KR101442535B1 - Organic and inorganic mixed paint composition for road application, and method for constructing the same - Google Patents

Abstract

The present invention relates to an organic and inorganic mixed paint composition for road application and a method for constructing the same. Provided is an organic and inorganic mixed paint composition which contains 20-40 wt% of cement, 10-20 wt% of calcium carbonate, 20-60 wt% of silica sand, 0.1-10 wt% of an ultraviolet reflective pigment, and 2-40 wt% of a solvent-free acrylic mixed resin.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an organic-inorganic mixed paint composition and a method for constructing the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road surface coating oil and inorganic mixed paint composition and a method of applying the same. More particularly, the present invention relates to an oil- Which is excellent in adhesion, abrasion resistance, weather resistance and the like, and which does not cause yellowing due to ultraviolet rays, and a method for its application.

As domestic environmental regulations are strengthened, it is necessary to develop products that are environmentally friendly and meet the climate conditions. Recently, domestic flooring coatings are environmentally friendly and various water-soluble coatings have been developed. Among them, water-soluble inorganic coatings are physically weak and limited to internal ones. In addition, the existing inorganic flooring material has much lower sharpness, stain resistance and water resistance than the oil based coating material, and the oil based coating material is not environmentally friendly using volatile organic solvent.

In addition, flooring materials using conventional methyl methacrylate (MMA) resin changed color due to exposure to ultraviolet rays over time, and adhesion failure often occurred depending on the condition of the concrete surface and curing condition.

In addition, there is a conventional product using powdered acrylic resin to improve physical properties such as adhesion, abrasion resistance, weather resistance and strength. In the case of this conventional product, it is eco-friendly because it can be applied only by using water without using any liquid acrylic resin or volatile organic solvent in the inorganic powder. However, since it is mixed with water, it is difficult to use in winter, and problems such as adhesion and durability have occurred depending on the condition of the surface layer.
[Prior Art Literature]
[Patent Literature]
Korean Patent Registration No. 10-1156139

An object of the present invention is to provide a road surface coating oil and inorganic mixed paint composition which can be used for external use and is excellent in physical properties and is environmentally friendly, and a method for its application.

It is still another object of the present invention to provide a road surface that can design road road surfaces in various colors and pattern shapes, and particularly, to reinforce road surface layers using cement, ultraviolet reflective pigments and non- A coating type oil and inorganic mixed paint composition and a method of applying the same.

In order to achieve the above object, the present invention provides a cement composition comprising 20 to 40% of cement, 10 to 20% of cemented carbide, 20 to 60% of silica sand, 0.1 to 10% of ultraviolet reflecting pigment, And an organic-inorganic composite coating composition.

The oil / inorganic mixed coating composition according to the present invention may further comprise 0.1 to 2% by weight of a dispersant and 1 to 5% by weight of a curing agent.

In the present invention, the non-solvent acrylic mixed resin is at least one selected from methyl methacrylate, ethyl acrylate, butyl acrylate and 2-ethylhexyl acrylate, and the glass transition temperature (Tg) of the solventless acrylic resin is from 0 to 100 Lt; 0 > C.

In the present invention, the ultraviolet reflective pigment is preferably at least one selected from mica, pearl, and metal oxides.

The present invention also relates to a method for mixing a cement composition comprising 20 to 40% of cement, 10 to 20% of cemented carbide, 20 to 60% of silica sand, 0.1 to 10% of ultraviolet reflecting pigment, 2 to 40% step; A second step of mixing 1 to 5% by weight of a curing agent with the mixture of the first step; A third step of applying the mixture of the second step to the road surface at least once or more; And a fourth step of curing the mixture applied in the third step.

The method of applying the oil-and-white mixed paint composition according to the present invention may further include forming a pattern using a stencil and forming a concavo-convex pattern on the surface.

