KR102068927B1 - Paint composition for ship and aircraft using yellow soil - Google Patents

Abstract

The present invention relates to a paint composition for ships and aircraft using loess and a production method thereof. The paint composition consists of a mixture of 30 to 50 wt% of loess, 20 to 35 wt% of a composite resin, 5 to 15 wt% of a pigment, 15 to 25 wt% of a solvent, and 1 to 15 wt% of other additives with respect to the total weight of the paint composition, wherein the other additives consist of a mixture of 30 to 80 wt% of a thickener, 20 to 40 wt% of a curing accelerating agent, and 20 to 70 wt% of a leveling agent with respect to the total weight of the other additives.

Description

Paint composition for ship and aircraft using loess {PAINT COMPOSITION FOR SHIP AND AIRCRAFT USING YELLOW SOIL}

The present invention relates to a coating composition for ships and aircraft using ocher and a method for manufacturing the same, and more particularly, to include the loess in the coating composition for ships and aircraft to protect against oxidation and corrosion due to exposure of salt and water. At the same time, it can provide antimicrobial and bactericidal effect and air purification effect, which is eco-friendly, absorbs moisture and releases moisture when it is dry, which can help maintain pleasant temperature throughout the four seasons. A coating composition and a method for producing the same.

Ships are exposed to oxidation and corrosion because they operate for long periods of time in salty seas with strong sunlight, and aircraft are exposed to more intense ultraviolet light than ground because they fly at high altitudes for long periods of time and are exposed to harsh weather conditions such as rain and snow. do. In this case, in order to prevent oxidation and corrosion of the ship and the aircraft, and to prevent wear due to physical friction and to improve durability, a process of coating the surface of the ship and the aircraft is required.

Such coating can be carried out by applying the paint to the surface, and the coating can be applied when not only physical protection but also emphasis is placed on the camouflage when used for military purposes, or the identity indicating ownership of ships and aircraft.

At this time, Korean Patent No. 10-0595382 (name of the invention: ocher paint composition for building materials) is registered as a prior art regarding paint using ocher.

The prior art includes 0.2 to 5 parts by weight of a water-soluble cellulose derivative introduced with methyl, hydroxy ethyl or hydroxy propyl groups in cellulose based on 100 parts by weight of ocher, 1 to 7.5 parts by weight of pulp and 80 to 150 parts by weight of water. It is proposed an ocher paint composition for building materials, characterized in that the three components composed of ocher water-soluble cellulose derivatives and pulp are formed in a network structure with each other.

According to the prior art there is an advantage that it can be helpful in solving the pollution problem of the residential environment by manufacturing paint for building materials, including ocher. However, it does not include other additives such as thickeners, leveling agents, etc., which does not take into account the convenience of painting operations such as paint flowability and thickness.

Therefore, in order to solve the problems described above, there is a need to develop a coating composition for ships and aircraft using ocher, including other additives such as thickeners and leveling agents.

The present invention has been made to overcome the problems of the above technology, by including ocher in the coating composition for ships and aircraft to protect from oxidation and corrosion caused by exposure to salt and water, and at the same time antibacterial and bactericidal action and air purification effect The main purpose is to provide.

Another object of the present invention, by preparing a paint composition having a flame retardant or non-flammable, it is possible to prevent the fire, to prevent the spread of it in the event of a fire and to improve the insulation and thermal insulation performance.

Another object of the present invention is to provide a coating composition having improved adhesion and durability, physical properties and thermal and mechanical performance by preparing a composite resin by mixing the first composite and the second composite.

Yet another object of the present invention is to help prevent oxidation and corrosion due to frequent exposure of water and air by making pigments that can provide rust protection.

A further object of the present invention is to further include a curing accelerator in other additives to promote the formation of coatings when the coating composition is applied to ships and aircraft.

It is a further object of the present invention that the other additives can further reduce the harmful air around the ship and the aircraft by additionally including an adsorbent.

In order to achieve the above object, the coating composition for ships and aircraft using the loess according to the present invention and a method for producing the same, 30 to 50% by weight ocher, 20 to 35% by weight composite resin, pigment 5 to the total weight of the coating composition 15 wt%, 15-25 wt% of solvent, 1-15 wt% of other additives, the other additives being 30 to 80 wt% of thickener, 20 to 70 wt% of leveling agent Characterized in that consisting of.

