CN111269593A - Water-based inorganic antibacterial insulating paint and preparation method thereof - Google Patents
Water-based inorganic antibacterial insulating paint and preparation method thereof Download PDFInfo
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- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
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- 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
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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
- C09D5/08—Anti-corrosive paints
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- 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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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant 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
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- 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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- 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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Abstract
The invention relates to a water-based inorganic antibacterial insulating paint and a preparation method thereof. Comprises the following components: inorganic film forming material, antibacterial agent, antifreezing agent, bentonite, dispersing agent, defoaming agent, wetting agent, flatting agent, silane coupling agent, talcum powder, mica powder, silicon micropowder, glass glaze powder and water. The water-based inorganic antibacterial insulating paint is prepared by a certain process. The product of the invention has excellent insulativity (high dielectric strength, small dielectric loss and large volume resistivity), heat resistance and antibacterial property, effectively solves the problems of easy aging caused by poor heat resistance of a paint film and bacteria breeding on the surface caused by humid environment, in addition, the high-alkalinity inorganic film forming material has the in-tank corrosion resistance, does not need to add in-tank preservative, can have the synergistic antibacterial effect with the antibacterial agent, is water-based and environment-friendly, and has great application prospect.
Description
Technical Field
The invention relates to the technical field of water-based paint, in particular to water-based inorganic antibacterial insulating paint and a preparation method thereof.
Background
Insulating coatings are coatings that are applied to the surface of a device to render the surface of the substrate non-conductive. The performance and lifetime of electrical equipment and electronic devices are closely related. At present, most of insulating coatings are oily and have poor environmental protection property, and organic film forming substances are adopted, so that the insulating coatings have poor heat resistance and are easy to age, the surface of a base material is easy to mildew under the humid environment, the service life of a device is shortened, and the health of a user is harmed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a water-based inorganic antibacterial insulating paint and a preparation method thereof.
The invention aims to provide a water-based inorganic antibacterial insulating paint which comprises the following components in percentage by volume:
further, the water-based inorganic antibacterial insulating paint is characterized in that the inorganic film forming material is one or more selected from silica sol, potassium silicate and sodium silicate.
Further, the water-based inorganic antibacterial insulating paint is characterized in that the antibacterial agent is selected from one or more of 2-methyl-4-isothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 4, 5-dichloro-2-n-octyl-3-isothiazolin-one and phenylpropyl isothiazolin-3-one.
Further, the water-based inorganic antibacterial insulating paint is characterized in that the antifreezing agent is one or more selected from propylene glycol, ethylene glycol or ethylene glycol butyl ether.
Further, the water-based inorganic antibacterial insulating coating is characterized in that bentonite is one or more selected from sodium bentonite, calcium bentonite and hydrogen bentonite.
Further, the water-based inorganic antibacterial insulating paint is characterized in that the dispersant is an inorganic dispersant, an organic dispersant or a high molecular polymer organic dispersant, and is selected from one or more of sodium pyrophosphate, sodium hexametaphosphate, sodium metasilicate, alkyl sulfate, alkyl aryl sulfonate, sodium alkyl succinate, maleic anhydride copolymer, polycarboxylate or condensed naphthalene sulfonate.
Further, the water-based inorganic antibacterial insulating coating is characterized in that the defoaming agent is selected from one or more of paraffin-based mineral oil, polyether modified dimethyl siloxane or polysiloxane.
Further, the water-based inorganic antibacterial insulating paint is characterized in that the wetting agent is selected from one or more of alkyl polyoxyethylene ether, alkyl aryl polyether, polyethoxy nonyl phenol, alkyl sodium sulfosuccinate or polyether modified dimethyl siloxane.
Further, the water-based inorganic antibacterial insulating coating is characterized in that the leveling agent is one or more selected from a modified organic silicon leveling agent, a modified acrylic acid leveling agent and a polyurethane leveling agent.
