KR20180016049A - Eco-friendly waterproof paint for road mark - Google Patents

Abstract

The present invention is environmentally friendly and penetrates into roads made of asphalt or concrete to improve the wear resistance of road markings and provide waterproofing to prevent penetration into the roads and prevent cracking of roads and pits, Provides eco-friendly waterproof paint for road surface marking that can extend the life of cover.

Description

Eco-friendly waterproof paint for road marking [

The present invention relates to an environmentally friendly waterproof paint for road surface marking, and more particularly, to an environmentally friendly waterproof paint for road surface marking, which is permeable to roads made of asphalt or concrete, To prevent the occurrence of cracks in roads and pits, and to prolong the life of the road surface mark, and to an eco-friendly waterproof paint for road surface marking.

Roads are roads where automobile traffic is carried out. Most of roads are made of asphalt or concrete. On the road surface, roads are displayed on the road surface to display information such as matters to be observed by road users, regulations, A label is formed.

These road markings are formed by applying paints on the road surface. However, the conventional road surface marking paint is a surface type paint which can not permeate into the road surface for a certain depth or more, and since the wear resistance is low, frequent friction with the vehicle wheel prevents the road surface marking from being maintained for a long time, there is a problem.

In addition, cracks can be generated on the road surface due to infiltration of rain. Such cracks are deepened by the shock caused by the vehicle load and become pits. If such cracks and pits are formed in the portion where the road surface mark is formed, Regulations, and instructions are not well known to road users, which can cause serious safety problems.

Korean Patent Laid-Open No. 10-1998-021152

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide an eco-friendly road penetrating into a road made of asphalt or concrete to improve wear resistance of a road surface marker, Waterproof paint for road surface marking which can prevent the occurrence of cracks and pits of road surface markings and prolong the life of road surface markings.

According to an aspect of the present invention, there is provided a paint comprising: 11 to 15 parts by weight of a waterproofing agent; 1.52 to 1.92 parts by weight of a dispersant; 0.16 to 0.20 parts by weight of an antifoaming agent; And 13 to 17 parts by weight of an acrylic emulsion binder; Wherein the waterproofing agent comprises 25 to 35% by weight of distilled water; 35 to 45% by weight of potassium silicate; 15-25% by weight of potassium silicate; 5 to 15% by weight silane; And 0.5 to 1.5 wt% of a surfactant, wherein the dispersant is SHMP (Sodium Hexametaphosphate), and the defoamer is HDM (n-hexadecyl mercaptan), an eco-friendly waterproof paint for road surface marking.

According to a preferred feature of the present invention, the acrylic emulsion binder comprises 12.41 to 16.41 parts by weight; 8.32 to 12.32 parts by weight of pigment; 11.72 to 15.72 parts by weight extender pigment; And further comprising a filler of 25 to 29 parts by weight, the pigment is titanium dioxide (TiO _2), the extender pigments include talc (3MgO.4SiO.H ₂ O), and the filler may be a calcium carbonate.

According to a more preferred feature of the present invention, 1.35 to 1.75 parts by weight of methanol; 1.03 to 1.43 parts by weight of a film forming auxiliary; 0.07 to 0.11 part by weight of an antifoaming agent; 0.24 to 0.28 parts by weight of a thickener; 0.83 to 1.23 parts by weight of a drying retardation antifreezing agent; 0.32 to 0.36 parts by weight of an emulsifier; and 0.13 to 0.17 parts by weight of a pH adjusting agent, wherein the film-forming auxiliary is Texanol, the defoaming agent is n-hexadecyl mercaptan, the thickener is natrosol 4% The antifreezing agent may be MEG, the emulsifying agent may be X-100, and the pH adjusting agent may be PHLEX110.

According to the eco-friendly waterproof paint for road surface marking of the present invention, since it is made of harmless, nonvolatile and odorless inorganic components and is environment-friendly, the worker can work without protective clothing and workability can be improved and asphalt or concrete It is possible to improve the abrasion resistance of the road surface marking and to provide waterproof property so as to prevent the infiltration into the inside of the road and prevent the occurrence of road cracks and pits, The safety can be enhanced.