In addition, the first composite, after mixing 95 to 99% by weight of epoxy resin, 1 to 5% by weight of modified carbon nanotubes with respect to the total weight of the primary material, and then heated for 5 to 8 hours at 40 to 70 ℃ 1 Preparing a primary material; A secondary material is prepared by mixing 65 to 80% by weight of the primary material and 20 to 35% by weight of the curing agent, and then heating at 70 to 90 ° C. for 10 to 30 minutes based on the total weight of the secondary material. step; The secondary material is heated at 100 to 150 ° C. for 1 to 5 hours to complete the first composite.

In addition, the modified carbon nanotubes, a first solution manufacturing step of preparing a first solution by mixing 95 to 99.5% by weight nitric acid, 0.5 to 5% by weight carbon nanotubes relative to the total weight of the first solution; Obtaining a first material by injecting the first solution at 50 to 70 ° C. for 1 to 3 hours and then washing and drying 2 to 5 times with water to obtain a first material; Preparing a second solution by mixing 0.5 to 5 wt% of the first material, 25 to 50 wt% of nitric acid, and 45 to 70 wt% of sulfuric acid based on the total weight of the second solution; Characterized in that the second solution is prepared through a second material obtaining step of obtaining a second material by injecting ultrasonic waves at 70 to 90 ℃ for 4 to 8 hours and then washing and drying 2 to 5 times with water; It is done.

Further, after the step of obtaining the second material, 0.5 to 5% by weight of the second material, 5 to 25% by weight of dimethylformamide (DMF), 70 to thionyl chloride, relative to the total weight of the third solution A third solution preparing step of preparing a third solution by mixing 90 wt% and then heating at 60 to 90 ° C. for 60 to 80 hours; Filtering the third solution to obtain a third material after drying, to obtain a third material; 20 to 40% by weight of the third solution, 30 to 50% by weight of triethanolamine (TEA), 30 to 50% by weight of ethylenediamine (EDA), and then 60 to 80 ° C at 100 to 150 ° C based on the total weight of the fourth solution. A fourth solution preparation step of preparing a fourth solution by heating for a time; Washing the fourth solution through ethanol 5 to 10 times and drying at 20 to 30 ℃ to complete the modified carbon nanotubes; it may be characterized in that it may include.

The coating composition for ships and aircraft using the loess according to the present invention and a method of manufacturing the same,

1) It can protect against oxidation and corrosion due to exposure of salt and water, and can provide antibacterial and bactericidal action and air purification effect, and can absorb moisture and release moisture when it is dried, thus maintaining a comfortable temperature throughout the four seasons. So that you can

2) By preparing a paint composition having a flame retardant or non-flammable, it is possible to prevent the fire, to prevent the spread of it in the event of a fire, and to improve the insulation and insulation performance,

3) excellent adhesion, durability, physical properties and can improve thermal, mechanical, electrical performance,

4) Anti-corrosion function is provided to help prevent oxidation and corrosion caused by frequent exposure of water and air,

5) In addition to promoting the formation of the coating film when the coating composition is applied to ships and aircraft,

6) It can effectively reduce the harmful air around the ship and aircraft, and at the same time improve the mechanical strength.

1 is a conceptual diagram showing the configuration of the coating composition of the present invention.
Figure 2 is a flow chart showing a method for producing a composite resin of the present invention.
Figure 3 is a flow chart showing a method for producing a curing accelerator of the present invention.
Figure 4 is a flow chart showing a method for preparing the adsorbent of the present invention.
5 is a graph showing the results of performing experiments on the composition of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numerals in each of the drawings refer to like elements.

Ships are exposed to oxidation and corrosion because they operate for long periods of time in salty seas with strong sunlight, and aircraft are exposed to more intense ultraviolet light than ground because they fly at high altitudes for long periods of time and are exposed to harsh weather conditions such as rain and snow. do. In this case, in order to prevent oxidation and corrosion of the ship and the aircraft, and to prevent wear due to physical friction and to improve durability, a process of coating the surface of the ship and the aircraft is required.

Such coating can be carried out by applying the paint to the surface, and the coating can be applied when not only physical protection but also emphasis is placed on the camouflage when used for military purposes, or the identity indicating ownership of ships and aircraft.

At this time, by including ocher in the coating composition for ships and aircraft, it is possible to produce an eco-friendly paint while at the same time giving a unique color ocher.

The loess is an environmentally friendly material that can provide antimicrobial and bactericidal action and air purification effect, which can help to maintain a comfortable temperature throughout the four seasons by absorbing moisture and releasing moisture when it is dried.

