KR20200032392A - Acrylic anti-slip coating composition - Google Patents

Abstract

The present invention relates to an eco-friendly water-based acrylic anti-slip paint composition using no organic solvent, wherein the paint composition: has excellent water repellency, and thus can address a water film-forming phenomenon during rain; has excellent humidity resistance, and thus is resistant to rain- or snow-induced damages; has excellent adhesion to the road and excellent abrasion resistance, and thus can prevent paved surfaces from easily cracking or wearing under loads, impacts, and etc.; has a fast curing time, and thus can reduce drying and curing times following the construction, thereby enabling a convenient construction; and enables travelling of vehicles after construction. In particular, the paint composition comprises: 10-20 parts by weight of 2-ethylhexylacrylate (2-EHA); 20-30 parts by weight of methyl methacrylate (MMA); 20-30 parts by weight of a filler; 2-10 parts by weight of a curing agent; and 1-10 parts by weight of a water repellent. The paint composition of the present invention can be usefully used anywhere in need of anti-slip properties, such as existing anti-slip pavements, bicycle road pavements, children protection zones, parks, bus lanes, concrete structures on top of buildings, parking lots using steel beams, and the like.

Description

Anti-slip acrylic paint {Acrylic anti-slip coating composition}

The present invention is excellent in water repellency to solve the water film phenomenon in the rain, there is no fear of being damaged by rain or snow because it is strong in humidity, and the adhesiveness and abrasion resistance to the road are excellent, so that the pavement surfaces are easily cracked or worn by loads and impacts, etc. It is excellent in durability such as not being used, and it has a fast curing time, so it can reduce drying and curing time after construction, so it is not only convenient for construction, but also an eco-friendly acrylic anti-slip coating that does not use any organic solvent that can pass vehicles quickly after construction. It relates to a composition.

In general, anti-slip pavement is a facility to increase the skid resistance of the pavement to promote safe driving of the vehicle.It increases the skid resistance of the pavement surface in places where the slip resistance of the road surface is low, where the road surface and the vertical alignment are poor, etc. A facility that is installed for the purpose of preventing traffic accidents by shortening the braking distance or by increasing the discriminative power of roads that people walk on, such as school roads and pedestrian crossings.

Also, the anti-slip pavement is installed in a section where the required level of slip resistance cannot be secured according to the road geometry and traffic characteristics, and is intended to enhance friction. That is, if the slip resistance of the pavement falls below a certain level over the entire section as the use period of the road increases, the road is repaired by using a non-slip coating composition to fundamentally increase the slip resistance in terms of pavement maintenance, Recently, the demand for the anti-slip coating composition has increased rapidly as it is applied to rooftops, outdoor parking lots, parks, etc. of buildings, which are slippery places when walking besides roads.

Looking at the contents of the patent application for research and development of the anti-skid coating composition as described above, in Korean Patent Application No. 2005-0070286, an anti-slip composition applied on the surface layer of a road made of asphalt or concrete, 01㎜-5㎜ Compositions comprising 10 to 90% by weight of spinel structured steel slag having a particle size, and 10 to 90% by weight of red alumina, garnet or mixtures thereof, which are natural ores having a particle size of 01 mm to 1 mm, are known. .

In addition, in Korean Patent Application No. 10-2006-0116873, 30 to 50 pigments of 3 to 6% by weight relative to 94 to 97% by weight of the initial composition in which the silica particles having a particle size of 1 to 4 mm were washed with water are washed. By heating to a temperature of ℃ to obtain a colored siliceous fragment, and a reflective metal powder of 06 to 1% by mixing with 99 to 994% by weight of the colored siliceous fragments to obtain a reflective colored siliceous fragment, the reflective colored siliceous fragments 85 to 94% by weight On the other hand, a method has been developed in which 6-15% by weight of a transparent adhesive is mixed with heating at a temperature of 35-55 ° C to mix the surface laying obtained on the surface of the cleaned road surface.

