KR101726192B1 - pavement composition for forming rumble strip - Google Patents

Abstract

The present invention relates to a pavement composition for forming rumble strip layers which can be coated on a target surface and form a rumble strip layer for skid-prevention by applying pressure on the upper surface thereof, to improve the durability and reliability of the rumble strip layer coated on the floor for skid-prevention of the target surface, wherein the pavement composition comprises: 50-60 wt% of a base material containing an acrylate resin; 30-40 wt% of an aggregate which is one selected from a group consisting of quartz, silicon dioxide, silicon carbide, jadeite, glass bead and a mixture thereof; 3-5 wt% of a coloring agent containing an iron oxide; 3-4 wt% of a viscosity modifier as an anti-sagging agent; 1.5-2.5 wt% of wax as a surface contamination-preventing agent; and 0.5-1 wt% of benzoyl peroxide as a reaction rate control agent.

Description

[0001] The present invention relates to a pavement composition for forming rumble strip,

More particularly, the present invention relates to a flooring composition for application to a roughening layer, which is improved in durability and safety of a roughening layer formed on a floor material to be applied for preventing slipping of a target surface.

Generally, in a road formed of asphalt or concrete, a slope is required in a road where a slope is urgent or a braking distance such as a steep curve section or a ramp is required, a slip phenomenon occurs in the traveling speed of the vehicle or the road due to snow or rain, There is a risk of accident. In order to prevent this, various safety facilities are installed on the road. In particular, a floor material for preventing the sudden stoppage of the vehicle and the slip of the vehicle on the sloping road surface is provided on the road surface so as to increase the frictional force between the tire and the road surface of the vehicle. Respectively.

Here, the conventional anti-slip flooring is usually prepared by applying a resin to a road, spraying a slag, and finishing the surface using a compaction roller. Such conventional anti-slip flooring has a problem in that abrasion and slip resistance of the product remarkably deteriorate due to progress of dropping of aggregate due to continuous impact of the running vehicle or the like. In addition, since the durability of the product is low, the removal of the flooring material from the asphalt road surface, which is a base material, is progressed during long-term use, resulting in poor economical efficiency due to repetitive maintenance and construction.

In addition, since the weatherability is weak, the discoloration of the flooring rapidly proceeds and the visibility of the product is rapidly deteriorated. In order to increase the sliding resistance, coarse aggregate is used to increase the thickness of the flooring itself, causing vibration and ride comfort.

Accordingly, a method of applying a flooring composition in a state where an aggregate, a curing agent, and the like are mixed in a resin is applied to a road has been partially disclosed.

Here, the flooring composition has a problem that a thermoplastic resin such as an epoxy system or a polyester system is used and the curing time is long and the surrounding environment is contaminated by using a tar, a tar derivative, a plasticizer or an organic solvent. In addition, the thermoplastic resin is a method of melting a binder by heating and adhering to a road surface, and there is a problem that the economical efficiency due to the expensive equipment required for the process and the risk of high temperature during construction are increased.

Furthermore, the epoxy resin is vulnerable to ultraviolet rays, and the polyester resin has a problem that the adhesion is deteriorated due to shrinkage, cracks are generated in strong hardness, or durability is deteriorated due to disconnection of aggregate.

On the other hand, the above-mentioned flooring composition is coated on the road surface, and conventionally, a step of scraping the surface with a broom or the like has been carried out to form the unevenness. However, when the curing speed of the resin material is low when the concavities and convexities are formed by the broom, the concavities and convexities are unclear, and the depth of the concavities and convexities formed is not constant, so that the sliding resistance is decreased and the vibration of the vehicle is increased.

Korean Patent No. 10-0427779

In order to solve the above-mentioned problems, the present invention provides a flooring composition for coating a roughness-forming layer having improved durability and safety of a roughening layer formed on a flooring material applied to prevent slipping of a target surface and a method for producing the same do.

In order to solve the above-mentioned problems, the present invention provides a flooring composition for coating with a roughening layer, which is applied for preventing slipping of a target surface, wherein a roughening layer is formed by pressing on the top surface, % By weight of base stock; 30 to 40% by weight of aggregate composed of one selected from the group consisting of quartz, silicon dioxide, silicon carbide, jadeite, glass beads, and mixtures thereof; 3 to 5% by weight of a colorant including iron oxide; 3 to 4% by weight of a viscosity control agent as an anti-settling agent; 1.5 to 2.5% by weight of a wax as surface contaminants; And 0.5 to 1% by weight of benzoyl peroxide as a reaction rate controlling agent, wherein the base material comprises 30 to 50 parts by weight of a polymethyl methacrylate resin having a viscosity of 100 to 2,000 mPa · s based on the total weight of the base material, By weight of a binder, 10 to 20% by weight of an strength-maintaining agent containing glycidyl methacrylate having a number average molecular weight of 142, and N, N-dimethyl-P-toluidine having a number average molecular weight of 135 1 to 2% by weight of a curing accelerator, 4 to 8% by weight of a humidity control agent containing synthetic zeolite, 20 to 30% by weight of an extender pigment and 10 to 15% by weight of an acrylic modifier, The viscosity of which is in the range of 100 to 800 mPa · s so as to control the curing time for the precision of the surface roughness of the unevenness forming layer.

