KR20070050604A - Wear resistant epoxy coating agent and coating method by using it - Google Patents

Abstract

The present invention provides 20 to 38% by weight of epoxy resin, 35 to 65.7% by weight of coloring and sieving pigment, 10 to 15% by weight of curing agent, 2 to 5% by weight of reactive diluent, 2 to 4% by weight of non-reactive diluent, and thixotropic as other additives. An epoxy flooring composition comprising 0.1 to 1% by weight of each of an additive, a hardening accelerator, and an antifoaming agent, and a roller 1 having a protrusion 4 and a groove 5 for forming an uneven portion of the flooring composition. Epoxy having an uneven pattern, which is formed by applying to the concrete floor surface 10 using the epoxy flooring surface to form an integral concave-convex portion 11 ', and then hardening the concave-convex portion integrally with the epoxy flooring surface. It relates to a flooring composition and flooring construction method.

According to the present invention, an integral uneven portion is formed to protrude uniformly to the surface of the epoxy flooring so that a vehicle or a pedestrian traveling and walking on the surface of the flooring does not slip easily even if it comes into contact with moisture or oil, thereby preventing safety accidents in advance. It has excellent scratches and excellent durability and almost no maintenance cost.In addition to the road surface of parking lot, it is possible to apply interior effect and economic effect when applied to a large number of vehicles such as hospitals, airports, department stores, schools, etc. You can get it.

Abrasion Resistance, Epoxy, Flooring, Composition, Flooring, Construction Method, Uneven Pattern, Durability

Description

Wear-resistant epoxy flooring composition with uneven pattern and flooring construction method {Wear resistant epoxy coating agent and coating method by using it}

1 is a perspective view of a roller used in the wear-resistant epoxy flooring construction method of the present invention.

Figure 2 is an explanatory view of the application state immediately after construction in accordance with the wear-resistant epoxy flooring construction method of the present invention.

Figure 3 is an explanatory view of the application state after 30 seconds after construction in accordance with the wear-resistant epoxy flooring construction method of the present invention.

Figure 4 is an explanatory view of the coating state after 1 minute of construction in accordance with the wear-resistant epoxy flooring construction method of the present invention.

<Code Description of Main Parts of Drawing>

1-roller, 2-body,

3-handle, 4-protrusions,

5-groove, 10-concrete,

11-Flooring, 11 '-Uneven

The present invention relates to a wear-resistant epoxy flooring composition having a concave-convex pattern and a flooring construction method, more specifically, thixotropic additives such as epoxy resins, coloring and sieving pigments, curing agents, reactive and non-reactive diluents, and other additives, Epoxy flooring composition comprising a curing accelerator and an antifoaming agent, and applying the flooring composition to a concrete floor using a roller having protrusions and grooves for forming the uneven parts to form an integral uneven part on the epoxy flooring surface, It relates to an epoxy flooring composition having a concave-convex pattern and a flooring construction method characterized in that the concave-convex portion is completed by integrally curing the epoxy flooring surface.

In general, after the construction of concrete buildings such as parking lots, hospitals, airports, department stores, schools, etc., most of the epoxy flooring paints are applied to protect the concrete floor surface of the building while improving the aesthetic appearance. As a construction, comfortable and stable driving and walking can be performed at the time of coming and going of vehicles or people while preventing the leakage of concrete floor from rainwater.

Epoxy flooring used for this purpose is completed by mixing and mixing a resin material, a curing agent, a diluent, and other additives in a liquid state and applying it to a concrete floor surface and curing for a predetermined time. Currently, various types of epoxy flooring materials are commercially available. It is widely spread.

The liquid epoxy paint that constitutes the epoxy flooring can be divided into solvent type and solventless type. Epoxy paint is a coating applied to protect the surface of cement concrete, and has similar adhesion, chemical resistance, water resistance and impact resistance. Compared to other paints, the performance is excellent and is widely used. In particular, in order to maintain chemical resistance, water resistance, abrasion resistance, and cleanness on various floor surfaces, acrylic, solvent-type epoxy, solvent-free epoxy, elastic urethane, and various hardeners are installed. Among them, epoxy-based paints are most widely used in terms of performance and economy. have.

The solvent-type epoxy paint has good adhesion, water resistance, chemical resistance, abrasion resistance, etc., but the solvent content is high to harm the health of the worker during the painting work, and the remaining organic solvent contaminates the air during use after the work is completed. Compliance with the standard becomes difficult. The paint developed to solve these problems is a solvent-free self-horizontal epoxy paint, which has good spreadability due to its good spreading property, but has oily or moisture on the surface, which is slippery, causing safety problems.

In addition, there is a paint that forms an uneven pattern on the floor, which causes severe tire wear, which causes economic loss of the vehicle, and also causes a problem of air pollution by tire dust.

