CN111187544A - Odorless environment-friendly coating - Google Patents
Odorless environment-friendly coating Download PDFInfo
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- CN111187544A CN111187544A CN201911305669.0A CN201911305669A CN111187544A CN 111187544 A CN111187544 A CN 111187544A CN 201911305669 A CN201911305669 A CN 201911305669A CN 111187544 A CN111187544 A CN 111187544A
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- 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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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- 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
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- C08K2003/2241—Titanium dioxide
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Abstract
The invention discloses a smell-free environment-friendly coating which comprises the following raw materials in parts by weight: 20-30 parts of pure acrylic emulsion, 3-5 parts of titanium dioxide, 2-4 parts of polyurethane, 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder, 2.5-3.5 parts of silica aerogel, 4.5-5.5 parts of hollow glass beads, 5-7 parts of calcium silicate, 1.2-1.6 parts of thickening agent, 1.4-1.8 parts of defoaming agent and sufficient amount of ethanol, wherein the defoaming agent is polydimethylsiloxane. The odor-free environment-friendly coating utilizes the diatomite porosity of more than 85 percent, large specific surface area and strong water absorption capacity, has the functions of adjusting humidity and adsorbing toxic gases, and utilizes the bamboo charcoal powder with super functions of adsorption, humidity adjustment, deodorization, insect prevention and the like to adsorb the toxic gases, and the bamboo charcoal powder is matched with the anion composite additive to release anions, so that the purposes of purifying air, inhibiting bacteria and resisting bacteria are achieved by the processes of coating, settling, neutralizing and the like on the harmful gases, bacteria and microorganisms.
Description
Technical Field
The invention relates to the technical field of environment-friendly coatings, in particular to an odorless environment-friendly coating.
Background
The coating is traditionally named as paint in China. The coating is a continuous film which is coated on the surface of a protected or decorated object and can form firm adhesion with the object to be coated, and is a viscous liquid which is prepared by taking resin, oil or emulsion as a main material, adding or not adding pigment and filler, adding corresponding auxiliary agents and using organic solvent or water. The book of coating technology which is relatively authoritative in the Chinese coating world is defined as follows: the paint is a material which can be coated on the surface of an object by different construction processes to form a continuous solid film with firm adhesion and certain strength. The film thus formed is generally called a coating film, also called a paint film or a coating.
The existing coating comprises a liquid coating and a powder coating, wherein the liquid coating, especially a film forming agent, usually contains a large amount of organic matters, so that the environment is polluted, the human health is seriously threatened, especially a large amount of formaldehyde is a carcinogenic important factor, the coating contains more toxic and harmful substances, the performances of environmental protection, air purification and the like are poor, and the high-temperature resistance of the coating is poor.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a smell-free environment-friendly coating, which solves the problems that the existing coating usually contains a large amount of organic matters, particularly a large amount of formaldehyde, more toxic and harmful substances in the coating, poor performances of environment protection, air purification and the like, and poor high-temperature resistance of the coating.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an odorless environment-friendly coating comprises the following raw materials in parts by weight: 20-30 parts of pure acrylic emulsion, 3-5 parts of titanium dioxide, 2-4 parts of polyurethane, 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder, 2.5-3.5 parts of silica aerogel, 4.5-5.5 parts of hollow glass beads, 5-7 parts of calcium silicate, 1.2-1.6 parts of thickening agent, 1.4-1.8 parts of defoaming agent and sufficient amount of ethanol.
Preferably, the raw materials comprise the following components in parts by weight: 20 parts of pure acrylic emulsion, 3 parts of titanium dioxide, 2 parts of polyurethane, 1 part of negative ion composite additive, 5 parts of diatomite, 4 parts of bamboo charcoal powder, 2.5 parts of silicon dioxide aerogel, 4.5 parts of hollow glass beads, 5 parts of calcium silicate, 1.2 parts of thickening agent, 1.4 parts of defoaming agent and enough ethanol.
Preferably, the raw materials comprise the following components in parts by weight: 25 parts of pure acrylic emulsion, 4 parts of titanium dioxide, 3 parts of polyurethane, 2 parts of negative ion composite additive, 6 parts of diatomite, 5 parts of bamboo charcoal powder, 3 parts of silicon dioxide aerogel, 5 parts of hollow glass beads, 6 parts of calcium silicate, 1.4 parts of thickening agent, 1.6 parts of defoaming agent and enough ethanol.
