KR100575040B1 - Two-component type water-soluble adhesive composition for korean under-floor heating floor - Google Patents

Abstract

The present invention relates to a two-component aqueous adhesive composition for ondol flooring, and in particular, contains a rubber latex or emulsion resin, a heat resistance enhancer, an aqueous OH group-containing polymer aqueous solution or emulsion, an inorganic filler, a thixotropic agent, and water and an isocyanate compound. It relates to a two-component aqueous adhesive composition for ondol floor containing a curing agent to be.

The two-component aqueous adhesive composition for ondol flooring of the present invention does not use formaldehyde and organic solvents that caused environmental destruction due to toxic release, ozone depletion, flammability, fluorine-containing compounds, etc. It is excellent in heat resistance, water resistance, and water resistance of hot water even at room temperature or warming during floorboard manufacturing and ondol flooring, and has excellent adhesiveness and workability.

Water-based adhesive, Ondol floor, Environment-friendly, Human-friendly

Description

2-part aqueous adhesive composition for ondol floor {TWO-COMPONENT TYPE WATER-SOLUBLE ADHESIVE COMPOSITION FOR KOREAN UNDER-FLOOR HEATING FLOOR}

The present invention relates to a two-component aqueous adhesive composition for ondol flooring, and more particularly, it is environmentally friendly because it does not use formaldehyde and organic solvents, which caused environmental destruction due to toxic release, ozone depletion, flammability, and fluorine-containing compounds. The present invention relates to a two-component aqueous adhesive composition for ondol flooring, which is not only human-friendly but also excellent in heat resistance, water resistance, and hot water resistance at room temperature or warming during the production of ondol flooring and construction of ondol flooring. .

Mankind has achieved great results as a result of efforts to improve the quality of life, but the environmental pollution that results from it poses a serious threat to the quality of life. Among them are volatile organic compounds (VOCs) and hazardous air pollutants (HAPs), and reducing them is an important policy tool.

Volatile organic compounds in Korea are "petrochemical products, organic solvents and other substances with a laid vapor pressure of more than 10.3 kilopascals (or 1.5 psia) among hydrocarbons, which the Minister of Environment announces in consultation with the head of the relevant central administrative agency. Article 39 (1) of the Enforcement Decree, and currently regulated substances include 37 petrochemicals, organic solvents and other substances such as volatile benzene, toluene and gasoline.

Separately, the Indoor Air Pollution Prevention Act was enacted and implemented. Indoor air pollution is caused by chemicals such as formaldehyde and organic solvents emitted from building materials and finishing materials during airtightening and thermal insulation of buildings, and headaches and respiratory diseases caused by Sikhaus are caused. Syndrome, a chemical hypersensitivity disease, causing a disease caused by indoor air pollution is a major social problem.

Since the 1970s, it has been known that formaldehyde released from plywood, boards and furniture and housing made of formaldehyde-based thermosetting adhesives such as urea resins is harmful to the human body. Many experiments have been carried out on non-formalin-based wood adhesives, but such non-formalin-based resins include modified vinyl acetate emulsions such as catalytic curing, isobutene-maleic anhydride resins (α-olefins), or aqueous vinyl urethane adhesives. There is this. In this context, the newly developed aqueous vinyl urethane adhesive has been developed into many wood and wood materials adhesives due to its properties and ease of use.

Conventional water-based vinyl urethane adhesives have been developed and used as eco-friendly adhesives having heat-resistance properties comparable to thermosetting resorcinol resin adhesives in the manufacture of aggregated wood, mainly in Southeast Asia. When used as an adhesive for ondol floor, which is limited and required for domestic characteristics, improvements in properties such as heat resistance, water resistance, and hot water resistance, and adhesion to various adherends are required.

In order to solve the problems of the prior art as described above, the present invention does not use formaldehyde and organic solvents that caused environmental destruction due to toxic emission, ozone depletion, flammability, fluorine-containing compounds, environmentally friendly, construction or construction It is easy for workers to work without restraining the occurrence of severe chemical odor afterwards, and when living in a building constructed by tenants, they can live comfortably without feeling unpleasant like piercing their nose. It is an object to provide a two-component aqueous adhesive composition for ondol flooring.

Another object of the present invention is not only environmentally friendly and human-friendly, but also at the same time when applied to ondol flooring two-component aqueous adhesive composition for ondol flooring that can exhibit excellent adhesion, heat resistance, water resistance, hot water resistance, etc. To provide.