In addition, ocher is inorganic and non-flammable or flame retardant, and when applied to ships and aircrafts to prevent fire, it is possible to prevent its spread in the event of fire. In addition, loess has thermal insulation and insulation properties, which can improve the heat preservation of aircraft and ships.

Therefore, in the present invention to prepare a coating composition for ships and aircraft using ocher.

1 is a conceptual diagram showing the configuration of the coating composition of the present invention.

The coating composition of the present invention is a mixture of 30 to 50% by weight of ocher, 20 to 35% by weight of composite resin, 5 to 15% by weight of pigment, 15 to 25% by weight of solvent, and 1 to 15% by weight of other additives, based on the total weight of the coating composition. It may be made of.

Here, loess is an environmentally friendly material with excellent far-infrared anion emission, good antibacterial and bactericidal action, and air purification effect, and has anti-humidity effect, which can prevent condensation or mold growth. In addition, the composite resin is a viscous material that serves to impart the adhesiveness of the coating composition, it is a material that can be cured to form a glossy coating layer, a specific manufacturing method will be described later. In addition, the pigment is a substance which gives color to the coating composition, which helps to improve the adhesion of the coating composition and which may help to prevent oxidation and to improve durability, and a specific manufacturing method will be described later. In addition, the solvent is a substance having a property of dissolving the above-described components, serves to adjust the viscosity of the coating composition. Such solvents may include hydrocarbon solvents such as white copper oil, toluene, toluene, xylene and ester solvents such as ethyl acetate, butyl acetate and amyl acetate. It may be used as or a mixture of plural or more.

At this time, the other additives described above may be made of a mixture of the thickener 30 to 80% by weight, the leveling agent 20 to 70% by weight relative to the total weight of other additives. Here, the thickener (Viscosifier agent) may be used as organic bentonite, aluminum stearate, aluminum octate, and the like, which can lower the flowability of the coating composition. The components make up the structure of the net to lower the viscosity, thereby preventing the flow or condensation during the coating of the coating composition, it is possible to control the thickness of the coating film and improve the workability during the painting work. In addition, the leveling agent may cause paint film defects such as solvent evaporation occurring during the drying process of the coating composition, viscosity change due to high molecular weight, brush marks due to changes in surface tension, crater phenomenon, and pinholes. To prevent this, it is a surface control agent that can adjust the surface of the coating film, poly alkyl acrylate (poly alkyl acrylate), polyalkyl vinyl ether (Polyalkyl vinyl ether), cellulose acetate butylate, dimethyl polysiloxane (di -methyl polysiloxane, methyl phenyl polysiloxane can be used.

2 is a flowchart showing a method of producing a composite resin of the present invention.

The above-mentioned composite resin may be composed of a mixture of 30 to 70 wt% of the first composite and 30 to 70 wt% of the second composite, based on the total resin weight.

In this case, the first composite may be manufactured through the first material manufacturing step S100, the second material manufacturing step S110, and the first composite completing step S120.

First, the primary material manufacturing step (S100) is a mixture of 95 to 99% by weight of epoxy resin, 1 to 5% by weight of modified carbon nanotubes relative to the total weight of the primary material, and then heated for 5 to 8 hours at 40 to 70 ℃ After that is the process of manufacturing the primary material. At this time, the epoxy resin may use a commercially available epoxy resin, and serves as a base of the first composite. In addition, the modified carbon nanotubes are modified carbon nanotubes and have a semi-metal property, and are materials capable of improving mechanical properties of the first composite. Specific methods for producing such modified carbon nanotubes will be described later.

Next, the secondary material manufacturing step (S110) is a mixture of 65 to 80% by weight of the primary material, 20 to 35% by weight of the curing agent relative to the total weight of the secondary material, and then heated at 70 to 90 ℃ for 10 to 30 minutes 2 The process of manufacturing tea materials. Here, the curing agent may be used 4.4'-Diamino diphenyl methane (DDM), it is a material that can impart viscosity by curing the primary material.

Finally, the first composite completion step (S120) is a process of completing the first composite by heating the secondary material at 100 to 150 ° C. for 1 to 5 hours.

The first composite produced through this process is a material of coating in various fields such as electric, electronics, civil engineering, construction, etc., including ships and aircrafts. It is preferred to be used.