Further, the water-based inorganic antibacterial insulating coating is characterized in that the silane coupling agent is selected from one or more of KH550, KH560, KH570 and KH 858.
Further, the water-based inorganic antibacterial insulating paint is characterized in that the hardness of water is less than 450 mg/L.
Another object of the present invention is to provide a water-based inorganic antibacterial insulating paint, comprising the following steps:
at the rotation speed of 200-300r/min, adding bentonite, an antifreezing agent, a dispersing agent, a defoaming agent, a wetting agent and a silane coupling agent into water, and stirring for 5-10 min; then the rotating speed is changed to 1200-1300r/min, the talcum powder, the mica powder, the silicon micropowder and the glass glaze powder are added, and the stirring is continued for 15-20 min; and then the rotating speed is changed to 500-600r/min, the inorganic film forming material, the antibacterial agent and the flatting agent are sequentially added, and the stirring is continued for 10-15min to obtain the water-based inorganic antibacterial insulating coating.
The invention has the following beneficial effects:
the invention selects inorganic film forming matter as film forming matter, and prepares the water-based inorganic antibacterial insulating paint by a certain process together with water, antifreeze, bentonite, dispersant, defoamer, wetting agent, flatting agent, silane coupling agent, antibacterial agent, talcum powder, mica powder, silicon micropowder and glass glaze powder. The product has excellent insulativity (high dielectric strength, small dielectric loss and large volume resistivity), heat resistance and antibacterial property, effectively solves the problems of easy aging caused by poor heat resistance of a paint film and surface breeding of bacteria caused by humid environment, in addition, the high-alkalinity inorganic film forming material has in-tank corrosion resistance, does not need to add in-tank preservative, can have a synergistic antibacterial effect with an antibacterial agent, is water-based and environment-friendly, and has a great application prospect.
Detailed Description
First, embodiment 1:
an aqueous inorganic antibacterial insulating paint comprises the following components:
the specific preparation method is as follows:
adding nano bentonite, propylene glycol, sodium pyrophosphate, paraffin-based mineral oil, alkyl polyoxyethylene ether and KH550 into water at the rotation speed of 200-300r/min, and stirring for 5-10 min; then the rotating speed is changed to 1200-1300r/min, the talcum powder, the mica powder, the silicon micropowder and the glass glaze powder are added, and the stirring is continued for 15-20 min; and then the rotating speed is changed to 500-600r/min, the silica sol, the 2-methyl-4 isothiazoline-3-one and the modified organic silicon flatting agent are sequentially added, and the stirring is continued for 10-15min, so that the water-based inorganic antibacterial insulating coating is obtained.
Comparative example 1-1:
an aqueous inorganic antibacterial insulating paint having the same composition as described in example 1 except that 2-methyl-4 isothiazolin-3 one as an antibacterial agent was not added and the balance was made up with water.
Comparative examples 1 to 2:
an aqueous inorganic antibacterial insulating paint having the same composition as described in example 1 except that no inorganic film forming material silica sol was added and the balance was made up with water.
Comparative examples 1 to 3:
an aqueous inorganic antibacterial insulating paint, which comprises the same components as those described in example 1 except that the inorganic film-forming material is an acrylic resin, the antibacterial agent 2-methyl-4 isothiazolin-3-one is not added, and the balance is made up with water.
Second, example 2:
an aqueous inorganic antibacterial insulating paint comprises the following components:
the specific preparation method is as follows:
adding calcium bentonite, glycol, alkyl sulfate, polyether modified dimethyl siloxane, polyethoxy nonyl phenol and KH560 into water at the rotation speed of 200-300r/min, and stirring for 5-10 min; then the rotating speed is changed to 1200-1300r/min, the talcum powder, the mica powder, the silicon micropowder and the glass glaze powder are added, and the stirring is continued for 15-20 min; and then the rotating speed is changed to 500-600r/min, potassium silicate, 2-n-octyl-4 isothiazoline-3-ketone and the modified acrylic flatting agent are sequentially added, and the mixture is continuously stirred for 10-15min to obtain the water-based inorganic antibacterial insulating coating.
