CN113462291A - Phase-change microcapsule building heat-insulation coating - Google Patents
Phase-change microcapsule building heat-insulation coating Download PDFInfo
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- CN113462291A CN113462291A CN202110707595.4A CN202110707595A CN113462291A CN 113462291 A CN113462291 A CN 113462291A CN 202110707595 A CN202110707595 A CN 202110707595A CN 113462291 A CN113462291 A CN 113462291A
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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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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Abstract
The invention discloses a phase change microcapsule building heat insulation coating, which comprises the following raw materials in parts by weight: 20-30 parts of water-based resin; 50-70 parts of paint color paste; 0.5-1 part of film-forming additive; 0.5-1 part of defoaming agent; 1-2 parts of a leveling agent; 0.5-1.5 parts of flash rust inhibitor; 0.5-1.5 parts of amine neutralizer; 1-5 parts of a rheological additive; 1-5 parts of phase change microcapsules; the coating color paste comprises 45-50 parts of deionized water; 10-11 parts of resin; 7-8 parts of a wetting agent; 1-2 parts of a dispersant; 1-2 parts of a defoaming agent; 31-38 parts of pigment. A preparation method of a phase-change microcapsule building heat-insulation coating comprises the following steps: a. preparing composition color paste; b. adding the water-based resin, the composition color paste, the film-forming assistant, the defoaming agent, the leveling agent, the flash rust inhibitor and the amine neutralizer into a dispersion tank to prepare a pre-dispersion mixture; c. then adding the phase-change microcapsules to uniformly disperse the phase-change microcapsules in the water-based paint. The invention can endow the coating with certain mechanical property and better heat insulation performance.
Description
Technical Field
The invention relates to the coating industry, in particular to a phase-change microcapsule building heat-insulation coating.
Background
The building heat-insulating coating has the performances of high-efficiency sunlight reflectivity, excellent ultraviolet resistance, supernormal pollution resistance, good adhesive force, washing resistance, acid-base corrosion resistance, mildew resistance and the like, and is a novel building heat-insulating material with excellent performance, strong applicability and high technical content in the field of modern building heat insulation. The climate difference of various regions in China is large, the energy-saving design requirements of buildings in different regions are different, in regions which are hot in summer and warm in winter and cold in summer, the hot time in summer is long, the annual average temperature is high, the solar radiation is strong, and the energy consumption of the air conditioner is high due to the continuous high temperature in summer in the regions. Meanwhile, the energy consumption required to lower the temperature inside the building by 1 degree is about 4 times that required to raise the temperature by 1 degree. Therefore, the building heat insulation reflective coating is used for reducing the surface temperature of the outer wall so as to reduce the heat conducted to the indoor through the wall body, is a method for passively utilizing solar energy, and has important significance for saving energy and protecting the environment.
The building heat insulation coating is classified into a barrier type heat insulation coating, a reflective type heat insulation coating and a radiant type heat insulation coating according to different heat insulation mechanisms and heat insulation modes. Patent No. 201310679922.5 reports that a heat-insulating reaction coating prepared by using phytate, kaolinite powder, aluminum silicate and silica sol has good adhesion, waterproof performance and heat-insulating performance by using silica sol and the like as a heat-insulating reaction material. Patent No. 201110215932.4 reports that vitrified small balls are used as heat insulation and preservation materials to replace common expanded perlite and polyphenyl particles as lightweight aggregates of mortar, and the vitrified small balls have low heat conduction coefficients and can prevent heat from transferring to the surface of a substrate. Patent No. 201010160420.8 reports that when a nano material, nano titanium dioxide-coated hollow glass microspheres, and nano tin dioxide particles are added to an aqueous resin, the prepared thermal insulation resistance is low, and the problem of pulverization and the like easily occurs after long-time exposure to air is solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a building heat-insulation and heat-preservation coating of phase-change microcapsules, wherein the phase-change microcapsules can change the form along with the change of temperature and absorb or release a large amount of latent heat, and the coating can be well and uniformly dispersed in the coating, can endow the coating with certain mechanical property and has better heat-insulation and heat-preservation properties when applied to the coating.
