KR101905825B1 - Mono-fluid type composition for painting traffic lane having excellent visibility - Google Patents

Abstract

The present invention discloses a composition for a mono-fluid type lane painting composition excellent in visibility, abrasion resistance, and durability. The lane painting composition, which is one aspect of the present invention, is enhanced in distributed reflection and diffuse reflection of light since glass beads are exposed on a road surface at a specific buried ratio when used in combination with the glass beads, thereby having excellent visibility. In addition, the composition is excellent in abrasion resistance and durability, so that the desorption of the glass beads due to frictional force can be minimized.

Description

TECHNICAL FIELD [0001] The present invention relates to a composition for a one-

In this specification, a composition for one-liquid lane painting having excellent visibility, abrasion resistance, and durability is disclosed.

Generally, the lane of the road is used as a guide line for guiding the vehicle so that the vehicle traveling in the road can be safely moved. In order to improve the lane visibility during the rainy season or at night, it is painted with a paint composition containing glass beads, After painting, the paint composition containing glass beads is applied onto the lane before drying, or the glass beads are adhered to the lane surface by spraying the liquid agent containing the glass beads on the painted lane to improve the retroreflectivity have.

There is also a precedent in which a composite using glass beads (KR 10-0933923) has been developed to improve visibility.

However, the composition for lane-painting comprising the glass beads and the like developed so far has a problem that the glass beads are separated or broken by the frictional force of the vehicle under running, and as a result, sufficient visibility can not be ensured.

Further, most of the conventional compositions for lane-painting are two-component type including a main component and a curing agent. However, it is troublesome to apply to the road, and the main component and the curing agent are sprayed at an irregular rate, resulting in uneven coating film and poor durability.

Therefore, there is a need to develop a one-component composition for lane-painting, which is excellent in abrasion resistance and durability while maximizing advantages of glass beads.

KR 10-0933923

In one aspect, an object of the present invention is to provide a composition for lane-coloring with improved visibility.

In one aspect, an object of the present invention is to provide a composition for lane-painting which is excellent in visibility even in rainy weather.

In one aspect, an object of the present invention is to provide a composition for lane-painting which is excellent in abrasion resistance and durability.

In one aspect, an object of the present invention is to provide a composition for lane-painting which is easy to use.

In one aspect, the present invention provides a composition comprising (1) 5-10 wt% styrene; 3 to 6% by weight of methyl methacrylate; 1 to 3% by weight of ethyl acrylate monomers; 3 to 5% by weight of 2-ethylhexyl acrylate; 0.1 to 0.3% by weight of acrylic acid; And 15 to 23% by weight of toluene; And (2) 30 to 40% by weight of calcium carbonate, wherein the resin has a glass transition temperature of 50 to 60 캜.

The composition for lane painting, which is one aspect of the present invention, is excellent in mechanical properties such as abrasion resistance and durability and can be dried in a short time, thereby greatly shortening the lane-painting time. Further, when the above composition is used, the glass beads are exposed on the road surface at a specific buried power ratio, so that dispersion reflection and diffuse reflection of light can be improved and the visibility of the lane can be greatly improved. In addition, the composition can minimize the desorption of glass beads due to frictional force.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a comparative photograph before and after painting a lane using the composition of one aspect of the present invention. FIG.
2 is a cross-sectional view of a composition of the present invention and a glass bead mixture applied thereto.

Hereinafter, the present invention will be described in detail.

In one aspect, the present invention provides a lacquering composition comprising, based on the total weight of the composition, (1) 5 to 10% by weight of styrene; 3 to 6% by weight of methyl methacrylate; 1 to 3% by weight of ethyl acrylate monomers; 3 to 5% by weight of 2-ethylhexyl acrylate; 0.1 to 0.3% by weight of acrylic acid; And 15 to 23% by weight of toluene; And (2) 30 to 40% by weight of calcium carbonate, wherein the resin has a glass transition temperature of 50 to 60 캜.

When the glass transition temperature is less than 50 캜, the strength of the coating film is too flexible to realize abrasion resistance. When the glass transition temperature exceeds 60 캜, it satisfies 60 캜, which is the highest temperature on the road surface in summer, Which is undesirable. In particular, when the glass transition temperature is out of the above range, the buried force ratio of the glass bead, which must be satisfied for improving the visibility, can not be satisfied when the glass bead is used in combination.

