KR101480105B1 - Aqueous anti-corrosive and high weatherproof silicone acrylic paints using dissolved hydrogen water - Google Patents

Abstract

The present invention relates to aqueous anti-corrosive and high weatherproof silicone acrylic paints using dissolved hydrogen water, which does not include an organic solvent harmful to the body, which is environmentally friendly, and has excellent mechanical strength at room temperature, and excellent anti-bacteria, anti-corrosion and anti-fouling properties. The aqueous anti-corrosive and high weatherproof silicone acrylic paints using dissolved hydrogen water according to the present invention is manufactured by mixing 10-20 wt% of dissolved hydrogen water; 30-40 wt% of silicon acrylic resin; 30-35 wt% of titanium dioxide (TiO2); 1-2 wt% of zinc powder; 11.2-13.0 wt% of additives; 1-2.5 wt% of rare earth resources; 2.5-3.5 wt% of a thickener; and 0.1-1 wt% of an anti-foaming agent, wherein the dissolved hydrogen water has pH 7.5-8.0, an oxidation-reduction potential (ORP) value of -250 mv to -450 mv, and 400-1,000 ppb of dissolved hydrogen.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water-soluble anti-corrosive and high-weathering silicone acrylic paint using dissolved hydrogen peroxide,

More particularly, the present invention relates to a water-soluble, rust-preventive and high-weathering silicone acrylic paint using dissolved hydrogen water, and more particularly, Soluble rust-preventive and high-weathering silicone acrylic paint using dissolved water having excellent stain resistance.

Generally, a paint is a kind of material used for the purpose of protection of an object surface, change in appearance and shape of an object, dispersion of wavelength, reflection and absorption of electromagnetic waves, electromagnetic wave shielding, etc., Which is a flowable chemical that imparts desired performance to an object.

In particular, since the 1980s, high-weather-resistant paints have begun to attract attention with construction areas such as large structures, outdoor structures, and large bridges that require durability, chemical resistance, and corrosion resistance. Accordingly, development of a fluorine resin, a silicone resin, an acrylic resin, a urethane resin, and a ceramic inorganic resin has been continuously carried out.

First, the fluororesin is developed using polyvinylidene fluoride. Although the fluororesin is the most excellent resin having a weather resistance of 20 years, it is expensive, has a drawback of causing contamination due to environmental changes, has a low hardness, and has a drawback that the working conditions are difficult.

Secondly, the acrylic resin has excellent mechanical properties but has a disadvantage that the weather resistance is significantly lower than that of fluorine or silicon.

Third, the ceramic inorganic resin is excellent in nonflammability, stain resistance, and weatherability by using an inorganic ceramic material, but cracks are formed in the formation of the coating film, and the coating film must be formed by heating and drying at a high temperature.

Accordingly, there is a demand for a novel resin for forming a coating film having mechanical properties while being spun at low cost and capable of natural curing.

Korean Patent No. 10-0981613 has been developed to solve such a problem. The above-mentioned prior patent discloses a silicone-acrylate resin produced by polymerization reaction of an alkoxysilane compound having high weatherability characteristics and an acrylate monomer having good mechanical properties, and is capable of natural curing with weatherability. However, And it is not suitable for a place requiring adhesion, stain resistance, corrosion resistance and rust prevention property like iron structure and non-ferrous metal structure.

1. Korean Patent No. 10-0981613 entitled " Method for producing high-weathering silicone-acrylate resin and method for producing two-pack type natural curing paint "(registered on September 29, 2010)

Accordingly, an object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a semiconductor device, which is environmentally friendly and mechanically Resistant anti-corrosive and high-weathering silicone acrylic paint using dissolved water having excellent strength, antimicrobial activity, rust prevention property, corrosion resistance and stain resistance.

The water-soluble, rust-preventive and highly weatherable silicone acrylic paint using dissolved hydrogen-containing water according to the present invention comprises 10 to 20% by weight of dissolved water; 30 to 40% by weight of a silicone acrylic resin; Titanium dioxide (TiO ₂₎ 30 to 35% by weight; 1 to 2% by weight of zinc powder; 11.2 to 13.0% by weight of an additive; 1 to 2.5% by weight rare earth; 2.5 to 3.5% by weight of a thickener; And 0.1 to 1% by weight of an antifoaming agent are mixed; The dissolved hydrogenated water has a pH of 7.5 to 8.0, an oxidation-reduction potential (ORP) of -250 mv to -450 mv, and a dissolved hydrogen of 400 to 1,000 ppb.