Preferably, the extender pigment is one selected from the group consisting of light calcium carbonate, heavy calcium carbonate, antimony trioxide, antimony pentoxide, barium sulfate, clay, and mixtures thereof, but has a particle size of 200 to 500 mesh.

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The acrylic modifier is preferably one selected from the group consisting of an acrylic rubber having a number average molecular weight of 60,000 to 120,000, an acrylic polymer having a Tg value of 50 to 70 ° C, and a mixture thereof.

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Through the above-mentioned solution, the flooring composition for surface roughening and coating according to the present invention and the method for producing the same provide the following effects.

First, since N, N-dimethyl-P-toluidine, which controls the polymerization rate, is mixed with a base material containing an acrylic resin as a main raw material, viscosity which can be applied to a target surface in a uniform thickness upon application of a coating composition The irregular shape can be clearly and easily formed by a roller whose surface is first patterned.

Secondly, even if the N, N-dimethyl-P-toluidine is mixed with a minimum amount of benzoyl peroxide secondarily, the above flooring composition can be quickly cured in a low temperature to room temperature environment, So that workability and economy can be remarkably improved.

Third, an acrylic modifier including an aggregate and an acryl rubber having a number average molecular weight of 60,000 to 120,000 is stably polymerized with the base material to improve the mechanical properties, impact resistance, aging resistance and durability of the anti-slip coating layer, The slip resistance can be further improved since the steps of the unevenness-forming layer formed by mixing the viscosity control agent as an anti-settling agent and the anti-slip coating layer are formed clearly and uniformly.

Fourth, in order to improve the visibility of the anti-slip coating layer, iron oxide, which is a non-toxic and non-polluting inorganic pigment, is used as a colorant, and a polymethyl methacrylic resin having a viscosity of 100 to 2,000 mPa.s is included as a binder, Since the use of a separate toxic organic solvent is limited while being applied in one thickness, safety of work is improved and environmentally friendly.

Fifth, as the mixture contained in the base material is first stirred and the other mixture is introduced stepwise, the viscosity is controlled to be uniformly applied to the object surface during the mixing process, 50 to 70% of the total amount of the emulsifying agent is mixed with the emulsifier.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a state in which a roller for forming concavities and convexities is applied in a state where a flooring composition for applying a concavo-convex forming layer is applied according to an embodiment of the present invention;
2 is a flow chart illustrating a method of manufacturing a flooring composition for coating with a roughening layer according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a flooring composition for coating a roughening layer according to a preferred embodiment of the present invention and a method for producing the same will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exemplary view showing a state in which the unevenness-forming roller is applied in a state in which the unevenness-forming-layer-applying flooring composition according to an embodiment of the present invention is applied.

The flooring composition for surface-roughening coating of the present invention is coated and cured at a thickness of 2 to 10 mm on a target surface (K) requiring an anti-slip effect when the vehicle passes through an acute curve portion of a road, an inclined surface, Protective coating layer (M). At this time, as the flooring composition for coating with concavity and convexity is applied to the object surface K so as to further improve the slip prevention effect of the anti-slip coating film layer M, A forming layer (b) may be further formed.

Specifically, the roller 10 for forming concavo-convex portions has a plurality of columnar pressing projections 2 arranged at predetermined intervals on the outer surface of the rotatable body portion 1 in a radial direction. Of course, the pressing protrusions may be provided as vertical or horizontal frames having a predetermined thickness and spaced apart from each other at predetermined intervals along the circumferential direction of the body 1.

Then, the unevenness-forming roller 10 is rotationally moved along the upper surface portion before the unevenness-forming-layer-applying flooring composition applied to the object surface K is cured. Thus, the unevenness-forming layer (b) including the groove (x) and the convex portion (y) corresponding to the end surface shape of the pressing projection (2) can be formed on the upper surface portion of the anti- have. Since the bottoming composition for coating with concavity and convexity is pressed against the end face of the pressing protrusion 2 by the rotational force and the load of the concavo-convex forming roller 10 and is brought into close contact with the object face K side, The adhesion strength of the resin (M) can be further improved.

At this time, the base material to be mixed into the unevenness-forming layer-coating flooring composition has a viscosity in the range of 100 to 800 mPa · s so that the curing time can be controlled to improve the shape precision of the unevenness-generating layer (b) . Here, the shape precision of the roughening layer (b) is preferably understood to be a degree that the groove (x) and the convex portion (y) are distinctly stepped and the groove (x) and the convex portion (y) Do.

That is, the flooring composition for coating with a roughening layer according to the present invention can be rapidly cured at a low temperature or a normal temperature range without any separate curing means such as an optical radiator or a heater, as it is mixed at a composition ratio described later. Therefore, the cost for constructing the anti-slip coating layer (M) can be reduced, and the work required period and the traffic control period can be shortened, so that the workability can be remarkably improved.

Since the polymerization (curing) rate is controlled so that the groove (x) and the convexity (y) of the roughened layer (b) are clearly and uniformly formed on the upper surface of the anti- The anti-slip effect by the frictional force can be further improved. Furthermore, since the water film phenomenon that may occur when the surface tension of the anti-slip coating layer (M) changes according to the temperature is minimized, the anti-slip effect of the road can be remarkably improved even in rainy weather.

Meanwhile, the flooring composition for coating with a roughening layer according to an embodiment of the present invention comprises 50 to 60% by weight of a base material, 30 to 40% by weight of an aggregate, 3 to 5% by weight of a colorant, By weight of a viscosity controlling agent, 1.5 to 2.5% by weight of wax and 0.5 to 1% by weight of benzoyl peroxide.

