KR101964928B1 - Lane paint for pavement and manufacturing method thereof - Google Patents

Abstract

The present invention is 40 to 63% by weight of the resin silane-modified acrylic resin is mixed; 1 to 3% by weight of Coupling agent composed of a mixture of one or two or more selected from vinyl trichloro silane, vinyl trimethoxy silane and Glycidoxy propyl trimethoxy silane; 30 to 55% by weight of an inorganic filler composed by mixing one or more of calcium carbonate (CaCO 3), magnesium oxide, and silica flour; 0.1-1% by weight of UV stabilizers selected from Benzophenone, Benzotriazole, Oxanilides; 1 to 3% by weight of a photocatalyst selected from Anatase TiO2, rutile TiO2, ZnO, Nb2O5, SnO2, ZrO2, Cds, and ZnS; by presenting a lane coating for road paving, comprising: visibility, durability, weatherability , Excellent wear resistance, chemical resistance and long-term common use, easy to apply to asphalt and concrete pavement surface, strong adhesion, fast drying, does not contain organic solvents harmful to human body, moisture that causes deterioration In order to resist UV and heat, the coating film has a high crosslinking density and high hardness, and has excellent adhesion with highly reflective glass beads attached for increased visibility, sulfur dioxide, nitrogen oxides, oil components, bacteria and bacteria. Pollutants such as these can be decomposed immediately, and the incorporation of a photocatalyst can provide superhydrophilicity to prevent rain from adhering to the surface of the coating film.

Description

Lane coating for road pavement and its manufacturing method {LANE PAINT FOR PAVEMENT AND MANUFACTURING METHOD THEREOF}

TECHNICAL FIELD The present invention relates to the field of construction, and more particularly, to a lane paint for road pavement and a method of manufacturing the same.

The coating film formed by the application of the paint to the lanes of the pavement is degraded due to internal and external factors with the passage of the common period, resulting in deterioration in performance.

In order to be evaluated as an excellent road paving lane paint, it is required to have the following physical properties.

First, it should be excellent in visibility, durability, weather resistance, wear resistance, chemical resistance and long-term commonality.

Second, the application to asphalt and concrete pavement surface should be simple, strong adhesion, and fast drying.

Third, it should not contain organic solvents harmful to humans.

Fourth, in order to resist moisture, ultraviolet rays and heat that cause deterioration, the crosslinking density of the coating film must be dense and high in hardness.

Fifth, it should be excellent in adhesion with the high reflection glass beads attached to increase the visibility.

Sixth, it must be able to immediately decompose pollutants such as sulfurous acid gas, nitrogen oxides, oil components, bacteria and bacteria.

Seventh, it should have super hydrophilicity so that rainwater does not adhere to the surface of the coating film.

However, in the case of the conventional road pavement lane coating, it has been pointed out as a problem because it has not been developed to satisfy all of the above conditions.

The present invention has been derived to solve the above problems, excellent visibility, durability, weather resistance, wear resistance, chemical resistance and long-term common use, easy to apply to asphalt and concrete pavement surface, strong adhesion, High-reflective glass ball that dries quickly and has high crosslinking density and high hardness, and is resistant to moisture, ultraviolet rays, and heat that cause deterioration without containing organic solvents that are harmful to the human body. The road paving lane has excellent adhesion with beads, and can instantly decompose pollutants such as sulfurous acid gas, nitrogen oxides, oil components, bacteria, bacteria, etc., and has a super hydrophilic property that rain water does not adhere to the surface of coating due to the mixing of photocatalyst. The purpose of the present invention is to propose a paint and a method of manufacturing the same.

In order to solve the above problems, the present invention is 40 to 63% by weight of the resin silane-modified acrylic resin is mixed; 1 to 3% by weight of Coupling agent composed of a mixture of one or two or more selected from vinyl trichloro silane, vinyl trimethoxy silane and Glycidoxy propyl trimethoxy silane; 30 to 55% by weight of an inorganic filler composed by mixing one or more of calcium carbonate (CaCO 3), magnesium oxide, and silica flour; 0.1-1% by weight of UV stabilizers selected from Benzophenone, Benzotriazole, Oxanilides; Anatase TiO2, rutile TiO2, ZnO, Nb2O5, SnO2, ZrO2, Cds, ZnS of the photocatalyst selected from 1 to 3% by weight; to provide a road coating for road paving characterized in that it comprises a.

