KR101067471B1 - Eco-friendly bottom material compositions composed water soluble n-cyanic acid ester polymer resin and hybrid divided complex, and construction method using this - Google Patents

Abstract

An eco-friendly flooring composition and a construction method using the same are disclosed.
Eco-friendly flooring composition according to the present invention is 100 parts by weight of a polymerized resin reacted n-cyanate ester monomer (monomer) under an acid catalyst; And 20 to 1,200 parts by weight of a hydrocuring agent in an aqueous solution consisting of 1 to 30% by weight of glycolic acid (HOCH ₂ COOH) and a polyhydric alcohol and 70 to 99% by weight of water.
According to the present invention, by adopting a water-soluble hydrophobic agent can meet the quality standards of the surface finish material for a variety of floors, while being environmentally friendly and odorless characteristics, and can simplify the construction process to achieve an air shortening.

Description

Eco-Friendly Bottom Material Compositions Composed Water Soluble n-Cyanic Acid Ester Polymer Resin and Hybrid Divided Complex, and Construction Method Using This }

The present invention relates to an environmentally friendly flooring composition consisting of a hydrocurable n-cyanic acid ester-based polymer resin and a hybrid powder, and a construction method using the same.

Where floor finishing materials are used, such as the underground parking lot of apartments and public sports facilities, are gradually becoming a place for people's living.In accordance with this trend, floor finishing materials can be further secured by the concept of dustproofing or finishing. Higher quality became important. It is also necessary to satisfy the desire for eco-friendly properties according to well-being needs. In general, after the construction of civil and architectural structures such as parking lots, hospitals, factories, shopping centers, offices, restaurants, etc., the floors are constructed to protect the concrete floors inside the building while improving the external aesthetics. As a surface finishing material, synthetic resin-type floor finishes such as epoxy resins, urethane resins, and vinyl resins and cement-based floor finishes are used.

Among the floor finishing materials, concrete floor treatment finishes such as parking lots and sports facilities, etc., synthetic resin paint finishes are mainly used, such as epoxy resin, urethane resin, vinyl resin, etc., which are organic materials. The epoxy and urethane resins are not only excellent in flexibility, elasticity, dust resistance, pollution resistance, workability, fast drying and water resistance, but also have excellent initial adhesive strength, and have the advantage of using a large amount of various fillers. If a coating film having a predetermined thickness or more is formed on the surface of the cured concrete floor and cured with a finishing material containing an epoxy resin or a urethane resin, it can effectively block the concrete floor from the external environment at the initial stage of construction and exhibit excellent finish effect in a short time. However, the finishing material containing epoxy resin shows excellent properties in strength, dustproofness, abrasion resistance, adhesive strength, gloss, etc., but the air permeability is poor so that the adhesive surface or the upper epoxy resin layer does not pass moisture contained in the concrete below. . Therefore, when the coating film is formed in a state where the concrete is not sufficiently dried, the moisture contained in the concrete is vaporized due to the difference in temperature or humidity, and a layer is formed between the coating film and the concrete by volume expansion, thereby causing the lifting of the finishing material. In addition, the finishing material containing the epoxy resin is also difficult to repair and maintenance due to repeated defects such as peeling, dropping, lifting in a short period of time after construction there is a very difficult. In addition, epoxy and urethane-based flooring are mostly products containing volatile organic compounds, and there are problems of fatal adverse effects on the human body such as exposure to workers during construction and long-term risk exposure of users due to continuous volatilization of residual solvent after construction. Not very vulnerable to fire due to volatile solvent, there is a problem that can cause a large accident by generating a large amount of toxic gas in the fire.

The finishing material containing a urethane resin is excellent in the strength of a coating film, or waterproofing function. In addition, since it has a certain degree of elasticity and strong resistance to deformation even when exposed to direct sunlight for a long time, it is widely used for rooftop waterproofing materials, ground track flooring materials, and gymnasium flooring. However, including the urethane resin has a weak disadvantage in heat. In addition, when epoxy and urethane resins are used as the flooring, there is a problem that the curing time may be too long. If the air temperature is low and underground, such as underground parking, it may not be possible to apply the application, it takes a lot of manpower and time. In addition, although the gloss property is excellent after the work is completed, when used as the parking lot floor, there is a problem that the friction noise with the vehicle tire is severe, and the slip resistance is lowered.

