CN116463003A - Vacuum ceramic microbead heat-insulating paint and preparation method thereof - Google Patents
Vacuum ceramic microbead heat-insulating paint and preparation method thereof Download PDFInfo
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- CN116463003A CN116463003A CN202310497330.5A CN202310497330A CN116463003A CN 116463003 A CN116463003 A CN 116463003A CN 202310497330 A CN202310497330 A CN 202310497330A CN 116463003 A CN116463003 A CN 116463003A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 88
- 239000011325 microbead Substances 0.000 title claims abstract description 80
- 239000003973 paint Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title abstract description 15
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000011324 bead Substances 0.000 claims abstract description 30
- 239000000839 emulsion Substances 0.000 claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000006229 carbon black Substances 0.000 claims abstract description 23
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 21
- 239000002270 dispersing agent Substances 0.000 claims abstract description 20
- 238000007667 floating Methods 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000000080 wetting agent Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000001038 titanium pigment Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 56
- 239000002245 particle Substances 0.000 claims description 27
- 239000011259 mixed solution Substances 0.000 claims description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000002689 soil Substances 0.000 claims description 15
- 239000000440 bentonite Substances 0.000 claims description 13
- 229910000278 bentonite Inorganic materials 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 13
- SXPWTBGAZSPLHA-UHFFFAOYSA-M cetalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SXPWTBGAZSPLHA-UHFFFAOYSA-M 0.000 claims description 12
- 229960000228 cetalkonium chloride Drugs 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 239000002244 precipitate Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 235000010215 titanium dioxide Nutrition 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical group CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 150000002191 fatty alcohols Chemical class 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- -1 polyoxyethylene Polymers 0.000 claims description 5
- 229920001451 polypropylene glycol Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 4
- 238000000643 oven drying Methods 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 64
- 239000011248 coating agent Substances 0.000 abstract description 60
- 238000009413 insulation Methods 0.000 abstract description 34
- 238000004321 preservation Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 4
- 238000010923 batch production Methods 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004005 microsphere Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/10—Insulation, e.g. vacuum or aerogel insulation
Abstract
The application provides a vacuum ceramic microbead heat-insulating paint and a preparation method thereof, and relates to the fields of functional anticorrosive paint and coating. The vacuum ceramic microbead heat-insulating paint comprises the following raw materials in percentage by weight: 1.5 to 3 percent of vacuum ceramic microbeads, 1 to 4 percent of white carbon black, 1 to 3 percent of floating beads, 3 to 5 percent of titanium pigment, 0.5 to 0.9 percent of dispersing agent, 2.5 to 3.5 percent of film forming agent, 0.1 to 0.3 percent of wetting agent, 0.1 to 0.3 percent of defoaming agent, 10 to 20 percent of water, 0.2 to 0.5 percent of modified bentonite and the balance of emulsion. According to the coating, the vacuum ceramic microbeads, the white carbon black, the floating beads, the titanium pigment, the modified bentonite and the like are compounded, so that the obtained coating has a low heat conductivity coefficient, excellent heat preservation and insulation performance is obtained, and the coating has high surface flatness after being coated, is easy to construct, and is safe and reliable.
Description
Technical Field
The application relates to the field of functional anticorrosive paint and coating, in particular to a vacuum ceramic microbead heat-insulating paint and a preparation method thereof.
Background
Improving the heat insulation (adiabatic) function of a building is an important method for saving energy, reducing consumption, and improving the function of the building. In recent years, due to the development of external wall heat insulation technology, the heat insulation coating for the building wall body is gradually changed from an inner wall to an outer wall. The heat insulating paint for building wall is one kind of heat insulating paint and belongs to the field of functional paint. According to three modes of heat conduction, convection and radiation, the building wall heat insulation and preservation coating is correspondingly divided into three categories of barrier building wall heat insulation and preservation coating, reflective building wall heat insulation and preservation coating and radiation type building wall heat insulation and preservation coating, wherein the heat insulation mechanisms of the three categories of coating are different, and the application of the three categories of coating is different. The heat insulating coating for the barrier heat insulating building wall is based on heat insulating aggregate, and is heat insulating mortar; the reflective heat insulating paint for building wall is to reflect the infrared radiation in sunlight to outer space via the reflecting effect of the coating to avoid the temperature rise caused by radiation absorption.
