KR100848812B1 - Embossing paint composition of epoxy type without solvent and the constructing method thereof - Google Patents

Abstract

An epoxy-based solvent-free embossing paint composition is provided to realize anti-slip and noise-protecting functions on floors, particularly in a parking lot, plant and rooms for children, the sick and the aged. A three-part epoxy-based solvent-free embossing paint composition for floors having an anti-slip function comprises: (A) a main part comprising 20-40 wt% of a bisphenol-A epoxy resin, 1-8 wt% of a pigment, 50-70 wt% of an extender pigment, 0.1-1 wt% of a silicone-based defoaming agent and 0.5-1 wt% of a wet dispersant based on an unsaturated polycarboxylic acid; (B) a curing agent part comprising 50-55 wt% of an amine-based curing agent, 10-20 wt% of a curing accelerator, and 30-40 wt% of a viscosity modifier; and (C) an embossed pattern forming agent comprising 60-70 wt% of talc and 30-40 wt% of bentone(quaternary ammonium bentonite complex).

Description

Epoxy-based embossing solvent-free coating composition and construction method using the same {EMBOSSING PAINT COMPOSITION OF EPOXY TYPE WITHOUT SOLVENT AND THE CONSTRUCTING METHOD THEREOF}

The present invention is an epoxy-based embossing that can be installed in flooring materials such as underground parking lots that need to prevent slipping and noise prevention of floors, and flooring materials in factories such as factories that are frequently expected to wear down the floor due to frequent traffic of vehicles, and offices where infants and the elderly pass frequently. It relates to a solvent-free coating composition and a construction method using the same.

Solvent-free epoxy paint is a solvent-free epoxy room temperature hardening floor coating material mainly containing epoxy resins and polyamines.

The solvent-free epoxy paint forms a thick epoxy coating film of 1 to 3 mm and easily conceals the rough surface state of the base, and has an excellent leveling effect, and can produce a beautiful high-quality indoor atmosphere. In addition, since the repeated shocks are not transmitted to the lower extremities, problems such as peeling due to lower extremities do not occur. In addition, as a whole, a seamless bottom is formed, so it is easy to remove and manage dust and foreign matters and to clean easily.

In addition, solvent-free epoxy paint has excellent abrasion resistance and impact resistance, and is excellent in chemical resistance, water resistance, solvent resistance, adhesion, durability, dust proofing, waterproofing, self-leveling, etc. There is an advantage.

Existing epoxy-based solventless flooring material is excellent in wear resistance and impact resistance, is a self-smoothing flooring material is harder after hardening, which is stronger than concrete and forms a smooth coating film. As a result, it does not sink or crack under severe mechanical abrasion and is used for parking lot floor, factory floor, warehouse floor, office floor, laboratory floor, etc., which require chemical resistance and mechanical strength.

Although it has been used as a representative floor paints by the characteristics of the above-described epoxy solvent-free paints, the biggest disadvantage is that it has a low surface frictional force and has a risk of slipping because it features a smooth and smooth surface.

In particular, the parking lot where the vehicle operates, or the floor of the factory where the forklift is operated, should be easily stopped at corners where slipping is noticeable after the epoxy solvent is applied. In the related art, the cost is increased by additionally constructing a steel structure, a high hardness plastic, a rubber material structure, an epoxy-based solvent mixed with aggregate, and the like which are provided with an embossing anti-slip function.

Accordingly, the present invention is to provide an embossed solvent-free coating composition that can improve the slipperiness of the floor using the embossing pattern forming agent to form embossing on the flooring material as well as to secure various physical properties unique to the solvent-free epoxy resin. It is done.

It is another object of the present invention to provide a construction method for applying the composition to the flooring.

