KR101540926B1 - Odor-free and Non-toxic Two Liquids Type of Epoxy Resin Based Composition and Method for Preparing the Same - Google Patents

Abstract

The present invention relates to a two-liquid type water-soluble epoxy resin floor finishing material composition which does not have odors or toxicity. The composition includes: a main ingredient (A) including 10-50 wt% of an epoxy resin and a reactive diluent agent; and a curing agent (B) including 45-65 wt% of a cured resin mixture removed with free amine and 15-40 wt% of colored pigments as well as additives, fillers, and curing accelerators for the remaining part. The composition has a high content of the reactive diluent agent and adjusts a content of the colored pigments to have appropriate surface tension when applied to coat the floor. The odorless, non-toxic, and eco-friendly floor finishing composition also has excellent workability and uses the cured resin removed with free amine.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-component water-soluble epoxy resin flooring composition and a method for producing the same,

The present invention relates to an odorless and non-toxic two-component water-soluble epoxy resin flooring composition and a process for its preparation.

Currently, there are several types of epoxy paint products that are used as floor finishing materials for building parking lots such as apartments and discount stores in Korea, and as finishing materials for factory floor coatings.

The first is an epoxy coating agent with a construction thickness of 0.1 to 0.3 mm. It is mainly used in apartments, villas, discount stores, etc. It is also called as a thin film epoxy finishing material because of its thin construction thickness. Since it is finished with a thin film thickness, it has a problem of worn or peeled off from corners or lamp parts which have a lot of traffic after years of construction, and has a disadvantage in that the cosmetic appearance is not good due to unevenness of the surface. However, It is still applied to construction sites.

Secondly, epoxy lining flooring is usually applied with a film thickness of 2 ~ 3mm. It is used mainly in high-grade buildings and commercial facilities due to its excellent quality. It is beautiful in beauty because it is thick in construction and has high strength functionality. It can be used semi-permanently after construction. It is superior in quality than epoxy coating, Or more.

The third is epoxy resin mortar method which mixes epoxy resin and silica sand with average particle size of 0.4 ~ 1.5mm and finishes on the parking lot floor and factory floor. Because epoxy resin mortar is the main component of silica, it has the best strength and abrasion resistance among epoxy based floor finishes and it is used in places where heavy and frequent movements such as heavy equipment factories and cargo terminals are used. It has a disadvantage that it is easily contaminated because the surface condition is not smooth because it is closed with sandpaper, but it also has the advantage of anti-slip function. The construction cost is higher than the epoxy lining flooring finishing because it needs to be constructed with a minimum thickness of 3mm.

Fourthly, there is a construction method in which the applicant applies a patented method (Registration No. 10-0419446), and finishes by spraying with an airless apparatus to obtain a film thickness of 0.3 to 1 mm with a solventless epoxy. Thin film thickness enables the same level as epoxy lining 3mm product, and is economical enough not to make a big difference with the epoxy coating cost.

However, all of the above prior arts are oil-based products containing VOCs (Volatile Organic Compounds). In order to improve the workability during the construction, diluent should be diluted from 2 to 3% to as much as 30 to 40% It is causing destruction. Established in 2005 under the Ministry of Environment, the Metropolitan Air and Environmental Authority proposes standards for each manufacturer in order to reduce the amount of volatile organic compounds contained in paints sequentially. Which is environmentally friendly. For this reason, the paint maker has developed water-soluble epoxy for several years and currently manufactures and sells the product. However, since it is a thin film type, it usually forms a film thickness of 0.1-0.3 mm by a single coating. If it is desired to form a further coating film, There are disadvantages such as an increase in the construction period and an increase in the construction cost due to an increase in the labor cost.

It is an object of the present invention to provide an odorless / non-toxic two-component water-soluble epoxy resin flooring composition containing little harmful odors and VOCs (volatile organic compounds) and containing no harmful heavy metals .

Another object of the present invention is to provide a method for producing an odorless / non-toxic two-pack type water-soluble epoxy resin flooring composition.

