CN113969089A - Heat-insulating waterproof coating composition for building exterior wall and application method thereof - Google Patents
Heat-insulating waterproof coating composition for building exterior wall and application method thereof Download PDFInfo
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- CN113969089A CN113969089A CN202111330850.4A CN202111330850A CN113969089A CN 113969089 A CN113969089 A CN 113969089A CN 202111330850 A CN202111330850 A CN 202111330850A CN 113969089 A CN113969089 A CN 113969089A
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- 239000008199 coating composition Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 56
- 239000003973 paint Substances 0.000 claims abstract description 51
- 235000005273 Canna coccinea Nutrition 0.000 claims abstract description 34
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000839 emulsion Substances 0.000 claims abstract description 25
- 239000004094 surface-active agent Substances 0.000 claims abstract description 20
- 229910052769 Ytterbium Inorganic materials 0.000 claims abstract description 17
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims abstract description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 16
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 14
- 229920002472 Starch Polymers 0.000 claims abstract description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004584 polyacrylic acid Substances 0.000 claims abstract description 14
- 235000019698 starch Nutrition 0.000 claims abstract description 14
- 239000008107 starch Substances 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 13
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 13
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 13
- 241000234587 Canna Species 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 24
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 13
- 239000002518 antifoaming agent Substances 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 12
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 12
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 12
- 239000000920 calcium hydroxide Substances 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 239000002270 dispersing agent Substances 0.000 claims description 12
- 239000003755 preservative agent Substances 0.000 claims description 12
- 230000002335 preservative effect Effects 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- -1 acrylic ester Chemical class 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 7
- 238000007605 air drying Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 230000002209 hydrophobic effect Effects 0.000 abstract description 3
- 239000003086 colorant Substances 0.000 abstract description 2
- 239000000049 pigment Substances 0.000 abstract description 2
- 240000008555 Canna flaccida Species 0.000 abstract 1
- 240000008790 Musa x paradisiaca Species 0.000 abstract 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 6
- 239000011858 nanopowder Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229940075624 ytterbium oxide Drugs 0.000 description 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
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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
-
- 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
- C09D5/002—Priming paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
- C09D7/70—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
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- 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
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- 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
Abstract
The invention discloses a heat-insulating waterproof coating composition for building outer walls and an application method thereof. The invention utilizes polyacrylic acid, starch, surfactant and tackifier to make the primer layer with microporous structure and viscidity, facilitate the later stage and finish paint layer to bond, do not need to prepare the tie coat, save the process more, the acrylate emulsion is regarded as the film forming substance, utilize hollow glass microballoon, zirconia ceramic powder, nanometer alumina powder modified of ytterbium, rare earth to play and obstruct the heat conduction function, four cooperate, strengthen the heat-insulating property of the primer layer apparently, utilize banana of canna powder to make finish paint layer with good hydrophobic property, improve heat-insulating property and hydrophobicity of the exterior wall of the building, protect the exterior wall of the building to use and crack for a long time, can also add pigment, etc. in the finish paint layer, make the exterior wall of the building with different colors, suitable for the industrialized popularization and use.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a heat-insulating waterproof coating composition for an exterior wall of a building and an application method thereof.
Background
The waterproof and heat-insulating performance of the building outer wall has very important practical significance for improving the durability of the structural wall and improving the use function of the building. However, the building outer wall full of frost is changeable in four seasons and changeable in years, cracks, discoloration and other problems are easily caused by aging, the appearance is affected, serious people even continue to use the building outer wall, and in order to solve the problem, protective paint is generally required to be coated or scraped on the building outer wall so as to achieve the purpose of protecting the building outer wall.
When designing the coating for the outer wall of the building, the performances of the waterproof material and the heat-insulating material and the matching property of the waterproof material and the heat-insulating material with adjacent materials are considered, the adhesion between the coating and the base layer is also considered, the coating is ensured to meet the basic performance requirements, the durability requirement and the water resistance requirement, and particularly in the south with much rain and moisture, the coating is required to ensure enough impermeability and stretchability under the moisture condition and cannot be separated from the base layer.
However, the existing protective coating has uneven quality and single function, cannot well take water resistance and heat insulation into consideration, has the problems of thick coating thickness, poor durability, poor adhesion and the like, and cannot well meet the requirements of modern buildings.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide a heat-insulating waterproof coating composition for an exterior wall of a building and an application method thereof.
In order to achieve the purpose and achieve the technical effect, the invention adopts the technical scheme that:
the heat-insulating waterproof coating composition for the outer wall of the building comprises a primer layer and a finish layer, wherein the primer layer has a micropore structure and has viscosity, and the primer layer and the finish layer are bonded together.
