KR100544096B1 - The composition for preventing slip and the constructing method thereof - Google Patents

Abstract

According to an aspect of the present invention, a non-slip composition comprising a liquid epoxy resin, calcium carbonate, pigment, a modified epoxy resin and a hardening agent comprising a modified amine, a solvent-free diluent, a curing accelerator, a corrosion inhibitor and a silicate According to still another aspect of the present invention, there is provided a curing agent including a liquid epoxy resin, a calcium carbonate, a pigment, a modified epoxy resin, and a curing agent including a modified amine, a solvent-free diluent, a curing accelerator, and a corrosion inhibitor. 1: preparing an epoxy mixture mixed in a ratio of 1: Applying the mixed epoxy mixture to the non-slip surface by a quantitative discharging method; Primary curing the applied epoxy mixture; Applying silica with a blower on top of the cured epoxy mixture to spread the silica; Secondary curing at room temperature; Provided is a non-slip surface construction method comprising the step of recovering residual silica using a dry vacuum pump.

Anti-slip, silica, construction method

Description

Composition for preventing slip and the constructing method

1 is a flow chart showing a construction method of the anti-slip surface according to the present invention.

The present invention relates to a non-slip composition and a method of constructing an anti-slip surface using the same, and more particularly, to a quick-drying anti-slip composition and a method for using the same, which have an excellent adhesion to the non-slip surface and can significantly reduce the road blocking time. It is about a construction method.

In general, there are many curved roads and downhill roads compared to the speed of vehicles that run on highways, national roads, and local roads. In these places, the road surface is slippery, so that the vehicles leave the road or roll over on curved roads. In order to prevent such accidents, anti-slip facilities have been used a lot, and recently, as interest in safety accidents increases, the utilization of such facilities in the front of schools, pedestrian crossings, and parking lots and industrial sites is increasing. .

Conventional anti-slip facilities are largely used in four types, firstly by applying resin to the road, slag (slag) and then compacted with a roller to finish. Since the solidification time of resin is about 3 ~ 4 hours and it is very long, the whole construction time takes more than 5 hours, and the ride comfort is not very good when driving the car, causing severe vibration in the car There is a problem to facilitate. Secondly, there is a form of finishing by applying resin, sprinkling waste glass, and curing. This method is weak in abrasion resistance, and when used for a long time, waste glass having irregularities on the surface is peeled off from the resin component to prevent slipping. There is a problem of poor performance. Third, there is a method of applying coarse sand (sand) with resin and forcibly applying heat directly to the road surface. This method is fast drying and it is good to open the traffic quickly. Flies Aggressive wear also results in non-slip facilities being ineffective. Fourth, there is a method of applying a high-viscosity epoxy resin and a small size of the silica sand is applied by hand at room temperature. In this method, due to the temperature difference with the road surface, high-viscosity epoxy is not adhered to the road surface and is immediately dropped.

The present invention was created in view of the above necessity, to provide a quick-drying anti-slip composition and a construction method using the same, which has excellent adhesion and minimizes the dropping of aggregates, minimizes the wear rate, and significantly reduces the traffic blocking time. The purpose is.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. In addition, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The anti-slip composition according to an aspect of the present invention comprises a liquid epoxy resin of 60 to 75 wt%, 20 to 30 wt% calcium carbonate, 1 to 5 wt% pigment and 1 to 5 wt% modified epoxy resin With the subject; A hardener comprising 60 to 75 wt% of a modified amine, 15 to 25 wt% of a solventless diluent, 5 to 15 wt% of a curing accelerator and 2 to 10 wt% of a corrosion inhibitor in a weight ratio of 9 to 11: 1 And silica is mixed with the mixed main material and the hardener.

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On the other hand, the liquid epoxy resin is preferably produced by reacting epichlorohydrin and bisphenol F.

According to another aspect of the present invention, a curing agent including a main body containing a liquid epoxy resin, a calcium carbonate, a pigment, a modified epoxy resin, a modified amine, a solvent-free diluent, a curing accelerator, and a corrosion inhibitor is selected from 9-11: 1. Preparing an epoxy mixture mixed in proportions; Applying the mixed epoxy mixture to an anti-slip surface by a quantitative discharging method; Primary curing the applied epoxy mixture; Spraying quartzite by applying pressure with a blower on top of the cured epoxy mixture; Secondary curing at room temperature; Provided is a method of constructing an anti-slip surface comprising recovering residual silica using a dry vacuum pump.