Meanwhile, Korean Patent Application Publication No. 2004-14157 (published on February 2, 2004) introduces an epoxy flooring containing stone powder, and when looking at the composition of such a flooring, a thick film-type epoxy solvent-free type is mica, silica sand, feldspar, feldspar, granite, Mineral materials such as dolomite, jade, elvan, and titanium oxide are contained in the form of granules to give embossing effect on the floor surface to reduce friction noise and to prevent slippage.However, when built in a parking lot, the minerals contained inside add weight to tire wear. Of course, over time after the coating construction, the mineral mixture, which is an internal mixture, gradually falls into the form of granules, pollutes the surroundings, and contaminates indoor and outdoor air.

Therefore, the present invention was developed in order to solve the above problems, it is thixotropic as a liquid flooring paint (epoxy resin, coloring and sieving pigments, curing agents, reactive and non-reactive diluents, other additives that constitute the epoxy flooring) 첨가제) additives, curing accelerators, and antifoams) are applied to the concrete floor using rollers with protrusions and grooves to form uneven parts on the surface of epoxy flooring, and to maintain the level of rollers during horizontal maintenance. As the uneven part is molded and hardened as it is, the uneven part does not slip even when a vehicle or a pedestrian traveling and walking on the surface of the floor does not come into contact with moisture or oil, preventing safety accidents in advance. Excellent maintenance cost It is an object of the present invention to provide a wear-resistant epoxy flooring composition and a flooring construction method having a high-quality uneven pattern that hardly takes up.

EMBODIMENT OF THE INVENTION Hereinafter, it demonstrates in detail based on attached drawing about the structure of this invention.

Preferred epoxy flooring composition of the present invention, 20 to 38% by weight epoxy resin, 35 to 65.7% by weight pigment and extender pigment, 10 to 15% by weight curing agent, 2 to 5% by weight reactive diluent, non-reactive diluent 2 ~ 4 weight% and 0.1 to 1 weight% of a thixotropic additive, a hardening accelerator, and an antifoamer, respectively are contained as other additives.

In addition, the epoxy flooring composition (paint) made of a predetermined compounding ratio as described above is to be applied to the concrete floor surface 10 by using a specially manufactured roller, the roller (1) is excellent in flexibility and elastic recovery It forms the body 2 of the shape like a wagon scrubber, and the outer peripheral surface forms irregular projections 4 and grooves 5 over the entire surface.

Therefore, when the epoxy floor coating material is applied to the concrete floor surface by using the roller having the above configuration, a plurality of uneven parts 11 'are integrally formed on the surface of the epoxy floor material 11 as shown in FIGS. 2 to 4. It is formed as.

At this time, the uneven part pattern is molded as the uneven pattern which the roller has, and by selecting and using the roller having the uneven pattern of various forms, it is possible to diversify the shape of the uneven part.

On the other hand, the concave-convex portion integrally formed on the surface of the flooring material by the specially manufactured roller 1 as described above is easily deformed as the concave-convex shape of the roller by the fluidity regulator (flow rate adjusting agent) blended into the epoxy flooring paint, and after deformation It can be cured in a state of maintaining the shape as it is.

After all, the role of the rheology modifier (thixotropic additive, antifoaming agent) is to adjust the viscosity of the composition material constituting the epoxy flooring material, to remove the bubbles contained in the flooring paint to further strengthen the structure as the uneven pattern of the roller It can be easily molded into a shape, and to maintain the shape as it is after molding.

For example, the fluidity modifier refers to a reactive diluent and a non-reactive diluent in a volume ratio of 3: 2 and at the same time adding a thixotropic additive to about 0.6% of the total ratio to adjust the fluidity and flowability so that the uneven pattern can be produced. It will act as a coordinator.

In addition, the epoxy flooring composition according to the present invention is a ratio of thixotropy at high shear and low shear at 2: 3.

As for the epoxy resin used by the said invention about 180-200, n = 10 or less liquid resin is used as bisphenol-type epoxy resin obtained by condensation reaction of bisphenol A and epichlorohydrin in alkali presence.

The content of the epoxy resin is preferably 20 to 38% by weight. If the content is less than 20% by weight, the effect of addition is small, so that it is difficult to act as a resin.

Among the coloring and sieving pigments, pigments having good alkali resistance may be used, but inorganic pigments such as titanium oxide, iron oxide red, iron oxide yellow, and chromium oxide green may be mainly used, and organic pigments may be used if necessary.

The extender pigment is an inorganic material such as silica sand, calcium carbonate, magnesium silicate, ceramic powder, etc., and the particle size of 30-100 μm may be used to obtain storage stability and overall performance as an epoxy composition.

