KR20130004614A - Composition for safety guide line and safety guide line sheet using the same - Google Patents

Abstract

PURPOSE: A paint composition for displaying a safety guide line is provided to have excellent workability being quickly cured at low temperatures. CONSTITUTION: A paint composition for displaying a safety guide line comprises: a first liquid which comprises an unsaturated polyester resin or reactive acryl resin, a reactive monomer, hardener and a filler; and a second liquid which comprises the unsaturated polyester resin or reactive acryl resin, the reactive monomer, a pigment and a reaction catalyst. The unsaturated ester resin is a resin polymerization modified glycol, phthalic acid and methyl methacrylate and has a molecular weight of 1,000-3,000. The safety guide line is formed by mixing and spraying the first and second liquid and spraying beads thereon. [Reference numerals] (A1,A2,A3) Release paper; (B1,B2) Composition coating; (C1,C2) Non-woven fabric, nylon fabric, glass fiber mat metal panel; (DD) Composition coating, beads

Description

Coating composition for safety guide line marking and safety guide line sheet using same {Composition for safety guide line and safety guide line sheet using the same}

The present invention relates to a coating composition for a safety guide line display and a safety guide line sheet using the same, and more particularly, for a safety guide line display used in a guardrail, a barrier, a tunnel guide line, a road center separator, or a road separator. It relates to a coating composition and a safety guide wire sheet using the same.

The development of means of transport, in particular the development and dissemination of motor vehicles, has led to more, wider and more complex roads, so that more roads intersect and more information about the roads in the operation of cars There is also a growing need to be communicated to the driver.

As a means to convey information to the driver about the road, that is, the destination in the direction of travel, information about the area where the road is currently passing, information about road crossings and speed limits around the road Road signs with poles and signboards with information about the roads are commonly used.

In addition, the information of the destination about the speed limit and the direction of travel may be directly applied on the road surface and displayed in letters or figures. The information on the road surface is mainly coated with a road marking paint on the road surface. Is displayed.

In this way, the safety signs, various information displays, etc. on the road surface to enhance the visibility of the driver, but up to now, such marks are lacking in the road dividers, guard rails, barriers or road separators. In particular, the risk of accidents is high because there is no safety sign on the center separator or guard rail during night operation, but until now, it has been coated with general paint, so that the adhesiveness or retroreflective ability is inferior. In addition, there is a limit to the visibility of the driver and there is a problem in that the durability and adhesion of the seat also falls.

One object of the present invention is to provide a coating composition having excellent workability that is hardened at low temperature without being coated and flowed down to a road divider, guardrail, barrier or road separator.

Another object of the present invention is to maintain durability and adhesion for a long time even in the external environment due to rain, etc., excellent adhesion to reflectors such as beads and excellent workability as it does not flow down when spraying reflectors such as beads It is to provide a method of forming a safety guide line that can secure the driver's night visibility by forming an excellent coating film in a short time.

It is another object of the present invention to provide a safety guide wire sheet capable of increasing workability and efficiency in the field.

One aspect of the invention provides a liquid comprising a first liquid comprising an unsaturated polyester resin or a reactive acrylic resin, a reaction monomer, a curing agent and a filler; And

A second liquid comprising an unsaturated polyester resin or a reactive acrylic resin, a reactive monomer, a pigmented pigment or a photoluminescent pigment and a reaction catalyst, wherein the unsaturated ester resin is polymerized with glycol, phthalic acid and methyl methacrylate (MMA). The modified resin is related to a safety guideline coating composition having a molecular weight of 1,000 to 3,000.

Another aspect of the present invention relates to a safety guide line formed by mixing and spraying a first liquid and a second liquid of the safety guide line display coating composition and spraying beads thereon.

In another aspect, the present invention is coated with the composition alone, or coated on a non-woven fabric, nylon fabric, glass fiber fabric, rubber-like asphalt sheet, or a composite sheet in the form of impregnated non-woven fabric or glass fiber on the rubber asphalt sheet It relates to a safety guide line sheet formed.

The coating composition for safety induction line display according to the present invention has excellent workability that is hardened at low temperature without flowing down even when coated on a road separator, guardrail, barrier or road separator.

The safety guide wire formed by the present invention can maintain durability and adhesiveness for a long time even by the external environment, and also has excellent reflection function to ensure night visibility.

The safety guide wire sheet according to the present invention is convenient in construction and can shorten the construction period.