The most problematic when using epoxy and urethane are both bisphenol A and volatile environmentally harmful compounds (VOCs) generated in large amounts (about 44 mg / kg) and heavy metals containing large amounts of lead (about 70 mg / kg). It can have serious adverse effects on the human body (breast cancer, erectile erection, testicular cancer, especially fatal to pregnant women). The level of environmentally harmful compounds (VOCs) is 11 times higher than the standard value (4 mg / kg), and these components emit toxic gases even in the event of fire, causing many casualties. It is becoming.

Such pollutants can have a harmful effect on the construction environment and human body. In addition, organic finishes include uncured resins and hardeners, especially amines and other reactive diluents (thinner, toluene, xylene, etc.), which is highly volatile and highly flammable. And when a fire occurs, toxic gas is generated, which can lead to serious safety problems. For this reason, in order to solve the conventional finishing material problem, there has been a method of forming a separate protective layer by forming an inorganic or organic / inorganic composite protective layer such as powder hardener, but the inorganic or organic / inorganic composite protective layer is peeled off. Or, the problem of falling may cause secondary pollution, and the original function as a protective material is lost, and thus the fundamental problem cannot be solved.

Therefore, the debate on environmental law regulation of finishing materials containing epoxy or urethane has continued, and in 2009, as Japan, which has mandated the labeling of finishing materials according to formaldehyde emission as floor finishing materials for concrete structures including underground parking lots In the revised edition of KS F 4937 [Surface Finisher for Parking Lot Floorings], it strengthens the basic performance of finishing materials such as impact resistance, adhesion performance, and watertightness performance while strictly setting emission standards for environmentally harmful substances such as TVOC, formaldehyde, and toluene. Attempts have been made to gradually standardize the quality standards for car park floor finishes.

Therefore, there is a need for related technologies that can prevent the occurrence of environmentally harmful substances at the same time and provide eco-friendly finishing materials that can respond to environmental regulations in the future by incorporating eco-friendly materials. There is also a need for a technique that greatly improves the curing time.

Therefore, the present inventors, while trying to develop an eco-friendly flooring composition and a construction method using the same, does not contain harmful substances such as HCHO, TVOC by adopting a water-soluble hydrophobic agent instead of volatile organic solvent, KS F 4937 [Parking surface Finishing material] It meets the quality standards and adopts hardener and hybrid powder to control the hardening time of the flooring material, and also reduces the air shortening effect by simplifying the conventional complicated construction process by the Single / Dual Step Coating (SSC / DSC) method. The present invention was completed by confirming the appearance.

An object of the present invention is to provide an environmentally friendly flooring composition and a construction method using the same.

More specifically, an object of the present invention is to provide a flooring composition capable of meeting various floor surface finishing material quality standards and controlling flooring curing time without containing VOCs harmful substances such as HCHO and TVOC.

Still another object of the present invention is to provide a flooring construction method that simplifies the construction process and causes shortening of air.

In order to achieve the above object, the present invention comprises: 100 parts by weight of a polymerized resin obtained by reacting n-cyanate ester monomer (monomer) under an acid catalyst; And ii) 20 to 1,200 parts by weight of a water based hardening agent in an aqueous solution consisting of 1 to 30% by weight of glycolic acid (HOCH ₂ COOH) and a polyhydric alcohol and 70 to 99% by weight of water. To provide.

In addition, the present invention is a base surface treatment step for cleaning and cleaning the cracks and the base surface; And ii) mixing the n-cyanic acid ester-based polymer resin and the hydraulic agent, and then coating the base surface with the mixed solution.

Hereinafter, the present invention will be described in detail.

