CN115216213A - High-light-transmittance antifogging spray, coating material and preparation method - Google Patents
High-light-transmittance antifogging spray, coating material and preparation method Download PDFInfo
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- CN115216213A CN115216213A CN202210645213.4A CN202210645213A CN115216213A CN 115216213 A CN115216213 A CN 115216213A CN 202210645213 A CN202210645213 A CN 202210645213A CN 115216213 A CN115216213 A CN 115216213A
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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
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
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Abstract
The invention relates to a high-light-transmission antifogging spray, a high-light-transmission antifogging coating and a preparation method thereof. The high-light-transmission antifogging spray comprises the following components in percentage by mass: 0.01 to 1.0g of fluorine-containing polyether, 0.01 to 1.0g of micromolecule fluoroalcohol, 0.01 to 1.0g of anionic surfactant, 0.5 to 9.5g of micromolecule alcohol and 0.5 to 9.5g of deionized water. Also, 0.005 to 0.1g of an antibacterial agent may be included. The invention adopts the modes of spraying (or dripping) firstly and then wiping, and the antifogging spray is uniformly coated on the surface of the transparent substrate to construct the high-light-transmission antifogging coating. The contact angle between the coating and water drops is small, and the condensed water drops on the surface of the coating are spread into a thin water film due to excellent hydrophilicity, so that the scattering of light is eliminated, the light transmittance of the original substrate material is kept, and the antifogging effect is excellent. And has the advantages of simple operation, convenient construction and rapid film formation. The solvent of the antifogging spray is a water/alcohol system, so that the high-light-transmission antifogging spray, the coating and the preparation method are environment-friendly and accord with the environmental protection concept.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a high-light-transmission antifogging spray, a coating material and a preparation method.
Background
When the cold and hot environments are rapidly switched, tiny water drops in the air are easily adhered to the surface of a solid to be fogged, and the tiny water drops can strongly scatter visible light, so that the transparencies of devices such as spectacle lenses, smart phone display screens and windshields of vehicles are reduced, and a lot of inconvenience is brought to users; the fogging phenomenon occurring on the surfaces of devices such as surgical scopes, instrument panels of equipment, solar cells, etc. is more likely to cause serious accidents. Therefore, it is very necessary to cover the surface of the transparent material which is easily fogged with an antifogging coating to change the phenomenon. At present, most antifogging coatings on the market have the defects of short lasting antifogging life, low transparency and the like. It is urgently needed to find a coating material which is simple and convenient in construction, high in light transmittance and long in lasting antifogging life.
Disclosure of Invention
The invention aims to provide a high-light-transmission antifogging spray, a coating material and a preparation method.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the invention provides a high-light-transmission antifogging spray which comprises the following components in percentage by mass: 0.01 to 1.0g of fluorine-containing polyether, 0.01 to 1.0g of micromolecule fluoroalcohol, 0.01 to 1.0g of anionic surfactant, 0.5 to 9.5g of micromolecule alcohol and 0.5 to 9.5g of deionized water.
Preferably, the high-light-transmission antifogging spray further comprises the following components in percentage by mass: 0.005-0.1 g of antibacterial agent.
Preferably, the fluoropolyether is composed of two or more blocks; wherein, at least one fluorine-containing block is an alkane chain segment, an aromatic hydrocarbon chain segment or a combined chain segment of alkane and aromatic hydrocarbon after hydrogen atoms are partially replaced by fluorine atoms; and at least one polyether block, wherein the polyether block is a polyoxyethylene ether chain segment or a combination chain segment of polyoxyethylene ether and polyoxypropylene ether.
More preferably, the fluoropolyether is hydroxyl-terminated fluoropolyether or methyl-terminated fluoropolyether, and the structural formula is as follows:
in the structural formula of the hydroxyl-terminated fluorine-containing polyether, n = 4-12; m =4 to 20;
in the structural formula of the methyl-terminated fluorine-containing polyether, n = 4-12; m =4 to 20.
It is preferable that:
the micromolecule fluoroalcohol is the fluoroalcohol which can be dissolved in water, methanol, ethanol, isopropanol or glycol and other solvents;
the anionic surfactant is an anionic surfactant which can be dissolved in solvents such as water, methanol, ethanol, isopropanol or glycol;
the small molecular alcohol exists in a liquid state within the range of minus 30 ℃ to plus 30 ℃.