In this aspect, the composition may further comprise a dispersing agent. Wherein the dispersant has an acid value of 70 to 90 mg KOH / g and an amine value of 8 to 14 mg KOH / g, wherein the dispersant has an acid value and an amine value and has a number average molecular weight of 1,000 or more. (Hereinafter referred to as a first dispersant). In one embodiment, the first dispersant can be, for example, EFKA 64 (R. Nagardas & Co).

Further, in one aspect, the dispersant is an anionic dispersant containing a phosphoric acid functional group, and the dispersant may include a dispersant having an acid value of 45 to 60 mg KOH / g (hereinafter referred to as a second dispersant). In one embodiment, the second dispersant may be, for example, Disper BYK-110 (BYK) as a dispersant having an acid value of 53 mg KOH / g.

In one aspect, the dispersing agent may be included in an amount of 0.1 to 0.7% by weight, based on the total weight of the composition.

In one embodiment, the first dispersant may be included in an amount of 0.1 to 0.3% by weight based on the total weight of the composition, and the second dispersant may be included in an amount of 0.2 to 0.4% by weight.

In one aspect, the composition may further comprise a bismuth carboxylate.

By including the bismuth carboxylate, the composition can have improved abrasion resistance and durability after drying. Further, by further including the bismuth carboxylate, the drying time required for applying the composition to the road surface can be greatly shortened. For example, the composition may have a cure time of about 3 minutes at 20 DEG C when the composition has been coated with 400 g / m < ² > of the composition on a concrete or asphalt surface and the cured dry time does not include bismuth carboxylate, When it contains% by weight, it can be about 1 minute.

In one aspect, the bismuth carboxylate may be included in an amount of 0.01 to 0.1 wt%, preferably 0.03 to 0.07 wt%, and most preferably 0.04 to 0.06 wt%, based on the total weight of the composition . When the content of the bismuth carboxylate is less than 0.01% by weight, the effect of improving the drying time, abrasion resistance and durability can not be expected. When the content of the bismuth carboxylate exceeds 0.1% by weight, the drying time can be further shortened, but the wear resistance and durability are hardly improved.

In one aspect, the composition may further comprise benzoyl peroxide and may include from 0.1 to 0.3% by weight, based on the total weight of the composition. By including the benzoyl peroxide, the reaction rate between components in the composition can be increased.

In one aspect, the composition may further comprise titanium dioxide. Titanium dioxide may be included in an amount of 1 to 7% by weight based on the total weight of the composition.

In addition, the composition may further comprise xylene. The xylene may be contained in an amount of 1 to 10% by weight, preferably 3 to 7% by weight based on the total weight of the composition. When xylene is included in the composition, the degree of dispersion of the components in the composition can be further improved.

The composition is equivalent to Korean Industrial Standard KS M 6080 and satisfies all of SPS-KTS.101-1753 (2015).

In one aspect, the invention is a lane-painting kit comprising the lane-coloring composition and a glass bead mixture.

The glass bead mixture may refer to a mixture of glass beads having different refractive indices. In the kit, the weight ratio of the glass bead mixture and the composition may be 40-75: 60-25.

The glass bead mixture may include glass beads having a refractive index of 1.3 to 1.7 (nd) and glass beads having a refractive index of 1.8 to 2.4 (nd) in a weight ratio of 45 to 55: 55 to 45.

In one embodiment, the glass bead having a refractive index of 1.8 to 2.4 (nd) may be a composite having a glass bead having a diameter of 1/6 to 1/8 of that of the core on the surface of the glass bead core. In one embodiment, the refractive index of the glass bead may be 2.2 (nd), for example, bead matrix of Bokwang Co.,

In one aspect, the average embedding rate of the glass beads of the composition may be 30-35%. In the present specification, the buried strength ratio of the glass beads may refer to the length of the portion embedded in the composition based on the diameter of the glass beads. That is, the embedded strength ratio of 40% means that a portion of 40% of the total diameter is exposed to the outside without being exposed to the inside of the composition and the remaining 60%.

Generally, the lower the buried strength ratio, the wider the area of the glass beads exposed to the outside, and the desorption of the glass beads due to the external impact is easily caused. The composition according to one aspect of the present invention can minimize the desorption of glass beads due to an external impact, even though the buried power ratio of the glass beads is low by including the above components in the above amounts.