In order to achieve the above object, the present invention

To be non-solvent floor paint and have a slip function,

20 to 40% by weight of bisphenol-A epoxy resin, 1 to 8% by weight of colored pigment used in epoxy solvent-free paint, 50 to 70% by weight of extender pigment, and 0.1 to 1% by weight of silicone antifoaming agent And (A) comprising 0.5 to 1% by weight of unsaturated polycarboxylic acid-based wetting and dispersing agent;

A curing agent (B) comprising 50 to 55 wt% of an amine curing agent, 10 to 20 wt% of a curing accelerator, and 30 to 40 wt% of a viscosity modifier, based on the total weight of the curing agent (B); And

Embossed pattern former (C) comprising talc 60 to 70% by weight, and benton (Bentone) 30 to 40% by weight, based on the total weight of the embossed pattern former (C);

It provides a three-component epoxy-based embossing solvent-free coating composition comprising a.

In addition, the present invention

When the flooring is installed to be a non-solvent flooring paint and have a non-slip function,

Applying an epoxy primer to treat the undercoat; And

20-40% by weight of bisphenol-A epoxy resin, 1-8% by weight of colored pigment used in epoxy-based solvent-free paint, 50-70% by weight of sieving pigment, 0.1-based antifoam 0.1% Main body (A) containing -1 weight% and 0.5-1 weight% of unsaturated polycarboxylic acid type wet dispersion agent; A curing agent (B) comprising 50 to 55 wt% of an amine curing agent, 10 to 20 wt% of a curing accelerator, and 30 to 40 wt% of a viscosity modifier, based on the total weight of the curing agent (B); And an embossed pattern forming agent (C) comprising 60 to 70% by weight of talc and 30 to 40% by weight of Benton, based on the total weight of the embossed pattern forming agent (C). Applying the composition and then curing

Provide the construction method of flooring material.

The composition according to the present invention has a floor anti-slip and noise prevention effect by installing in flooring materials such as underground parking lots, flooring materials such as factories that are frequently expected to wear the floor due to frequent traffic of vehicles, and offices where infants and the elderly are frequently passed. .

Hereinafter, the present invention will be described in more detail.

The composition according to the present invention is an anti-slip embossing solvent-free epoxy paint characterized by a three-component type consisting of an epoxy resin, a main body consisting of a pigment, an additive, an extender pigment, an amine curing agent, and a viscosity modifier such as talc exhibiting the effect of embossing. .

Hereinafter, each composition will be described in more detail.

(A) subject

Subjects of the compositions according to the invention include bisphenol-A epoxy resins, colored pigments, extender pigments, antifoams, and wet dispersants.

First, as the bisphenol-A epoxy resin, bisphenol-A epoxy resin obtained by reacting epichlorohydrin and bisphenol A is used.

When the resin is formed, the resin has excellent mechanical properties such as bending strength and hardness of the coating film, and has excellent flammability and chemical resistance. In addition, there is no generation of volatiles and shrinkage of the volume at the time of curing, and at the time of curing, it has a large adhesion to the surface of the subject.

In the present invention, the bisphenol-A epoxy resin is used at 20 to 40% by weight based on the total weight of the main (A). If the content is less than the above range, the formation of the coating film is not performed properly. On the contrary, if the content exceeds the above range, the content of the other composition is relatively small, and thus the desired effect cannot be sufficiently obtained.

The coloring pigment which is the other component which comprises a subject can be any pigment normally used for an epoxy type solvent-free paint, and is not specifically limited in this invention.

Such colored pigments may be used as white or colored pigments. White pigments may be used regardless of the type of titanium dioxide of the rutile type, and the colored pigments may contain inorganic pigments that do not contain divalent or higher metal ions and are not reactive. It is preferable to use. In addition, the use of an inorganic colored pigment of the iron oxide type is most preferred in terms of storage stability.

The colored pigment is used in an amount of 1 to 8% by weight based on the total weight of the main ingredient (A). If the content is less than the above range, the appropriate color cannot be exhibited. On the contrary, even if the content exceeds the above range, there is no increase in effect, it is uneconomical, and some precipitation may occur, so it is appropriately used within the above range.

In addition, the extender pigment used in the present invention is an achromatic pigment used to increase the mechanical properties of the coating film. As the extender pigment, any pigment can be used as long as it is usually used for an epoxy-based solvent-free paint, and is not particularly limited in the present invention.