Preferably, the raw materials comprise the following components in parts by weight: 30 parts of pure acrylic emulsion, 5 parts of titanium dioxide, 4 parts of polyurethane, 3 parts of negative ion composite additive, 7 parts of diatomite, 6 parts of bamboo charcoal powder, 3.5 parts of silicon dioxide aerogel, 5.5 parts of hollow glass beads, 7 parts of calcium silicate, 1.6 parts of thickening agent, 1.8 parts of defoaming agent and enough ethanol.
Preferably, the negative ion composite additive is a shell-core structure particle formed by coating electropositive nano tourmaline with tetraethoxysilane, wherein the shell layer is a tetraethoxysilane film layer, and the core layer is an electropositive nano tourmaline.
Preferably, the defoaming agent is polydimethylsiloxane.
Preferably, the thickener is hydroxyethyl cellulose or montmorillonite clay.
Preferably, the SiO2 aerogel is powder with the density of 0.1-0.2 g/cm3, the porosity of 82-87% and the specific surface area of 800-860 m2/g, and is selected from a sieving material with the mesh of 1000-1500.
Preferably, the preparation method of the odorless environment-friendly coating specifically comprises the following steps:
s1, weighing raw materials: weighing 20-30 parts of pure acrylic emulsion by weight, placing the pure acrylic emulsion in a stirring kettle, sequentially adding 3-5 parts of titanium dioxide and 2-4 parts of polyurethane, stirring by using a stirring device, and stirring at a rotating speed of 500-700 rpm;
s2, blending raw materials: weighing 1.2-1.6 parts of thickening agent and 1.4-1.8 parts of defoaming agent according to parts by weight, adding the thickening agent and 1.4-1.8 parts of defoaming agent into a dispersion cylinder, mixing with sufficient ethanol, sequentially adding 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder and 2.5-3.5 parts of silicon dioxide aerogel, stirring at a rotating speed of 150-200 revolutions per minute, and waiting for a colloidal solution to be formed;
s3, grinding raw materials: weighing 4.5-5.5 parts of hollow glass beads and 5-7 parts of calcium silicate in parts by weight, adding the hollow glass beads and the calcium silicate into grinding equipment for grinding, and taking out mixed grinding powder for later use after the grinding is carried out to obtain powder;
s4, mixing the raw materials: and pouring the mixed grinding powder of S3 and the colloidal solution of S2 into a stirring kettle, increasing the rotating speed of the stirring kettle to 800-1000 r/min, stirring for 30-40 min, and waiting until the mixed solution is uniformly stirred and no bubbles are generated.
(III) advantageous effects
The invention provides an odorless environment-friendly coating. Compared with the prior art, the method has the following beneficial effects:
(1) the odor-free environment-friendly coating comprises the following raw materials in parts by weight: 20-30 parts of pure acrylic emulsion, 3-5 parts of titanium dioxide, 2-4 parts of polyurethane, 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder, 2.5-3.5 parts of silicon dioxide aerogel, 4.5-5.5 parts of hollow glass beads, 5-7 parts of calcium silicate, 1.2-1.6 parts of thickening agent, 1.4-1.8 parts of defoaming agent and ethanol in sufficient quantity, S1, raw material weighing: weighing 20-30 parts of pure acrylic emulsion by weight, placing the pure acrylic emulsion in a stirring kettle, sequentially adding 3-5 parts of titanium dioxide and 2-4 parts of polyurethane, stirring by using a stirring device, and stirring at a rotating speed of 500-700 rpm; s2, blending raw materials: weighing 1.2-1.6 parts of thickening agent and 1.4-1.8 parts of defoaming agent according to parts by weight, adding the materials into a dispersion cylinder, mixing the materials with sufficient ethanol, sequentially adding 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder and 2.5-3.5 parts of silica aerogel, and stirring at a rotating speed of 150-200 revolutions per minute to wait for forming a colloidal solution; s4, mixing raw materials: pouring the mixed ground powder of S3 and the colloidal solution of S2 into a stirring kettle, increasing the rotation speed of the stirring kettle to 800-1000 r/min, stirring for 30-40 min, waiting until the mixed solution is uniformly stirred and no bubble is generated, adsorbing the toxic gas by utilizing the diatomite porosity of more than 85 percent, large specific surface area and strong water absorption capacity, and having the functions of regulating humidity and adsorbing the toxic gas, and utilizing the bamboo charcoal powder with super strong adsorption, humidity regulation, deodorization, insect prevention and other functions to release negative ions by matching with a negative ion composite additive, so that the purposes of purifying air, inhibiting bacteria and resisting bacteria are achieved by coating, settling, neutralizing and other processes on the harmful gas, bacteria and microorganisms.
