy-saving coating for the outer surface of the building is provided, and comprises the following steps:
s1, preparing the following raw materials in percentage by mass:
15 parts of rutile titanium dioxide, 5 parts of an infrared reflecting agent, 1 part of modified ceramic microspheres, 15 parts of alcohol-soluble acrylic resin A, 5 parts of alcohol-soluble acrylic resin B, 4 parts of a heat-insulating reflecting material, 5 parts of mica powder, 10 parts of barium sulfate, 10 parts of talcum powder, 0.5 part of a mildew preventive, 2 parts of a defoaming agent, 3 parts of a fluorosilicone aqueous auxiliary agent, 35 parts of a superfine heat-insulating pigment and filler, 10 parts of an infrared radiation filler, 3 parts of heavy calcium carbonate, 4 parts of a thickening agent, 6 parts of a film-forming auxiliary agent, 8 parts of polyacrylonitrile-based carbon fibers, 2 parts of chromium chloride, 2 parts of dimethyl silicone oil, 0.7 part of triethylene tetramine, 100 parts of reflective heat-insulating colored sand, 50 parts of water, 30 parts of a pH regulator and 100 parts of glass microspheres;
s2, weighing the raw materials according to the formula ratio, and mixing mica powder, barium sulfate, talcum powder, a thickening agent, mica powder and water to obtain an emulsion solvent;
s3, measuring rutile type dioxide, a film forming aid, an infrared reflecting agent, modified ceramic, a heat insulation reflecting material, a fluorine-silicon aqueous aid, superfine heat insulation pigment filler, an infrared radiation filler, ground limestone, polyacrylonitrile-based carbon fiber, chromium chloride, dimethyl silicone oil, triethylene tetramine, reflective heat insulation colored sand and glass beads in a formula ratio, adding the mixture into a reaction kettle, stirring, adding alcohol-soluble acrylic resin and alcohol-soluble acrylic resin, and dissolving and mixing the mixture uniformly to obtain a prepared mixed emulsion;
s4, weighing the mildew preventive, the defoaming agent and the thickening agent according to the formula amount, and adding the mildew preventive, the defoaming agent and the thickening agent into the prepared mixed emulsion for later use;
s5, continuously stirring and mixing the prepared mixed emulsion obtained in the step S3 in a reaction kettle, dropwise adding the emulsifying solvent obtained in the step S1, stirring and mixing, maintaining the reaction temperature, adjusting the pH value to 7, filtering and discharging to obtain the reflective heat-insulating coating.
Example two:
the preparation method of the reflective heat-insulating energy-saving coating for the outer surface of the building comprises the following steps:
s1, preparing the following raw materials in percentage by mass:
22.5 parts of rutile type titanium dioxide, 10 parts of infrared reflecting agent, 1.5 parts of modified ceramic microspheres, 17.5 parts of alcohol-soluble acrylic resin A, 62.5 parts of alcohol-soluble acrylic resin B, 7 parts of heat insulation reflecting material, 17.5 parts of mica powder, 15 parts of barium sulfate, 12.5 parts of talcum powder, 1.75 parts of mildew preventive, 3.5 parts of defoaming agent, 4 parts of fluorine-silicon water-based auxiliary agent, 42.5 parts of superfine heat insulation pigment and filler, 12.5 parts of infrared radiation filler, 8 parts of heavy calcium carbonate, 7 parts of thickening agent, 9 parts of film-forming auxiliary agent carbon fiber, 2.5 parts of chromium chloride, 2.5 parts of dimethyl silicone oil, 0.95 part of triethylene tetramine, 9 parts of polyacrylonitrile-based carbon fiber, 200 parts of reflective heat insulation colored sand, 60 parts of water, 40 parts of PH regulator and 150 parts of glass microspheres;
s2, weighing the raw materials according to the formula ratio, and mixing mica powder, barium sulfate, talcum powder, a thickening agent, mica powder and water to obtain an emulsion solvent;
s3, measuring rutile type dioxide, a film forming aid, an infrared reflecting agent, modified ceramic, a heat insulation reflecting material, a fluorine-silicon aqueous aid, superfine heat insulation pigment filler, an infrared radiation filler, ground limestone, polyacrylonitrile-based carbon fiber, chromium chloride, dimethyl silicone oil, triethylene tetramine, reflective heat insulation colored sand and glass beads in a formula ratio, adding the mixture into a reaction kettle, stirring, adding alcohol-soluble acrylic resin and alcohol-soluble acrylic resin, and dissolving and mixing the mixture uniformly to obtain a prepared mixed emulsion;
s4, weighing the mildew preventive, the defoaming agent and the thickening agent according to the formula amount, and adding the mildew preventive, the defoaming agent and the thickening agent into the prepared mixed emulsion for later use;
s5, continuously stirring and mixing the prepared mixed emulsion obtained in the step S3 in a reaction kettle, dropwise adding the emulsifying solvent obtained in the step S1, stirring and mixing, maintaining the reaction temperature, adjusting the pH value to 7, filtering and discharging to obtain the reflective heat-insulating coating.