Another object of the present invention may exhibit excellent adhesive strength, heat resistance, water resistance, hot water resistance, etc., even when applied to ondol flooring at room temperature or warming, and various coatings such as ondol floorboards, PVC, plastic plates, cement floors, and the like. It is to provide a two-component aqueous adhesive composition for ondol floor which can exhibit excellent adhesion to ash.

It is another object of the present invention not only to have fluidity and flowability suitable for spreader workability in the manufacture of ondol floorboards, but also to have permeability and thixotropy suitable for variations in plywood variation and absorbency, and at the same time, to hera workability during ondol flooring. It is to provide a two-component aqueous adhesive composition for ondol flooring that has a suitable coatability, bone texture, and high viscosity and is excellent in pot life, adhesion, and heat resistance.

In order to achieve the above object, the present invention is a two-component aqueous adhesive composition for ondol floor,

a) i) 20 to 100 parts by weight of rubber latex or emulsion resin;

  Ii) 0.1 to 1 parts by weight of heat resistance enhancer;

  Iii) 5 to 50 parts by weight of an aqueous OH group-containing polymer solution or emulsion;

  Iii) 5 to 100 parts by weight of an inorganic filler;

  V) 1 to 20 parts by weight of thixotropic agent; And

  Iii) 1 to 50 parts by weight of water

  Subject containing; And

b) hardeners containing isocyanate compounds

It provides a two-component aqueous adhesive composition for ondol flooring containing 10: 0.5 to 2.0 by weight.

Hereinafter, the present invention will be described in detail.

The two-component aqueous adhesive composition for ondol flooring of the present invention comprises a rubber latex or emulsion resin, a heat resistance enhancer, an aqueous OH group-containing polymer aqueous solution or emulsion, an inorganic filler, a thixotropic agent, and a water-containing hardener containing an isocyanate compound. It is characterized in that the mixture is 0.5 to 2.0 weight ratio, the aqueous adhesive composition is environmentally friendly and human-friendly, do not use formaldehyde and organic solvents, excellent heat resistance at room temperature or warming during ondol flooring manufacturing and construction , Water resistance, hot water resistance, adhesiveness, and workability can be exhibited.

The rubber latex or emulsion resin of a) iii) used in the subject of the aqueous adhesive composition of the present invention is used as the main component in the subject.

The rubber latex is chloroprene rubber (CR), styrene-butadiene rubber (styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (acrylo nitrile butadiene (NBR), methyl methacrylate-butadiene rubber (methyl methacrylate) butadiene, MBR), polybutadiene rubber (polybutadiene, BR), butyl rubber and the like can be used.

It is preferable that the emulsion resin is in an emulsified state containing 20 to 60% of water by emulsion polymerization by adding an emulsifier to water.

Resin used in the emulsion resin is ethylene vinyl acetate (ethylene vinylacetate, EVA), polyvinyl chloride (polyvinylchloride), water-soluble acrylic resin, polyvinylacetate (PVAC), polybutadiene, polyvinylidene chloride, or polyurethane ( polyurethane, PU) and the like, and particularly, in the case of ethylene vinyl acetate, the cohesive force is strong, so that the strength of the adhesive composition can be maintained to a certain degree, which is more effective.

The rubber latex or emulsion resin is preferably contained in the main body of 20 to 100 parts by weight. When the content is within the above range, the cohesive force is given to the adhesive composition to maintain the strength of the adhesive composition in an appropriate range, thereby preventing warpage of floorboards that may occur during operation, thereby improving workability.

The heat resistance enhancer of a) ii) used in the subject matter of the aqueous adhesive composition of the present invention functions to enhance heat resistance to the aqueous adhesive composition.

The heat resistance enhancer may be a water-soluble urethane resin, water-soluble epoxy resin, silane resin, polybutadiene-based modified polymer, fluorine-modified polymer, fatty acid-modified polymer, modified polyphenylene oxide (modified PPO), and the like, in particular It is preferable to use a water-soluble urethane resin or a water-soluble epoxy resin.

In particular, the heat resistance enhancer bonds the first adhered surface of the plywood or medium density fiber board (MDF) with less heat resistance and the second adhered surface of the high pressure melamin sheet (HPM) or veneer, or When the cement floor is bonded, it is preferable to contain a large amount in order to improve the heat resistance, and when the PVC plate having excellent heat resistance is used as the adhered surface, it may be contained in a small amount.

