KR102605908B1 - Eco-friendly optical coating material composition for functional restoration for low soiling and high transmission - Google Patents

Abstract

The present invention includes 1 to 30 wt% of a silane binder containing alkoxy silane as a binder, based on 100 wt% of an eco-friendly optical coating material composition for functional restoration for low contamination and high transmittance; 0.05 to 20% by weight of a hydrocondensate of the alkoxy silane and the fluorine-based alkoxy silane; 50 to 95% by weight of low boiling point solvent; High boiling point solvent 0.01~30% by weight; Disclosed is an eco-friendly optical coating material composition for restoring function for low contamination and high permeability, comprising 0.05 to 5% by weight of a catalyst.

Description

Eco-friendly optical coating material composition for functional restoration for low contamination and high transmission {ECO-FRIENDLY OPTICAL COATING MATERIAL COMPOSITION FOR FUNCTIONAL RESTORATION FOR LOW SOILING AND HIGH TRANSMISSION}

The present invention relates to an eco-friendly optical coating material composition for functional restoration for low contamination and high transmission. Specifically, it increases the efficiency of optical properties by lowering the refractive index and reflectance of the protective substrate that protects the solar cells of the solar cell module, and increases the efficiency of the protective substrate. AR (Anti Reflective)-ASS (Anti Static & Soiling) composite to form a coating film on the protective substrate of a solar cell module to provide anti-static function and anti-fouling properties against static electricity generated in the solar cell module. It relates to an (integrated) functional optical coating composition.

Information on the research and development project that supported this invention is as follows.
[Assignment identification number] P20230039
[Ministry name] Gyeonggi-do
[Research management agency] Gyeonggi Province Economic and Science Promotion Agency
[Research project name] General business-led
[Research project title] Development of eco-friendly optical materials and process technology for on-site restoration to improve contamination resistance and functionality of solar modules
[Contribution rate] 100%
[Host research institute] Ressol Co., Ltd.
[Research period] 2023. 8. 1.~2024. 7. 31.
Climate change is emerging as the biggest issue in all countries around the world, and the Green New Deal policy, which increases employment and investment while converting the current fossil energy-centered energy policy to a low-carbon economic structure, such as switching to new and renewable energy, is aimed at reducing carbon emissions by 2050. The goal is ‘carbon neutral’, reducing carbon emissions to ‘zero’. However, Korea has the lowest share of renewable energy generation among OECD countries at 8.3%, and the proportion of coal-fired power plants is still high, so carbon neutrality is a long way off.

In addition, as environmental problems have recently increased, hydroelectric power generation, wind power generation, and solar power generation are receiving attention as green energy. Among them, various studies are being conducted on solar power generation using solar energy as a clean and useful energy source for preventing global warming.

Photovoltaic power generation (PV, Photovoltaic) is a power generation method that converts light energy into electrical energy using solar cells that generate electricity through the photoelectric effect, and includes elements such as solar cell modules, PCS (power conversion equipment), and power storage devices. It consists of

Solar cell modules using semiconductors such as single-crystalline silicon, polycrystalline silicon, and amorphous silicon use solar cell elements such as silicon, gallium-arsenide, copper-indium-selenium, etc. with an upper transparent protective material (upper protection substrate) and a lower substrate protective material (lower protection). It is prepared by protecting the solar cell element and the protective substrate with an adhesive.

At this time, the upper protective substrate (hereinafter referred to as 'solar panel') in solar cell modules is typically made of glass, but glass has the disadvantage of lowering the power generation efficiency of the solar cell module because it reflects sunlight. As a countermeasure, there have been attempts to apply anti-reflection films to solar panels, but conventional anti-reflection films have poor anti-reflection properties and have the problem of lowering power generation efficiency.