Hereinafter, preferred embodiments of the present invention will be described. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the following embodiments. In addition, to include an element throughout the specification does not exclude other elements unless specifically stated otherwise, but may include other elements.

The eco-friendly waterproof paint of the present invention is used to form a road surface marking with symbols, characters, lines, etc. by using a brush or spray equipment on a road surface made of asphalt or concrete.

Such an environmentally friendly waterproof paint is characterized by comprising 11 to 15 parts by weight of a waterproofing agent, 1.52 to 1.92 parts by weight of a dispersant, 0.16 to 0.20 parts by weight of an antifoaming agent and 13 to 17 parts by weight of an acrylic emulsion binder, Followed by mixing and stirring for 30 minutes or more. If the temperature is less than 10 ° C, the materials may not be mixed properly. If the mixing time is less than 30 minutes, the mixing state of the materials may not be uniform.

When the content of the waterproofing agent is less than 11 parts by weight, water permeability, water repellency and waterproofing properties are deteriorated. When the content of the waterproofing agent is more than 15 parts by weight, There is a low problem.

Such a waterproofing agent may comprise from 25 to 35% by weight of distilled water, from 35 to 45% by weight of potassium silicate, from 15 to 25% by weight of potassium silicate, from 5 to 15% by weight of silane and from 0.5 to 1.5% by weight of surfactant.

Here, the distilled water is generally distilled water and serves to mix and dissolve the respective materials. If the content of the distilled water is less than 25% by weight, some of the remaining unmelted material may be generated when the respective components are mixed. When the content of the distilled water exceeds 35% by weight, the viscosity is excessively diluted, The thickness of the road surface mark may not be uniform.

The potassium silicate has penetrability, and the waterproofing agent penetrates into the road, thereby forming a road surface mark on the road surface and inside. At this time, the waterproofing agent acts to chemically react with the calcium hydroxide of the asphalt or the concrete in the portion penetrated into the asphalt or the concrete through the pores of the asphalt or concrete, so that the road marking is integrated with the asphalt or the concrete component.

If the content of the potassium silicate is less than 35% by weight, the above-mentioned action may not be realized properly. If the content of the potassium silicate is more than 45% by weight, the efficiency is low.

The potassium silicoate further imparts a water-repellent function. If the content of the potassium silicate is less than 15% by weight, the hydrolysis may be deteriorated. If the content of the potassium silicate is more than 25% by weight, the efficiency is low.

The silane is a compound in which 2n + 2 hydrogen atoms are bonded to n silicon atoms, and silicon is bonded instead of carbon of hydrocarbon. In the case of road surface marking, adhesiveness to asphalt or concrete as a base material is improved, It enhances the waterproofness of the road surface cover that is installed while penetrating the inside of the road.

If the content of the silane is less than 5% by weight, the adhesiveness and waterproofing property may not be improved. If the content of the silane is more than 15% by weight, the efficiency is low. At this time, the silane is preferably an alkoxysilane such as methyltrimethoxysilane to further improve the dispersibility of the waterproofing agent and the water repellency and abrasion resistance of the applied road surface marker, but the present invention is not limited thereto no.

In the present invention, the surface tension of the liquid waterproofing agent is lowered to make it easier for the paint to penetrate into the road surface when the road surface is coated, The pores of the base material are easily filled with paint and serve to improve the surface strength of the road after forming the road surface mark.

If the content of the surfactant is less than 0.5% by weight, the effect of improving the surface strength of the road after formation of the permeability and road marking may not be realized properly. If the content of the surfactant exceeds 1.5% by weight, This is a low problem.

The dispersant may be SHMP (sodium hexametaphosphate). The dispersant is used for pulverizing and dispersing pigments and other components to ensure stability in application after the production of the paint. To this end, the dispersing agent is absorbed in the polar portion of the pigment which is removed from the non-polar portion of the surfactant molecule to interact with the binder at the liquid / solid interface of the surfactant. If the content of the dispersing agent is less than 1.52 parts by weight, such an effect is not generated properly. If the content of the dispersing agent exceeds 1.92 parts by weight, there is a problem in that the efficiency with respect to the used amount is low.

