KR102476926B1 - Solvent-free type water soluble epoxy flooring - Google Patents

Abstract

Disclosed is a solvent-free, water-soluble epoxy flooring material having excellent mechanical strength during curing, excellent adhesion, permeability, abrasion resistance, water resistance, and chemical resistance, and excellent storability and anti-settling properties.
Solvent-free water-soluble epoxy flooring according to the present invention is a subject; and a curing agent, wherein the main agent includes bisphenol A diglycidyl ether and 1,4-butanediol diglycidyl ether, and the curing agent includes calcium carbonate, poly(oxypropylene)diamine, bisphenol A-bisphenol A diglycidyl ether polymers.

Description

Solvent-free water-soluble epoxy flooring {SOLVENT-FREE TYPE WATER SOLUBLE EPOXY FLOORING}

The present invention relates to a solvent-free water-soluble epoxy flooring material.

In general, floor materials are selected appropriately in consideration of dust prevention function, abrasion resistance, durability, and flame retardancy for the floor of a building. As such a floor finishing method, products made of various materials such as conventional epoxy and urethane coating, solventless epoxy or urethane and epoxy resin mortar are used.

In this regard, cement-based acrylic inorganic flooring materials and cement-based urethane inorganic flooring materials have been developed and used.

However, organic paints, which are commonly used in addition to inorganic flooring materials, are very vulnerable to fire, and their use is gradually limited, such as emitting toxic gases in case of fire.

In addition, all of the above conventional technologies are oil-based products containing VOCs (Volatile Organic Compounds), and a thinner must be diluted from 2 to 3% to 30 to 40% to improve workability during construction. Not only is it harmful to the environment, but it also causes environmental destruction.

On the other hand, inorganic flooring, which has recently been in the limelight, is recognized as an environmentally friendly product by supplementing the problems of existing organic paints, but the quality is unstable because the standard for the product has not yet been established. In addition, it uses excessive materials more than necessary, is expensive, and requires specialized construction personnel due to difficult construction.

An object of the present invention is to provide a solvent-free, water-soluble epoxy flooring having excellent mechanical strength during curing, adhesion, permeability, abrasion resistance, water resistance, and chemical resistance.

Another object of the present invention is to provide a solvent-free, water-soluble epoxy flooring material that is environmentally friendly and has excellent dust resistance, storability, and anti-settling properties.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

Solvent-free water-soluble epoxy flooring according to the present invention is a subject; and a curing agent, wherein the subject includes bisphenol A diglycidyl ether and 1,4-butanediol diglycidyl ether, and the curing agent includes calcium carbonate, poly(oxypropylene)diamine, bisphenol A-bisphenol A diglycidyl ether polymers.

The solvent-free water-soluble epoxy flooring material according to the present invention has excellent mechanical strength during curing, excellent adhesion, permeability, abrasion resistance, water resistance, and chemical resistance, and has a beautiful surface due to excellent gloss.

In addition, the solvent-free water-soluble epoxy flooring material is easy to work in an enclosed space and is environmentally friendly.

In addition, the solvent-free water-soluble epoxy flooring has excellent dust resistance.

In addition, the solvent-free water-soluble epoxy flooring has excellent storability and anti-settling properties.

In addition to the effects described above, specific effects of the present invention will be described together while explaining specific details for carrying out the present invention.

The above objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention. In describing the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

In addition, when a component is described as "connected", "coupled" or "connected" to another component, the components may be directly connected or connected to each other, but other components may be "interposed" between each component. ", or each component may be "connected", "coupled" or "connected" through other components.

Hereinafter, a non-solvent type water-soluble epoxy flooring material according to some embodiments of the present invention will be described.

The solvent-free water-soluble epoxy flooring material of the present invention is a flooring material that requires excellent mechanical properties, abrasion resistance, chemical resistance, and a beautiful surface, and is used in general factories, warehouses, underground parking lots, hospitals, nuclear power plants, laboratories, general offices, and corridors. can be used as

The solvent-free water-soluble epoxy flooring material of the present invention includes a main agent and a curing agent.

The subject includes bisphenol A diglycidyl ether, 1,4-butanediol diglycidyl ether.

Bisphenol A diglycidyl ether is the main component of the main material and has a major effect on physical properties. Bisphenol A diglycidyl ether is also called 2,2''-((1-METHYLETHYLIDENE)BIS(4,1-PHENYLENEOXYMETHYLENE))BIS-OXIRANE, CAS number 1675-54-3.

1,4-Butanedioldiglycidyl ether is also called 2,2'-(1,4-butanediylbis(oxymethylene))bis-oxirane and has CAS number 2425-79-8.

The main agent contains 20 to 40 parts by weight of 1,4-butanediol diglycidyl ether based on 100 parts by weight of bisphenol A diglycidyl ether.

When the content of 1,4-butanediol diglycidyl ether exceeds 20 to 40 parts by weight, it may be difficult to exhibit required physical properties during curing.