Further, the preparation raw materials of the primer layer comprise the following components in parts by weight:
60-80 parts of acrylic ester emulsion
20-40 parts of polyacrylic acid
20-30 parts of hollow glass beads
10-30 parts of starch
10-15 parts of zirconia ceramic powder
0-10 parts of ytterbium modified nano alumina powder
2-10 parts of rare earth
2-4 parts of surfactant
0-5 parts of tackifier
1-5 parts of dispersant
1-5 parts of defoaming agent
10-20 parts of deionized water.
Furthermore, the solid content of the primer layer is 0.1-15%, the particle size is 10-300nm, and the thickness is 50-75 μm.
Further, the primer layer is prepared by the following steps:
adding the acrylate emulsion and the defoaming agent into a stirrer, uniformly stirring, then adding the hollow glass beads, the zirconia ceramic powder, the ytterbium modified nano-alumina powder, the rare earth, the dispersing agent and a half amount of surfactant, uniformly stirring, then sequentially adding the polyacrylic acid, the starch, the deionized water, the rest surfactant and the tackifier, and uniformly stirring at 50-62 ℃ to obtain the required primer layer.
Further, the preparation raw materials of the finish paint layer comprise the following components in parts by weight:
20-30 parts of acrylate emulsion
15-20 parts of canna powder
0.2 to 2 portions of preservative
0.1 to 1 portion of calcium hydroxide
0.01-0.1 part of nano soil.
Furthermore, the solid content of the finishing paint layer is 0.1-15%, the thickness is 50-75 mu m, and the water contact angle is not lower than 120 degrees.
Further, the finish paint layer is prepared by the following steps:
adding the acrylate emulsion, the canna powder, the preservative, the calcium hydroxide and the nano soil into a stirrer, and uniformly stirring at 40-50 ℃ to obtain the required finish paint layer.
Further, the canna powder is prepared by the following steps:
taking fresh and insect-free canna leaves, drying at 70-90 ℃ under the environment of 20-40% relative humidity until the water content is 10-15%, then grinding at 40-55 ℃, and filtering to obtain the canna powder with the particle size of 100-2500 nm.
The invention discloses an application method of a heat-insulating waterproof coating composition for building exterior walls, which comprises the following steps:
the method comprises the steps of firstly coating a primer layer on the surface of an exterior wall of a building, then coating a finish paint layer at 50-62 ℃, standing and air-drying, wherein the sum of the thicknesses of the primer layer and the finish paint layer is 100-150 mu m.
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses a heat-insulating waterproof coating composition for building outer walls and an application method thereof. The invention provides a heat-insulating waterproof coating composition for building exterior walls and an application method thereof, wherein a primer layer with a microporous structure and viscosity can be prepared by using auxiliary agents such as polyacrylic acid, starch, a surfactant, a tackifier and the like, the primer layer can be conveniently bonded with a finish paint layer at a later stage without preparing a bonding layer, and the formed micropores have certain air permeability The heat insulating agent and the like are used for preparing a finish paint layer with good hydrophobic property by utilizing canna powder, the heat insulating property and the hydrophobic property of the building outer wall can be obviously improved after the primer layer and the finish paint layer are coated on the surface of the building outer wall, the building outer wall is protected from cracking after being used for a long time, proper pigment and the like can be added into the finish paint layer, the building outer walls with different colors are prepared, the attractiveness is improved, the functionality is obviously improved, and the heat insulating agent and the finish paint layer are suitable for industrial popularization and use.
Drawings
Fig. 1 is an SEM image of canna powder of example 1 of the present invention.
Detailed Description
The present invention is described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the scope of the present invention can be clearly and clearly defined.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
The heat-insulating waterproof paint composition for the outer wall of the building comprises a primer layer and a finish paint layer, wherein the primer layer has a micropore structure and has viscosity, and the primer layer and the finish paint layer are bonded together.
The primer layer is prepared from the following raw materials in parts by weight:
60-80 parts of acrylic ester emulsion
20-40 parts of polyacrylic acid
20-30 parts of hollow glass beads
10-30 parts of starch
10-15 parts of zirconia ceramic powder
0-10 parts of ytterbium modified nano alumina powder
2-10 parts of rare earth
2-4 parts of surfactant
0-5 parts of tackifier
1-5 parts of dispersant
1-5 parts of defoaming agent
10-20 parts of deionized water.
The solid content of the primer layer is 0.1-15%, the particle size is 10-300nm, and the thickness is 50-75 μm.