The defoaming agent may be HDM (n-hexadecyl mercaptan). These defoamers have a low surface tension, a positive penetration coefficient and a positive conversion coefficient, thereby pushing the surfactant stabilizing the foam, lowering the surface tension of the foam stabilized by the elastic properties and reducing the bonding force, thereby removing the remaining harmful bubbles . If the content of the defoaming agent is less than 0.16 parts by weight, the effect of removing the defoaming agent is not properly achieved. If the amount of the defoaming agent is more than 0.20 parts by weight, there is a problem in that the efficiency is low.

In addition, the environmentally friendly waterproof paint of the present invention comprises 12.41 to 16.41 parts by weight of an acrylic emulsion binder, 8.32 to 12.32 parts by weight of a pigment, 11.72 to 15.72 parts by weight of an extender pigment, and filler 25 To 29 parts by weight, and the mixture is stirred at 20 DEG C or higher for about 80 minutes.

The acrylic emulsion binder can easily adhere to the coating film such as asphalt or concrete. If the content of the acrylic emulsion binder is less than 12.41 parts by weight, the acrylic emulsion binder may peel off from the road surface or may flow down after coating. If the added content exceeds 16.41 parts by weight, some of the paints may be aggregated.

The pigment may be titanium dioxide (TiO ₂ ), which is an environmentally friendly coloring agent. If the content of the pigment is less than 8.32 parts by weight, the whiteness and sharpness may be lowered, and the discrimination power of the road marking may be lowered. Is more than 12.32 parts by weight.

The extender pigment serves to reinforce the mechanical properties of the coating film, and talc (3MgO.4SiO.H ₂ O) can be used.

When the filler is added to the inorganic waterproofing agent, it plays a role of improving the waterproofing agent, improving the physical properties and improving the moldability, and calcium carbonate can be used. If the content of the filler is less than 25 parts by weight, the effect of improving the physical properties, physical properties and molding processability of the waterproofing agent is insufficient. If the content of the filler exceeds 29 parts by weight,

The eco-friendly waterproof paint of the present invention is further characterized in that 1.35 to 1.75 parts by weight of methanol, 1.03 to 1.43 parts by weight of the film forming auxiliary, 0.07 to 0.11 part by weight of the defoaming agent, 0.83 to 1.23 parts by weight of a delayed antifreezing agent, 0.32 to 0.36 parts by weight of an emulsifier and 0.13 to 0.17 parts by weight of a pH adjusting agent are further added and the mixture is stirred for 3 hours at 25 ° C or more for about 60 minutes.

Texanol may be used as the film-forming auxiliary.

When the added amount of the defoaming agent is less than 0.07 part by weight, the defoaming effect is not properly achieved. If the added amount of the defoaming agent exceeds 0.11 part by weight, There is a low problem.

The thickener is used for imparting the property that the viscosity of the paint is appropriately controlled to stably store the hemorrhoid-based pigment or the product for a long period of time, and natrosol 4% can be used. If the content of the thickener is less than 0.24 parts by weight, the stability of the composition tends to be deteriorated during long-term storage. If the content of the thickener exceeds 0.28 parts by weight, the efficiency is low.

The drying retardation freezing agent provides an effect of facilitating the paint coating operation by delaying the quick drying while ensuring the stability of physical properties even at a cold temperature of -5 ° C, and MEG can be used. If the content of the drying delayed anti-freezing agent is less than 0.83 parts by weight, the above effects are degraded. If the content of the drying delayed anti-freezing agent exceeds 1.23 parts by weight,

The emulsifier may use X-100

PHLEX 110 may be used as the pH adjusting agent to stabilize the formulation of the paint by appropriately adjusting the pH value so as to resist acidity or alkalinity. If the content of the pH adjusting agent is less than 0.13 parts by weight, the performance of the composition against the alkalinity is deteriorated due to an increase in pH. If the content of the pH adjusting agent exceeds 0.17 parts by weight, the pH may be lowered and the performance against acidity may be deteriorated.

Hereinafter, preferred embodiments of the environmentally friendly waterproof paint for road surface marking according to the present invention will be described in detail, but the present invention is not limited thereto.