Basically, carbon nanotubes are materials with excellent thermal, mechanical and electrical properties. They have high resilience and low weight density, are superior to steel in mechanical properties, and have thermal conductivity similar to that of copper. It is a substance having. At this time, if the carbon nanotubes are modified through a process to be described later, thermal, mechanical, and electrical properties of the carbon nanotubes may be improved.

Such modified carbon nanotubes may be prepared through a first solution preparing step, a first material obtaining step, a second solution preparing step, and a second material obtaining step.

First, the step of preparing the first solution is a process of preparing the first solution by mixing 95 to 99.5% by weight of nitric acid and 0.5 to 5% by weight of carbon nanotubes with respect to the total weight of the first solution. After the solution is ultrasonically injected at 50 to 70 ° C. for 1 to 3 hours, the solution is washed and dried 2 to 5 times with water to obtain a first material. This process is a process of clean purification and pretreatment in order to introduce a functional group to the carbon nanotubes, wherein the carbon nanotubes serve as a reinforcing agent that can mechanically strengthen the above-described first composite.

Next, the second solution preparation step is a process of preparing a second solution by mixing 0.5 to 5% by weight of the first material, 25 to 50% by weight nitric acid, 45 to 70% by weight sulfuric acid based on the total weight of the second solution, The second material obtaining step is a process in which the second solution is ultrasonically injected at 70 to 90 ° C. for 4 to 8 hours, followed by washing and drying 2 to 5 times with water to obtain a second material. This process is an acid treatment process by mixing strong acids (nitric acid and sulfuric acid) in the first material, and a functional group of a carboxyl group may be introduced on the surface of the first material.

Through this process, by introducing a carboxyl group on the surface of the carbon nanotubes, it is possible to improve the thermal and mechanical performance than conventional carbon nanotubes.

In addition, the above-described second material obtaining step may further include a third solution preparing step, a third material obtaining step, a fourth solution preparing step, and a modified carbon nanotube completion step.

First, the third solution preparation step comprises 0.5 to 5% by weight of the second material, 5 to 25% by weight of dimethylformamide (DMF), 70 to 90% by weight of thionyl chloride, based on the total weight of the third solution. After mixing, heating is carried out at 60 to 90 ° C. for 60 to 80 hours to prepare a third solution, and the third material obtaining step is a process of filtering and drying the third solution to obtain a third material. Here, the thionyl chloride is weak in water, it is preferable to dilute it sufficiently using THF, and then dry it in a vacuum oven at room temperature. This process may include the amine group in the carboxyl group described above. It is the process of pretreatment so that it can be introduced well.

Next, the fourth solution preparation step is a mixture of 20 to 40% by weight of the third solution, 30 to 50% by weight of triethanolamine (TEA), 30 to 50% by weight of ethylenediamine (EDA) based on the total weight of the fourth solution 100 The process of preparing a fourth solution by heating at 150 to 150 ° C. for 60 to 80 hours is performed to introduce an amine group into the aforementioned carboxyl group. Here, triethanolamine and ethylenediamine may serve as a catalyst for promoting the production rate of the modified carbon nanotubes.

Finally, the modified carbon nanotube completion step is a process of completing the modified carbon nanotubes by washing the fourth solution 5 to 10 times with ethanol and drying at 20 to 30 ° C. The modified carbon nanotubes prepared through these steps may include an amine group in addition to a carboxyl group in a conventional carbon nanotube, thereby improving thermal, mechanical, and electrical properties. Therefore, it can be used as a material of the first composite to effectively improve the physical properties of the first composite.

Subsequently, the second complex may be prepared through a first solution preparation step, a second solution preparation step, and a second complex completion step.

First, the primary solution preparation step is 10 to 25% by weight of polyvinylacetate emulsion, 75 to 90% by weight of ethylene vinyl acetate copolymer (EVA) relative to the total weight of the first solution, and then 10 to 40 at 30 to 60 ℃ As a process of preparing a primary solution by stirring for a minute, the ethylene vinyl acetate copolymer and the polyvinylacetate emulsion react to have a viscosity through this step. At this time, in order to improve the convenience and mixing of the primary solution, before the preparation of the primary solution, ethylene vinyl acetate copolymer (EVA) is first put into a reactor and a pretreatment process of stirring at 20 to 40 ° C. for 10 to 30 minutes is performed. You may.

Next, the secondary solution preparation step is added to 60 to 80% by weight of the primary mixture, 20 to 40% by weight of lauryl methacrylate (LMA) relative to the total weight of the total secondary solution and 30 to 50 minutes at 20 to 50 ℃ It is a process of preparing a secondary solution by stirring.