One aspect of the present invention is an odorless and non-toxic, two-pack type water-soluble epoxy resin bottom coating composition comprising two-component type of a mixture of a subject mixture (A) and a curing agent mixture (B) as described below.

(a) 50 to 90% by weight of bisphenol epoxy resin or bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq, (b) an aliphatic glycidyl ether of C ₁₂ to C ₁₄ , 1,4-butanediol diglycidyl (A) comprising 10 to 50% by weight of a reactive diluent selected from the group consisting of a vinyl ether, a vinyl ether, a vinyl ether, a vinyl ether, a vinyl ether, a vinyl ether,

(i) Mixing a polyamine, isophorone diamine, tetraethylene pentaamine and an amine surfactant, and reacting the mixture with bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq, cooling, adding water to emulsify, 45 to 65% by weight of a cured resin mixture obtained by vacuum dehydration under vacuum, and (ii) 45 to 65% by weight of a mixture of titanium dioxide, carbon black, iron oxide yellow, iron oxide red, phthalocyanine blue, phthalocyanine green, non-toxic iron oxide green, (Iii) from 0.1 to 5% by weight of an additive selected from the group consisting of antifoaming agents, dispersing agents, leveling agents, antimicrobial agents and mixtures thereof, (iv) from 15 to 40% by weight of a colorant selected from the group consisting of 2 탆 and fillers 1 to 2 selected from the group consisting of silicon dioxide (SiO ₂ ), barium sulphate (BaSO ₄ ), aluminum oxide (Al ₂ O ₃ ), calcium carbonate (CaCO ₃ ), talc, And (v) 0.1 to 5% by weight of a curing accelerator of 2,4,6-tris (dimethylaminomethyl) phenol.

The composition of the present invention can improve the processability by lowering the viscosity of the subject mixture, improving leveling and spreadability by adjusting the addition amount of the reactive diluent to 10-50% of the subject (A) while using a water-soluble epoxy resin- By using the cured resin from which the free amine is removed through the pretreatment, an odorless and nontoxic environmentally friendly coating film can be formed.

In one embodiment, the composition can form a coating film having a film thickness of 50 mu m to 3000 mu m with a brush, a roller, and a dedicated regina spray without further dilution.

In one embodiment, the reactive diluent may be added in an amount of 10 to 50% by weight of the subject mixture (A) and may contain 0.05 to 0.5% by weight of a polyether modified siloxane. This can lower the viscosity of the subject and improve leveling and spreadability.

In one embodiment, the polyamine in the cured resin mixture from which the free amine has been removed can be 30-40 wt% polyoxypropylene diamine.

In one embodiment, the amine-based surfactant is a primary amine having a molecular weight of 2000 to 3000 and a molecular weight of 15 to 25 wt%, which may be a monofunctional polyamine.

In one embodiment, the cured resin mixture from which the free amine has been removed is subjected to an adduct reaction at a temperature of 80 ° C to 150 ° C, cooled to 80 ° C or lower, mixed with water for 30 minutes or more, By vacuum dehydration under reduced pressure conditions for 0.5 to 12 hours. Here, the amine type surfactant may be a primary amine having a molecular weight of 2000 to 3000 and may be a monofunctional polyether amine.

Another aspect of the present invention provides a method of making the odorless and non-toxic two-component water-soluble epoxy resin flooring composition comprising the steps of:

(A) 50 to 90% by weight of a bisphenol epoxy resin or bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq and an aliphatic glycidyl ether of C ₁₂ to C ₁₄ , 1,4-butanediol diglycidyl ether, 10 to 50% by weight of a reactive diluent selected from 1,6-hexanediol diglycidyl ether and mixtures thereof;

Step b) Mixing the polyamine, isophorone diamine, tetraethylenepentamine and the amine surfactant and reacting the mixture with bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq, cooling, adding water to emulsify, To obtain a cured resin mixture from which free amines have been removed;