The curing agent includes calcium carbonate, poly(oxypropylene)diamine, bisphenol A-bisphenol A diglycidyl ether polymer.

Calcium carbonate is preferably added to the curing agent to prevent precipitation of the epoxy flooring material.

Specifically, calcium carbonate includes calcium carbonate having different diameters for storability and precipitation prevention.

The calcium carbonate includes first calcium carbonate having a diameter of D1, second calcium carbonate having a diameter of D2, and tertiary calcium carbonate having a diameter of D3.

In this case, when comparing the diameters, D1 < D2 < D3 may be satisfied.

For example, D1 may be 0.1 μm to 3 μm, D2 may be 4 μm to 8 μm, and D3 may be 9 μm to 15 μm.

When the content of the first calcium carbonate is A, the content of the second calcium carbonate is B, and the content of the third calcium carbonate is C, A < B < C may be satisfied.

For example, the calcium carbonate may include 20 to 50 parts by weight of the second calcium carbonate and 0.1 to 10 parts by weight of the first calcium carbonate, based on 100 parts by weight of the third calcium carbonate.

As the contents of the first calcium carbonate, the second calcium carbonate, and the third calcium carbonate are satisfied, it may be advantageous to secure mechanical strength as well as hardenability and water resistance.

Poly(oxypropylene)diamine has the CAS number 9046-10-0.

Bisphenol A-Bisphenol A diglycidyl ether polymer has CAS number 25036-25-3.

The curing agent includes 15 to 40 parts by weight of poly(oxypropylene)diamine and 1 to 15 parts by weight of bisphenol A-bisphenol A diglycidyl ether polymer, based on 100 parts by weight of calcium carbonate.

When the content of poly(oxypropylene)diamine and bisphenol A-bisphenol A diglycidyl ether polymer is out of the above range, it may be difficult to exhibit required physical properties during curing.

The viscosity of the subject may be 1000 to 1500 cps at 25 ° C, and the specific gravity may be 1.0 to 1.2.

The curing agent may have a viscosity of 1500 to 3000cps at 25° C. and a specific gravity of 1.3 to 1.4.

The curing agent may further include 2,4,6-tris(dimethylaminomethyl)phenol as a curing accelerator. The 2,4,6-tris(dimethylaminomethyl)phenol is included in the curing agent to adjust the curing time.

The curing agent may further include 0.1 to 15 parts by weight of 2,4,6-tris(dimethylaminomethyl)phenol based on 100 parts by weight of calcium carbonate.

When the content of the 2,4,6-tris(dimethylaminomethyl)phenol exceeds 0.1 to 15 parts by weight, it is difficult to control the curing time and pot life, and workability may be deteriorated.

Additionally, the curing agent may further include a pigment.

A pigment may be used without limitation as long as it is a raw material used to express color.

The solvent-free water-soluble epoxy flooring resin of the present invention: the curing agent is included in an equivalent ratio of 1: 0.8 to 1: 1.2. At this time, the curing agent refers to a curing agent that does not contain a calcium carbonate filler.

And the above subject: the curing agent is included in a weight ratio of 1: 1 to 1: 3.

As the curing agent contains a filler called calcium carbonate, the content of the curing agent may be greater than that of the main material. Depending on the ratio of the curing agent, physical properties may change during hardening of the flooring material, and excellent physical properties can be secured in the range of 1: 1 to 1: 3.

The solvent-free water-soluble epoxy flooring material according to the present invention can be prepared as follows.

First, bisphenol A diglycidyl ether and 1,4-butanediol diglycidyl ether are mixed in the suggested range to prepare a subject.

In addition, a curing agent is prepared by mixing calcium carbonate, poly(oxypropylene)diamine, and bisphenol A-bisphenol A diglycidyl ether polymer within the suggested range.

A non-solvent type water-soluble epoxy flooring material may be prepared by mixing the prepared main material and the curing agent in a weight ratio.

The pot life using the solvent-free water-soluble epoxy flooring material may be approximately 10 to 60 minutes, the touch drying time may be 4 to 5 hours, and the curing time may be at least 24 hours or more.

In addition, the cured product of the solvent-free water-soluble epoxy flooring material may exhibit a shore hardness of D 70 or more.

As such, the solvent-free water-soluble epoxy flooring material according to the present invention has excellent mechanical strength during curing, adhesion, permeability, abrasion resistance, It has excellent water resistance and chemical resistance.

In addition, the solvent-free water-soluble epoxy flooring material is environmentally friendly and has excellent dust resistance, storability, and anti-settling properties.

As described above, a specific embodiment of the solvent-free water-soluble epoxy flooring material is as follows.

1. Manufacturing of solvent-free water-soluble epoxy flooring

Example 1

A main agent was prepared by mixing 20 parts by weight of 1,4-butanediol diglycidyl ether with respect to 100 parts by weight of bisphenol A diglycidyl ether.