The resin is 60 to 73% by weight of the silane-modified acrylic resin, which is a quaternary polymer formed by addition polymerization of an acrylic monomer and a reactive silicone monomer; 20 to 35 wt% of a polymethylmethacrylate (PMMA) copolymer; 1-3 wt% of a wet dispersion additive composed by mixing one or more of sodium polyacrylate, sodium lignin sulfonate, polyethylene glycol phenyl ether; It is preferable to include; 1 to 2% by weight of anti-settling agent composed of one or two or more of sodium caseinate, Acetylene glycol, sodium polyacrylate.

It is preferable that the said acryl monomer is comprised by one or two or more of MMA, BA, BMA, MAA, TMPTA.

It is preferable that the said acryl monomer is comprised by mixing of MMA and BA.

The reactive silicone monomer is preferably composed of one or a mixture of two or more of 3-methacryoxypropyl trimethoxysilane (MPTS), methylchlorosilane and phenylchlorosilane.

As the curing agent, it is preferable to further include 2 to 5 parts by weight of solid or liquid benzoyl peroxide relative to the total.

The present invention provides a method for producing the paint, the step of injecting nitrogen gas after the acrylic monomer in the reactor; Uniformly injecting the silicone monomer into the reactor at a temperature of 75 to 85 ° C. at a rate of 2 to 4 ml / min for 1.5 to 2.5 hours; Injecting the hybrid polymer into the reactor and maintaining the mixture at a temperature of 75 to 85 ° C. for 20 to 40 minutes; Injecting the wet dispersion additive and the sedimentation inhibitor into the reactor, and heating the temperature to 95 to 105 ° C; Removing the unreacted material, and drying the vacuum at 45 ~ 55 ℃, 3 ~ 5mmHg conditions to prepare the resin suggests a method for producing a lane coating for road packaging comprising a.

Adding the coupling agent to the resin and stirring for 5 to 15 minutes at 20 to 30 ° C. and 900 to 1,100 rpm conditions; Adding the photocatalyst and agitating at a speed of 1,800 to 2,200 rpm and then grinding the particle to have a particle size of 10 μm or less; After adding the inorganic filler and the UV stabilizer, the step of stirring at a speed of 1,800 ~ 2,200rpm so that the particle size is 80㎛ or less; preferably.

The present invention has excellent visibility, durability, weather resistance, abrasion resistance, chemical resistance and long-term common use, easy to apply to asphalt and concrete pavement surface, strong adhesion, fast drying, does not contain harmful organic solvents In addition, in order to resist moisture, ultraviolet rays and heat that cause deterioration, the crosslinking density of the coating film is dense and high in hardness, and has excellent adhesion to high reflective glass beads adhered to increase visibility. The present invention provides a road coating lane coating material and a method of manufacturing the same, which can immediately decompose pollutants such as oxides, oil components, bacteria, bacteria, and the like, with the addition of a photocatalyst to prevent rain from adhering to the surface of the coating film.

1 is a photograph of the wear resistance test results of Comparative Example 1.
Figure 2 is a graph of the wear resistance test results of Comparative Example 1.
Figure 3 is a photograph of the wear resistance test results of the embodiment of the present invention.
Figure 4 is a graph of the wear resistance test results of the embodiment of the present invention.
Figure 5 is a photograph of the outdoor exposure pollution degree test results of the embodiment of the present invention and Comparative Example 2.

Hereinafter, embodiments of the present invention will be described in detail.

Lane coating material for road pavement according to the present invention is basically, 40 to 63% by weight of the resin silane-modified acrylic resin is mixed; 1 to 3% by weight of Coupling agent composed of a mixture of one or two or more selected from vinyl trichloro silane, vinyl trimethoxy silane and Glycidoxy propyl trimethoxy silane; 30 to 55% by weight of an inorganic filler composed by mixing one or more of calcium carbonate (CaCO 3), magnesium oxide, and silica flour; 0.1-1% by weight of UV stabilizers selected from Benzophenone, Benzotriazole, Oxanilides; 1 to 3% by weight of a photocatalyst selected from anatase TiO 2, rutile TiO 2, ZnO, Nb 2 O 5, SnO 2, ZrO 2, Cds, and ZnS.