[Comparative Example 1]

Norukrylic 0651 (trade name, manufactured by Daehan Paint Ink Co., Ltd.) having a solid content of 40% by weight was used as a modified thermoplastic synthetic resin obtained by introducing an epoxy group into an acrylic resin. As the extender pigment, silica having a particle size of 50 to 150 mesh was used, and a tinted pigment of rutile type, which is a white pigment, was used. AntiteraU (trade name, manufactured by BYKchemie, Germany) was used as the wetting and dispersing agent, and Bentone 38 (trade name, manufactured by Rheox Company, USA) was used as the anti-settling agent. The anti-foaming agent was BII 066 (BYK066: trade name, manufactured by BYKchemie, Germany) and toluene was used as the solvent. These were mixed and dispersed and diluted with an aromatic solvent to prepare a coating composition for road surface marking. The compositions according to specific components are shown in Table 1 below.

Raw material name Formulation amount (parts by weight) Synthetic resin (Norucrylic-0651) 35 Extender pigment (silica, 50-150 mesh) 30 Colored pigment (titanium dioxide, white) 15 Wet dispersant 0.5 Anti-settling agent One Defoamer 0.5 solvent 18 Sum 100

[Comparative Example 2]

Paraloid B44S (trade name, manufactured by Rohm Co., USA) in which 40 weight parts of Paroloid B44 (Paraloid B44: trade name, manufactured by Rohm Haas Co., USA) as a synthetic resin in solid form was dissolved in toluene in an amount of 40 parts by weight Manufactured by Haas Co.) was used as the catalyst. The same composition as in Comparative Example 1 was used. The compositions according to the specific components are shown in Table 2 below.

Raw material name Formulation amount (parts by weight) Synthetic resin (Paraloid B-44S) 35 Extender pigment (silica, 50-150 mesh) 30 Colored pigment 15 Wet dispersant 0.5 Anti-settling agent One Defoamer 0.5 solvent 18 Sum 100

 [Comparative Example 3]

The same composition as in Comparative Example 1 was used, except that a liquid thermoplastic acrylic resin was used as a synthetic resin and Norucrylic 0420 (trade name, manufactured by Daehan Paint Ink Co., Ltd.) having a solids content of 50 wt% was used. The compositions according to the specific ingredients are shown in Table 3 below

Raw material name Formulation amount (parts by weight) Synthetic resin (Norucrylic-0420) 28 Extender pigment (silica, 50-150 mesh) 30 Colored pigment 15 Wet dispersant 0.5 Anti-settling agent One Defoamer 0.5 solvent 25 Sum 100

* The amount by weight of the solid content of the synthetic resin is the same as in Comparative Example 1.

[Comparative Example 4]

As the synthetic resin, a two-component acrylic urethane resin composed of an acrylic polyol and a polyisocyanate reacting therewith was used. As the acrylic polyol, Norutane 0375 (trade name, product of Daehan Paint Ink Co., Ltd.) having a solid content of 49 wt% was used, and as the polyisocyanate reacted with the acrylic polyol, Norutane 0375 having a solid content of 75 wt% 75 (Desmodur N 75: trade name, manufactured by Bayer AG, Germany) was used. The compositions according to the specific ingredients are shown in Table 4 below

Raw material name Formulation amount (parts by weight) Acrylic polyol (Noruthane 0375) 20.4 Extender pigment (silica, 50-150 mesh) 30 Colored pigment 15 Wet dispersant 0.5 Anti-settling agent One Defoamer 0.5 solvent 27.3 Polyisocyanate (Desmodur N 75) 5.3 Sum 100

* The blending amount of the acrylic polyol and the polyisocyanate in the parts by weight is the same as in Comparative Example 1.