The heat resistance enhancer is preferably included in the amount of 0.1 to 1 parts by weight. When the content is in the above range, the adhesive force is excellent, in particular, there is an effect to significantly improve the heat resistance in the heated floor floor.

The OH group-containing high molecular aqueous solution or emulsion of a) iii) used in the subject of the aqueous adhesive composition of the present invention can use all compounds containing conventional OH groups used in the art, in particular, starch, polyvinyl alcohol (polyvinyl alcohol, PVA), carboxyl methyl cellulose (CMC), protein or polyvinyl acetate (polyvinyl acetate, PVAc) and the like are preferably used.

The OH group-containing polymer is preferably contained in 5 to 50 parts by weight in the subject. When the content is within the above range, there is an effect of further improving the heat resistance, hot water resistance, and adhesion of the aqueous adhesive.

The inorganic filler of a) iii), which is used in the subject of the aqueous adhesive composition of the present invention, adjusts the viscosity of the adhesive to reduce shrinkage during curing to complement workability, reduce costs, and improve the heat resistance and durability of the adhesive. To act.

The inorganic filler may be used by changing the type and amount according to the material and the type and amount of the resin to be used, in particular, light coal, such as calcium carbonate (CaCO ₃ ), calcium sulfide, barium sulfide, back clay , Clays such as Dixclay, or sulfur clay, diatomaceous earth such as ash, or silica (SiO ₂ ) and the like, and preferably, light coals such as calcium carbonate (CaCO ₃ ), calcium sulfide, or barium sulfide Is to use

The inorganic filler is preferably included in 5 to 100 parts by weight on the subject. When the content is in the above range, it is possible to effectively control the viscosity of the adhesive to significantly reduce the shrinkage during curing, and has the effect of significantly improving the heat resistance and water resistance of the adhesive.

The axiii) thixotropic agent (separation inhibitor) used in the subject matter of the two-part aqueous adhesive composition of the present invention serves to improve workability such as pot life by inhibiting separation of the main body and the curing agent.

The thixotropic agent may be silica, acrylic copolymer, urethane, cellulose or the like.

The thixotropic agent is preferably included in the amount of 1 to 20 parts by weight. When the content is in the above range, there is an effect of effectively inhibiting the separation of the main agent and the curing agent of the adhesive to improve the workability.

The water of a) iii) used in the subject matter of the two-part aqueous adhesive composition of the present invention is preferably included in the amount of 1 to 50 parts by weight.

The water is used as a solvent in the two-component aqueous adhesive composition, and by using the water as a solvent to solve the problem of environmental damage caused by the use of the organic solvent, not only environmentally friendly, severe chemical smell during construction or after construction It is possible to improve the work efficiency by improving the work efficiency of the worker by suppressing the occurrence of, and when the tenants move into the constructed building, there is an advantage of living comfortably without feeling the unpleasant odor of the nose.

The subject of a) consisting of the above components are nonionic and anionic surfactants, non-silicone antifoaming agents, preservatives, PVC adhesive enhancers, drying retardants, ceramics, Additives such as dispersants, stabilizers, leveling agents, gas absorbers, moisture absorbers, or catalysts may be further included.

The surfactant may be an ethylene oxide nonionic surfactant, anionic surfactant, carboxylic acid salt, and the like, and the antifoaming agent may be a non-silicone, such as a metal soap system. PVC penetrants are recommended.

The main ingredient of a) including the above components is 45 to 61% by weight of solid content, in particular 45 to 61% by weight in the manufacture of ondol flooring, and 45 to 53% by weight in the construction of ondol floor.

In addition, the viscosity of the subject matter of the present invention is measured by a Brookfield type viscometer at 25 ℃ 120-400 Pa.s (PS), especially 120-150 Pa.s in the manufacture of ondol floor, 300-400 Pa in the construction of ondol floor is preferably .s. When the viscosity is in the above range, it is possible to improve spreader workability, hera workability, etc. during the production of ondol flooring and the construction of ondol floorboards.

The isocyanate compound of b) used in the curing agent of the aqueous adhesive composition of the present invention has excellent solubility in water, and the curing agent may be uniformly mixed with the main body to shorten the curing time by maintaining a suitable viscosity and hardness, and the main and curing agent Prolongs pot life during mixing, which significantly improves workability.

It is preferable that the said isocyanate compound contains 25 to 35% of NCO groups.