Preferably, the antimicrobial agent is soluble in water or small alcohol.
The invention also provides a preparation method of the high-light-transmission antifogging spray, which comprises the following steps:
weighing the fluoropolyether, the micromolecule fluoroalcohol, the anionic surfactant, the micromolecule alcohol and the deionized water according to the mass parts, adding the mixture into a reactor, uniformly stirring, and filtering the mixture to obtain the high-light-transmittance antifogging spray.
Preferably, the following components in parts by mass are also added: 0.005-0.1 g of antibacterial agent.
Preferably, the stirring time is 20-30 minutes to ensure that all components in the high-light-transmittance antifogging spray are uniformly mixed; the aperture of the filter element used in the filtering step is less than or equal to 5 microns.
The invention also provides a high-light-transmission anti-fog coating material, which is an anti-fog coating attached to the surface of a transparent substrate; the antifogging coating is obtained by coating the high-light-transmission antifogging spray.
The invention also provides a preparation method of the high-light-transmission antifogging coating, which comprises the following steps:
the high-light-transmission antifogging spray is sprayed or dripped on the surface of the transparent base material and is uniformly wiped by soft cloth, so that the high-light-transmission antifogging coating can be obtained.
Preferably, when the soft cloth is uniformly wiped on the surface of the substrate, the surface of the substrate is firstly ensured to be uniformly wiped to be in a wet state, and then the substrate is lightly wiped to be dry.
The invention has the beneficial effects that:
the high-light-transmission antifogging spray disclosed by the invention effectively improves the antifogging and light-transmission effects of the coating by using and adding the micromolecular fluoroalcohol and the anionic surfactant. As shown in fig. 2a, the antifog effect of fluoropolyether as the only antifog component when tested on hot water bath. Film-coated substrate light transmittance (substrate light transmittance for short, the same applies below): t is Glass ＝91.4％，T Organic glass =92.0% (blank substrate transmittance: T) Glass ＝90.9％，T Organic glass =91.8%, wavelength λ of incident light =550nm, the same applies below). The main reason is that the fluoropolyether is a nonionic surfactant, the hydrophilic group of the fluoropolyether is based on hydroxyl and ether bond, the hydrophilicity is weak, and a plurality of hydrophilic groups are needed to show better hydrophilicity. This is in contrast to anionic surfactants in which only one hydrophilic group exerts hydrophilicity. As shown in FIG. 2b, the antifogging effect is obtained when a hydrophilic anionic surfactant, sodium dodecyl sulfate, is introduced into the fluoropolyether system. The light transmittance of the substrate is improved to: t is Glass ＝91.5％，T Organic glass =92.8%. Mainly because the anionic surfactant can quickly enhance the hydrophilic performance of the coating, the water film on the surface of the coating is thinned, and the light transmittance of the substrate is further improved. However, when an anionic surfactant is used alone as the antifogging component, the antifogging light-transmitting effect of the coating is poor. The surface tension of the micromolecule fluoroalcohol is low, and the micromolecule fluoroalcohol can be introduced into an antifogging spray system, so that the surface tension of the solution can be obviously reduced, and the solution can be favorably spread on low surface energy substrates such as organic glass, polycarbonate and the like to form a film. In addition, the rapid evaporation of the micromolecule fluoroalcohol can promote the spray to rapidly form a film and can ensure the uniformity of the film. As shown in FIG. 2c, the small molecule fluoroalcohol effectively eliminates the water wave phenomenon on the coating surfaceThe light transmission of the coating is enhanced. Substrate light transmittance: t is Glass ＝91.7％，T Organic glass =92.4%. When the high-light-transmission antifogging coating is constructed, the synergistic relationship of the components such as the fluoropolyether, the anionic surfactant, the micromolecular fluoroalcohol and the like can be fully utilized. As shown in figure 2d, the anti-fog spray solution is prepared by the components according to a certain proportion, and the light transmittance of the obtained coating is obviously improved. Substrate light transmittance: t is Glass ＝91.6％，T Organic glass =93.0%. At the same time, to better contrast the anti-fogging effect of the coating, there is provided an optical picture of the fogging of the blank organic glass substrate surface as shown in figure 2 e.
