KR20160005614A - Antifouling paint composition using fluorine acrylic resin and method of manufacturing the same - Google Patents

Abstract

The present invention relates to an antifouling paint composition using a fluorine acrylic resin and a production method thereof. More specifically, the antifouling paint composition using the fluorine acrylic resin of the present invention comprises: 10-30 wt% of the fluorine acrylic resin; 30-50 wt% of an acrylic resin; 5-15 wt% of a thermoplastic resin; 0.1-0.3 wt% of a reaction catalyst; 0.1-1 wt% of a wetting additive; 1-2 wt% of a photostabilizer; and 10-30 wt% of a mixed solvent.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an antifouling coating composition using a fluororesin, and an antifouling coating composition using the fluororesin.

The present invention relates to an antifouling paint composition using a fluororesin and a method for producing the same, and more particularly, to a fluororesin composition containing a fluororesin as an antifouling paint composition, which is excellent in resistance to stains, weatherability, chemical resistance and durability And an antifouling coating composition using the fluororesin acrylic resin which can be utilized for automobile interior and exterior materials, household appliances, packaging materials, food containers, etc., and a method for manufacturing the same.

In recent years, automobiles are becoming increasingly demanding for functional parts as a part of high-end. Particularly, there is a tendency to demand an antifouling function in a bumper which is located nearest to a road surface (road) among automobile parts and which is heavily influenced by pollution (mud, insect, etc.) while driving. If the contamination marks do not easily disappear during decontamination, there is an increasing possibility that the scratches and damage of the coatings are likely to occur during the overcleaning process. Therefore, it is necessary to develop an antifouling paint which can easily remove contaminants when it is contaminated.

In the related art, Korean Patent No. 1,362,511 and 1,220,416 disclose a lotus effect in order to realize an antifouling performance, and by using an inorganic particle on the surface with a lotus effect, a nano-sized uniform pattern is given to form a super water- However, the water repellency is excellent, but there are limitations in the implementation of the coating process.

Japanese Patent No. 9,124,715 discloses a method capable of minimizing the degree of contamination by preventing the pollutants and the like from being imparted with a hydrophilic property rather than a water repellency. However, the method disclosed in Japanese Patent No. 9,124,715 discloses a method in which water repellency such as water resistance and weather resistance There is a problem that it is difficult to satisfy.

On the other hand, Korean Patent Nos. 549,289 and 989,353 disclose a method for imparting water repellency by using a fluorine additive manufactured by 3M, Du Pont, etc. to achieve contamination prevention. However, There is a limitation in the amount of use due to compatibility with resins. Also, although the initial antifouling performance is realized, there is a disadvantage that the antifouling performance deteriorates over time.

These antifouling paints should satisfy the reliability such as the resistance to forgiveness, chemical resistance and weather resistance required by conventional paint for bumpers, and durability in which the initial antifouling performance is maintained is required. Also, in order to replace existing bumper coatings, it is necessary to be able to realize the appearance of existing coatings, and the coating workability should not deteriorate. Therefore, it is necessary to develop a coating material having excellent reliability and appearance of the conventional bumper coating material and excellent antifouling performance.

An object of the present invention is to provide an antifouling paint composition using a fluororesin having an antifouling property.

Another object of the present invention is to provide a method for producing an antifouling coating composition using a fluororesin having excellent properties such as stain resistance, weather resistance, chemical resistance and durability.

The antifouling coating composition using the fluorine acrylic resin of the present invention comprises 10 to 30% by weight of a fluorine acrylic resin; 30 to 50% by weight of an acrylic resin; 5 to 15% by weight of a thermoplastic resin; 0.1 to 0.3% by weight of a reaction catalyst; 0.1 to 1% by weight of a wetting additive; 1 to 2% by weight of light stabilizer; And 10 to 30% by weight of a mixed solvent.

The fluorine acrylic resin may contain 3 to 10% by weight of the fluorine acrylic monomer relative to the total fluorine acrylic resin.