[Comparative Example 5]

The aqueous synthetic resin emulsion used was Primal PR 1042 (trade name, manufactured by Rohm Haas Company, USA) having a solids content of 45.5% by weight as an acrylic emulsion, and the extender pigment and the pigment were the same as in Comparative Example 1 Respectively. As the wetting and dispersing agent, Nopco 44S (Nopco 44S (trade name, manufactured by Sanofuco) was used, and hydroxyethyl cellulose was used as the thickening agent. Nopco 8034 (trade name, manufactured by Sanofuco) was used as the antifoaming agent, and ethylene glycol was used as the antifreezing agent. Toxanol (trade name, manufactured by Eastman Chemical Co., USA) was used as a coating composition and Skycide PG520 (manufactured by Sunking Industries Co., Ltd.) was used as a preservative. Ammonia water for industrial use was used as a PH regulator, and water was used as a solvent. The compositions according to the specific components are shown in Table 5 below.

Raw material name Formulation amount (parts by weight) Synthetic resin emulsion (Primal PR 1042) 30.8 Extender pigment (silica, 50-150 mesh) 30 Colored pigment 15 Wet dispersant 0.7 Thickener 0.5 Defoamer 0.3 Cryoprotectant 2 Coating preparation 3 antiseptic 0.3 pH adjusting agent 0.4 water 17 Sum 100

* The amount by weight of the synthetic resin emulsion was the same as in Comparative Example 1.

[Comparative Example 6]

In the case of the fusion-type coating material, Quintone C200S (trade name, manufactured by Nippon Zeon Co., Ltd.), which is a solid synthetic resin having a solid content of 100% by weight, was used, and extender pigments and colored pigments were used in the same manner as in Comparative Example 1 . Soybean oil was used as a plasticizer, fumed silica was used as a flow control agent, and polyethylene wax was used as a stabilizer. The compositions according to the specific components are shown in Table 6 below.

Raw material name Formulation amount (parts by weight) Synthetic resin (Quintone C200S) 14 Extender pigment (silica, 50-150 mesh) 30 Colored pigment 15 Plasticizer 3 Flow regulator One stabilizator 2 Sum 65

* The ratio of the blending amount of the synthetic resin, the extender pigment and the colored pigment to the weight part is the same as that of Comparative Example 1.

[Example]

In the first formulation, NC waterproofing agent was used as a waterproofing agent, SHMP (sodium hexametaphosphate) was used as a dispersant, HDM (n-hexadecyl mercaptan) was used as a defoaming agent, (Dow fastrack-3427: trade name), and the materials were blended for 30 minutes at 10 ° C or more. As a further additive pigment and filler, the acrylic emulsion binder used was a do-pass track, the pigment was titanium dioxide (TiO ₂ ), the extender pigment was talc (3MgO.4SiO.H ₂ O) Was added with calcium carbonate and the above materials were added and blended for 80 minutes at 20 ° C or higher. As a further additive, Texanol was used as a stabilizer, HDM (n-hexadecyl mercaptan) was used as a defoaming agent, natrosol 4% was used as a thickener, MEG was used as a drying retarding antifreezing agent, X-100, PHLEX110 was used as a pH regulator, and the above materials were added and mixed at about 25 DEG C for 60 minutes to prepare an environmentally friendly waterproof paint for road surface marking. The compositions according to the specific components are shown in Table 7 below.

Raw material name Formulation amount (parts by weight) Waterproofing agent 13 Dispersant 1.72 Defoamer 0.18 Acrylic emulsion binder 15 Acrylic emulsion binder 14.41 Pigment 10.32 Extender pigment 13.72 Filler 27 Methanol 1.55 Preparing preparation 1.23 Defoamer 0.09 Thickener 0.26 Drying delayed freezing agent 1.03 Emulsifier 0.34 pH adjusting agent 0.15 Sum 100

Coatings were formed using the coating compositions for road surface marking obtained in Comparative Examples 1 to 6 and Examples, and physical properties of the coating films formed were evaluated as follows. The dried specimens were subjected to 100 revolutions using a taber-type abrasion tester specified in KS M6080: 2014 and abrasive paper No. 180, and the weight loss was determined. The results are shown in Table 8 below.

Test result Abrasion resistance (wear loss (g) / 100 times) Comparative Example 1 69.6 Comparative Example 2 67.2 Comparative Example 3 75.8 Comparative Example 4 63.4 Comparative Example 5 76.2 Comparative Example 6 64.5 Example 32.1

As shown in Table 8, it can be seen that the abrasion resistance of the environmentally friendly waterproof paint for road surface marking according to the embodiment of the present invention is improved to about 2 to 2.37 times as compared with the comparative examples using the conventional road surface marking paint composition have.