Comparative example 2-1:
an aqueous inorganic antibacterial insulating paint having the same composition as described in example 2 except that 2-n-octyl-4 isothiazolin-3 one as an antibacterial agent was not added and the balance was made up with water.
Comparative examples 2 to 2:
an aqueous inorganic antimicrobial insulating coating composition having the same composition as described in example 2 except that potassium silicate, an inorganic film forming material, was not added and the balance was made up with water.
Comparative examples 2 to 3:
an aqueous inorganic antibacterial insulating paint, which comprises the same components as those described in example 2 except that the inorganic film-forming material is an epoxy resin, 2-n-octyl-4 isothiazolin-3 one as an antibacterial agent is not added, and the balance is made up with water.
Third, example 3:
an aqueous inorganic antibacterial insulating paint comprises the following components:
the specific preparation method is as follows:
adding hydrogen bentonite, ethylene glycol monobutyl ether, maleic anhydride copolymer, polysiloxane, alkyl sodium sulfosuccinate and KH858 into water at the rotation speed of 200-; then the rotating speed is changed to 1200-1300r/min, the talcum powder, the mica powder, the silicon micropowder and the glass glaze powder are added, and the stirring is continued for 15-20 min; and then the rotating speed is changed to 500-600r/min, sodium silicate, benzisothiazoline-3-one and a polyurethane flatting agent are sequentially added, and stirring is continued for 10-15min to obtain the water-based inorganic antibacterial insulating coating.
Comparative example 3-1:
an aqueous inorganic antibacterial insulating paint, the composition of which is the same as that described in example 3 except that no antibacterial agent benzisothiazolinone-3-one is added and the balance is made up with water.
Comparative example 3-2:
an aqueous inorganic antimicrobial insulating coating having the same composition as described in example 3 except that no inorganic film forming agent, sodium silicate, was added and the balance was made up with water.
Comparative examples 3 to 3:
an aqueous inorganic antibacterial insulating paint, the composition of which is the same as that described in example 3, except that the inorganic film-forming material is a polyurethane resin, the antibacterial agent benzisothiazolin-3-one is not added, and the balance is made up with water.
Fourthly, comparing test results:
the above examples 1 to 3, comparative examples 1-1 to 1-3, comparative examples 2-1 to 2-3 and comparative examples 3-1 to 3-3 were subjected to the correlation performance test. The properties tested and the reference methods are shown in the table below.
TABLE 1 parameters and reference methods related to the invention
The test results of example 1 and comparative examples 1-1 to 1-3 are shown in the following table.
TABLE 2 test results of example 1 and comparative examples 1-1 to 1-3
The test results of example 2 and comparative examples 2-1 to 2-3 are shown in the following table.
TABLE 3 test results of example 2 and comparative examples 2-1 to 2-3
The results of the tests of example 3 and comparative examples 3-1 to 3-3 are shown in the following table.
TABLE 4 test results of example 3 and comparative examples 3-1 to 3-3
As can be seen from the test results in tables 2 to 4, the antibacterial agent in the formula directly affects the antibacterial and antifungal properties of the formula, and the antibacterial properties of comparative examples 1-1 to 3-1 lacking the antibacterial agent are greatly reduced compared with those of examples 1-3; the inorganic film forming material directly influences the film forming property of the formula, and compared with the film forming property of the comparative examples 1-2-3-2 lacking the inorganic film forming material, the film forming property is cracked and cannot be formed; the inorganic film forming material also influences the dielectric strength, the volume resistivity, the dielectric loss and the heat resistance level of the formula, the inorganic film forming material is replaced by the comparative examples 1-3 of common resin in equal amount, and compared with the examples 1-3, the dielectric strength, the volume resistivity, the heat resistance level, the bacterial resistance and the mould resistance are all reduced, and the dielectric loss is all increased;
in addition, as can be seen from the test results in tables 2 to 4, the antibacterial agent-deficient comparative examples 1-2 to 3-2 showed a significant improvement in both antibacterial and antifungal activity, compared to the antibacterial agent-deficient comparative examples 1-3 to 3-3, because the overbased inorganic film-forming material was not conducive to the growth of fungi. Therefore, the inorganic film-forming material and the antibacterial agent can synergistically improve the antibacterial performance of the product.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and do not limit the protection scope of the present invention. It will be understood by those skilled in the art that various deductions and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. The water-based inorganic antibacterial insulating paint is characterized by comprising the following components in percentage by volume:
2. the aqueous inorganic antibacterial insulating paint according to claim 1, wherein the inorganic film-forming material is selected from one or more of silica sol, potassium silicate and sodium silicate.