The fluorine acrylic monomer may be CF ₂ And may include six functional groups.

[Chemical Formula]

The fluorine acrylic resin may have a weight average molecular weight (Mw) of 5,000 to 10,000 g / mol and a hydroxyl group content of 0.5 to 3%.

The acrylic resin has a weight average molecular weight (Mw) of 9,000 to 15,000 g / mol, an acid value of 0.01 to 0.1 mgKOH / g, a hydroxyl group content of 0.01 to 1% and a glass transition temperature (Tg) Lt; / RTI >

The thermoplastic resin may have a weight average molecular weight (Mw) of 3,000 to 10,000 g / mol, a hydroxyl content of 2 to 4%, and a glass transition temperature (Tg) of 50 to 100 ° C.

The mixed solution may be an ester type, a ketone type or a mixture of the two.

The method for producing an antifouling coating composition using the fluorine acrylic resin according to the present invention is characterized in that the organic solvent contains 3 to 10% by weight of a fluorine acrylic monomer, 10 to 20% by weight of an acrylic monomer having an aliphatic group, 15 to 20% by weight of a methacrylic monomer having an aliphatic group, 5 to 10% by weight of an acrylic monomer having an aromatic group, 5 to 15% by weight of a hydroxy group methacrylic monomer, 0.5 to 1.5% by weight of a methacrylic monomer having a carboxyl group, and 1 to 3% by weight of a radical initiator, ; And adding an acrylic resin, a thermoplastic resin, a reaction catalyst, a wetting additive, a light stabilizer, and a mixed solvent to the fluorine acrylic resin to prepare an antifouling paint composition.

The organic solvent may be at least one selected from the group consisting of toluene, xylene, and ketone.

Examples of the acrylic acid ester monomer include methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tertiary butyl methacrylate, 2-ethylhexyl methacrylate , Benzyl methacrylate, phenyl methacrylate, stearic methacrylate, cyclohexyl methacrylate, and lauryl methacrylate may be combined with one or more kinds of monomers.

The thermoplastic resin may be a polyester resin.

The radical initiator may be one or more selected from the group consisting of tertiary butyl peroxybenzoate, tertiary butyl peroxy-2-ethyl hexanoate, and tertiary amyl peroxy-2-ethyl hexanoate .

The step of preparing the antifouling paint composition comprises 10 to 30% by weight of a fluororesin, 30 to 50% by weight of an acrylic resin, 5 to 15% by weight of a thermoplastic resin, 0.1 to 0.3% by weight of a reactive catalyst, 0.1 to 1% 1 to 2% by weight of a light stabilizer and 10 to 30% by weight of a mixed solvent.

Each of the above steps may be performed at a temperature ranging from 100 to 150 DEG C for 30 minutes to 5 hours.

The antifouling paint composition of the present invention has excellent stain resistance, weather resistance, chemical resistance, durability, and easy-clean performance by applying a fluorine-containing acrylic resin containing a fluorine group to paints.

The antifouling paint of the present invention, which can simultaneously realize functionalization and product upgrading, can be applied to automobile interior and exterior materials, household appliances, packaging materials, food containers and the like.

Hereinafter, the present invention will be described in more detail through examples and the like.

The antifouling coating composition using the fluorine acrylic resin of the present invention comprises 10 to 30% by weight of a fluorine acrylic resin; 30 to 50% by weight of an acrylic resin; 5 to 15% by weight of a thermoplastic resin; 0.1 to 0.3% by weight of a reaction catalyst; 0.1 to 1% by weight of a wetting additive; 1 to 2% by weight of light stabilizer; And 10 to 30% by weight of a mixed solvent.

The fluorine acrylic resin can be prepared by radical polymerization of various kinds of monomers having vinyl type double bonds of acrylic acid ester or methacrylic acid ester in a thermal decomposition initiator solution. The fluorine acrylic resin may contain 3 to 10% by weight of the fluorine acrylic monomer relative to the total fluorine acrylic resin. At this time, if the content of fluorine acrylic monomer is less than 3% by weight, it is difficult to achieve contamination resistance. On the other hand, if it exceeds 10% by weight, compatibility may be deteriorated.

