KR101398095B1 - Coating material for road marking for an underground facilities and manufacturing method of it - Google Patents

Abstract

The present invention relates to paints for marking underground facilities and a manufacturing method thereof, and more specifically, to paints for marking underground facilities and a manufacturing method thereof, wherein the paints comprise the mixture (A+B+C+D+E+F) of a binder (A) prepared by mixing a water-soluble acrylic emulsion resin with a water-soluble polyurethane resin, a fluorescent silica (B), a coloring pigment (C), a polyamide resin (D), calcium carbonate (E), and an antioxidant (F). The paints comprise the mixture of a binder prepared by mixing a water-soluble acrylic emulsion resin with a water-soluble polyurethane resin, a fluorescent silica, a coloring pigment, a polyamide resin, calcium carbonate, and an antioxidant.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating material for underground facilities,

The present invention relates to a method and apparatus for detecting burial locations of underground facilities such as waterworks, sewerage, gas, heating pipes, pipelines, communications, underpasses, subways, underground parking lots, And to a method for producing the same.

Underground facilities are facilities that are artificially buried in the ground to carry out human life such as waterworks, sewage, gas, heating pipe, oil pipeline, communication, underpass, underground shopping mall, subway, .

If the location of the underground facilities buried in the underground is not properly understood, the buried pipeline or the wire line may be broken or short-circuited due to the carelessness of the operator when the excavation work or the ground work is proceeded. Therefore, in order to secure safety from such an accident, conventionally, a position indicator has been installed on a road or a sidewalk block so as to accurately grasp a position where an underground facility is buried.

However, since the conventional position indicator is exposed to the ground, it is damaged or lost by a pedestrian, a vehicle, etc., and causes not only a large and small accident to a pedestrian but also a bad cosmetic problem.

Accordingly, the present inventors have completed the present invention to solve the problem of the conventional position indicator by using paints at the buried position of the underground facility so as to replace the position indicator exposed to the ground.

In connection with the present invention, Korean Patent Registration No. 10-0981809 (filed on September 6, 2010) entitled " Colorants for road marking materials and road marking materials using the same ", Korean Registered Patent No. 10-0976221 A composition for road surface marking and a road surface marking method using the same, Korean Registered Patent No. 10-0254104 (registered Jan. 29, 2000) 'Pavement road marking method and composition therefor', Korea Patent No. 10-0306685 A variety of painting techniques have been disclosed including 'epoxy resin composition for road surface indication and road surface road marking method using the same', but existing paints have poor coloring function, no luminous function, There is a problem that the paint is not lost because the color is hardly adhered to the road.

Korean Registered Patent No. 10-0981809 (registered on September 6, 2010) Korean Registered Patent No. 10-0976221 (registered on August 10, 2010) Korean Registered Patent No. 10-0254104 (registered on Jan. 29, 2000) Korean Registered Patent No. 10-0306685 (registered on August 13, 2001)

In order to solve the problems of the prior art, the present invention can accurately grasp the buried position of underground facilities even if there is no separate display device, It is an object of the present invention to provide a coating material for underground facilities for identification display and a manufacturing method thereof.

In order to achieve the above object,

The present invention relates to a road surface marking paint for locating buried underground facilities, wherein the paint comprises 5 to 30 wt% of a binder (A) formed by mixing a water-soluble acrylic emulsion resin and a water-soluble polyurethane resin; 1 to 20 wt% of fluorescent silica (B); 1 to 15% by weight of a coloring pigment (C); 2 to 20 wt% of a polyamide resin (D); 5 to 30 wt% of calcium carbonate (E); (A + B + C + D + E + F) of an antioxidant (F) in an amount of 0.1 to 15 wt%;

In order to produce the underground facilities display paint, a binder is prepared by mixing a water-soluble acrylic emulsion resin and a water-soluble polyurethane resin in a thermostatic chamber; Fluorescent silica; A coloring pigment; A polyamide resin; Calcium carbonate; An antioxidant;

Adding 0.1 to 0.8 mm of ceramic beads to the thermostat, and stirring the mixture at 6,000 to 10,000 rpm. The main technical features of the method are as follows.