C) mixing 45 to 65% by weight of the cured resin mixture obtained in step b) with at least one of titanium dioxide, carbon black, iron oxide sulfur, iron oxide red, phthalocyanine blue, phthalocyanine green, non-toxic iron oxide green, From 0.1 to 5% by weight of an additive selected from the group consisting of antifoaming agents, dispersing agents, leveling agents, antimicrobial agents and mixtures thereof, 15 to 40% by weight of color pigments selected from the group consisting of silicon dioxide (SiO ₂ ) 1 to 20% by weight of a filler selected from the group consisting of barium sulfate (BaSO ₄ ), aluminum oxide (Al ₂ O ₃ ), calcium carbonate (CaCO ₃ ), talc and mixtures thereof, Preparing a curing agent mixture (B) comprising 0.1 to 5% by weight of a curing accelerator of tris (dimethylaminomethyl) phenol;

D) mixing the subject mixture (A) obtained in a) with the curing agent mixture (B) obtained in c) in a weight ratio of 1: 0.5 to 1;

In one embodiment, in step b), an adduct is reacted at a temperature of 80 ° C to 150 ° C. After cooling to 80 ° C or lower, water is added and mixed for 30 minutes or more to emulsify. The free amine can be removed by vacuum dehydration for ~ 12 hours.

The composition of the present invention is prepared by adjusting the addition amount of the reactive diluent to 10-50% of the target mixture by using the water-soluble epoxy resin-based subject, thereby lowering the viscosity of the subject mixture, improving the leveling and spreadability and improving the processability, The use of the cured resin makes it possible to form an odorless and non-toxic coating film because it has almost no odor and does not discharge harmful volatile substances as compared with conventional water-soluble epoxy resin compositions. Further, the water-soluble epoxy coating material according to the present invention has few VOCs, has excellent storage stability, has no harmful heavy metal, is excellent in water resistance, abrasion resistance, chemical resistance, adhesion property and physical strength, The performance of the finish can be demonstrated.

Unless defined otherwise, all technical terms used in the present invention have the following definitions and are consistent with the meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Also, preferred methods or samples are described in this specification, but similar or equivalent ones are also included in the scope of the present invention. The contents of all publications referred to herein are incorporated herein by reference.

The term "about" is used herein to refer to a reference quantity, a level, a value, a number, a frequency, a percent, a dimension, a size, a quantity, a weight, or a length of 30, 25, 20, 25, 10, 9, 8, 7, Level, value, number, frequency, percent, dimension, size, quantity, weight or length of a variable, such as 4, 3, 2 or 1%.

Throughout this specification, the words "comprises" and "comprising ", unless the context requires otherwise, include the steps or components, or groups of steps or elements, Steps, or groups of elements are not excluded.

Hereinafter, the present invention will be described in detail with reference to the drawings.

An odorless and non-toxic two-component type water-soluble epoxy resin bottom coating composition of the present invention comprises a main component (A) comprising a water-soluble epoxy resin and a reactive diluent, a curing agent B containing an amine-based curing resin and a coloring pigment, a filler and a curing accelerator ).

Topic (A)

The subject (A) is preferably composed of the epoxy resin and the reactive diluent as the subject mixture (A) in a ratio of 50:50 to 90:10. If the proportion of the conventional diluent is more than 30% by weight, the strength and chemical resistance are deteriorated and it is not economical. However, if the ratio of the diluent is low, the content of the colored pigment can not be increased, and it is difficult to have sufficient hiding power. In the present invention, the content of the diluent may be adjusted to 10 to 50 wt%, and preferably 0.05 to 0.5 wt% of the polyether modified siloxane. By increasing the content of the diluent and adding the polyester modified siloxane, the surface tension of the paint can be lowered and the leveling and spreadability can be improved. Therefore, it is possible to form a coating film having a thickness of 50 mu m to 3000 mu m with a brush, a roller, and a dedicated regina spray without further dilution during coating.