In addition, solar cell modules suffer from electrostatic discharge (ESD) generated from solar panels and the soiling phenomenon, which is polluted by foreign substances (sand, dust, bird droppings, etc.) from the external environment, resulting in lower light transmittance. This is causing a decrease in power generation. Accordingly, according to the International Energy Agency, the decrease in light transmittance due to solar panel pollution is reported to cause an average daily output loss of about 0.47%.

Domestic waste module generation is expected to increase exponentially, starting with 9,665 tons in 2023, 17,531 tons in 2030, and 115,250 tons in 2050. However, commercialization technology for recycling waste module materials is in the development stage, and even if recycled, it is limited to dismantling waste solar modules to recover and separate some useful metals, and most of them are disposed of in landfills, resulting in economical problems such as increased landfill costs. It not only causes losses but also has a negative impact on the environment.

In order to solve the problem of reduced light transmittance and waste modules caused by solar panel contamination, a cleaning service that removes contamination (soiling) of solar panels is being implemented.

However, the cleaning service causes secondary problems such as reduced power generation efficiency and shortened lifespan of the solar panel due to surface scratch damage and increased reflectivity of the solar panel during the cleaning process.

It is known that due to the cleaning service, solar panels generally reduce power generation by 0.3 to 0.8% per year.

In this regard, manufacturers guarantee solar panel efficiency of 80% for 25 years, but according to the results of testing the estimated output loss of solar panels after cleaning service, the reflectance of solar panels before cleaning service is approximately It was 4.4~5.8%, but after 500 cleaning services, the reflectance of solar panels increases to about 7.1~7.7%.

Due to the decrease in power generation efficiency of solar cell modules due to the increase in reflectivity of solar panels, the lifespan of solar cell modules that undergo periodic cleaning service work is being shortened to less than 10 to 20 years.

Republic of Korea Registration No. 10-2171739

The present invention was devised to solve the above problems, and the purpose of the present invention is to provide an eco-friendly optical coating material composition for restoring function for low pollution and high transmission, which can reduce the refractive index and reflectance of solar panels. will be.

Another object of the present invention is to provide an eco-friendly optical coating material composition for functional restoration for low contamination and high permeability that can increase the anti-static function against electrostatic discharge (ESD) generated in solar panels. will be.

Another object of the present invention is to provide an eco-friendly optical coating material composition for functional restoration for low contamination and high permeability that can maximize contamination resistance and increase antifouling properties against contaminants that may arise from the external environment. It was done.

The present invention is intended to contribute to the establishment of a green industry innovation ecosystem through revitalization of the sustainable new and renewable energy industry and resource utilization through new energy industry innovative material technology that can increase energy efficiency.

The present invention is intended to provide an energy efficiency method to prevent a decrease in energy efficiency by fundamentally preventing or minimizing contamination adhesion.

The shortened lifespan of solar power modules (10 to 15 years in Korea, 25 years in Germany, 30 years in the US) is an economic problem due to the high unit cost of solar power generation (according to Bulumberg NEF, the cost of solar power generation in Korea in 2020 is $106 per MWh, compared to $44 in the US). , twice higher than China's $33), the present invention reduces the power generation cost by extending the efficiency and lifespan of solar power generation, and additionally reduces the amount of solar waste generated and treatment costs (according to the Ministry of Environment, by 2023) This is to contribute to establishing a green process (Ecological and Economical, E2) that reduces the amount of solar waste generated (approximately 9,665 tons, recycling price 727 won/kg, recovery price 94 won/kg).

In order to achieve the above object, the present invention includes 1 to 30 wt% of a silane binder, based on 100 wt% of an eco-friendly optical coating material composition for functional restoration for low contamination and high permeability; 0.05 to 20% by weight of hydrocondensate of alkoxy silane and fluorinated alkoxy silane; 50 to 95% by weight of low boiling point solvent; High boiling point solvent 0.01~30% by weight; Disclosed is an eco-friendly optical coating material composition for restoring function for low contamination and high permeability, comprising 0.05 to 5% by weight of an acidic catalyst.