The resin is 60 to 73% by weight of the silane-modified acrylic resin, which is a quaternary polymer formed by addition polymerization of an acrylic monomer and a reactive silicone monomer; 20 to 35 wt% of a polymethylmethacrylate (PMMA) copolymer; 1-3 wt% of a wet dispersion additive composed by mixing one or more of sodium polyacrylate, sodium lignin sulfonate, polyethylene glycol phenyl ether; It comprises 1 to 2% by weight of anti-settling agent composed of one or two or more of sodium caseinate, Acetylene glycol, sodium polyacrylate.

The silane-modified acrylic resin is a quaternary copolymer formed by addition polymerization of an acrylic monomer and a reactive silicone monomer.

Acrylic monomer is composed of one or more of MMA, BA, BMA, MAA, TMPTA, or a mixture of two or more. MMA has a low Tg and can provide flexibility of the coating film, and a TMA can have high hardness and weather resistance. It is preferable to mix and use BA.

As the reactive silicone monomer, one composed of MPTS (3-methacryoxypropyl trimethoxysilane), methylchlorosilane, or phenylchlorosilane, which is excellent in reactivity with an acrylic monomer and can improve weather resistance and adhesion with free beads, may be used.

As the hybrid polymer, the Tg is 45 to 75 ° C, the viscosity index is 10 to 50 cm 3 / g, the molar mass is 40,000 to 70,000 g / mol, the kinematic viscosity is 100 to 300 mPas, and the acid value in order to improve the durability, weather resistance and adhesion of the coating film. Poly methylmethacrylate (PMMA) having a characteristic of 5-12 mg KOH / g and a density of 1-1.1 g / cm 3 is used.

As the wet dispersion additive, in order to enable uniform dispersion of the solid inorganic material to the liquid resin and to improve long-term storage, the amine number is 5-20 mg KOH / g, the density is 0.95-1.001 g / ml, and the nonvolatile component is 40 One having a hydroxyl group having a flash point of ˜60% and a flash point of 40 to 60 ° C. and having a functional group having excellent affinity with the pigment is composed of one or a mixture of two or more of sodium polyacrylate, sodium lignin sulfonate and polyethylene glycol phenyl ether.

As an anti-settling agent, in order to prevent sedimentation when using an inorganic filler, casein having an amine value of 40 to 70 mg KOH / g, an acid value of 50 to 70 mg KOH / g, a density of 0.95 to 1.02 g / ml, and a flash point of 90 to 110 ° C One consisting of sodium acid, acetylene glycol, sodium polyacrylate, or a mixture of two or more is used.

Coupling agents are chemicals that have two different reactors, organic and inorganic, in one molecule, which enhances the bond strength and adhesion of the composition and enhances the bond between the organic polymer and the inorganic filler.

To this end, vinyl trichlorosilane and vinyl trimethoxy silane have characteristics of 200 ~ 600 molecular weight, Boiling point 2000 ~ 230 ℃, Active content 99%, Refractive Index (25 ℃) 1.420 ~ 1.430, Density 0.95 ~ 0.97g / cm3 For example, one selected from Glycidoxy propyl trimethoxy silane or a mixture of two or more thereof may be used.

Inorganic fillers include calcium carbonate (CaCO3) with specific gravity of 2.7, particle size of 1 to 50 µm, thermal conductivity of 0.006 to 0.008 (cal / cm2-sec- ℃ -cm), and specific gravity of 3.2 to prevent flowability and economic efficiency 3.6, magnesium oxide with a particle size of 250 to 325 mesh and a thermal conductivity of 0.0001 to 0.0004 (cal / cm 2 -sec- ℃ -cm), SiO ₂ or CaCO ₃ It is composed of one or more of the silica powder inorganic fillers, which is 95% or more and finely divided silica, which has a medium particle size of 2 to 30 µm.

UV stabilizers are used to prevent physical and chemical oxidation by light, and use one of Benzophenone, Benzotriazole, and Oxanilides with a molecular weight of 300 to 600.