In addition, Korean Patent Publication No. 2006-0124544 discloses a non-slip semi-rigid packaging composition comprising 25 to 40% by weight of masher stone, 35 to 50% by weight of acrylic emulsion resin and 10 to 25% by weight of inorganic binder.

Domestic patent application No. 2007-0067846 proposes a composition in which a main material and a curing agent are separated into two-liquids as a floor resin layer to increase the slip resistance of the road surface, the subject being 40-60% by weight of modified epoxy resin, and reactive 12 to 18% by weight of a diluent, 8 to 12% by weight of a pigment, 13 to 27% by weight of a filler, and 3 to 7% by weight of an anti-settling agent; The curing agent discloses a composition comprising 35 to 53% by weight of a modified aromatic special amine curing agent, 35 to 53% by weight of a modified aliphatic amine curing agent, and 95 to 145% by weight of an aliphatic tertiary amine.

In addition, the domestic patent application No. 2007-16171 includes a base forming step of forming a base by applying a two-part coating comprising 50 to 70% by weight of urethane resin and 30 to 50% by weight of polyamide to a non-slip surface; A primary curing step of curing the coated paint; a subject comprising a urethane resin, calcium carbonate, pigment and modified resin on the upper surface of the base cured in the first curing step, and a modified amine, a curing accelerator, and a solvent-free diluent. Coating step of applying a composition containing a curing agent is mixed; A second curing step of curing the applied composition; And an aggregate spraying step of spraying aggregate on the top surface of the composition cured in the second curing step, while the anti-slip material construction method is proposed, and the aggregate reacts with a chemical, moisture, or liquid material. Therefore, it is disclosed to use gold ore stones that exhibit strong cohesion.

In Korean Patent Publication No. 2008-79234, a mixed resin composition of cement, silica, calcium carbonate, Arwin high-strength miscible material, acrylate polymer emulsion and acrylic ester polymer emulsion, and additives such as conventional antifoaming agent, thickener, dispersant, etc. Polymer cement mortar compositions are known, characterized in that they are added within%.

In Korean Patent No. 781575, an anti-slip composition composed of 10 to 90% by weight of natural ore and 10 to 90% by weight of tire cord yarn recovered from waste tires is known.

In the domestic registration patent No. 427779, one type of thermosetting resin selected from epoxy resins, urethane resins and acrylic resins 17-23% by weight, dispersant 05-1% by weight, antifoaming agent 03-04% by weight, polysiloxane 03-04% by weight %, 15 ~ 45% by weight of pigment, 24 ~ 28% by weight of filler, 1 ~ 2% by weight of modified urea solution, 35 ~ 45% by weight of silica sand, 72 ~ 82% by weight of curing agent, and 03 ~ 04 of curing accelerator

Anti-slip agents using thermosetting resins, characterized in that they are formulated in an amount of%, are known.

In addition, in Korean Patent Registration No. 0856420 1) is formed of a vinyl polymer or a copolymer and a low-viscosity MMA resin to which 38% by weight is added; 2) As a micro hollow body (MICRO HOLLOW SPHERE) with a size of 30 ~ 100㎛ with an independent bubble layer, alumina silica, bubble glass, pearl stone, etc. can be formed to show improved heat reflection efficiency and heat resistance effect by forming a closed air layer. A heat-insulating hollow pigment in which any one of the expanded soil of obsidian is added at 6% by weight; 3) a color pigment to which 6% by weight is added by mixing any of pre-treated colored pigments, inorganic pigments, or general pigments to either aluminum or zirconium to enhance heat shielding and to express color; 4) a filler that is formed of any one of calcium carbonate, kaolin, mica powder, barium sulfate, alumina glass fiber powder, crude silica, fine silica, glass bead, and fume silica to maintain the high viscosity of the binder, to which 50% by weight is added; A road slippery binder has been developed.

