KR20020015080A - Compostion of resin for construction of floor of the building and a method using it - Google Patents

Abstract

PURPOSE: A resin composition for forming the bottom surface of a building and a method for forming the bottom surface of a building by using the composition are provided, to improve the strength of cement mortar and the resistance against chemicals, acid and abrasion of the surface. CONSTITUTION: The resin composition is an adhesive for an epoxy paint which is obtained by adding benzyl alcohol to a bisphenol A-type epoxy resin to dissolve it, and reacting it with diamines. The method comprises the steps of making a primer layer onto concrete; forming an epoxy paint layer onto the primer layer; forming the adhesive layer onto the epoxy paint layer by using the resin composition; forming a design onto the adhesive layer by using powdered limestone and chip; and forming the design protection layer onto the design by using a mixture of the resin composition and a bisphenol A-type epoxy resin.

Description

Resin composition for building floor surface and method for forming building floor using same {COMPOSTION OF RESIN FOR CONSTRUCTION OF FLOOR OF THE BUILDING AND A METHOD USING IT}

The present invention relates to a resin composition for forming a building floor surface and a method for forming a building floor surface using the same. More specifically, the present invention relates to a resin composition for coating a floor or a wall of a building, and a method for attaching stone powder, chips, and the like to form a surface layer thereon.

Background Art Conventionally, marble or artificial marble is attached to interiors, exteriors, and floors of buildings, or inorganic powders including pigments and minerals in back cement are mixed and polished to smooth surfaces.

However, the above-mentioned interior and exterior each have various problems. In other words, natural marble is almost impossible to extract due to resource depletion, and has recently relyed on imports, but its use has been rapidly decreasing recently due to rising import prices. Artificial marble is used as a substitute for it, but artificial marble is more expensive than natural marble depending on the type, and low-cost coarse is commercially available. The manufacturing method of these artificial marbles includes mineral powder and pigments in cement mortar about 10 years ago. Although it has been manufactured by mixing, various problems such as whitening of cement and poor durability due to scratches on the surface have occurred. It is known to manufacture artificial marble by combining additives such as, antibacterial agents and phosphors (reference, patent application 73-1504, copper 82-1504, copper 96-42378, copper 96-71482, 96- 72479, No. 97-8810, No. 97-42481, No. 97-54134, No. 97-59795, No. 97-63460, No. 97-66686, No. 97-78788, No. 97-81988 , Copper No. 98-3948, No. 98-7827 copper, copper No. 98-34310, etc.). However, most of these artificial marbles are manufactured by applying heat, pressure, temperature, etc. at the time of manufacture. At this time, if bubbles are not removed, the surface of the finished product tends to be dug, and the surface must be polished. There is a problem such as securing marketability. Moreover, since the artificial marble must be manufactured in a certain form, there are problems such as factory, warehouse, transportation, etc., and it is limited to having a certain form and a certain pattern, and additional molding work for attaching the artificial marble during construction This is required, and furthermore, there are disadvantages such as cutting artificial marble according to the size of the attachment surface.

In addition, after manufacturing Malta by mixing white cement, mineral crushed material and pigment on the floor of the building, constructing it on the floor and polishing it to form the bottom surface is poor in chemical resistance and durability and is damaged by small impacts. After 3 years have elapsed, the bottom surface is unpleasant and cannot be used as it is, and most of them use a flooring material (plastic sheet) or a carpet. These materials have been developed considerably recently, but the texture looks like natural marble, but compared with the real artificial marble or natural marble, it is confirmed that it is made of plastic. It is becoming the main cause of pollution.

In addition, mixing mineral powders such as stone with resin and applying it to exteriors or interiors of buildings, etc., makes it difficult to uniformly mix minerals and resins. There is no design meaning at all, but only an additional cost, and moreover, when treating the surface using most synthetic resins, there is a problem that often causes yellowing over time.

In order to solve the above problems, the present inventors apply a synthetic resin to a concrete floor or a floor surface such as plywood or iron plate slate, and then form an adhesive layer thereon, and then attach mineral crushed material and / or chips, and again. It has been found that the above problems can be solved by forming a surface layer having excellent physical properties such as wear resistance and fouling resistance thereon, and completed the present invention.