Also, the viscosity of the composition may be from 25 to 200 to 250 cps, and preferably from 220 to 230 cps. The viscosity may be optimized to set the buried strength ratio of the glass beads to 30 to 35%. For example, when the viscosity of the composition is less than 200 cps, the buried strength ratio of the glass beads may exceed 35%, and when the viscosity of the composition is more than 250 cps, the buried strength ratio of the glass beads may be less than 30%.

In one aspect, the average diameter of the glass beads may be 100 to 900 micrometers (占 퐉).

In the present specification, the average diameter of the glass beads means that the diameter of each glass bead is within the above range.

Specifically, the average diameter of the glass beads having the refractive index of 1.8 to 2.4 (nd) may be 400 to 800 탆, and the average diameter of the glass beads of 1.3 to 1.7 (nd) may be 100 to 850 탆. If the average diameter of the glass beads is out of the above range, the reflectance of light may be lowered due to irregular reflection or interference. In addition, when the average diameter exceeds 850 mu m, the desorption phenomenon may increase due to external physical force, or the glass beads may be broken.

In one aspect, the present invention provides a method for preparing a composition for lane-coloring comprising mixing a glass bead mixture, styrene, methyl methacrylate, 2-ethylhexyl acrylate, acrylic acid, and toluene . ≪ / RTI >

The mixing may comprise mixing at 100-120 < 0 > C for 50-80 minutes. The mixing step may be concretely as follows.

About 7 to 8% by weight of styrene, 3 to 6% by weight of methyl methacrylate, 1 to 2.5% by weight of ethyl acrylate monomer and 0.1 to 3% by weight of 2-ethylhexyl acrylate in 8 to 11% And 0.1 to 0.3% by weight of acrylic acid are added, and maintained at about 110 to 115 캜 for 1 hour. At this time, 0.1 to 0.3% by weight of benzoyl peroxide can be added together. Thereafter, about 8 to 10% by weight of additional toluene is added and maintained for 4 hours to prepare a resin composition for preparing the composition. Thereafter, a dispersant is added to the resin composition and mixed to prepare a lane-coloring composition. When the mixing temperature and the mixing time are satisfied, the respective components are uniformly mixed and a composition having an appropriate degree of viscosity or viscosity can be produced.

In one aspect, the present invention is a lane-painting method comprising the step of applying the lane-coloring composition.

The method may further comprise the step of applying a glass bead mixture to the applied composition after the step of applying the composition.

Spraying the glass bead mixture may include spraying the glass bead mixture at 0.40 to 0.55 kg / m < ² >. The glass bead mixture may preferably be applied at 0.4 to 0.52 kg / m ² , and most preferably at 0.41 to 0.52 kg / m ² . When the amount of the glass bead mixture is less than 0.4 kg / m ² , the effect of improving the visibility is low due to the low diffuse reflectance. When the amount exceeds 0.55 kg / m ² , I can not expect it.

In this respect, the buried potency of the glass bead mixture may range from 30 to 35%.

The glass bead mixture may include glass beads having a refractive index of 1.3 to 1.7 (nd) and glass beads having a refractive index of 1.8 to 2.4 (nd), and they may be contained in a weight ratio of 45 to 55: 55 to 45 .

Hereinafter, the constitution and effects of the present invention will be described in more detail with reference to examples and test examples. However, these examples and test examples are provided for illustrative purposes only in order to facilitate understanding of the present invention, and the scope and scope of the present invention are not limited by the following examples.

[Production Example 1]

Compositions for lane-coloring were prepared using the ingredients listed in Tables 1 and 2 below. Specifically, the toluene of item 7 shown in the following Table 1 was heated to 100 DEG C, the substances of the items 1 to 6 were added, mixed for 2 to 3 hours, maintained at 110 to 115 DEG C for 1 hour Respectively. Subsequently, item 8 and item 9 were added and kept for 30 minutes. Thereafter, the resin composition was prepared by further adding the item 10.