In the research of heat preservation and heat insulation materials, glass beads are mostly used as main filling materials due to the obvious heat preservation and heat insulation effects, but various problems still exist in practical application of the coating on the current market: for example, although the glass hollow microsphere with high reflectivity has obvious heat preservation and insulation effects, the glass hollow microsphere has small bulk density and larger mass, is easy to cause post thickening of the coating, and reduces storage stability, and when the addition amount is too high, the surface flatness can be affected, and the stain resistance performance is reduced, so that the heat insulation performance is reduced. The problem of insufficient heat conductivity coefficient still exists in the coating on the market at present, and the finding of the composite heat-insulating coating formed by the cooperation of a plurality of mechanisms such as blocking, reflecting and radiating is still a scientific difficult problem to be solved.
Disclosure of Invention
The purpose of the application is to provide a vacuum ceramic microbead heat insulation and heat preservation coating, which has the advantages of low heat conduction coefficient, good heat preservation effect and high coating flatness.
Another object of the present application is to provide a method for preparing a vacuum ceramic bead heat-insulating coating, so as to prepare the vacuum ceramic bead heat-insulating coating.
In order to solve the problems, the invention adopts the technical method that:
on one hand, the embodiment of the application provides a vacuum ceramic microbead heat-insulating paint, which comprises the following raw materials in percentage by weight: 1.5 to 3 percent of vacuum ceramic microbeads, 1 to 4 percent of white carbon black, 1 to 3 percent of floating beads, 3 to 5 percent of titanium pigment, 0.5 to 0.9 percent of dispersing agent, 2.5 to 3.5 percent of film forming agent, 0.1 to 0.3 percent of wetting agent, 0.1 to 0.3 percent of defoaming agent, 10 to 20 percent of water, 0.2 to 0.5 percent of modified bentonite and the balance of emulsion.
On the other hand, the embodiment of the application provides a preparation method of a vacuum ceramic microsphere heat insulation coating, which comprises the following steps:
adding a dispersing agent, a wetting agent and a half of defoaming agent into water, uniformly stirring, adding titanium white, modified bentonite, white carbon black and floating beads, and uniformly stirring to obtain a mixed solution;
and adding the emulsion and the vacuum ceramic microbeads into the mixed solution, stirring, adding the film forming agent and the residual defoaming agent, and uniformly stirring to obtain the vacuum ceramic microbead heat-insulating paint finished product.
Compared with the prior art, the invention of the application has at least the following advantages or beneficial effects:
this application is through compounding vacuum ceramic microballon, white carbon black, float pearl, titanium white and modified bentonite etc. for the coating that obtains has lower coefficient of heat conductivity, obtains outstanding heat preservation heat-proof quality, and its coating back surface smoothness is high, easily construction, safe and reliable, when can guaranteeing the heat preservation heat-proof effect to the building, improves construction convenience, and has comparatively pleasing to the eye decorative effect.
Specifically, the vacuum degree of the inner cavity of the vacuum ceramic microbead selected by the application reaches more than 85%, the vacuum ceramic microbead has lower heat conductivity coefficient, the heat conduction path is longer when heat passes through the surface of the microbead, and a heat insulation film can be formed in the coating, so that a good heat insulation effect can be achieved; the white carbon black has a special three-dimensional network structure and high surface free energy, can improve the evenness of a coating film of the coating, can improve the stain resistance of the coating film, and can also stabilize the performance of the coating when the coating is used; the floating beads are low in price and good in heat insulation effect, and can be mixed with the rest raw materials to improve the heat insulation effect of the coating; the added modified bentonite can form colloid and is stably connected with the rest particles, so that the performance of the coating is stable; the coating has the advantages of good heat preservation, low price, good stability and high smearing evenness by distributing various raw materials in the emulsion.
The preparation method is simple, low in preparation cost and suitable for batch production.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail with reference to specific examples.