The curing agent (B)

The curing agent is prepared by (i) reacting a polyamine, isophoronediamine, tetraethylenepentamine, and an amine surfactant with an epoxy equivalent of 160 to 340 g / eq of bisphenol epoxy resin, cooling, And 45 to 65% by weight of the cured resin mixture from which the free amine obtained by mixing and emulsifying the mixture by vacuum deaeration under reduced pressure is removed. The polyamine is preferably a polyoxypropylene diamine in an amount of 30 to 40% by weight, and the amine-based surfactant is a primary amine having a molecular weight of 2000 to 3000 in an amount of 15 to 25% by weight, have.

In the present invention, a cured resin in which free amines capable of forming ammonia are removed is used instead of the mixed cured resins in order to solve the problem of odor and toxicity. As a result, it was confirmed that ammonia volatility was significantly lower than that of the conventional water-soluble epoxy resin. The curing resin from which the free amine is removed has, for example, an amine composition and an epoxy resin as an adduct at 80 ° C or higher. After cooling to 80 ° C or less, water is added and mixed for 30 minutes or more to emulsify. Vacuum deodorization is performed under reduced pressure of about 30 Torr or less for 0.5 to 12 hours, and free amine (ammonia) .

The curing agent may be (ii) 15 to 40 wt% of a color pigment selected from the group consisting of titanium dioxide, carbon black, iron oxide yellow, iron oxide red, phthalocyanine blue, phthalocyanine green, non-toxic iron oxide green, . In the case of a conventional epoxy resin-based paint or a thick film epoxy resin-based composition disclosed in the present invention (10-0962259), it is contained in an amount of less than about 10% by weight, so that it is possible to exhibit hiding power when applied with a thick thick film. Even when the content of the pigment is 15 to 40% by weight, it is possible to exhibit workability by showing a suitable viscosity for application. It is preferable that the color pigment is a pigment which is harmless to the human body and does not contain heavy metals such as lead, cadmium, mercury and chromium.

The curing agent comprises (iii) 0.1-5 wt% of an additive selected from the group consisting of antifoaming agents, dispersants, leveling agents, antibacterial agents, and mixtures thereof. If the content of the additive is less than 0.1% by weight, the amount of the additive is insufficient and the respective functions are not exhibited. If the additive is more than 5% by weight, excessive use of the additive decreases the chemical performance and it is not economical. If necessary, a thickener, an anti-settling agent, a corrosion inhibitor and the like may be further included.

(Iv) the curing agent is a mixture of silicon dioxide (SiO ₂ ), barium sulfate (BaSO ₄ ), aluminum oxide (Al ₂ O ₃ ), calcium carbonate (CaCO ₃ ), talc, And 1 to 20% by weight of a filler selected from the group consisting of In the present invention, since the content of the coloring pigment capable of functioning as a filler can be up to 40% by weight, the content of the filler may be relatively low. That is, when the content of the filler is higher than 20% by weight, the viscosity increases and the workability is lowered. If the content is lower than 1% by weight, the storage stability may be lowered.

The curing agent comprises (v) 0.1 to 5% by weight of a curing accelerator of 2,4,6-tris (dimethylaminomethyl) phenol. If the amount is less than 0.1% by weight, the effect of accelerating curing is extremely small and the hardness of the coating film is weak. If the amount is larger than 5% by weight, the curing rate is accelerated, and workability is deteriorated.

When a paint containing the two-part water-soluble flooring finish composition according to the present invention is prepared and sprayed as a brush, a roller, a regimen work and an airless sprayer, it is easy to work, To 3,000 mu m.

A method of making the odorless / non-toxic two-pack type water-soluble epoxy resin flooring composition of the present invention comprises the following steps a) to d).