The resin composition prepared above was mixed with the materials of items 2 to 6 of Table 2 and dispersed. Subsequently, the substance of the item 7 was added and stirred, and the substances of the items 8 and 9 were added and stirred. Then, the substances of the items 10 and 11 were added again and stirred to prepare a composition for lane-coloring , Production Example 1 or Example 1).

number Component in resin composition Wt.% ≪ tb > wt.% ≪ tb & One Styrene 530 parts by weight, 7.4% 2 Methyl methacrylate 418 parts by weight, 5.8% 3 Ethyl acrylate monomer 139 parts by weight, 1.9% 4 2-ethylhexyl acrylate 314 parts by weight, 4.4% 5 Acrylic acid 14 parts by weight, 0.2% 6 Benzoyl peroxide 75% 13 parts by weight, 0.2% 7 toluene 700 parts by weight, 9.8% 8 Benzoyl peroxide 75% 1 part by weight, 0.01% 9 toluene 20 parts by weight, 0.28% 10 toluene 696 parts by weight, 9.8%

number Component in the composition for lane-painting Wt.% ≪ tb > wt.% ≪ tb & One The resin composition of Table 1 370 parts by weight, about 40% 2 EFKA 64 (R. Nagardas & Co) 1.5 parts by weight, 0.16% 3 Pigment (First Yellow PGX-01, 70 parts by weight, 7.6% 4 TiO ₂ 38 parts by weight, 4% 5 Pigment (Orange P) 1.5 parts by weight, 0.16% 6 toluene 50 parts by weight, 5.4% 7 Disper BYK-110 3 parts by weight, 0.33% 8 CaCO ₃ 340 parts by weight, 36.7% 9 Xylene 50 parts by weight, 5.39% 10 10% BYK-052 2 parts by weight, 0.2% 11 toluene 34 parts by weight, 3.67%

[Experimental Example 1]

Using the composition of Preparation Example 1 and a glass bead mixture, experiments were carried out in accordance with KS M 6080 for lead-free, dry adhesion, diffuse reflectance (45 degrees and 0 degrees, white) and abrasion resistance. The curing time was defined as the time when the paint or liquid did not come into contact with the cotton after the application at 23 ° C.

The quality standards for KS M 6080 are as follows. The lead (KU) should be in the range of 80 to 120, and the paint should not adhere to the tire of the tack-free tester after 20 minutes. The diffuse reflectance at 45 ° and 0 ° should be 80 or more, White should be more than 90 and yellow should be more than 80. Wear resistance should be less than 500mg per 100 revolutions.

characteristic Example 1 lead 90 Non-stick drying Do not ask Diffuse reflectance 94 Abrasion resistance 100 Curing time 4 minutes

[Preparation Example 2] Change of mixing ratio of glass beads

The composition was prepared in the same manner as in Preparation Example 1 except for the mixing ratio of glass beads. The mixing ratio (weight ratio) of the glass beads is shown in Table 4

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Glass beads having a refractive index of 1.5 ns 50 55 45 40 60 Glass beads having a refractive index of 2.2nd 50 45 55 60 40

[Experimental Example 2] Diffuse reflectance change according to the mixing ratio of glass beads

The physical properties of the composition were observed in the same manner as in Experimental Example 1 above. As a result, it was found that the mixing ratio of the glass beads had the best diffuse reflectance when the refractive index was 1.5nd and that of 2.2nd was about 50:50.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Diffuse reflectance 94 92 90 80 79

[Preparation Example 3] Change in bismuth carboxylate content

The composition was prepared in the same manner as in Preparation Example 1 except that the bismuth carboxylate was further added. The content of bismuth carboxylate is shown in Table 6 below.

Example 1 Comparative Example 3 Example 4 Example 5 Example 6 Comparative Example 4 Bismuth carboxylate (wt%) X 0.005 0.01 0.05 0.1 0.15

[Experimental Example 3] Property change due to difference in bismuth carboxylate content

The properties of the compositions were observed in the same manner as in Experimental Example 1. As a result, it was found that the curing rate, diffuse reflectance, abrasion resistance and the like were further improved when the bismuth carboxylate was contained in an amount of 0.01 to 0.1% by weight. However, when the content exceeds 0.1% by weight, it is confirmed that the drying speed is increased, but the abrasion resistance is greatly lowered.

Example 1 Comparative Example 3 Example 4 Example 5 Example 6 Comparative Example 4 lead 90 89 91 90 91 90 Non-stick drying Do not ask Do not ask Do not ask Do not ask Do not ask Do not ask Diffuse reflectance 94 93 96 99 96 96 Abrasion resistance 100 98 85 68 82 136 Curing time 4 minutes 4 minutes 2 minutes 1 minute Within 1 minute Within a minute

[Preparation Example 4] Change in the content of ethyl acrylate monomer

The composition was prepared in the same manner as in Preparation Example 1 except that ethyl acrylate monomer was added as shown in Table 8 below.