The addition of lauryl methacrylate (LMA) compensates for the low mechanical strength of the ethylene vinyl acetate copolymer (EVA) and polyvinylacetate emulsion, and as a result can be included in the coating composition to improve mechanical strength and durability. .

Finally, the second complex completion step is added 80 to 95% by weight of the secondary solution and 5 to 20% by weight of polytetrafluoroethylene relative to the total weight of the second composite and 30 to 200 minutes at 30 to 50 ℃ Stirring to complete the second composite. Here, polytetrafluoroethylene is a material having water repellency and oil repellency and provides properties of strength improvement and heat resistance, water repellency, and oil repellency.

The second composite prepared through this process is mixed with the first composite to be included in the coating composition, thereby improving the adhesiveness of the coating composition and at the same time improving the mechanical strength and durability.

Ships and aircraft to which the present invention is applied have a high risk of surface corrosion because they are frequently exposed to water and air. Therefore, such a corrosion phenomenon can be prevented by manufacturing and containing the pigment which can perform anticorrosive (preventing rust to a metal) in the pigment of a coating composition.

Such pigments may be prepared through a sub solution preparation step and a pigment completion step.

First, the sub solution preparing step is a process of preparing a sub solution by mixing 95 to 99.9 wt% of water and 0.1 to 5 wt% of mica based on the total weight of the sub solution. Here, mica is a material having a nano-level size as well as excellent surface glossiness, and is a material that is used a lot of high-quality pigments as a material that can provide a pearlescent effect.

Next, the pigment completion step is 1 to 3 at 60 to 80 ℃ after mixing 65 to 80% by weight of the sub-solution, 10 to 25% by weight of zinc nitrate, 5 to 15% by weight of phosphoric acid, 0.5 M potassium hydroxide It is the process of heating the pigment to complete the pigment. At this time, 0.5M potassium hydroxide was added to adjust the pH of the pigment, the pH of the pigment is preferably 5.5 to 6.0.

Here, mica and phosphoric acid in the sub solution react first, and the phosphoric acid and zinc nitrate react to form zinc phosphate. Finally, the surface of the mica is coated with zinc phosphate, which is the result of the reaction of phosphoric acid and zinc nitrate. Such zinc phosphate can give anti-corrosion performance that can prevent corrosion. In addition, zinc nitrate, an unreacted substance that did not react with phosphoric acid, reacts with 0.5 M potassium hydroxide to produce zinc oxide, and such zinc oxide may also impart rust preventive function.

Figure 3 is a flow chart showing a method for producing a curing accelerator of the present invention.

In another embodiment, the other additives described above may further include a curing accelerator to promote the formation of the coating film when the coating composition is applied to the ship and the aircraft.

Specifically, the other additives further include a curing accelerator, but may be made of a mixture of the thickener 30 to 60% by weight, leveling agent 20 to 40% by weight, and the curing accelerator 20 to 40% by weight based on the total weight of other additives.

Such a curing accelerator may be prepared through an intermediate solution preparing step (S200), an intermediate material obtaining step (S210), and a curing accelerator completing step (S220).

First, the intermediate solution preparation step (S200) is 70 to 85% by weight of tetrahydrofuran (THF), 1 to 15% by weight MDI (4,4'-Diphenylmethane diisocyanate), 1 to 15% by weight of phenol , DBTDL (Dibutyltin dilaurate) is mixed with 0.01 to 5% by weight and heated at 50 to 70 ℃ for 4 to 8 hours to prepare an intermediate solution, the process is preferably carried out under the injection of argon air.

Here, THF serves as an organic solvent, and MDI, which is a typical isocyanate-based material, has an isocyanate group (-NCO) to react with a hydroxyl group (-OH) of phenol to produce an intermediate material to be described later. In addition, DBTDL acts as a catalyst to accelerate the production rate of the curing accelerator.

Thereafter, the intermediate material obtaining step (S210) is a process of filtering the intermediate solution to obtain a filtrate, and then washing it with water one to three times and then drying at 60 to 80 ° C. for 20 to 30 hours to obtain an intermediate. As mentioned above, the resulting intermediate is a product of the reaction of MDI with phenol.