(A) 50 to 90% by weight of a bisphenol epoxy resin or bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq and an aliphatic glycidyl ether of C ₁₂ to C ₁₄ , 1,4-butanediol diglycidyl ether, 10 to 50% by weight of a reactive diluent selected from 1,6-hexanediol diglycidyl ether and mixtures thereof;

Step b) Mixture of polyamine, isophorone diamine, tetraethylenepentamine and amine surfactant is reacted with bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq in an adduct, cooled, mixed with water for 30 minutes or more And the mixture is vacuum-deaerated under reduced pressure to remove free amines, preferably subjected to an adduct reaction at a temperature of 80 ° C to 150 ° C, cooled to 80 ° C or lower and then charged with water for 30 minutes or more to emulsify Vacuum deodorization under reduced pressure of 30 Torr or less for 0.5 to 12 hours to obtain a cured resin mixture from which free amine is removed;

C) mixing 45 to 65% by weight of the cured resin mixture obtained in step b) with at least one of titanium dioxide, carbon black, iron oxide sulfur, iron oxide red, phthalocyanine blue, phthalocyanine green, non-toxic iron oxide green, From 0.1 to 5% by weight of an additive selected from the group consisting of antifoaming agents, dispersing agents, leveling agents, antimicrobial agents and mixtures thereof, 15 to 40% by weight of color pigments selected from the group consisting of silicon dioxide (SiO ₂ ) 1 to 20% by weight of a filler selected from the group consisting of barium sulfate (BaSO ₄ ), aluminum oxide (Al ₂ O ₃ ), calcium carbonate (CaCO ₃ ), talc and mixtures thereof, Preparing a curing agent mixture (B) comprising 0.1 to 5% by weight of a curing accelerator of tris (dimethylaminomethyl) phenol;

D) mixing the mixture of the subject mixture (A) obtained in a) and the curing agent mixture (B) obtained in the step c) in a weight ratio of 1: 0.5 to 1;

Hereinafter, the present invention will be described in more detail with reference to Examples. It will be apparent to those skilled in the art that these embodiments are merely illustrative of the present invention and that the scope of the present invention is not limited to these embodiments.

[Preparation Example 1] Preparation of free amine-free cured resin mixture

38 weight percent polyoxypropylene diamine, 16 weight percent molecular weight 2000-3000 primary amine polyfunctional monomers, 8 weight percent cycloaliphatic amine isophoronediamine, and 3 weight percent aliphatic amine tetraethylene penta The amine was reacted with bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq at 16% by weight at a temperature of 80 ° C or higher, mixed with 19% by weight of water and emulsified. The emulsion was vacuum- Deg.] C to obtain a cured resin mixture from which free amine was removed.

[Examples 1 to 3]

First, in a mixing tank, 65 to 80 parts by weight of a liquid epoxy resin having an epoxy equivalent of 187 g / eq (KODO CHEMICAL, YD-128) and 20 to 35 parts by weight of 1,4-butanediol diglycidyl ether as a reactive diluent And the mixture was homogeneously mixed with a stirrer to prepare a subject mixture (A). Next, 60% by weight of the cured resin mixture from which the free amine obtained in Production Example 1 was removed was blended in another mixing container, and 2% by weight of 2,4,6-tris (dimethylaminomethyl) phenol was blended as a curing accelerator, 20 wt% of titanium dioxide (Dupont, R-902), 0.3 wt% of carbon black (Degussa, S-160) and 1.7 wt% of iron oxide sulfur (Bayfrox 920) (BYK-012), 1% by weight of a water-soluble dispersant (BYK-180), and 5% by weight of a water-soluble antifoaming agent 1% by weight of a dispersing agent (BYK-190) and 1% by weight of a water-soluble leveling agent (BYK-348) were mixed and stirred for 30 minutes or more with a high-speed stirrer, .

[Comparative Examples 1 to 3]

A water-soluble epoxy paint having the composition as shown in Table 1 and not subjected to decompression removal for the cured resin mixture was prepared.

[Experimental Example 1]

The composition prepared in Examples 1 to 3 and Comparative Examples 1 to 3 was mixed with the mixture of the subject mixture (A): the curing agent mixture (B) in a weight ratio of 1: 1, and the coating thickness of the coating film applied once was 0.53 mm, and other properties were measured by various test methods. The results are shown in Table 2 below.