The base material may include 30 to 50% by weight of a binder containing a polymethyl methacrylate resin having a viscosity of 100 to 2,000 mPa · s, and a glycidyl methacrylate having a number average molecular weight of 142 based on the total weight of the base material 1 to 2% by weight of a curing accelerator containing N, N-dimethyl-P-toluidine having a number average molecular weight of 135, and 4 to 10% by weight of a synthetic zeolite, To 8 wt% of a humidity control agent, 20 to 30 wt% of an extender pigment, and 10 to 15 wt% of an acrylic modifier.

In detail, the binder preferably includes the polymethyl methacrylate resin having a viscosity of 100 to 2,000 mPa · s, which is contained in an amount of 30 to 50% by weight based on the total weight of the base material.

In this case, the poly methyl methacrylate resin (PMMA) easily undergoes polymerization reaction at a low temperature or room temperature environment without a separate curing means such as an irradiator or a heater, and is cured (cured) while being cured in the catalytic reaction. And, as long carbon molecule (-C-C-) ring is formed during the curing (polymerization) process, it is excellent in slip resistance, durability, abrasion resistance, flexibility and adhesion.

Thus, when the flooring composition for coating with concavity and convexity including the polymethylmethacrylate resin is applied to the object surface, it is coated with a uniform thickness, and workability can be improved. Also, since the slip of the vehicle due to the slip resistance is prevented after being hardened by the anti-slip coating layer, the safety of the vehicle can be remarkably improved. Further, since the crack, breakage and peeling of the anti-slip coating film layer caused by the load or impact of the vehicle being operated are minimized, safety life can be prolonged with improved safety.

At this time, if the polymethylmethacrylic resin is less than 30 wt% or more than 50 wt% based on the total weight of the base material, adhesion and solubility with other blends are lowered. Thus, when the unevenness-forming-layer-containing flooring composition is applied to the object surface, the ability to form the anti-slip coating layer may be reduced. Therefore, the polymethylmethacrylic resin is preferably contained in an amount of 30 to 50% by weight based on the total weight of the base material.

Also, the polymethyl methacrylate resin is preferably provided in a viscosity ranging from 100 to 2,000 mPa · s so that wettability with other blends is improved and workability is improved when the flooring composition for coating with unevenness forming layer is applied to the road surface . That is, since the polymethyl methacrylic resin is provided as a liquid having a viscosity that is not a powder or a solid, it can be uniformly mixed with other blend without any additional organic solvent, which is environmentally friendly.

On the other hand, in order to improve the mechanical properties such as hardness and tensile strength of the anti-slip coating layer formed on the object surface, the strength-maintaining agent comprising the glycidyl methacrylate having a number average molecular weight of 142 By weight.

At this time, when the glycidyl methacrylate is contained in an amount of less than 10% by weight, the hardness of the anti-slip coating layer becomes excessively high and the impact resistance is lowered as the elongation is lowered. On the contrary, when the glycidyl methacrylate is contained in an amount exceeding 20% by weight, the extensibility of the non-slip coating layer becomes excessively high, so that the coating layer cracks or breaks due to a decrease in tensile strength. As a result, the adhesive strength to the object surface is lowered, and the non-slip coating film layer may fall off from the object surface during long-term use.

Accordingly, the glycidyl methacrylate is contained in an amount of 10 to 20% by weight based on the total weight of the base material, so that the unevenness-forming layer-containing flooring composition has a predetermined elongation and tensile strength. Accordingly, the durability and impact resistance of the anti-slip coating layer can be remarkably improved even when load and impact are applied to the vehicle due to repetitive operation of the vehicle.

N, N-dimethyl-P-toluidine (N, N-dimethyl-P-toluidine) having a number average molecular weight of 135 is included as a curing accelerator and is added in an amount of 1 to 2% by weight based on the total weight of the base material . Specifically, when the N, N-dimethyl-P-toluidine is contained in an amount of less than 1% by weight, the hardening rate of the flooring composition for forming a concavo-convex forming layer is delayed and a partial uncured portion is formed on the object surface. As a result, the curing time of the anti-slip coating layer is delayed, and the shape precision of the unevenness-forming layer formed on the upper surface is lowered and the sliding resistance is lowered.

On the other hand, if the amount of N, N-dimethyl-P-toluidine is more than 2% by weight, the coating of the anti-slip coating layer due to the radical curing reaction of the flooring composition for coating with unevenness- Curing proceeds before the unevenness forming layer forming operation is completed. As a result, the workability of the flooring composition for application of the roughening layer-forming coating material is lowered, and the physical properties of the anti-slip coating film layer are lowered, thereby decreasing slip resistance and durability.

Accordingly, the N, N-dimethyl-P-toluidine is added to the base material in an amount of 1 to 2, preferably 1 to 2, in terms of the total weight of the base material, so that the curing rate can be controlled in accordance with the time of the application of the flooring composition for coating with the unevenness- By weight.

Furthermore, since the N, N-dimethyl-P-toluidine is mixed with the base material having an acrylic resin as a main material, the coating composition can be applied to the surface of the substrate in a uniform thickness It can be firstly adjusted to the viscosity. As a result, the thickness of the anti-slip coating layer is uniformly formed, and the coating workability and slip resistance are improved, because the flooring composition for coating the unevenness-forming layer is applied to the object surface and prevented from spreading or falling down by the load . Further, since the concavo-convex shape can be clearly and easily formed by the roller having the surface patterned like the above-mentioned concavo-convex roller, the sliding resistance can be further improved.