Further, the fluorine acrylic monomer containing a fluorine group may be CF ₂ And may include six functional groups. Fluorine acrylic monomers containing eight commonly used CF ₂ functional groups contain toxic substances such as PFOA or PFOS, which limits their use. On the other hand, the CF ₂ The fluoroacrylic monomer containing 6 functional groups has no antifouling effect on the environment and exhibits antifouling performance due to the hydrophobic nature of the fluorine group and improves compatibility with other acrylic resins, It is possible not only to prevent contamination but also to improve physical properties such as chemical resistance, weather resistance and durability.

 [Chemical Formula]

The fluorine acrylic resin may have a solid content of 57% by weight, a weight average molecular weight (Mw) of 5,000 to 10,000 g / mol, and a hydroxyl group content of 0.5 to 3%. If the content of the fluorine-containing acrylic resin is less than 10% by weight, the antifouling performance is not achieved. On the other hand, if the content is more than 30% by weight, the scratch resistance, wettability and smoothness of the coating film may be deteriorated.

Wherein the acrylic resin has a solid content of 50 wt% or more, a weight average molecular weight (Mw) of 9,000 to 15,000 g / mol, an acid value of 0.01 to 0.1 mgKOH / g, a hydroxyl group content of 0.01 to 1% (Tg) of 30 to 40 占 폚. It is preferable to use an acid having an acid value of 0.05 mgKOH / g and a hydroxyl group content of 0.1 to 0.5%. If the content of the acrylic resin is less than 30% by weight, the reliability of the hardness, weather resistance, and chemical resistance may be deteriorated. On the other hand, if the content of the acrylic resin is more than 50% by weight, cracks Can be.

The thermoplastic resin may have a solid content of 80% by weight, a weight average molecular weight (Mw) of 3,000 to 10,000 g / mol, a hydroxyl content of 2 to 4%, and a glass transition temperature (Tg) have. The thermoplastic resin can crosslink with isocyanate as a curing agent to exhibit high appearance such as gloss and leveling.

The reaction catalyst serves to improve the reaction rate of the subject (hydroxyl group) and the curing agent (isocyanate) as a urethane reaction catalyst. When the content is less than 0.1% by weight, the reaction rate can be lowered. Conversely, There is a problem that the working time is shortened and the workability is lowered.

The wetting additive is a polyether siloxane-based additive, and has the property of improving the wettability upon coating and the leveling property of the coating film surface. The light stabilizer has a property of improving weatherability as an ultraviolet absorber.

The mixed solution may be an ester type, a ketone type or a mixture of the two. The mixed solution facilitates the coating operation and can control the volatilization rate of the solvent to ensure smoothness and appearance of the coating film.

The method for producing an antifouling coating composition using the fluorine acrylic resin according to the present invention is characterized in that the organic solvent contains 3 to 10% by weight of a fluorine acrylic monomer, 10 to 20% by weight of an acrylic monomer having an aliphatic group, 15 to 20% by weight of a methacrylic monomer having an aliphatic group, 5 to 10% by weight of an acrylic monomer having an aromatic group, 5 to 15% by weight of a hydroxy group methacrylic monomer, 0.5 to 1.5% by weight of a methacrylic monomer having a carboxyl group, and 1 to 3% by weight of a radical initiator, ; And adding an acrylic resin, a thermoplastic resin, a reaction catalyst, a wetting additive, a light stabilizer, and a mixed solvent to the fluorine acrylic resin to prepare an antifouling paint composition.

The organic solvent may be at least one selected from the group consisting of toluene, xylene, and ketone.

Examples of the acrylic acid ester monomer include methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tertiary butyl methacrylate, 2-ethylhexyl methacrylate , Benzyl methacrylate, phenyl methacrylate, stearic methacrylate, cyclohexyl methacrylate, and lauryl methacrylate may be combined with one or more kinds of monomers.