As described above, the eco-friendly waterproof paint for road surface marking according to the present invention is excellent in adhesive strength and has excellent elasticity, so that it can be easily applied to a road surface made of asphalt or concrete using a brush, roller or spray or the like, There is an advantage. In addition, through the simplicity of such a construction, it is possible to effectively utilize it for the purpose of repairing defects of the existing road surface mark as well as a new road surface mark.

Further, the present invention does not use an adhesive but forms a road surface mark by completely penetrating into cracks or cracks formed on the surface of the base material by chemical bonding, not physical bonding, and reacting with the asphalt or concrete base material, It is possible to improve the water permeability and the water absorbency relative to the usage amount and the water repellency and waterproof efficiency thereby. In addition, since the road surface mark is chemically bonded to the asphalt or concrete components in the asphalt or concrete, the adhesion of the road surface marking to the base material is excellent, so that even when the road surface mark is formed, It is possible to minimize peeling or removal from the road surface due to the factors and to prevent penetration of rainwater into the inside of the road to prevent the cracks and pits of the road from being formed on the road surface marking to prolong the life of the road surface marking .

In addition, the road marking reinforces the strength of the base material. When the road marking penetrates into the base material, it is already reacted with the calcium hydroxide of the asphalt or concrete. Therefore, oxidation of the surface of the base material is prevented after the formation of the road marking and the durability of the asphalt or concrete is increased The painted state can be maintained for a long time and the life of the road surface mark can be further extended.

In addition, since all the components of the paint are composed only of odorless, nonvolatile and inorganic materials, they are eco-friendly so that the worker can work without protective clothing and keeps the dissolved state constantly and uniformly. The workability can be remarkably improved. In addition, it does not contain oily materials and can be used in water-soluble products such as water-based paints, if necessary.

The present invention is not limited by the above-described embodiments but is intended to be limited by the appended claims. It will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. something to do.

Claims (3)

Based on 100 parts by weight of the total paint, 11 to 15 parts by weight of a waterproofing agent; 1.52 to 1.92 parts by weight of a dispersant; 0.16 to 0.20 parts by weight of an antifoaming agent; And 13 to 17 parts by weight of an acrylic emulsion binder; / RTI >
The waterproofing agent comprises 25 to 35% by weight of distilled water; 35 to 45% by weight of potassium silicate; 15-25% by weight of potassium silicate; 5 to 15% by weight silane; And 0.5 to 1.5% by weight of a surfactant,
Wherein the dispersant is SHMP (Sodium Hexametaphosphate), and the defoamer is HDM (n-hexadecyl mercaptan). 12. The composition of claim 1, wherein the acrylic emulsion binder comprises from 12.41 to 16.41 parts by weight; 8.32 to 12.32 parts by weight of pigment; 11.72 to 15.72 parts by weight extender pigment; And 25 to 29 parts by weight of a filler,
The pigment is titanium dioxide (TiO _2), and the extender pigments include talc (3MgO.4SiO.H ₂ O), and wherein the filler is environment-friendly water-based water paint for a road pavement marker characterized in that the calcium carbonate. 3. The method of claim 2, further comprising: 1.35 to 1.75 parts by weight of methanol; 1.03 to 1.43 parts by weight of a film forming auxiliary; 0.07 to 0.11 part by weight of an antifoaming agent; 0.24 to 0.28 parts by weight of a thickener; 0.83 to 1.23 parts by weight of a drying retardation antifreezing agent; 0.32 to 0.36 parts by weight of an emulsifier; 0.13 to 0.17 parts by weight of a pH adjusting agent,
Wherein the film forming aid is Texanol, the defoaming agent is HDM (n-hexadecyl mercaptan), the thickener is natrosol 4%, the drying delayed antifreezing agent is MEG, the emulsifying agent is X- 100, and the pH controlling agent is PHLEX 110. The eco-friendly waterproof paint for road surface marking.