CN111205020A - Granite-like coating for heat-insulation building exterior wall and preparation method thereof - Google Patents
Granite-like coating for heat-insulation building exterior wall and preparation method thereof Download PDFInfo
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- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/54—Substitutes for natural stone, artistic materials or the like
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The invention provides a thermal insulation type granite-like coating for a building outer wall, which comprises the following raw materials in parts by weight: 300 parts of water 200-containing material, 10-20 parts of sodium carboxymethylcellulose, 2-5 parts of wetting dispersant, 400 parts of granite powder, 50-70 parts of quartz sand, 30-70 parts of phase change energy storage material, 2-6 parts of defoaming agent, 20-30 parts of silicone-acrylate emulsion, 10-20 parts of film forming additive and 1-3 parts of preservative. The granite-like coating for the heat-insulation building exterior wall has good heat-insulation performance, compact coating surface and loose interior, can effectively combine waterproof and heat-insulation performances, has high thermal stability, is a composite heat-insulation coating with excellent performance, has a heat conductivity coefficient of 0.011W/(m.k) -0.015W/(m.k), and has good heat-insulation effect.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a thermal insulation type granite-like coating for a building outer wall and a preparation method thereof.
Background
The coating is a material which is coated on the surface of an object, can be bonded with a base material and forms a complete and tough protective film, and the coating can not only protect the object, but also endow the object with color and luster, thereby playing a decorative role. The artificial granite coating is a common material for architectural decoration, simulates natural stone, has exquisite appearance and higher quality, can improve the decoration grade while playing a role in beautifying buildings, but the prior artificial granite coating generally uses pigment to carry out color matching on the coating and has low simulation degree. At present, consumers have higher requirements on the architectural coatings, and the architectural coatings are expected to have performance as well as aesthetic value. The natural granite has the characteristics of fresh and natural, elegant color, vivid and active texture, strong adhesive force, water resistance, alkali resistance, weather resistance, environmental protection, non-combustibility, good air permeability and the like, so that the natural granite is favored. But the heat conductivity coefficient is high (about 0.73W/(m.K)), and the heat insulation performance is avoided, so that the heat insulation system only has decoration and protection functions and has no synergistic energy-saving effect on an external heat insulation system of an external wall. Some nontoxic and good heat insulation coatings are also available, for example, CN101108931 discloses a water-based elastic heat insulation coating and a preparation method thereof, wherein two emulsions of elastic pure acrylic and silicone acrylic are used as film forming materials, and heat insulation materials, rutile titanium dioxide and other materials are also used, but the components of the coating are unstable and are easy to gradually decrease under solar radiation, so that the heat insulation effect is gradually attenuated, and the service life of the heat insulation coating is shortened.
Disclosure of Invention
The invention aims to provide a granite-like coating for a heat-insulation building outer wall and a preparation method thereof, which effectively combine waterproof and heat-insulation properties, have high thermal stability and excellent performance, are a composite heat-insulation coating, have a heat conductivity coefficient of 0.011W/(m.k) -0.015W/(m.k), and have good heat-insulation effect.
The novel phase change energy storage material is prepared in research and development, and has a better heat preservation and insulation effect compared with an energy storage material under the compounding action of the polyhydric alcohol and the paraffin.
The technical scheme of the invention is realized as follows:
the invention provides a thermal insulation type granite-like coating for a building outer wall, which comprises the following raw materials in parts by weight: 300 parts of water 200-containing material, 10-20 parts of sodium carboxymethylcellulose, 2-5 parts of wetting dispersant, 400 parts of granite stone powder, 50-70 parts of quartz sand, 30-70 parts of phase change energy storage material, 2-6 parts of defoamer, 20-30 parts of silicone-acrylate emulsion, 10-20 parts of film forming additive and 1-3 parts of preservative;
the film-forming auxiliary agent is one of propylene glycol butyl ether and propylene glycol methyl ether acetate;
the phase change energy storage material is obtained by compounding and mixing polyol, paraffin and lecithin, adding the mixture into high-temperature calcined diatomite powder, uniformly stirring, solidifying, grinding, heating, homogenizing, continuously cooling, solidifying and grinding.
As a further improvement of the invention, the feed comprises the following raw materials in parts by weight: 280 parts of 220-fold water, 12-18 parts of sodium carboxymethylcellulose, 3-5 parts of wetting dispersant, 380 parts of 320-fold granite powder, 55-65 parts of quartz sand, 40-60 parts of phase change energy storage material, 3-5 parts of defoamer, 22-26 parts of silicone-acrylate emulsion, 12-17 parts of film forming additive and 2-3 parts of preservative.