The thermoplastic resin is preferably a polyester resin. The polyester resin is prepared by introducing an acid component, a polyhydric alcohol component, a catalyst and various additives into a reactor equipped with a stirrer, removing ester condensation by-products having a low molecular weight while maintaining the temperature of the reactor at 200 to 230 ° C, Proceed. The conversion of the ester reaction is terminated based on the point at which at least 95% of the theoretical effluent of the low molecular weight ester by-product is drained. When the ester reaction is terminated, the polyester condensation reaction is induced while raising the reactor temperature to 250 to 280 ° C. During the condensation reaction, when the acid value is 2 to 4 mgKOH / g, the reaction is stopped to produce a polyester resin.

The radical initiator is selected from the group consisting of tertiary butyl peroxybenzoate, tertiary butyl peroxy-2-ethylhexanoate, and tertiary amyl peroxy-2-ethylhexanoate as radical-polymerizable initiators which are organic peroxides Or a combination of two or more.

The step of preparing the antifouling paint composition comprises 10 to 30% by weight of a fluororesin, 30 to 50% by weight of an acrylic resin, 5 to 15% by weight of a thermoplastic resin, 0.1 to 0.3% by weight of a reactive catalyst, 0.1 to 1% 1 to 2% by weight of a light stabilizer and 10 to 30% by weight of a mixed solvent.

Each of the above steps may be performed at a temperature ranging from 100 to 150 DEG C for 30 minutes to 5 hours.

In the antifouling paint composition of the present invention, a curing agent may be added for curing, and the curing agent is preferably a hexamethylene diisocyanate trimer system having excellent non-yellowing and weathering resistance. The content of the solvent may be varied depending on the required thickness of the coating film and the method of forming the coating film, but the content of the solvent may be 10 to 30 By weight.

The paint and the curing method for the antifouling paint composition were carried out by mixing the main and curing agent in a mixing ratio of 2: 1 to 4: 1 by weight, and using a diluting solvent to obtain a paint viscosity of about 13.0 to 15.0 sec (Ford Cup No. 4) It is preferable to paint. The curing method includes a step of pretreating the PP material for the bumper with isopropyl alcohol and subjecting the material to plasma treatment; Coating a primer with a thickness of 7 to 12 占 퐉 on the surface of the plasma-treated workpiece; Coating the intermediate surface of the primer-coated material with a thickness of 15 to 25 占 퐉; And a step of applying antifouling clear coating to the color coated surface of the material at a thickness of 25 to 35 탆 and curing at 80 캜 for 30 minutes.

Accordingly, the antifouling coating composition using the fluororesin of the present invention has excellent stain resistance, weather resistance, chemical resistance, durability, and easy-clean performance by applying a fluororesin containing fluorine group to a coating material .

The antifouling paint of the present invention, which can simultaneously realize functionalization and product upgrading, can be applied to automobile interior and exterior materials, household appliances, packaging materials, food containers and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited by the following Examples.

Production Example: Production of fluorine-containing acrylic resin containing fluorine group

To the four-necked flask equipped with a stirrer, a condenser and a thermometer was added 25 wt% of a toluene solvent. While maintaining the temperature of the reactor at 120 DEG C, 7 wt% of fluorine acrylic monomer, 15 wt% of butyl acrylate, 18 wt% of butyl methacrylate 7 wt% of styrene monomer, 10 wt% of hydroxyl methyl methacrylate, 1.0 wt% of methyl methacrylic acid, and 1.5 wt% of radical initiator, tertiary butyl peroxybenzoate were added dropwise over 4 hours. At this time, the fluorine acrylic monomer was diluted with a toluene solvent in a separating funnel different from butyl methacrylate and butyl acrylate, and dropped separately. After maintaining for 30 minutes, 0.6% by weight of tertiary butyl peroxybenzoate was added, diluted in the solvent, and added dropwise for 30 minutes. Then, the mixture was maintained at the same temperature for 2 hours and then cooled to obtain a fluorine-containing acrylic resin containing fluorine groups. The obtained fluorine-containing acrylic resin had a weight average molecular weight (Mw) of 7,500 g / mol, a hydroxyl content of 2.6% and a solids content of 57% by weight.