As described above, the water-soluble, rust-preventive and high-weathering silicone acrylic paint using dissolved hydrogen water according to the present invention does not contain an organic solvent harmful to the human body when mixing silicon acrylic resin, titanium dioxide and zinc powder, .

Further, since the water is mixed with the use of dissolved hydrogenated water, it has an advantage of being excellent in erosion resistance.

In addition, zinc powder is added, which is excellent in rustproofing property, and has an advantage of excellent stain resistance, water repellency and tensile properties.

In addition, it has an advantage of being able to form a uniform coating film without causing curtaining or lifting, and ensuring compatibility when the coating is repaired on all existing coating films.

In addition, since it is excellent in rustproofing property and excellent in penetration ability, it is possible to form a new coating film on a rust after a simple after-treatment, so that it can be applied to steel, And the like.

Hereinafter, the water-soluble, rust-preventive and highly weatherable silicone acrylic paint using dissolved hydrogen water according to the present invention will be described in detail with reference to the detailed description of the embodiments. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and they may vary depending on the intentions or customs of the client, the operator, the user, and the like. Therefore, the definition should be based on the contents throughout this specification.

The water-soluble, rust-preventive and high weather-resistant silicone acrylic paint using dissolved hydrogen-containing water according to the present invention comprises 10 to 20% by weight of dissolved hydrogen, 30 to 40% by weight of silicon acrylic resin, 30 to 35% by weight of titanium dioxide (TiO ₂ ) 1 to 2% by weight of zinc powder, 11.2 to 13.0% by weight of additives, 1 to 2.5% by weight of rare earths, 2.5 to 3.5% by weight of a thickener and 0.1 to 1% by weight of an antifoaming agent.

Here, the dissolved hydrogen is used in a pH range of 7.5 to 8.0, an ORP (Oxidation-Reduction Potential) value of -250 mv to -450 mv, and a dissolved hydrogen of 400 to 1,000 ppb. Such dissolved hydrogen water is contained in an amount of 10 to 20% by weight based on the total weight of the composition, so that the problem of corrosion resistance can be compensated and a superior function can be exhibited. If the dissolved hydrogen is less than 10 wt%, the corrosion resistance is lowered. If the dissolved hydrogen is more than 20 wt%, the raw material is too expensive.

The silicone acrylic resin is a covalently bonded resin of silicon and acryl, and is a chemically stable high-performance siloxane-bonded resin having a molecular weight of silicon of 250 or more. Such a silicone acrylic resin is contained in an amount of 30 to 40% by weight based on the total weight of the composition, thereby completing the problems of weather resistance, stain resistance and adhesion, which are disadvantages of the acrylic resin, so that excellent functions can be exhibited. If the amount of the silicone acrylic resin is less than 30% by weight, the water resistance, adhesion, stain resistance and rustproofing property are deteriorated. If the amount of the acrylic acrylic resin exceeds 40% by weight, the cost of the raw material becomes too high.

In addition, the titanium dioxide (TiO ₂ ) is contained in an amount of 30 to 35% by weight based on the total weight of the composition, and a paint of a desired color is displayed. If the titanium dioxide is less than 30% by weight, If the amount of the titanium dioxide exceeds 35% by weight, the cost of the raw material becomes too high.

In addition, the zinc powder uses a flat zinc having a maximum length of one side of 13 μm or less and contains 1 to 2% by weight based on the total weight of the composition, thereby completing the problems of rust resistance and water resistance, which are disadvantages of acrylic resin So that a superior function can be exhibited. If the amount of the zinc powder is less than 1 wt%, the salt resistance and the rust prevention property are deteriorated. If the zinc powder is more than 2 wt%, the strength of the coating film is lowered and the cost of the raw material is increased.