Finally, the curing accelerator completion step (S220) is a process of completing the curing accelerator by mixing 10 to 40% by weight of the intermediate material, 60 to 90% by weight of diethylenetriamine (DETA) relative to the total weight of the curing accelerator. Here, diethylenetriamine has been used as a curing aid capable of curing the coating composition, and can be mixed with an intermediate to effectively promote the curing rate of the coating composition. The curing accelerator prepared through this process may be additionally included in the coating composition to promote the curing reaction of the coating composition. In order to further promote the curing reaction, the curing accelerator is preferably heated and mixed at 110 to 130 ° C. under a nitrogen atmosphere.

4 is a flowchart showing a method of preparing the adsorbent of the present invention.

In addition, other additives may further include an adsorbent to effectively reduce harmful air around ships and aircraft.

In general, the inside of an aircraft or a ship is very large, so it is not well ventilated from the outside, and because of the long distance operation, there is a high risk of exposure to various harmful air, including radon, a harmful radioactive material. Therefore, by additionally including the adsorbent to other additives can be effectively absorbed by these harmful substances removed.

Specifically, the other additives including the adsorbent may be composed of a mixture of the thickener 30 to 50% by weight, the leveling agent 20 to 30% by weight, the curing accelerator 20 to 30% by weight, the adsorbent 10 to 20% by weight relative to the total weight of the other additives have.

This adsorbent may be prepared through the preparation material preparation step (S230), the adsorbent completion step (S240).

First, the preparation material preparing step (S230) is prepared by mixing 20 to 50% by weight of zeolite powder, 20 to 50% by weight of titanium dioxide, 1 to 15% by weight of calcium oxide, and 1 to 15% by weight of germanium, based on the total weight of the preparation material. The process of manufacturing the material. At this time, the zeolite is an inorganic high molecular mineral produced by the combination of aluminum oxide and silicate oxide, and has the property of strongly adsorbing unsaturated hydrocarbons and polar substances. . In addition, titanium dioxide (TiO ₂ ) is a material that is very stable and harmless to the environment and the human body and is generally used as an environmental improving agent because of its antibacterial properties. In addition, calcium oxide can provide the function of removing phosphorus and sulfur, which are harmful to the human body, and germanium is a substance capable of detoxifying heavy metals.

Finally, the adsorbent completion step (S240) is a process of completing the adsorbent by mixing 60 to 80% by weight of the preparation material, 20 to 40% by weight of water with respect to the total adsorbent weight, and then mixed for 40 to 80 minutes at 0 to 15 ℃ to be.

The adsorbent prepared through this process may be included in the coating composition and applied to ships and aircrafts to help effectively adsorb and remove harmful substances and air, and at the same time improve mechanical strength.

Hereinafter, the present invention will be described by comparing examples with reference to examples and comparative examples. As for the Examples and Control Examples to be described later, 25 evaluation groups observed and evaluated the coating composition of the present invention, and the curing rate and the removal efficiency of the coating film of the coating composition of the present invention and the commercial coating composition were very good. 5) was evaluated in five stages of good (4), normal (3), bad (2) and very bad (1) to determine the average point.

In this case, the curing rate is evaluated after the evaluation stage observes the rate at which the coating film is formed as time passes after the coating composition of the present invention is applied, and the effect of removing the pollutants is surrounding contamination before and after coating of the coating composition of the present invention. Air was measured and the effectiveness of removing contaminants was evaluated.

The higher the speed at which the coating film is formed after the coating composition of the present invention (i.e., curing rate) is very good (5), and the slower the rate at which the coating film is formed after the coating composition is applied (i.e., curing rate) It was evaluated to be close to the bad (1).

Further, the greater the change in contamination concentration before and after the coating composition of the present invention is applied (that is, the better the contamination has been removed), the closer to very good (5), and the smaller the change in contamination concentration before and after the coating composition is applied ( In other words, the poorer the pollutants were removed, the closer to the poor (1). (Pollutant removal effect)

<Example 1>

50 g of ocher, 25 g of composite resin, 10 g of pigment, 20 g of solvent, 3 g of thickener, and 3 g of leveling agent were mixed to prepare a coating composition.

The coating composition further included 3g of a curing accelerator and 3g of an adsorbent.

<Example 2>

A coating composition was prepared in the same manner as in Example 1, except that 3 g of a curing accelerator was added in Example 1.

<Example 3>

A coating composition was prepared in the same manner as in Example 1, except that 3 g of the adsorbent was added in Example 1.

<Control>

Commercial coating compositions.