Meanwhile, it is preferable that 20 to 30% by weight of extender pigments are contained in the base material. The extender pigments may be selected from the group consisting of light calcium carbonate, heavy calcium carbonate, antimony trioxide, antimony pentoxide, barium sulfate, clay, As shown in FIG.

In detail, when the extender pigment is contained in an amount of less than 20% by weight, the abrasion resistance and hardness of the anti-slip coating layer formed by coating and curing on the object surface are lowered. In addition, since the vehicle easily wears or falls off when passing through the vehicle, repetitive maintenance and repair are required, resulting in a significant reduction in economic efficiency. On the other hand, if the extender pigment is contained in an amount of more than 30% by weight, the wettability with the other mixture is lowered, and the workability of applying the flooring composition for surface-roughening layer coating is deteriorated. Therefore, it is preferable that the extender pigment is included in an amount of 20 to 30% by weight based on the total weight of the base material so as to improve the sliding resistance and durability of the surface roughness-imparting coating composition.

Furthermore, it is preferable that the extender pigment is formed to have a particle size within a range of 200 to 500 mesh so that the extender pigment is uniformly dispersed and mixed in the surface roughness-imparting coating composition.

On the other hand, it is preferable that 4 to 8% by weight of synthetic zeolite is contained as a humidity control agent. At this time, if the synthetic zeolite is contained in an amount of less than 4% by weight, hygroscopicity is lowered, and the physical properties of the flooring composition for surface-roughening layer coating due to moisture are lowered. On the other hand, when the synthetic zeolite is contained in an amount of more than 8% by weight, the hygroscopicity is improved, but the efficiency is lowered and the manufacturing cost is lowered and the economical efficiency is lowered.

Accordingly, it is preferable that the synthetic zeolite is contained in an amount of 4 to 8% by weight based on the total weight of the base material so that the unevenness-forming-layer-coating material composition satisfies predetermined physical properties and reduces manufacturing costs. Thus, by controlling the humidity in the flooring composition for coating with the roughening layer, it is possible to prevent the deterioration of the physical properties of the extender pigment due to moisture, and to control the wettability of each mixture to be uniformly mixed.

Further, the synthetic zeolite may be provided to have a unit cell size of 3 to 5 angstroms, preferably 4 angstroms, so as to be uniformly dispersed in the surface layer composition for surface-roughening coating.

It is preferable that 10 to 15% by weight of the acrylic modifier is contained based on the total weight of the base material. Preferably, the acrylic modifier is one selected from the group consisting of an acrylic rubber having a number average molecular weight of 60,000 to 120,000, an acrylic polymer having a Tg value of 50 to 70 ° C, and a mixture thereof.

In particular, the acrylic rubber is a rubbery elastomer obtained by polymerization of an acrylate ester, and is characterized by excellent mechanical properties such as tensile strength and elasticity, heat resistance, oil resistance, ozone resistance, light resistance and aging resistance. Accordingly, durability of the anti-slip coating layer due to load and impact at the time of vehicle operation is improved, and maintenance cost is reduced, which is economical.

Also, since the acrylic modifier has an average molecular weight of 60,000 to 120,000, curing (polymerization) with the acrylic resin included in the base material can be stably performed. This can further improve the sliding resistance, durability, abrasion resistance, flexibility and adhesion of the flooring composition for coating with the roughening layer. Further, since the acryl-based modifier includes an acrylic polymer having a Tg value of 50 to 70 ° C, a stable curing reaction progresses with respect to the external environment temperature, so that the mechanical properties of the flooring for coating the unevenness-forming layer can be remarkably improved.

If the acrylic modifier is contained in an amount of less than 10% by weight, the hardness of the non-slip coating layer applied and cured on the object surface is excessively increased to lower the elongation and impact resistance. On the other hand, if the acrylic modifier is contained in an amount exceeding 15% by weight, elongation and impact resistance are good, but cracking and breakage of the anti-slip coating layer may occur due to lowering of tensile strength.

Accordingly, since the acrylic modifier is contained in an amount of 10 to 15% by weight based on the total weight of the base material, the hardness of the anti-slip coating layer coated and cured on the object surface is improved and the elongation is maintained, Can be improved and the service life can be remarkably prolonged.

Herein, the base material is a mixture of glycidyl methacrylate, N, N-dimethyl-P-toluidine, synthetic zeolite, extender pigment, and the like, using a polymethyl methacrylate resin having a viscosity of 100 to 2,000 mPa.s as a binder as a main mixture. And the acrylic modifier are mixed so as to have a viscosity of 100 to 800 mPa · s.

Accordingly, when the surface layer containing the base material is applied to the surface to be coated, the spreading or flowing down of the base material can be minimized and the surface layer can be coated with a uniform thickness. Accordingly, the bottom surface composition for coating with the roughening layer is applied to the target surface, and the boundary between the roughened portion formed at the time of pressing the roughening roller and the convex portion is clearly formed, so that the workability can be improved. Also, since the hardening time of the unevenness-imparting layer-coating material for flooring composition is controlled to improve the shape precision of the unevenness-forming layer, the anti-slip resistance of the non-slip coating layer can be further improved.