The silane binder may be made of alkoxy silane.

At this time, the alkoxy silane and the fluorine-based alkoxy silane may be mixed and reacted so that the weight ratio is 50:50 to 99:1.

In addition, the alkoxy silanes include tetraethoxyorthosilicate (TEOS), tetramethoxyorthosilicate (TMOS), methyltrimethoxysilane (MTMS), and methyltriethoxysilane (MTES). It may be one or more types selected from the group consisting of.

In addition, the fluorine-based alkoxy silanes include trifluoropropyltrimethoxysilane, perfluorooctyltriethoxysilane (1H, 1H, 2H, 2HPerfluorooctyltriethoxysilane), and heptadecafluorodecyltrimethoxysilane (Trimethoxy ( It may be one or more types selected from the group consisting of 1H, 1H, 2H, 2Hheptadecafluorodecyl)silane) and heptadecafluorodecyltriisopropoxysilane.

Additionally, the low boiling point solvent may be one or more selected from the group consisting of methyl alcohol, ethyl alcohol, and isopropyl alcohol.

In addition, the high boiling point solvent is propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, butyl alcohol, lauryl alcohol, nonyl alcohol, undecyl alcohol, diaceto alcohol, methyl cellosolve, ethyl cellosolve, butyl It may be one or more types selected from the group consisting of cellosolve, hexyl cellosolve, and dodecane.

In addition, the catalyst may be one or more inorganic acids selected from phosphoric acid, hydrofluoric acid, nitric acid, hydrochloric acid, sulfuric acid, etc., or one or more organic acids selected from acetic acid, formic acid, citric acid, oxalic acid, dibutyltin dilaurate, etc., or any of the above. It may be used by mixing one or more organic acids and one or more of the above inorganic acids.

Additionally, the silane binder may include an alkoxy silane.

Additionally, the silane binder may be a mixture of 46% by weight of ethyl alcohol, 10% by weight of tetraethoxysilane, 8% by weight of water, and 0.05% by weight of hydrochloric acid.

In addition, the fluorine-based alkoxy silane may be 0.05% by weight to 20% by weight based on the total weight% of silane.

As another example to achieve the above object, in the manufacturing method of an eco-friendly optical coating material composition for functional restoration for low contamination and high permeability, the hydrocondensate of the alkoxy silane and the fluorinated alkoxy silane is formed through a sol-gel reaction. Disclosed is a method for manufacturing an eco-friendly optical coating material composition for restoring function for low contamination and high permeability, which is characterized in that it is oligomerized and then mixed.

At this time, the sol-gel reaction is a composition containing the alkoxy silane, the fluorine-based alkoxy silane, the catalyst, water and an organic solvent, the reaction temperature is 30 ℃ or more and 80 ℃ or less, and the reaction time is 3 hours or more and 5 hours or less. You can.

The effects of the present invention obtained through the above-described solution are as follows.

First, the present invention has the effect of increasing the efficiency of optical properties (transmittance, haze, etc.) by forming a single layer of coating film on the surface of the solar panel and lowering the refractive index and reflectance.

Second, the present invention forms a single layer of coating film on the surface of the solar panel, thereby increasing the antistatic function against static electricity and the antifouling property against pollutants, thereby minimizing the adsorption of pollutants to the solar panel. Even if pollutants are absorbed into the solar panel, they can be easily removed.

Furthermore, the present invention can improve the power generation efficiency of solar cell modules without reducing light transmittance due to interference from pollutants even when used for a long time.

Third, the present invention forms a single layer coating film on the surface of the solar panel, resulting in excellent contamination durability and weather resistance.

In particular, the present invention is environmentally friendly because it extends the lifespan and reuses and recycles old modules that have reached the end of their lifespan by directly restoring their functions at the installed site rather than dismantling or discarding them.