In order to solve the technical problems, the invention provides a phase change microcapsule building heat insulation coating, which is characterized in that: the phase change microcapsule building heat insulation coating comprises the following raw materials in parts by weight: 20-30 parts of water-based resin; 50-70 parts of paint color paste; 0.5-1 part of film-forming additive; 0.5-1 part of defoaming agent; 1-2 parts of a leveling agent; 0.5-1.5 parts of flash rust inhibitor; 0.5-1.5 parts of amine neutralizer; 1-5 parts of a rheological additive; 1-5 parts of phase change microcapsules.
The coating color paste comprises 45-50 parts of deionized water; 10-11 parts of resin; 7-8 parts of a wetting agent; 1-2 parts of a dispersant; 1-2 parts of a defoaming agent; 31-38 parts of pigment.
The film forming auxiliary agent is one or more of benzyl alcohol, ethylene glycol butyl ether, dodecyl alcohol ester, ethylene glycol and propylene glycol.
The defoaming agent is one or more of silicone oil, polyether, higher alcohol, mineral oil and vegetable oil.
The flatting agent is one or more of polyacrylic resin, organic silicon resin and fluorocarbon.
The flash rust inhibitor is one or more of sodium nitrite, sodium molybdate and sodium chromate.
The amine neutralizer is one or more of AMP-95, N-dimethylethanolamine and ammonia water.
The rheological additive is one or more of alkali swellable type, polyamine ester type, polyether type, acrylic acid type and hydrated aluminum magnesium silicate type.
The above-mentioned respective substances take one or more meaning that one substance or a combination of substances may be used. The phase change microcapsule of the coating composition is one or more of cobalt oxide, cordierite and the like, and the phase change energy storage material (phase change microcapsule) is prepared by adopting an in-situ polymerization method.
The invention aims to solve another technical problem of providing a preparation method of a phase-change microcapsule building heat-insulation coating, which is characterized by comprising the following steps:
a. 45-50 parts of deionized water; 10-11 parts of resin; 7-8 parts of a wetting agent; 1-2 parts of a dispersant; 1-2 parts of a defoaming agent; 31-38 parts of pigment are fully mixed to prepare a composition color paste;
b. adding water-based resin, composition color paste, a film-forming assistant, a defoaming agent, a leveling agent, an anti-flash rust agent and an amine neutralizer into a dispersion tank according to the mass part of any one of claims 1 to 8, simultaneously adding water into the dispersion tank, wherein the ratio of the mass fraction of the water to the total mass fraction of the mixture is 100:15-20, pre-dispersing is carried out for 15-25 minutes, and the pre-dispersing speed is 750-;
c. and then adjusting the rotating speed of the dispersion tank to 450-550r/min, slowly adjusting the dispersion speed to 1100-1300r/min after adding the phase-change microcapsules, and dispersing for 15-25 minutes to uniformly disperse the phase-change microcapsules in the water-based paint to prepare the water-based paint containing the phase-change microcapsules, wherein the mass ratio of the phase-change microcapsules to the water-based paint is 1-5: 100.
the phase-change energy storage material is prepared by an in-situ polymerization method, changes form along with the change of temperature and absorbs or releases a large amount of latent heat, is applied to the coating, can be well and uniformly dispersed in the coating, can endow the coating with certain mechanical property and better heat insulation performance.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
FIG. 1 is a scanning electron micrograph of the coated end face of an embodiment of the present invention.