The embodiment of the application provides a vacuum ceramic microbead heat-insulating paint, which comprises the following raw materials in percentage by weight: 1.5 to 3 percent of vacuum ceramic microbeads, 1 to 4 percent of white carbon black, 1 to 3 percent of floating beads, 3 to 5 percent of titanium pigment, 0.5 to 0.9 percent of dispersing agent, 2.5 to 3.5 percent of film forming agent, 0.1 to 0.3 percent of wetting agent, 0.1 to 0.3 percent of defoaming agent, 10 to 20 percent of water, 0.2 to 0.5 percent of modified bentonite and the balance of emulsion.
This application is through compounding vacuum ceramic microballon, white carbon black, float pearl, titanium white and modified bentonite etc. for the coating that obtains has lower coefficient of heat conductivity, obtains outstanding heat preservation heat-proof quality, and its coating back surface smoothness is high, easily construction, safe and reliable, when can guaranteeing the heat preservation heat-proof effect to the building, improves construction convenience, and has comparatively pleasing to the eye decorative effect.
Specifically, the vacuum degree of the inner cavity of the vacuum ceramic microbead selected by the application reaches more than 85%, the vacuum ceramic microbead has lower heat conductivity coefficient, the heat conduction path is longer when heat passes through the surface of the microbead, and a heat insulation film can be formed in the coating, so that a good heat insulation effect can be achieved; the white carbon black has a special three-dimensional network structure and high surface free energy, can improve the evenness of a coating film of the coating, can improve the stain resistance of the coating film, and can also stabilize the performance of the coating when the coating is used; the floating beads are low in price and good in heat insulation effect, and can be mixed with the rest raw materials to improve the heat insulation effect of the coating; the added modified bentonite can form colloid and is stably connected with the rest particles, so that the performance of the coating is stable; the coating has the advantages of good heat preservation, low price, good stability and high smearing evenness by distributing various raw materials in the emulsion.
In some embodiments of the present application, the vacuum ceramic microbeads described above include a weight ratio of (7-9): 1 vacuum ceramic microbeads with the particle size of 10-30 mu m and vacuum ceramic microbeads with the particle size of 70-100 mu m. Two ceramic microbeads with different particle sizes are selected for mixed use, on one hand, the ceramic microbeads with large particle sizes and small particle sizes can be arranged in the emulsion in a chaotic manner, so that heat conduction can be further reduced; on the other hand, the ceramic microbeads with large particle size have thinner bead walls and are easy to crush, and the crushing of the ceramic microbeads can reduce the heat insulation performance of the material, and the ceramic microbeads with small particle size have thicker bead walls and are not easy to crush, but have smaller cavities, so that the heat insulation effect is slightly poor, and the ceramic microbeads are mixed, so that the heat insulation effect of the coating can be ensured to be good.
In some embodiments of the present application, the white carbon black has a particle size of 10 to 100 μm; the titanium dioxide is specifically rutile titanium dioxide.
In some embodiments of the present application, the dispersant is a condensed phosphate dispersant; the film forming agent is ethylene glycol diethyl ether; the wetting agent is polyoxyethylene fatty alcohol ether or fatty acid ester sulfate; the defoamer is polypropylene glycol.
In some embodiments of the present application, the modified bentonite is prepared by the following method:
crushing bentonite into 100-150 mesh powder, soaking in water, stirring for 30-50min, filtering, separating, collecting filtrate, centrifuging, removing supernatant, and oven drying precipitate;
mixing the dried precipitate with mixed acid according to the weight ratio of 1:2-4, heating and stirring at the constant temperature of 90 ℃ for 30-60min, rinsing with deionized water, filtering, drying and crushing to obtain active soil;
mixing active soil and absolute ethyl alcohol to prepare slurry, heating the slurry in water bath to 55-60 ℃, adding hexadecyl dimethyl benzyl ammonium chloride into the slurry, uniformly stirring, reacting for 60-90min, heating and stirring in a water bath with constant temperature of 60 ℃ for 90-120min, centrifuging to separate out solid, and washing the solid with deionized water to obtain the modified bentonite.
The bentonite is subjected to surface modification, the interplanar spacing of the bentonite can be improved, the bentonite is subjected to flaky stripping, and the bentonite has certain hydrophobicity, so that the compatibility stability of the bentonite with vacuum ceramic microbeads, white carbon black, floating beads and titanium pigment is improved, and the stability of the paint is further improved. Specifically, firstly, bentonite is subjected to acid activation to change the tissue structure, increase the specific surface area and increase the active sites on the bentonite, and then cetyl dimethyl benzyl ammonium chloride is used for modifying the bentonite, so that the obtained modified bentonite has higher compatibility stability.