Hereinafter, the present invention will be described in detail.

Mineral crushed materials used in the present invention include mica, silica sand, five stones, feldspar, granite, dolomite, jade, elvan, artificial color silica sand, titanium oxide and the like, these are from 2 mm to 160 mesh, preferably 20 to 140 mesh Use crushed by The selection of these mineral debris is appropriately made in consideration of the chromaticity, pattern, and the like of the final surface.

In addition, unlike the conventional method in the present invention, a color chip is used. Such color chips are formed by mixing synthetic resin powders such as polyacrylates, polyvinylacetates, polyurethanes, etc. with pigments, melting them at high temperatures, and molding and injecting them into flakes at low temperatures. It may be made, but it can be produced by mixing various shapes. Examples of such chips include color flakes (registered trademark of COLDEC, The Netherlands).

Since such a color chip can be made in various colors, it is possible to select an appropriate amount of the appropriate color according to the color of the applied mineral, and mix it with the mineral crushed material.

Examples of the synthetic resin used in the present invention include polyurethane resins, polyacrylate resins, polyepoxy resins, and the like. Polyurethane-based resins are excellent in elasticity, polyacrylate-based resins are excellent in weatherability, and polyepoxy resins are excellent in adhesive strength and chemical resistance, and thus can be appropriately selected according to the requirements of the applied surface.

The mineral crushed material and the color chip may be used respectively, or may be mixed. The mixing ratio of these mineral crushed materials and color chips is not particularly limited, and may be used in combination as appropriate.

Hereinafter, the construction method of the surface layer using the mineral crushed material, color chips and synthetic resin will be described in detail.

The floor or wall of the building (hereafter referred to as floor only) is usually a cement mortar layer on the concrete foundation. It is also possible to directly apply a polyurethane resin, a polyacrylate resin, a polyepoxy resin or the like (hereinafter simply referred to as a "polymer resin") to the cement mortar layer, and attach a mixture of the mineral crushed material and the color chip thereon. However, since the adhesiveness is not satisfactory, it is not preferable. Therefore, preferably, a cement mortar layer is formed to smooth the surface of the concrete foundation, and a primer layer is formed thereon to improve adhesion. The polymer resin layer is formed on the primer layer using the above-described synthetic polymer resin. The polymer resin can be dissolved and used with a solvent, but the working environment caused by the solvent is deteriorated, so that the polymer resin is uniformly coated with a solvent. At this time, the thickness of the resin layer is not particularly limited, but is preferably 1 to 1.5 mm. If it is less than 1 mm, it may not be uniformly applied, and there is a drawback that the properties of the resin such as durability, chemical resistance, and elasticity are not sufficiently exhibited. If it is formed thicker than 1.5 mm, weather resistance, chemical resistance, and elasticity may be caused. Although the properties of the resin are exhibited satisfactorily in various aspects, such as, it is not economically desirable.

It is preferable to form an adhesive layer on the polymer resin layer. As the adhesive, those commonly used in the art may be used, but those which are the same as the polymer resin are preferably used. As an adhesive, it is preferable to manufacture and use an epoxy resin, a urethane resin, an acrylate resin, etc. as a base material, and to select such resin as the base resin has strong adhesive force with a base resin. In order to manufacture such a resin with an adhesive agent, it can dilute with an aliphatic alcohol, an aromatic alcohol, etc., and can mix and manufacture hardening | curing agents, such as diamine. As the dilution alcohol, aromatic alcohols such as benzyl alcohol and the like are particularly preferable. Moreover, diamines , such as IPDA (isoprone diamine) and MBDA , are mentioned as a hardening | curing agent.

In the case where the epoxy resin is used, when the epoxy resin is sufficiently dissolved in alcohol, the diamines are added to cause an exothermic reaction with the epoxy resin, and the mixture is cooled and stored after completion of the reaction.