Detailed Description
The invention provides a phase change microcapsule building heat insulation coating, which comprises the following raw materials in parts by weight: 20-30 parts of water-based resin; 50-70 parts of paint color paste; 0.5-1 part of film-forming additive; 0.5-1 part of defoaming agent; 1-2 parts of a leveling agent; 0.5-1.5 parts of flash rust inhibitor; 0.5-1.5 parts of amine neutralizer; 1-5 parts of a rheological additive; 1-5 parts of phase change microcapsules. The coating color paste comprises 45-50 parts of deionized water; 10-11 parts of resin; 7-8 parts of a wetting agent; 1-2 parts of a dispersant; 1-2 parts of a defoaming agent; 31-38 parts of pigment. The film forming auxiliary agent is one or more of benzyl alcohol, ethylene glycol butyl ether, dodecyl alcohol ester, ethylene glycol and propylene glycol. The defoaming agent is one or more of silicone oil, polyether, higher alcohol, mineral oil and vegetable oil. The flatting agent is one or more of polyacrylic resin, organic silicon resin and fluorocarbon. The flash rust inhibitor is one or more of sodium nitrite, sodium molybdate and sodium chromate. The amine neutralizer is one or more of AMP-95, N-dimethylethanolamine and ammonia water. The rheological additive is one or more of alkali swellable type, polyamine ester type, polyether type, acrylic acid type and hydrated aluminum magnesium silicate type.
A preparation method of a phase-change microcapsule building heat-insulation coating comprises the following steps: a. 45-50 parts of deionized water; 10-11 parts of resin; 7-8 parts of a wetting agent; 1-2 parts of a dispersant; 1-2 parts of a defoaming agent; 31-38 parts of pigment are fully mixed to prepare a composition color paste; b. adding water-based resin, composition color paste, a film-forming assistant, a defoaming agent, a leveling agent, an anti-flash rust agent and an amine neutralizer into a dispersion tank according to the mass part of any one of claims 1 to 8, simultaneously adding water into the dispersion tank, wherein the ratio of the mass fraction of the water to the total mass fraction of the mixture is 100:15-20, pre-dispersing is carried out for 15-25 minutes, and the pre-dispersing speed is 750-; c. and then adjusting the rotating speed of the dispersion tank to 450-550r/min, slowly adjusting the dispersion speed to 1100-1300r/min after adding the phase-change microcapsules, and dispersing for 15-25 minutes to uniformly disperse the phase-change microcapsules in the water-based paint to prepare the water-based paint containing the phase-change microcapsules, wherein the mass ratio of the phase-change microcapsules to the water-based paint is 1-5: 100.
the preparation of the above-described coating is illustrated by way of example below.
Example 1
45 parts of deionized water; 10 parts of resin; 7 parts of a wetting agent; 1 part of a dispersant; 1 part of a defoaming agent; 31 parts of pigment are fully mixed to prepare composition color paste, 30g of water-based resin, 50g of composition color paste, 1g of film-forming additive, 0.5g of defoaming agent, 0.5g of anti-flash rust agent, 0.5g of amine neutralizer and 17g of water are sequentially added into a dispersion tank for pre-dispersion for 20 minutes, the pre-dispersion speed is set to be 800r/min, a water-based coating pre-dispersion mixture is prepared, the rotating speed is adjusted to be 500r/min, the dispersion speed is slowly adjusted to be 1200r/min after the phase-change microcapsule is added, the phase-change microcapsule is dispersed for 20 minutes, the phase-change microcapsule is uniformly dispersed in the water-based coating, and the water-based coating containing the phase-change microcapsule is prepared, wherein the mass ratio of the phase-change microcapsule to the water-based coating is 1: 100.
the scanning electron microscope image of the coating section of the coating prepared in example 1 is shown in fig. 1, and it can be obviously analyzed that the coating has certain mechanical properties and better heat insulation performance. And the formed coating is detected to obtain the states shown in the following table:
note: 1. and testing the performance index of the reflective coating according to the national standard GB/T20261-2018.