In some embodiments of the present application, the weight ratio of the active soil, the absolute ethyl alcohol and the hexadecyldimethylbenzyl ammonium chloride is 1: (10-13): (40-50); the mixed acid comprises the following components in percentage by weight (3-5): 2 sulfuric acid and hydrochloric acid.
In some embodiments of the present application, the above-described emulsions include styrene-acrylic emulsions, aqueous epoxy resin emulsions, and pure acrylic emulsions.
The embodiment of the application also provides a preparation method of the vacuum ceramic microbead heat-insulating paint, which comprises the following steps:
adding a dispersing agent, a wetting agent and a half of defoaming agent into water, uniformly stirring, adding titanium white, modified bentonite, white carbon black and floating beads, and uniformly stirring to obtain a mixed solution;
and adding the emulsion and the vacuum ceramic microbeads into the mixed solution, stirring, adding the film forming agent and the residual defoaming agent, and uniformly stirring to obtain the vacuum ceramic microbead heat-insulating paint finished product.
The preparation method is simple, low in preparation cost and suitable for batch production.
In some embodiments of the present application, the above-mentioned mixed solution is specifically obtained by stirring at a rotation speed of 2000-2200r/min for 20-40 min.
In some embodiments of the present application, after the emulsion and the vacuum ceramic microbeads are added into the mixed solution, stirring is performed for 10-20min at a rotation speed of 300-400 r/min; and stirring for 10-15min after the film forming agent and the residual defoaming agent are added. The ceramic hollow bead has thinner bead wall, and is easy to break under the condition of high-speed stirring, so that the stirring is limited to 300-400r/min, the integrity of the ceramic hollow bead can be improved, the heat insulation performance of the coating is improved, and the ceramic hollow bead is easy to disperse unevenly, so that the dispersion uniformity of the ceramic hollow bead in the coating can be improved by stirring at the rotating speed, the blocking is avoided in the construction process, and the convenience of construction is improved.
The features and capabilities of the present application are described in further detail below in connection with the examples.
Example 1
A preparation method of vacuum ceramic microbead heat-insulating paint comprises the following steps:
raw materials: vacuum ceramic microbeads (vacuum ceramic microbeads with the particle size of 10-30 mu m and vacuum ceramic microbeads with the particle size of 70-100 mu m in a weight ratio of 7:1) 1.5%, white carbon black 1%, floating beads 1%, titanium pigment 3%, dispersing agent (condensed phosphate dispersing agent) 0.5%, film forming agent (ethylene glycol diethyl ether) 2.5%, wetting agent (polyoxyethylene fatty alcohol ether) 0.1-0.3%, defoaming agent (polypropylene glycol) 0.1%, water 10% and modified bentonite 0.2%, and the balance being emulsion.
Adding a dispersing agent, a wetting agent and a half of defoaming agent into water, uniformly stirring, adding titanium dioxide, modified bentonite, white carbon black and floating beads, and stirring at a rotating speed of 2000r/min for 20min to obtain a mixed solution;
adding the emulsion and the vacuum ceramic microbeads into the mixed solution, stirring for 10min at the rotating speed of 300r/min, adding the film forming agent and the residual defoaming agent, and stirring for 10min to obtain the vacuum ceramic microbead heat-insulating paint finished product.
The modified bentonite is prepared by the following method:
crushing bentonite into 100 mesh powder, soaking in water, stirring for 30min, filtering, separating, collecting filtrate, centrifuging, removing supernatant, and oven drying precipitate;
mixing the dried precipitate with mixed acid (sulfuric acid and hydrochloric acid with the weight ratio of 3:2) according to the weight ratio of 1:2, heating and stirring at the constant temperature of 90 ℃ for 30min, rinsing with deionized water, filtering, drying and crushing to obtain active soil;
active soil and absolute ethyl alcohol are mixed according to the following ratio of 1:10 to prepare slurry, heating the slurry to 55 ℃ in water bath, and mixing active soil with hexadecyl dimethyl benzyl ammonium chloride 1:40 weight ratio, adding cetyl dimethyl benzyl ammonium chloride into the slurry, uniformly stirring, reacting for 60min, heating and stirring for 90min in a water bath with constant temperature of 60 ℃, centrifuging to separate out solid, and washing the solid with deionized water to obtain the modified bentonite.