As a further improvement of the invention, the feed comprises the following raw materials in parts by weight: 260 parts of water, 15 parts of sodium carboxymethylcellulose, 4 parts of wetting dispersant, 350 parts of granite powder, 60 parts of quartz sand, 50 parts of phase change energy storage material, 4 parts of defoaming agent, 24 parts of silicone-acrylic emulsion, 16 parts of film forming additive and 2.5 parts of preservative.
As a further improvement of the invention, the preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking diatomite in dilute alkali solution, washing with clear water, calcining in a muffle furnace at 1000-1500 ℃ for 3-5h, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting the polyhydric alcohol, the paraffin and the lecithin, then uniformly mixing, keeping a liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 120-mesh temperature, homogenizing at 10000-mesh 12000r/min for 1-2min, continuing cooling and solidifying, grinding to 100-mesh temperature and 120-mesh temperature, and obtaining the phase change energy storage material.
As a further improvement of the invention, the polyalcohol is one or a mixture of several selected from polyethylene glycol 200, polyethylene glycol 400, neopentyl glycol, pentaerythritol, trimethylolethane and trimethylolpropane.
As a further improvement of the invention, the mass ratio of the polyhydric alcohol to the paraffin to the lecithin is (3-7): (5-10): 1, the mass ratio of the diatomite to the total mass of the polyhydric alcohol, the paraffin and the lecithin is 1: (0.4-0.7), wherein the dilute alkali solution is 0.01-0.1mol/L alkali solution, and the alkali is selected from one or a mixture of NaOH, KOH and barium hydroxide.
As a further improvement of the invention, the mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of 100-120 meshes of granite powder is 60-75%.
As a further improvement of the invention, the defoaming agent is selected from any one or two of a mineral oil defoaming agent, a mixture defoaming agent of aliphatic hydrocarbon and emulsifier which are mixed in any proportion, and the wetting dispersant is selected from one or two of a polycarboxylic acid ammonium salt dispersant, a nonionic surface active dispersant or an anionic surface active dispersant which are mixed in any proportion; the preservative is selected from any one of isothiazolinone, 1, 2-benzisothiazolin-3-one, 2-dibromo-cyanoacetamide and methylene bis thiocyanate or two of the isothiazolinone, the 1, 2-benzisothiazolin-3-one and the 2, 2-dibromo-cyanoacetamide are mixed in any proportion.
The invention further provides a preparation method of the granite-like coating for the heat-insulation building exterior wall, which specifically comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, stirring and slowly heating to 30-50 ℃ at the rotating speed of 150r/min under stirring, continuously stirring for 3-5h, adding a phase change energy storage material and a wetting dispersant, increasing the rotating speed to 500r/min under stirring, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 30-60min to obtain a mixed paint;
s2, adding the rest water, the silicone-acrylic emulsion, the defoaming agent, the film forming assistant and the preservative into another container, homogenizing to obtain a coating emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 20-30min at 500r/min of 300-.
As a further improvement of the invention, the homogenization condition is 10000-12000r/min homogenization for 1-2 min.
The invention has the following beneficial effects:
the granite-like coating for the heat-insulation building exterior wall has good heat-insulation performance, compact coating surface and loose interior, can effectively combine waterproof and heat-insulation performances, has high thermal stability, is a composite heat-insulation coating with excellent performance, has a heat conductivity coefficient of 0.011W/(m.k) -0.015W/(m.k), and has good heat-insulation effect.
According to the granite-like coating for the heat-insulation and heat-insulation building outer wall, the hard particles compounded by granite powder and quartz sand are added to serve as aggregate components, the sodium carboxymethyl cellulose serving as a binding material is optimized, the granite simulation of the coating is improved, the mechanical properties such as wear resistance and compression resistance of the coating are improved, and the adhesion of a paint film to a base material is improved.
The phase-change energy storage material is added, organic matters and other impurity components on the surface of diatomite are removed after the diatomite is treated by dilute alkali solution, the diatomite powder with a porous microstructure is formed after further high-temperature calcination, a solid material (a compound solution of polyhydric alcohol, paraffin and lecithin) for phase-change energy storage is added, the compound solution flows into a hole to form the phase-change energy storage material, and the phase-change energy storage material is homogenized after further heating, so that the compound solution can more uniformly flow into the porous structure of the diatomite to form phase-change energy storage microspheres; the polyhydric alcohol and the paraffin have better heat absorption and energy storage capacity, and can be better dissolved mutually under the combined action of lecithin, so that better energy storage and heat insulation effects can be exerted;
the coating provided by the invention not only has excellent stone simulation characteristics, but also has stable performance, does not influence the rheological property of the coating, and can obviously improve the decorative effect. The coating not only has permeability, but also has mutually infiltrated and overlapped particles and high simulation degree. And has the advantages of stronger heat preservation and insulation property, fire resistance, waterproof capability, durability, water-based environmental protection and the like compared with the granite-like coating.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The concrete parameters of the raw materials in the embodiment of the invention are as follows:
the anionic surface active dispersant is ST698 of triton chemistry.