Meanwhile, it is preferable that the base material mixed in the above-mentioned composition ratio is included in the unevenness-forming layer-coating flooring composition in an amount of 50 to 60% by weight based on the total weight of the unevenness-forming layer-coating flooring composition.

If the base material is contained in an amount of less than 50% by weight, the wettability with the other mixture and the adhesion strength of the base material are lowered, thereby deteriorating the overall mechanical properties of the flooring composition for coating layer. On the other hand, when the base material is contained in an amount exceeding 60% by weight, the viscosity of the surface layer composition for coating with concavity and convexity is lowered, so that the coating layer applied to the object surface is difficult to be coated with a uniform thickness. In addition, a water film phenomenon occurs on the surface of the non-slip coating film layer formed by coating and curing the surface roughness-imparting coating composition for surface-roughening layer, thereby decreasing the sliding resistance.

Therefore, the base material may be added to the surface of the unevenness-imparting layer-applying flooring composition to improve the durability of the anti-slip coating layer after being cured, while uniformly forming the unevenness using the application roller and the uneven- 50 to 60% by weight.

The aggregate may include at least one selected from the group consisting of silica, quartz, silicon dioxide, hydrocarbons, jadeite, glass beads, beads, and mixtures thereof. At this time, the glass bead further includes high-refraction glass beads, thereby improving the durability of the unevenness-forming-layer-coating material composition and improving night visibility.

When the aggregate is contained in an amount less than 30% by weight, the slip resistance and durability of the anti-slip coating layer are lowered. When the aggregate is contained in an amount exceeding 40% by weight, the wettability is lowered, The property is deteriorated. Moreover, since the adhesion strength between the anti-slip coating layer and the object surface is lowered, the slip prevention effect is lowered as the anti-slipping coating film layer is separated from and peeled off from the object surface during vehicle operation, resulting in a significant decrease in safety. Further, the vehicle is damaged by peeling off the removed object from the object surface, and economical efficiency due to repetitive maintenance work is lowered.

Therefore, it is preferable that the aggregate is included in an amount of 30 to 40% by weight based on the total weight of the unevenness-forming layer-coating flooring composition so that the coating operation of the unevenness-forming layer-coating flooring composition is easy and the adhesion strength and slip resistance are improved.

As the coloring agent, it is preferable that the iron oxide is contained in an amount of 3 to 5% by weight based on the total weight of the unevenness-generating-agent-containing flooring composition. Here, the iron oxide is eco-friendly as an inorganic pigment which is excellent in visibility and non-toxic and pollution-free.

If the amount of the iron oxide is less than 3% by weight, the color is not clear and it is difficult to provide a satisfactory visibility. If the iron oxide is contained in an amount exceeding 5% by weight, the wettability is lowered and the required amount of other necessary mixtures can not be used. The physical properties of the floor coating composition for forming layer are lowered.

Therefore, it is preferable that the iron oxide is included in an amount of 3 to 5% by weight based on the total weight of the unevenness-forming layer-coating floor composition so as not to affect the physical properties of the anti-slip coating film layer while improving visibility. At this time, the iron oxide may be any one selected from the group consisting of red iron oxide, yellow iron oxide, and mixtures thereof.

On the other hand, as the sedimentation inhibitor, it is preferable that the viscosity modifier is contained in an amount of 3 to 4% by weight based on the total weight of the flooring composition for covering the unevenness forming layer. The viscosity modifier may include silica. For example, K-200 fumed silica of OCI may be used.

At this time, if the viscosity controlling agent is included in an amount of less than 3% by weight, thixotropy and sedimentation resistance are lowered, so that it is difficult to apply the coating composition to a uniform thickness due to partial sedimentation when applying the flooring composition for coating the unevenness forming layer. On the other hand, if the viscosity controlling agent is contained in an amount exceeding 4% by weight, the viscosity of the flooring composition for surface-roughening layer coating is excessively increased, wettability is decreased, and coating and unevenness-forming work due to spreading or flowing down is difficult.

Therefore, it is preferable that the viscosity adjusting agent is contained in an amount of 3 to 4% by weight based on the total weight of the unevenness-forming layer-coating flooring composition so that the thickness of the unevenness-imparting layer-applying flooring composition applied to the object surface is uniformly formed.

On the other hand, it is preferable that 1.5 to 2.5% by weight of the wax is contained as the antifouling agent so as to prevent surface contamination of the anti-slip coating layer. Here, the wax is preferably one of the group consisting of paraffin wax, polyethylene wax, and mixtures thereof. At this time, the wax is included to block oxygen in the atmosphere and to prevent sticking of the hardened and dried anti-slip coating layer surface to minimize surface contamination.

In detail, when the wax is contained in an amount of less than 1.5% by weight, the antifouling performance of the surface is deteriorated. When the wax is contained in an amount of more than 2.5% by weight, the sliding resistance of the antiskid coating layer is lowered by oil. Accordingly, it is preferable that the wax is contained in an amount of 1.5 to 2.5% by weight so as to maintain the sliding resistance while preventing adhesion of the contaminants to the anti-slip coating layer when the vehicle is running.

On the other hand, as the reaction rate controlling agent, it is preferable that the benzoyl peroxide is contained in an amount of 0.5 to 1% by weight based on the total weight of the flooring composition for covering the unevenness forming layer. Here, the reaction rate is preferably understood as the rate of curing (polymerization) at which the unevenness-forming-layer-containing flooring composition is cured.