Example 2
A preparation method of vacuum ceramic microbead heat-insulating paint comprises the following steps:
raw materials: vacuum ceramic microbeads (vacuum ceramic microbeads with the particle size of 10-30 mu m and vacuum ceramic microbeads with the particle size of 70-100 mu m in a weight ratio of 8:1) 2%, white carbon black 3%, floating beads 2%, titanium pigment 4%, dispersing agent (condensed phosphate dispersing agent) 0.7%, film forming agent (ethylene glycol diethyl ether) 3%, wetting agent (polyoxyethylene fatty alcohol ether) 0.2%, defoaming agent (polypropylene glycol) 0.2%, water 15% and modified bentonite 0.4%, and the balance of emulsion.
Adding a dispersing agent, a wetting agent and a half of defoaming agent into water, uniformly stirring, adding titanium dioxide, modified bentonite, white carbon black and floating beads, and stirring at a rotating speed of 2000r/min for 20min to obtain a mixed solution;
adding the emulsion and the vacuum ceramic microbeads into the mixed solution, stirring for 10min at the rotating speed of 300r/min, adding the film forming agent and the residual defoaming agent, and stirring for 10min to obtain the vacuum ceramic microbead heat-insulating paint finished product.
The modified bentonite is prepared by the following method:
crushing bentonite into 130 mesh powder, soaking in water, stirring for 40min, filtering, separating, collecting filtrate, centrifuging, removing supernatant, and oven drying precipitate;
the dried precipitate was purified according to 1:3 (weight ratio) and mixed acid (sulfuric acid and hydrochloric acid with weight ratio of 4:2), heating and stirring at constant temperature of 90 ℃ for 30-60min, rinsing with deionized water, filtering, drying and crushing to obtain active soil;
active soil and absolute ethyl alcohol are mixed according to the following ratio of 1:12 to prepare slurry, heating the slurry to 58 ℃ in water bath, and mixing active soil with hexadecyl dimethyl benzyl ammonium chloride 1:45 weight ratio, adding cetyl dimethyl benzyl ammonium chloride into the slurry, uniformly stirring, reacting for 70min, heating and stirring for 100min in a water bath with constant temperature of 60 ℃, centrifuging to separate out solid, and washing the solid with deionized water to obtain the modified bentonite.
Example 3
A preparation method of vacuum ceramic microbead heat-insulating paint comprises the following steps:
raw materials: 3% of vacuum ceramic microbeads (the weight ratio of the vacuum ceramic microbeads with the particle size of 10-30 mu m to the vacuum ceramic microbeads with the particle size of 70-100 mu m) is 9:1, 4% of white carbon black, 3% of floating beads, 5% of titanium pigment, 0.9% of dispersing agent (condensed phosphate dispersing agent), 3.5% of film forming agent (ethylene glycol diethyl ether), 0.3% of wetting agent (polyoxyethylene fatty alcohol ether), 0.3% of defoaming agent (polypropylene glycol), 20% of water and 0.5% of modified bentonite, and the balance of emulsion.
Adding a dispersing agent, a wetting agent and a half of defoaming agent into water, uniformly stirring, adding titanium pigment, modified bentonite, white carbon black and floating beads, and stirring at 2200r/min for 40min to obtain a mixed solution;
adding the emulsion and the vacuum ceramic microbeads into the mixed solution, stirring for 20min at the rotating speed of 400r/min, adding the film forming agent and the residual defoaming agent, and stirring for 15min to obtain the vacuum ceramic microbead heat-insulating paint finished product.