The present invention comprises: 100 parts by weight of a polymerized resin obtained by reacting n-cyanic acid ester monomer (monomer) under an acid catalyst; And ii) 20 to 1,200 parts by weight of a water based hardening agent in an aqueous solution consisting of 1 to 30% by weight of glycolic acid (HOCH ₂ COOH) and a polyhydric alcohol and 70 to 99% by weight of water. To provide.

In the eco-friendly flooring composition of the present invention, the n-cyanate ester monomer is methyl cyanate (CH ₃ OC≡N), ethyl cyanate (C ₂ H ₅ OC≡N), isopropyl cyanate (iC ₃ H ₇ OC≡N), isobutyl cyanate (iC ₄ H ₉ OC≡N) and phenyl cyanate (C ₆ H ₅ OC≡N)) is preferably at least one member selected from the group consisting of: It is preferably at least one selected from the group consisting of 4-Butanediol, Ethylene Glycol, Propylene Glycol, Diethylene Glycol and PTMG (Polytetramethylemeetherglycol).

In addition, in the eco-friendly flooring composition of the present invention, the flooring composition is 20 to 1,600 weight of the hybrid powder consisting of 30 to 80% by weight calcium salt compound and 20 to 70% by weight silicate compound based on 100 parts by weight of the polymerization resin It may further comprise a part. At this time, the calcium salt compound is calcium acetate [Ca (CH ₃ COO) ₂ ], calcium nitrate, calcium carbonate, calcium hydroxide, calcium sulfate, α-half gypsum (α-CaSO ₄ · 1 / 2H ₂ O), β-half At least one member selected from the group consisting of gypsum (β-CaSO ₄ 1 / 2H ₂ O), anhydrous gypsum (II-CaSO ₄ ) and back cement, and the silicate compound is orthosilicate or cyclosilicate. (cyclosilicate), inosilicate, phyllosilicate and tektosilicate, feldspar, loess and processed silicate.

When the calcium salt compound is used in less than 30% by weight of the hybrid powder, the crack followability of the flooring material is lowered after curing, and when used in excess of 80% by weight, the pot life may be poor due to the shortening of the curing time. It is not desirable. Here, the pot life refers to the time required for easy construction while maintaining the self-leveling effect by pouring the flooring composition immediately after mixing, that is, the time required for finishing by pouring on the floor after mixing. In addition, when the silicate-based compound is less than 20% by weight, the impact resistance of the flooring material may be lowered after curing. When the silicate compound is more than 70% by weight, the workability may be deteriorated due to the deterioration of self leveling. not.

Eco-friendly flooring composition of the present invention has the characteristics of odorless / water-based hardening (excluding volatile organic solvents). In addition, the hydraulic agent contains a water and an aqueous solution of Glycolic acid (HOCH ₂ COOH) and a water-soluble polyhydric alcohol as a main component. Glycolic acid (HOCH ₂ COOH) and the polyhydric alcohol included in the hydraulic agent plays a role in controlling the curing reaction initiation and polymerization rate forming a three-dimensional network of the polymerization resin. The hydraulic agent is composed of Glycolic acid (HOCH ₂ COOH) and 1 to 30% by weight of polyhydric alcohol and 70 to 99% by weight of water, more specifically 0.5 to 20% by weight of Glycolic acid (HOCH ₂ COOH), 0.5 to polyalcohol It is preferable to have a composition range of -10 weight% and 70-99 weight% of water. When glycolic acid (HOCH ₂ COOH) is used below the lower limit, there is a risk that the curing reaction initiation effect may be insufficient. When the glyco acid (HOCH ₂ COOH) is used above the upper limit, the curing rate may be difficult to control. In addition, when the polyhydric alcohol is used below the lower limit, there is a fear that the effect of starting the curing reaction is insufficient. When the polyhydric alcohol is used above the upper limit, odor generation and control of the curing rate may be difficult.