Example three:
the preparation method of the reflective heat-insulating energy-saving coating for the outer surface of the building comprises the following steps:
s1, preparing the following raw materials in percentage by mass:
30 parts of rutile titanium dioxide, 15 parts of infrared reflecting agent, 3 parts of modified ceramic microspheres, 20 parts of alcohol-soluble acrylic resin A, 35 parts of alcohol-soluble acrylic resin B, 10 parts of heat-insulating reflecting material, 30 parts of mica powder, 20 parts of barium sulfate, 15 parts of talcum powder, 3 parts of mildew preventive, 5 parts of defoaming agent, 5 parts of fluorine-silicon water-based auxiliary agent, 50 parts of superfine heat-insulating pigment and filler, 15 parts of infrared radiation filler, 13 parts of heavy calcium carbonate, 10 parts of thickening agent, 10 parts of film-forming auxiliary agent, 10 parts of polyacrylonitrile-based carbon fibers, 3 parts of chromium chloride, 3 parts of dimethyl silicone oil, 1.2 parts of triethylene tetramine, 300 parts of reflective heat-insulating colored sand, 70 parts of water, 50 parts of pH regulator and 200 parts of glass microspheres;
s2, weighing the raw materials according to the formula ratio, and mixing mica powder, barium sulfate, talcum powder, a thickening agent, mica powder and water to obtain an emulsion solvent;
s3, measuring rutile type dioxide, a film forming aid, an infrared reflecting agent, modified ceramic, a heat insulation reflecting material, a fluorine-silicon aqueous aid, superfine heat insulation pigment filler, an infrared radiation filler, ground limestone, polyacrylonitrile-based carbon fiber, chromium chloride, dimethyl silicone oil, triethylene tetramine, reflective heat insulation colored sand and glass beads in a formula ratio, adding the mixture into a reaction kettle, stirring, adding alcohol-soluble acrylic resin and alcohol-soluble acrylic resin, and dissolving and mixing the mixture uniformly to obtain a prepared mixed emulsion;
s4, weighing the mildew preventive, the defoaming agent and the thickening agent according to the formula amount, and adding the mildew preventive, the defoaming agent and the thickening agent into the prepared mixed emulsion for later use;
s5, continuously stirring and mixing the prepared mixed emulsion obtained in the step S3 in a reaction kettle, dropwise adding the emulsifying solvent obtained in the step S1, stirring and mixing, maintaining the reaction temperature, adjusting the pH value to 7, filtering and discharging to obtain the reflective heat-insulating coating.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The reflective heat-insulating coating for the building is characterized by comprising the following components in parts by weight: the composite material is prepared from the following raw materials in parts by weight:
15-30 parts of rutile titanium dioxide;
5-15 parts of an infrared reflecting agent;
1-3 parts of modified ceramic microspheres;
15-20 parts of alcohol-soluble acrylic resin A;
30-35 parts of alcohol-soluble acrylic resin B;
4-10 parts of a heat insulation reflecting material;
5-30 parts of mica powder;
10-20 parts of barium sulfate;
10-15 parts of talcum powder;
0.5-3 parts of a mildew preventive;
2-5 parts of a defoaming agent;
3-5 parts of a fluorine-silicon aqueous auxiliary agent;
35-50 parts of superfine heat-insulating pigment and filler;
10-15 parts of infrared radiation filler
3-13 parts of heavy calcium carbonate
4-10 parts of a thickening agent;
6-10 parts of a film-forming assistant;
8-10 parts of polyacrylonitrile-based carbon fiber;
2-3 parts of chromium chloride;
2-3 parts of dimethyl silicone oil;
0.7-1.2 parts of triethylene tetramine;
100-300 parts of reflective heat-insulation colored sand;
50-70 parts of water;
30-50 parts of a pH regulator;
100-200 parts of glass beads.