Example

As shown in the following Table 1, 40% by weight of the fluorine acrylic resin, 40% by weight of the acrylic resin, 10% by weight of the polyester resin, 0.3% by weight of the reaction catalyst, 0.7% by weight of the wet additive, %, And 27 wt% of a mixed solvent were mixed to prepare an antifouling paint composition. Then, the coating material was applied to the substrate using a curing agent of hexamethylene diisocyanate trimer and then cured at 80 DEG C for 30 minutes to prepare a coating film containing the coating composition.

Comparative Examples 1 to 6

And the composition and the composition ratio were carried out as shown in Table 1 below.

division Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Reactive fluorine acrylic resin 20 - 40 40 5 10 20 Acrylic resin 40 50 20 10 60 40 30 Polyester resin 10 20 10 20 5 20 30 Reaction catalyst 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Wet additive 0.7 0.7 0.7 0.7 0.7 0.7 0.7 Light stabilizer 2 2 2 2 2 2 2 Mixed solvent 27 27 27 27 27 27 27 (Unit: wt%)
* Reactive fluororesin: Resin-NRB (solid content 57%, weight average molecular weight (Mw) 7,500 g / mol, hydroxyl value 2.6%)
* Acrylic resin: self resin -NRB (solid content 50% or more, weight average molecular weight (Mw) 12,500 g / mol, hydroxyl value 0.3%, glass transition temperature 34 캜, acid value 0.03 mg / KOH)
* Polyester resin: self resin -NRB (solid content 80%, weight average molecular weight (Mw) 7,300 g / mol, hydroxyl value 3%)
* Reaction catalyst: dibutyl tin dilaurate
* Wetting additive: BYK-333 (Manufacturer: BYK)
Light stabilizer: Tinuvin 1130 (UV Absorber, UVA),
Tinuvin 292 (Hindered Amine Light Stabilizer, HALS)
* Mixed solvent: mixture of methyl isobutyl ketone and acetate (propylene glycol mono methyl ether acetate)

Experimental Example

In order to examine the physical properties of the paints prepared in the above Examples and Comparative Examples 1 to 6, the following experiment was conducted. The above evaluation was evaluated in the form of a specimen, and the results are shown in Tables 2 and 3 below.

1) Evaluation of spirituality

Measurements were made using a wave scan-DOI from BYK GARDNER at a measurement distance of 10 cm. The results were compared with the CF value, which is an overall grade of gloss, line spirit, and orange fill.

2) gloss evaluation

And measured at 60 DEG using a Micro-TRI-gloss gloss meter manufactured by BYK GARDNER.

3) Adhesion evaluation

The perforations were cut with a cutter so as to reach the surface of the coated film, and 100 square boxes having a size of 2 mm x 2 mm were formed. Adhesive cellophane tape was adhered to the surface and the number of remaining coatings of the square was checked after abruptly peeling at 90 ° .

4) Contact angle evaluation

The contact angle was measured using a drop shape analysis system (KRUSS, Germany) after 10 seconds and 60 seconds of contact angle measurement.

5) Evaluation of ease of decontamination

The prescribed stain test solution (KS A0090 + DIW 1: 1 mixture solution) was applied to the coating film and allowed to stand for 24 hours to check whether the coating film was contaminated.

6) Water resistance evaluation

The specimens were allowed to stand in a water-filled 40 ° C chamber for 240 hours, and appearance changes such as discoloration, cracking, and swelling were observed.

7) Weatherability evaluation

In accordance with the provisions of SAE J 1960, the change in appearance was confirmed after irradiation at 2500 KJ / m ² .