Photocatalyst is a material that promotes photochemical reaction by using light as energy. When it receives light, it becomes active, otherwise it remains inactive.

As the photocatalyst, one of Atanaze TiO 2, rutile TiO 2, ZnO, Nb 2 O 5, SnO 2, ZrO 2, Cds, and ZnS is used to improve weather resistance.

As a hardening | curing agent, 2-5 weight part of solid or liquid benzoyl peroxide is used with respect to the coating weight.

It is a white crystal or powder whose molecular formula is C ₁₄ H ₁₀ O ₄ , which has a strong oxidation power and is useful for radical polymerization during the bonding of polymers.

Hereinafter, the manufacturing method of the paint by this invention is demonstrated.

After introducing the acrylic monomer into the reactor, nitrogen gas is injected at a rate of about 30ml / min.

The silicon monomer is uniformly added to the reactor at a temperature of 75 to 85 ° C. at a rate of 2 to 4 ml / min for 1.5 to 2.5 hours.

The copolymer is introduced into the reactor and maintained at 75 to 85 ° C. for 20 to 40 minutes.

A wet dispersion additive and a sedimentation inhibitor are added to the reactor, and the temperature is raised to 95 to 105 ° C.

The unreacted substance is removed and dried under reduced pressure at 45 to 55 ° C. and 3 to 5 mmHg to prepare a resin in which a silane-modified acrylic resin is mixed.

Add coupling agent to the resin and stir for 5 to 15 minutes at 20 ~ 30 ℃ and 900 ~ 1,100rpm.

The photocatalyst is added and stirred at a speed of 1,800 ~ 2,200rpm, and then pulverized to have a particle size of 10 μm or less.

After adding the inorganic filler and the UV stabilizer, the mixture is stirred at a speed of 1,800 to 2,200 rpm so that the particle size becomes 80 µm or less.

Hereinafter, the experimental example for demonstrating the physical property of the paint by this invention is demonstrated.

Components and preparation methods of the embodiment of the present invention are as follows.

64 weight% of silane modified acrylic resin; 33 weight percent of interpolymer (PMMA); 2 wt% of a wet dispersion additive (sodium polyacrylate); 1% by weight of anti-settling agent (sodium caseate); was mixed to prepare a resin as follows.

An acrylic monomer (MMA, BA) was added to the reactor and nitrogen gas was injected at a rate of 30 ml / min.

MPTS (3-methacryoxypropyl trimethoxysilane) was uniformly added for 2 hours at a rate of 3 ml / min at a temperature of about 80 ℃.

PMMA (Poly methylmethacrylate), a hybrid polymer, was added and maintained at the same temperature for 30 minutes to allow the reaction to occur.

A wet dispersion additive (sodium polyacrylate) and a sedimentation inhibitor (sodium caseate) were added and the temperature was raised to 100 ° C.

Purified with a large amount of normal hexane to precipitate to remove the unreacted product, and dried under reduced pressure at about 50 ℃, 4mmHg conditions to prepare a colorless transparent resin (silicone acrylic resin).

Then 55% by weight of gastric resin; 2% by weight of Coupling agent (Vinyl trichloro silane); 40% by weight of inorganic filler (calcium carbonate); 1% by weight of UV stabilizer (Benzophenone); 2 wt% of a photocatalyst (Anatase TiO2); was mixed to prepare a paint as follows.

A coupling agent was added to the resin and stirred at 25 ° C. and 1,000 rpm for 10 minutes.

Then, the photocatalyst was added, stirred at a speed of about 2,000 rpm, and pulverized until the particle size was 10 μm or less.

Further, inorganic fillers and UV stabilizers were added in this order, and then a high-speed stirring was performed until the particle size reached 80 µm or less at a speed of about 2,000 rpm to prepare a paint.

Since 4 parts by weight of solid benzoyl peroxide relative to the total weight of the paint as a curing agent.

Table 1, Figures 1 to 4 compares the physical properties of the above-described embodiment of the present invention and Comparative Example 1.

Comparative Example 1 is basically the same as in Example, in which a general acrylic resin is applied instead of a silane-modified acrylic resin in a resin.

As shown in Table 1, Example and Comparative Example 1 of the present invention both satisfied all the criteria of the test item of the paint, but in the case of the embodiment of the present invention was shown to have a superior color, retroreflectivity.

