CN113980530A - Nano-reinforced ultrathin high-hardness organic-inorganic composite coating and preparation method thereof - Google Patents
Nano-reinforced ultrathin high-hardness organic-inorganic composite coating and preparation method thereof Download PDFInfo
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- CN113980530A CN113980530A CN202111546103.4A CN202111546103A CN113980530A CN 113980530 A CN113980530 A CN 113980530A CN 202111546103 A CN202111546103 A CN 202111546103A CN 113980530 A CN113980530 A CN 113980530A
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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
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
- C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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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
- C08K2003/2265—Oxides; Hydroxides of metals of iron
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Abstract
The invention provides a nano-reinforced ultrathin high-hardness organic-inorganic composite coating and a preparation method thereof, and relates to the field of coatings. The nano-reinforced ultrathin high-hardness organic-inorganic composite coating comprises a liquid material and powder, and is prepared from the following components in parts by weight: 1-50 parts of acrylic emulsion, 0.1-0.7 part of defoaming agent, 0.1-0.7 part of antibacterial agent and 1-50 parts of water; powder lot: 20-60 parts of 52.5 white cement, 40-80 parts of 40-325-mesh quartz sand, 1-10 parts of heavy calcium carbonate, 1-10 parts of talcum powder, 1-5 parts of white aluminate cement, 0.1-0.5 part of water reducing agent, 0.1-1.0 part of water retaining agent, 0.1-1.0 part of starch ether, 0.1-0.5 part of defoaming agent, 0.1-0.5 part of fumed silica, 0.1-0.5 part of fumed aluminum oxide and 5-15 parts of solid pyrolysate; the mass ratio of the liquid material to the powder material is 0.20-0.50: 1. By adding the solid pyrolysate, the coating has a porous structure, and the color of the decomposed solid pyrolysate can be changed, so that a pattern can be formed.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a nano-reinforced ultrathin high-hardness organic-inorganic composite coating and a preparation method thereof.
Background
The existing indoor and outdoor decorative coatings, common synthetic resin emulsion sand wall-shaped building coatings (also called stone paint, sand glue paint, texture paint and the like) and latex paints form a compact paint film because of organic matters, water in the wall cannot be freely diffused, the air permeability is poor, the bonding force between the paint and a concrete wall material is poor, the problems of peeling, falling, pulverization, color change and the like of the coating are easy to occur, the attractiveness is influenced, and the environment is damaged; common building facing mortar and the like are easy to crack, have single color, poor decorative effect and thicker coating, and particularly influence the use of indoor space area; and, since it contains components such as gypsum, it is inferior in water resistance.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a nano-reinforced ultrathin high-hardness organic-inorganic composite coating and a preparation method thereof, and solves the problems of easy peeling, falling off, pulverization and discoloration of the coating of the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a nano-reinforced ultrathin high-hardness organic-inorganic composite coating comprises a liquid material and a powder material, and is prepared from the following components in parts by weight:
liquid material: 1-50 parts of acrylic emulsion, 0.1-0.7 part of defoaming agent, 0.1-0.7 part of antibacterial agent and 1-50 parts of water;
powder lot: 20-60 parts of 52.5 white cement, 40-80 parts of 40-325-mesh quartz sand, 1-10 parts of heavy calcium carbonate, 1-10 parts of talcum powder, 1-5 parts of white aluminate cement, 0.1-0.5 part of water reducing agent, 0.1-1.0 part of water retaining agent, 0.1-1.0 part of starch ether, 0.1-0.5 part of defoaming agent, 0.1-0.5 part of fumed silica, 0.1-0.5 part of fumed aluminum oxide and 5-15 parts of solid pyrolysate;
the mass ratio of the liquid material to the powder material is 0.20-0.50: 1.
Preferably, the antibacterial agent is 1, 2-benzisothiazolin-3-one/2-methyl-4-isothiazoline.
Preferably, the whiteness of the quartz sand is more than or equal to 90, the content of silicon dioxide is more than or equal to 99%, and the mesh number of the quartz sand is one or more of 40 meshes, 80-120 meshes, 120-180 meshes and 325 meshes.
Preferably, the mesh number of the heavy calcium carbonate is 325 meshes, the mesh number of the talcum powder is 400 meshes, and the mesh number of the solid pyrolysis product is 500 meshes.
Preferably, the water reducing agent is a polycarboxylic acid water reducing agent, and the starch ether is modified potato starch ether.