Figure 1 is a graph showing the improvement in transmittance of sample glass according to the use of the composite functional optical coating material composition according to the first and second embodiments of the present invention.
Figure 2 is a diagram showing an improved contact angle of a glass specimen due to the use of a composite functional optical coating material composition according to the first embodiment of the present invention.
Figure 3 is a photograph showing that the penzium property according to the use of the composite functional coating material composition according to the first embodiment of the present invention is excellent compared to the specimen glass.

Hereinafter, an eco-friendly optical coating material composition for functional restoration for low pollution and high transmission and its manufacturing method will be described in more detail with reference to the drawings.

In describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted.

The attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes, equivalents, and changes included in the spirit and technical scope of the present invention are not limited. It should be understood to include water or substitutes.

In the following description, singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention are divided into first to third embodiments, and with reference to the attached FIGS. 1 to 3, an eco-friendly optical coating material composition for restoring function for low contamination and high transmission (hereinafter referred to as 'coating') (referred to as ‘material composition’) will be explained.

The coating material composition includes a silane binder, a hydrocondensate of fluorinated alkoxy silane, a silane binder, a low boiling point solvent, a high boiling point solvent, and a catalyst.

The coating material composition according to an embodiment of the present invention includes 1 to 30% by weight of silane binder, 0.05 to 20% by weight of hydrocondensate of alkoxy silane and fluorinated alkoxy silane, 50 to 95% by weight of low boiling point solvent, and 0.01 to 30% by weight of high boiling point solvent. It is characterized by containing 0.05% to 5% by weight of an acidic catalyst.

The present invention is intended to implement basic mechanical properties by using alkoxy silane as a binder. The silane binder for providing the strength of a coating film that can be applied to the surface of a solar panel includes tetra-functional silane-based compounds, tri-functional silane-based compounds, etc. desirable.

Additionally, the preferred content of the alkoxy silane binder is 1 to 30% by weight. If the content of alkoxy silane is less than 1% by weight, the hardness of the coating film cannot be maintained, and if it exceeds 30% by weight, the mechanical properties of the coating film are improved, but the function of the fluorine oligomer mixed in the final coating material composition is reduced, leading to contamination. This may reduce its prevention role.

The alkoxy silane is a group consisting of tetraethoxyorthosilicate (TEOS), tetramethoxyorthosilicate (TMOS), methyltrimethoxysilane (MTMS), and methyltriethoxysilane (MTES). One or more types selected from can be used.

The present invention is applied to the surface of solar panels and adopts fluorine-based alkoxy silane to provide low-reflection function, anti-fouling and anti-static functions, and the coating film containing a certain amount of fluorine-based alkoxy silane has a water droplet contact angle of 110° or more. It exhibits basic water-repellent properties and also improves contamination resistance against contamination such as fingerprints and dust.

In the coating material composition according to an embodiment of the present invention, the hydrocondensate of an alkoxy silane and a fluorinated alkoxy silane is preferably prepared through a sol-gel reaction. The hydrocondensate maintains appropriate hardness, improves the anti-reflection effect of the solar panel surface, and easily prevents contamination of the coating film with dust and organic substances, so that the weight ratio of the alkoxy silane: fluorinated alkoxy silane is 50:50 to 50:50. It is preferable to carry out the reaction by mixing at a ratio of 99:1, but it is not limited thereto.

The sol-gel reaction may use a method commonly used in the relevant technical field, and is preferably a composition containing alkoxy silane, fluorinated alkoxy silane, catalyst, water, and organic solvent, and the reaction temperature is 30°C to 80°C. It is preferable to react for 3 to 5 hours, but is not limited thereto.

In the hydrocondensate of alkoxy silane and fluorine-based alkoxy silane, alkoxy silane includes tetraethoxyorthosilicate (TEOS), tetramethoxyorthosilicate (TMOS), methyltrimethoxysilane (MTMS), and One or more types selected from the group consisting of methyltriethoxysilane (MTES) may be used.