Further, the rare earth is CePO ₄ And The LaPO ₄ BaSO _4, ZnO, bentonite, and diatomaceous earth. The rare earth is contained in an amount of 1 to 2.5% by weight based on the total weight of the composition to increase the antibacterial activity and deodorization power. When the rare earth is less than 1% by weight, If the amount of the rare earth is more than 2.5% by weight, the raw material cost becomes too high.

Also, as the thickener, "SN-636 of Sanofkosha" is contained in an amount of 2.5 to 3.5% by weight based on the total weight of the composition to improve fluidity and smoothness. When the content of the thickener is less than 2.5% by weight, If the amount of the thickener exceeds 3.5% by weight, the amount of dissolved hydrogen is further required because of the increase of the viscosity, which may result in poor physical properties.

The defoaming agent may be used in an amount of 0.1 to 1% by weight based on the total weight of the composition to remove harmful air bubbles. When the defoaming agent content is less than 0.1% by weight, a phenomenon of deterioration of gloss, deterioration of quality, If the amount of the antifoaming agent is more than 1% by weight, the gloss is lowered and the cost of the raw material becomes too high.

The additive also comprises from 11.2 to 13.0% by weight based on the total weight of the composition, wherein the additive comprises from 0.1 to 0.5% by weight of a dispersant, from 2 to 3% by weight of a cryoprotectant, from 0.1 to 0.5% by weight of a wetting agent, Texanol) and 4 to 6% by weight of zeolite.

On the other hand, if the amount of the dispersing agent contained in the additive is in the range of 0.1 to 0.5% by weight, if the dispersing agent is less than 0.1% by weight, aggregation failure occurs. If the dispersing agent is more than 0.5% by weight, the water resistance is lowered, It can be a factor.

In addition, the cryoprotectant contained in the additive is an auxiliary agent used to prevent freezing during the manufacture of paints. The amount of the cryoprotectant contained in the additive is 2 to 3% by weight. If the amount of the cryoprotectant is less than 2% by weight, the effect of preventing the freezing is deteriorated and the durability is deteriorated. It is possible to separate the cryoprotectant and prevent freezing of the paint.

The amount of the wetting agent contained in the additive is 0.1 to 0.5% by weight. If the amount of the wetting agent is less than 0.1% by weight, appearance failure may occur. If the amount of the wetting agent is more than 0.5% by weight, The manufacturing cost may be increased.

TEXANOL contained in the additive is used as a film forming agent which is a kind of low volatile solvent and is used in an amount of 3 to 5 wt%. If the Texanol is less than 3 wt%, the formation and adhesion strength And if it is used in an amount of more than 5% by weight, the formation of a separate coating film may occur during the formation of the coating film, thereby hindering formation of the coating film of the coating composition.

The zeolite included in the additive is a white translucent porous mineral which has a property of strongly adsorbing a polarized component, and thus it is widely used as a deodorant for air purification as well as adsorbing toxic substances. The amount of the zeolite used is 4 to 6 wt% If the amount of the zeolite is less than 4% by weight, the ability to purify air may be deteriorated. If the zeolite is used in an amount exceeding 6% by weight, the manufacturing cost may increase.

Hereinafter, the present invention will be described in more detail with reference to Examples. It will be apparent to those skilled in the art that this embodiment is for illustrative purposes only and that the scope of the present invention is not construed as being limited by the above embodiments.

Example: Preparation of water-soluble rust-preventive and high weather-resistant silicone acrylic paint using dissolved hydrogenated water

First, a mixture of 14.73 wt% of dissolved hydrogen, 35.57 wt% of silicon acrylic resin, 32.03 wt% of titanium dioxide, 1 wt% of zinc powder, 11.73 wt% of additive, 2 wt% of rare earth, 2.84 wt% of thickener, 0.1% by weight of antifoaming agent is prepared.

Then, a wetting agent, a thickener, a dispersing agent, a defoaming agent and a rare earth are put into a mixing vessel and mixed to form a homogeneous liquid phase. Then, titanium dioxide is added and stirred until a homogeneous liquid phase is obtained.

