CN113150637A - Water-based heat-insulating transparent coating for building glass curtain wall and preparation method thereof - Google Patents

Water-based heat-insulating transparent coating for building glass curtain wall and preparation method thereof Download PDF

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Publication number
CN113150637A
CN113150637A CN202110450920.3A CN202110450920A CN113150637A CN 113150637 A CN113150637 A CN 113150637A CN 202110450920 A CN202110450920 A CN 202110450920A CN 113150637 A CN113150637 A CN 113150637A
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water
transparent coating
insulating transparent
curtain wall
glass curtain
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施永权
章新杰
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Shanghai Yusheng Intelligent Energy Saving Equipment Co ltd
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Shanghai Yusheng Intelligent Energy Saving Equipment Co ltd
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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
    • C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • C09D133/16—Homopolymers or copolymers of esters containing halogen 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
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20—Diluents or solvents
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/10—Transparent films; Clear coatings; Transparent materials

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention provides a water-based heat-insulating transparent coating for a glass curtain wall of a building and a preparation method thereof, relating to the technical field of water-based coatings, 25-40% of fluorine-silicon modified water-based acrylic emulsion, 10-20% of water-based polyurethane emulsion, 8-15% of bismuth-doped nano tin antimony oxide, 6-12% of nano silicon dioxide, 2-4% of sepiolite fiber, 4-6% of dodecyl alcohol ester, 0.1-1% of sodium carboxymethylcellulose, 0.1-0.5% of adhesion promoter, 0.1-0.5% of silane coupling agent, 0.1-0.5% of wetting dispersant, 0.1-0.5% of organic silicon defoamer, 0.1-0.5% of flatting agent and the balance of deionized water, wherein the water-based heat-insulating transparent coating has the performance meeting the national standard, and the nano heat-insulating transparent coating has the advantages of high hardness, high light transmittance, strong adhesion and low heat conductivity, has excellent heat insulating performance.