In addition, in the present invention, the fluorine-based alkoxy silane is preferably oligomerized using a sol-gel method and then mixed to provide stable compatibility with the binder, but is not limited thereto. The fluorine-based alkoxy silane is preferably 0.05% to 20% by weight based on the total silane. If the fluorine-based alkoxy silane is less than 0.05% by weight of the total silane, it is difficult to secure the fouling resistance of the coating film, and if it exceeds 20% by weight, the strength of the coating film may decrease. At this time, the total silane refers to the weight of the silane binder, the weight of the alkoxy silane, and the weight of the fluorine-based alkoxy silane.

The fluorine-based alkoxy silanes include trifluoropropyltrimethoxysilane, perfluorooctyltriethoxysilane (1H,1H,2H,2H-Perfluorooctyltriethoxysilane), and heptadecafluorodecyltrimethoxysilane (Trimethoxy(1H). , 1H, 2H, 2H-heptadecafluorodecyl)silane) and heptadecafluorodecyltriisopropoxysilane. One or more types selected from the group consisting of may be used.

In the coating material composition according to a preferred embodiment of the present invention, the low boiling point solvent provides compatibility between materials mixed in the coating solution and dries quickly when forming a coating film, thereby enabling faster curing.

The low boiling point solvent is characterized in that it is at least one selected from the group consisting of methyl alcohol, ethyl alcohol, and isopropyl alcohol.

In the coating material composition according to a preferred embodiment of the present invention, the high boiling point solvent serves as a coolant for a stable reaction from the heat applied during the hydrocondensate reaction and ultimately serves to form a uniform coating film. The high boiling point solvent is preferably 0.01% by weight to 30% by weight based on 100% by weight of the coating material composition.

At this time, if the high boiling point solvent is less than 0.01% by weight based on 100% by weight of the coating material composition, the formation of a uniform coating film in the final coating film is reduced, and if it is more than 30% by weight, the hydrocondensate reaction is delayed and the final coating film When forming a coating film, durability may decrease due to curing.

The high boiling point solvent is propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, butyl alcohol, lauryl alcohol, nonyl alcohol, undecyl alcohol, diaceto alcohol, methyl cellosolve, ethyl cellosolve, butyl cellosolve. , hexyl cellosolve, and dodecane can be used.

The role of the catalyst is to participate in the reaction and induce the formation of functional oligomers, promote the curing of the binder, affect the viscosity by mixing with other raw materials, and ultimately lower the curing temperature by promoting the reaction when forming a coating film. there is.

Examples of catalysts that can be used in the present invention include one or more inorganic acids selected from phosphoric acid, hydrofluoric acid, nitric acid, hydrochloric acid, sulfuric acid, etc., or one or more organic acids selected from acetic acid, formic acid, citric acid, oxalic acid, dibutyltin dilaurate, etc. It is okay to use a mixture of organic acids and inorganic acids. Of course, the catalyst is not limited to those described above.

The content of the catalyst can be appropriately adjusted in consideration of the transparency of the coating film and the stability of the solution, and preferably 0.05% by weight to 5% by weight based on 100% by weight of the total coating material composition. If the added amount of the catalyst is less than 0.05% by weight, the adhesion and function as a reaction catalyst are not properly expressed, and if the added amount of the catalyst is more than 5% by weight, overreaction is induced and the viscosity of the coating material composition solution is reduced. may rise. If the viscosity of the solution increases, the coating film may become uneven and stability for long-term storage may decrease.

[Example 1]

The glass substrate for forming the coating film was washed with ethanol to remove dust and organic contaminants present on the glass substrate.

After mixing 100% by weight of ethyl alcohol (low boiling point solvent), 1% by weight of hydrochloric acid (catalyst), and 12% by weight of water, stirred for about 15 minutes to prepare solution 1 [Sol1], and added ethyl alcohol (low boiling point solvent) to another container. After mixing 176% by weight, 1% by weight of ethyl cellusolve (high boiling point solvent), 11.3% by weight of heptadecafluorodecyltrimethoxysilane (fluorinated alkoxy silane), and 20.1% by weight of tetraethoxysilane (silane binder), Solution 2 [Sol2] was prepared by stirring for about 15 minutes.