The terms or words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

First, it will be described in detail for the anti-slip composition according to a preferred embodiment of the present invention.

The anti-slip composition includes a main material, a hardener and silica.

First, the subject matter includes liquid epoxy resins, calcium carbonate, pigments and modified epoxy resins.

As one embodiment of the liquid epoxy resin, a liquid epoxy resin such as Chemical Formula 1 produced by polymerizing epichlorohydrin and bisphenol F is preferable.

Conventional epoxy resins were obtained by reacting epichlorohydrin and bisphenol A. However, due to the high viscosity of bisphenol A, when curing agents are mixed, the curing time is fast, and it is impossible to quantitatively discharge the pump in the quantitative discharge pump to be described later. On the other hand, the bisphenol F has a low viscosity and good reactivity with other compounds. Bisphenol F is able to maintain a low viscosity because the methyl group (CH3) in the bisphenol A is substituted with the H group is less steric hindrance. Therefore, the mixing ratio of the main material and the curing agent can be increased to a weight ratio of 9 ~ 11: 1, and quantitative discharge is possible. In general, when the mixing ratio of the curing agent to the subject is increased, the curing speed is fast, and quantitative discharge is impossible, and after curing, the resin hardens with high hardness and yellowing may easily come. This disadvantage can be overcome by using bisphenol F.

Calcium carbonate (CaCO3) is also commonly called bicarbonate and refers to the crushing of calcite into fine particles. The calcium carbonate serves to strengthen the coating film strength and prevent coating film shrinkage.

Pigment (Pigment) refers to a material that can express a variety of colors desired, one pigment selected from Molly Orange (Oxide Green), oxide green (Oxide Green), titanium dioxide (TiO₂) may be used.

Modified epoxy resins are used to increase the elongation in the subject. Carbon fiber reinforced plastics (CFRP), which is a carbon fiber reinforced thermosetting resin, is an example of the modified epoxy resin. In the road, the road repeatedly contracts and expands as the external environment changes, and an appropriate elongation must be given. The above CFRP has a high thermal oxidation resistance of 3000 ° C. or higher, and is excellent in chemical resistance and corrosion resistance. In addition, the coefficient of thermal expansion is small, resistant to thermal shock, and has the advantages of excellent wear resistance and vibration damping resistance. The subject matter preferably comprises a component ratio of 60 to 75 wt% of liquid epoxy resin, 20 to 30 wt% of calcium carbonate, 1 to 5 wt% of pigment and 1 to 5 wt% of modified epoxy resin.

Second, in the anti-slip composition, the curing agent includes a modified amine, a solvent-free diluent, a curing accelerator, and a corrosion inhibitor.

The modified amine is a substance produced by mixing the modified aliphatic amine represented by Chemical Formula 2 and the acid anhydride represented by Chemical Formula 3 in a constant ratio to adjust the curing rate by adjusting the blending ratio.

The hardening accelerator promotes hardening during the reaction between the liquid epoxy resin and the modified amine, thereby shortening the hardening time, and a tertiary amine such as Chemical Formula 4 may be used.

Solvent-free diluents adjust the viscosity of the anti-slip composition, adjust the film strength, and may use Aliphatic Glycidyl Ether as the reactive diluent. Since the solvent-free diluent is not added to the solvent there is an environmentally friendly advantage in the construction of the anti-slip surface.

Corrosin Inhibitors are materials used to prevent corrosion. Corrosion phenomenon refers to oxidation of metals such as iron, copper, and zinc produced by smelting from ore, and a small amount of invisible metal is always present on the road surface. This corrosion phenomenon may reduce the durability of the asphalt surface or concrete road surface. As a corrosion inhibitor for preventing corrosion, one salt selected from chromate, phosphate, and silicate may be used, and a small amount of higher amine is preferably added to the salt. The curing agent preferably contains a component ratio of 60 to 75 wt% of the modified amine, 15 to 25 wt% of the solventless diluent, 5 to 15 wt% of the curing accelerator, and 2 to 10 wt% of the corrosion inhibitor.