Example 2:
50 parts of deionized water; 11 parts of resin; 8 parts of a wetting agent; 2 parts of a dispersing agent; 2 parts of a defoaming agent; 38 parts of pigment are fully mixed to prepare a composition color paste, 30g of water-based resin, 50g of the composition color paste, 1g of a film-forming additive, 0.5g of a defoaming agent, 0.5g of a leveling agent, 0.5g of an anti-flash rust agent, 0.5g of an amine neutralizing agent and 17g of water are sequentially added into a dispersion tank for pre-dispersion for 20 minutes, the pre-dispersion speed is set to be 800r/min, a water-based paint pre-dispersion mixture is prepared, the rotating speed is adjusted to be 500r/min, 2g of phase-change microcapsule is added, the dispersion speed is slowly adjusted to be 1200r/min, and the phase-change microcapsule is dispersed for 20 minutes to be uniformly dispersed in the water-based paint, so that the water-based paint containing the phase-change microcapsule is prepared, wherein the mass ratio of the phase-change microcapsule to the water-based paint is 2: 100.
example 3:
50 parts of deionized water; 11 parts of resin; 7 parts of a wetting agent; 2 parts of a dispersing agent; 2 parts of a defoaming agent; fully mixing 35 parts of pigment to prepare a composition color paste, sequentially adding 30g of water-based resin, 50g of the composition color paste, 1g of a film-forming additive, 0.5g of a defoaming agent, 0.5g of a leveling agent, 0.5g of an anti-flash rust agent, 0.5g of an amine neutralizing agent and 17g of water into a dispersion tank for pre-dispersion for 20 minutes, setting the pre-dispersion speed to be 800r/min, preparing a water-based paint pre-dispersion mixture, adjusting the rotating speed to be 500r/min, adding 3g of phase-change microcapsules, slowly adjusting the dispersion speed to be 1200r/min, dispersing for 20 minutes, uniformly distributing the phase-change microcapsules in the water-based paint, and preparing the water-based paint containing the phase-change microcapsules, wherein the mass ratio of the phase-change microcapsules to the water-based paint is 3: 100.
the present invention may also have other embodiments, and other technical solutions formed in the descriptions of the claims are not described in detail, and the present invention is not limited by the above embodiments, and equivalent changes and simple substitutions based on the above embodiments of the present invention are within the protection scope of the present invention.
Claims (9)
1. A phase-change microcapsule building heat-insulation coating is characterized in that: the phase change microcapsule building heat insulation coating comprises the following raw materials in parts by weight: 20-30 parts of water-based resin; 50-70 parts of paint color paste; 0.5-1 part of film-forming additive; 0.5-1 part of defoaming agent; 1-2 parts of a leveling agent; 0.5-1.5 parts of flash rust inhibitor; 0.5-1.5 parts of amine neutralizer; 1-5 parts of a rheological additive; 1-5 parts of phase change microcapsules.
2. The phase-change microcapsule building thermal insulation coating as claimed in claim 1, wherein: the coating color paste comprises 45-50 parts of deionized water; 10-11 parts of resin; 7-8 parts of a wetting agent; 1-2 parts of a dispersant; 1-2 parts of a defoaming agent; 31-38 parts of pigment.
3. The phase-change microcapsule building thermal insulation coating as claimed in claim 1, wherein: the film forming auxiliary agent is one or more of benzyl alcohol, ethylene glycol butyl ether, dodecyl alcohol ester, ethylene glycol and propylene glycol.
4. The phase-change microcapsule building thermal insulation coating as claimed in claim 1, wherein: the defoaming agent is one or more of silicone oil, polyether, higher alcohol, mineral oil and vegetable oil.
5. The phase-change microcapsule building thermal insulation coating as claimed in claim 1, wherein: the flatting agent is one or more of polyacrylic resin, organic silicon resin and fluorocarbon.
6. The phase-change microcapsule building thermal insulation coating as claimed in claim 1, wherein: the flash rust inhibitor is one or more of sodium nitrite, sodium molybdate and sodium chromate.