Since the paint for underground facility display according to the present invention can be clearly displayed by different types of underground facilities and under responsible companies of underground facilities on the surface of the paint on the place where the underground facilities are buried, It is easy to manage and supervise because the division of the company can be clarified.

Since the buried position of the underground facility can be displayed by applying the paint using the paint, the safety of the pedestrian and the like can be secured without deteriorating the beauty of the road.

Further, since the underground facilities display paint according to the present invention has a luminous function, it is easy to identify at night and is not erased well, so that it is excellent in cost saving due to maintenance and the like.

Hereinafter, the above technical arrangement will be described in more detail.

As described above, the underground facilities display paint according to the present invention is for grasping the position where the underground facilities are buried. The paint comprises a binder (A) 5 formed by mixing a water-soluble acrylic emulsion resin and a water-soluble polyurethane resin ~ 30 wt%; 1 to 20 wt% of fluorescent silica (B); 1 to 15% by weight of a coloring pigment (C); 2 to 20 wt% of a polyamide resin (D); 5 to 30 wt% of calcium carbonate (E); (A + B + C + D + E + F) of the antioxidant (F) in an amount of 0.1 to 15 wt%.

As described above, the underground facilities display paint according to the present invention improves the night visibility by the luminous function, and because it is not erased well, it is possible to reduce the cost required for the maintenance, and can display various colors clearly, This is excellent.

Such functions are derived from the constitutional components of the fluorescent silica, the color pigment, the binder, the polyamide resin, etc. and the blending ratios of the constituent components, and the details of the constituent components and blending ratios thereof are as follows.

The binder should maintain a certain viscosity which may contain solid components, be excellent in adhesion, and be free from reaction with solid components and additives. It is important to produce a binder in a stable state so that there is no problem of reaction between the binder and the solidified portion or occurrence of an anomalous phenomenon when mixed with the additive.

In the present invention, a mixed binder of a water-soluble acrylic emulsion resin and a water-soluble polyurethane resin is used. The mixed binder has a solid content (%) of 50 to 51, a pH of 8.0 to 9.0, a viscosity (mPa · s) of 30 to 40, 10 to 90% by weight of a water-soluble acrylic emulsion resin having a specific gravity (占 폚) of 1, a specific gravity (20 占 폚) of 1.25 to 1.33,

A water-soluble polyurethane resin having a solid content (%) of 55 to 57, a pH of 7.5 to 8.5, a viscosity (mPa.s) of 30 to 40, a minimum film forming temperature (占 폚) of 5 and a specific gravity (20 占 폚) of 1.29 to 1.35 And is used within a range of 5 to 30 wt% with respect to the total amount of the coating material.

By using the mixed binder of the water-soluble acrylic emulsion resin and the water-soluble polyurethane resin as described above, the chemical resistance and chemical resistance of the coating material according to the present invention are improved, .

When the amount of the binder is less than 5 wt%, the adhesion of the paint may deteriorate. When the amount of the binder exceeds 30 wt%, the content of the other components may be decreased and color clarity and luminous performance may be deteriorated. It is preferable to limit the amount of the coating to 5 to 30 wt%.

The fluorescent silica was prepared by adding 0.1 to 3.5 wt% of fluorescent dye Fluorescein-5-maleimide, 59 to 75 wt% of anhydrous ethanol and 22 to 40 wt% of 3-mercaptopropyl-trimethoxysilane (MPTS) And stirring the mixture for 10 to 12 hours while blocking the light to form a first composition;

10-30 wt% of the first composition solution, 20-30 wt% of anhydrous ethanol, 20-30 wt% of tetraethoxysilane (TEOS), 20-30 wt% of distilled water and 10-20 wt% of ammonia hydroxide (NH ₄ OH) And the mixture is stirred for 20 to 24 hours while blocking the light.

If the amount of the fluorescent silica used is less than 1 wt%, the night visibility of the paint may deteriorate. If the amount of the fluorescent silica exceeds 20 wt%, the improvement in night visibility does not change much and is meaningless. By weight based on the total weight of the composition.

In order to facilitate identification of the underground buried underground buried in the underground, the coloring pigment is applied with a color having excellent color strength and sharpness, and a different color is applied for each purpose.