Moreover, it is preferable to add silicone oil etc. to an epoxy resin separately from the said adhesive agent. Such antifoaming agents suppress bubbles that occur in the composition. If bubbles are generated in the composition, the physical properties of the coating film are sharply lowered, which is not preferable. Examples of such antifoaming agents include octyl alcohol, cyclohexanol, ethylene glycol, tributyl phosphate, silicone emulsion, 2-ethylhexyl alcohol, and the like. The amount of the antifoaming agent is not particularly limited, but is 0.1 to 0.5% by weight based on the precursor. Addition is preferred.

In addition, the adhesive of the present invention may be mixed with the adhesive to improve the effect of the surface coating.

In addition, you may add a well-known ultraviolet stabilizer.

Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited to these Examples.

Example 1 (Preparation of Curing Type Yellowless Epoxy Resin)

40 parts by weight of benzyl alcohol was added to 15 parts by weight of bisphenol A epoxy resin (EEw = 198, manufactured by Kukdo Chemical Co., Ltd.) while stirring, and 45 parts by weight of isophorone diamine (IPDA) were gradually dissolved after being completely dissolved. React by addition. At this time, since the temperature rises due to the exothermic reaction, the temperature in the reactor is maintained at 80 ° C. while being heated in the reactor, followed by stirring. After about 2 hours, after completion of the reaction, the reaction mixture was cooled to room temperature and filtered to prepare a yellowing resin (hereinafter, referred to as CQ # 200).

Example 2 (Preparation of Adhesive)

50 parts by weight of a yellowing-free epoxy resin prepared in Example 1 was added to 100 parts by weight of a bisphenol A epoxy resin (EEw = 198, manufactured by Kukdo Chemical Co., Ltd.) in a reactor with a stirrer, and 0.40 parts by weight of a silicone emulsion, 0.10 part by weight of beeswax wax was added and mixed uniformly to prepare an adhesive.

This was used for the adhesive layer and / or pattern protection layer mentioned later.

Example 3

A concrete specimen of 1 × 7 × 15 cm 3 was prepared, coated with a commercially available epoxy primer (manufactured by Daebo Paint Co., Ltd., trade name: Epoxy Primer), and dried at 20 ° C. for 10 hours. A solventless epoxy resin paint (manufactured by Daebo Paint Co., Ltd.) was coated thereon at 1.5 mm. After coating using the adhesive prepared in Example 2 thereon, a mineral crushed product of 8 to 160 mesh and a chip (manufactured by COLDEC, Netherlands) were attached thereto to form a shape and completely dried. It was again coated with an adhesive prepared in Example 2 to a thickness of about 0.5 mm.

The samples thus prepared were tested by the Korea Chemical Testing Institute to measure adhesion strength, abrasion resistance, acid resistance, and alkali resistance. The results are shown in Table 1 below.

Test Items Test result Test Methods Adhesion strength 22kgf / cm ² JISA 6909 Abrasion Resistance (H22.500g, 500 Times) 124.5mg ASTM D 4060 Acid resistance test (5% sulfuric acid solution × 168 hours) clear KSM 5307-96 (*) Alkali resistance test (5% sodium hydroxide solution x 168 hours) clear KSM 5307-96 (*)

As shown in the table, the fryer layer penetrates the known cement mortar layer to reinforce the strength of the cement mortar, and after the synthetic polymer resin layer is formed, the adhesive layer, the pattern forming layer, and the pattern protective layer of the present invention are formed. It is a useful invention which can improve the chemical resistance, such as acid resistance and alkali resistance, and is excellent in abrasion resistance, and can improve the building floor layer used by mixing back cement, stone powder, and pigment conventionally.

Claims (4)

An adhesive for epoxy paint, characterized by reacting diamines after adding and dissolving benzyl alcohol in bisphenol A epoxy resin. The adhesive according to claim 1, wherein the adhesive is mixed with a bisphenol A epoxy resin. The adhesive according to claim 2, wherein the adhesive is blended with bisphenol A epoxy resin in an amount of 2 times or more relative to the adhesive according to claim 1. After the primer layer is formed on the concrete, an epoxy paint resin layer is formed thereon, an adhesive according to claim 1 or 2 is formed, and a pattern is formed thereon using stone powder, chips, and the like. A method for forming a building flooring material comprising forming a patterned protective layer of a base material.