The isocyanate compound is preferably a compound containing two or more isocyanate groups in one molecule, in particular, toluen-diisocyanate (TDI), hydrogenated TDI, trimethyl propane-TDI, triphenylmethane -Triisocyanate (tripehnylmethane-triisocyanate (TTI)), diphenylmethane-4,4-diisocyanate (dipehenyl methane-4,4-diisocianate, MDI), hydrogenated MDI, or hexanemethylene-diisocyanate (HDI) It is preferable to use an isocyanate compound, and more preferably to use a isocyanate compound containing a blocking agent.

The curing agent containing such an isocyanate compound may further include a blocking agent.

The blocking agent may be a compound having an active hydrogen, such as alcohols (alcol), oximes (amines), amines (amine), amides (aminde), or lactam (lactam).

The blocking agent is preferably included in an amount of 1 to 30 parts by weight with respect to 100 parts by weight of the curing agent, when the content is in the above range has the effect of obtaining an adhesive composition of a suitable viscosity, pot life when mixing the main agent and the curing agent It can significantly improve workability by prolonging pot life.

The final performance varies depending on the a) main ingredient and b) the amount of the curing agent, but even if the amount of curing agent is small, the state adhesive strength is obtained, but the water resistance is insufficient, and when the amount of the curing agent is high, the viscosity increases in a short time and the pot life This shortens but improves its performance. In addition, since the water-based adhesive agent of the present invention is a crosslinking reaction type adhesive, the viscosity is gradually increased after the crosslinking agent is mixed and foaming occurs, and after a long time, the adhesive strength is also lowered. The thickening rate of the after-products is proportional to the amount of crosslinking agent, which requires special attention in summer use.

Therefore, it is preferable to mix the subject matter and hardening | curing agent of this invention in the weight ratio of 10: 0.5-2.0. Particularly, when the aqueous adhesive composition of the present invention is used for the production of ondol flooring, it is preferable to mix the main agent: the curing agent in a weight ratio of 10: 1 to 2.0. It is preferable to mix by weight ratio of.

The main agent and the curing agent are directly added and mixed with a curing agent, which is an isocyanate compound, in the aqueous polymer solution of the main body as shown in Scheme 1 below to form a macromolecule by branching linear molecules in the main body into a plurality of resorcinol resins which were not found in general aqueous adhesives. It will have a water resistance and heat resistance equivalent to.

Scheme 1

The water-based adhesive agent of the present invention is prepared or deposited on the flooring laminate is made of plywood, medium density fiber board (MDF), or PB (particle board) and melamine impregnated plate (HPM), veneer, or PVC plate It can be applied to all floors with plywood or PVC plates and cement floors.The above water-based adhesive can be applied to the floors of 50 ~ 300 g / m2 for the ondol floors, and for the floors with cement floors. It is preferable to apply | coat to about 3-4 kg / 3.3 m <2> (per square). In addition, for the production of ondol floorboards, it is possible to prepare the adhesives immediately after 50 minutes after applying the adhesive and to cure them for at least 24 hours after pressing for 30 to 60 minutes. It can be constructed by a method of assembling and bonding, and in particular, it is possible to assemble and bond the floorboard immediately after application of the water-based adhesive, thereby improving workability.

The two-component aqueous adhesive composition for ondol floor according to the present invention is environmentally friendly, does not use formaldehyde and organic solvents that caused environmental destruction due to toxic release, ozone depletion, flammability, fluorine-containing compounds, etc. It is easy for workers to work without restraining the occurrence of severe chemical odor, and when living in a building constructed by the tenants, they can live comfortably without feeling the discomfort like piercing their nose. There is this. In addition, when applied to ondol flooring, it exhibits excellent adhesion, heat resistance, water resistance, and hot water resistance even at room temperature or warming, and exhibits excellent adhesion to various adherends such as ondol floorboards, PVC, plastic plates, and cement floors. Can be. In addition, it has fluidity and flowability suitable for spreader workability when manufacturing ondol flooring, as well as permeability and thixotropy suitable for variation of plywood and difference in absorbency. , Has osteogenicity, and high viscosity, and has the advantage of excellent pot life, adhesion, and heat resistance.

Hereinafter, preferred examples are provided to help understanding of the present invention, but the following examples are merely to illustrate the present invention, and the scope of the present invention is not limited to the following examples.