8) Car washer test

(1) The initial gloss was measured at 60 ° and the specimen was mounted on the test stand. The prescribed DUST solution was agitated and continuously sprayed. The polystyrene brush was subjected to 10 cycle reciprocating test at a moving speed of 5 m / min.

② After the evaluation, the specimen was cleaned with soapy water, left at room temperature, and then the surface foreign matter was removed with an organic cleaning agent.

③ After calculating the gloss of the final specimen, the chromaticity change, the gloss retention, and the contact angle change rate were calculated before and after the evaluation.

④ The chromaticity change shows the difference ΔE value after measuring the color difference value by the spin sphere on the surface of the coating film.

The results of the physical properties of the antifouling paints prepared in Examples and Comparative Examples 1 to 6 are shown in Tables 2 and 3 below.

division Image sharpness
(CF value) Polish
(60 DEG) Initial attachment Initial contact angle
(DIW) Decontamination property Water resistance Weatherability Example 70 90 100/100 93 ° to 95 ° Good Good Good Comparative Example 1 70 92 100/100 80 ° to 82 ° N.G Good Good Comparative Example 2 65 85 100/100 103 ° to 105 ° Good Good Good Comparative Example 3 70 82 90/100 97 ° to 100 ° Good N.G N.G Comparative Example 4 60 92 100/100 87 ° to 90 ° Inadequate Good Good Comparative Example 5 70 90 100/100 84 ° to 87 ° Inadequate Good Good Comparative Example 6 75 85 100/100 90 ° to 93 ° Good Good Good

As shown in Table 2, Comparative Example 1, which did not use the reactive fluorine acrylic resin, satisfied the reliability such as appearance, water resistance and weather resistance, but had poor water repellency and a low contact angle, And it was found that the decontamination effect was deteriorated.

division Automatic car wash test Weatherability TEST Color difference change
(? E) Gloss retention
(%) Contact angle retention rate
(%) Color difference change
(? E) Gloss retention
(%) Contact angle retention rate
(%) Example 0.05 92 90 0.63 87 86 Comparative Example 1 0.03 95 - 0.54 88 - Comparative Example 2 0.14 84 85 0.66 74 65 Comparative Example 3 0.04 88 79 1.74 79 60 Comparative Example 4 0.08 80 92 0.67 77 85 Comparative Example 5 0.07 85 90 0.94 72 78 Comparative Example 6 0.06 94 83 0.67 87 80

As shown in Tables 2 and 3, in Comparative Examples 2 and 3, when the reactive fluorine-containing acrylic resin was used in an excess amount, the initial contact angle showed the highest value, but the appearance and physical properties of the coating were not satisfied, It was confirmed that the water resistance and weather resistance of Comparative Example 3, which is the least, were significantly lowered, and the contact angle retention ratio was the lowest.

In Comparative Examples 4 and 5, when a small amount of the reactive fluorine-containing acrylic resin was used, the contact angle was relatively low and the decontamination effect was insufficient. Also, it was confirmed that as the content of hard acrylic resin increases, the gloss retention ratio decreases.

In Comparative Example 6, it was confirmed that the reaction type fluorocarbon resin was used in an appropriate amount to provide a good decontamination effect at a contact angle of 90 ° or more, good water resistance and weatherability, but not high gloss, and particularly low contact angle retention.

On the other hand, in the above example, since the reactive fluorine acrylic resin, the acrylic resin and the polyester resin are optimally used, it has a decontamination effect and satisfies the physical properties such as water resistance and weather resistance, . In addition, since it has a gloss retention ratio and a contact angle retention ratio of 85% or more even in the auto car wash test after weathering, it can be seen that the synthesized reactive fluorine acrylic resin has an early decontamination effect and is maintained to some extent over time .

Therefore, the antifouling coating composition using the fluorine acrylic resin of the present invention can improve physical properties such as stain resistance, weather resistance, chemical resistance and durability.