Preferably, the water retaining agent is one or two of hydroxypropyl methyl cellulose ether and hydroxyethyl methyl cellulose ether, and the defoaming agent is one or more of mineral oil and polyethylene glycol, vegetable oil and polyethylene glycol or polysiloxane.
Preferably, the solid pyrolysate comprises one or more compounds, and the solid pyrolysate comprises basic copper carbonate, silicic acid colloid, magnesium hydroxide and iron hydroxide.
The preparation method based on the nano-reinforced ultrathin high-hardness organic-inorganic composite coating comprises the following steps:
the method comprises the following steps: adding the liquid materials into a mixing kettle according to the proportion, and stirring for 30min to obtain a liquid mixed raw material;
step two: putting the powder into a mixer according to the proportion, and fully stirring to obtain a solid mixed raw material;
step three: and mixing the liquid mixed raw materials and the solid mixed raw materials in proportion to obtain the coating.
A method for using the paint features that the paint is coated on the wall of building by coating apparatus, the coating is dried, the coating is heated, and the pyrolyzed solid substance is generated.
(III) advantageous effects
The invention provides a nano-reinforced ultrathin high-hardness organic-inorganic composite coating and a preparation method thereof.
The method has the following beneficial effects:
1. the invention has excellent mechanical strength property and bonding strength property, good wear resistance, and good flexibility due to the organic water-based acrylic emulsion contained in the coating, and the coating can not wrinkle, peel or fall off after being soaked in water and does not change color.
2. The invention is provided with the solid pyrolysate, and the porous coating is formed by the decomposition of the solid pyrolysate, thereby promoting the volatilization of water and improving the adhesion of the coating.
3. In the invention, solid pyrolysates with different pyrolysis temperatures are added, and pyrolysis treatment is carried out at different temperatures, so that color patterns can be drawn.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 first embodiment is as follows:
the embodiment of the invention provides a nano-reinforced ultrathin high-hardness organic-inorganic composite coating, which comprises a liquid material and a powder material, and is prepared from the following components in parts by weight:
liquid material: 50 parts of acrylic emulsion, 0.7 part of defoaming agent, 0.7 part of antibacterial agent and 50 parts of water;
powder lot: 60 parts of 52.5 white cement, 80 parts of 40-325-mesh quartz sand, 0 part of heavy calcium carbonate, 10 parts of talcum powder, 5 parts of white aluminate cement, 0.5 part of water reducing agent, 1.0 part of water retaining agent, 1.0 part of starch ether, 0.5 part of defoaming agent, 0.5 part of fumed silica, 0.5 part of fumed alumina and 15 parts of solid pyrolysate;
the mass ratio of the liquid material to the powder material is 0.2: 1.
The acrylic emulsion is special waterproof emulsion, and can be one or more of Andes AT3608T, Dow Tian dam 2012 and Pasteur Acronal PLUS 7676, the defoaming agent is one or more of mineral oil defoaming agent and organosilicon defoaming agent, and 52.5 white cement is preferably Albobo brand 52.5 white cement.
The antibacterial agent is 1, 2-benzisothiazolin-3-one/2-methyl-4-isothiazoline.
The preferred selection of the quartz sand is that the whiteness is more than or equal to 90, the content of silicon dioxide is more than or equal to 99%, the mesh number is one or more of 40 meshes, 80-120 meshes, 120-180 meshes and 325 meshes, the mesh number of coarse whiting is 325 meshes, the mesh number of talcum powder is 400 meshes, and the mesh number of solid pyrolysate is 500 meshes.
The water reducing agent is a polycarboxylic acid water reducing agent, the starch ether is modified potato starch ether, the water retaining agent is one or two of hydroxypropyl methyl cellulose ether and hydroxyethyl methyl cellulose ether, and the defoaming agent is one or more of mineral oil and polyethylene glycol, vegetable oil and polyethylene glycol or polysiloxane.
The white aluminate cement is preferably the Seka CA70 aluminate cement, and the fumed silica is the M-5 of the cabot; the gas-phase aluminum oxide is one of winning alumina C and Kabot alumina Spectral 100.
The solid pyrolysate comprises one or more compounds, and the solid pyrolysate comprises basic copper carbonate, silicic acid colloid, magnesium hydroxide and ferric hydroxide.