Here, when the content of the coloring and extending pigment is less than 35% by weight, it is difficult to express color as a flooring material. On the contrary, when the content of the coloring and extending pigment is more than 65.7% by weight, the formation of the composition is difficult due to excessive amount, and the coloring and extending pigment is preferably 35 to 65.7% by weight. Do.

The curing agent is a component that reacts with the epoxy to cure, the content is 10 to 15% by weight is suitable, there is no limitation in the kind, but an amine-based curing agent is preferred, and a curing accelerator for promoting curing is added as an additive, 3 It is preferable to add 0.1-1 weight% of hardening | curing agents of class amines.

The epoxy curing agent used in the present invention is a curing agent for room temperature that can be cured at room temperature. As a specific kind of hardening | curing agent, an aliphatic amine, a polyamide amine, an amido amine, a cycloaliphatic amine, an aromatic amine, a modified phenylamine, etc. can be used.

The mixing ratio of the epoxy resin and the curing agent should be 1: 1 in the ratio of the active hydrogen equivalent and the epoxy group. If this ratio is not correct, the overall performance will be degraded. If the content of the curing agent is high, amine brushing occurs, and the water resistance and chemical resistance of the cured coating film are poor. In addition, when the amount of the curing agent is insufficient, the surface hardness, solvent resistance, etc. are poor due to the unreacted epoxy.

The reactive diluent used in the present invention is a diluent having an equivalent weight of about 180-200, which significantly lowers the viscosity of the epoxy, improves workability, increases the surface hardness of the coating film, and the non-reactive diluent has the performance of improving workability. However, if an excessive amount is added, the coating film becomes soft, which is not good because it adversely affects the surface hardness.

Therefore, due to this property, the reactive diluent is added in an amount of 2 to 5% by weight, and the non-reactive diluent is added in an amount of 2 to 4% by weight. Epoxy flooring itself is to be formed by the use of a modification additive. Butyl glycidyl ether, cresyl glycidyl ether, 2-ethylhexyl glycidyl ether and the like are used as the reactive diluent, and benzyl alcohol and hydrocarbon resin are used as the non-reactive diluent.

The thixotropic additive used as the other additive is a benton series as one component of the fluidity regulator as described above, and the antifoaming agent is a silicone or non-silicone series and suppresses bubble generation. It is preferable to add 1% by weight.

Although some of the components are listed in the present invention, these are exemplified by the silicone and acrylic dispersing agents, dispersants of silicone and amino bases, and anti-foaming agents such as silanes and polysiloxanes. Bentonite-based, wax-based, and the like can be used as fluidity improving agents for imparting pigment precipitation and fluidity change.

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

Example

Each component was mixed in the ratio shown in following Table 1 using the conventional reaction mixer, and the epoxy flooring composition was obtained. There is no particular restriction on the mixing order of each component, but 1 to 5 were mixed first, and 6 and 7 were added thereto, and 8 and 9 were added while stirring, followed by 11 and 12 and 13 were added thereto.

order ingredient Usage Ratio (wt%) One Epoxy resin Basic resin 30 2 Butyl glycidyl ether Reactive diluent 3 3 Benzyl alcohol Non-reactive diluent 2 4 BYK-163 (product made in Germany BYK-Chemie company) Antifoam 0.3 5 BYK-051 (〃, non-silicone type) Antifoam 0.20 6 Bentone Thixotropic additive 0.6 7 TiO2 Coloring pigment 4.4 8 Calcium carbonate Sieving pigment 40 9 Talc Sieving pigment 3 10 Wallastonite Sieving pigment 5 11 BYK-330 (manufactured by BYK-Chemie) * Antifoam 0.2 12 Polyamideamine Hardener 11 13 Tertiary amine Curing accelerator 0.48 system 100

* BYK-330: Polyether Modified Dimethyl Polysiloxane Copolymerization Solution

Hereinafter, the present invention will be described in more detail with reference to construction examples and accompanying drawings.

<Application example>

The flooring material was constructed using the wear-resistant epoxy flooring composition which has the uneven | corrugated pattern obtained by the said Example.

(Preparation process)

First, various impurities such as moisture and oil on the surface (concrete surface) are removed, and other uneven or cracked portions are smoothed with a polishing machine or the like.

(Painting process)

Moisture meter measures the moisture on the surface and maintains water content of about 8%. Clean it again with a vacuum cleaner, and then use EP-1000 primer (two-component primer) once or twice depending on the absorption rate of the substrate using a brush or roller. Apply.

(Middle painting process)

After 4 ~ 5 hours of coating, the EL-9900 (2 component quick-drying intermediate flooring, solvent-free type) and the curing agent are uniformly mixed with an electric mixer and cracked area using a suitable work tool such as trowel or rubber spatula. B Fill in the irregularities (dents).

After drying, the surface is polished and polished using abrasive paper, and then a coating film of about 250 μm is formed on the intermediate agent (EL-9900) with an iron trowel (Yangde).