Granite stone powder with the particle size of 2-4 mm, Yishui county Meng Ke Stone Co.
Quartz sand with density of 2.8-2.9 (g/cm)3) Fineness of 20-40 meshes, Hai City Taiding Huaxin mineral products processing Co.
The mixture of aliphatic hydrocarbon and emulsifier defoamer is a mineral oil defoamer 1818.
Silicone acrylic emulsion, grade 707, viscosity 4000S,
the isothiazolinone preservative is benzisothiazolinone.
Diatomite with a fineness of 150-800 meshes.
Example 1Granite-like coating for heat-insulation building exterior wall
The raw materials comprise the following components in parts by weight: 200 parts of water, 10 parts of sodium carboxymethylcellulose, 2 parts of polycarboxylate ammonium salt dispersant, 300 parts of granite stone powder, 50 parts of quartz sand, 30 parts of phase change energy storage material, 2 parts of mineral oil defoamer, 20 parts of silicone-acrylic emulsion, 10 parts of propylene glycol butyl ether and 1 part of isothiazolinone preservative.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the 100-120 meshes of granite powder is 60 percent.
The preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking 22.5g of diatomite in 0.01mol/L diluted NaOH solution, cleaning with clear water, calcining in a muffle furnace at 1000 ℃ for 3h, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting 3g of neopentyl glycol, 5g of paraffin and 1g of lecithin, uniformly mixing, keeping the liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 120 ℃, homogenizing at 10000r/min for 1min, continuing cooling and solidifying, and grinding to 120 meshes at 100 to obtain the phase change energy storage material.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 30 ℃ at the rotating speed of 100r/min while stirring, continuously stirring for 3 hours, adding a phase change energy storage material and a polycarboxylate ammonium salt dispersing agent, increasing the rotating speed to 300r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 30 minutes to obtain a mixed paint vehicle;
s2, adding the rest water, the silicone-acrylic emulsion, the mineral oil defoamer, the propylene glycol butyl ether and the isothiazolinone preservative into another container, homogenizing for 1min at 10000r/min to obtain a coating emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 20min at 300r/min to obtain the thermal insulation type granite-like coating for the building exterior wall.
Example 2Granite-like coating for heat-insulation building exterior wall
The raw materials comprise the following components in parts by weight: 300 parts of water, 20 parts of sodium carboxymethylcellulose, 5 parts of a nonionic surface active dispersant, 400 parts of granite stone powder, 70 parts of quartz sand, 70 parts of a phase change energy storage material, 6 parts of a mineral oil defoaming agent, 30 parts of a silicone-acrylic emulsion, 20 parts of propylene glycol butyl ether and 3 parts of 1, 2-benzisothiazolin-3-one.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the 100-120 meshes of granite powder is 75 percent.
The preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking 25.7g of diatomite in 0.1mol/L diluted KOH solution, cleaning with clear water, calcining at 1500 ℃ in a muffle furnace for 5 hours, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting 7g of pentaerythritol, 10g of paraffin and 1g of lecithin, uniformly mixing, keeping the liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 150 ℃, homogenizing at 12000r/min for 2min, continuing cooling and solidifying, and grinding to 100-120 meshes to obtain the phase change energy storage material.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 50 ℃ at the rotating speed of 150r/min while stirring, continuously stirring for 5 hours, adding a phase change energy storage material and a nonionic surface active dispersing agent, increasing the rotating speed to 500r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 60 minutes to obtain a mixed paint;
s2, adding the rest water, the silicone-acrylic emulsion, the mineral oil defoamer, the propylene glycol butyl ether, the 1, 2-benzisothiazolin-3-one into another container, homogenizing at 12000r/min for 2min to obtain a coating emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring at 500r/min for 30min to obtain the granite-like coating for the heat-insulation building outer wall.
Example 3Granite-like coating for heat-insulation building exterior wall
The raw materials comprise the following components in parts by weight: 220 parts of water, 12 parts of sodium carboxymethylcellulose, 3 parts of an anionic surface active dispersant, 320 parts of granite stone powder, 55 parts of quartz sand, 40 parts of a phase change energy storage material, 3 parts of a mineral oil defoaming agent, 22 parts of a silicone-acrylic emulsion, 12 parts of propylene glycol methyl ether acetate and 2 parts of 2, 2-dibromo-cyanoacetamide.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the granite powder with 100-120 meshes accounts for 62 percent.
The preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking 27.5g of diatomite in 0.04mol/L diluted barium hydroxide, cleaning with clear water, calcining at 1150 ℃ for 3.5h in a muffle furnace, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting 4g of trimethylolpropane, 6g of paraffin and 1g of lecithin, uniformly mixing, keeping the liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 125 ℃, homogenizing at 10500r/min for 1min, continuing cooling and solidifying, and grinding to 100-120 meshes to obtain the phase change energy storage material.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 35 ℃ at the rotating speed of 125r/min while stirring, continuously stirring for 4 hours, adding a phase change energy storage material and an anionic surface active dispersing agent, increasing the rotating speed to 350r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 35 minutes to obtain a mixed paint vehicle;
s2, adding the rest water, the silicone-acrylic emulsion, the mineral oil defoamer, the propylene glycol methyl ether acetate and the 2, 2-dibromo-cyanoacetamide into another container, homogenizing for 1min at 10500r/min to obtain a coating emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 22min at 350r/min to obtain the thermal insulation granite-imitating coating for the building exterior wall.
Example 4Granite-like coating for heat-insulation building exterior wall
The raw materials comprise the following components in parts by weight: 280 parts of water, 18 parts of sodium carboxymethylcellulose, 5 parts of an anionic surface active dispersant, 380 parts of granite stone powder, 65 parts of quartz sand, 60 parts of a phase change energy storage material, 5 parts of a mineral oil defoaming agent, 26 parts of a silicone-acrylic emulsion, 17 parts of propylene glycol methyl ether acetate and 3 parts of methylene bis thiocyanate.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the 100-120 meshes of granite powder is 72 percent.
The preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking 32g of diatomite in 0.08mol/L diluted NaOH solution, washing with clear water, calcining at 1450 ℃ in a muffle furnace for 4h, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting 6g of trimethylolethane, 9g of paraffin and 1g of lecithin, uniformly mixing, keeping the liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 145 ℃, homogenizing at 11500r/min for 2min, continuing cooling and solidifying, and grinding to 100-120 meshes to obtain the phase change energy storage material.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 45 ℃ at the rotating speed of 135r/min while stirring, continuously stirring for 4 hours, adding a phase change energy storage material and an anionic surface active dispersing agent, increasing the rotating speed to 450r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 45 minutes to obtain a mixed paint;
s2, adding the rest water, the silicone-acrylic emulsion, the mineral oil defoamer, the propylene glycol methyl ether acetate and the methylene bis-thiocyanate into another container, homogenizing for 2min at 11500r/min to obtain a coating emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 28min at 450r/min to obtain the thermal insulation type granite-imitated coating for the building exterior wall.
Example 5Granite-like coating for heat-insulation building exterior wall
The raw materials comprise the following components in parts by weight: 260 parts of water, 15 parts of sodium carboxymethylcellulose, 4 parts of an anionic surface active dispersant, 350 parts of granite stone powder, 60 parts of quartz sand, 50 parts of a phase change energy storage material, 4 parts of a mixture defoamer of aliphatic hydrocarbon and an emulsifier, 24 parts of silicone-acrylic emulsion, 16 parts of propylene glycol methyl ether acetate and 2.5 parts of methylene bis thiocyanate.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the granite powder with 100-120 meshes accounts for 68 percent.
The preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking 26g of diatomite in 0.05mol/L diluted KOH solution, cleaning with clear water, calcining in a muffle furnace at 1250 ℃ for 4 hours, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting 5g of polyethylene glycol 200, 7g of paraffin and 1g of lecithin, uniformly mixing, keeping the liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 135 ℃, homogenizing at 11000r/min for 1.5min, continuing cooling and solidifying, and grinding to 100-120 meshes to obtain the phase change energy storage material.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 40 ℃ at the rotating speed of 125r/min while stirring, continuously stirring for 4 hours, adding a phase change energy storage material and an anionic surface active dispersing agent, increasing the rotating speed to 400r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 45 minutes to obtain a mixed paint;
s2, adding the rest of water, the silicone-acrylic emulsion, the mixture defoamer of aliphatic hydrocarbon and an emulsifier, propylene glycol methyl ether acetate and methylene bis thiocyanate into another container, homogenizing for 1.5min at 11000r/min to obtain a coated emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 25min at 400r/min to obtain the thermal insulation type granite-imitated coating for the building exterior wall.
Comparative example 1
Compared with example 5, common hollow glass beads (purchased from Dongyunou New Material Co., Ltd.) are used to replace the phase change energy storage material.