1 is a specific illustration of the safety guide wire sheet produced by the present invention.

Hereinafter, the present invention will be described in detail.

The coating composition for forming a safety guide wire according to the present invention comprises an unsaturated polyester resin or a reactive acrylic resin, a reaction monomer, a curing agent and a filler as a first liquid, and an unsaturated polyester resin or a reactive acrylic resin and a reactive monomer as a second liquid. , A coloring pigment or a phosphorescent pigment and a reaction catalyst, and mixing and spraying the first liquid and the second liquid to form a coating layer.

The paint composition may be used by mixing at the outlet of the spray gun, but is not limited thereto.

The first liquid and the second liquid may be mixed and sprayed in a volume ratio of 1: 0.8 to 1.2, preferably 1: 1.

The first liquid may include 150 to 200 parts by weight of reaction monomer, 5 to 15 parts by weight of curing agent and 150 to 250 parts by weight of filler based on 100 parts by weight of the unsaturated polyester resin or reactive acrylic resin.

The second liquid may include 150 to 200 parts by weight of reaction monomer, 5 to 20 parts by weight of reactive catalyst, and 150 to 200 parts by weight of photoluminescent pigment or coloring pigment based on 100 parts by weight of unsaturated polyester resin or reactive acrylic resin.

The coating composition may further include 10 to 40 parts by weight of organic isocyanate based on 100 parts by weight of unsaturated polyester resin.

Hereinafter, each component of the paint composition will be described in detail.

The unsaturated ester resin used in the present invention is a binder resin, and after being applied and cured to concrete, asphalt, marble, steel, etc., adheres closely to these surfaces to remain for a long time, so that the beads and the like remain firmly on the road.

In addition, it functions as an adhesive with improved flexibility, surface adhesion, slip resistance, chemical resistance, and crack resistance than conventional fusion, solvent type, and epoxy type paints.

The unsaturated ester resin can be prepared by polymerized modification of glycol, phthalic acid and methyl methacrylate (MMA). Preferably, glycols having two or more functional groups (Glycol), phthalic acid (Phthalic acid) having two functional groups, and methyl metal acrylate (Methyl metacrylate, MMA) may be obtained by polymerization.

The MMA is not environmentally harmful, and in the case of SM (Stylene Monomer), which is used for general purposes, the shrinkage of the coating film is left and right contraction, whereas the MMA application shows up and down shrinkage when applied to MMA. Excellent crack resistance.

The molecular weight of the unsaturated ester resin is 1,000 to 5,000, preferably 1,000 to 3,000. If the molecular weight is less than 1,000, the hardness is high may cause cracking, if the 3,000 exceeds the viscosity is difficult to control the workability is high.

The composition of the present invention may comprise a reactive acrylic resin. The composition may use one or more of the above unsaturated ester resins and reactive acrylic resins. The reactive acrylic resin may be poly (methyl methacrylate) (PMMA). The composition may be cured by a radical initiation reaction by mixing a double bond of a reactive monomer having a -OH group such as MMA, 2-HEMA, HPMA, including a reactive acrylic resin, and a curing agent (Peroxide). The composition forms a radical initiation reaction with an unsaturated polyester resin, a reaction monomer, a curing agent, and a reactive acrylic resin. Coexistence of these bonds solves the curable shrinkage problems that may occur during the curing of unsaturated polyester resins, improves reactivity, and reduces the color change caused by ultraviolet rays of Co-octate to maintain beautiful colors and at the same time provide a strong and flexible coating. You can get it.

When the reactive acrylic resin is used with the unsaturated polyester resin, 10 to 40 parts by weight may be used based on 100 parts by weight of the unsaturated ester resin. Outside the range there is a problem that the viscosity rise and the reaction time is shortened.

The coating composition according to the present invention may further include 10 to 40 parts by weight of organic isocyanate based on 100 parts by weight of the unsaturated polyester resin in at least one of the first liquid and the second liquid.

The organic isocyanate group is methylene diisocyanate, phenylene diisocyanate, chlorophenylene diisocyanate, α, α'-xylene diisocyanate, toluene diisocyanate, 1,5-naphthalene diisocyanate, isophorone diisocyanate, methylene bis (cyclohexyl Isocyanate) or cyclohexylene diisocyanate (1,2-; 1,3-; or 1,4-) may be used.

The composition must satisfy the high coating strength, adhesion and flexibility required for grafting on concrete or metal surfaces. However, conventional paints use a large amount of various fillers (silica, glass grains, etc.) together with epoxy resins or thermoplastic resins, which inevitably degrades the physical properties of the coating film. There was this.