Specifically, the benzoyl peroxide is included as an initiator of the curing mechanism. When the amount of the benzoyl peroxide is less than 0.5% by weight, a delay in the curing rate of the flooring composition for coating with a roughening layer and a partial uncured portion occur upon application to the target surface. In addition, the shape precision of the pressure-gauge-formed layer formed during the rotation of the roller for forming concave-convex portions is lowered, and the sliding resistance of the anti-slip coating layer is lowered.

On the other hand, if the benzoyl peroxide is contained in an amount of more than 1% by weight, the pot life of the flooring composition for coating with concavity and convexity is shortened and cured before the application of the antiskid coating layer and the formation of the concavo-convex forming layer are completed . As a result, the workability at the time of applying the flooring composition for coating with the unevenness-forming layer is lowered, and the physical properties of the anti-slip coating layer are lowered, and the slip resistance and durability are remarkably lowered. Moreover, the flooring composition for application of the unevenness-forming layer is hardened before the coating operation, resulting in an increase in the amount of waste, resulting in lowering of economic efficiency.

Therefore, it is preferable that the benzoyl peroxide is contained in an amount of 0.5 to 1% by weight based on the total weight of the flooring composition for covering the roughening formation layer.

Furthermore, since the benzoyl peroxide is mixed in the field before applying the flooring composition for coating with the roughening formation layer to the target surface, the roasting time of the roughening composition-applying flooring composition can be stably controlled.

Accordingly, the flooring composition for coating with a roughening layer according to the present invention is prepared so that the polymethylmethacrylate resin as a binder has a viscosity ranging from 100 to 2,000 mPa · s, uniformly mixed with other mixture without any additional organic solvent, It can be applied with a constant thickness. Further, the curing rate in the range of low temperature to room temperature is controlled by N, N-dimethyl-P-toluidine contained in the base material together with benzoyl peroxide as a reaction rate controlling agent, without any curing means, .

In addition, the above-mentioned acrylic modifier including the aggregate and the acrylic rubber having a number average molecular weight of 60,000 to 120,000 is included to improve the mechanical properties, impact resistance, aging resistance, light resistance and the like of the anti-slip coating layer, thereby improving durability. In addition, since the viscosity control agent containing silica as the anti-settling agent is mixed, the unevenness-forming layer formed by the rollers for forming concavities and convexities is uniformly and clearly formed, so that the sliding resistance can be remarkably improved.

Further, in order to improve the visibility of the anti-slip coating film layer, 3 to 5% by weight of iron oxide, which is a non-toxic and non-polluting inorganic pigment, is contained as a colorant and the use of a separate toxic organic solvent is limited, .

FIG. 2 is a flowchart illustrating a method of manufacturing a flooring composition for coating with a roughening layer according to an embodiment of the present invention.

As shown in FIG. 2, it is preferable that the unevenness-forming-layer-coating flooring composition is prepared by mixing stepwise by the following procedure.

First, 3 to 5% by weight of the coloring agent containing iron oxide is added to the base material and mixed to form a first mixture (s10). The base material may include 30 to 50 wt% of a binder including the polymethylmethacrylate resin having a viscosity of 100 to 2,000 mPa · s, 10 to 50 wt% of a binder having a number average molecular weight of 142, 1 to 2% by weight of the curing accelerator including 20% by weight of the strength-maintaining agent and N, N-dimethyl-P-toluidine having a number average molecular weight of 135 and 4 to 8% by weight of synthetic zeolite The humidity control agent, 20 to 30% by weight of the extender pigment, and 10 to 15% by weight of the acrylic modifier.

The base material is mixed with the binder, the strength-retaining agent, the curing accelerator, the humidity control agent, the extender pigment, and the acrylic modifier in the weight percentages based on the total weight of the base material, It is preferably contained in an amount of 50 to 60% by weight based on the total weight of the flooring composition for forming layer.

At this time, the base material is stirred at 1,000 to 1,500 rpm for 7 to 12 minutes and mixed, so that each mixture can be uniformly dispersed and mixed. Here, the base material is formed by mixing N, N-dimethyl-P-toluidine together with the above-mentioned mixture to have a viscosity of 100 to 800 mPa · s. As a result, the flooring composition for applying the unevenness-forming layer can be applied to the target surface with a uniform thickness and the spreading or flowing down of the unevenness-forming layer can be minimized, so that the shape precision of the unevenness- Can be further improved.

3 to 4% by weight of the viscosity adjuster as an anti-settling agent and 1.5 to 2.5% by weight of the wax as a surface stain preventing agent are added to and mixed with the primary mixture to form a secondary mixture (s20).

At this time, it is preferable that the primary mixture, the viscosity adjusting agent and the surface antifouling agent are uniformly mixed and stirred at 700 to 1,000 rpm for 7 to 12 minutes to stabilize the mixture. That is, the mixing rate of the secondary mixture is lower than that of the primary mixture, so that the amount of bubbles that can be generated in the mixture is minimized and the mixture can be stably stirred. As a result, it is not necessary to add an additional defoaming agent, so that the required amount of the necessary mixture can be sufficiently incorporated and is economical.