The primer layer is prepared by the following steps:
adding the acrylate emulsion and the defoaming agent into a stirrer, uniformly stirring, then adding the hollow glass beads, the zirconia ceramic powder, the ytterbium modified nano-alumina powder, the rare earth, the dispersing agent and a half amount of surfactant, uniformly stirring, then sequentially adding the polyacrylic acid, the starch, the deionized water, the rest surfactant and the tackifier, and uniformly stirring at 50-62 ℃ to obtain the required primer layer.
The preparation raw materials of the finish paint layer comprise the following components in parts by weight:
20-30 parts of acrylate emulsion
15-20 parts of canna powder
0.2 to 2 portions of preservative
0.1 to 1 portion of calcium hydroxide
0.01-0.1 part of nano soil.
The solid content of the finishing paint layer is 0.1-15%, the thickness is 50-75 μm, and the water contact angle is not lower than 120 degrees.
The finish paint layer is prepared by the following steps:
adding the acrylate emulsion, the canna powder, the preservative, the calcium hydroxide and the nano soil into a stirrer, and uniformly stirring at 40-50 ℃ to obtain the required finish paint layer.
The canna powder is prepared by the following steps:
taking fresh and insect-free canna leaves, drying at 70-90 ℃ under the environment of 20-40% relative humidity until the water content is 10-15%, then grinding at 40-55 ℃, and filtering to obtain the canna powder with the particle size of 100-2500 nm.
The invention discloses an application method of a heat-insulating waterproof coating composition for building exterior walls, which comprises the following steps:
the surface of the building outer wall is coated with a primer layer firstly, then is coated with a finish paint layer at the temperature of 50-62 ℃, and is subjected to standing and air drying, wherein the sum of the thicknesses of the primer layer and the finish paint layer is 100-150 mu m.
Example 1
The heat-insulating waterproof paint composition for the outer wall of the building comprises a primer layer and a finish paint layer, wherein the primer layer has a micropore structure and has viscosity, and the primer layer and the finish paint layer are bonded together.
The primer layer is prepared from the following raw materials in parts by weight:
80 parts of acrylic ester emulsion
Polyacrylic acid 30 parts
30 parts of hollow glass beads
20 portions of starch
10 portions of zirconia ceramic powder
Ytterbium modified nano alumina powder 5 parts
2 parts of zirconic acid rare earth
Surfactant 4 parts
Tackifier 2 parts
5 portions of dispersant
5 portions of defoaming agent
And 20 parts of deionized water.
The solid content of the primer layer is 0.1-15%, the particle size is 10-300nm, and the thickness is 50 μm.
The primer layer is prepared by the following steps:
adding the acrylate emulsion and the defoaming agent into a stirrer, uniformly stirring, then adding the hollow glass beads, the zirconia ceramic powder, the ytterbium modified nano-alumina powder, the zirconic acid rare earth, the dispersing agent and a half amount of surfactant, uniformly stirring, then sequentially adding the polyacrylic acid, the starch, the deionized water, the rest surfactant and the tackifier, and uniformly stirring at 50 ℃ to obtain the needed primer layer.
The particle size of the ytterbium modified nano powder is 570-590nm, the ytterbium modified nano powder has a microporous structure, the mobility of gas molecules in micropores is extremely low, the convection heat transfer is blocked, the pore wall has certain reflection and refraction effects on heat radiation, the radiation heat transfer capacity is reduced, the ytterbium modified nano powder is ytterbium modified nano alumina powder, and the ytterbium modified nano powder is prepared by mixing nano alumina powder and ytterbium oxide powder according to the weight ratio of 1: 2 is prepared by grinding or nodular casting, drying, crushing and calcining, wherein the drying temperature is not more than 70 ℃, the drying time is 25h, the calcining temperature is 900-1250 ℃, and the heating rate is 12-15 ℃/min.
The preparation raw materials of the finish paint layer comprise the following components in parts by weight:
30 parts of acrylic ester emulsion
15 parts of canna powder
0.2 portion of preservative
0.1 part of calcium hydroxide
And 0.01 part of nano soil.
The solid content of the finishing paint layer is 0.1-15%, the thickness is 50 μm, and the water contact angle is not lower than 120 degrees.
The finish paint layer is prepared by the following steps:
adding the acrylate emulsion, the canna powder, the preservative, the calcium hydroxide and the nano soil into a stirrer, and uniformly stirring at 40-50 ℃ to obtain the required finish paint layer.