The contact angle between the high-light-transmission antifogging coating and water is small, and the excellent hydrophilicity enables condensed water drops on the surface of the high-light-transmission antifogging coating to be spread into a thin water film, so that light scattering is eliminated, the light transmittance of an original substrate material is kept, and the antifogging effect is excellent.
The invention adopts the modes of spraying (or dripping) firstly and then wiping, and the antifogging spray is uniformly coated on the surface of the transparent substrate to construct the high-light-transmission antifogging coating. Has the advantages of simple operation, convenient construction and rapid film formation.
The antifog spray system used in the present invention is a water or alcohol system. The anti-fog spray, the anti-fog coating and the preparation method are environment-friendly and accord with the environmental protection concept.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram showing the transmittance of a substrate coated with the high-transmittance anti-fog coating of the invention, wherein FIG. 1a is a glass substrate; figure 1b is a plexiglass substrate.
Fig. 2 is a comparison graph of antifogging and light-transmitting effects of high-light-transmitting antifogging coatings with different component ratios on an organic glass substrate on a hot water bath. Wherein (a) FS-3100 (0.1 g)/isopropanol (3.0 g)/deionized water (7.0 g); (b) FS-3100 (0.2 g)/sodium dodecylsulfonate (0.02 g)/isopropanol (2.0 g)/deionized water (8.0 g); (c) FS-3100 (0.1 g)/2,2,3,3-tetrafluoro-1-propanol (0.2 g)/isopropanol (2.5 g)/deionized water (7.5 g); (d) FS-3100 (0.2 g)/sodium dodecylbenzenesulfonate (0.02 g)/2,2,3,3-tetrafluoro-1-propanol (0.2 g)/isopropanol (2.5 g)/deionized water (7.5 g); (e) a blank substrate.
Detailed Description
The present invention is further illustrated by the following specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Example 1
The glass slide is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.01g of fluoropolyether (DuPont Capstone FS-3100), 0.01g of sodium dodecyl benzene sulfonate, 2.0g of isopropanol, 8.0g of deionized water, 2, 3-tetrafluoro-1-propanol 0.1g. Firstly, putting the raw materials into a reactor in sequence for mixing, wherein the stirring time is 20 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; and finally, wiping the surface of the substrate by using attached soft cloth to ensure that the surface of the substrate is wiped to a wet state, and then slightly wiping the substrate. UV-vis detection of light transmittance T of the coated substrate Glass ＝91.2％(λ＝550nm，T Blank glass =91.0%, the same applies below), see fig. 1a. Antifogging grade: and (4) level 1.
Example 2
The glass slide is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.05g of fluorine-containing polyether (DuPont Capstone FS-3100), 0.02g of sodium dodecyl benzene sulfonate, 2.5g of isopropanol, 7.5g of deionized water, and 0.2g of 2, 3-tetrafluoro-1-propanol. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 micrometers; then, spraying the spraying agent on the surface of the substrate; and finally, wiping the surface of the substrate by using attached soft cloth to ensure that the surface of the substrate is wiped to a wet state, and then slightly wiping the substrate. UV-vis detection of light transmittance T of the coated substrate Glass =91.5%, see fig. 1a. Antifogging grade: and (4) level 1.
Example 3
Using glass slide as coatingA layer of substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.2g of fluoropolyether (DuPont Capstone FS-3100), 0.03g of sodium dodecylbenzenesulfonate, 3.0g of isopropanol, 7.0g of deionized water, and 0.3g of 2, 3-tetrafluoro-1-propanol. Firstly, putting the raw materials into a reactor in sequence for mixing, wherein the stirring time is 25 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. UV-vis detection of light transmittance T of the coated substrate Glass 91.3%, see fig. 1a. Antifogging grade: and (4) level 1.
Example 4
The glass slide is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.5g of fluoropolyether (DuPont Capstone FS-3100), 0.04g of sodium dodecyl benzene sulfonate, 4.0g of isopropanol, 6.0g of deionized water, 2, 3-tetrafluoro-1-propanol 0.4g. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then spraying the spraying agent on the surface of the substrate; and finally, wiping the surface of the substrate by using attached soft cloth to ensure that the surface of the substrate is wiped to a wet state, and then slightly wiping the substrate. UV-vis detection of light transmittance T of the coated substrate Glass =91.0%, see fig. 1a. Antifogging grade: and (5) level 1. After the transparent organic glass plate is coated with the spray under the conditions of 35 ℃ and 80% relative humidity, the substrate is anti-fog aged for more than 24 hours.