In the pigment, as the dispersion progresses, the clarity, gloss and transparency increase. The paint according to the present invention uses a pigment having excellent color weather resistance because it is important that the color is not faded and maintained for a long time due to external factors such as sunlight and wind and rain.

Inorganic pigments selected from among titanium white, titanium yellow, iron oxide-red and Fe-Mn based carbon black; Quinacridone red, quinacridone violet, phthalocyanine blue, chlorinated phthalocyanine green, phthalocyanine green, and the like. bromide, and organic pigments.

However, in order to give various colors, it is possible to use iron oxide-yellow as necessary, chrome yellow, ultramarine blue, deep blue, cobalt blue, chromium oxide An inorganic pigment selected from chrome oxide green, black oxide of iron, Or a combination of two or more selected from the above.

Herein, the inorganic pigment is an inorganic compound such as Zn, Pb, Sb, Ti, Cd, Fe, As, Co, Mg and Al which is an inorganic substance of the coloring component. Inorganic pigments are used as pigments because their starting point is only the color of the original metal, but they have a completely different color from the original color of the metal, depending on what kind of nonmetal element they are bonding to.

In addition, organic pigments combine various elements such as hydrogen, oxygen, and nitrogen in a complex chemical structure composed mainly of carbon to form a structure called "chromophore", "chromophore" It absorbs the color light of various wavelength regions depending on its type and position, and produces many colors. Organic pigments generally have a lower hiding power, light resistance, solvent resistance, and oil resistance than inorganic pigments, and are often used in paints because they are expensive and have a clear and clear color that can not be obtained from inorganic pigments and have high coloring power

When the amount of the coloring pigment is less than 1 wt%, color development is not achieved. When the amount exceeds 15 wt%, physical properties of the coating material may be deteriorated. Therefore, To 15 wt%, based on the total weight of the composition.

The polyamide resin is selected from the group consisting of polyamide-3, polyamide-4, polyamide-6, polyamide-7, polyamide-8, polyamide-9, polyamide-11, polyamide- 6, and polyamide-6, and 10, and is used for enhancing the adhesion of the paint. In this case, when the amount is less than 2 wt%, the adhesion of the paint is deteriorated. Therefore, there is a fear of cost incurred due to the loss of the marking parts for indicating the location of underground facilities due to natural environment such as rain, wind, The amount of the polyamide resin used is preferably limited within a range of 2 to 20 wt% with respect to the total amount of the coating material, because the coating operation may be difficult due to an increase in the viscosity of the coating material.

The above-mentioned calcium carbonate is one of the abundant resource minerals present in nature, and has the same characteristics as Calcite, Aragonite, Vaterite, etc., and the crystal form exists as other polymorph. Calcite crystals have a rectangular shape, Aragonite crystals have a needle shape, and Vaterite crystals have a circular shape. In general, calcium carbonate can be divided into precipitated calcium carbonate (PCC) obtained by chemical precipitation reaction with Ground Calcium Carbonate (GCC) obtained by crushing or grinding of ore according to the production method. Among these, precipitated calcium carbonate is widely used as additives for various industries such as rubber reinforcing agent, toothpaste, brightener, paint, pigment, lacquer, printing ink, cosmetic, paper industry and the like. Especially, Calcium carbonate is excellent in physical and chemical properties.

If the amount of calcium carbonate used is less than 5 wt%, improvement in the durability and chemical resistance of the coating material is unlikely to be improved. If the amount exceeds 30 wt%, the adhesion and durability of the coating material may deteriorate. Is preferably limited to a range of 5 to 30 wt% with respect to the total amount of the coating material.

The antioxidant may be one or more selected from the group consisting of phenol type, amine type, 2-benzothiazol-2-yl-thio-succinic acid di-alkyl ammonium and organophosphite, When the content of the antioxidant is less than 10 wt%, the durability and the yellowing of the coating film are lowered. When the content of the antioxidant exceeds 15 wt%, the curability is lowered and the mechanical strength is lowered. But is preferably limited to a range of 0.1 to 15 wt%.

Specific examples of the blend ratio of the components of the underground facilities display paint are as in Example 1 described below.

