CN110746807A - Preparation method of pigment for painting - Google Patents
Preparation method of pigment for painting Download PDFInfo
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- CN110746807A CN110746807A CN201911003892.XA CN201911003892A CN110746807A CN 110746807 A CN110746807 A CN 110746807A CN 201911003892 A CN201911003892 A CN 201911003892A CN 110746807 A CN110746807 A CN 110746807A
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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
- C09D5/06—Artists' paints
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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
- C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09D103/04—Starch derivatives
- C09D103/06—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
-
- 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
- C09D7/43—Thickening agents
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses a preparation method of a pigment for painting, which relates to the technical field of pigments and comprises the following steps: (1) adding a hydrogen fluoride solution and tetrabutyl titanate into a reaction kettle, stirring, then adding nano zeolite powder, naturally cooling to room temperature, filtering to obtain a reactant, cleaning, and drying to obtain a composite material; (2) preparing a starch compound; (3) sequentially adding phytic acid, toner, a dispersing agent and water into a stirrer, stirring, then adding the composite material and the starch composite, and continuously stirring at the rotating speed of 2000r/min for 1 hour to obtain the pigment. The pigment prepared by the invention has excellent cracking resistance and moisture absorption resistance.
Description
Technical Field
The invention belongs to the technical field of pigments, and particularly relates to a preparation method of a pigment for painting.
Background
The aqueous painting pigment is a painting pigment which can be dissolved or diluted by water, and generally comprises watercolor painting pigment, gouache painting pigment, acrylic painting pigment, finger painting pigment, Chinese painting pigment and the like. In the art teaching of primary and secondary schools, the water-soluble painting pigment is a pigment which is commonly used, and the natural interest and the unique texture generated by the special painting skill of the water-soluble painting pigment also greatly arouse the interest of students in learning colors. In order to make the water-based painting pigment have better service performance, such as no cracking, low color difference and the like and lower manufacturing cost, fillers, such as calcium carbonate, talcum powder and the like, are generally added into the painting pigment, but the fillers exist in the product in a granular particle form, have larger specific surface area, adsorb a large amount of air and are easy to cause bacterial breeding.
Disclosure of Invention
The invention aims to provide a preparation method of a pigment for painting aiming at the existing problems.
The invention is realized by the following technical scheme:
a preparation method of a pigment for painting comprises the following steps:
(1) sequentially adding a hydrogen fluoride solution and tetrabutyl titanate into a reaction kettle, slowly heating to 172-175 ℃, stirring at a rotating speed of 150r/min for 10 hours, then adding nano zeolite powder accounting for 10-12% of the mass of the tetrabutyl titanate, naturally cooling to room temperature, filtering to obtain a reactant, cleaning the reactant by using absolute ethyl alcohol, drying in vacuum to constant weight, and then grinding for 2 hours to obtain a composite material;
(2) treating starch with an acid solution to obtain acidified starch, mixing the acidified starch with an organic solvent which is 5 times of the mass of the acidified starch, adding the mixture into a reaction kettle, uniformly stirring, then adding a catalyst, heating in a water bath to 88 ℃, keeping the temperature and stirring for 2 hours, standing for 2 hours, filtering to obtain a precipitate, cleaning the precipitate with absolute ethyl alcohol, drying in vacuum to constant weight, and grinding for 2 hours to obtain a starch compound;
(3) sequentially adding phytic acid, toner, dispersant and water into a stirrer, stirring at 60 deg.C for 30-40min, adding composite material and starch composite, and stirring at 2000r/min for 1 hr.
According to a further technical scheme, the mass fraction of the hydrogen fluoride solution is 35%.
As a further technical scheme, the volume ratio of the hydrogen fluoride solution to the tetrabutyl titanate is 3-5: 25-28.
As a further technical scheme, the preparation method of the acidified starch comprises the steps of adding starch into a sulfuric acid solution which is 5 times of the starch in mass and has a mass fraction of 15%, stirring and reacting for 2 hours at 60 ℃, filtering, washing to be neutral, and drying to be constant in weight to obtain the acidified starch.
As a further technical scheme, the organic solvent is lutidine.
As a further technical scheme, the organic solvent is dimethylformamide.
As a further technical scheme, the catalyst is copper nitrate, and the dosage of the catalyst is 0.5 percent of the total mass of the starch.
As a further technical scheme, the starch is soybean starch.