Example 5
The glass slide is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.2g of fluoropolyether (DuPont Capstone FS-3100), 0.01g of sodium dodecyl benzene sulfonate, 2.0g of isopropanol, 8.0g of deionized water, 2, 3-tetrafluoro-1-propanol 0.2g. Firstly, putting the raw materials into a reactor in sequence for mixing, wherein the stirring time is 25 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 micrometers; then, spraying the spray onA substrate surface; and finally, wiping the surface of the substrate by using attached soft cloth to ensure that the surface of the substrate is wiped to a wet state, and then slightly wiping the substrate. UV-vis detection of light transmittance T of the coated substrate Glass =91.2%, see fig. 1a. Antifogging grade: and (5) level 1.
Example 6
The glass slide is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.4g of fluoropolyether (DuPont Capstone FS-3100), 0.02g of sodium dodecylbenzenesulfonate, 3.0g of isopropanol, 7.0g of deionized water, and 0.3g of 2, 3-tetrafluoro-1-propanol. Firstly, putting the raw materials into a reactor in sequence for mixing, wherein the stirring time is 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. UV-vis detection of light transmittance T of the coated substrate Glass =91.4%, see fig. 1a. Antifogging rating: and (4) level 1.
Example 7
Organic glass sheet is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.1g of fluorine-containing polyether (DuPont Capsule FS-3100), 0.02g of sodium dodecyl benzene sulfonate, 2.0g of ethanol, 8.0g of deionized water, and 0.2g of 2, 3-tetrafluoro-1-propanol. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. UV-vis detection of light transmittance T of the coated substrate Organic glass ＝92.2％，(λ＝550nm，T Blank organic glass =92.4%, the same applies below), see fig. 1b. Antifogging grade: and (4) level 1.
Example 8
Organic glass sheet is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.3g of fluoropolyether (DuPont Capsule FS-3100), sodium dodecylbenzenesulfonate0.03g, 3.0g of ethanol, 7.0g of deionized water, and 0.3g of 2, 3-tetrafluoro-1-propanol. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 micrometers; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. UV-vis detection of light transmittance T of the coated substrate Organic glass =92.7%, see fig. 1b. Antifogging grade: and (4) level 1.
Example 9
Organic glass sheet is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.2g of fluoropolyether (DuPont Capstone FS-3100), 0.02g of sodium dodecyl benzene sulfonate, 2.0g of ethanol, 8.0g of deionized water, 2, 3-tetrafluoro-1-propanol 0.2g. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. UV-vis detection of light transmittance T of the coated substrate Organic glass =92.5%, see fig. 1b. Antifogging grade: and (4) level 1.
Example 10
Organic glass sheet is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.05g of fluoropolyether (DuPont Capstone FS-3100), 0.01g of sodium dodecyl sulfate, 3.0g of ethanol, 7.0g of deionized water, and 0.3g of 2, 3-tetrafluoro-1-propanol. Firstly, putting the raw materials into a reactor in sequence for mixing, wherein the stirring time is 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. UV-vis detection of the light transmittance of the coated substrate as T Organic glass =92.5%, see fig. 1b. Antifogging grade: and (5) level 1.
Example 11
Organic glass sheet is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.1g of fluoropolyether (DuPont Capstone FS-3100), 0.02g of sodium dodecyl sulfate, 2.0g of ethylene glycol, 8.0g of deionized water, 2, 3-tetrafluoro-1-propanol 0.3g. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. UV-vis detection of light transmittance T of the coated substrate Organic glass =92.8%, see fig. 1b. Antifogging grade: and (5) level 1.
Example 12
Organic glass sheet is used as a coating substrate material. The antifogging spray comprises the following raw materials in parts by mass: 0.3g of fluoropolyether (DuPont Capstone FS-3100), 0.03g of sodium dodecyl sulfate, 4.0g of ethylene glycol, 6.0g of deionized water, 2, 3-tetrafluoro-1-propanol 0.4g. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. UV-vis detection of light transmittance T of the coated substrate Organic glass =91.9%, see fig. 1b. Antifogging grade: and (4) level 1.