The underground facilities display paint according to the present invention comprises 27 wt% of a binder prepared by mixing a water-soluble acrylic emulsion resin and a water-soluble polyurethane resin in a weight ratio of 1: 1;

18 wt% of fluorescent silica;

12 wt% of a color pigment of red iron oxide;

15 wt% polyamide resin;

25 wt% of calcium carbonate;

And 3 wt% of an antioxidant.

The method for producing the underground facilities display paint includes a binder composed of a mixture of a water-soluble acrylic emulsion resin and a water-soluble polyurethane resin in a thermostatic chamber; Fluorescent silica; A coloring pigment; A polyamide resin; Calcium carbonate; After the antioxidant is added,

Ceramic beads of 0.1 to 0.8 mm are added to the above-mentioned thermostatic chamber and then stirred at 6,000 to 10,000 rpm.

More specifically, the second embodiment is similar to the second embodiment.

In order to prepare a coating material for underground facilities according to the present invention, firstly, the composition and the proportions shown in Example 1 are put into a thermostat. Next, 0.5 mm ceramic beads are added to the thermostatic bath, and then the mixture is stirred at 9,000 rpm to prepare a uniformly mixed composition.

By uniformly applying the paint through the above-described process, the color sharpness can be increased and displayed on the road or sidewalk block, thereby increasing visibility.

Since the underground facilities display paint according to the present invention is not easily erased after the construction, it can perform the display function of the underground facilities well and also has the luminous function so that the luminous display function is excellent at night, It is very good and very industrially applicable.

Claims (5)

As a road surface marking paint for locating buried underground facilities,
The paint comprises 5 to 30% by weight of a binder (A) composed of 10 to 90% by weight of a water-soluble acrylic emulsion resin and 10 to 90% by weight of a water-soluble polyurethane resin;
1 to 20 wt% of fluorescent silica (B);
1 to 15% by weight of a coloring pigment (C);
2 to 20 wt% of a polyamide resin (D);
5 to 30 wt% of calcium carbonate (E);
(A + B + C + D + E + F) of an antioxidant (F) in an amount of 0.1 to 15 wt%;
The method according to claim 1,
The binder contains 10 to 90 wt% of a water-soluble acrylic emulsion resin having a solid content (%) of 50 to 51, a pH of 8.0 to 9.0, a viscosity (mPa s) of 30 to 40, a minimum film forming temperature (캜) of 1, %Wow,
A water-soluble polyurethane resin having a solid content (%) of 55 to 57, a pH of 7.5 to 8.5, a viscosity (mPa.s) of 30 to 40, a minimum film forming temperature (占 폚) of 5 and a specific gravity (20 占 폚) of 1.29 to 1.35 Wherein the coating composition is a mixture of two or more of the above components.
Claim 1
Fluorescent silica was prepared by adding 0.1 to 3.5 wt% of fluorescent dye Fluorescein-5-maleimide, 59 to 75 wt% of anhydrous ethanol and 22 to 40 wt% of 3-mercaptopropyl-trimethoxysilane (MPTS) Agitating the mixture for 10 to 12 hours while blocking the light to form a first composition;
10 to 30 wt% of the first composition, 20 to 30 wt% of anhydrous ethanol, 20 to 30 wt% of tetraethoxysilane (TEOS), 20 to 30 wt% of distilled water and 10 to 20 wt% of ammonia hydroxide (NH ₄ OH) And the mixture is stirred for 20 to 24 hours in a state of blocking light.
The method according to claim 1,
The polyamide resin is selected from the group consisting of polyamide-3, polyamide-4, polyamide-6, polyamide-7, polyamide-8, polyamide-9, polyamide-11, polyamide- , Polyamide-6, and polyamide-10.
5 to 30 wt% of a binder composed of 10 to 90 wt% of a water-soluble acrylic emulsion resin and 10 to 90 wt% of a water-soluble polyurethane resin in a thermostat; 1 to 20 wt% of fluorescent silica; 1 to 15 wt% of a color pigment; 2 to 20 wt% of a polyamide resin; 5 to 30 wt% of calcium carbonate; 0.1 to 15% by weight of an antioxidant;
Wherein the ceramic beads are added to the thermostat in an amount of 0.1 to 0.8 mm and then stirred at 6,000 to 10,000 rpm to prepare a coating material.