The composition may be reacted by a urethane reaction of a reactive monomer having a -OH group, such as MMA, 2-HEMA, HPMA, and a curing agent (Peroxide), including an organic isocyanate group. In the composition, an unsaturated polyester resin, a reaction monomer, a curing agent, and an organic isocyanate are polymerized so that a urethane bond coexists with the unsaturated ester bond. Due to the coexistence of the urethane bonds can be obtained a strong yet flexible coating by solving the curable shrinkage problem that may occur during curing of the unsaturated polyester resin.

In the case of the spray type, the organic isocyanate may be added to at least one of the first liquid and the second liquid, and preferably, the organic isocyanate is added to the first liquid.

The said organic isocyanate group can use 10-40 weight part with respect to 100 weight part of said unsaturated polyester resins in both a spray type and a paste type. Outside the above range, there is a problem that the coating state becomes stronger and the pot life is shortened.

The composition includes a reaction monomer that participates in a polymer polymerization reaction during the curing reaction and also undergoes a urethane reaction with an isocyanate. The reactive monomer may function to adjust the workability of the coating composition and to adjust the hardness of the product.

As the reaction monomer, at least one selected from methyl methacrylate (MMA), 2-hydroxyethyl methacrylate and BAM (butyl acrylate monomer) may be used.

The reactive monomer may be used 65 to 70 parts by weight based on 100 parts by weight of the unsaturated polyester resin in the first liquid, 70 to 150 parts by weight in the second liquid. If it is out of the range there is a problem that complete curing is not made.

The curing agent used in the present invention may be granular benzoyl peroxide (hereinafter BPO) or CABPO. The CABPO is in the form of a liquid paste in which the BPO is dispersed in dibutyl phthalate (DBP). The DBP also serves to make the coating film by acting as a plastic film.

It is preferable that the BPO contained in the CABPO is 30 to 80% by weight. The BPO may be in the form of granules (granule) formed in a particle size of 0.01 ~ 0.3mm size. If the particle size of the BPO is less than 0.01mm, it does not flow in the line of the coating equipment, but clogged by the surrounding moisture, if it exceeds 0.3mm, there is a problem that the solubility is significantly reduced when mixing with the main body.

The curing agent may be used 5 to 15 parts by weight based on 100 parts by weight of the unsaturated polyester resin. Outside the above range, there is a problem that partial curing or curing is shortened.

The coating composition includes calcium carbonate as a filler and serves to impart strength of the coating film to the coating composition and to prevent the film from flowing down. The particle size of the calcium carbonate is preferably 10㎛ ~ 40㎛.

The present invention includes a reaction catalyst in the second liquid. As the reaction catalyst, DMA (dimethyl aniline) and Co-octate (cobalt octate) may be used. When adding an organic isocyanate further, it is preferable to use DMA and Co-octate simultaneously, and when adding a reactive acrylic resin, it is preferable to use DMA alone.

If the reactive catalyst is less than 5 parts by weight, the curing time is too late, so the working time is long and the surface is completely hardened, which leads to the problem of contamination. If it is more than 20 parts by weight, the gelling phenomenon occurs quickly during product storage. As heat progresses, self-heating occurs relatively rapidly due to rapid hardening, which may cause shrinkage and color change.

The composition may comprise a pigment that imparts a visual effect by imparting color to the paint. As the pigment, one or more of colored pigments and photoluminescent pigments may be used. The coloring pigment may be used to express the coating composition in a desired color, and to select and use a suitable pigment according to a predetermined color, and such coloring pigment may be understood to be well known to those skilled in the art to purchase and use commercially. It is. The coloring pigment may be used from 150 to 200 parts by weight based on 100 parts by weight of the unsaturated polyester resin.

The photoluminescent pigment is zinc sulfide: copper doped (ZnS: Cu), aluminum oxide, aluminum oxide, calcium oxide, strontium oxide, europium oxide. Boron oxide, alkaline earth aluminate, alkaline earth silicate may be used, and preferably ZnS: Cu. The phosphorescent pigment may be used from 20 to 50 parts by weight based on 100 parts by weight of the beads sprayed on the coating film.

The composition may further comprise one or more of an antisettling agent, a dispersant, an antivolatile agent as an additive.

The safety induction line of the present invention is formed by mixing the first liquid and the second liquid of the composition and spraying beads thereon.