Example 13
Glass and organic glass sheets are used as coating substrate materials. The antifogging spray comprises the following raw materials in parts by mass: 0.15g of fluoropolyether (DuPont Capstone FS-3100), 0.02g of sodium dodecyl sulfate, 0.2g of 1, 1-trifluoro isopropanol, 2.5g of ethanol and 7.5g of deionized water. Firstly, putting the raw materials into a reactor in sequence for mixing, wherein the stirring time is 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 micrometers; spraying the spray on the substrateA surface; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. The UV-vis detection of the light transmittance of the coated substrate is as follows: t is a unit of Glass ＝92.3％，T Organic glass ＝92.5％(λ＝550nm，T Blank glass ＝90.9％，T Blank organic glass =91.8%, the same applies below). Antifogging grade: and (4) level 1.
Example 14
Glass and organic glass sheets are used as coating substrate materials. The antifogging spray comprises the following raw materials in parts by mass: 0.2g of fluorine-containing polyether (DuPont Capstone FS-3100), 0.02g of sodium dodecyl benzene sulfonate, 0.2g of 2, 3-tetrafluoro-1-propanol, 2.5g of isopropanol, 7.5g of deionized water, and 0.005g of 2-methyl-4-isothiazolin-3-one (antibacterial agent). Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. The transmittance of the coated substrate measured by UV-vis is: t is Glass ＝91.6％，T Organic glass =93.0%. Antifogging grade: and (4) level 1.
Example 15
Glass and organic glass sheets are used as coating substrate materials. The antifogging spray comprises the following raw materials in parts by mass: 0.1g of fluoropolyether (DuPont Capstone FS-3100), 0.02g of sodium dodecyl sulfate, 0.2g of 2, 3-tetrafluoro-1-propanol, 2.5g of isopropanol and 7.5g of deionized water. Firstly, putting the raw materials into a reactor in sequence for mixing, wherein the stirring time is 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. The transmittance of the coated substrate measured by UV-vis is: t is Glass ＝91.7％，T Organic glass =92.2%. Antifogging grade: and (4) level 1.
Example 16
Glass and organic glass sheets are used as coating substrate materials. The antifogging spray comprises the following raw materials in parts by mass: 0.1g of fluorine-containing polyether (DuPont Capstone FS-3100), 0.02g of sodium dodecyl sulfate, 0.1g of 2, 3-tetrafluoro-1-propanol, 2.0g of isopropanol and 8.0g of deionized water. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth to ensure that the surface of the substrate is wiped to be in a wet state, and then the substrate is lightly wiped to be dry. The transmittance of the coated substrate measured by UV-vis is: t is Glass ＝91.5％，T Organic glass =92.6%. Antifogging grade: and (5) level 1.
Example 17
Glass and organic glass sheets are used as coating substrate materials. The antifogging spray comprises the following raw materials in parts by mass: 0.9g of fluoropolyether (DuPont Capstone FS-3100), 0.1g of sodium dodecyl benzene sulfonate, 0.8g of 3, 3-trifluoro-1-propanol, 8.0g of ethanol and 2.0g of deionized water. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the substrate surface was wiped with a cotton cloth attached. The transmittance of the coated substrate measured by UV-vis is: t is Glass ＝90.8％，T Organic glass =90.3%. Antifogging rating: and (4) level 1.
Example 18
Glass and organic glass sheets are used as coating substrate materials. The antifogging spray comprises the following raw materials in parts by mass: 0.1g of fluoropolyether (DuPont Capsule FS-3100), 0.02g of sodium dodecyl benzene sulfonate, 0.1g of 1, 1-trifluoro-2-propanol, 3.0g of isopropanol and 7.0g of water. Firstly, putting the raw materials into a reactor in sequence for mixing for 30 minutes; secondly, putting the filtered mixed solution into a sprayer, wherein the aperture of a used filter element is less than or equal to 5 microns; then, spraying the spraying agent on the surface of the substrate; finally, the surface of the substrate is wiped by a soft cloth attached to the substrate to ensure the surface of the substrateAll were wiped to a wet state and then gently wiped dry. The transmittance of the coated substrate measured by UV-vis is: t is Glass ＝91.5％，T Organic glass =92.7%. Antifogging rating: and (4) level 1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The high-light-transmission antifogging spray is characterized by comprising the following components in percentage by mass: 0.01 to 1.0g of fluorine-containing polyether, 0.01 to 1.0g of micromolecule fluoroalcohol, 0.01 to 1.0g of anionic surfactant, 0.5 to 9.5g of micromolecule alcohol and 0.5 to 9.5g of deionized water.