However, in the case of the anti-slip packaging constructed using the composition of the above patents, the anti-slip effect is greatly reduced as the packaging surfaces are easily cracked due to the load and impact of a large truck or the wear of the aggregate passes over time. After drying and curing time is long, there is a problem such as construction is inconvenient as a two-liquid type, not environmentally friendly by using an organic solvent.

The present invention is to solve the above-mentioned problems, it is excellent in water repellency to solve the water film phenomenon in rainy weather, there is no fear of being damaged by rain or snow due to the strong humidity, and the adhesion and abrasion resistance to the road is excellent, so load and impact It is excellent in durability such that the pavement surfaces are not easily cracked or worn by etc., and the curing time is fast, so it is possible to reduce drying and curing time after construction, so it is not only convenient to construct, but also uses an organic solvent that can pass vehicles quickly after construction. An object to be solved is to provide an environmentally friendly acrylic non-slip coating composition that does not.

The present invention is 10 to 20 parts by weight of 2-ethylhexyl acrylate (2-EHA) as an acrylic monomer, 20 to 30 parts by weight of methyl methacrylate (MMA) as a methacrylate monomer, 20 to 30 parts by weight of a filler, and curing agent 2 An acrylic anti-slip coating composition comprising ~ 10 parts by weight and 1 to 10 parts by weight of a water repellent is used as a solution to the problem.

As described above, the present invention is excellent in water repellency, thereby eliminating the water film phenomenon in rainy weather, and it is resistant to humidity, so there is no fear of being damaged by rain or snow, and the adhesiveness and abrasion resistance to the road are excellent, so that the pavement surfaces are easily affected by load and impact. It is excellent in durability such as not cracking or abrasion, and it has a fast curing time, so it can reduce drying and curing time after construction, so it is not only convenient for construction, but also environmentally friendly water that does not use any organic solvent that can pass vehicles quickly after construction. It provides an acrylic non-slip coating composition, and is useful for existing non-slip pavement, bicycle road pavement, children's protection area, park area, bus lane, rooftop concrete for buildings, steel-frame car parking lot, etc. There is an effect that can be used.

The present invention is 10 to 20 parts by weight of 2-ethylhexyl acrylate (2-EHA) as an acrylic monomer, 20 to 30 parts by weight of methyl methacrylate (MMA) as a methacrylate monomer, 20 to 30 parts by weight of a filler, and curing agent 2 An acrylic non-slip coating composition comprising ~ 10 parts by weight and 1 to 10 parts by weight of a water repellent is characterized as a technical feature.

Hereinafter, an acrylic non-slip coating composition according to the present invention will be described in detail.

In the present invention, the acrylic monomer is a binder used for imparting hydrophobicity in the composition, and is used to express adhesion even when impurities are present on the road surface. In particular, the use of a low glass transition temperature (Tg) is preferable because it can increase the adhesion. More specifically, those having a glass transition temperature (Tg) of -25 ° C or less are used, and examples thereof include methyl acrylate, ethyl acrylate, isopropyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, and octyl acrylate. And may be used by mixing any one or two or more selected from them, but is not limited thereto, 2-ethylhexyl acrylate is particularly preferred.

The 2-ethylhexyl acrylate is preferably used in an amount of 10 to 20 parts by weight of the composition, and when used in the above range, the desired hydrophobicity and adhesion can be imparted, but when used outside the above range, hydrophobicity and adhesion In addition to being vulnerable, there is a fear that water resistance and weather resistance are also vulnerable.

The methylmethacrylate (MMA) resin has excellent weatherability, which is weather- and weather-resistant such as sunlight, so it suppresses corrosion due to external environmental changes (weather and climate change), and at the same time penetrates into the package and integrates it. It is used to improve adhesion strength and toughness by zooming, and to improve colorability by pigments.

The methyl methacrylate (MMA) resin is a colorless transparent liquid, and after oxidation of tert-butyl alcohol (TBA) prepared by using C4 oil as a raw material in a gaseous state, methacrylic acid is prepared, followed by methanol. It can be prepared by esterification.