(2) The odor-free environment-friendly coating comprises the following raw materials in parts by weight: 20-30 parts of pure acrylic emulsion, 3-5 parts of titanium dioxide, 2-4 parts of polyurethane, 4.5-5.5 parts of hollow glass beads, 5-7 parts of calcium silicate, 1.2-1.6 parts of thickening agent, 1.4-1.8 parts of defoaming agent and sufficient ethanol, S3, grinding raw materials: weighing 4.5-5.5 parts of hollow glass beads and 5-7 parts of calcium silicate in parts by weight, adding the hollow glass beads and the calcium silicate into grinding equipment for grinding, and taking out mixed grinding powder for later use after the grinding is carried out to obtain powder; s4, mixing the raw materials: and pouring the mixed grinding powder of S3 and the colloidal solution in S2 into a stirring kettle, increasing the rotating speed of the stirring kettle to 800-1000 r/min, stirring for 30-40 min, and waiting until the mixed solution is uniformly stirred and no bubble is generated, wherein the hollow glass beads and calcium silicate are added into the coating, and the prepared coating has poor heat conductivity and good fireproof performance by utilizing the characteristics of high melting point, small heat conductivity coefficient and the like of the hollow glass beads and the calcium silicate materials.
(3) The odor-free environment-friendly coating comprises the following raw materials in parts by weight: 20-30 parts of pure acrylic emulsion, 3-5 parts of titanium dioxide, 2-4 parts of polyurethane, 2.5-3.5 parts of silicon dioxide aerogel, 1.2-1.6 parts of thickening agent, 1.4-1.8 parts of defoaming agent and sufficient ethanol, and S2, blending the raw materials: weighing 1.2-1.6 parts of thickening agent and 1.4-1.8 parts of defoaming agent according to parts by weight, adding the thickening agent and 1.4-1.8 parts of defoaming agent into a dispersion cylinder, mixing with sufficient ethanol, sequentially adding 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder and 2.5-3.5 parts of silicon dioxide aerogel, stirring at a rotating speed of 150-200 rpm, waiting for forming a colloidal solution, and organically combining pure acrylic emulsion, polyurethane and SiO2 aerogel to endow the coating with multiple functions of antibiosis, sterilization, air purification, odor removal, sound resistance, sound insulation, heat insulation and heat preservation and the like.
Drawings
FIG. 1 is a graph comparing the formaldehyde content in the market according to the invention;
FIG. 2 is a graph comparing the formaldehyde content of examples of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
Referring to fig. 1-2, an embodiment of the present invention provides a technical solution: a preparation method of an odorless environment-friendly coating specifically comprises the following embodiments:
example 1
An odorless environment-friendly coating comprises the following raw materials in parts by weight: 20 parts of pure acrylic emulsion, 3 parts of titanium dioxide, 2 parts of polyurethane, 1 part of negative ion composite additive, 5 parts of diatomite, 4 parts of bamboo charcoal powder, 2.5 parts of silicon dioxide aerogel, 4.5 parts of hollow glass beads, 5 parts of calcium silicate, 1.2 parts of thickening agent, 1.4 parts of defoaming agent and enough ethanol.