7. The phase-change microcapsule building thermal insulation coating as claimed in claim 1, wherein: the amine neutralizer is one or more of AMP-95, N-dimethylethanolamine and ammonia water.
8. The phase-change microcapsule building thermal insulation coating as claimed in claim 1, wherein: the rheological additive is one or more of alkali swellable type, polyamine ester type, polyether type, acrylic acid type and hydrated aluminum magnesium silicate type.
9. A preparation method of a phase-change microcapsule building heat-insulation coating is characterized by comprising the following steps:
a. 45-50 parts of deionized water; 10-11 parts of resin; 7-8 parts of a wetting agent; 1-2 parts of a dispersant; 1-2 parts of a defoaming agent; 31-38 parts of pigment are fully mixed to prepare a composition color paste;
b. adding water-based resin, composition color paste, a film-forming assistant, a defoaming agent, a leveling agent, an anti-flash rust agent and an amine neutralizer into a dispersion tank according to the mass part of any one of claims 1 to 8, simultaneously adding water into the dispersion tank, wherein the ratio of the mass fraction of the water to the total mass fraction of the mixture is 100:15-20, pre-dispersing is carried out for 15-25 minutes, and the pre-dispersing speed is 750-;
c. and then adjusting the rotating speed of the dispersion tank to 450-550r/min, slowly adjusting the dispersion speed to 1100-1300r/min after adding the phase-change microcapsules, and dispersing for 15-25 minutes to uniformly disperse the phase-change microcapsules in the water-based paint to prepare the water-based paint containing the phase-change microcapsules, wherein the mass ratio of the phase-change microcapsules to the water-based paint is 1-5: 100.
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| CN202110707595.4A CN113462291A (en) | 2021-06-25 | 2021-06-25 | Phase-change microcapsule building heat-insulation coating |
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Citations (5)
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| CN102352159A (en) * | 2011-10-28 | 2012-02-15 | 中华制漆（深圳）有限公司 | Water-based phase-change microspherical thermal-insulation paint for internal walls and preparation method thereof |
| CN104559508A (en) * | 2014-12-29 | 2015-04-29 | 三棵树涂料股份有限公司 | Phase change microcapsule-containing thermal insulation coating and preparation method thereof |
| CN104817914A (en) * | 2015-02-03 | 2015-08-05 | 东莞暨南大学研究院 | Phase change microcapsule-type modified building coating and preparation method thereof |
| CN105199520A (en) * | 2015-08-05 | 2015-12-30 | 东莞暨南大学研究院 | Composite architectural heat-insulation coating and preparation method thereof |
| CN109627854A (en) * | 2018-12-21 | 2019-04-16 | 河北晨阳工贸集团有限公司 | A kind of waterborne general color paste and preparation method thereof |
-
2021
- 2021-06-25 CN CN202110707595.4A patent/CN113462291A/en active Pending
Patent Citations (5)
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| CN102352159A (en) * | 2011-10-28 | 2012-02-15 | 中华制漆（深圳）有限公司 | Water-based phase-change microspherical thermal-insulation paint for internal walls and preparation method thereof |
| CN104559508A (en) * | 2014-12-29 | 2015-04-29 | 三棵树涂料股份有限公司 | Phase change microcapsule-containing thermal insulation coating and preparation method thereof |
| CN104817914A (en) * | 2015-02-03 | 2015-08-05 | 东莞暨南大学研究院 | Phase change microcapsule-type modified building coating and preparation method thereof |
| CN105199520A (en) * | 2015-08-05 | 2015-12-30 | 东莞暨南大学研究院 | Composite architectural heat-insulation coating and preparation method thereof |
| CN109627854A (en) * | 2018-12-21 | 2019-04-16 | 河北晨阳工贸集团有限公司 | A kind of waterborne general color paste and preparation method thereof |
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| Title |
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| 王晓伟: "水性复合型外墙隔热保温涂料的研究", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》 * |
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