For example, calcium carbonate, clay, talc, mica, silica, and the like may be used as the extender pigment, and it is preferable to use a mixture of calcium carbonate and talc containing no divalent or higher metal ionic impurities and dolomite component to store the paint stability. Most preferred in terms of properties and physical properties.

The extender pigment is used in an amount of 50 to 70% by weight based on the total weight of the main ingredient (A). If the content is less than the above range, the appropriate color cannot be exhibited. On the contrary, even if the content exceeds the above range, there is no increase in effect, it is uneconomical, and some precipitation may occur, so it is appropriately used within the above range.

In the composition of the present invention, a silicone antifoaming agent is used.

Bubbles in the composition occur when the process of mixing to obtain the composition occurs. The viscosity of the composition is reduced by such bubbles, which causes a problem in that the coating function is lowered when the coating film is formed on the subject, and tints are generated on the surface of the coating film by the bubbles, thereby deteriorating physical properties.

Antifoams are generated to suppress bubbles, and the resulting bubbles are forced out of the composition. It is preferable to use the antifoaming agent in an appropriate ratio in consideration of the physical properties of the coating film rather than controlling the method of stirring less bubbles without adding the antifoaming agent.

In the present invention, a silicone antifoaming agent is used as the antifoaming agent. Such silicone antifoaming agents have excellent emulsification status, are easy to handle, and exhibit excellent foaming and defoaming power even in a small amount.

The silicone antifoaming agent can be manufactured and used directly, or can be used by purchasing a commercially available product, as an example Use products such as CELANT-DF18 ^® , SYNTHRO ^®, etc.

The content is also used in an amount of 0.1 to 1% by weight based on the total weight of the subject (A). If the content is less than the above range, it can not exert the effect as the antifoaming agent as described above, and even if it exceeds the above range, there is no further increase in effect, so it is uneconomical, so it is suitably used within the above range.

In addition, the composition of the present invention uses a wet dispersant to increase the dispersibility.

Dispersion means that the particles are present uniformly in the composition without agglomeration. If the dispersion is not performed properly, problems such as flocculation, color flotation or color spotting and color separation occur.

The wet dispersant decreases the interfacial tension between the surface of the pigment and the resin solution to spread the wet, and is adsorbed on the surface of the pigment to stabilize the spacing between the pigment due to electrostatic repulsion or steric hindrance effect. To keep the pigments from reaggregating. If such a wet dispersant does not play its role, not only the above-described problems but also the pigment distribution non-uniformity of the coating film occurs, not only the difficulty of the same color reproducibility but also the non-uniformity of gloss occurs.

Thus, the present invention uses an unsaturated polycarboxylic acid-based material as the wet dispersant. The unsaturated polycarboxylic acid-based wet dispersant has a polar group of COOH and is well adsorbed to the polar material. It also simultaneously has hydrophobicity which is well adsorbed on nonpolar materials due to unsaturated rings. The unsaturated polycarboxylic acid-based wet dispersant may be prepared and used directly, or a commercially available product may be used. BYK ^® , SYNTHRO ^® ,, PROTESOL ^®, etc. are used.

The content is also used in the range of 0.5 to 1% by weight based on the total weight of the subject (A). If the content is less than the above range, the effect as a wet dispersant as described above cannot be exerted, and even if it exceeds the above range, there is no further increase in effect and it is uneconomical, so it is suitably used within the above range.

(B) curing agent

The composition according to the invention uses a curing agent, in which an amine curing agent, a curing accelerator and a viscosity modifier are used as the curing system.

One of the advantages of the epoxy resin is that it can be easily made into a thermosetting material at room temperature, and this phenomenon (curing) is called curing of the epoxy resin. In order to cure this, a 'curing agent' is essentially included. Depending on the type and dosage of the curing agent, the pot life, curing time, and physical properties after curing are affected. Therefore, an appropriate compounding ratio should be selected according to the applied material.