The preparation method of the odorless environment-friendly coating specifically comprises the following steps:
s1, weighing raw materials: weighing 20-30 parts of pure acrylic emulsion by weight, placing the pure acrylic emulsion in a stirring kettle, sequentially adding 3-5 parts of titanium dioxide and 2-4 parts of polyurethane, stirring by using a stirring device, and stirring at a rotating speed of 500-700 rpm;
s2, blending raw materials: weighing 1.2-1.6 parts of thickening agent and 1.4-1.8 parts of defoaming agent according to parts by weight, adding the thickening agent and 1.4-1.8 parts of defoaming agent into a dispersion cylinder, mixing with sufficient ethanol, sequentially adding 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder and 2.5-3.5 parts of silicon dioxide aerogel, stirring at a rotating speed of 150-200 r/min, waiting for formation of colloidal solution, wherein the negative ion composite additive is a shell-core structure particle formed by coating electro-activated nano tourmaline with ethyl orthosilicate, a shell layer is an ethyl orthosilicate film layer, a core layer is electro-activated nano tourmaline, the defoaming agent is polydimethylsiloxane, the thickening agent is hydroxyethyl cellulose or montmorillonite clay, the SiO2 aerogel is powder with a density of 0.1-0.2 g/cm3, a porosity of 82-87% and a specific surface area of 800-860 m2/g, sieving materials selected from 1000-1500 meshes;
s3, grinding raw materials: weighing 4.5-5.5 parts of hollow glass beads and 5-7 parts of calcium silicate in parts by weight, adding the hollow glass beads and the calcium silicate into grinding equipment for grinding, and taking out mixed grinding powder for later use after the grinding is carried out to obtain powder;
s4, mixing the raw materials: and pouring the mixed grinding powder of S3 and the colloidal solution of S2 into a stirring kettle, increasing the rotating speed of the stirring kettle to 800-1000 r/min, stirring for 30-40 min, and waiting until the mixed solution is uniformly stirred and no bubbles are generated.
Example 2
The raw materials comprise by weight: 25 parts of pure acrylic emulsion, 4 parts of titanium dioxide, 3 parts of polyurethane, 2 parts of negative ion composite additive, 6 parts of diatomite, 5 parts of bamboo charcoal powder, 3 parts of silicon dioxide aerogel, 5 parts of hollow glass beads, 6 parts of calcium silicate, 1.4 parts of thickening agent, 1.6 parts of defoaming agent and enough ethanol.
The preparation method of the odorless environment-friendly coating specifically comprises the following steps:
s1, weighing raw materials: weighing 20-30 parts of pure acrylic emulsion by weight, placing the pure acrylic emulsion in a stirring kettle, sequentially adding 3-5 parts of titanium dioxide and 2-4 parts of polyurethane, stirring by using a stirring device, and stirring at a rotating speed of 500-700 rpm;
s2, blending raw materials: weighing 1.2-1.6 parts of thickening agent and 1.4-1.8 parts of defoaming agent according to parts by weight, adding the thickening agent and 1.4-1.8 parts of defoaming agent into a dispersion cylinder, mixing with sufficient ethanol, sequentially adding 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder and 2.5-3.5 parts of silicon dioxide aerogel, stirring at a rotating speed of 150-200 r/min, waiting for formation of colloidal solution, wherein the negative ion composite additive is a shell-core structure particle formed by coating electro-activated nano tourmaline with ethyl orthosilicate, a shell layer is an ethyl orthosilicate film layer, a core layer is electro-activated nano tourmaline, the defoaming agent is polydimethylsiloxane, the thickening agent is hydroxyethyl cellulose or montmorillonite clay, the SiO2 aerogel is powder with a density of 0.1-0.2 g/cm3, a porosity of 82-87% and a specific surface area of 800-860 m2/g, sieving materials selected from 1000-1500 meshes;
s3, grinding raw materials: weighing 4.5-5.5 parts of hollow glass beads and 5-7 parts of calcium silicate in parts by weight, adding the hollow glass beads and the calcium silicate into grinding equipment for grinding, and taking out mixed grinding powder for later use after the grinding is carried out to obtain powder;
s4, mixing the raw materials: and pouring the mixed grinding powder of S3 and the colloidal solution of S2 into a stirring kettle, increasing the rotating speed of the stirring kettle to 800-1000 r/min, stirring for 30-40 min, and waiting until the mixed solution is uniformly stirred and no bubbles are generated.
Example 3
The raw materials comprise by weight: 30 parts of pure acrylic emulsion, 5 parts of titanium dioxide, 4 parts of polyurethane, 3 parts of negative ion composite additive, 7 parts of diatomite, 6 parts of bamboo charcoal powder, 3.5 parts of silicon dioxide aerogel, 5.5 parts of hollow glass beads, 7 parts of calcium silicate, 1.6 parts of thickening agent, 1.8 parts of defoaming agent and enough ethanol.