The coating composition for the safety guide line may be coated on the guardrail, the barrier, tunnel guide line, road divider, or road separator.

The beads may be glass beads or photoluminescent reflecting beads.

The glass ball serves to improve the visibility of the driver at night to enhance the safety, the particle size is preferably 0.03mm to 0.8mm.

The content of the glass grains is not particularly limited and is sprayed to have sufficient reflectivity.

The photoluminescent reflecting beads may have a dual structure in which a binder is coated on the outer surface of the core bead, and microbeads and photoluminescent pigments are inserted into the binder and fixed.

Hereinafter, the method of manufacturing the photoluminescent reflecting beads will be described in detail.

The photoluminescent reflecting beads are mixed by placing a core bead and a binder in a container; It can be formed including the step of mixing and heating the fine bead and the phosphorescent pigment in the container.

The step may include 3 to 10 parts by weight of the binder, 3 to 10 parts by weight of the fine beads and 3 to 10 parts by weight of the photoluminescent pigment based on 100 parts by weight of the core beads.

The binder may comprise an unsaturated ester resin or an acrylic resin, a reactive monomer, a curing agent and a reaction catalyst. The binder may include 25 to 350 parts by weight of a reactive monomer, 10 to 30 parts by weight of a curing agent, and 0.1 to 3 parts by weight of a reaction catalyst, in 100 parts by weight of an unsaturated ester resin or an acrylic resin.

The binder may refer to the contents described in the method of forming the safety guide line described above. However, the unsaturated ester resin for producing photoluminescent reflective beads has a molecular weight of 3,000 to 10,000, preferably 6,000 to 7,000. When the molecular weight is less than 3,000, the hardness is high, cracking may occur, and when it exceeds 10,000, it is difficult to control workability due to high viscosity.

The core bead may be glass, transparent plastics or the like. The core bead has a refractive index of 1.5 to 1.9. It is preferable that it is spherical particle whose specific gravity is 2.4 or more. The core bead may be elliptical but preferably have no acute protrusions on the particles. In addition, it is preferable that the core bead is not opaque or foreign matter is mixed.

The particle size of the core bead is 600 ~ 1200㎛, preferably 600 ~ 1000㎛.

The fine beads may be used, such as glass, transparent plastics. The fine bead is preferably made of BaO-ZnO-TiO ₂ and GLASS, the refractive index may be used in the range of 1.9 ~ 2.2. The size of the fine beads is 20 ~ 100㎛, preferably 45 ~ 90㎛.

The safety guide line is formed including a coating layer and beads applied thereon.

The safety guide line is formed on a guardrail, a barrier wall, a tunnel guide line, a road divider or a road separator, and the coating layer includes a first liquid including an unsaturated polyester resin or a reactive acrylic resin, a reaction monomer, a curing agent, and a filler. It is formed by mixing and spraying the unsaturated polyester resin or the 2nd liquid containing a reactive acrylic resin, a reaction monomer, a coloring pigment, or a photoluminescent pigment, and a reaction catalyst, The said beads are a glass ball and a photoluminescent reflection bead.

In another aspect the present invention relates to a safety guide line sheet. The safety guide wire sheet is coated on the composition alone, or on a nonwoven fabric, nylon fabric, glass fiber fabric, rubber-like asphalt sheet, metal panel, or a composite sheet of non-woven fabric or glass fiber impregnated on the rubber asphalt sheet Formed by coating. Specific examples of such safety guide line sheets are shown in FIGS. 1A-1C.

The safety guide wire sheet of the present invention can be produced using a two-part spray or panel molding method as necessary. For example, the method using a high pressure spray can be uniformly coated by spraying the safety induction wire composition of the present invention with a curing time of less than 10 seconds on the sheet material with a high pressure sprayer.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the following Examples are intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example  One

1 Liquid Preparation :

 As binder resin As binder resin, methyl metal acrylate (MMA), 2-hydroxyethyl methacrylate (2-HEMA), BAM (Butyl acrylate monomer) modified unsaturated polyester ( SRS-3000 own product) Disperses 1 kg of additives (BYK-161, BYK) in 30 kg of reactive monomer (MMA, BAM LG MMA) in 10 kg of reactive acrylic resin (PMMA, LG MMA) in 20 kg, and is an inorganic filler. 40 kg of calcium carbonate (Dolomite RP-2000, Lexem) was added and completely dispersed.