The raw materials comprise the following components in parts by weight: 260 parts of water, 15 parts of sodium carboxymethylcellulose, 4 parts of an anionic surface active dispersant, 350 parts of granite stone powder, 60 parts of quartz sand, 50 parts of common hollow glass beads, 4 parts of a mixture defoamer of aliphatic hydrocarbon and an emulsifier, 24 parts of silicone-acrylic emulsion, 16 parts of propylene glycol methyl ether acetate and 2.5 parts of methylene bis thiocyanate.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the granite powder with 100-120 meshes accounts for 68 percent.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 40 ℃ at the rotating speed of 125r/min while stirring, continuously stirring for 4 hours, adding common hollow glass beads and an anionic surface active dispersing agent, increasing the rotating speed to 400r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 45 minutes to obtain a mixed paint vehicle;
s2, adding the rest of water, the silicone-acrylic emulsion, the mixture defoamer of aliphatic hydrocarbon and an emulsifier, propylene glycol methyl ether acetate and methylene bis thiocyanate into another container, homogenizing for 1.5min at 11000r/min to obtain a coated emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 25min at 400r/min to obtain the thermal insulation type granite-imitated coating for the building exterior wall.
Comparative example 2
Compared with example 5, no anionic surface active dispersant was added, and other conditions were not changed.
The raw materials comprise the following components in parts by weight: 264 parts of water, 15 parts of sodium carboxymethylcellulose, 350 parts of granite powder, 60 parts of quartz sand, 50 parts of phase change energy storage material, 4 parts of a mixture defoamer of aliphatic hydrocarbon and an emulsifier, 24 parts of silicone-acrylic emulsion, 16 parts of propylene glycol methyl ether acetate and 2.5 parts of methylene bis thiocyanate.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the granite powder with 100-120 meshes accounts for 68 percent.
The preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking 26g of diatomite in 0.05mol/L diluted KOH solution, cleaning with clear water, calcining in a muffle furnace at 1250 ℃ for 4 hours, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting 5g of polyethylene glycol 200, 7g of paraffin and 1g of lecithin, uniformly mixing, keeping the liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 135 ℃, homogenizing at 11000r/min for 1.5min, continuing cooling and solidifying, and grinding to 100-120 meshes to obtain the phase change energy storage material.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 40 ℃ at the rotating speed of 125r/min while stirring, continuously stirring for 4 hours, adding a phase change energy storage material, increasing the rotating speed to 400r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 45 minutes to obtain a mixed paint vehicle;
s2, adding the rest of water, the silicone-acrylic emulsion, the mixture defoamer of aliphatic hydrocarbon and an emulsifier, propylene glycol methyl ether acetate and methylene bis thiocyanate into another container, homogenizing for 1.5min at 11000r/min to obtain a coated emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 25min at 400r/min to obtain the thermal insulation type granite-imitated coating for the building exterior wall.
Comparative example 3
Compared with example 5, the phase change energy storage material is not added, and other conditions are not changed.
The raw materials comprise the following components in parts by weight: 310 parts of water, 15 parts of sodium carboxymethylcellulose, 4 parts of an anionic surface active dispersant, 350 parts of granite stone powder, 60 parts of quartz sand, 4 parts of a mixture defoamer of aliphatic hydrocarbon and an emulsifier, 24 parts of silicone-acrylic emulsion, 16 parts of propylene glycol methyl ether acetate and 2.5 parts of methylene bis thiocyanate.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the granite powder with 100-120 meshes accounts for 68 percent.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 40 ℃ at the rotating speed of 125r/min while stirring, continuously stirring for 4 hours, adding an anionic surface active dispersing agent, increasing the rotating speed to 400r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring for 45 minutes at the original speed to obtain a mixed paint vehicle;
s2, adding the rest of water, the silicone-acrylic emulsion, the mixture defoamer of aliphatic hydrocarbon and an emulsifier, propylene glycol methyl ether acetate and methylene bis thiocyanate into another container, homogenizing for 1.5min at 11000r/min to obtain a coated emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 25min at 400r/min to obtain the thermal insulation type granite-imitated coating for the building exterior wall.
Comparative example 4
Compared with the example 5, no paraffin is added in the preparation of the phase change energy storage material, and other conditions are not changed.
The raw materials comprise the following components in parts by weight: 260 parts of water, 15 parts of sodium carboxymethylcellulose, 4 parts of an anionic surface active dispersant, 350 parts of granite stone powder, 60 parts of quartz sand, 50 parts of a phase change energy storage material, 4 parts of a mixture defoamer of aliphatic hydrocarbon and an emulsifier, 24 parts of silicone-acrylic emulsion, 16 parts of propylene glycol methyl ether acetate and 2.5 parts of methylene bis thiocyanate.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the granite powder with 100-120 meshes accounts for 68 percent.
The preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking 26g of diatomite in 0.05mol/L diluted KOH solution, cleaning with clear water, calcining in a muffle furnace at 1250 ℃ for 4 hours, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting 12g of polyethylene glycol 200 and 1g of lecithin, uniformly mixing, keeping a liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 135 ℃, homogenizing at 11000r/min for 1.5min, continuing cooling and solidifying, grinding to 100-120 meshes, and obtaining the phase change energy storage material.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 40 ℃ at the rotating speed of 125r/min while stirring, continuously stirring for 4 hours, adding a phase change energy storage material and an anionic surface active dispersing agent, increasing the rotating speed to 400r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 45 minutes to obtain a mixed paint;
s2, adding the rest of water, the silicone-acrylic emulsion, the mixture defoamer of aliphatic hydrocarbon and an emulsifier, propylene glycol methyl ether acetate and methylene bis thiocyanate into another container, homogenizing for 1.5min at 11000r/min to obtain a coated emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 25min at 400r/min to obtain the thermal insulation type granite-imitated coating for the building exterior wall.