EXAMPLE

Example 1

Chloroprene rubber latex (C-74, Bayer) 70 parts by weight, urethane crosslinking agent 1 part by weight, polyvinyl alcohol solution (PVA F-17, P-05, Dongyang Steel Chemical) 10 parts by weight, carboxyl methyl cellulose ( carboxyl methyl cellulose (CMC) 10 parts by weight, CaCO ₃ 15 parts by weight, silica (SE-1) 1 part by weight, ethylene oxide surfactant (NP-1018, Southeast Synthesis) 1 part by weight, metal soap-based antifoaming agent (NXZ, 1 part by weight of Sannovcosa) and 1 part by weight of preservative, mixed with water such that the final solid content of the subject matter is 48-53% by weight, and the viscosity is 120-150 Pa.s (measured at 25 ° C). Subject was prepared. Then, a curing agent containing an isocyanate compound containing 30 to 33% of NCO groups was prepared. The two-part aqueous adhesive composition was prepared by uniformly mixing the prepared main ingredient and the curing agent in a ratio of 10: 1.5.

Example 2

50 parts by weight of styrene-butadiene rubber latex (KSL-103, Kumho Chemical), 1 part by weight of epoxy crosslinking agent, 50 parts by weight of vinyl acetate resin emulsion, 20 parts by weight of CaCO _3, 2 parts by weight of silica (SE-1), ethylene oxide type 1 part by weight of a surfactant (NP-1018, Southeast Synthetic), 2 parts by weight of a glycol-based drying retardant, and 1 part by weight of a metal soap-based antifoaming agent (NXZ, Sanofkosa), wherein the final solid content of the subject is 48 Water was mixed to obtain ˜53 wt. Then, a curing agent containing an isocyanate compound containing 30 to 33% of NCO groups was prepared. The two-component aqueous adhesive composition was prepared by uniformly mixing the prepared main ingredient and the curing agent in a ratio of 10: 0.8.

Example 3

70 parts by weight of an acrylic resin emulsion (self-synthesis), 1 part by weight of a silane crosslinking agent, carboxyl methyl cellulose (CMC), 20 parts by weight of CaCO ₃ , 10 parts by weight of silica (SE-1), ethylene oxide 1 part by weight of the surfactant (NP1018, Southeast Synthetic), 2 parts by weight of the glycol-based drying retardant, and 1 part by weight of the metal soap-based antifoaming agent (NXZ, Sanofko Corp.), wherein the final solid content of the subject is 48 to Water was mixed to 53 wt% to prepare a subject having a viscosity of 120-150 Pa · s (measured at 25 ° C.). Then, a curing agent containing an isocyanate compound containing 30 to 33% of NCO groups was prepared. The two-component aqueous adhesive composition was prepared by uniformly mixing the prepared main ingredient and the curing agent in a ratio of 10: 0.8.

Example 4

70 parts by weight of acrylonitrile-butadiene rubber latex (5151, Nippon jeon), 1 part by weight of epoxy crosslinking agent, 20 parts by weight of polyvinyl alcohol solution (PVA F-17, P-05, Dongyang Steel Chemical), 50 parts by weight of CaCO ₃ Parts, 10 parts by weight of silica (SE-1), 1 part by weight of carboxylic acid salt (44S, Sanofko Corp.), 2 parts by weight of a glycol-based drying retardant, and 1 weight of a metal soap-based antifoaming agent (NXZ, Sanofko Corp.) The portions were mixed and water was mixed therein to give a final solids content of 48-53 wt% of the subject, to prepare a subject having a viscosity of 300-400 Pa · s (measured at 25 ° C.). Then, an isocyanate compound containing 30 to 33% of NCO groups was prepared by mixing with a blocking agent to prepare a curing agent. The prepared main ingredient and the curing agent were uniformly mixed in a ratio of 10: 0.8 to prepare a two-part aqueous adhesive composition.

Comparative Example 1

Resorcinol resin, which is a formaldehyde-based resin, was used.

Comparative Example 2

KR-560 (Koyo), an aqueous polymeric isocyanate adhesive, was used.

Comparative Example 3

1984 (Casconobel), an aqueous polymeric isocyanate adhesive, was used.

Comparative Example 4

SL-460 (National starch), an aqueous polymeric isocyanate adhesive, was used.