Flooring composition of the present invention is characterized in that the environmentally friendly composition. Specifically, 1) by using a water-soluble hydrophobic agent instead of volatile organic solvents to ensure the eco-friendly and odorless properties that do not contain the harmful substances to meet the test standards of KS F 4937 contaminants (HCHO, TVOC, toluene). 2) KS F 4937 [Surface Finisher for Parking Floor] meets the quality standards, and meets the criteria for adhesion strength, impact resistance, lubrication load resistance (80,000 times), and pollutant emission test standards. 3) The hardening time of the flooring material can be controlled by adopting the hydraulic agent and the hybrid powder. That is, the curing time according to the amount of the curing agent used can be controlled, and the curing time can be controlled by adjusting the hybrid powder. In addition, by adopting the Single / Dual Step Coating (SSC / DSC) construction method according to the ground concrete state, the complicated construction process of epoxy, urethane, and inorganic flooring materials has been avoided.

The flooring composition according to the present invention comprises: i) 100 parts by weight of a polymerized resin in which an n-cyanic acid ester monomer is reacted under an acid catalyst, ii) 1 to 30% by weight of a polyhydric alcohol (HOCH ₂ COOH) and water It is composed of 20 to 1,200 parts by weight of a water based hardening agent in an aqueous solution composed of 70 to 99% by weight, and iii) hybrid powder consisting of 30 to 80% by weight of a calcium salt compound and 20 to 70% by weight of a silicate compound. It may include 20 to 1,600 parts by weight.

When the amount of the hydraulic agent and the hybrid powder is excessively used, that is, when the amount of the hydraulic agent and the hybrid powder is used in excess of the upper limit, the amount of the n-cyanate ester polymerization resin is relatively decreased. In this case, there is a possibility that physical properties such as abrasion resistance, water-tightness, smoothness, etc. may decrease, which is not preferable. In addition, when the amount of the hardener and the hybrid powder is insignificant, that is, when the amount of the hardener and the hybrid powder is used below the lower limit, the amount of the n-cyanate ester polymerization resin is relatively increased. In this case, it is not preferable to secure pot life by excessively shortening the curing time.

In addition, when the hydrophobic agent is used outside the composition ratio below the lower limit, there is a fear that the curing time is delayed, and when it is used above the upper limit, the curing time is too short to secure pot life, which is not preferable. .

In addition, when the hybrid powder is out of the composition ratio and less than the lower limit is used, the impact resistance and crack followability of the flooring material may be lowered after curing. When the hybrid powder is used above the upper limit, the fluidity (self leveling effect) is lowered. It is unpreferable because there exists a possibility that it may become poor.

In addition, the present invention is a base surface treatment step for cleaning and cleaning the cracks and the base surface; And ii) mixing the n-cyanic acid ester-based polymer resin and the hydraulic agent, and then coating the base surface with the mixed solution.

In the flooring construction method using the eco-friendly flooring composition of the present invention, prior to the step ii) iii) pretreatment step of mixing the hydrophobic agent and the hybrid powder, and coating the base surface with the mixed solution; In this case, it is more preferable that the pretreatment of the step iii) has a construction thickness of 3.0 mm or more.

In the flooring construction method using the eco-friendly flooring composition of the present invention, the base surface is preferably concrete.

The construction method of the present invention is divided into two methods depending on whether the concrete base surface uniformity. One is that if the concrete base surface is uniform (no leveling required), pretreatment of the base surface of the concrete such as surface grinding, washing, crack putty, etc. is followed by treatment of the material, specifically, a mixture of n-cyanic acid ester-based polymer resin and a hydraulic agent. A one-component composite flooring material (FIG. 1B) that is premixed with a mixed one-component composite flooring material (A in FIG. 1) or a mixture of n-cyanic acid ester-based polymer resin, a hardener and a hybrid powder Single Step Coating (SSC method) is to be adopted (see Fig. 1).

On the other hand, when the concrete base surface is uneven (Leveling required), the mixed solution of the hydraulic agent and the hybrid powder to ensure the leveling and stability of the concrete base surface after pretreatment of the concrete base surface such as surface grinding, washing, crack putty (FIG. 2) After the first installation in C) of the liquid mixture of n-cyanic acid ester-based polymerization resin and a hydraulic agent (Fig. 2A) or a liquid mixture of n-cyanic acid ester-based polymerization resin, a hydraulic agent and a hybrid powder (Fig. 2 B) to adopt Dual Step Coating (DSC method) to the second construction (see Figure 2).