The high-strength low-temperature-resistant micro-cement is prepared by grading 52.5 white portland cement with quartz sand of different mesh grades, and a small amount of aluminate cement is added to be used as a coagulant of the portland cement, so that the quantity and the form of ettringite can be strictly controlled in the whole hydration process, and the micro-cement is ensured to have better mechanical strength and long-term stability; meanwhile, the nano-scale gas-phase silicon dioxide and the gas-phase aluminum oxide are added into the powder, so that the supplement and enhancement effects are achieved; the liquid material is superfine water-based acrylic emulsion with the particle size distribution below 1 mu m, and an organic film formed in the cement hardening process bonds the surfaces of a cement hydration product, unhydrated cement and a filler together, so that a compact structure with the inorganic cementing material providing strength for a main body framework, the organic film forming material filling toughening and nano particle reinforcing is finally formed. The quartz sand with different meshes is configured, so that the coating can form a smooth, fine or rough texture effect, and the artistic effect is very high.
This example uses the preparation method of example four.
Example two:
the embodiment of the invention provides a nano-reinforced ultrathin high-hardness organic-inorganic composite coating, which comprises a liquid material and a powder material, and is prepared from the following components in parts by weight:
liquid material: 50 parts of acrylic emulsion, 0.3 part of defoaming agent, 0.4 part of antibacterial agent and 50 parts of water;
powder lot: 40 parts of 52.5 white cement, 60 parts of 40-325-mesh quartz sand, 5 parts of heavy calcium carbonate, 5 parts of talcum powder, 3 parts of white aluminate cement, 0.3 part of water reducing agent, 0.5 part of water retaining agent, 0.5 part of starch ether, 0.3 part of defoaming agent, 0.3 part of fumed silica, 0.4 part of fumed alumina and 10 parts of solid pyrolysate;
the mass ratio of the liquid material to the powder material is 0.35-0.50: 1.
This example uses the preparation method of example four.
Example three:
the embodiment of the invention provides a nano-reinforced ultrathin high-hardness organic-inorganic composite coating, which comprises a liquid material and a powder material, and is prepared from the following components in parts by weight:
liquid material: 20 parts of acrylic emulsion, 0.1 part of defoaming agent, 0.1 part of antibacterial agent and 20 parts of water;
powder lot: 20 parts of 52.5 white cement, 40 parts of 40-325-mesh quartz sand, 1 part of heavy calcium carbonate, 1 part of talcum powder, 1 part of white aluminate cement, 0.1 part of water reducing agent, 0.1 part of water retaining agent, 0.1 part of starch ether, 0.1 part of defoaming agent, 0.1 part of fumed silica, 0.1 part of fumed alumina and 5 parts of solid pyrolysate;
the mass ratio of the liquid material to the powder material is 0.50: 1.
This example uses the preparation method of example four.
Example four:
the embodiment of the invention provides a preparation method based on a nano-reinforced ultrathin high-hardness organic-inorganic composite coating, which comprises the following steps:
the method comprises the following steps: adding the liquid materials into a mixing kettle according to the proportion, opening a stirring motor to stir and mix the liquid materials, and stirring for 30min to obtain a liquid mixed material;
step two: putting the powder into a mixer according to the proportion, turning on a stirring motor to uniformly stir and mix the solid raw materials, and fully stirring to obtain solid mixed raw materials;
step three: and mixing the liquid mixed raw materials and the solid mixed raw materials in proportion to obtain the coating.
Example five:
the embodiment of the invention provides a coating using method, and the coating produced by the preparation method of a nano-reinforced ultrathin high-hardness organic-inorganic composite coating is coated on a building wall by using coating equipment, and after the coating is dried, the coating is heated, and solid pyrolysates are pyrolyzed.
Solid pyrolysate adopts and to volatilize and be gaseous or can the transformation gas, like basic copper carbonate pyrolysis volatilize carbon dioxide, magnesium hydrate can the pyrolysis produce water, water can gasify, to the coating heating, the solid pyrolysate in the coating decomposes for the original position of solid pyrolysate produces the cavity, and the coating forms porous structure promptly, does benefit to moisture and volatilizes, reduces the long-term erosion of water to the coating, guarantees the stability of coating.
And the color of the solid pyrolysate is changed after the solid pyrolysate is decomposed, for example, basic copper carbonate is green, and the copper oxide generated by the decomposition is black, so that the pattern can be drawn on the coating, and the solid pyrolysate with different pyrolysis temperatures is added, and the pyrolysis treatment is carried out at different temperatures, so that the color pattern can be drawn.