1 and 2 are experimental results of wear resistance of Comparative Example 1, and 3 and 4 are experimental results of wear resistance of Examples of the present invention.

As shown in Figures 2 and 4, in the case of the embodiment of the present invention was shown to have a much better wear resistance than Comparative Example 1.

Figure 5 compares the physical properties (outdoor exposure pollution degree) of the above-described embodiment of the present invention and Comparative Example 2.

Comparative Example 2 is basically the same as in Example, omitting the mixing of the photocatalyst.

As shown in Figure 5, in the case of the embodiment of the present invention it was shown that much less pollution by outdoor exposure than Comparative Example 2.

Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, the scope of the present invention, as is well known, should not be construed as limited to the above embodiments, the present invention described above It will be said that both the technical idea and the technical idea which together with the base are included in the scope of the present invention.

Claims (8)

40 to 63 wt% of the resin in which the silane-modified acrylic resin is incorporated;
Coupling agent composed of one or more selected from vinyl trichloro silane, vinyl trimethoxy silane, glycidoxy propyl trimethoxy silane ) 1-3 wt%;
30 to 55% by weight of an inorganic filler composed by mixing one or two or more of calcium carbonate (CaCO 3), magnesium oxide, and silica flour;
0.1 to 1% by weight of a UV stabilizer selected from benzophenone, benzotriazole and oxanilides;
1 to 3% by weight of a photocatalyst selected from Anatase TiO 2, rutile TiO 2, ZnO, Nb 2 O 5, SnO 2, ZrO 2, Cds, and ZnS;
The resin is,
60 to 73% by weight of the silane-modified acrylic resin, which is a quaternary polymer formed by addition polymerization of an acrylic monomer and a reactive silicone monomer;
20 to 35 wt% of a polymethylmethacrylate (PMMA) copolymer;
1-3 wt% of a wet dispersion additive composed by mixing one or more of sodium polyacrylate, sodium lignin sulfonate, polyethylene glycol phenyl ether;
1 to 2% by weight of an antisettling agent composed of one or two or more of sodium caseate, acetylene glycol, and sodium polyacrylate;
Lane coating material for road paving, comprising. delete The method of claim 1,
The acrylic monomer,
A lane coating for road pavement, comprising one or more of MMA, BA, BMA, MAA, and TMPTA. The method of claim 3,
The acrylic monomer,
Lane coating material for road pavement, characterized by a mixture of MMA and BA. The method of claim 1,
The reactive silicone monomer is a road coating lane coating, characterized in that formed by mixing one or two or more of 3-methacryoxypropyl trimethoxysilane (MPTS), methylchlorosilane, phenylchlorosilane (phenylchlorosilane). The method of claim 1,
As a hardener, the lane coating material for road pavement, further comprising 2 to 5 parts by weight of solid or liquid benzoyl peroxide relative to the total. As a manufacturing method of the coating material of any one of Claims 1 and 3,
Injecting nitrogen gas into the reactor and then injecting nitrogen gas;
Uniformly injecting the silicone monomer into the reactor at a temperature of 75 to 85 ° C. at a rate of 2 to 4 ml / min for 1.5 to 2.5 hours;
Injecting the hybrid polymer into the reactor and maintaining the mixture at a temperature of 75 to 85 ° C. for 20 to 40 minutes;
Injecting the wet dispersion additive and the sedimentation inhibitor into the reactor, and heating the temperature to 95 to 105 ° C;
Removing the unreacted material and drying under reduced pressure at 45˜55 ° C. and 3˜5 mmHg to prepare the resin;
The manufacturing method of the lane coating material of the pavement characterized by including. The method of claim 7, wherein
Adding the coupling agent to the resin and stirring for 5 to 15 minutes at 20 to 30 ° C. and 900 to 1,100 rpm;
Adding the photocatalyst and agitating at a speed of 1,800 to 2,200 rpm and then grinding the particle to have a particle size of 10 μm or less;
After adding the inorganic filler and the UV stabilizer, stirring at a speed of 1,800 ~ 2,200rpm so that the particle size is 80㎛ or less;
The manufacturing method of the lane coating material of the pavement characterized by including.

Images