In addition, the methyl methacrylate (MMA) resin is used in many fields because of its excellent transparency, weather resistance, and colorability. The polymer material has different properties depending on the molecular weight, but the methyl methacrylate (MMA) resin has a rigid type and flexibility, and when radically polymerized at low temperature, the polymer chain structure exhibits a continuous regularity. Syndiotactic structure It shows the characteristic that the ratio of increases. In general, acrylic resins have a high coefficient of thermal expansion, but methyl methacrylate (MMA) resins tend to be highly stable. Methyl methacrylate (MMA) resins are known to have the formula CH2 = C (CH3) CO2CH3.

The methyl methacrylate (MMA) is preferably used in an amount of 20 to 30 parts by weight of the composition, and when used in the above range, exhibits strong mechanical strength and chemical properties during curing, particularly excellent in chemical properties as well as compressive strength. It has a high humidity-insensitive property, and has a fast-curing property that allows vehicles to pass within one hour after construction.

The filler to be added to the present invention exhibits an anti-slip effect, and is characterized in that the compositional weight ratio of pulverite powder: ceramic powder: silica is mixed 1: 1: 1.

Macbansheng is not a geological rock name, but it is known as a term used in Chinese medicine, and in geological classification, it belongs to granite. It is the same as quartz rock, feldspar, and granite rock, and coincides with quartz-monzonite. Quartz and feldspar are tightly mixed. It is named Macbansuk because it is like a rice ball made of barley rice with the appearance of a mixture of red or white dots on yellowish white, light yellowish brown, light gray, dark green, or light green rocks.

The main components of the maculite are silicic anhydride and aluminum oxide, and a small amount of ferric oxide is contained. What is known as medicinal stone is a yellowish-white pulmonary stone, which was previously used as a filter to purify pills, as an anti-inflammatory agent to treat skin diseases such as swelling or boils on the back. According to Donguibogam, the properties are sweet, warm and non-toxic.

In addition, it is composed of 30,000 to 150,000 holes per cm3, so it has strong adsorption properties and contains about 25,000 kinds of inorganic salts. Since it acts to exchange ions with heavy metals, it is also used as a noxious metal remover, and is known to emit far infrared rays when heat is applied to this rock. Because of these characteristics, it is used in various industries such as jjimjilbang, tableware, and medical equipment.

Doing.

Particularly, in the present invention, the pulverite added to the anti-slip coating composition has a specific surface area of 8 times or more and a porosity of 7 times or more than a general slag used as a fine aggregate. The use of a pulse rock having a large feature of the cross-section has an advantage in that the attachment force is increased to reduce dropping due to friction of the vehicle tire. It is preferable that the maculite is included in the filler in a weight fraction of 1/3, and if it exceeds or is less than the weight fraction, the workability of the coating composition is poor or the friction is reduced.

In addition, the ceramic powder is used to enhance the drying rate of film coating strength of the coating composition, and at least one of cement, steel slag, glass bead, silica, calcium carbonate, magnesium carbonate, talc, kaolin, and mica is used, and the weight fraction in the filler is used. It is desirable to include 1/3, if the content of these is large, the above properties are excellent, but with the bottom material surface

Adhesion, dry coating's wear resistance and water resistance are poor.

The silica sand is a non-slip filling material that forms irregularities on the surface with a particle size of 02-08 mm and uses 1/3 as a weight fraction in the filling material. Because it is comfortable when walking or passing a vehicle (walking and riding), it is not easily adhered to the coating film and is easily detached due to light shock from the outside. Therefore, the required sliding resistance value cannot be obtained.

On the other hand, it is preferable to use pulverized stone and silica sand in the filler having a particle size of about 02 to 08 mm, and the ceramic powder preferably has a particle size of 10 to 20 mesh. If the particle size is less than the above range, there is a problem that the anti-slip function is not sufficient. On the contrary, if it exceeds the above range, the surface protrusion is excessive and the movement of the athlete is easily prevented.

