CN112759954A - Environment-friendly diatom ooze exterior wall coating and preparation method thereof - Google Patents
Environment-friendly diatom ooze exterior wall coating and preparation method thereof Download PDFInfo
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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
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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
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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
- 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
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/65—Additives macromolecular
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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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
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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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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Abstract
The invention discloses an environment-friendly diatom ooze exterior wall coating, which comprises diatomite powder, nano paint, bentonite, a gel, an antioxidant and a defoaming agent, wherein the nano paint is novel emulsion paint, has the characteristics of environmental protection, no toxicity, mildew prevention, scrub resistance and chemical corrosion resistance, has extremely strong cohesiveness and excellent high weather resistance, is suitable for exterior wall structures, is added with a large amount of bentonite, contains a small amount of illite, kaolinite, halloysite, chlorite, zeolite, quartz, feldspar, calcite and the like besides clay rock, increases the plasticity of the coating, and is added with the antioxidant to enhance the antioxidant capacity of the coating when the coating is used on an exterior wall, ensure the stability of the diatom ooze exterior wall coating and reduce the oxidation caused by the influence of external weathering after the exterior wall coating is coated.
Description
Technical Field
The invention belongs to the field of production of diatom ooze coatings, and particularly relates to an environment-friendly diatom ooze exterior wall coating and a preparation method thereof.
Background
The diatom coating comprises diatom paint and diatom mud. The diatomite paint is prepared by adding diatomite into conventional emulsion paint or oily paint in a certain proportion, so that the diatomite paint has more functions of regulating humidity, adsorbing harmful gases, improving adhesion and abrasion resistance and the like. The diatom ooze is a coating prepared by taking diatomite as a main raw material and adding a plurality of auxiliary agents.
The diatom ooze is a new functional environment-friendly wall surface decoration material in recent years in China, and has multiple functions of humidity adjustment, air purification, fire prevention, flame retardance, sound absorption, noise reduction, heat preservation, heat insulation, vision protection, wall surface self-cleaning and the like. Although the diatom ooze has the advantages of natural environment protection, excellent performance and the like, diatom ooze products are defective, such as poor oxidation resistance, poor plasticity and the like when used for external walls.
Patent with application number CN201710328184.8 discloses a diatom ooze coating and a preparation method thereof, wherein the diatom ooze coating comprises: modified diatomite powder, a gel material, a dispersion medium, redispersible latex powder, an inert filler and deionized water; the preparation method comprises the steps of preparing the diatomite powder modified by the hollow glass beads by adopting an in-situ precipitation method, adding the gel material, the dispersion medium, the redispersible latex powder and the inert filler into the modified diatomite powder, uniformly mixing, adding water, and adjusting into paste to obtain the diatom ooze coating.
The diatomite powder is modified to be prepared into the diatomite powder modified by the hollow glass beads, so that the hardness of the diatom ooze coating is increased, but the problem that the diatom ooze coating is easy to oxidize after long-term use is not solved.
Disclosure of Invention
Aiming at the problems, the invention adopts the following technical scheme:
the environment-friendly diatom ooze exterior wall coating comprises the following components in parts by weight:
30-50 parts of diatomite powder, namely,
20-30 parts of nano paint,
10-15 parts of bentonite, namely 10-15 parts of bentonite,
5-10 parts of a gelling agent,
2-3 parts of an antioxidant, namely,
0.5 to 1 portion of defoaming agent,
sufficient water is added.
Preferably, the nano paint is prepared by compounding 5-10 parts of titanium dioxide dispersing agent, 8-12 parts of nano quartz powder, 15-20 parts of acrylic emulsion, 2-5 parts of film forming auxiliary agent, 2-3 parts of antifreezing agent and 20-30 parts of water.
Preferably, the titanium dioxide dispersant is made of titanium dioxide, a dispersant and water.
Preferably, the particle size of the diatomite powder is required to be 100-150 meshes.
Preferably, the particle size of the bentonite is 200-300 meshes.
Preferably, the gelling agent is a mixture of at least two of sodium carboxymethylcellulose, agar, xanthan gum, carrageenan or pectin.