Description

Water-based heat-insulating transparent coating for building glass curtain wall and preparation method thereof
Technical Field
The invention relates to a water-based paint technology, in particular to a water-based heat-insulating transparent paint for a glass curtain wall of a building and a preparation method thereof.
Background
The glass curtain wall is a modern new wall body, and the greatest characteristic of the glass curtain wall endows the building with the characteristics of organically unifying factors such as building aesthetics, building functions, building energy conservation, building structures and the like, so that the building presents different tones from different angles, and gives dynamic beauty to people along with the change of sunlight, moonlight and lamplight. The glass curtain wall serving as an outer protective structure of a building not only can meet basic requirements of people on lighting, sunshine, ventilation, visual field and the like, but also has excellent heat preservation, heat insulation and sound insulation performances, so that a comfortable and quiet indoor environment can be provided for people, the requirements of people on energy conservation, environmental protection, thermal comfort conditions improvement, living standard improvement and social sustainable development realization can be met. The energy consumption of buildings (including construction energy consumption and use energy consumption) in China accounts for about one fourth of the total energy consumption of the whole country, the energy consumption of buildings accounts for more than one half of the energy consumption of buildings, and the energy consumption of air conditioners and heating accounts for about one half of the energy consumption of buildings. The key point of building energy conservation is to control heating and cooling energy consumption.
The glass curtain wall of the modern high-rise building adopts the hollow glass which is formed by combining mirror glass and common glass, dry air or inert gas is filled into an interlayer, the hollow glass is divided into two layers and three layers, and the two layers of hollow glass are sealed by two layers of glass to form an interlayer space; the triple-layer glass is formed by two interlayer spaces formed by the triple-layer glass. The hollow glass has the advantages of sound insulation, heat insulation, frost prevention, moisture prevention, high wind pressure resistance and the like. However, the construction cost is increased along with the increase of the number of the layers, most high-rise buildings adopt glass curtain walls made of single-layer glass, and the heat insulation effect is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a water-based heat-insulating transparent coating for a glass curtain wall of a building and a preparation method thereof. The coating can absorb near infrared radiation to a certain extent. If the coating is applied to room glass, the heat preservation function can be realized to a certain extent; the coating is waterproof and has certain self-cleaning capability; and the coating is water-based coating, does not contain toxic and harmful substances, and is friendly to human body and environment.
The technical problem to be solved by the invention is as follows: based on the problems, the invention provides a water-based heat-insulating transparent coating for a glass curtain wall of a building and a preparation method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: a water-based heat-insulating transparent coating for a glass curtain wall of a building comprises the following components in percentage by weight:
25-40% of fluorine-silicon modified water-based acrylic emulsion, 10-20% of water-based polyurethane emulsion, 8-15% of bismuth-doped nano tin antimony oxide, 6-12% of nano silicon dioxide, 2-4% of sepiolite fiber, 4-6% of dodecyl alcohol ester, 0.1-1% of sodium carboxymethyl cellulose, 0.1-0.5% of adhesion promoter, 0.1-0.5% of silane coupling agent, 0.1-0.5% of wetting dispersant, 0.1-0.5% of organic silicon defoamer, 0.1-0.5% of flatting agent and the balance of deionized water.
Further, preparing the fluorine-silicon modified water-based acrylic emulsion. Mixing propylene glycol methyl ether and isopropanol, stirring and heating to 60-70 ℃, adding a certain amount of mixed monomer consisting of methyl methacrylate, acrylic acid and butyl acrylate, stirring at 600r/min for 5-10min, adding azodiisobutyronitrile, heating to reflux, slowly adding the rest mixed monomer, after dropwise adding, carrying out heat preservation reaction for 3-6h, cooling to 45-55 ℃, adjusting the pH of the system to 7-8 by triethylamine, stirring at 1000r/min for 5-10min, adding deionized water, transferring to a high-speed shearing dispersion emulsifying machine, carrying out high-speed dispersion emulsification at 2000r/min for 30-50min by 1800-2000r/min, and filtering.
Further, the fluorine-silicon modified waterborne acrylic resin and the waterborne polyurethane are both film-forming resins.
Further, the bismuth-doped nano tin antimony oxide is a functional filler, and the silane coupling agent, the wetting dispersant, the organic silicon defoamer, the adhesion promoter and the flatting agent are auxiliaries.
The functional coating capable of adjusting the temperature is prepared by adopting a physical stirring method and specifically comprises the following steps of adding bismuth-doped nano tin antimony oxide into deionized water, uniformly stirring, adding sodium carboxymethylcellulose, an adhesion promoter, a silane coupling agent, a wetting dispersant, an organic silicon defoamer and a flatting agent, ultrasonically oscillating and dispersing for 20-30min, adding the obtained slurry into a mixed emulsion obtained by mechanically blending a fluorine-silicon modified aqueous acrylic emulsion and an aqueous polyurethane emulsion, dispersing and grinding for 40-50min by using a dispersion grinder, standing for 10-15min, and subpackaging.
The invention has the beneficial effects that:
(1) the functional monomer is introduced to modify the aqueous acrylic emulsion, F atoms have strong electronegativity, C-F bond stability is good, the surface energy of the coating is reduced, chemical inertness is good, acid resistance, alkali resistance and solvent resistance are greatly improved, the weather resistance and mechanical property of the coating are improved by introducing the C-Si bond, hydrogen bonds or branch bonds can be formed between the molecular chains when the aqueous polyurethane emulsion is added into the mixed and inter-colloidal particles and are agglomerated together, the compatibility between the two components is high, and the compactness of the coating is enhanced by the inter-penetration and entanglement of the molecular chains, and the waterproof property is improved.
(2) Compared with indium tin oxide and tin oxyfluoride, the nano tin antimony oxide has lower cost, has good visible light permeability and can effectively block infrared rays, after bismuth is doped, electron holes with certain concentration are formed in a coating film to cause the absorption of free carriers, and the nano tin antimony oxide is particularly characterized by absorbing ultraviolet rays in the sun, transmitting visible light and blocking infrared heat radiation, and because the frequency of incident solar light is higher than the vibration frequency of active particles in the coating film, high reflection of ions is caused, and the nano tin antimony oxide has a reflection and blocking effect on solar energy in an infrared band.
Detailed Description
The invention will now be further illustrated by reference to specific examples, which are intended to be illustrative of the invention and are not intended to be a further limitation of the invention.
Example 1
A water-based heat-insulating transparent coating for a glass curtain wall of a building comprises the following components in percentage by weight:
36% of fluorine-silicon modified water-based acrylic emulsion, 15% of water-based polyurethane emulsion, 14% of bismuth-doped nano tin antimony oxide, 8% of nano silicon dioxide, 3% of sepiolite fiber, 5% of dodecanol ester, 0.2% of sodium carboxymethylcellulose, an adhesion promoter HSMAddtiax 9100.3%, 0.1% of a silane coupling agent, DY-90060.1% of a wetting dispersant, SAG-6300.1% of an organic silicon defoamer, a flatting agent MONENG-10710.2% and the balance of deionized water.
The preparation method comprises the following steps:
adding bismuth-doped nano tin antimony oxide into deionized water, stirring uniformly, adding sodium carboxymethylcellulose, an adhesion promoter, a silane coupling agent, a wetting dispersant, an organic silicon defoamer and a flatting agent, dispersing for 22min by ultrasonic oscillation, adding the obtained slurry into a mixed emulsion obtained by mechanically blending a fluorine-silicon modified aqueous acrylic emulsion and an aqueous polyurethane emulsion, dispersing and grinding for 42min at 30 ℃ by using a dispersion grinder, standing for 14min, and subpackaging.
Example 2
The water-based heat-insulating transparent coating for the glass curtain wall of the building comprises, by weight, 36% of fluorine-silicon modified water-based acrylic emulsion, 12% of water-based polyurethane emulsion, 12% of bismuth-doped nano tin antimony oxide, 10% of nano silicon dioxide, 2.5% of sepiolite fiber, 5% of dodecyl alcohol ester, 0.3% of sodium carboxymethyl cellulose, 0.1% of adhesion promoter HSM Addtiax 9100.4, 0.1% of silane coupling agent, DY-90060.2% of wetting dispersant, SAG-6300.2% of organic silicon defoamer, 0 MONENG-10710.4% of flatting agent, and the balance deionized water.
The preparation method comprises the following steps: adding bismuth-doped nano tin antimony oxide into deionized water, stirring uniformly, adding sodium carboxymethylcellulose, an adhesion promoter, a silane coupling agent, a wetting dispersant, an organic silicon defoamer and a flatting agent, dispersing for 20min by ultrasonic oscillation, adding the obtained slurry into a mixed emulsion obtained by mechanically blending a fluorine-silicon modified aqueous acrylic emulsion and an aqueous polyurethane emulsion, dispersing and grinding for 48min at 35 ℃ by using a dispersion grinder, standing for 10min, and subpackaging.
Example 3
The water-based heat-insulating transparent coating for the glass curtain wall of the building comprises, by weight, 30% of fluorine-silicon modified water-based acrylic emulsion, 18% of water-based polyurethane emulsion, 10% of bismuth-doped nano tin antimony oxide, 8% of nano silicon dioxide, 3% of sepiolite fiber, 6% of dodecyl alcohol ester, 0.5% of sodium carboxymethyl cellulose, 9100.2% of adhesion promoter HSMAddtiax, 0.1% of silane coupling agent, DY-90060.2% of wetting dispersant, SAG-6300.5% of organic silicon defoamer, MONENG-10710.3% of flatting agent, and the balance deionized water.
The preparation method comprises the following steps: adding bismuth-doped nano tin antimony oxide into deionized water, stirring uniformly, adding sodium carboxymethylcellulose, an adhesion promoter, a silane coupling agent, a wetting dispersant, an organic silicon defoamer and a flatting agent, dispersing for 30min by ultrasonic oscillation, adding the obtained slurry into a mixed emulsion obtained by mechanically blending a fluorine-silicon modified aqueous acrylic emulsion and an aqueous polyurethane emulsion, dispersing and grinding for 50min at 35 ℃ by using a dispersion grinder, standing for 12min, and subpackaging.
The results of the performance test of the phase-change microcapsules prepared in the above examples are shown in the following table:
table 1:
Figure BDA0003038645230000051
Figure BDA0003038645230000061
table 2:
Figure BDA0003038645230000062
from the above table 1 and table 2, it can be seen that the performance of the water-based heat-insulating transparent coating material of the invention meets the national standard, and the nano transparent heat-insulating coating material of the invention can absorb ultraviolet rays in the sun, transmit visible light, block infrared heat radiation, and has high hardness, light transmittance, strong adhesive force, low thermal conductivity, and excellent heat-insulating and heat-preserving performance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (5)