Afterwards, solution 1 [Sol1] was slowly added to solution 2 [Sol2], mixed, and subjected to sol-gel reaction at a reaction temperature of 50°C for 5 hours. After completion of the sol-gel reaction, the mixed solution of Solution 1 and Solution 2 was cooled to room temperature, and the previously prepared silane binder was mixed into the mixed solution and stirred for 1 hour to prepare the coating material according to Example 1. A composition was prepared.

The silane binder was prepared by mixing 46% by weight of ethyl alcohol, 10% by weight of tetraethoxysilane, 8% by weight of water, and 0.05% by weight of hydrochloric acid and stirring for 7 hours.

Thereafter, the coating material composition was applied to the glass substrate by spin coating to form a coating layer.

[Example 2]

After mixing 100% by weight of ethyl alcohol, 1% by weight of hydrochloric acid, and 12% by weight of water, stirred for about 15 minutes to prepare solution 1 [Sol1]. In another container, 176% by weight of ethyl alcohol, 5% by weight of ethyl cellusolve, After mixing 8% by weight of heptadecafluorodecyltrimethoxysilane and 20.1% by weight of tetramethoxysilane, the mixture was stirred for about 15 minutes to prepare Solution 2 [Sol2].

Afterwards, solution 1 [Sol1] was slowly added to solution 2 [Sol2] and mixed, and a sol-gel reaction was performed at a reaction temperature of 50°C for 3 hours. After completion of the sol-gel reaction, the mixed solution of Solution 1 and Solution 2 was cooled to room temperature, and the previously prepared silane binder was mixed and stirred for 1 hour.

The silane binder was prepared by mixing 46% by weight of ethyl alcohol, 10% by weight of tetramethoxysilane, 8% by weight of water, and 0.05% by weight of hydrochloric acid and stirring for 7 hours.

[Example 3]

It was prepared in the same manner as Example 1, except that the fluorosilane was changed to perfluoroothyldriethoxysilane.

[Comparative Example 1]

The coating material composition was prepared in the same manner as Example 1, except that fluoro-oligomers were not used when preparing the coating material composition.

[Comparative Example 2]

The coating material composition was prepared in the same manner as Example 1, except that 1 mol of methyltrimethoxysilane was used instead of fluorosilane.

[Comparative Example 3]

The coating material composition was prepared in the same manner as Example 1 except that 1 mol of octyltriethoxysilane was used instead of fluorosilane.

[Comparative Example 4]

The coating composition was prepared in the same manner as Example 1, except that 1 mol of TTIP was used instead of fluorosilane.

[Comparative Example 5]

The coating composition was prepared in the same manner as Example 1, except that 0.75 mol of TTIP was used instead of fluorosilane.

[evaluation]

The physical properties of the specimens prepared through the following examples and comparative examples were measured as follows.

1. Material: White glass (90mm x 90mm x 3.2T) was used. The transmittance of the substrate is 91.3%.

2. Coated specimen: 2 g of the coating material composition solution prepared in each Example and Comparative Example was dropped on the surface of the substrate, coated by rotating the substrate for 10 seconds at a speed of 1200 rpm using a spin coater, and heated on a 150°C hot plate for 30 seconds. A coated specimen was prepared by curing for a minute.

[Transmittance]

The transmittance of the coated specimen was measured using a transmittance meter (Lambda 1050 (Perkin Elmer)).

[Contact angle]

A liquid drop was dropped on the coated specimen, and the contact angle created by the interface between the liquid drop and the coated specimen was measured using a contact angle meter (Phoenix300, SEO).

[Hayes]

The haze of the coated specimen was measured using a Haze meter (COH-5500, Nippon Denshoku) according to the ASTM D 1003 standard.