As a further technical scheme, the mixing mass ratio of the phytic acid, the toner, the dispersing agent, the water, the composite material and the starch composite is 3-5:20-22: 0.3-0.5: 40-45:4-6:5-8.
Has the advantages that: according to the invention, through the synergistic effect of the phytic acid and the composite material, the phytic acid is also called as inositol hexaphosphate, has 6 phosphate radicals with negative electricity, has extremely strong chelating ability, can be complexed with active ingredients in the composite material to form a plurality of chelating rings, and the formed complex has stable chemical properties, can stably and continuously provide an antibacterial effect, and belongs to a green and safe natural compound due to the strong chelating ability of the phytic acid, and meanwhile, the phytic acid widely exists in plant-derived foods such as rice bran and the like; by adding the starch compound, the thickening effect on a system is achieved, and the starch compound can be cooperated with a dispersing agent to achieve a certain rheological property adjusting effect, so that the anti-cracking performance is obviously improved. The starch compound prepared by the invention has a thickening mechanism of adsorbing latex particles for thickening, has lower surface tension by adding a dispersing agent, and has a better dispersing effect on toner and the like; in addition, in the process of drying and film forming, the pigment can be solidified along with moisture to form a relatively stable paint film, so that the phenomenon of mutual adhesion is avoided.
Detailed Description
Example 1
A preparation method of a pigment for painting comprises the following steps:
(1) adding a hydrogen fluoride solution and tetrabutyl titanate into a reaction kettle in sequence, slowly heating to 172 ℃, stirring at a rotating speed of 150r/min for 10 hours, then adding nano zeolite powder accounting for 10% of the mass of the tetrabutyl titanate, naturally cooling to room temperature, filtering to obtain a reactant, cleaning the reactant by using absolute ethyl alcohol, drying in vacuum to constant weight, and then grinding for 2 hours to obtain a composite material;
(2) treating starch with an acid solution to obtain acidified starch, mixing the acidified starch with an organic solvent which is 5 times of the mass of the acidified starch, adding the mixture into a reaction kettle, uniformly stirring, then adding a catalyst, heating in a water bath to 88 ℃, keeping the temperature and stirring for 2 hours, standing for 2 hours, filtering to obtain a precipitate, cleaning the precipitate with absolute ethyl alcohol, drying in vacuum to constant weight, and grinding for 2 hours to obtain a starch compound;
(3) sequentially adding phytic acid, toner, dispersant and water into a stirrer, stirring at 60 ℃ for 30min, then adding the composite material and the starch composite, and continuously stirring at the rotating speed of 2000r/min for 1 h to obtain the pigment.
According to a further technical scheme, the mass fraction of the hydrogen fluoride solution is 35%.
As a further technical scheme, the volume ratio of the hydrogen fluoride solution to the tetrabutyl titanate is 3: 25.
As a further technical scheme, the preparation method of the acidified starch comprises the steps of adding starch into a sulfuric acid solution which is 5 times of the starch in mass and has a mass fraction of 15%, stirring and reacting for 2 hours at 60 ℃, filtering, washing to be neutral, and drying to be constant in weight to obtain the acidified starch.
As a further technical scheme, the organic solvent is lutidine.
As a further technical scheme, the organic solvent is dimethylformamide.
As a further technical scheme, the catalyst is copper nitrate, and the dosage of the catalyst is 0.5 percent of the total mass of the starch.
As a further technical scheme, the starch is soybean starch.
According to a further technical scheme, the mixing mass ratio of the phytic acid, the toner, the dispersing agent, the water, the composite material and the starch composite is 3:20: 0.3: 40:4:5.
Example 2
A preparation method of a pigment for painting comprises the following steps:
(1) adding a hydrogen fluoride solution and tetrabutyl titanate into a reaction kettle in sequence, slowly heating to 175 ℃, stirring at a rotating speed of 150r/min for 10 hours, then adding nano zeolite powder accounting for 12% of the mass of the tetrabutyl titanate, naturally cooling to room temperature, filtering to obtain a reactant, cleaning the reactant by using absolute ethyl alcohol, drying in vacuum to constant weight, and then grinding for 2 hours to obtain a composite material;
(2) treating starch with an acid solution to obtain acidified starch, mixing the acidified starch with an organic solvent which is 5 times of the mass of the acidified starch, adding the mixture into a reaction kettle, uniformly stirring, then adding a catalyst, heating in a water bath to 88 ℃, keeping the temperature and stirring for 2 hours, standing for 2 hours, filtering to obtain a precipitate, cleaning the precipitate with absolute ethyl alcohol, drying in vacuum to constant weight, and grinding for 2 hours to obtain a starch compound;
(3) sequentially adding phytic acid, toner, dispersant and water into a stirrer, stirring at 60 deg.C for 30-40min, adding composite material and starch composite, and stirring at 2000r/min for 1 hr.