2. The high-light-transmission antifogging spray according to claim 1, further comprising the following components in percentage by mass: 0.005-0.1 g of an antibacterial agent.
3. The high light transmission antifog spray according to claim 1, wherein the fluoropolyether is composed of two or more blocks; wherein, at least one fluorine-containing block is an alkane chain segment, an aromatic hydrocarbon chain segment or a combined chain segment of alkane and aromatic hydrocarbon after hydrogen atoms are partially replaced by fluorine atoms; and at least one polyether block, wherein the polyether block is a polyoxyethylene ether chain segment or a combination chain segment of polyoxyethylene ether and polyoxypropylene ether.
4. The high-light-transmission antifogging spray according to claim 1, wherein the fluoropolyether is hydroxyl-terminated fluoropolyether or methyl-terminated fluoropolyether, and the structural formula of the fluoropolyether is as follows:
in the structural formula of the hydroxyl-terminated fluorine-containing polyether, n = 4-12; m =4 to 20;
in the structural formula of the methyl-terminated fluorine-containing polyether, n = 4-12; m =4 to 20.
5. The high-transmittance antifogging spray agent as claimed in claim 1, wherein the small molecule fluoroalcohol is a fluoroalcohol soluble in water, methanol, ethanol, isopropanol or ethylene glycol solvent;
the anionic surfactant is an anionic surfactant which can be dissolved in water, methanol, ethanol, isopropanol or glycol solvent;
the small molecular alcohol exists in a liquid state within the range of minus 30 ℃ to plus 30 ℃.
6. The high light transmittance anti-fog spray according to claim 2, wherein the antibacterial agent is an antibacterial agent dissolved in water or small molecular alcohol.
7. A method for preparing the high light transmittance anti-fog spray of 1,3,4 or 5, comprising the steps of:
weighing the fluoropolyether, the micromolecule fluoroalcohol, the anionic surfactant, the micromolecule alcohol and the deionized water according to the mass parts, adding the mixture into a reactor, uniformly stirring, and filtering the mixture to obtain the high-light-transmittance antifogging spray.
8. The preparation method of the high-light-transmission antifogging spray according to claim 7, characterized in that the following components are further added in parts by mass: 0.005-0.1 g of antibacterial agent.
9. A high-light-transmission antifogging coating material is an antifogging coating attached to the surface of a transparent substrate; characterized in that the antifogging coating is obtained by coating the high-light-transmission antifogging spray agent in any one of claims 1 to 6.
10. A method for preparing the high-light-transmission antifogging coating of claim 9, characterized by comprising the following steps:
the high-light-transmission antifogging spray of any one of claims 1 to 6 is sprayed or dripped on the surface of the transparent substrate, and is uniformly wiped by a soft cloth, so that the high-light-transmission antifogging coating can be obtained.
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| JP2012077262A (en) * | 2010-10-06 | 2012-04-19 | Mitsubishi Plastics Inc | Anti-fogging composition, anti-fogging resin sheet, and container |
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| US5149564A (en) * | 1990-03-16 | 1992-09-22 | Hitachi, Ltd. | Method of forming lubricating film and a method of preparing magnetic recording medium |
| JPH0720411A (en) * | 1993-07-03 | 1995-01-24 | Sofuto 99 Corp:Kk | Antifogging agent of spectacle lens |
| US20060144285A1 (en) * | 2004-12-30 | 2006-07-06 | Honeywell International, Inc. | Fluorine-containing coatings |
| JP2008115360A (en) * | 2006-10-10 | 2008-05-22 | Daicel Polymer Ltd | Anti-fogging surface-treating agent and anti-fogging resin sheet |
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