[Penzium Castle]

After contaminating the surface of the coated specimen using oil-based name pen black (Monami), it was wiped five times using a small wiper (Yuhan Kimberly) and visually observed according to the following standards.

Good: O (Completely Cleared)

Normal: △ (a faint trace remains)

Bad: X (not erased at all)

[Dust Removal]

The surface of the coated specimen was left in the same environment for a week to become contaminated with household dust, blown with air five times using an air blower, and visually observed according to the following standards.

Good: O (completely removed)

Bad:

[Table 1]

In the case of the coated specimens manufactured through Examples 1 and 2 as shown in Table 1 above, as shown in Figure 1, it can be seen that the transmittance compared to the general glass substrate (bare glass) was improved from 91.32% to 94.34% with single-sided coating. there is.

In addition, it can be confirmed that the contact angle of the coated specimen prepared through Example 1 of the present invention was 110° or more, as shown in FIG. 2.

In addition, the penzium and dust removal properties of the coated specimen prepared through Example 1 of the present invention showed satisfactory results, as shown in FIG. 3.

On the other hand, in the case of Comparative Examples 1 to 5, as can be seen from [Table 1] , the improvement in transmittance was lower or decreased compared to Example 1 of the present invention, and the penzium property and dust removal property were not removed at all or could not be removed. You can check the results that are not working well.

The foregoing content is merely illustrative, and various modifications may be made by those skilled in the art without departing from the scope and technical spirit of the described embodiments. The above-described embodiments can be implemented individually or in any combination.

Claims (12)