Furthermore, as the mixture is injected and mixed in stages rather than being fed all at once, the homogeneity of the unevenness-forming-layer-coating flooring composition is improved, so that it can be applied to the object surface as a whole at a uniform mixing ratio. Accordingly, since the object surface to which the anti-slip coating layer is applied is formed to have a stable sliding resistance and durability as a whole, the safety during driving can be remarkably improved. Also, as the viscosity of the base material is controlled in the course of stirring the primary mixture, the workability of applying the flooring composition for surface-roughening layer coating to the object surface can be improved.

On the other hand, 30 to 40% by weight of aggregate, which is one selected from the group consisting of quartz, silicon dioxide, silicon carbide, jadeite, glass beads, and mixtures thereof, is added to and mixed with the secondary mixture to form a preliminary flooring composition s30). Then, 0.5 to 1% by weight of the benzoyl peroxide as a reaction rate regulator is mixed with the preliminary bottoming composition to prepare the flooring composition for coating with a roughening layer (s40), wherein the benzoyl peroxide is added to the target surface And mixed.

That is, as the benzoyl peroxide controlling the curing rate of the unevenness-forming layer-coating material composition is injected and mixed immediately before application to the object surface, the curing reaction of the unevenness-forming layer-coating material composition is rapidly performed, It is possible to prevent the problem that the amount of waste is increased due to the radical curing before being applied to the substrate.

Further, even if the benzoyl peroxide is secondarily mixed in a minimum amount in a state where N, N-dimethyl-P-toluidine is mixed with the base, the flooring composition for coating with concavity and convexity can be quickly cured in a low temperature to room temperature environment The hardening speeds are complementarily adjusted and the workability and economical efficiency can be remarkably improved.

Furthermore, as the mixture contained in the base material is first stirred and the other mixture is introduced stepwise, each mixture is homogeneously mixed to improve the uniformity of the anti-slip coating layer and the mixing speed is about 50 to 70% And is stirred while being decelerated. Accordingly, since the occurrence of bubbles is minimized during the production of the flooring composition for surface-roughening layer coating, it is mixed stably without any additives such as antifoaming agent, and the required amount of each mixture is sufficiently compounded, so that stable adhesion strength and slip resistance can be provided .

Component (% by weight) Example 1 Example 2 Example 3 Example 4 Example 5 Base material 50 53 55 57 60 aggregate 40 37 35 33 30 coloring agent 4 4 4 4 4 Viscosity modifier 3 3 3.5 3 3.5 Wax 2 2 1.5 2 1.5 Benzoyl peroxide One One One One One Sum 100 100 100 100 100

division Example 1 Example 2 Example 3 Example 4 Example 5 Bond strength (MPa)
(concrete) 1.8 2.4 2.8 2.8 2.7 Slip Resistance (BPN)
(No treatment) 90 88 92 85 80 Impact resistance clear clear clear clear clear

Table 1 is a table showing composition ratio ratios according to each example, and Table 2 is a table showing evaluation of adhesion strength, skid resistance and impact resistance of each of Examples prepared according to Table 1 above.

At this time, the adhesion strength was evaluated by preparing specimens for each example in the laboratory among the methods specified in KS F 2368, and the sliding resistance was evaluated according to the sliding resistance evaluation method specified in KS F 2375. Here, each specimen was manufactured by applying 3 mm thickness to a 300 × 300 × 60 mm concrete, and the adhesive strength was evaluated three times per each specimen and the average value was rounded to one decimal place to evaluate the performance. The impact resistance performance was evaluated by visually confirming appearance conditions such as dropout and cracking when dropped at an additional 500 mm height of 300 g. At this time, the specimens for each of the above-mentioned Examples were evaluated in a state where the surface was not formed with a separate unevenness forming process.

As shown in Tables 1 to 2, it was confirmed that the flooring composition for coating with a roughening layer according to an embodiment of the present invention showed good sliding resistance, adhesion strength and impact resistance in a state of being mixed in the composition ratio described above have.

As a result, by applying the flooring composition for coating with a roughening forming layer according to the present invention to the object surface, it is possible to improve safety according to the sliding resistance when the vehicle is running and to prevent cracking, fracture and separation from the object surface It can be confirmed that it has durability.

Item Comparative Example
(General fur roller) Example 3
(General fur roller) Example 3
(Roller for forming concave and convex) Laboratory Evaluation (BPN) 57 65 77 On-site evaluation (BPN) 65 68 85

Item Comparative Example
(General brush roller) Example 3
(General brush roller) Example 3
(Roller for forming concave and convex) Laboratory Evaluation (MPa) 1.3 2.2 2.5 On-site evaluation (N / mm ² ) 1.2 1.5 2.8

On the other hand, Tables 3 to 4 show evaluation results of the slip resistance and the adhesion strength by using the flooring composition for forming the unevenness-forming layer and the composition according to the comparative example prepared in the composition ratio according to Example 3 of the above Table 1 . Here, in the above comparative example, 2 to 4 parts by weight of titanium dioxide, 6 to 9 parts by weight of methylmethacrylate reaction resin, 14 to 17 parts by weight of polyamide hardener, 18 to 21 parts by weight of ceramic powder, 8 to 12 parts by weight of water, 4 to 8 parts by weight of water and 2 to 4 parts by weight of a heat stabilizer.