The road surface coating layer type oil and inorganic composite coating composition according to the present invention reinforces a road surface layer by using a solventless acrylic resin, cement and an ultraviolet ray reflective pigment, and is excellent in adhesion, abrasion resistance, weather resistance, And it is environmentally friendly, preventing yellowing caused by ultraviolet rays.

In addition, since inorganic pigment is used for inorganic powder and construction is carried out by using its own design stencil, it is possible to express a luxurious appearance (road surface) with various colors and patterns, and excellent slip prevention effect on the road surface .

In particular, the surface layer is reinforced by mixing cement and acrylic mixed resin, and continuous color retention is possible by using ultraviolet reflective pigment.

Hereinafter, the present invention will be described in detail.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface-coating oil-based, inorganic mixed coating composition and a method of applying the same.

The oil and inorganic mixed coating composition according to the present invention may include cement, calcium carbonate, silica sand, ultraviolet ray reflective pigment, and solvent-free acrylic resin.

Specifically, the organic and inorganic mixed coating composition according to the present invention is characterized by containing 20 to 40% of cement, 10 to 20% of cement, 10 to 20% of silica, 20 to 60% of cement, 0.1 to 10% of ultraviolet reflecting pigment, To 40% by weight.

As the cement, white portland cement can be preferably used. White Portland cement is a white cement with a whitish white color. The manufacturing process is similar to that of cement. However, white clay and limestone, which contain little iron oxide, are used as raw materials to completely burn the liquid fuel. . As the basic raw material of inorganic products, white Portland cement, which is a KS product, and silica sand are used in combination to obtain the compressive strength after curing. In particular, by using white Portland cement, colorants (pigments) can be added in the field to express various colors. The content of cement is preferably 20 to 40% by weight based on the total weight of the coating composition. If too little cement is used, there may be a problem in mixing, and if it is used too much, volume change due to drying shrinkage may occur and cracks may occur and the physical properties of the product may be significantly deteriorated.

The filler is used for the purpose of improving physical properties, workability, and economy (weight, resource saving, etc.) in the coating composition of the present invention. As a filler, calcium carbonate is most widely used and has a high degree of powderiness. In particular, when it is used in a product because it has no chemical reactivity, there is an advantage that it has no side effects besides its role as a filler. Calcium carbonate is used in an appropriate amount to adjust the total weight of the composition, for example, 10 to 20% by weight based on the total weight of the coating composition.

Silica sand is used to obtain the compressive strength of cement mortar while mixing with cement. The type of sandpaper is determined depending on the field construction property and the condition of the finished surface, but the number of silica particles having a particle size of 0.2 to 0.4 mm is preferable. The durability and abrasion resistance depend on the ratio of cement and silica sand. In the present invention, the content of silica sand is preferably 20 to 60% by weight based on the total weight of the coating composition. When used in this range, excellent durability and wear resistance can be obtained.

The ultraviolet ray-reflecting pigment imparts various colors to the coating composition of the present invention. In particular, by mixing one or more kinds of mica, pearl, metal oxide, etc. having a function of reflecting ultraviolet rays, the organic resin is exposed to ultraviolet rays, Can be prevented. In the present invention, the content of the ultraviolet reflective pigment is preferably 0.1 to 5% by weight based on the total weight of the coating composition. When used in this range, various colors can be given without any side effects.

The solventless acrylic resin serves to impart water resistance, adhesion, elasticity and the like to the coating composition of the present invention, and may have different physical properties depending on the type of acrylic resin, and in particular, may function as an adhesion enhancer.

The solventless acrylic resin mixture is preferably one or more selected from the group consisting of methyl methacrylate, ethyl acrylate, buthyl acrylate and 2-ethylhexyl acrylate, May be used in combination of two or more.

The glass transition temperature (Tg) of the solvent-free acrylic mixed resin is preferably 0 to 100 ° C. The content of the solvent-free acrylic mixed resin is preferably 2 to 40% by weight, more preferably 5 to 30% by weight, based on the total weight of the coating composition. When used in this range, excellent adhesion and durability can be obtained as a road surface flooring material.