1. A water-based heat-insulating transparent coating for a glass curtain wall of a building is characterized by comprising the following components in percentage by weight:
25-40% of fluorine-silicon modified water-based acrylic emulsion, 10-20% of water-based polyurethane emulsion, 8-15% of bismuth-doped nano tin antimony oxide, 6-12% of nano silicon dioxide, 2-4% of sepiolite fiber, 4-6% of dodecyl alcohol ester, 0.1-1% of sodium carboxymethyl cellulose, 0.1-0.5% of adhesion promoter, 0.1-0.5% of silane coupling agent, 0.1-0.5% of wetting dispersant, 0.1-0.5% of organic silicon defoamer, 0.1-0.5% of flatting agent and the balance of deionized water.
2. The water-based heat-insulating transparent coating for the glass curtain wall of the building as claimed in claim 1, which is characterized by comprising the following components in percentage by weight:
36% of fluorine-silicon modified water-based acrylic emulsion, 12% of water-based polyurethane emulsion, 12% of bismuth-doped nano tin antimony oxide, 10% of nano silicon dioxide, 2.5% of sepiolite fiber, 5% of dodecyl alcohol ester, 0.3% of sodium carboxymethyl cellulose, 0.4% of adhesion promoter, 0.1% of silane coupling agent, 0.2% of wetting dispersant, 0.2% of organic silicon defoamer, 0.4% of flatting agent and the balance of deionized water.
3. The water-based heat insulating transparent coating for building glass curtain wall as claimed in claim 1, wherein: the fluorine-silicon modified waterborne acrylic resin and the waterborne polyurethane are film-forming resins.
4. The water-based heat insulating transparent coating for building glass curtain wall as claimed in claim 1, wherein: the bismuth-doped nano tin antimony oxide is a functional filler, and the silane coupling agent, the wetting dispersant, the organic silicon defoamer, the adhesion promoter and the flatting agent are auxiliaries.
5. A preparation method of a water-based heat-insulating transparent coating for a building glass curtain wall is characterized by comprising the following steps: the preparation method adopts a physical stirring method, and specifically comprises the following steps:
s1: mixing propylene glycol methyl ether and isopropanol, stirring and heating to 60-70 ℃;
s2: then adding a certain amount of mixed monomer consisting of methyl methacrylate, acrylic acid and butyl acrylate, stirring for 5-10min at the speed of 600r/min, adding azodiisobutyronitrile, heating to reflux, and slowly adding the rest mixed monomer;
s3: after the dropwise addition, the reaction is carried out for 3-6h, the temperature is reduced to 45-55 ℃, triethylamine is used for adjusting the pH value of the system to 7-8, the system is stirred for 5-10min at 1000r/min, then deionized water is added, the mixture is transferred to a high-speed shearing dispersion emulsifying machine, high-speed dispersion emulsification is carried out for 30-50min at 2000r/min at 1800 and 2000r/min, and then the mixture is filtered.
CN202110450920.3A 2021-04-26 2021-04-26 Water-based heat-insulating transparent coating for building glass curtain wall and preparation method thereof Pending CN113150637A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114479643A (en) * 2022-02-07 2022-05-13 陕西理工大学 Energy-saving environment-friendly coated glass coating for glass curtain wall and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106167657A (en) * 2015-05-22 2016-11-30 刘生金 A kind of aqueous glass transparent reflective heat-insulating coating and preparation method thereof
CN110204967A (en) * 2019-07-02 2019-09-06 哈尔滨拓百世环保涂料有限公司 A kind of increase roofing distributed photovoltaic power generation system photoelectric conversion efficiency nanometer absorption-type insulating moulding coating and application
CN110894389A (en) * 2019-11-29 2020-03-20 安徽领珂数据科技有限公司 Water-based heat-insulating transparent coating for building glass curtain wall and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106167657A (en) * 2015-05-22 2016-11-30 刘生金 A kind of aqueous glass transparent reflective heat-insulating coating and preparation method thereof
CN110204967A (en) * 2019-07-02 2019-09-06 哈尔滨拓百世环保涂料有限公司 A kind of increase roofing distributed photovoltaic power generation system photoelectric conversion efficiency nanometer absorption-type insulating moulding coating and application
CN110894389A (en) * 2019-11-29 2020-03-20 安徽领珂数据科技有限公司 Water-based heat-insulating transparent coating for building glass curtain wall and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114479643A (en) * 2022-02-07 2022-05-13 陕西理工大学 Energy-saving environment-friendly coated glass coating for glass curtain wall and preparation method thereof

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