2. The reflective thermal insulation coating for buildings according to claim 1, wherein: the preparation method of the modified ceramic microspheres comprises the following steps: uniformly mixing and melting 20 parts by weight of polylactic resin, 5 parts by weight of dispersible rubber powder and 0.1 part by weight of titanium dioxide powder, then heating ceramic microspheres to 90-100 ℃ in a turnover type mixing reaction kettle, spraying the molten mixture on the surfaces of the vitrified micro bubbles, and turning and mixing for 45 minutes.
3. The reflective thermal insulation coating for buildings according to claim 1, wherein: the mildew preventive is tetrachloroisophthalonitrile or 2-n-octyl-4-isothiazoline-3-ketone.
4. The reflective thermal insulation coating for buildings according to claim 1, wherein: the defoaming agent is polydimethylsiloxane solution or mineral oil.
5. The reflective thermal insulation coating for buildings according to claim 1, wherein: the mildew preventive is isothiazolinone derivatives or benzimidazole ester compounds and derivatives thereof.
6. The reflective thermal insulation coating for buildings according to claim 1, wherein: the glass beads are vacuum or nitrogen-filled glass beads with the particle size of 300-500 meshes.
7. The reflective and heat insulating building paint as claimed in claim 1, and the preparation process includes the following steps:
s1, weighing the raw materials according to the formula ratio, and mixing mica powder, barium sulfate, talcum powder, a thickening agent, mica powder and water to obtain an emulsion solvent;
s2, measuring rutile type dioxide, a film forming aid, an infrared reflecting agent, modified ceramic, a heat insulation reflecting material, a fluorine-silicon aqueous aid, superfine heat insulation pigment filler, an infrared radiation filler, ground limestone, polyacrylonitrile-based carbon fiber, chromium chloride, dimethyl silicone oil, triethylene tetramine, reflective heat insulation colored sand and glass beads in a formula ratio, adding the mixture into a reaction kettle, stirring, adding alcohol-soluble acrylic resin and alcohol-soluble acrylic resin, and dissolving and mixing the mixture uniformly to obtain a prepared mixed emulsion;
s3, weighing the mildew preventive, the defoaming agent and the thickening agent according to the formula amount, and adding the mildew preventive, the defoaming agent and the thickening agent into the prepared mixed emulsion for later use;
s4, continuously stirring and mixing the prepared mixed emulsion obtained in the step S3 in a reaction kettle, dropwise adding the emulsifying solvent obtained in the step S1, stirring and mixing, maintaining the reaction temperature, adjusting the pH value to 7, filtering and discharging to obtain the reflective heat-insulating coating.
CN201910972624.2A 2019-10-14 2019-10-14 Reflective heat-insulating coating for buildings and preparation method thereof Pending CN110643244A (en)

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CN111217570A (en) * 2020-01-15 2020-06-02 中国十七冶集团有限公司 Preparation method of external wall heat insulation system with heat insulation daub reflective heat insulation coating
CN112251098A (en) * 2020-11-03 2021-01-22 王洪磊 Waterproof heat-insulation exterior wall coating for building and preparation method thereof

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CN106634349A (en) * 2016-12-21 2017-05-10 兰州科天环保节能科技有限公司 Color reflection heat insulation and temperature reduction paint and preparation method thereof
CN106978024A (en) * 2017-05-09 2017-07-25 北京冠诚永创工程技术有限公司 A kind of energy-conserving and environment-protective solar heat reflecting and heat insulating material and preparation method thereof
CN108707385A (en) * 2018-06-29 2018-10-26 芜湖市棠华建材科技有限公司 A kind of environment-friendly reflective architectural heat insulation coating and preparation method thereof
CN110156365A (en) * 2019-05-31 2019-08-23 常州红橙彩砂有限公司 A kind of reflective insulation color sand, preparation method and application

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111217570A (en) * 2020-01-15 2020-06-02 中国十七冶集团有限公司 Preparation method of external wall heat insulation system with heat insulation daub reflective heat insulation coating
CN112251098A (en) * 2020-11-03 2021-01-22 王洪磊 Waterproof heat-insulation exterior wall coating for building and preparation method thereof

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