Third, silica is used as aggregate in the anti-slip composition. As an example of the silica, the road size is 2 to 3 mm and the hardness is preferably Rockwell hardness of 70 HRC or more, and the industrial size is 0.3 to 0.5 mm and the hardness is preferably Rockwell hardness of 70 HRC or more. Do. Conventionally, steelmaking slag, silica sand or sand is used as the aggregate of the anti-slip composition. However, such a conventional aggregate has a disadvantage in that its absorption rate is large, so that the delamination of the aggregate is accelerated when oxidation, corrosion, freezing, and melting are repeated, thereby shortening the lifespan of the anti-slip facility, and lowering economic efficiency due to high facility and maintenance costs. . On the other hand, silica, which is a natural mineral, has an excellent anti-slip effect because its hardness is higher than Rockwell hardness of 70 HRC and it is not broken or cracked due to abrasion. Do not. In addition, it has excellent chemical resistance, low absorption rate, no oxidation and corrosion, so the durability of the facility is very excellent, and because it is a natural mineral, there is no problem of environmental pollution.

Next, look at the construction of the non-slip surface.

1 is a flow chart showing a construction method of the anti-slip surface according to an embodiment of the present invention.

Referring to the drawings, a mixture including a liquid epoxy resin, a calcium carbonate, a pigment and a modified epoxy resin, and a curing agent including a modified amine, a solvent-free diluent, a curing accelerator, and a corrosion inhibitor are mixed in a ratio of 9 to 11: 1 ( S1). In general, the mixing ratio of the curing agent to the main agent is 4: 1, and as the ratio of the curing agent to the main agent increases, the curing speed is fast, so that quantitative discharge is impossible, and after curing, the resin becomes hard and hard to yellow. There are disadvantages that can come. However, as a preferred embodiment of the mixing ratio of the main agent and the curing agent, the ratio may be 9 to 11: 1, so that the quantitative discharge may be possible.

After mixing the main material and the curing agent, as shown in Figure 1, the mixed epoxy mixture is applied to the non-slip surface by the quantitative discharging method (S2). The epoxy mixture is applied twice to the non-slip surface. At the time of application | coating once, adhesiveness with a non-slip surface can be increased, and at the time of application | coating twice, adhesiveness with the silica mentioned later can be increased.

After applying the epoxy mixture, as shown in Figure 1, the applied epoxy mixture is first cured (S3). The primary curing is to increase the adhesion between the silica and the epoxy mixture before the spraying of the silica, which will be described later, and cures for about 30 minutes.

After the first curing, as shown in Figure 1, by applying a blower to the top of the cured epoxy mixture by spraying the silica (S4). When the spraying of the silica is made by a blower, the pressure of the blower is preferably maintained at 7 to 10 kgf / cm 2.

After spraying the silica, as shown in Figure 1, the secondary curing at room temperature (S5). The curing time is about 1 hour at room temperature. In the case of the conventional non-slip surface, forced hardening at high temperature, the road surface and the adhesion strength is remarkably low, the non-slip facility was immediately released, and in other cases, the curing time is mixed with the aggregate at room temperature It usually takes 6 to 7 hours, which causes a lot of troubles in the communication of traffic, resulting in a lot of loss of logistics costs, but in the non-slip surface construction method according to the preferred embodiment of the present invention, there is an advantage that the curing time can be shortened. .

After secondary curing at room temperature, as shown in Figure 1, the remaining silica is recovered (S6). Silica which is not adhered to the non-slip surface after the secondary curing is recovered using a dry vacuum pump.

Hereinafter, the anti-slip composition according to an embodiment of the present invention. The mixing ratio of the main material and the curing agent according to an embodiment of the present invention was 10.1: 1 in Example 1, 9.4: 1 in Example 2, and 10.2: 1 in Example 3, respectively.

Table 1 shows the content ratio of the anti-slip composition according to an embodiment of the present invention.

TABLE 1 Composition content ratio table according to each example (unit: weight%)

Example 1 Example 2 Example 3  subject Liquid epoxy resin 37 38 36.5 Calcium Carbonate (CaCO3) 13 12.8 14.0 Pigment 1.5 1.3 2.1 Modified Epoxy Resin (CFRP) 1.0 0.9 1.3  Hardener Curing accelerator 0.5 0.6 0.7 Solvent-free diluent 1.0 0.9 0.8 Modified amines 3.5 3.9 3.4 Corrosion inhibitor 0.2 0.25 0.4 Silica (Si) 42.3 41.35 40.8 Sum 100 100 100

Table 2 shows the quality performance of the anti-slip composition prepared in the content ratio shown in Table 1.