The flooring construction method of the present invention simplifies the construction process by the Single / Dual Step Coating (SSC / DSC) method shows the effect of air shortening. That is, unlike the conventional complex construction process of epoxy, urethane and inorganic flooring material it is possible to simplify the construction process to shorten the air.

As described above, the flooring composition of the present invention may satisfy the quality standards of various surface finishes for flooring, while being environmentally friendly and odorless by adopting a water-soluble hydraulic agent, and can control the flooring curing time. In addition, the flooring construction method of the present invention can simplify the construction process to shorten the air.

1 is for explaining the construction using an environmentally friendly flooring composition according to an example of the present invention, it shows a case where the ground concrete is uniform (excellent leveling).
Figure 2 is for explaining the construction using an eco-friendly flooring composition according to an example of the present invention, it shows a case where the ground concrete is uneven (bad leveling).

Hereinafter, the present invention will be described in more detail based on the following examples. However, the following examples are only for illustrating the present invention, and the present invention is not limited to the following examples and may be changed to other embodiments equivalent to substitutions and equivalents without departing from the technical spirit of the present invention. Will be apparent to those of ordinary skill in the art.

< Example  1> SSC ( Single Step Coating Process composition and test body preparation

While injecting nitrogen into the reactor, an isopropyl cyanate (iC ₃ H ₇ OC≡N) monomer was reacted at 60 ± 5 ° C. under an acid catalyst for 2 hours to prepare an n-cyanate ester polymerization resin. Meanwhile, Glycolic acid (HOCH ₂ COOH) and 1,4-Butanediol were mixed in a weight ratio of 1: 1 to prepare a mixed solution, and then the mixed solution was mixed with water to prepare an aqueous solution hardener. The mixing ratio of the mixed solution and water was 1:13 by weight ratio.

Next, after pretreatment such as surface cleaning / cleaning / crack repair of the base concrete having a uniform flatness, the prepared n-cyanic acid ester-based polymer resin and a water-soluble hydrophobic agent are mixed and coated on the base concrete. Was prepared. The mixing ratio of the n-cyanic acid ester-based polymer resin and the water-soluble hydraulic curing agent was 1: 0.5 by weight.

< Example  2> SSC ( Single Step Coating Process composition and test body preparation

First, 55% calcium salt compound consisting of 35% by weight of calcium acetate, 7% by weight of calcium carbonate, 3% by weight of calcium hydroxide, 10% by weight of α-type hemihydrate gypsum, 20% by weight of orthosilicate, 15% by weight of processed silicate and 10% of clay A hybrid powder composed of 45 wt% of a silicate compound composed of% was prepared.

Next, the hybrid powder was mixed with a mixture of the n-cyanic acid ester-based polymer resin and the hydraulic agent prepared in Example 1. The mixing ratio of the n-cyanic acid ester-based polymerization resin, the hydraulic curing agent and the hybrid powder was 1: 0.5: 1 by weight.

Next, after pretreatment such as surface cleaning, washing, and crack repair, the base concrete having a uniform flatness is mixed with the mixed liquid of the n-cyanic acid ester-based polymer resin, a hardener, and a hybrid powder prepared above to the base concrete. Prepared.

Example 3 Preparation of Dual Step Coating (DSC) Process Composition and Test Body

The hybrid powder prepared in Example 2 and the hydraulic agent prepared in Example 1 were mixed to first coat the base concrete having a non-uniform base surface. The mixing ratio of the hybrid powder and the hydraulic agent was 1: 0.5 by weight ratio. Next, a test body was prepared by coating the hybrid powder and the water-curing agent on the upper surface firstly with the n-cyanic acid ester-based polymer resin and the water-soluble curing agent prepared in Example 1. The thickness of the layer formed by the primary coating was on average 3.1 mm.

< Comparative example  1 and Comparative example  2>

Comparative Example 1 was prepared by coating a concrete based on the epoxy resin-based flooring using a conventional volatile organic solvent according to the specifications, Comparative Example 2 by coating a urethane resin-based flooring using a conventional volatile organic solvent according to the specifications A test body was prepared.