[Experimental Example 2] Comparison of odor intensity with existing products

The composition according to Example 1 was compared with a conventional water-soluble curing resin composition as shown in Table 3 below, and a handheld odor meter (OMX-SR, manufacturer: Shinyei Techmology Co., Ltd) was used. The gas sampling method consisted of continuous suction by the pump and the detection concentration was 0.1ppm ~ 200ppm (Concentration of ethanol). In Table 1, Green Techcom's prior art composition refers to the composition disclosed in the applicant's prior registration No. 10-0962259.

Example 1 GreenTekcom patented composition
(W-poxy) D-BASF
EC-301 Kukdo Chemical
KH-700 Kukdo Chemical
H-3808  Odor intensity 10 55 67 210 955

[Experimental Example 3] ION (NH ₃ ) analysis

The composition of Example 1 of the present invention was compared with existing patented products, and ION (NH3) analysis occurred during the curing process. The analytical method was performed as follows. As can be seen from Table 4, the composition of Example 1 of the present invention shows significantly lower ammonia volatility than conventional water-soluble epoxy coatings.

① Preparation of Imoinger Pump

② Fill the glass bottle with UPW 100ml.

③ Sampling with pump flow 2LPM for 2 hours

④ Transfer sample bottle.

⑤ Analyze with Ion Chromatography (HPIC) Analyzer

[Experimental Example 4] Analysis of reactivity with existing patent coating compositions

① The housekeeping time measurement is the housekeeping time test method

For the method of testing the pot life, refer to Test Method 5.8 (Gelling Time at Room Temperature) of KS M 3331 (Test Method for Liquid Polyunsaturated Polyester Resin). First, add 50, 1, or 100 g of sample (subject) to a beaker in a chemical balance and keep the temperature of the sample at 25 0.5 0.5 ℃. Add a specified amount of curing agent, immediately turn on the stopwatch, mix well with a glass rod for 30 seconds, and mix and dissolve uniformly. The sample is rinsed twice with a glass rod about every minute, then the glass rod is raised to observe the flow state. As the gelling time approaches, the flow state is continuously observed repeatedly. When the sample attached to the glass rod does not go up to the thread shape but starts to be cut off, the stopwatch is stopped and the time is read and measured as housework time. However, this operation is carried out at least twice, and the average value is displayed on the division and it is concluded with 1 digit after the decimal point.

② According to Korean Industrial Standards (KS) KS M 5000 ?? 2512

[Experimental Example 4]

The pollutant release performance of the composition of Example 1 was tested by the KS F 4937 pollutant release test method and the results are shown in Table 5. Referring to Table 6, it was confirmed that the volatile substance emission was low and almost no formaldehyde or toluene was emitted.

The present invention has been described with reference to the preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

Claims (8)