There is a problem with sweating.

The curing agent used in the present invention acts as an initiator for promoting the curing reaction of 2-ethylhexyl acrylate and MMA resin as a peroxide-based curing agent, and thus the curing reaction is rapidly performed, thereby shortening the construction period of the flooring construction. As a preferred curing agent, 2 to 10 parts by weight of benzyl peroxide (BPO) is used, and after the curing agent is mixed, the coating composition is cured at a temperature of -15 to 30 ° C for 30 to 50 minutes to form an anti-slip layer.

If the amount of the curing agent is less than the above-mentioned range, curing does not proceed sufficiently, resulting in a problem such as tearing of the coating film of the anti-slip layer. Conversely, when it exceeds the above-mentioned range, the curing time is relatively increased to increase the construction time. Occurs.

In addition, the water repellent agent used in the present invention is used to improve the water repellency of the coating film to improve the water film phenomenon covered with the water film on the non-slip coating film in rainy weather, and any one or more selected from silicon powder, silica particles, and metal oxides Mix and use 1 to 10 parts by weight.

In addition to the above composition of the present invention, additives commonly used in this field may be used in the present invention. These additives include pigments, crosslinking agents, curing accelerators, anti-settling agents, impact strength modifiers, stabilizers, age-protecting agents, antioxidants, ozonation inhibitors, light protection agents, and ultraviolet light. Stabilizers, ultraviolet absorbers, and the like, and can be suitably used within a known range.

Using the coating composition of the present invention as described above, a coating is applied to the surface of a car parking lot of a roof, concrete, steel frame of a building, a pedestrian, a road, a bicycle lane, a child protection area, a park area, a bus lane, and a sliding surface. The prevention layer can be applied.

Example 1

1 Preparation of anti-slip coating composition

20 parts by weight of 2-EHA, 30 parts by weight of MMA, 10 parts by weight of pulverite powder with a particle size of 08 mm, 10 parts by weight of steel slag powder with a particle size of 05 mm, 10 parts by weight of silica sand (standard yarn), 5 parts by weight of silica, 5 parts by weight of titanium dioxide Mixing to prepare a coating composition. A non-slip layer was formed by applying a coating composition obtained by mixing and reacting 7 parts by weight of BPO to the coating composition.

2 Physical property evaluation of anti-skid layer

The composition prepared according to the method of Example 1 was prepared according to KS F 2375 (Test method for slip resistance of road surface) to measure the slip resistance, and as a result, it was evaluated that the slip resistance (BPN) was 90 or higher, and the composition was also evaluated. After applying to the road surface, the drying time after construction was measured and dried within 15 minutes.

As described above, preferred embodiments of the present invention have been described in detail, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical spirit of the present invention. This is possible.

Claims (1)

2-ethylhexyl acrylate (2-EHA) 10-20 parts by weight, methyl methacrylate (MMA) 20-30 parts by weight, filler 20-30 parts by weight, curing agent 2-10 parts by weight, water repellent 1-10 parts by weight Consisting of the composition, the filler is a mixture of mackban rock powder: ceramic powder: silica sand in a weight ratio of 1: 1: 1, and the ceramic powder is cement, steel slag, glass bead, silica, calcium carbonate, magnesium carbonate , It is selected from at least one kind of kaolin, the particle size of 10 ~ 20 mesh is used, the pulverized stone powder and silica sand is used to crush the particle size of 02 ~ 08mm, the curing agent is a benzyl peroxide (BPO) as a curing agent After mixing, the coating composition is cured at a temperature of -15 ~ 30 ℃ for 30 ~ 50 minutes to form a cured layer, and the water repellent is used at least one of silicon powder, silica particles, and metal oxide to remove the water film phenomenon. That features The acrylic coating composition to a non-slip