About 100% by weight of an eco-friendly optical coating material composition for functional restoration for low contamination and high transmission,
1 to 30% by weight of silane binder using alkoxy silane as a binder;
0.05 to 20% by weight of a hydrocondensate of the alkoxy silane and the fluorine-based alkoxy silane;
50 to 95% by weight of a low boiling point solvent with a relatively lower boiling point than the following high boiling point solvents;
0.01 to 30% by weight of a high boiling point solvent with a relatively higher boiling point than the above low boiling point solvent; and
Contains more than 0.05% by weight but not more than 5% by weight of catalyst,
The low boiling point solvent is at least one selected from the group consisting of methyl alcohol, ethyl alcohol, and isopropyl alcohol,
The high boiling point solvent is propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, butyl alcohol, lauryl alcohol, nonyl alcohol, undecyl alcohol, diaceto alcohol, methyl cellosolve, ethyl cellosolve, butyl cellosolve. , hexyl cellosolve, and dodecane, which is one or more solvents selected from the group consisting of,
The fluorine-based alkoxy silane is,
Silane is included in an amount of 0.05% to 20% by weight based on the total weight%,
The optical coating material composition is
Preparing solution 1 containing the low boiling point solvent, the catalyst, and water;
Preparing Solution 2 by mixing the low boiling point solvent, the high boiling point solvent, and a hydrocondensate of the alkoxy silane and the fluorinated alkoxy silane;
Preparing a silane binder containing the low boiling point solvent, the alkoxy silane, the catalyst, and water;
A raw material solution preparation step of mixing the first solution and the second solution and performing a sol-gel reaction at a reaction temperature of 30°C or more and 80°C or less for 3 hours or more and 5 hours or less to obtain a raw material solution; and
A coating material composition manufacturing step of preparing a final composition by adding the silane binder to the raw material solution;
Manufactured by a method for producing an optical coating material composition containing
Eco-friendly optical coating material composition for functional restoration for low contamination and high transmission. According to paragraph 1,
Characterized in that the alkoxy silane and the fluorinated alkoxy silane are mixed and reacted so that the weight ratio is 50:50 to 99:1.
Eco-friendly optical coating material composition for functional restoration for low contamination and high transmission. According to paragraph 1,
The alkoxy silane is,
At least one from the group consisting of tetraethoxyorthosilicate (TEOS), tetramethoxyorthosilicate (TMOS), methyltrimethoxysilane (MTMS), and methyltriethoxysilane (MTES) Characterized by,
Eco-friendly optical coating material composition for functional restoration for low contamination and high transmission. According to paragraph 1,
The fluorine-based alkoxy silane is,
Trifluoropropyltrimethoxysilane, Perfluorooctyltriethoxysilane (1H, 1H, 2H, 2HPerfluorooctyltriethoxysilane), Heptadecafluorodecyltrimethoxysilane (Trimethoxy(1H, 1H, 2H, 2Hheptadecafluorodecyl) silane) and heptadecafluorodecyltriisopropoxysilane
Characterized by one or more types from the group consisting of,
Eco-friendly optical coating material composition for functional restoration for low contamination and high transmission. delete According to paragraph 1,
The high boiling point solvent is characterized in that 0.01% by weight to 30% by weight based on 100% by weight of the eco-friendly optical coating material composition for restoring function for low contamination and high transmission.
Eco-friendly optical coating material composition for functional restoration for low contamination and high transmission. delete According to paragraph 1,
The catalyst is,
One or more inorganic acids selected from phosphoric acid, hydrofluoric acid, nitric acid, hydrochloric acid, sulfuric acid, etc., or one or more organic acids selected from acetic acid, formic acid, citric acid, oxalic acid, dibutyltin dilaurate, etc., or one or more organic acids and any of the above. Characterized by using a mixture of one or more inorganic acids,
Eco-friendly optical coating material composition for functional restoration for low contamination and high transmission. According to paragraph 1,
The silane binder is,
Characterized by a mixture of 46% by weight of ethyl alcohol, 10% by weight of tetraethoxysilane, 8% by weight of water, and 0.05% by weight of hydrochloric acid.
Eco-friendly optical coating material composition for functional restoration for low contamination and high transmission. delete In the manufacturing method of an eco-friendly optical coating material composition for functional restoration for low contamination and high transmission,
With respect to 100% by weight of the optical coating material composition,
1 to 30% by weight of silane binder using alkoxy silane as a binder;
0.05 to 20% by weight of a hydrocondensate of the alkoxy silane and the fluorine-based alkoxy silane;
50 to 95% by weight of a low boiling point solvent with a relatively lower boiling point than the following high boiling point solvents;
0.01 to 30% by weight of a high boiling point solvent with a relatively higher boiling point than the above low boiling point solvent; and
Contains more than 0.05% by weight but not more than 5% by weight of catalyst,
The low boiling point solvent is at least one selected from the group consisting of methyl alcohol, ethyl alcohol, and isopropyl alcohol,
The high boiling point solvent is propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, butyl alcohol, lauryl alcohol, nonyl alcohol, undecyl alcohol, diaceto alcohol, methyl cellosolve, ethyl cellosolve, butyl cellosolve. , hexyl cellosolve, and dodecane, which is one or more solvents selected from the group consisting of,
The fluorine-based alkoxy silane is,
It is manufactured from an optical coating material composition containing 0.05% by weight to 20% by weight based on the total weight% of silane,
Preparing solution 1 containing the low boiling point solvent, the catalyst, and water;
Preparing Solution 2 by mixing the low boiling point solvent, the high boiling point solvent, and a hydrocondensate of the alkoxy silane and the fluorinated alkoxy silane;
Preparing a silane binder containing the low boiling point solvent, the alkoxy silane, the catalyst, and water;
A raw material solution preparation step of mixing the first solution and the second solution and performing a sol-gel reaction at a reaction temperature of 30°C or more and 80°C or less for 3 hours or more and 5 hours or less to obtain a raw material solution; and
A coating material composition manufacturing step of preparing a final composition by adding the silane binder to the raw material solution;
Characterized in that it includes,
Method for manufacturing an eco-friendly optical coating material composition for functional restoration for low contamination and high transmission.
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