Using the adhesive of Examples 1 to 4 and Comparative Examples 1 to 4 was measured according to the species according to DIN EN 204, the results are shown in Table 1 and Table 2.

division Rubber wood Mengkulang Meranti Nyatoh Agathis Example 1 Comparative Example 1 Example 1 Comparative Example 1 Example 1 Comparative Example 1 Example 1 Comparative Example 1 Example 1 Comparative Example 1 D4-7 198.7 176.2 201.2 197.0 187.1 190.5 198.0 186.8 203.1 201.9 D4-8 69.4 62.5 70.8 67.3 68.8 70.2 65.4 66.3 74.3 69.8 D4-9 85.2 79.4 63.7 54.5 72.5 75.0 72.4 68.9 78.9 69.9 D4-10 101.2 98.9 120.3 111.7 99.0 87.6 103.2 100.7 130.3 121.8

division Example Comparative example One 2 3 4 2 3 4 Rubber wood 1 time 85.2 84.0 49.4 74.4 67.7 44.4 56.7 Episode 2 80.4 82.5 44.6 52.6 54.7 48.1 52.5 Mengkulang 1 time 63.7 78.5 55.8 66.8 53.8 49.3 53.2 Episode 2 64.5 78.4 60.4 60.3 36.9 44.8 45.7 Meranti 1 time 72.5 74.3 57.1 70.7 71.8 58.6 62.3 Episode 2 68.9 67.2 58.9 76.1 63.1 68.6 66.7 Nyatoh 1 time 72.4 85.9 55.2 64.6 83.1 74.1 79.1 Episode 2 70.9 81.3 71.0 80.2 76.2 63.1 70.0 Agathis 1 time 78.9 77.4 72.0 86.1 85.8 70.3 69.4

Through the above Table 1 and Table 2, the two-component aqueous adhesive for ondol flooring prepared according to the present invention, the resorcinol resin of the formaldehyde-based resin of Comparative Example 1 and the conventional aqueous polymer isocyanate of Comparative Examples 2 to 4 according to the species It can be seen that the adhesive strength is equivalent to that of the adhesive.

In addition, the odor, heat resistance, water resistance, hot water resistance, and workability were measured using the adhesives of Examples 1 to 4 and Comparative Examples 1 to 4, and the results are shown in Table 3 below. At this time, 5 points for no smell at all, 3 points for slightly flying, and 1 point for severe flying were repeated 10 times, and the average value was described. In addition, workability was divided into two types of workability during ondol floor manufacturing and construction, and the average value was repeated 10 times with 5 points of excellent, 3 points of normal and 1 point of bad.

A) Heat resistance-After the adhesives of Examples 1 to 4 and Comparative Examples 1 to 3 were left in a thermostat at 80 ° C. for 1 week, adhesion was measured.

B) Water resistance—The adhesives of Examples 1 to 4 and Comparative Examples 1 to 3 were cured for 7 days at 20 ° C. and 65% according to German DIN EN 204 D4-8, followed by 4 Measurements were made after daily immersion.

C) Hot water resistance-After curing the adhesive of Examples 1 to 4 and Comparative Examples 1 to 3 for 7 days at 20 ℃, 65% conditions in accordance with Germany DIN EN 204 D4-9, 6 hours in boiling water Immersion in water and further immersion in water at 20 ° C. for 7 hours.

division Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 smell 5 5 5 5 One 5 5 Heat resistance 148.2 155.7 138.9 160.5 147.8 139.0 145.6 Water resistance 78.3 82.1 72.1 96.4 84.2 75.2 66.4 Hot water resistant 77.6 72.8 63.2 80.1 82.0 72.9 63.7 Manufacturing workability 5 5 5 3 One 3 3 Construction workability 3 3 3 5 One One One

Through the above Table 2, the adhesive composition of Examples 1 to 4 according to the present invention, compared to the resorcinol resin which is a formaldehyde-based resin of Comparative Example 1 and the conventional aqueous polymer isocyanate adhesive of Comparative Examples 2 to 4, the chemical smell Not only can significantly lower the temperature, but also has excellent heat resistance, water resistance, and hot water resistance, and the viscosity is adjusted by using a thixotropic agent, a drying retardant, and the like. It was confirmed that the workability was also excellent during the construction of the ondol floor.