In the present invention, an amine curing agent is used as the curing agent. The amine-based curing agent does not need to be heated separately for curing with room temperature or medium temperature curing agent. Amine based curing agents that can be used are all amine based curing agents known in the art, for example aliphatic polyamines such as diethylenetriamine, triethylenetetramine, adducts of BF3 and amino (monoethylamine), Aromatic polyamines, such as metaphenylenediamine, diaminodiphenylmethane, and diaminodiphenyl sulfone, are possible.

The content is also used at 35 to 55% by weight in the total weight of the curing agent (B). If the content is less than the above range, the effect as a curing agent as described above cannot be exhibited. If the content exceeds the above range, the coating film becomes hard due to excessive hardening, so it is suitably used within the above range.

A curing accelerator is used to promote the curing rate of the curing agent. The content of such a curing accelerator is used in 10 to 20% by weight in the total weight of the curing agent (B). If the content is less than the above range, the effect of using the curing accelerator can not be secured, there may be no significant difference even if used beyond the above range, and in some cases, the problem of curing too quickly before application There is.

The composition of the present invention comprising the composition described above is applied to the floor or the like, where each component is uniformly mixed and a viscosity modifier is used to facilitate the application. Such a viscosity modifier is not particularly limited in the present invention, and any known ones may be used.

The viscosity modifier is used in an amount of 30 to 40% by weight within the total weight of the curing agent (B), and is suitably used within the above range in consideration of mixing and coating.

(C) Embossing  pattern Former

Particularly, in the present invention, in order to form embossing on the flooring material, 60 to 70% by weight of talc and 30 to 40% by weight of Benton are used to be 100% by weight.

The particle size of the talc is 7 ± 1㎛, Benton (Quaternary Ammonium Bentonite Complex) is preferably 1 ㎛ or less. If the particle size of talc and benton is out of the above range, it has an inadequate effect on workability and surface embossing pattern formation.

In particular, the influence of talc on the formation of embossed patterns determines the fineness of the protruding portion, that is, as the amount of talc increases, more embossed patterns can be formed, and the number of bends of the embossed patterns becomes smaller when less. Benton's influence also affects the height of the embossed pattern. If the amount of benton is increased, the height of the embossed pattern is increased, and when it is small, the effect is decreased.

The formation of the embossed pattern can be controlled by adjusting the weight percentages of talc and benton, but control within the weight% of the phase is preferable in terms of workability, and is also preferable in forming an appropriate embossed pattern.

In the present invention, the above-mentioned theme: hardener: embossing pattern former is mixed in a weight ratio of 1: 1: 1 to 5: 1: 3.

According to another feature of the present invention, the size or texture of the embossed pattern can be selectively constructed by adjusting the addition or decrease of the embossed pattern former at the basic mixing ratio in consideration of the construction site or floor matters, customer requirements.

In addition to the above compositions, known additives known in the art may be used. Such additives may include coupling agents, leveling agents, pigment dispersants, multipurpose additives, waterproofing agents, oil repellents, water repellents, stabilizers, thickeners, preservatives, rust removers, antistatic agents, and the like. The content and selection of the additives may be appropriately selected and modified by those skilled in the art, and may be preferably changed according to the type of subject to be applied.

The composition as described above is prepared in a three-part solution comprising a main body, a curing agent and an embossed pattern former, respectively.

First, the main material is prepared by mixing a bisphenol-A epoxy resin, a coloring pigment, a sieving pigment, an antifoaming agent, and a wet dispersant,

A curing agent is prepared by mixing an amine curing agent, a curing accelerator, and a viscosity modifier in a separate mixer.

Immediately before construction, talc and benton, which are embossed pattern formers, are added to the main material and the curing agent.

The epoxy-embossed solvent-free coating composition thus prepared is applied to various flooring materials. In particular, the composition is anti-slip, waterproof, high compressive strength, acid resistance, base resistance, solvent resistance is excellent in the bottom and wear resistance impact resistance of chemical factories, food factories, laboratories, etc. requiring anti-slip It can be applied to the floor of a factory or warehouse handling heavy loads, freezers and cold storages, and heavy loads. It can also be applied to machine rooms, electrical rooms, underground parking lots, nuclear power plants, electronics, chemicals, pharmaceutical factories, meat processing plants, cold storage floors, and other floors in severe abrasion environments or where impact and vibration resistance are required.