The oil / inorganic mixed coating composition according to the present invention may further comprise 0.1 to 2% by weight of a dispersant and 1 to 5% by weight of a curing agent.

Since the curing agent serves as an initiator for accelerating the curing reaction of the acrylic resin, the curing reaction can be accelerated and the construction period can be shortened. As the curing agent, a peroxide-based curing agent, preferably benzoyl peroxide (BPO), may be used. If the amount of the curing agent is too small, the curing may not sufficiently proceed and the coating film may be contaminated. On the other hand, if the amount of the curing agent is too large, the curing time may be shortened.

The oil-and-mineral mixed coating composition according to the present invention may further comprise, in addition to the above-mentioned components, additives commonly used in this field. Examples of such additives include adhesion enhancers, fluidizers, thickeners, colorants, crosslinking agents, curing accelerators, anti-settling agents, impact strength modifiers, stabilizers and the like.

The adhesion strength of the oil-based and inorganic coating composition according to the present invention is 2.0 N / mm 2 or more, preferably 2.5 N / mm 2 or more after standard curing according to KS F 4936: 2008, 1.5 N / Mm < 2 > or more, preferably 2.0 N / mm < 2 > The upper limit of the bond strength may be, for example, 4.0 N / mm < 2 >.

The abrasion resistance (CS-17, 1000 g, 1000 revolutions) of the organic / inorganic mixed coating composition according to the present invention can be 20 mg or less, preferably 15 mg or less, based on ASTM D 4060: 10. The lower limit of the abrasion resistance may be, for example, 1 mg.

The color difference (ΔE _ab ) according to the accelerated weathering resistance test (WS-A, after 300 hours) of the oil-and-air mixture coating composition according to the present invention is 0.7 or less, preferably 0.5 or less based on KS M ISO 7724-2: to be. The lower limit of the color difference may be, for example, 0.1.

In addition, the present invention provides a method for applying an oil-based and inorganic-mixed coating composition. The construction method of the present invention can be roughly divided into four steps. First, in the first step, 20 to 40% of cement, 10 to 20% of cemented carbide, 20 to 60% of silica sand, 0.1 to 10% 2 to 40% of the solventless acrylic resin mixture is mixed. In the second step, 1 to 5% by weight of a curing agent is mixed with the mixture of the first step. In the third step, the mixture of the second step is applied to the road surface at least once. For example, it can be applied three times or more in the order of lower, middle and upper. In the fourth step, the mixture applied in the third step is cured.

In addition, stencils can be used to form patterns and to form irregularities on the surface in the course of the construction of the inorganic coating composition. For example, after stitching the stencil and spraying the stencil after removing the stencil, naturally embossed (fine irregularities) are formed, and the anti-slip effect is excellent. Since the stencil has a certain thickness and various patterns are formed in the stencil, various designs can be given by the patterns formed on the stencil, and unevenness as much as the thickness of the stencil can be formed to provide a slip prevention function.

The oil / inorganic mixed coating composition according to the present invention can be very usefully used for road surface coating. As concrete use, it can be used for asphalt, pedestrian passage on the surface layer of concrete, walkway, bicycle road and the like.

The organic and inorganic mixed paint composition according to the present invention is excellent in adhesion (adhesion) to the surface layer by using cement and acrylic resin, and can prevent discoloration from ultraviolet rays by using ultraviolet reflective pigment, It is possible to design a road surface in various patterns because it can produce color and is constructed using a specially designed stencil. In addition, after the stencil work is done after the mid-level work, the stencil is removed after the upper surface is sprayed, and the embossing (fine irregularity) is formed naturally and the slip prevention effect is excellent.