The preparation method of the odorless environment-friendly coating specifically comprises the following steps:
s1, weighing raw materials: weighing 20-30 parts of pure acrylic emulsion by weight, placing the pure acrylic emulsion in a stirring kettle, sequentially adding 3-5 parts of titanium dioxide and 2-4 parts of polyurethane, stirring by using a stirring device, and stirring at a rotating speed of 500-700 rpm;
s2, blending raw materials: weighing 1.2-1.6 parts of thickening agent and 1.4-1.8 parts of defoaming agent according to parts by weight, adding the thickening agent and 1.4-1.8 parts of defoaming agent into a dispersion cylinder, mixing with sufficient ethanol, sequentially adding 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder and 2.5-3.5 parts of silicon dioxide aerogel, stirring at a rotating speed of 150-200 r/min, waiting for formation of colloidal solution, wherein the negative ion composite additive is a shell-core structure particle formed by coating electro-activated nano tourmaline with ethyl orthosilicate, a shell layer is an ethyl orthosilicate film layer, a core layer is electro-activated nano tourmaline, the defoaming agent is polydimethylsiloxane, the thickening agent is hydroxyethyl cellulose or montmorillonite clay, the SiO2 aerogel is powder with a density of 0.1-0.2 g/cm3, a porosity of 82-87% and a specific surface area of 800-860 m2/g, sieving materials selected from 1000-1500 meshes;
s3, grinding raw materials: weighing 4.5-5.5 parts of hollow glass beads and 5-7 parts of calcium silicate in parts by weight, adding the hollow glass beads and the calcium silicate into grinding equipment for grinding, and taking out mixed grinding powder for later use after the grinding is carried out to obtain powder;
s4, mixing the raw materials: and pouring the mixed grinding powder of S3 and the colloidal solution of S2 into a stirring kettle, increasing the rotating speed of the stirring kettle to 800-1000 r/min, stirring for 30-40 min, and waiting until the mixed solution is uniformly stirred and no bubbles are generated.
Comparative experiment
A certain manufacturer of the environment-friendly coating respectively selects the environment-friendly coatings prepared in the embodiments 1 to 3 and the market environment-friendly coatings to perform a formaldehyde content comparison experiment, as can be seen from fig. 1, the formaldehyde content of the environment-friendly coatings prepared in the embodiments 1 to 3 is 0.06mg/m3, and the formaldehyde content of the market environment-friendly coatings is 0.35mg/m3, the formaldehyde content of the environment-friendly coatings prepared by the invention is far lower than that of the market environment-friendly coatings, as can be seen from fig. 2, the formaldehyde content of the environment-friendly coatings prepared in the embodiment 2 is the lowest, and is the optimal scheme; the other two are acceptable.
In conclusion, the diatomite has the porosity of more than 85 percent, large specific surface area and strong water absorption capacity, has the functions of adjusting humidity and adsorbing toxic gas, and the bamboo charcoal powder has the super-strong functions of adsorbing, humidifying, deodorizing, preventing insects and the like, adsorbs the toxic gas, releases negative ions by matching with a negative ion composite additive, and further achieves the purposes of purifying air, inhibiting bacteria and resisting bacteria by coating, settling, neutralizing and other processes on the harmful gas, bacteria and microorganisms.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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. An odorless environment-friendly coating is characterized in that: the raw materials comprise by weight: 20-30 parts of pure acrylic emulsion, 3-5 parts of titanium dioxide, 2-4 parts of polyurethane, 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder, 2.5-3.5 parts of silica aerogel, 4.5-5.5 parts of hollow glass beads, 5-7 parts of calcium silicate, 1.2-1.6 parts of thickening agent, 1.4-1.8 parts of defoaming agent and sufficient amount of ethanol.
2. The odorless environmental friendly coating as recited in claim 1, wherein: the raw materials comprise by weight: 20 parts of pure acrylic emulsion, 3 parts of titanium dioxide, 2 parts of polyurethane, 1 part of negative ion composite additive, 5 parts of diatomite, 4 parts of bamboo charcoal powder, 2.5 parts of silicon dioxide aerogel, 4.5 parts of hollow glass beads, 5 parts of calcium silicate, 1.2 parts of thickening agent, 1.4 parts of defoaming agent and enough ethanol.