Thereafter, the silicone acrylic resin and the zinc powder are put into a homogeneously stirred liquid phase and stirred until it becomes homogeneous. Thereafter, a cryoprotectant, texanol and zeolite are added, dissolved water is gradually added, and the mixture is homogeneously stirred . The stirring speed at this time is preferably 100 to 1,800 rpm.

Test results on the performance of the water-soluble anticorrosive and high weather-resistant silicone acrylic paint using dissolved hydrogen water according to the present invention prepared according to the above Examples are shown in Table 1 below.

Test Items Example Comparative Example (Conventional product) Remarks Viscosity (KU) 150KU 86KU importance 1.128 1.216 Thermal stability
(60 DEG C, 120 hours) Good Good PH 9.0 8.5 Washability (1200 times) Good usually Stain resistance clear none Housing construction standards Weatherability clear none 1000 hours Chemical resistance clear Bad _{5% NaOH, 5% H 2} SO 4
168 hours immersion Salt spray test clear Bad 120 hours Dipping, cracking, swelling, peeling, rusting Attachment Good usually Saltwater clear Bad 720 hours immersion

In Table 1, the chemical resistance was immersed in a solution of 5% NaOH and 5% H ₂ SO ₄ for 168 hours.

In addition, the salt spray test was carried out in a solution of NaCl 5% / 35 ° C for 120 hours

In addition, the adhesion test is to be performed in accordance with KSM ISO 2409, and cut intervals 11 times in a lattice pattern in different directions, with the cut intervals in the different directions being equal to 2 mm.

Analysis of the results of Table 1 reveals that the water-soluble anti-corrosive and high weathering silicone acrylic paint using dissolved hydrogen water according to the present invention has functions of anti-corrosive property, stain resistance, weather resistance, chemical resistance, adhesion property and salt water resistance, Lt; / RTI >

In addition, by applying to existing steel structures, corrosion resistance of steel structures can be prevented by giving excellent rust resistance, stain resistance, weather resistance, chemical resistance, adhesion and salt water resistance, and the steel structures can be permanently protected from external physical and chemical influences have.

It can also be used for painting non-ferrous metals such as aluminum and zinc.

On the other hand, in the stain resistance test, 10 wt% of contaminants were added to distilled water, and a uniform dispersion was made using a mixer. The constituent elements and the mass ratio (%) of the contaminants are shown in Table 2 below.

Kinds Mass ratio (%) Carbon black 5.0 Clay pigment 67.5 Horto Mortar 22.5 Silica sand 5.0

In Table 2, the contaminants were coated so as to sufficiently cover the specimens, maintained in a thermostatic chamber at 80 캜 for 1 hour, and irradiated with ultraviolet light of 1 mW / cm 2 for 24 hours.

The results of separate tests on the performance of the water-soluble rust-preventive and high-weatherability silicone acrylic paint using the dissolved hydrogen water according to the present invention prepared according to the above Examples are shown in Table 3 below.

Test Items Test result Exam conditions dry
Touch 10 minutes KSM 5000-'03 Hardening 3 hours KSM ISO 2813-'92 Gloss (60 °) 90 KSD 6711-'92 Pencil hardness 2H KSF 4715-'01 Water resistance clear 20 ℃, immersion for 1 month Abdominal aquatic clear Boiling water 1 hour Water temperature clear 50 ° C, flooded for 7 days Thermal Repeatability clear 2 Cycle (80 ° C! -20 ° C) Bond strength (N / cm 2) 194 KSF 4715-'01 Accelerated weathering test
(ws, 1000 hours) clear KSM 6010-'04 Saltwater
(20 ± 1 ° C, 5% Nacl, flooded for 720 hours) clear KSM 5000-'03

Analysis of the results of Table 3 reveals that the water-soluble anti-rust and high weatherproof silicone acrylic paint using dissolved hydrogen water according to the present invention is excellent in water resistance, water resistance, water resistance, cold repetition resistance, weather resistance and flame resistance.

Hereinafter, the test results of the surface elasticity (SAW) test of the Korean Chemical Testing Institute for the aqueous rust-preventive and high-weatherable silicone acrylic paint using the dissolved hydrogen water according to the present invention will be examined.