The canna powder is prepared by the following steps:
taking fresh and insect-free canna leaves, drying the leaves at 70 ℃ and 20% relative humidity until the water content is 10%, then grinding the leaves at 45 ℃, filtering the leaves to obtain canna powder with the particle size of 100-2500nm, wherein an electron microscope picture of the canna powder is shown in figure 1.
The embodiment discloses an application method of a heat-insulating waterproof coating composition for building exterior walls, which comprises the following steps:
the method comprises the steps of firstly coating a primer layer on the surface of an external wall of a building, then coating a finish paint layer at 50 ℃, standing and air-drying, wherein the sum of the thicknesses of the primer layer and the finish paint layer is 100 mu m.
Example 2
The heat-insulating waterproof paint composition for the outer wall of the building comprises a primer layer and a finish paint layer, wherein the primer layer has a micropore structure and has viscosity, and the primer layer and the finish paint layer are bonded together.
The primer layer is prepared from the following raw materials in parts by weight:
60 parts of acrylic ester emulsion
Polyacrylic acid 40 parts
Hollow glass bead 20 parts
30 portions of starch
15 parts of zirconia ceramic powder
Ytterbium modified nano alumina powder 10 parts
10 portions of rare earth
Surfactant 4 parts
Dispersant 2 parts
Defoaming agent 3 parts
And 20 parts of deionized water.
The solid content of the primer layer is 0.1-15%, the particle size is 10-300nm, and the thickness is 50 μm.
The primer layer is prepared by the following steps:
adding the acrylate emulsion and the defoaming agent into a stirrer, uniformly stirring, then adding the hollow glass beads, the zirconia ceramic powder, the ytterbium modified nano-alumina powder, the rare earth, the dispersing agent and a half amount of surfactant, uniformly stirring, then sequentially adding the polyacrylic acid, the starch, the deionized water, the rest surfactant and the tackifier, and uniformly stirring at 50-62 ℃ to obtain the required primer layer.
The preparation raw materials of the finish paint layer comprise the following components in parts by weight:
20 parts of acrylic ester emulsion
20 parts of canna powder
2 portions of preservative
1 part of calcium hydroxide
And 0.1 part of nano soil.
The solid content of the finishing paint layer is 0.1-15%, the thickness is 70 μm, and the water contact angle is not lower than 120 degrees.
The finish paint layer is prepared by the following steps:
adding the acrylate emulsion, the canna powder, the preservative, the calcium hydroxide and the nano soil into a stirrer, and uniformly stirring at 40-50 ℃ to obtain the required finish paint layer.
The canna powder is prepared by the following steps:
taking fresh and insect-free canna leaves, drying at 70-90 ℃ under the environment of 20-40% relative humidity until the water content is 10-15%, then grinding at 40-55 ℃, and filtering to obtain the canna powder with the particle size of 100-2500 nm.
The embodiment also discloses an application method of the heat-insulating waterproof coating composition for the building outer wall, which comprises the following steps:
the method comprises the steps of firstly coating a primer layer on the surface of an external wall of a building, then coating a finish paint layer at 50-62 ℃, standing and air-drying, wherein the sum of the thicknesses of the primer layer and the finish paint layer is 120 mu m.
The same as in example 1.
Example 3
The heat-insulating waterproof coating composition for the outer wall of the building comprises a primer layer and a finish layer, wherein the primer layer has a micropore structure and has viscosity, and the primer layer and the finish layer are bonded together.
The primer layer is prepared from the following raw materials in parts by weight:
acrylic ester emulsion 70 parts
Polyacrylic acid 20 parts
Hollow glass bead 25 parts
10 portions of starch
Zirconia ceramic powder 12 parts
Rare earth 5 parts
2 portions of surfactant
Tackifier 5 parts
1 part of dispersant
1 part of defoaming agent
10 parts of deionized water.
The solid content of the primer layer is 0.1-15%, the particle size is 10-300nm, and the thickness is 60 μm.
The primer layer is prepared by the following steps:
adding the acrylate emulsion and the defoaming agent into a stirrer, uniformly stirring, then adding the hollow glass beads, the zirconia ceramic powder, the ytterbium modified nano-alumina powder, the rare earth, the dispersing agent and a half amount of surfactant, uniformly stirring, then sequentially adding the polyacrylic acid, the starch, the deionized water, the rest surfactant and the tackifier, and uniformly stirring at 50-62 ℃ to obtain the required primer layer.
The preparation raw materials of the finish paint layer comprise the following components in parts by weight:
30 parts of acrylic ester emulsion
15 parts of canna powder
0.3 part of preservative
0.1 part of calcium hydroxide
And 0.01 part of nano soil.