3. The odorless environmental friendly coating as recited in claim 1, wherein: the raw materials comprise by weight: 25 parts of pure acrylic emulsion, 4 parts of titanium dioxide, 3 parts of polyurethane, 2 parts of negative ion composite additive, 6 parts of diatomite, 5 parts of bamboo charcoal powder, 3 parts of silicon dioxide aerogel, 5 parts of hollow glass beads, 6 parts of calcium silicate, 1.4 parts of thickening agent, 1.6 parts of defoaming agent and enough ethanol.
4. The odorless environmental friendly coating as recited in claim 1, wherein: the raw materials comprise by weight: 30 parts of pure acrylic emulsion, 5 parts of titanium dioxide, 4 parts of polyurethane, 3 parts of negative ion composite additive, 7 parts of diatomite, 6 parts of bamboo charcoal powder, 3.5 parts of silicon dioxide aerogel, 5.5 parts of hollow glass beads, 7 parts of calcium silicate, 1.6 parts of thickening agent, 1.8 parts of defoaming agent and enough ethanol.
5. An odorless environmental friendly coating according to claims 1 to 4, wherein: the negative ion composite additive is a shell-core structure particle formed by coating electrically excited nano tourmaline with tetraethoxysilane, wherein the shell layer is a tetraethoxysilane film layer, and the core layer is electrically excited nano tourmaline.
6. An odorless environmental friendly coating according to claims 1 to 4, wherein: the defoaming agent is polydimethylsiloxane.
7. An odorless environmental friendly coating according to claims 1 to 4, wherein: the thickener is hydroxyethyl cellulose or montmorillonite clay.
8. An odorless environmental friendly coating according to claims 1 to 4, wherein: the SiO2 aerogel is powder with the density of 0.1-0.2 g/cm3, the porosity of 82-87% and the specific surface area of 800-860 m2/g, and is selected from a sieving material with the mesh of 1000-1500.
9. An odorless environmental friendly coating according to any one of claims 1 to 8, wherein: the preparation method specifically comprises the following steps:
s1, weighing raw materials: weighing 20-30 parts of pure acrylic emulsion by weight, placing the pure acrylic emulsion in a stirring kettle, sequentially adding 3-5 parts of titanium dioxide and 2-4 parts of polyurethane, stirring by using a stirring device, and stirring at a rotating speed of 500-700 rpm;
s2, blending raw materials: weighing 1.2-1.6 parts of thickening agent and 1.4-1.8 parts of defoaming agent according to parts by weight, adding the thickening agent and 1.4-1.8 parts of defoaming agent into a dispersion cylinder, mixing with sufficient ethanol, sequentially adding 1-3 parts of negative ion composite additive, 5-7 parts of diatomite, 4-6 parts of bamboo charcoal powder and 2.5-3.5 parts of silicon dioxide aerogel, stirring at a rotating speed of 150-200 revolutions per minute, and waiting for a colloidal solution to be formed;
s3, grinding raw materials: weighing 4.5-5.5 parts of hollow glass beads and 5-7 parts of calcium silicate in parts by weight, adding the hollow glass beads and the calcium silicate into grinding equipment for grinding, and taking out mixed grinding powder for later use after the grinding is carried out to obtain powder;
s4, mixing the raw materials: and pouring the mixed grinding powder of S3 and the colloidal solution of S2 into a stirring kettle, increasing the rotating speed of the stirring kettle to 800-1000 r/min, stirring for 30-40 min, and waiting until the mixed solution is uniformly stirred and no bubble is generated.
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| CN112694677A (en) * | 2021-01-08 | 2021-04-23 | 会通新材料股份有限公司 | Bamboo charcoal and tourmaline composite Ag-loaded antibacterial agent, antibacterial polypropylene composition and preparation method |
| CN113263850A (en) * | 2021-05-13 | 2021-08-17 | 刘晨 | Latex ink digital printing film material for improving washing fading phenomenon and preparation method thereof |
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Application publication date: 20200522 |