Table 4 shows the SAW test results of the water-soluble anti-rust and high-weatherability silicone acrylic paint using dissolved hydrogen water according to the present invention prepared according to the present invention.

Test result Test Items unit Results Test Methods T-VOCs emission ㎎ / ㎡.h 1.645 Indoor air quality process test standard: 2008 Formaldehyde emission ㎎ / ㎡.h Less than 0.005 Indoor air quality process test standard: 2008 VOCs content g / L 0.03 KSM ISO 11890-2: 2007 VACs content wt% Not detected ASTM D 3257-01 Pb Mg / kg Not detected ISO 3856/1: 1984 CD Mg / kg Not detected ISO 3856/4: 1984 Hg Mg / kg Not detected ISO 3856/7: 1984 As Mg / kg Not detected ISO 3856/7: 1984 Sb Mg / kg Not detected ISO 3856/2: 1984 Cr (VI) Mg / kg Not detected ISO 3856/5: 1984 TPT (organotin compound) Mg / kg Not detected DIN 38407-13 (GC / MS) TBT (organotin compound) Mg / kg Not detected DIN 38407-13 (GC / MS) F Mg / kg Not detected EN 14582 (IC) Cl Mg / kg Not detected EN 14582 (IC) Br Mg / kg Not detected EN 14582 (IC) I Mg / kg Not detected EN 14582 (IC)

Detection limits: F (50 mg / kg), Cl (50 mg / kg), Br (50 mg / kg), I (50 mg /

 VOCs (0.01 g / L), VACs (0.001 wt%), TPT (5 mg / kg), TBT (5 mg /

Detection limit: Pb, Sb (5 mg / kg), Cd, Hg, Cr (Vl) (2 mg / kg)

* VACs: Volatile Aromatic Hydrocarbons Toluene, thylbenzene, Xylene,

Trimethylbenzene, Tridecane, Tetramethylbenzene, Isopropylbenzene.

As described above, the water-soluble, rust-preventive and high-weathering silicone acrylic paint using dissolved hydrogen water according to the present invention is eco-friendly because it does not contain an organic solvent harmful to human body when mixing silicon acrylic resin, titanium dioxide and zinc powder. In addition, zinc powder is added, which is excellent in rustproofing property, and is excellent in water resistance, water resistance, water resistance, cold / heat repellency, and flame resistance. In addition, since the coating is excellent in adhesion, it is possible to form a uniform coating film without causing curling or lifting during repair coating on all existing coating films, thus ensuring compatibility. In addition, since it is excellent in rustproofing property and excellent in penetration ability, it is possible to form a new coating film on a rust after a simple after-treatment, so that it can be applied to steel, And so on.

 While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Various changes, modifications or adjustments to the example will be possible. Therefore, the scope of protection of the present invention should be construed as including all changes, modifications, and adjustments that fall within the spirit of the technical idea of the present invention.

Claims (3)

10 to 20% by weight of dissolved water;
30 to 40% by weight of a silicone acrylic resin;
Titanium dioxide (TiO ₂₎ 30 to 35% by weight;
1 to 2% by weight of zinc powder;
11.2 to 13.0% by weight of an additive;
1 to 2.5% by weight rare earth;
2.5 to 3.5% by weight of a thickener; And
0.1 to 1% by weight of an antifoaming agent are mixed and prepared;
Characterized in that the dissolved hydrogenated water has a PH of 7.5 to 8.0, an ORP (Oxidation-Reduction Potential) value of -250 mv to -450 mv, and a dissolved hydrogen of 400 to 1,000 ppb, Water - soluble anti - rust and high weatherability silicone acrylic paint.
The method according to claim 1,
Preferably,
0.1 to 0.5% by weight of a dispersant;
2 to 3% by weight of a cryoprotectant;
0.1 to 0.5% by weight of a wetting agent;
3-5 wt% Texanol; And
Zeolite and 4 to 6% by weight of zeolite.
The method according to claim 1,
Wherein the rare earth is CePO ₄ And The LaPO ₄ BaSO _4, ZnO, bentonite, and diatomaceous earth. The water-soluble, rust-preventive and highly weatherable silicone acrylic paint using dissolved hydrogen water.