Example six:
according to the using method of the paint in the fifth embodiment, the paints generated in the first to third embodiments are tested, and the results are shown in the following table:
note: in the table above, the mass loss of abrasion resistance is the maximum of the three examples, and the other data are averaged.
From the above table it follows that: the prepared coating has excellent mechanical strength property and bonding strength property and good wear resistance, and the coating contains organic water-based acrylic emulsion, so that the coating has good flexibility, and cannot wrinkle, peel or fall off and discolor when being soaked in water. Although the coating contains the solid pyrolysate which is decomposed to generate the cavity for water volatilization, the size of the cavity is related to the granularity of the solid pyrolysate, and the size of the cavity is controlled by controlling the granularity of the solid pyrolysate, so that the integral coating has a certain water seepage prevention effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A nano-reinforced ultrathin high-hardness organic-inorganic composite coating comprises a liquid material and a powder material, and is characterized by being prepared from the following components in parts by weight:
liquid material: 1-50 parts of acrylic emulsion, 0.1-0.7 part of defoaming agent, 0.1-0.7 part of antibacterial agent and 1-50 parts of water;
powder lot: 20-60 parts of 52.5 white cement, 40-80 parts of 40-325-mesh quartz sand, 1-10 parts of heavy calcium carbonate, 1-10 parts of talcum powder, 1-5 parts of white aluminate cement, 0.1-0.5 part of water reducing agent, 0.1-1.0 part of water retaining agent, 0.1-1.0 part of starch ether, 0.1-0.5 part of defoaming agent, 0.1-0.5 part of fumed silica, 0.1-0.5 part of fumed aluminum oxide and 5-15 parts of solid pyrolysate;
the mass ratio of the liquid material to the powder material is 0.20-0.50: 1.
2. The nano-reinforced ultrathin high-hardness organic-inorganic composite coating according to claim 1, characterized in that: the antibacterial agent is 1, 2-benzisothiazolin-3-one/2-methyl-4 isothiazoline.
3. The nano-reinforced ultrathin high-hardness organic-inorganic composite coating according to claim 1, characterized in that: the preferred selection of the quartz sand is that the whiteness is more than or equal to 90, the content of silicon dioxide is more than or equal to 99%, and the mesh number is one or more of 40 meshes, 80-120 meshes, 120-180 meshes and 325 meshes.
4. The nano-reinforced ultrathin high-hardness organic-inorganic composite coating according to claim 1, characterized in that: the mesh number of the heavy calcium carbonate is 325 meshes, the mesh number of the talcum powder is 400 meshes, and the mesh number of the solid pyrolysis product is 500 meshes.
5. The nano-reinforced ultrathin high-hardness organic-inorganic composite coating according to claim 1, characterized in that: the water reducing agent is a polycarboxylic acid water reducing agent, and the starch ether is modified potato starch ether.
6. The nano-reinforced ultrathin high-hardness organic-inorganic composite coating according to claim 1, characterized in that: the water-retaining agent is one or two of hydroxypropyl methyl cellulose ether and hydroxyethyl methyl cellulose ether, and the defoaming agent is one or more of mineral oil and polyethylene glycol, vegetable oil and polyethylene glycol or polysiloxane.
7. The nano-reinforced ultrathin high-hardness organic-inorganic composite coating according to claim 1, characterized in that: the solid pyrolysate comprises one or more compounds, and the solid pyrolysate comprises basic copper carbonate, silicic acid colloid, magnesium hydroxide and ferric hydroxide.
8. The method for preparing the nano-reinforced ultrathin high-hardness organic-inorganic composite coating according to any one of claims 1 to 7 is characterized by comprising the following steps of:
the method comprises the following steps: adding the liquid materials into a mixing kettle according to the proportion, and stirring for 30min to obtain a liquid mixed raw material;
step two: putting the powder into a mixer according to the proportion, and fully stirring to obtain a solid mixed raw material;
step three: and mixing the liquid mixed raw materials and the solid mixed raw materials in proportion to obtain the coating.
9. The method for using the coating, which is produced by the method for preparing the nano-reinforced ultrathin high-hardness organic-inorganic composite coating according to claim 8, is characterized in that the coating is coated on a building wall by using a coating device, the coating is dried, the coating is heated, and the solid pyrolysate is pyrolyzed.
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Cited By (1)
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| CN115584170A (en) * | 2022-10-10 | 2023-01-10 | 河南兴安新型建筑材料有限公司 | Wall micro-cement with natural pore artistic effect and preparation method thereof |
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