A preparation method of an environment-friendly diatom ooze exterior wall coating comprises the following steps:
1) preparing nano paint:
a. pouring the corresponding amount of titanium dioxide dispersant, nano quartz powder, acrylic emulsion and water into a reaction kettle, heating to 60 ℃, and continuously stirring for 30 min;
b. heating the reaction kettle to 70-80 ℃, adding a corresponding amount of film forming auxiliary agent and antifreezing agent, continuously stirring for 60min, adjusting the pH value, and naturally cooling to obtain nano paint;
2) sieving: sieving diatomite powder and bentonite in corresponding amount according to corresponding particle size requirements, and mixing and stirring uniformly;
3) mixing liquid:
a. mixing the nano paint, the diatomite powder, the bentonite mixture and part of water, heating to 50-60 ℃, and continuously stirring for 30-40min to obtain a mixed solution;
b. adding a corresponding amount of gelling agent into the mixed solution, keeping the temperature to 50 ℃, and stirring for 10 min;
c. continuously adding antioxidant and defoaming agent in corresponding amount, and continuously stirring for 40-60min to obtain semi-finished product;
d. and adding the balance of water into the semi-finished product, stirring, adjusting to be pasty, and naturally cooling to room temperature to obtain the diatom ooze coating.
Preferably, the pH value adjusted in the step 1) is 7.2-7.5.
Preferably, the rotating speed of the reaction kettle in the step 1) is required to be 1500-.
Preferably, the room temperature in the step 3) is 20-24 ℃.
Compared with the prior art, the invention has the outstanding characteristics and beneficial effects that:
by adopting the technical scheme of the invention, the following beneficial effects are obtained:
1. the nano paint is added, is a novel emulsion paint, has the characteristics of environmental protection, no toxicity, mildew resistance, scrubbing resistance and chemical corrosion resistance, has extremely strong cohesiveness and excellent high weather resistance, and is suitable for an outer wall structure;
2. according to the invention, a large amount of bentonite is added, and besides clay rocks, the bentonite also contains a small amount of illite, kaolinite, halloysite, chlorite, zeolite, quartz, feldspar, calcite and the like, so that the plasticity of the coating is increased;
3. according to the invention, the antioxidant is added into the diatom ooze, so that the antioxidant capacity of the coating when the coating is used on an outer wall is enhanced, the stability of the diatom ooze outer wall coating is ensured, and the oxidation of the outer wall coating caused by the influence of external weathering after the outer wall coating is coated is reduced.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following embodiments are provided to further illustrate the present invention.
The environment-friendly diatom ooze exterior wall coating comprises the following components in parts by weight:
30-50 parts of diatomite powder, namely,
20-30 parts of nano paint,
10-15 parts of bentonite, namely 10-15 parts of bentonite,
5-10 parts of a gelling agent,
2-3 parts of an antioxidant, namely,
0.5 to 1 portion of defoaming agent,
sufficient water is added.
The nano paint is compounded by 5-10 parts of titanium dioxide dispersing agent, 8-12 parts of nano quartz powder, 15-20 parts of acrylic emulsion, 2-5 parts of film forming auxiliary agent, 2-3 parts of antifreezing agent and 20-30 parts of water.
The titanium dioxide dispersing agent is prepared from titanium dioxide, a dispersing agent and water; the particle size of the diatomite powder is required to be 100-150 meshes; the particle size of the bentonite is 200-300 meshes; the gelling agent is a mixture of at least two of sodium carboxymethylcellulose, agar, xanthan gum, carrageenan or pectin.
A preparation method of an environment-friendly diatom ooze exterior wall coating comprises the following steps:
1) preparing nano paint:
a. pouring the corresponding amount of titanium dioxide dispersant, nano quartz powder, acrylic emulsion and water into a reaction kettle, heating to 60 ℃, and continuously stirring for 30 min;
b. heating the reaction kettle to 70-80 ℃, adding a corresponding amount of film forming auxiliary agent and antifreezing agent, continuously stirring for 60min, adjusting the pH value, and naturally cooling to obtain nano paint;
2) sieving: sieving diatomite powder and bentonite in corresponding amount according to corresponding particle size requirements, and mixing and stirring uniformly;
3) mixing liquid:
a. mixing the nano paint, the diatomite powder, the bentonite mixture and part of water, heating to 50-60 ℃, and continuously stirring for 30-40min to obtain a mixed solution;
b. adding a corresponding amount of gelling agent into the mixed solution, keeping the temperature to 50 ℃, and stirring for 10 min;
c. continuously adding antioxidant and defoaming agent in corresponding amount, and continuously stirring for 40-60min to obtain semi-finished product;
d. and adding the balance of water into the semi-finished product, stirring, adjusting to be pasty, and naturally cooling to room temperature to obtain the diatom ooze coating.
The PH value adjusted in the step 1) is 7.2-7.5; the rotating speed requirement of the reaction kettle in the step 1) is 1500-; the room temperature in the step 3) is 20-24 ℃.