A curing agent was prepared by mixing 15 parts by weight of poly(oxypropylene)diamine and 5 parts by weight of bisphenol A-bisphenol A diglycidyl ether polymer with respect to 100 parts by weight of calcium carbonate.

The calcium carbonate is 5 parts by weight of the first calcium carbonate having a diameter of 0.1 to 3 μm and 20 parts by weight of the second calcium carbonate having a diameter of 4 to 8 μm, based on 100 parts by weight of the third calcium carbonate having a diameter of 9 to 15 μm. included.

A non-solvent type water-soluble epoxy flooring material was prepared by mixing the prepared main material and the curing agent in a weight ratio of 1:2.

Example 2

A solvent-free water-soluble epoxy flooring material was prepared under the same conditions as in Example 1, except that 40 parts by weight of 1,4-butanediol diglycidyl ether was mixed in the main material.

Example 3

A non-solvent type water-soluble epoxy flooring material was prepared under the same conditions as in Example 1, except that 40 parts by weight of poly(oxypropylene)diamine and 15 parts by weight of bisphenol A-bisphenol A diglycidyl ether polymer were mixed in the curing agent.

Example 4

A non-solvent type water-soluble epoxy flooring material was prepared under the same conditions as in Example 1, except that the curing agent further included 10 parts by weight of 2,4,6-tris(dimethylaminomethyl)phenol based on 100 parts by weight of calcium carbonate.

Comparative Example 1

A solvent-free water-soluble epoxy flooring material was prepared under the same conditions as in Example 1, except that 50 parts by weight of 1,4-butanediol diglycidyl ether was mixed in the main material.

Comparative Example 2

A non-solvent type water-soluble epoxy flooring material was prepared under the same conditions as in Example 1, except that 50 parts by weight of poly(oxypropylene)diamine and 20 parts by weight of bisphenol A-bisphenol A diglycidyl ether polymer were mixed in the curing agent.

Comparative Example 3

A non-solvent type water-soluble epoxy flooring material was prepared under the same conditions as in Example 1, except that only calcium carbonate having a diameter of 9 to 15 μm was included in the curing agent.

Comparative Example 4

A non-solvent type water-soluble epoxy flooring material was prepared under the same conditions as in Example 1, except that the main material and the curing agent were mixed in a weight ratio of 1:0.5.

2. Physical property evaluation method and result

Physical properties were evaluated as follows using the non-solvent type water-soluble epoxy flooring materials prepared in Examples 1 to 4 and Comparative Examples 1 to 4.

Hardness (Sh.D) was measured in accordance with KSM ISO 868, compressive strength (N/mm ² ), bending strength (N/mm ² ), impact strength (J/m), tensile strength (N/mm ² ) was measured according to KSM 3015.

[Table 1]

Referring to Table 1, the cured products of the solvent-free water-soluble epoxy flooring materials Examples 1 to 4 according to the present invention exhibit excellent mechanical strength.

The compressive strength is 100~120N/mm ² , the bending strength is 50~60N/mm ² , the impact strength is 17~30 J/m, and the tensile strength is 36~50N/mm ² .

Examples 1 to 4 exhibit physical properties equal to or higher than those of existing oil-based flooring materials, and can be used as eco-friendly products because they do not generate volatile organic compounds.

Therefore, in order to exhibit excellent mechanical strength and be used in an environmentally friendly manner, a subject containing bisphenol A diglycidyl ether and 1,4-butanediol diglycidyl ether, calcium carbonate, poly(oxypropylene)diamine, and bisphenol A - It is preferable to include a curing agent comprising a bisphenol A diglycidyl ether polymer.

As described above, the present invention has been described with reference to the exemplified embodiments, but the present invention is not limited by the embodiments disclosed herein, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is self-evident that this can be done. In addition, although the operational effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the corresponding configuration should also be recognized.

Claims (6)

Subject: Contains a curing agent in a weight ratio of 1: 1 to 1: 3,
The main agent contains 20 to 40 parts by weight of 1,4-butanediol diglycidyl ether based on 100 parts by weight of bisphenol A diglycidyl ether,
The curing agent includes 15 to 40 parts by weight of poly(oxypropylene)diamine and 1 to 15 parts by weight of bisphenol A-bisphenol A diglycidyl ether polymer, based on 100 parts by weight of calcium carbonate, and 2,4,6-tris ( Further comprising 0.1 to 15 parts by weight of dimethylaminomethyl) phenol,
The calcium carbonate includes first calcium carbonate having a diameter of 0.1 to 3 μm, second calcium carbonate having a diameter of 4 to 8 μm, and tertiary calcium carbonate having a diameter of 9 to 15 μm, and the third calcium carbonate A non-solvent type water-soluble epoxy flooring material containing 0.1 to 10 parts by weight of the first calcium carbonate and 20 to 50 parts by weight of the second calcium carbonate, based on 100 parts by weight.
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