[Table 2] Quality performance comparison table for the anti-slip composition according to each Example (Test method is based on the construction material test KSF.KSM.KSB)

Test Methods standard Example 1 Example 2 Example 3  burr Absorption amount (%) KS F 2503 2.0% or less 0.9 0.7 0.5 Granularity KS F 2502 2.1mm to 3.5mm 2.1 3.0 3.5 Wear rate (%) KS F 2508 6 or less 0.9 0.9 0.9      Binder importance subject KS M 5000 1.30 or less 1.03 1.06 1.08 Hardener 1.09 1.12 1.11 Fastening Drying Time KS M 5000 Within 6 hours 1 hour 30 minutes 1 hour 25 minutes 1 hour 10 minutes  Tensile strength (kgf / ㎠) 1 day 20 ℃  KS M 3006 More than 20 58 55 62  7 days -10 ℃ More than 200 293 342 329 20 ℃ 50 or more 88 96 79 60 ℃ 5 or more 22 29 31  Elongation (%)  7 days -10 ℃  KS M 3006 5 or more 8 10 9 20 ℃ More than 15 29 22 20 60 ℃ 50 or more 60 58 52 Absorption rate (%) 63 ° C ± 3 ° C (200 hours distilled water) KS M 3027 2.0 or less 0.8 0.8 0.8 Adhesive strength (kgf / ㎠) KS B 5521 12 or more 19.5 20.8 22.5

As shown in Table 2, when the anti-slip composition according to the embodiment of the present invention is applied to a road or an industrial site, it exhibits excellent effects in tensile strength and elongation, and also has a high hardness and low wear rate of silica. It was found that the anti-slip agent exhibited an excellent effect that could not be achieved. In addition, the curing time of the conventional anti-slip agent in the drying time is usually 4 to 5 hours, which impeded a lot of traffic communication, the drying time of the non-slip surface according to an embodiment of the present invention is 1 hour to 1 The hardening is completed in 30 minutes, so a smooth flow of traffic can be expected.

As described above, the anti-slip composition and the construction method using the same according to the present invention provide the following effects.

First, in the subject of the anti-slip composition, bisphenol F can be used for quantitative discharge, so that the non-slip surface can be evenly applied.

Second, it is environmentally friendly using a solvent-free diluent.

Third, silica was used as the aggregate of the anti-slip composition.Silicite is very high as the Rockwell hardness is over 70 HRC, so the anti-slip effect is excellent, and it does not slip because it does not break or crack due to abrasion. No peeling off phenomenon occurs in terms of surface.

Fourth, since the composition of the anti-slip surface is quick-drying, it is possible to significantly reduce the passage blocking time during the formation of the non-slip surface.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Of course, various modifications and variations are possible within the scope of equivalent claims.

Claims (7)

A subject comprising 60 to 75 wt% liquid epoxy resin, 20 to 30 wt% calcium carbonate, 1 to 5 wt% pigment and 1 to 5 wt% modified epoxy resin; A hardener comprising 60 to 75 wt% of a modified amine, 15 to 25 wt% of a solventless diluent, 5 to 15 wt% of a curing accelerator and 2 to 10 wt% of a corrosion inhibitor in a weight ratio of 9 to 11: 1 , The anti-slip composition, characterized in that the silica is mixed with the mixed main material and the hardener. delete delete The method of claim 1, The liquid epoxy resin is a slipper composition, characterized in that the reaction product of epichlorohydrin and bisphenol F. The method of claim 1, The silica is, for road use, size is 2 to 3 mm and hardness is anti-slip composition, characterized in that the Rockwell hardness of 70 HRC or more. The method of claim 1, The silica is, in the industrial size is 0.3 to 0.5 mm and the hardness is anti-slip composition, characterized in that the Rockwell hardness 7 HRC or more. Preparing an epoxy mixture in which a main composition comprising a liquid epoxy resin, calcium carbonate, a pigment, a modified epoxy resin and a curing agent including a modified amine, a solvent-free diluent, a curing accelerator, and a corrosion inhibitor in a ratio of 9 to 11: 1 ; Applying the mixed epoxy mixture to a non-slip surface by a quantitative discharging method; Primary curing the applied epoxy mixture; Spraying quartzite by applying pressure with a blower on top of the cured epoxy mixture; Secondary curing at room temperature; A method of constructing an anti-slip surface comprising recovering residual silica using a dry vacuum pump.

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