At this time, the composition according to the comparative example and the flooring composition for coating with the roughening forming layer according to Example 3 were prepared by coating the ascon specimen prepared in the laboratory and the surface of the ascon packed in the same manner, respectively. Then, the surface of each composition applied to each of the Ascon and Ascon specimens was treated with a brush roller to form an uneven surface, and the slip resistance and the adhesion strength were evaluated. At this time, the brush roller used in the evaluation is provided with a plurality of bristles protruding at an irregular surface on the outer peripheral surface.

In addition, an aspheric specimen was further prepared in the same manner as in the above-mentioned conditions to apply the flooring composition for a roughening layer-forming coating according to Example 3, and then evaluated for the skid resistance and the adhesion strength in a state where the roughening- .

In order to ensure the reliability of the evaluation, STS-KTS, which is a test standard for non-slip materials, has been commissioned (Construction-R-16-03) Each item was evaluated by the test method according to 1102-1890: 2015. At this time, the evaluation of the slip resistance in the laboratory was carried out after the test of wear resistance 1 million times.

The evaluation of slip resistance in Table 3 means that the closer to 100, the greater the slip resistance. In Table 4, the larger the number, the stronger the adhesion strength.

That is, as shown in Tables 3 to 4, it can be confirmed that the flooring composition for coating with roughening layer according to the present invention has excellent sliding resistance and adhesion strength as compared with the conventional composition. Furthermore, it has been confirmed from actual test results that the brush roller has a higher adhesion strength and slip resistance when the concavo-convex forming layer is formed while being pressed by the concavo-convex forming roller as compared with the brush roller which scratters the surface to form a simple concave-

Therefore, the unevenness-forming layer is formed by pressing of the unevenness-forming roller together with the sliding resistance, durability, impact resistance and abrasion resistance of the unevenness-forming-layer-for-coating flooring composition according to the present invention, The synergy effect that the safety and the durability can be further improved can be provided.

In addition, non-toxic and non-polluting iron oxides are used as colorants, and harmful elements such as organic solvents and plasticizers are minimized, thereby being eco-friendly.

Example 3
(Roller for forming concave and convex) Example 6
(Roller for forming concave and convex) Example 7
(Roller for forming concave and convex) Precision forming layer precision Good Bad
(Poor coating) Bad
(Uneven shape of concavity and convexity)

Meanwhile, Table 5 shows the evaluation according to the content of N, N-dimethyl-P-toluidine and benzoyl peroxide. Example 3 is a composition prepared in accordance with Example 3 of Table 1, Example 6 is a mixed composition excluding benzoyl peroxide in Example 3, Example 6 is a composition comprising N, N-dimethyl-P-toluidine are excluded. In Example 6, the N, N-dimethyl-P-toluidine was further contained in correspondence with the weight percent of the benzoyl peroxide excluding the N, N-dimethyl-P-toluidine ≪ / RTI > and the benzoyl peroxide was further included corresponding to the weight percent.

Then, the compositions according to Examples 3, 6 and 7 were prepared, applied to the as-prepared specimen prepared in the laboratory, and the unevenness-forming layer was formed with the unevenness-forming roller, and then the accuracy of the unevenness-forming layer was visually confirmed.

Here, in Example 3, it was visually confirmed that the unevenness-forming layer was cured in a state where the step difference was remarkably formed. On the other hand, in the case of Examples 6 and 7, since the N, N-dimethyl-P-toluidine or benzoyl peroxide is excessively contained in an appropriate amount by weight or more, the coating workability is poor and the coating is radically hardened It was confirmed that the shape of the unevenness was unclear.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

1: Body part 2: Pressing projection
10: roller for forming concave and convex K:
M: anti-slip coating film layer b:

Claims (5)

Forming layer for coating is provided so as to form a roughening layer by pressurization on an upper surface of the roughening layer,
50 to 60% by weight of a base material containing an acrylic resin;
30 to 40% by weight of aggregate composed of one selected from the group consisting of quartz, silicon dioxide, silicon carbide, jadeite, glass beads, and mixtures thereof;
3 to 5% by weight of a colorant including iron oxide;
3 to 4% by weight of a viscosity control agent as an anti-settling agent;
1.5 to 2.5% by weight of a wax as surface contaminants; And
0.5 to 1% by weight of benzoyl peroxide as a reaction rate controlling agent,
Wherein the base material comprises 30 to 50% by weight of a binder comprising a polymethylmethacrylate resin having a viscosity of 100 to 2,000 mPa · s based on the total weight of the base material, and a binder having a number average molecular weight of 142 and glycidylmethacrylate 1 to 2% by weight of a hardening accelerator containing N, N-dimethyl-P-toluidine having a number average molecular weight of 135 and 4 to 8% by weight of a synthetic zeolite, By weight of a humidity control agent, 20 to 30% by weight of an extender pigment, and 10 to 15% by weight of an acrylic modifier,
Wherein the viscosity of the roughening layer is in the range of 100 to 800 mPa · s to control the curing time for the precision of the roughening layer. delete The method according to claim 1,
Wherein the extender pigment is one selected from the group consisting of light calcium carbonate, heavy calcium carbonate, antimony trioxide, antimony pentoxide, barium sulfate, clay and mixtures thereof, and has a particle size of 200 to 500 mesh. Flooring composition. The method according to claim 1,
Wherein the acrylic modifier is one selected from the group consisting of an acrylic rubber having a number average molecular weight of 60,000 to 120,000, an acrylic polymer having a Tg value of 50 to 70 ° C, and a mixture thereof.
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