5 kg of BPO (ENOX BPO-50-DCHP, Jiangsu Qiangsheng Chem) curing agent was mixed in one solution prepared by the above method and stirred uniformly.

2 Liquid Preparation :

As a binder resin, methyl metal acrylate (MMA), 2-hydroxyethyl methacrylate (2-HEMA), butyl acrylate monomer (BAM) modified unsaturated polyester (SRS-3000 Product) Dissolve 30 kg of reaction monomer (MMA, BAM LG MMA) in 10 kg of reactive acrylic resin (PMMA, LG MMA) in 20 kg, and disperse 30 kg of coloring pigment (TiO2, Millennium) in it, and then add additive (BYK-161). , BYK) and 1 kg of reactive catalyst DMA (N, N-Dimethylaniline, AKZO NOBEL), and 5 kg of calcium carbonate (Dolomite RP-2000, Lexem), an inorganic filler, were added and dispersed in order to prepare 2 liquids.

A and B liquid prepared in the above method was put into the spray tank of the equipment, and after adjusting the fluidity of the product to the proper discharge pressure by using the heating device of the equipment, it was sprayed on the side of the center separator.

Subsequently, 11 kg of glass beads (Glass Beads No. 2 or high refractive beads) were sprayed onto the coating layer formed by spraying to form a safety guide line.

Example  2

Instead of spraying the glass balls in Example 1 to form a safety induction line by spraying 11kg of photoluminescent reflective beads prepared in Table 1 composition.

The core glass beads (size of about 500-800 µm, used for SIZE selection in the spraying beads) and the following binder were mixed in a mixing container in a ratio of 100: 5 by weight and the container was rotated and mixed. Subsequently, 5 parts by weight of fine glass beads (Union, 20-50 μm) and 5 parts by weight of photoluminescent pigment (Hyundai Chemical GSS) were added to a mixing vessel and heated at 80-100 ° C. for about 1 hour. Reflective beads were prepared.

[Table 1]

The hiding rate, impact resistance, adhesion, and the like of the safety induction wire formed by Example 1 were tested and shown in Table 2 below.

[Table 2]

Claims (7)

A first liquid containing an unsaturated polyester resin or a reactive acrylic resin, a reaction monomer, a curing agent and a filler; And
A second liquid comprising an unsaturated polyester resin or a reactive acrylic resin, a reaction monomer, a pigment and a reaction catalyst, wherein the unsaturated ester resin is a polymer modified by glycol, phthalic acid and methyl methacrylate (MMA) As the molecular weight is 1,000 to 3,000, the coating composition for safety induction line display. The method according to claim 1, wherein the first liquid is based on 100 parts by weight of an unsaturated polyester resin or a reactive acrylic resin,
150 to 200 parts by weight of reaction monomer
5 to 15 parts by weight of a curing agent and
150 to 250 parts by weight of the filler; And
The second liquid is based on 100 parts by weight of an unsaturated polyester resin or a reactive acrylic resin
150 to 200 parts by weight of reaction monomer
5 to 20 parts by weight of a reactive catalyst and
Pigment 150 to 200 parts by weight,
5 to 20 parts by weight of filler
Safety guide wire coating material composition comprising a. A safety guide line formed by mixing and spraying the first liquid and the second liquid of claim 1 or 2, and spraying beads thereon. 4. The safety guide line according to claim 3, wherein the beads are glass beads or photoluminescent reflecting beads. 4. The safety guide line of claim 3, wherein the photoluminescent reflective bead has a binder coated on an outer surface of the core bead, and a microbead and a photoluminescent pigment are inserted into the binder to be fixed. A safety guide line formed by including a coating layer and beads applied thereon, the safety guide line is formed on a guardrail, a barrier, a tunnel guide line, a road divider or a road separator,
The coating layer is a mixture of a first liquid containing an unsaturated polyester resin or a reactive acrylic resin, a reaction monomer, a curing agent and a filler and an unsaturated polyester resin, or a second liquid containing a reactive acrylic resin, a reaction monomer, a pigment and a reaction catalyst. Formed by spraying,
The bead is safety glass, characterized in that the glass beads, photoluminescent reflecting beads. The composition according to claim 1 or 2 alone or coated on a non-woven fabric, nylon fabric, glass fiber fabric, rubber-like asphalt sheet, metal panel or composite sheet of impregnated non-woven fabric or glass fiber on the rubber asphalt sheet Safety guide wire sheet formed by.

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