Comparative example 5
Compared with the example 5, the preparation of the phase change energy storage material is not added with the polyethylene glycol 200, and other conditions are not changed.
The raw materials comprise the following components in parts by weight: 260 parts of water, 15 parts of sodium carboxymethylcellulose, 4 parts of an anionic surface active dispersant, 350 parts of granite stone powder, 60 parts of quartz sand, 50 parts of a phase change energy storage material, 4 parts of a mixture defoamer of aliphatic hydrocarbon and an emulsifier, 24 parts of silicone-acrylic emulsion, 16 parts of propylene glycol methyl ether acetate and 2.5 parts of methylene bis thiocyanate.
The mesh number of the granite powder is 80-120 meshes, wherein the weight proportion of the granite powder with 100-120 meshes accounts for 68 percent.
The preparation method of the phase change energy storage material comprises the following steps:
s1, treating diatomite: soaking 26g of diatomite in 0.05mol/L diluted KOH solution, cleaning with clear water, calcining in a muffle furnace at 1250 ℃ for 4 hours, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting 12g of paraffin and 1g of lecithin, uniformly mixing, keeping a liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 135 ℃, homogenizing at 11000r/min for 1.5min, continuing cooling and solidifying, grinding to 100-120 meshes, and obtaining the phase change energy storage material.
The preparation method of the granite-like coating for the heat-insulation building outer wall comprises the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, slowly heating to 40 ℃ at the rotating speed of 125r/min while stirring, continuously stirring for 4 hours, adding a phase change energy storage material and an anionic surface active dispersing agent, increasing the rotating speed to 400r/min, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 45 minutes to obtain a mixed paint;
s2, adding the rest of water, the silicone-acrylic emulsion, the mixture defoamer of aliphatic hydrocarbon and an emulsifier, propylene glycol methyl ether acetate and methylene bis thiocyanate into another container, homogenizing for 1.5min at 11000r/min to obtain a coated emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 25min at 400r/min to obtain the thermal insulation type granite-imitated coating for the building exterior wall.
Test example 1
The thermal insulation type granite-like coating for the exterior wall of the building prepared in the embodiments 1 to 5 and the comparative examples 1 to 5 of the present invention and a commercially available granite-like coating (purchased from zeri coatings ltd, langzhou) were subjected to performance tests, and the results are shown in table 1.
TABLE 1
As can be seen from the table above, the granite-like coating for the thermal insulation building exterior wall prepared in the embodiments 1 to 5 of the invention has various performances obviously superior to those of the commercial products, and has an extremely low thermal conductivity coefficient (0.011W/(m.k) -0.015W/(m.k)), and simultaneously has better mechanical properties.
Compared with the prior art, the phase change energy storage material is replaced by the common glass beads in the comparative example 1, the heat conductivity coefficient is obviously increased, the surface temperature difference is obviously reduced, and the prepared phase change energy storage material enables the paint to have better heat preservation and heat insulation performance, and meanwhile, the mechanical property of the paint added with the common glass beads is poorer;
the wetting dispersant and the phase change energy storage material are not added in the comparative example 2 and the comparative example 3 respectively, the heat conductivity is obviously reduced, and the addition of the wetting dispersant and the phase change energy storage material can improve the heat preservation and heat insulation performance of the coating and has a synergistic effect.
In the comparative examples 4 and 5, when the phase change energy storage material is prepared, the paraffin and the polyhydric alcohol glycol 200 are not added respectively, the paraffin and the polyhydric alcohol glycol 200 have a slight influence on the heat preservation and heat insulation performance of the coating, the decrease of the comparative examples 2 and 3 is not obvious, the single paraffin or glycol 200 can also have a certain heat preservation and heat insulation effect, but the compounding of the paraffin and the glycol can obviously improve the heat preservation and heat insulation performance of the phase change energy storage material, so that the heat conductivity coefficient of the coating is reduced.