< Test Example >

The test bodies according to Examples 1, 2, 3 and Comparative Examples 1, 2 were tested according to KS F 4937 [Surface Finish for Parking Floor]. Specifically, 1) impact resistance test, 2) adhesion performance test, 3) wheel load resistance performance test, 4) watertight performance test, and 5) pollutant release test were performed. The results are shown in Table 1 below.

As shown in Table 1, the compositions described in Examples 1, 2, and 3 of the present invention satisfy all five KS F 4937 [surface finishing materials for parking lot floors] test specifications. In particular, in terms of overall test performance, such as adhesion performance, lubrication load resistance performance, watertightness performance, and pollutant release performance, it was confirmed that it is very superior to the conventional epoxy resin (Comparative Example 1) or urethane resin (Comparative Example 2).

Although the present invention has been described with reference to the above-described embodiments and the accompanying drawings, other embodiments may be configured within the spirit and scope of the present invention. Therefore, the scope of the present invention is defined by the appended claims and equivalents thereof, and is not limited by the specific embodiments described herein.

Claims (9)

V) 100 parts by weight of a polymerized resin obtained by reacting an n-cyanate ester monomer with an acid catalyst; And
Ii) 20 to 1,200 parts by weight of a water based Hardening Agent in an aqueous solution consisting of 1 to 30% by weight of Glycolic acid (HOCH ₂ COOH) and a polyhydric alcohol, and 70 to 99% by weight of water; .
The method of claim 1,
The n-cyanate ester monomer is methyl cyanate (CH ₃ OC≡N), ethyl cyanate (C ₂ H ₅ OC≡N), isopropyl cyanate (iC ₃ H ₇ OC≡N), iso cyanate Eco-friendly flooring composition, characterized in that at least one member selected from the group consisting of butyl (iC ₄ H ₉ OC≡N) and phenyl cyanate (C ₆ H ₅ OC≡N).
The method of claim 1,
The polyhydric alcohol is at least one member selected from the group consisting of 1,4-Butanediol, Ethylene Glycol, Propylene Glycol, Diethylene Glycol and PTMG (Polytetramethylemeetherglycol) Eco-friendly flooring composition.
The method of claim 1,
The composition is eco-friendly flooring composition further comprises 20 to 1,600 parts by weight of a hybrid powder consisting of 30 to 80% by weight calcium salt compound and 20 to 70% by weight silicate compound based on 100 parts by weight of the polymerized resin.
The method of claim 4, wherein
The calcium salt compound is calcium acetate [Ca (CH ₃ COO) ₂ ], calcium nitrate, calcium carbonate, calcium hydroxide, calcium sulfate, α-CaSO ₄ · 1 / 2H ₂ O, β-type hemihydrate gypsum ( Eco-friendly flooring composition, characterized in that at least one selected from the group consisting of β-CaSO ₄ · 1 / 2H ₂ O), type II anhydrous gypsum (II-CaSO ₄ ) and back cement.
The method of claim 4, wherein
The silicate compound is at least one selected from the group consisting of orthosilicate, cyclosilicate, inosilicate, phyllosilicate and tektosilicate, feldspar, ocher and processed silicate. Eco-friendly flooring composition characterized in.
Iii) a base surface treatment step of arranging the base surface; And
Ii) mixing the n-cyanic acid ester-based polymer resin and the hydraulic agent of claim 1, and then coating the base surface with the mixed solution; flooring construction method using an eco-friendly flooring composition comprising a.
Iii) a base surface treatment step of arranging the base surface; And
Ii) mixing the n-cyanic acid ester-based polymer resin, the water hardener, and the hybrid powder of claim 4, and then coating the base surface with the mixed solution.
The method according to claim 7 or 8,
Prior to step ii)
Iii) a hybrid powder consisting of the hydraulic agent of claim 1 and 30 to 80% by weight of a calcium salt compound and 20 to 70% by weight of a silicate compound, and a pretreatment step of coating a base surface with the mixed solution; Flooring construction method using.

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