3. The aqueous inorganic antibacterial insulating paint according to claim 1, wherein the antibacterial agent is selected from one or more of 2-methyl-4-isothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 4, 5-dichloro-2-n-octyl-3-isothiazolin-one, and benzisothiazolin-3-one.
4. The aqueous inorganic antibacterial insulating paint according to claim 1, wherein the antifreeze is selected from one or more of propylene glycol, ethylene glycol or butyl cellosolve.
5. The water-based inorganic antibacterial insulating paint according to claim 1, characterized in that the bentonite is selected from one or more of sodium bentonite, calcium bentonite and hydrogen bentonite.
6. The aqueous inorganic antibacterial insulating paint according to claim 1, wherein the dispersant is inorganic dispersant, organic dispersant or high molecular polymer organic dispersant, and is selected from one or more of sodium pyrophosphate, sodium hexametaphosphate, sodium metasilicate, alkyl sulfate, alkyl aryl sulfonate, sodium alkyl succinate, maleic anhydride copolymer, polycarboxylate or condensed naphthalene sulfonate.
7. The aqueous inorganic antibacterial insulating coating according to claim 1, wherein the defoaming agent is selected from one or more of paraffin-based mineral oil, polyether-modified dimethyl siloxane or polysiloxane.
8. The aqueous inorganic antibacterial insulating paint according to claim 1, wherein the wetting agent is selected from one or more of alkyl polyoxyethylene ether, alkylaryl polyether, polyethoxy nonyl phenol, sodium alkyl sulfosuccinate or polyether modified dimethyl siloxane.
9. The aqueous inorganic antibacterial insulating paint according to claim 1, wherein the leveling agent is one or more selected from a modified organosilicon leveling agent, a modified acrylic leveling agent, and a polyurethane leveling agent.
10. The method for preparing an aqueous inorganic antibacterial insulating coating according to any one of claims 1 to 9, characterized by comprising the steps of:
at the rotation speed of 200-300r/min, adding bentonite, an antifreezing agent, a dispersing agent, a defoaming agent, a wetting agent and a silane coupling agent into water, and stirring for 5-10 min; then the rotating speed is changed to 1200-1300r/min, the talcum powder, the mica powder, the silicon micropowder and the glass glaze powder are added, and the stirring is continued for 15-20 min; and then the rotating speed is changed to 500-600r/min, the inorganic film forming material, the antibacterial agent and the flatting agent are sequentially added, and the stirring is continued for 10-15min to obtain the water-based inorganic antibacterial insulating coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010234024.9A CN111269593A (en) | 2020-03-27 | 2020-03-27 | Water-based inorganic antibacterial insulating paint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010234024.9A CN111269593A (en) | 2020-03-27 | 2020-03-27 | Water-based inorganic antibacterial insulating paint and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021048880A1 (en) * | 2019-09-13 | 2021-03-18 | Hripa Ehf | Environmentally benign antifouling coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021048880A1 (en) * | 2019-09-13 | 2021-03-18 | Hripa Ehf | Environmentally benign antifouling coating |
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Application publication date: 20200612 |