In a water-soluble epoxy resin-based flooring finish composition,
(a) 50 to 90% by weight of bisphenol epoxy resin or bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq, (b) an aliphatic glycidyl ether of C ₁₂ to C ₁₄ , 1,4-butanediol diglycidyl (A) comprising 10 to 50% by weight of a reactive diluent selected from the group consisting of a vinyl ether, a vinyl ether, a vinyl ether, a vinyl ether, a vinyl ether, a vinyl ether,
(i) Mixing a polyamine, isophorone diamine, tetraethylenepentamine and an amine surfactant, and causing an adduct reaction with a bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq, cooling, adding water to emulsify, 45 to 65% by weight of a cured resin mixture obtained by vacuum dehydration under vacuum, and (ii) 45 to 65% by weight of a mixture of titanium dioxide, carbon black, iron oxide yellow, iron oxide red, phthalocyanine blue, phthalocyanine green, non-toxic iron oxide green, (Iii) from 0.1 to 5% by weight of an additive selected from the group consisting of antifoaming agents, dispersing agents, leveling agents, antimicrobial agents and mixtures thereof, (iv) from 15 to 40% by weight of a colorant selected from the group consisting of 2 탆 and fillers 1 to 2 selected from the group consisting of silicon dioxide (SiO ₂ ), barium sulphate (BaSO ₄ ), aluminum oxide (Al ₂ O ₃ ), calcium carbonate (CaCO ₃ ), talc, (B) a curing agent comprising 0.1 to 5% by weight of a curing accelerator of 2,4,6-tris (dimethylaminomethyl) phenol;
/ RTI >
An odorless and non-toxic two-pack water-soluble epoxy resin flooring composition, characterized in that the reactive diluent comprises from 0.05 to 0.5% by weight of polyester modified siloxane.
The method according to claim 1,
An odorless and non-toxic, two-pack type water-soluble epoxy resin flooring composition, characterized in that the composition forms a coating film having a coating thickness of 50 mu m to 3000 mu m with a brush, roller, dedicated regi or spraying.
delete The method according to claim 1,
An odorless and non-toxic two-component water-soluble epoxy resin flooring composition, characterized in that the polyamine is 30 to 40% by weight of polyoxypropylene diamine.
The method according to claim 1,
The cured resin mixture from which the free amine is removed is subjected to an adduct reaction at a temperature of 80 ° C to 150 ° C, cooled to 80 ° C or lower and then charged with water to be emulsified. The cured resin is emulsified under reduced pressure of 30 Torr or less for 0.5 to 12 hours Which is obtained by vacuum deodorization. The two-part type water-soluble epoxy resin flooring composition is an odorless and non-toxic two-component water-soluble epoxy resin.
The method according to claim 1,
Wherein the amine-based surfactant is a primary amine having a molecular weight of 2000 to 3000 and is a single-functional polyetheramine. The two-component water-soluble epoxy resin flooring composition according to claim 1,
A method for forming a coating film using the composition according to any one of claims 1, 2 and 4 to 6,
(A) 50 to 90% by weight of a bisphenol epoxy resin or bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq and an aliphatic glycidyl ether of C ₁₂ to C ₁₄ , 1,4-butanediol diglycidyl ether, 10 to 50% by weight of a reactive diluent selected from 1,6-hexanediol diglycidyl ether and mixtures thereof;
Step b) Mixing the polyamine, isophorone diamine, tetraethylenepentamine and the amine surfactant, reacting the mixture with bisphenol epoxy resin having an epoxy equivalent of 160 to 340 g / eq, cooling, adding water to emulsify, Vacuum deodorization under reduced pressure to obtain a cured resin mixture from which free amines have been removed;
C) mixing 45 to 65% by weight of the cured resin mixture obtained in step b) with at least one of titanium dioxide, carbon black, iron oxide sulfur, iron oxide red, phthalocyanine blue, phthalocyanine green, non-toxic iron oxide green, From 0.1 to 5% by weight of an additive selected from the group consisting of antifoaming agents, dispersing agents, leveling agents, antimicrobial agents and mixtures thereof, 15 to 40% by weight of color pigments selected from the group consisting of silicon dioxide (SiO ₂ ) 1 to 20% by weight of a filler selected from the group consisting of barium sulfate (BaSO ₄ ), aluminum oxide (Al ₂ O ₃ ), calcium carbonate (CaCO ₃ ), talc and mixtures thereof, Preparing a curing agent mixture (B) comprising 0.1 to 5% by weight of a curing accelerator of tris (dimethylaminomethyl) phenol;
D) mixing the mixture of the subject mixture (A) obtained in the step a) and the curing agent mixture (B) obtained in the step c) in a weight ratio of 1: 0.5 to 1;
Soluble epoxy resin flooring composition. ≪ RTI ID = 0.0 > 1. < / RTI >
8. The method of claim 7,
And water is added thereto after cooling to 80 ° C to room temperature. The mixture is emulsified for 30 minutes to 50 minutes, and then subjected to pressure reduction under 30 Torr for 0.5 to 12 hours A method for producing an odorless and non-toxic, two-pack type water-soluble epoxy resin flooring composition, characterized by vacuum deodorization to remove free amine.