The solid content of the finishing paint layer is 0.1-15%, the thickness is 60 mu m, and the water contact angle is not lower than 120 degrees.
The finish paint layer is prepared by the following steps:
adding the acrylate emulsion, the canna powder, the preservative, the calcium hydroxide and the nano soil into a stirrer, and uniformly stirring at 40-50 ℃ to obtain the required finish paint layer.
The canna powder is prepared by the following steps:
taking fresh and insect-free canna leaves, drying at 70-90 ℃ under the environment of 20-40% relative humidity until the water content is 10-15%, then grinding at 40-55 ℃, and filtering to obtain the canna powder with the particle size of 100-2500 nm.
The embodiment discloses an application method of a heat-insulating waterproof coating composition for building exterior walls, which comprises the following steps:
the method comprises the steps of firstly coating a primer layer on the surface of an external wall of a building, then coating a finish paint layer at 50-62 ℃, standing and air-drying, wherein the sum of the thicknesses of the primer layer and the finish paint layer is 120 mu m.
The same as in example 1.
The parts or structures of the invention which are not described in detail can be the same as those in the prior art or the existing products, and are not described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The heat-insulating waterproof coating composition for the building outer wall is characterized by comprising a primer layer and a finish layer, wherein the primer layer has a microporous structure and is adhesive, and the primer layer and the finish layer are bonded together.
2. The heat-insulating waterproof coating composition for the exterior wall of the building as claimed in claim 1, wherein the primer layer is prepared from the following raw materials in parts by weight:
60-80 parts of acrylic ester emulsion
20-40 parts of polyacrylic acid
20-30 parts of hollow glass beads
10-30 parts of starch
10-15 parts of zirconia ceramic powder
0-10 parts of ytterbium modified nano alumina powder
2-10 parts of rare earth
2-4 parts of surfactant
0-5 parts of tackifier
1-5 parts of dispersant
1-5 parts of defoaming agent
10-20 parts of deionized water.
3. The heat-insulating waterproof coating composition for the exterior wall of a building as claimed in claim 2, wherein the primer layer has a solid content of 0.1 to 15%, a particle size of 10 to 300nm, and a thickness of 50 to 75 μm.
4. The heat-insulating waterproof coating composition for the exterior wall of the building as claimed in claim 2, wherein the primer layer is prepared by the following steps:
adding the acrylate emulsion and the defoaming agent into a stirrer, uniformly stirring, then adding the hollow glass beads, the zirconia ceramic powder, the ytterbium modified nano-alumina powder, the rare earth, the dispersing agent and a half amount of surfactant, uniformly stirring, then sequentially adding the polyacrylic acid, the starch, the deionized water, the rest surfactant and the tackifier, and uniformly stirring at 50-62 ℃ to obtain the required primer layer.
5. The heat-insulating waterproof coating composition for the exterior wall of the building as claimed in claim 1, wherein the raw material for preparing the finish paint layer comprises the following components in parts by weight:
20-30 parts of acrylate emulsion
15-20 parts of canna powder
0.2 to 2 portions of preservative
0.1 to 1 portion of calcium hydroxide
0.01-0.1 part of nano soil.
6. The heat-insulating waterproof coating composition for the external wall of a building as claimed in claim 5, wherein the solid content of the top coat layer is 0.1-15%, the thickness is 50-75 μm, and the water contact angle is not less than 120 °.
7. The heat-insulating waterproof coating composition for the external wall of the building as claimed in claim 5, wherein the top coat layer is prepared by the following steps:
adding the acrylate emulsion, the canna powder, the preservative, the calcium hydroxide and the nano soil into a stirrer, and uniformly stirring at 40-50 ℃ to obtain the required finish paint layer.
8. The heat-insulating waterproof coating composition for the external wall of the building as claimed in claim 7, wherein the canna powder is prepared by the following steps:
taking fresh and insect-free canna leaves, drying at 70-90 ℃ under the environment of 20-40% relative humidity until the water content is 10-15%, then grinding at 40-55 ℃, and filtering to obtain the canna powder with the particle size of 100-2500 nm.
9. The application method of the heat-insulating waterproof coating composition for the exterior wall of the building as claimed in any one of claims 1 to 8, characterized by comprising the steps of:
the method comprises the steps of firstly coating a primer layer on the surface of an exterior wall of a building, then coating a finish paint layer at 50-62 ℃, standing and air-drying, wherein the sum of the thicknesses of the primer layer and the finish paint layer is 100-150 mu m.
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Application publication date: 20220125 |