According to a further technical scheme, the mass fraction of the hydrogen fluoride solution is 35%.
As a further technical scheme, the volume ratio of the hydrogen fluoride solution to the tetrabutyl titanate is 5: 28.
As a further technical scheme, the preparation method of the acidified starch comprises the steps of adding starch into a sulfuric acid solution which is 5 times of the starch in mass and has a mass fraction of 15%, stirring and reacting for 2 hours at 60 ℃, filtering, washing to be neutral, and drying to be constant in weight to obtain the acidified starch.
As a further technical scheme, the organic solvent is lutidine.
As a further technical scheme, the organic solvent is dimethylformamide.
As a further technical scheme, the catalyst is copper nitrate, and the dosage of the catalyst is 0.5 percent of the total mass of the starch.
As a further technical scheme, the starch is soybean starch.
According to a further technical scheme, the mixing mass ratio of the phytic acid, the toner, the dispersing agent, the water, the composite material and the starch composite is 5: 22: 0.5: 45: 6: 8.
Example 3
A preparation method of a pigment for painting comprises the following steps:
(1) adding a hydrogen fluoride solution and tetrabutyl titanate into a reaction kettle in sequence, slowly heating to 173 ℃, stirring at a rotating speed of 150r/min for 10 hours, then adding nano zeolite powder accounting for 11% of the mass of the tetrabutyl titanate, naturally cooling to room temperature, filtering to obtain a reactant, cleaning the reactant by using absolute ethyl alcohol, drying in vacuum to constant weight, and then grinding for 2 hours to obtain a composite material;
(2) treating starch with an acid solution to obtain acidified starch, mixing the acidified starch with an organic solvent which is 5 times of the mass of the acidified starch, adding the mixture into a reaction kettle, uniformly stirring, then adding a catalyst, heating in a water bath to 88 ℃, keeping the temperature and stirring for 2 hours, standing for 2 hours, filtering to obtain a precipitate, cleaning the precipitate with absolute ethyl alcohol, drying in vacuum to constant weight, and grinding for 2 hours to obtain a starch compound;
(3) sequentially adding phytic acid, toner, dispersant and water into a stirrer, stirring at 60 deg.C for 30-40min, adding composite material and starch composite, and stirring at 2000r/min for 1 hr.
According to a further technical scheme, the mass fraction of the hydrogen fluoride solution is 35%.
As a further technical scheme, the volume ratio of the hydrogen fluoride solution to the tetrabutyl titanate is 4: 26.
As a further technical scheme, the preparation method of the acidified starch comprises the steps of adding starch into a sulfuric acid solution which is 5 times of the starch in mass and has a mass fraction of 15%, stirring and reacting for 2 hours at 60 ℃, filtering, washing to be neutral, and drying to be constant in weight to obtain the acidified starch.
As a further technical scheme, the organic solvent is lutidine.
As a further technical scheme, the organic solvent is dimethylformamide.
As a further technical scheme, the catalyst is copper nitrate, and the dosage of the catalyst is 0.5 percent of the total mass of the starch.
As a further technical scheme, the starch is soybean starch.
According to a further technical scheme, the mixing mass ratio of the phytic acid, the toner, the dispersing agent, the water, the composite material and the starch composite is 4:21: 0.4: 42:5:6.
The examples and the comparative examples are subjected to performance tests under the same conditions, wherein the performance tests comprise antibacterial property, color difference, cracking resistance and moisture absorption resistance, and specific comparison results are shown in table 1:
resistance to cracking (6 ℃, 12 hours at 42 ℃ C. and 12 hours at 42 ℃ C. for 40 days)
Moisture absorption resistance: standing at 80% humidity for 3 days;
TABLE 1
| Resistance to cracking | Moisture absorption resistance | |
| Example 1 | Does not crack | Does not soften and adhere to contact |
| Example 2 | Does not crack | Does not soften and adhere to contact |
| Example 3 | Does not crack | Does not soften and adhere to contact |
| Comparative example 1 | Cracking of | Does not soften and adhere to contact |
| Comparative example 2 | Cracking of | Softening, contact adhesion |
Comparative example 1: only differs from example 1 in that no phytic acid was added;
comparative example 2: the difference from the example 1 is that the cassava starch is not subjected to microwave modification treatment in the preparation process of the activated starch ether;
as can be seen from table 1, the pigment prepared according to the present invention has excellent resistance to cracking and moisture absorption.