Example 1
The preparation method comprises the following components in parts by weight:
40 parts of diatomite powder, namely 40 parts of diatomite powder,
25 parts of nano paint, namely 25 parts of nano paint,
12.5 parts of bentonite, namely 12.5 parts of bentonite,
7.5 parts of a gelling agent,
2 parts of an antioxidant, namely 2 parts of,
0.5 part of defoaming agent.
Example 2
The preparation method comprises the following components in parts by weight:
40 parts of diatomite powder, namely 40 parts of diatomite powder,
40 parts of nano paint, namely 40 parts of nano paint,
12.5 parts of bentonite, namely 12.5 parts of bentonite,
7.5 parts of a gelling agent,
2 parts of an antioxidant, namely 2 parts of,
0.5 part of defoaming agent.
Example 3
The preparation method comprises the following components in parts by weight:
40 parts of diatomite powder, namely 40 parts of diatomite powder,
0 part of nano paint, namely 0 part of nano paint,
12.5 parts of bentonite, namely 12.5 parts of bentonite,
7.5 parts of a gelling agent,
2 parts of an antioxidant, namely 2 parts of,
0.5 part of defoaming agent.
The coatings prepared according to the above 3 example formulations, after performance testing, gave table 1, as follows:
in conclusion, the nano paint is added in the formula amount, so that the air drying and film forming of the surface of the coating are facilitated, and the surface bonding strength is increased.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The environment-friendly diatom ooze exterior wall coating is characterized by comprising the following components in parts by weight:
30-50 parts of diatomite powder, namely,
20-30 parts of nano paint,
10-15 parts of bentonite, namely 10-15 parts of bentonite,
5-10 parts of a gelling agent,
2-3 parts of an antioxidant, namely,
0.5 to 1 portion of defoaming agent,
sufficient water is added.
2. The diatom ooze exterior wall coating of claim 1, wherein: the nano paint is compounded by 5-10 parts of titanium dioxide dispersing agent, 8-12 parts of nano quartz powder, 15-20 parts of acrylic emulsion, 2-5 parts of film forming auxiliary agent, 2-3 parts of antifreezing agent and 20-30 parts of water.
3. The diatom ooze exterior wall coating of claim 2, wherein: the titanium dioxide dispersant is prepared from titanium dioxide, a dispersant and water.
4. The diatom ooze exterior wall coating of claim 1, wherein: the particle size of the diatomite powder is required to be 100-150 meshes.
5. The diatom ooze exterior wall coating of claim 1, wherein: the particle size of the bentonite is required to be 200-300 meshes.
6. The diatom ooze exterior wall coating of claim 1, wherein: the gelling agent is a mixture of at least two of sodium carboxymethylcellulose, agar, xanthan gum, carrageenan or pectin.
7. The preparation method of the environment-friendly diatom ooze exterior wall coating is characterized by comprising the following steps of:
1) preparing nano paint:
a. pouring the corresponding amount of titanium dioxide dispersant, nano quartz powder, acrylic emulsion and water into a reaction kettle, heating to 60 ℃, and continuously stirring for 30 min;
b. heating the reaction kettle to 70-80 ℃, adding a corresponding amount of film forming auxiliary agent and antifreezing agent, continuously stirring for 60min, adjusting the pH value, and naturally cooling to obtain nano paint;
2) sieving: sieving diatomite powder and bentonite in corresponding amount according to corresponding particle size requirements, and mixing and stirring uniformly;
3) mixing liquid:
a. mixing the nano paint, the diatomite powder, the bentonite mixture and part of water, heating to 50-60 ℃, and continuously stirring for 30-40min to obtain a mixed solution;
b. adding a corresponding amount of gelling agent into the mixed solution, keeping the temperature to 50 ℃, and stirring for 10 min;
c. continuously adding antioxidant and defoaming agent in corresponding amount, and continuously stirring for 40-60min to obtain semi-finished product;
d. and adding the balance of water into the semi-finished product, stirring, adjusting to be pasty, and naturally cooling to room temperature to obtain the diatom ooze coating.
8. The method of claim 7, wherein: the pH value adjusted in the step 1) is 7.2-7.5.
9. The method of claim 7, wherein: the rotating speed requirement of the reaction kettle in the step 1) is 1500-.
10. The method of claim 7, wherein: the room temperature in the step 3) is 20-24 ℃.
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Cited By (1)
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| CN115340354A (en) * | 2022-08-26 | 2022-11-15 | 白长明 | Diatom ooze with sterilization effect and preparation method |
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| CN115340354B (en) * | 2022-08-26 | 2024-01-05 | 白长明 | Diatom ooze with sterilization effect and preparation method thereof |
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Application publication date: 20210507 |