The composition according to the invention when the flooring,

Applying an epoxy primer to treat the undercoat;

20-40% by weight of bisphenol-A epoxy resin, 1-8% by weight of colored pigment used in epoxy-based solvent-free paint, 50-70% by weight of sieving pigment, 0.1-based antifoam 0.1% 50% to 55% by weight of the amine-based curing agent and 10 to 20% to the total weight of the main component (A) and the curing agent (B), each containing 1 to 1% by weight and 0.5 to 1% by weight of an unsaturated polycarboxylic acid-based wet dispersion agent. 60 to 70 wt% of talc, and 30 to 40 wt% of Benton, based on the total weight of the curing agent (B) and the embossed pattern forming agent (C) by weight and 30 to 40 wt% of the viscosity modifier. After applying the three-component epoxy-based embossing solvent-free coating composition comprising an embossing pattern forming agent (C) comprising a curing step.

Specifically, after the base treatment is completed on the bottom surface, the main primer and the curing agent of the epoxy primer are sufficiently mixed at a predetermined mixing ratio and coated once with a thickness of 50 μm so as to be sufficiently absorbed on the surface of the substrate with a roller or a brush.

At this time, up to 30% of the amount of paint is mixed with epoxy thinner to be sufficiently absorbed on the surface of the base. In addition, in the case of one coating, the part with high absorption of the surface of paint (where it is reduced to the initial base color) is additionally coated with a coat.

Next, after painting the undercoat, use a special tool (roller, etc.) to paint.

At this time, mix with a weight ratio of the subject: hardener: embossing powder = 3.5: 1: 1.5 (weight ratio), and use well mixed for 3 to 4 minutes with an electric stirrer according to the ratio indicated before use.

In this construction, the main body and the curing agent are stirred sufficiently so that there is no mixed material with an electric stirrer accurately at a specified ratio, and then embossed powder is added, and when it is not sufficiently mixed, the state is uncured.

In order to obtain the effect of embossing, the composition according to the present invention is preferably coated with a special tool (roller, etc.), and when the coating thickness is 3 mm or more, the coating is divided in two times. For example, the first coating 0.5 to 0.8 mm thickness scraping (front putty), the second coating is the remaining coating.

Since the composition according to the present invention is a solvent-free type, a diluent should not be used. If thinner is mixed, curing is delayed and color stains, hardness defects, gloss reduction, and the like are generated.

If the temperature is lower than the holding temperature of 5 ℃ or higher or the humidity is higher than 80% of the atmospheric humidity, it is recommended to avoid painting, which may take a long time to harden or reduce the coating performance. When painting in rainy weather or when the wind is strong, it may cause paint defects such as staining or slumping. Therefore, it is preferable to stop construction immediately if it rains during construction.

The flooring material obtained through such a construction process has improved talc and benton, which are embossed pattern forming agents, on the surface thereof, thereby greatly improving slipperiness.

Hereinafter, preferred examples are provided to aid in understanding the present invention. However, the following examples are merely provided to more easily understand the present invention, and the contents of the present invention are not limited by the examples. In this case, the% described in the Examples means weight% unless otherwise specified.

( Example  1 and Comparative example  One)

In Table 1, the composition ratio of [Subject]: [Hardening Agent]: [Embossing Pattern Control Agent] was 5: 1: 1, and then cured after coating on a substrate to prepare an epoxy-based embossing solvent-free test specimen. An epoxy solvent-free test specimen was prepared with a mixing ratio of [Topic]: [Hardener] to 5: 1.