Example 1 Comparative Example 5 Example 7 Example 8 Example 9 Comparative Example 6
Ethyl acrylate monomer (wt%) 1.9 0.8 One 1.5 3 3.1

[Experimental Example 4] Property change by content of ethyl acrylate monomer

The properties of the compositions were observed in the same manner as in Experimental Example 1. As a result, when the ethyl acrylate monomer was contained in an amount of 1 to 3% by weight, the curing rate, the diffuse reflectance, and the abrasion resistance were excellent.

Example 1 Comparative Example 5 Example 7 Example 8 Example 9 Comparative Example 6
lead 90 90 88 90 93 94
Non-stick drying Do not ask Bury Do not ask Do not ask Do not ask Do not ask
Abrasion resistance 100 195 115 105 110 190
Curing time 4 minutes 7 minutes 5 minutes 5 minutes 5 minutes 15 minutes

 [Experimental Example 5] Change in buried strength of glass beads

The same experiment as in Experimental Example 1 was conducted using the composition of Production Example 1, except that the buried strength of the glass beads was adjusted as shown in Table 10 below. The buried strength was controlled by adjusting the content of the thickener. The desorption of glass beads was evaluated by comparing the amount of desorbed glass beads collected after the abrasion resistance test and scoring by the method of giving a higher score as the desorption phenomenon progressed from 0 to 5 points. As a result, it was found that when the buried strength ratio of the glass beads was 30 to 35%, the diffuse reflectance, abrasion resistance and desorption phenomenon were excellent.

Example 1 Comparative Example 8 Example 10 Example 11 Comparative Example 9 Buried strength 33 28 30 35 36

Example 1 Comparative Example 8 Example 10 Example 11 Comparative Example 9 Diffuse reflectance 94 80 91 90 78 Abrasion resistance 100 170 110 108 168 Tally phenomenon One 5 2 2 5

Claims (12)

As a composition for lane coloring,
The composition may comprise, based on the total weight of the composition,
(1) 5 to 10% by weight of styrene; 3 to 6% by weight of methyl methacrylate; 1 to 3% by weight of ethyl acrylate monomers; 3 to 5% by weight of 2-ethylhexyl acrylate; 0.1 to 0.3% by weight of acrylic acid; And 15 to 23% by weight of toluene; And
(2) 30 to 40% by weight of calcium carbonate,
Wherein the resin has a glass transition temperature of 50 to 60 占 폚. The method according to claim 1,
Said composition further comprising at least one of the following dispersants,
Wherein the dispersing agent is contained in an amount of 0.1 to 0.7% by weight based on the total weight of the composition.
i) a dispersant containing both an acid value and an amine value and having a number average molecular weight of 1,000 or more, wherein the dispersant has an acid value of 70 to 90 mg KOH / g and an amine value of 8 to 14 mg KOH / g; And
ii) an anionic dispersant comprising a phosphoric acid functional group, wherein the dispersant has an acid value of 45 to 60 mg KOH / g. The method according to claim 1,
Wherein the composition has a viscosity of 200 to 250 cps at 25 占 폚. 3. The method of claim 2,
The composition may comprise,
A composition for lane-coloring, further comprising a bismuth carboxylate. 5. The method of claim 4,
Wherein the bismuth carboxylate is contained in an amount of 0.01 to 0.1% by weight based on the total weight of the composition. A method for producing a lane-coloring composition according to any one of claims 1 to 5,
The method comprises:
Styrene, methyl methacrylate, 2-ethylhexyl acrylate, acrylic acid, ethyl acrylate monomer, and toluene. The method according to claim 6,
Wherein the mixing step comprises mixing at 100 to 120 DEG C for 50 to 80 minutes. A lane-painting method, comprising the step of applying the composition for lane-coloring according to any one of claims 1 to 5. 9. The method of claim 8,
The method further comprising the step of applying a glass bead mixture to the applied composition after said applying step. 10. The method of claim 9,
Wherein spraying the glass bead mixture comprises spraying the glass bead mixture at 0.40 to 0.55 kg / m < ² >. 10. The method of claim 9,
Wherein the embedding rate of the glass bead mixture is 30-35%. 10. The method of claim 9,
Wherein the glass bead mixture comprises glass beads having a refractive index of 1.3 to 1.7 (nd) and glass beads having a refractive index of 1.8 to 2.4 (nd) in a weight ratio of 45 to 55: 55 to 45.

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