The color difference comparison is carried out on the embodiment, the color is dark when the embodiment is wet, and the color is slightly lighter when the embodiment is dry, so that the color is not grayed and darkened.
Examples antimicrobial properties: the new pigment has an antibacterial rate of more than 96% against escherichia coli, staphylococcus aureus, aspergillus brasiliensis, aspergillus niger and aspergillus niger, and after 3 months, the new pigment has an antibacterial rate of more than 80% against escherichia coli, staphylococcus aureus, aspergillus brasiliensis, aspergillus niger and has excellent antibacterial durability.
Claims (9)
1. The preparation method of the pigment for painting is characterized by comprising the following steps:
(1) sequentially adding a hydrogen fluoride solution and tetrabutyl titanate into a reaction kettle, slowly heating to 172-175 ℃, stirring at a rotating speed of 150r/min for 10 hours, then adding nano zeolite powder accounting for 10-12% of the mass of the tetrabutyl titanate, naturally cooling to room temperature, filtering to obtain a reactant, cleaning the reactant by using absolute ethyl alcohol, drying in vacuum to constant weight, and then grinding for 2 hours to obtain a composite material;
(2) treating starch with an acid solution to obtain acidified starch, mixing the acidified starch with an organic solvent which is 5 times of the mass of the acidified starch, adding the mixture into a reaction kettle, uniformly stirring, then adding a catalyst, heating in a water bath to 88 ℃, keeping the temperature and stirring for 2 hours, standing for 2 hours, filtering to obtain a precipitate, cleaning the precipitate with absolute ethyl alcohol, drying in vacuum to constant weight, and grinding for 2 hours to obtain a starch compound;
(3) sequentially adding phytic acid, toner, dispersant and water into a stirrer, stirring at 60 deg.C for 30-40min, adding composite material and starch composite, and stirring at 2000r/min for 1 hr.
2. A method for preparing a pigment for drawing according to claim 1, wherein the mass fraction of the hydrogen fluoride solution is 35%.
3. A method for preparing a pigment for drawing according to claim 1, wherein the volume ratio of the hydrogen fluoride solution to the tetrabutyl titanate is 3-5: 25-28.
4. A method for preparing a pigment for drawing as claimed in claim 1, wherein the acidified starch is prepared by adding starch into a sulfuric acid solution with a mass fraction of 15% which is 5 times of the mass of the starch, stirring and reacting for 2 hours at 60 ℃, filtering, washing to neutrality, and drying to constant weight.
5. A method of preparing a pigment for drawing according to claim 1, wherein the organic solvent is lutidine.
6. A method of preparing a pigment for drawing according to claim 1, wherein the organic solvent is dimethylformamide.
7. A method of preparing a pigment for drawing according to claim 1, wherein the catalyst is copper nitrate, and the amount of the catalyst is 0.5% of the total mass of the starch.
8. A method of preparing a pigment for painting according to claim 1, wherein the starch is soybean starch.
9. The preparation method of pigment for painting as claimed in claim 1, wherein the mixing mass ratio of the phytic acid, the toner, the dispersant, the water, the composite material and the starch composite is 3-5:20-22: 0.3-0.5: 40-45:4-6:5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003892.XA CN110746807A (en) | 2019-10-22 | 2019-10-22 | Preparation method of pigment for painting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003892.XA CN110746807A (en) | 2019-10-22 | 2019-10-22 | Preparation method of pigment for painting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110746807A true CN110746807A (en) | 2020-02-04 |
Family
ID=69279294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911003892.XA Withdrawn CN110746807A (en) | 2019-10-22 | 2019-10-22 | Preparation method of pigment for painting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110746807A (en) |
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2019
- 2019-10-22 CN CN201911003892.XA patent/CN110746807A/en not_active Withdrawn
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Application publication date: 20200204 |