The modified bentonite is prepared by the following method:
crushing bentonite into powder of 150 meshes, soaking in water, stirring for 50min, filtering, separating, collecting the filtered turbid liquid, centrifuging the filtered turbid liquid, removing supernatant, and drying precipitate;
the dried precipitate was purified according to 1:4, mixing the mixture with mixed acid (sulfuric acid and hydrochloric acid in a weight ratio of 5:2), heating and stirring at a constant temperature of 90 ℃ for 60min, rinsing with deionized water, filtering, drying and crushing to obtain active soil;
active soil and absolute ethyl alcohol are mixed according to the following ratio of 1:13, heating in water bath to 60 ℃ according to the weight ratio of active soil to hexadecyl dimethyl benzyl ammonium chloride 1: and weighing hexadecyl dimethyl benzyl ammonium chloride according to the weight ratio of 50, adding the hexadecyl dimethyl benzyl ammonium chloride into the slurry, uniformly stirring, reacting for 90min, heating and stirring in a water bath with constant temperature of 60 ℃ for 120min, centrifuging to separate out solid, and washing the solid with deionized water to obtain the modified bentonite.
Example 4
This embodiment is substantially the same as embodiment 2 except that: the wetting agent is fatty acid ester sulfate.
Comparative example 1
This comparative example is substantially identical to example 2, except that: the vacuum ceramic microbeads are vacuum ceramic microbeads with the particle size of 70-100 mu m.
Comparative example 2
This comparative example is substantially the same as comparative example 1, except that: after the emulsion and the vacuum ceramic microbeads are added into the mixed solution, stirring is carried out at a rotating speed of 1000 r/min.
Experimental example
The coatings prepared in examples 2 to 4 were applied to test panels, and the test specimens of examples 2 to 4 were evaluated for their combustibility according to GB8624-2012 classification of combustion properties of building materials and articles, and the results are shown in tables 1 to 3.
TABLE 1
TABLE 2
TABLE 3 Table 3
The observations show that the coatings prepared in examples 2-4 of the application meet the technical requirements of the flat plate-shaped building materials and the A (A1) grade nonflammable materials of products in the standard GB8624-2012, which shows that the coatings prepared in the application have high safety when applied to the building field.
(II) the coatings prepared in example 2 and comparative examples 1 to 2 were subjected to thermal conductivity, state in a container, drying time, workability, appearance of a coating film, low temperature stability, alkali resistance, acid resistance, water resistance, wash resistance, temperature denaturation resistance, tensile properties, artificial weather aging resistance, adhesion and stain resistance, and specific results are shown in Table 4.
TABLE 4 Table 4
As can be seen from the observation of table 4, the thermal conductivity of example 2 is the same as that of comparative example 1, because the ceramic microbeads with large particle size are selected in comparative example 1, but the ceramic microbeads with large particle size are easily broken by collision during stirring, so that the heat insulation effect is slightly lower, while the ceramic microbeads with large particle size and small particle size are mixed, so that the breaking rate of the ceramic microbeads can be reduced, and the heat insulation effect is improved; comparative examples 1 and 2, at high stirring speeds, had more ceramic beads broken, resulting in poorer insulation; the ceramic microbeads with large particle size and small particle size are selected for matching, and the emulsion is ensured to be uniform at a low stirring speed, and meanwhile, the emulsion is also ensured to be not to be broken easily, so that a high heat insulation effect is obtained.
To sum up, this application is through compounding vacuum ceramic microballon, white carbon black, floating bead, titanium white and modified bentonite etc. for the coating that obtains has lower coefficient of heat conductivity, obtains outstanding heat preservation heat-proof quality, and its coating back surface smoothness is high, easily construction, safe and reliable can improve construction convenience when guaranteeing the heat preservation heat-proof effect to the building, and has comparatively pleasing to the eye decorative effect.
Specifically, the vacuum degree of the inner cavity of the vacuum ceramic microbead selected by the application reaches more than 85%, the vacuum ceramic microbead has lower heat conductivity coefficient, the heat conduction path is longer when heat passes through the surface of the microbead, and a heat insulation film can be formed in the coating, so that a good heat insulation effect can be achieved; the white carbon black has a special three-dimensional network structure and high surface free energy, can improve the evenness of a coating film of the coating, can improve the stain resistance of the coating film, and can also stabilize the performance of the coating when the coating is used; the floating beads are low in price and good in heat insulation effect, and can be mixed with the rest raw materials to improve the heat insulation effect of the coating; the added modified bentonite can form colloid and is stably connected with the rest particles, so that the performance of the coating is stable; the coating has the advantages of good heat preservation, low price, good stability and high smearing evenness by distributing various raw materials in the emulsion.