The two-component aqueous adhesive composition for ondol floor according to the present invention is environmentally friendly, does not use formaldehyde and organic solvents that caused environmental destruction due to toxic release, ozone depletion, flammability, fluorine-containing compounds, etc. It is easy for workers to work without restraining the occurrence of severe chemical odor, and when living in a building constructed by tenants, they can live comfortably without feeling unpleasant like piercing their nose. There is an advantage. In addition, when applied to ondol flooring, it exhibits excellent adhesion, heat resistance, water resistance, and hot water resistance even at room temperature or warming, and exhibits excellent adhesion to various adherends such as ondol floorboards, PVC, plastic plates, and cement floors. Can be. In addition, it has fluidity and flowability suitable for spreader workability when manufacturing ondol flooring, as well as permeability and thixotropy suitable for variation of plywood and difference in absorbency. , Has osteogenicity, and high viscosity, and has the advantage of excellent pot life, adhesion, and heat resistance.

Claims (12)

In the two-component aqueous adhesive composition for ondol floor, a) i) 20 to 100 parts by weight of rubber latex or emulsion resin;   Ii) 0.1 to 1 parts by weight of heat resistance enhancer;   Iii) 5 to 50 parts by weight of an aqueous OH group-containing polymer solution or emulsion;   Iii) 5 to 100 parts by weight of an inorganic filler; And   V) 1 to 20 parts by weight of thixotropic agent; And   Iii) 1 to 50 parts by weight of water   Subject containing; And b) hardeners containing isocyanate compounds 10: 0.5-2.0 weight ratio of two-component aqueous adhesive composition for ondol flooring. The method of claim 1, Ondol selected from the group consisting of chloroprene rubber, styrene-butadiene rubber, acrylonitrile-butadiene rubber, methyl methacrylate-butadiene rubber, polybutadiene rubber, and butyl rubber, Two-part aqueous adhesive composition for flooring. The method of claim 1, The resin used in the emulsion resin of a) iii) is a water-soluble acrylic resin, ethylene vinyl acetate (ethylene vinylacetate, EVA), polyvinylchloride, polyvinylacetate (PVAC), polyylbutadiene, polyvinylidene, And polyurethane (polyurethane, PU). A two-component aqueous adhesive composition for ondol floor selected from the group consisting of: The method of claim 1, The heat resistance enhancer of a) ii) is a water-soluble urethane resin, a water-soluble epoxy resin, a silane resin, a polybutadiene-based modified polymer, a fluorine-modified polymer, a fatty acid-modified polymer, and a modified polyphenylene oxide (modified PPO). A two-component aqueous adhesive composition for ondol floor, which is selected from the group consisting of: The method of claim 1, 2-component aqueous solution for ondol floor, wherein the OH group-containing polymer aqueous solution or emulsion of a) iii) is selected from the group consisting of starch, polyvinyl alcohol, carboxymethyl cellulose, protein, and polyvinyl acetate. Adhesive composition. The method of claim 1, The inorganic filler of a) iii) is selected from the group consisting of calcium carbonate (CaCO ₃ ), calcium sulfide, barium sulfide, backclay, dixclay, sulfur clay, ash, and silica (SiO ₂ ) Two-component aqueous adhesive composition for phosphorus ondol floor. The method of claim 1, The two-component aqueous adhesive composition for ondol floor, wherein the thixotropic agent of a) i) is selected from the group consisting of silicas, acrylic copolymers, urethanes, and celluloses. The method of claim 1, The subject of a) is a group consisting of nonionic and anionic surfactants, non-silicone antifoaming agents, preservatives, thixotropic agents, PVC adhesion enhancers, drying retardants, ceramics, dispersants, stabilizers, leveling agents, gas absorbers, moisture absorbers, and catalysts. Two-component aqueous adhesive composition for ondol floor further comprising an additive selected from the group consisting of: The method of claim 1, The two-component aqueous adhesive composition for ondol floor, wherein the isocyanate compound of b) contains 25 to 35% of NCO groups. The method of claim 1, Blocking (b) wherein the curing agent of b) is selected from the group consisting of alcohols (alcol), oximes, amines, amines (aminde), and lactams having active hydrogen ( A two-component aqueous adhesive composition for ondol flooring further comprising 1 to 30 parts by weight with respect to 100 parts by weight of the curing agent. The method of claim 1, The two-component aqueous adhesive composition for ondol flooring, wherein the aqueous adhesive composition is for producing ondol floorboard, and the viscosity of the main ingredient of a) is 120 to 150 Pa · s (PS, measured at 25 ° C.). The method of claim 1, A two-component aqueous adhesive composition for ondol floor, wherein the aqueous adhesive composition is for ondol floor construction, and the viscosity of the main ingredient of a) is 300 to 400 Pa · s (PS, measured at 25 ° C.).