The paint vehicle of the heat-insulating and heat-insulating granite-like coating for the exterior wall of the building prepared in the embodiments 1 to 5 of the invention is detected according to the standard HG/T4343-2012 waterborne multicolor architectural coating, the container has normal state, low-temperature stability and no deterioration, the thermal storage stability is passed, the drying time (surface dry) is less than or equal to 4h, the composite coating has no abnormality in water resistance (48h), the composite coating has no abnormality in alkali resistance (24h), the composite coating has no washing resistance for more than 2000 times, the composite coating has the crack covering capacity (standard state) of more than or equal to 0.5mm, the composite coating has no abnormality in acid rain resistance (48h), the composite coating has no abnormality in damp-proof cold-hot cycling resistance (5 times), the composite coating has the stain resistance of less than or equal to 2 grades, the composite coating has the artificial aging resistance for 1000h, does not bubble, does not peel off, has no crack, no pulverization, no obvious color change and no obvious light loss, and completely meets the standard requirements of HG/T4343 supplement 2012 waterborne multicolor building coatings.
The phase change energy storage thermal insulation mortar has a different heat transfer mode from the common thermal insulation mortar. The heat energy conduction mode of the common thermal insulation mortar is as follows: the heat absorption-heat resistance-heat conduction-heat dissipation mode of the phase change energy storage thermal insulation mortar is as follows: the method comprises the steps of heat absorption, heat resistance, heat storage, heat release, heat conduction and heat dissipation. Obviously, in the heat conduction process, the phase change energy storage heat preservation mortar increases the heat storage and release processes, so that the heat conduction is greatly hindered, namely, the heat resistance value is increased, and the heat conductivity coefficient is reduced.
Compared with the prior art, the granite-like coating for the heat-insulating building exterior wall has the advantages of good heat-insulating property, compact coating surface, loose interior, capability of effectively combining waterproof and heat-insulating properties, high thermal stability, excellent performance, heat conductivity coefficient of 0.011W/(m.k) -0.015W/(m.k), and good heat-insulating effect.
According to the granite-like coating for the heat-insulation and heat-insulation building outer wall, the hard particles compounded by granite powder and quartz sand are added to serve as aggregate components, the sodium carboxymethyl cellulose serving as a binding material is optimized, the granite simulation of the coating is improved, the mechanical properties such as wear resistance and compression resistance of the coating are improved, and the adhesion of a paint film to a base material is improved.
The phase-change energy storage material is added, organic matters and other impurity components on the surface of diatomite are removed after the diatomite is treated by dilute alkali solution, the diatomite powder with a porous microstructure is formed after further high-temperature calcination, a solid material (a compound solution of polyhydric alcohol, paraffin and lecithin) for phase-change energy storage is added, the compound solution flows into a hole to form the phase-change energy storage material, and the phase-change energy storage material is homogenized after further heating, so that the compound solution can more uniformly flow into the porous structure of the diatomite to form phase-change energy storage microspheres; the polyhydric alcohol and the paraffin have better heat absorption and energy storage capacity, and can be better dissolved mutually under the combined action of lecithin, so that better energy storage and heat insulation effects can be exerted;
the coating provided by the invention not only has excellent stone simulation characteristics, but also has stable performance, does not influence the rheological property of the coating, and can obviously improve the decorative effect. The coating not only has permeability, but also has mutually infiltrated and overlapped particles and high simulation degree. And has the advantages of stronger heat preservation and insulation property, fire resistance, waterproof capability, durability, water-based environmental protection and the like compared with the granite-like coating.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The thermal insulation type granite-like coating for the building outer wall is characterized by comprising the following raw materials in parts by weight: 300 parts of water 200-containing material, 10-20 parts of sodium carboxymethylcellulose, 2-5 parts of wetting dispersant, 400 parts of granite stone powder, 50-70 parts of quartz sand, 30-70 parts of phase change energy storage material, 2-6 parts of defoamer, 20-30 parts of silicone-acrylate emulsion, 10-20 parts of film forming additive and 1-3 parts of preservative;
the film-forming auxiliary agent is one of propylene glycol butyl ether and propylene glycol methyl ether acetate;
the phase change energy storage material is obtained by compounding and mixing polyol, paraffin and lecithin, adding the mixture into high-temperature calcined diatomite powder, uniformly stirring, solidifying, grinding, heating, homogenizing, continuously cooling, solidifying and grinding.
2. The granite-like coating for the heat-insulation and heat-insulation type building outer wall according to claim 1 is characterized by comprising the following raw materials in parts by weight: 280 parts of 220-fold water, 12-18 parts of sodium carboxymethylcellulose, 3-5 parts of wetting dispersant, 380 parts of 320-fold granite powder, 55-65 parts of quartz sand, 40-60 parts of phase change energy storage material, 3-5 parts of defoamer, 22-26 parts of silicone-acrylate emulsion, 12-17 parts of film forming additive and 2-3 parts of preservative.
3. The granite-like coating for the heat-insulation and heat-insulation type building outer wall according to claim 2 is characterized by comprising the following raw materials in parts by weight: 260 parts of water, 15 parts of sodium carboxymethylcellulose, 4 parts of wetting dispersant, 350 parts of granite powder, 60 parts of quartz sand, 50 parts of phase change energy storage material, 4 parts of defoaming agent, 24 parts of silicone-acrylic emulsion, 16 parts of film forming additive and 2.5 parts of preservative.