The preparation method is simple, low in preparation cost and suitable for batch production.
The embodiments described above are some, but not all, of the embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Claims (10)
1. The vacuum ceramic microbead heat-insulating paint is characterized by comprising the following raw materials in percentage by weight: 1.5 to 3 percent of vacuum ceramic microbeads, 1 to 4 percent of white carbon black, 1 to 3 percent of floating beads, 3 to 5 percent of titanium pigment, 0.5 to 0.9 percent of dispersing agent, 2.5 to 3.5 percent of film forming agent, 0.1 to 0.3 percent of wetting agent, 0.1 to 0.3 percent of defoaming agent, 10 to 20 percent of water, 0.2 to 0.5 percent of modified bentonite and the balance of emulsion.
2. The vacuum ceramic microbead heat-insulating paint as in claim 1, wherein the vacuum ceramic microbeads comprise (7-9) by weight: 1 vacuum ceramic microbeads with the particle size of 10-30 mu m and vacuum ceramic microbeads with the particle size of 70-100 mu m.
3. The vacuum ceramic microbead heat-insulating paint according to claim 1, wherein the particle size of the white carbon black is 10-100 μm; the titanium dioxide is specifically rutile titanium dioxide.
4. The vacuum ceramic microbead heat-insulating paint according to claim 1, wherein the dispersing agent is a condensed phosphate dispersing agent; the film forming agent is ethylene glycol diethyl ether; the wetting agent is polyoxyethylene fatty alcohol ether or fatty acid ester sulfate; the defoamer is polypropylene glycol.
5. The vacuum ceramic microbead heat-insulating paint according to claim 1, wherein the modified bentonite is prepared by the following method:
crushing bentonite into 100-150 mesh powder, soaking in water, stirring for 30-50min, filtering, separating, collecting filtrate, centrifuging, removing supernatant, and oven drying precipitate;
mixing the dried precipitate with mixed acid according to the weight ratio of 1:2-4, heating and stirring at the constant temperature of 90 ℃ for 30-60min, rinsing with deionized water, filtering, drying and crushing to obtain active soil;
mixing active soil and absolute ethyl alcohol to prepare slurry, heating the slurry in water bath to 55-60 ℃, adding hexadecyl dimethyl benzyl ammonium chloride into the slurry, uniformly stirring, reacting for 60-90min, heating and stirring in a water bath with constant temperature of 60 ℃ for 90-120min, centrifuging to separate out solid, and washing the solid with deionized water to obtain the modified bentonite.
6. The vacuum ceramic microbead heat-insulating paint according to claim 5, wherein the weight ratio of active soil to absolute ethyl alcohol to cetyl dimethylbenzyl ammonium chloride is 1: (10-13): (40-50); the weight ratio of the mixed acid is (3-5): 2 sulfuric acid and hydrochloric acid.
7. The vacuum ceramic microbead heat-insulating paint as in claim 1, wherein the emulsion comprises styrene-acrylic emulsion, aqueous epoxy resin emulsion and pure acrylic emulsion.
8. The method for preparing the vacuum ceramic microbead heat-insulating paint according to any one of claims 1 to 7, which is characterized by comprising the following steps:
adding a dispersing agent, a wetting agent and a half of defoaming agent into water, uniformly stirring, adding titanium white, modified bentonite, white carbon black and floating beads, and uniformly stirring to obtain a mixed solution;
and adding the emulsion and the vacuum ceramic microbeads into the mixed solution, stirring, adding the film forming agent and the residual defoaming agent, and uniformly stirring to obtain the vacuum ceramic microbead heat-insulating paint finished product.
9. The method for preparing the vacuum ceramic microbead heat-insulating paint according to claim 8, wherein the mixed solution is prepared by stirring at a rotating speed of 2000-2200r/min for 20-40 min.
10. The method for preparing the vacuum ceramic microbead heat-insulating paint according to claim 8, wherein after the emulsion and the vacuum ceramic microbeads are added into the mixed solution, stirring is carried out for 10-20min at a rotating speed of 300-400 r/min; and stirring for 10-15min after the film forming agent and the residual defoaming agent are added.
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