<Table showing the results of the experiment on the coating composition of the present invention>

Figure 5 is a graph showing the results of the experiment performed on the composition of the present invention.

Through the bar shown in Figure 5, the evaluation step after the observation and measurement of the Example and the control example is expressed in a table expressing the cure rate, pollutant removal efficacy as the average score, Examples 1 to 3 as described above and In comparison, a high evaluation score was obtained. Therefore, it can be seen that the coating composition of the present invention (Examples 1 to 3) has a faster curing speed and better removal of contaminants than a commercial coating composition as a control example.

Through this, it is possible to grasp the importance of preparing the curing accelerator and the adsorbent.

As described so far, the coating composition for ships and aircraft and the manufacturing method thereof using the loess according to the present invention have been represented in the above description and drawings, but these are merely described as examples, and the spirit of the present invention is limited to the above description and drawings. Of course, various changes and modifications are possible without departing from the technical spirit of the present invention.

S100: primary material manufacturing step S110: secondary material manufacturing step
S120: first complex completion step S130: primary solution preparation step
S140: secondary solution preparation step S150: second composite completion step
S200: step of preparing intermediate solution S210: step of obtaining intermediate
S220: completion of curing accelerator S230: preparation of preparation material
S240: adsorbent completion step

Claims (11)

As a coating composition for ships and aircraft using loess,
Based on the total weight of the coating composition, 30 to 50% by weight ocher, 20 to 35% by weight composite resin including carbon nanotubes, 5 to 15% by weight pigment, 15 to 25% by weight solvent, 1 to 15% by weight of other additives But
The other additives, characterized in that consisting of a mixture of the thickener 30 to 80% by weight, the leveling agent 20 to 70% by weight relative to the total weight of the other additives, coating composition for ships and aircraft. The method of claim 1,
The composite resin,
Ship comprising a mixture of 30 to 70% by weight of the first composite including the carbon nanotubes, 30 to 70% by weight of the second composite including the ethylene vinyl acetate copolymer (EVA), relative to the total composite resin weight, and Coating composition for aircraft. delete delete delete delete The method of claim 1,
The pigment,
Preparing a sub solution by mixing 95 to 99.9 wt% of water and 0.1 to 5 wt% of mica based on the total weight of the sub solution;
65 to 80% by weight of the total solution weight, 10 to 25% by weight of zinc nitrate, 5 to 15% by weight of phosphoric acid, 0.5 M potassium hydroxide, followed by heating at 60 to 80 ° C. for 1 to 3 hours; A coating composition for ships and aircraft, characterized in that it is prepared through. The method of claim 1,
The other additives,
In addition to the curing accelerator,
The other additives including the curing accelerator,
30 to 60% by weight of the thickener, 20 to 40% by weight of the leveling agent, 20 to 40% by weight of the curing accelerator, characterized in that the coating composition for ships and aircraft. The method of claim 8,
The curing accelerator,
70 to 85% by weight of THF, 1 to 15% by weight of MDI, 1 to 15% by weight of phenol, and 0.01 to 5% by weight of DBTDL were mixed and then heated at 50 to 70 ° C. for 4 to 8 hours to the total weight of the intermediate solution. An intermediate solution preparation step of preparing a solution;
Filtering the intermediate solution followed by washing the filtrate 1 to 3 times with water and then drying at 60 to 80 ° C. for 20 to 30 hours to obtain an intermediate material;
Comprising the total weight of the curing accelerator, by mixing 10 to 40% by weight of the intermediate material, 60 to 90% by weight of diethylenetriamine (DETA) to complete the curing accelerator; Composition. The method of claim 8,
The other additives,
In addition to adsorbents,
The other additive including the adsorbent,
30 to 50% by weight of the thickener, 20 to 30% by weight of the leveling agent, 20 to 30% by weight of the curing accelerator, 10 to 20% by weight of the adsorbent, characterized in that the paint for ships and aircraft Composition. The method of claim 10,
The adsorbent,
Preparing a preparation material by mixing 20 to 50% by weight of zeolite powder, 20 to 50% by weight of titanium dioxide, 1 to 15% by weight of calcium oxide, and 1 to 15% by weight of germanium, based on the total weight of the preparation material;
Comprising the total adsorbent weight, 60 to 80% by weight of the preparation material, 20 to 40% by weight of water for 40 to 80 minutes at 0 to 15 ℃ mixed to complete the adsorbent; Coating composition for aircraft.

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