4. The granite-like coating for the thermal insulation building external wall according to claim 1, wherein the preparation method of the phase-change energy storage material is as follows:
s1, treating diatomite: soaking diatomite in dilute alkali solution, washing with clear water, calcining in a muffle furnace at 1000-1500 ℃ for 3-5h, cooling, taking out, and grinding to 30-80 meshes for later use;
s2, respectively heating and melting the polyhydric alcohol, the paraffin and the lecithin, then uniformly mixing, keeping a liquid state, adding the mixture into the diatomite powder obtained in the step S1, uniformly stirring, cooling and solidifying, grinding to 30-80 meshes, heating to 120-mesh temperature, homogenizing at 10000-mesh 12000r/min for 1-2min, continuing cooling and solidifying, grinding to 100-mesh temperature and 120-mesh temperature, and obtaining the phase change energy storage material.
5. The granite imitation coating for the thermal insulation building exterior wall as claimed in claim 4, wherein the polyol is selected from one or a mixture of polyethylene glycol 200, polyethylene glycol 400, neopentyl glycol, pentaerythritol, trimethylolethane and trimethylolpropane.
6. The granite-like coating for the thermal insulation building external wall as claimed in claim 4, wherein the mass ratio of the polyol to the paraffin to the lecithin is (3-7): (5-10): 1, the mass ratio of the diatomite to the total mass of the polyhydric alcohol, the paraffin and the lecithin is 1: (0.4-0.7), wherein the dilute alkali solution is 0.01-0.1mol/L alkali solution, and the alkali is selected from one or a mixture of NaOH, KOH and barium hydroxide.
7. The granite imitation coating for the heat-insulation and heat-insulation type building outer wall as claimed in claim 1, wherein the mesh number of the granite powder is 80-120 meshes, and the weight proportion of 100-120 meshes of the granite powder is 60-75%.
8. The granite-like coating for the thermal insulation building external wall as claimed in claim 1, wherein the defoaming agent is one or two of mineral oil defoaming agent, aliphatic hydrocarbon and emulsifier mixture defoaming agent mixed in any proportion, and the wetting dispersant is one or two of polycarboxylic acid ammonium salt dispersant, nonionic surface active dispersant or anionic surface active dispersant mixed in any proportion; the preservative is selected from any one of isothiazolinone, 1, 2-benzisothiazolin-3-one, 2-dibromo-cyanoacetamide and methylene bis thiocyanate or two of the isothiazolinone, the 1, 2-benzisothiazolin-3-one and the 2, 2-dibromo-cyanoacetamide are mixed in any proportion.
9. The preparation method of the artificial granite coating for the thermal insulation building external wall according to any one of claims 1 to 8, which is characterized by comprising the following steps:
s1, adding sodium carboxymethylcellulose and water with the volume of 3/4 into a container, stirring and slowly heating to 30-50 ℃ at the rotating speed of 150r/min under stirring, continuously stirring for 3-5h, adding a phase change energy storage material and a wetting dispersant, increasing the rotating speed to 500r/min under stirring, continuously adding granite powder and quartz sand after uniformly stirring, and stirring at the original speed for 30-60min to obtain a mixed paint;
s2, adding the rest water, the silicone-acrylic emulsion, the defoaming agent, the film forming assistant and the preservative into another container, homogenizing to obtain a coating emulsion, fully mixing the emulsion and the mixed paint obtained in the step S1, and stirring for 20-30min at 500r/min of 300-.
10. The method as claimed in claim 9, wherein the homogenization condition is 10000-12000r/min for 1-2 min.
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| CN101693807A (en) * | 2009-10-21 | 2010-04-14 | 天津市耀新科技发展有限公司 | Drainage phase-change temperature-regulation heat-insulation coating and preparation method thereof |
| CN108409195A (en) * | 2018-03-25 | 2018-08-17 | 安徽东泰建筑装饰材料有限公司 | Thermal-insulation artificial granite paint |
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2020
- 2020-03-17 CN CN202010185412.2A patent/CN111205020A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693807A (en) * | 2009-10-21 | 2010-04-14 | 天津市耀新科技发展有限公司 | Drainage phase-change temperature-regulation heat-insulation coating and preparation method thereof |
| CN108409195A (en) * | 2018-03-25 | 2018-08-17 | 安徽东泰建筑装饰材料有限公司 | Thermal-insulation artificial granite paint |
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| FEREIDOON SHAHIDI: "《贝雷油脂化学与工艺学（第六版） 食用油脂产品：特种油脂与油脂产品（第三卷）》", 30 September 2016, 中国轻工业出版社 * |
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