[Example 1]

The coating compositions were prepared according to the ingredients and contents in Table 1. The coating composition was mixed with a curing agent and then applied to the road surface. After the work was done, the stencil with its own design was laid, the top was sprayed, the stencil was removed and the emboss was formed and cured.

ingredient Content (% by weight) Cement (White Portland Cement) 33 Calcium carbonate 15 Silica (No. 6) 30 Solvent-free acrylic resin 20 Ultraviolet Reflective Pigment (Pearl: manufactured by Seacube) 2 Sum 100 Hardener 3

[Example 2]

The coating compositions were prepared according to the ingredients and contents in Table 2. The remainder is the same as in Example 1.

ingredient Content (% by weight) Cement (White Portland Cement) 35 Calcium carbonate 11.29 Silica (No. 6) 31.71 Solvent-free acrylic resin 20 UV reflective pigment (Maika: manufactured by Cotts) 2 Sum 100

[Comparative Example 1]

The coating compositions were prepared according to the ingredients and contents in Table 3. The remainder is the same as in Example 1.

ingredient Content (% by weight) Calcium carbonate 10.79 Silica (No. 6) 67.21 Acrylic mixed resin 20 UV reflective pigment (Maika: manufactured by Cotts) 2 Sum 100

[Comparative Example 2]

The coating compositions were prepared according to the ingredients and contents in Table 4. The remainder is the same as in Example 1.

ingredient Content (% by weight) Cement (Portland cement) 35 Calcium carbonate 11.29 Silica (No. 6) 33.71 Acrylic mixed resin 20 Sum 100

[Test Example]

Table 5 shows the results of measurement of physical properties for Examples and Comparative Examples. The physical property data in Table 5 are the results obtained from the Korea Institute of Chemical Convergence Test.

Test Items  unit Test Methods result Example 1 Example 2 Comparative Example 1 Comparative Example 2 Bond strength
(After standard curing) N / mm < 2 & KS F
4936: 2008 2.8 2.6 1.2 1.5 Bond strength
(After repeated heating and cooling) N / mm < 2 & KS F
4936: 2008 2.2 2.0 0.8 0.5 Abrasion resistance (CS-17,
1000g, 1000 rotations) mg ASTM D
4060: 10 15 12 225 25 Accelerated weathering test (WS-A,
300 hours) KS F
2274: 2002 More than
none More than
none More than
none Yellow Accelerated weathering test
(WS-A, 300 hours) ΔE _ab KS M ISO
7724-2: 2007 0.5 0.5 0.8 5.2

As can be seen from Table 5, the composition according to the present invention was excellent in adhesion strength, abrasion resistance, and accelerated weathering resistance. However, in the case of Comparative Example 1, the adhesion strength and abrasion resistance were remarkably decreased because cement was not used, and in Comparative Example 2, the ultraviolet reflection pigment was not used, and the weather resistance remarkably decreased.

Claims (6)

Inorganic composite coating composition comprising 20 to 40% cement of cement, 10 to 20% of cemented calcium carbonate, 20 to 60% of cemented silica, 0.1 to 10% of ultraviolet reflecting pigment, 2 to 40% of cemented acrylic resin mixture.
The method according to claim 1,
0.1 to 2% by weight of a dispersing agent, and 1 to 5% by weight of a curing agent.
The method according to claim 1,
The solvent-free acrylic mixed resin is at least one selected from methyl methacrylate, ethyl acrylate, butyl acrylate, and 2-ethylhexyl acrylate,
Wherein the glass transition temperature (Tg) of the solvent-free acrylic mixed resin is 0 to 100 占 폚.
The method according to claim 1,
Wherein the ultraviolet reflective pigment is at least one selected from the group consisting of mica, pearl, and metal oxides.
A first step of mixing 20 to 40% cement of cement, 10 to 20% of cemented calcium carbonate, 20 to 60% of cemented silica, 0.1 to 10% of ultraviolet reflecting pigment, 2 to 40% of solventless acrylic mixed resin,
A second step of mixing 1 to 5% by weight of a curing agent with the mixture of the first step;
A third step of applying the mixture of the second step to the road surface at least once or more; And
And a fourth step of curing the mixture applied in the third step.
6. The method of claim 5,
Forming a pattern using a stencil, and forming a concavo-convex pattern on the surface of the pattern.