Content (parts by weight) Example 1 Comparative Example 1 Remarks subject Epoxy resin 25 25 (Kukdo Chemical YD-115CA) Pigment 5 5 Huntsman TR81, Uksung Chemical GREEN2030, Korea Carbon HI BLACK 50L Antifoam 0.5 0.5 BYK 066N Wet Dispersant 0.7 0.7 BYP P-104 Sieving pigment 68.8 68.8 P-coal, Barium Sulfate, TALC-325 Hardener Amine Curing Agent 50 50 LM 177, D-230 Curing accelerator 15 15 Kukdo Chemical K-54 Viscosity modifier 35 35 Benzyl alcohol, nonilpe Embossing Pattern Adjuster Talc 65 - KOCH KCM-6100 Benton 35 - SUD-CHEMIE company VZ

Experimental Example 1

The physical properties of the specimens prepared in Example 1 and Comparative Example 1 were measured, and the results obtained are shown in Table 2 below.

division Example 1 Comparative Example 1 Remarks The tensile strength 160 kg / cm ² 165 kg / cm ² ASTM C 307 Compressive strength 580kg / cm ² 570kg / cm ² ASTM C 579 Flexural strength 250 kg / cm ² 250 kg / cm ² ASTM C 580 Wear resistance 0.1g 0.1g ASTM D 4060 Hardness 87 87 ASTM D 2240 Housework time 1 hour 30 minutes 2 KS M 6030: 2004 Curing and Drying Time 6 hours 7 hours KS M 5000: 2003 Chemical resistance clear clear KS M 5000: Deposition (168hrs)

As can be seen through Table 2, it is possible to manufacture the epoxy-based embossed solvent-free paint having a non-slip function by providing an embossing effect on the coating surface while satisfying the quality of the existing epoxy-based solvent-free flooring agent according to the present invention.

Claims (4)

To be non-solvent floor paint and have a slip function, 20 to 40% by weight of bisphenol-A epoxy resin, 1 to 8% by weight of colored pigment used in epoxy solvent-free paint, 50 to 70% by weight of extender pigment, and 0.1 to 1% by weight of silicone antifoaming agent , And 0.5 to 1% by weight of unsaturated polycarboxylic acid-based wetting and dispersing agent (A), A curing agent (B) comprising 50 to 55 wt% of an amine curing agent, 10 to 20 wt% of a curing accelerator, and 30 to 40 wt% of a viscosity modifier, based on the total weight of the curing agent (B), and Embossed pattern former (C) comprising 60 to 70% by weight of talc, and 30 to 40% by weight of Benton (Bentone, Quaternary Ammonium Bentonite Complex), based on the total weight of the embossed pattern former (C) Three-component epoxy-based embossing solvent-free coating composition comprising a. The method of claim 1, The mixing ratio of the above-mentioned main body (A): hardener (B): embossing pattern forming agent (C) is a weight ratio of 1: 1: 1 to 5: 1: 3. The method of claim 1, The composition further includes one additive selected from the group consisting of a coupling agent, a leveling agent, a pigment dispersant, a multipurpose additive, a waterproofing agent, a preservative, a water repellent, a stabilizer, a thickener, a preservative, a rust remover, an antistatic agent, and a combination thereof. A three-component epoxy-based embossing solvent-free coating composition. When the flooring is installed to be a non-solvent flooring paint and have a non-slip function, Applying an epoxy primer to treat the undercoat; And 20-40% by weight of bisphenol-A epoxy resin, 1-8% by weight of colored pigment used in epoxy-based solvent-free paint, 50-70% by weight of sieving pigment, 0.1-based antifoam 0.1% 50% to 55% by weight of the amine-based curing agent and 10 to 20% to the total weight of the main component (A) and the curing agent (B), each containing 1 to 1% by weight and 0.5 to 1% by weight of an unsaturated polycarboxylic acid-based wet dispersion agent. 60% to 70% by weight of talc, and Benton (Bentone, Quaternary Ammonium Bentonite Complex), based on the total weight of the curing agent (B) and the embossed pattern former (C) by weight%, and 30 to 40% by weight of the viscosity modifier. Performing curing after applying the three-component epoxy-based embossing solvent-free coating composition comprising the embossing pattern forming agent (C) comprising ˜40 wt% Construction method of flooring material.