Claims (14)

10 to 30% by weight of a fluorine-containing acrylic resin;
30 to 50% by weight of an acrylic resin;
5 to 15% by weight of a thermoplastic resin;
0.1 to 0.3% by weight of a reaction catalyst;
0.1 to 1% by weight of a wetting additive;
1 to 2% by weight of light stabilizer; And
10 to 30% by weight of a mixed solvent;
By weight based on the weight of the fluororesin.
The method according to claim 1,
Wherein the fluorine-containing acrylic resin comprises 3 to 10% by weight of a fluorine-containing acrylic monomer relative to the total fluorine-containing acrylic resin.
3. The method of claim 2,
The fluorine acrylic monomer may be CF ₂ Wherein the fluorine-containing acrylic resin comprises 6 functional groups.
[Chemical Formula]

The method according to claim 1,
Wherein the fluorine-containing acrylic resin has a weight average molecular weight (Mw) of 5,000 to 10,000 g / mol and a hydroxyl group content of 0.5 to 3%.
The method according to claim 1,
The acrylic resin has a weight average molecular weight (Mw) of 9,000 to 15,000 g / mol, an acid value of 0.01 to 0.1 mgKOH / g, a hydroxyl group content of 0.01 to 1% and a glass transition temperature (Tg) Wherein the antifouling coating composition comprises a fluorine-containing acrylic resin.
The method according to claim 1,
Wherein the thermoplastic resin has a weight average molecular weight (Mw) of 3,000 to 10,000 g / mol, a hydroxyl value of 2 to 4% and a glass transition temperature (Tg) of 50 to 100 ° C. Coating composition.
The method according to claim 1,
Wherein the mixed solution is an ester, a ketone or a mixture of the two.
Wherein the organic solvent contains 3 to 10 wt% of a fluorine-containing acrylic monomer, 10 to 20 wt% of an acrylic monomer having an aliphatic group, 15 to 20 wt% of a methacrylic monomer having an aliphatic group, 5 to 10 wt% of an acrylic monomer having an aromatic group, Preparing a fluorine-containing acrylic resin by mixing 5 to 15 wt% of a methacrylic monomer, 0.5 to 1.5 wt% of a methacrylic monomer having a carboxyl group, and 1 to 3 wt% of a radical initiator, Adding a resin, a reaction catalyst, a wetting additive, a light stabilizer and a mixed solvent to prepare an antifouling paint composition;
By weight based on the total weight of the fluororesin.
9. The method of claim 8,
Wherein the organic solvent is at least one selected from the group consisting of toluene, xylene, and ketone.
9. The method of claim 8,
Examples of the acrylic acid ester monomer include methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tertiary butyl methacrylate, 2-ethylhexyl methacrylate Wherein at least one monomer selected from the group consisting of benzyl methacrylate, phenyl methacrylate, stearic methacrylate, cyclohexyl methacrylate and lauryl methacrylate is bonded to the fluorine-containing acrylic resin A method of producing an antifouling paint composition using the same.
9. The method of claim 8,
Wherein the thermoplastic resin is a polyester resin. ≪ RTI ID = 0.0 > 21. < / RTI >
9. The method of claim 8,
The radical initiator may be one or more selected from the group consisting of tertiary butyl peroxybenzoate, tertiary butyl peroxy-2-ethyl hexanoate, and tertiary amyl peroxy-2-ethyl hexanoate Wherein the fluorine-containing acrylic resin is used as an antifouling paint composition.
9. The method of claim 8,
The step of preparing the antifouling paint composition comprises 10 to 30% by weight of a fluororesin, 30 to 50% by weight of an acrylic resin, 5 to 15% by weight of a thermoplastic resin, 0.1 to 0.3% by weight of a reactive catalyst, 0.1 to 1% 1 to 2% by weight of a light stabilizer and 10 to 30% by weight of a mixed solvent.
9. The method of claim 8,
Wherein each of the above steps is carried out at a temperature ranging from 100 to 150 ° C for 30 minutes to 5 hours.