The coating film is polished once more to make it smooth.

(Top coating process)

After rehabilitation work other than painting, vacuuming, and then EL-7700 (wear-resistant epoxy flooring composition of the present invention, two-component concave-convex pattern flooring, solvent-free) per iron m2 (Yangde) Apply uniformly within about 0.5kg.

At this time, the uneven pattern forming work is performed by using a predetermined roller of the present invention.If the uneven pattern roller has a large amount of paint, the rubbing force and the uneven pattern texture are good if the roller is rubbed a few times without applying force to the roller. Done.

1 is a perspective view of a roller 1 used in the wear-resistant epoxy flooring construction method of the present invention.

In the drawings, the roller 1 used in the present invention is a roller consisting of a body portion 2 and a handle 3, the body portion 2 is a foam sponge shape, giving a feeling of a kind of scrubber, irregularly A plurality of grooves 5 are formed between the protruding protrusions 4 and these protruding portions 4.

2 is an explanatory view of an application state immediately after construction in accordance with the wear-resistant epoxy flooring construction method of the present invention.

In the drawing, when the epoxy flooring composition 11 of the present invention is applied to the surface of the concrete 10 finished with the roadway and the middle road using the roller 1, the body 2 of the roller 1 The groove portion 5 of the) is impregnated with a relatively large amount of paint and then applied to the base to form the uneven portion 11 ′ on the surface.

3 is an explanatory view showing a coating state after 30 seconds after construction, and 1 minute after construction, and is uniformly cured as the height of the uneven portion 11 'is lowered with time as compared to immediately after construction. The uneven part is completed.

Various tests as shown in Table 2 were performed on the finished flooring of the present invention.

No. Test Items Test value Test Methods One Housework time 30 minutes KS M 5307 2 Drying time 24 hours KS M 5000 3 Water Resistance (60 Days Precipitation) clear KS M 5000-90 (60 days storage) 4 Storage stability clear 60 days storage 5 Adhesion 430 PSI K SM 3734-96 6 Impact resistance clear KS F 4041-99 7 The tensile strength 8,100 PSI KS M 3006-93 8 Compressive strength 13,000 PSI KS M 3015-97 9 Hardness 95 KS M 3015-97 (shore) 10 Wear resistance 7 ~ 8 gr Reduction of 100 revolutions (KSM 5322) 11 Workability Good The degree of smooth pattern formation during roller work

As can be seen from the above table, according to the wear-resistant epoxy flooring composition and the flooring construction method of the present invention, water resistance, storage stability, impact resistance is good, and the physical properties such as tensile strength, compressive strength, hardness, etc., particularly excellent wear resistance can confirm.

As described above, in the present invention, by using an additive to adjust the fluidity in the composition of the epoxy flooring agent, it is possible to automatically adjust the optimum viscosity condition for forming the uneven pattern integrally and at the same time contain an additive having a high surface hardness to reinforce the wear resistance. By forming the uneven pattern, the area of contact between the tire and the floor is reduced and the coefficient of friction is increased, and the uneven pattern creates more than twice the wear resistance, thereby giving high durability.

That is, when the epoxy flooring composition obtained in accordance with the present invention is applied with a roller for forming concave-convex, soft concavo-convex occurs on the surface of the epoxy flooring in the process of leveling with its own viscosity modifier. The area of contact with the tires of the vehicle is naturally reduced.

Therefore, the friction coefficient due to the unevenness is increased, the sliding phenomenon is reduced and the friction noise is reduced, and the unevenness generated has a double effect in wear resistance due to high durability, and maintenance is easy and economical floor maintenance is possible.

On the other hand, in the present invention has been described a configuration of adding a specific additive to the main component epoxy resin, coloring and sieving pigments, curing agents, in the present invention is not limited to this, other similar components can be optionally added as needed, In addition, in the construction example, but described mainly on the installation on the flooring of the parking lot, but also applicable to all indoors, such as other hospitals, as well as these will all be within the scope of the present invention.

According to the present invention as described above, the uneven part integrally formed with the epoxy flooring surface is formed on the surface of the floor of the building uniformly has a non-slip effect in the concrete floor surface, in particular, it is excellent in wear resistance and does not hurt ( Excellent scratch resistance) With excellent durability, almost no maintenance cost is required, and when applied to a large number of vehicles such as hospitals, airports, department stores, schools, etc. You can get the effect.

In addition, as a concave-convex pattern is formed in the surface of the epoxy flooring material according to the thixotropy ratio adjustment and fluidity control additives of the concave-convex pattern forming roller and the epoxy resin composition applied to the present invention. It fundamentally blocks problems such as contamination of the minerals and polluting the surroundings and pollution of the air, and has the advantage of further improving the quality and satisfaction of flooring applied to various buildings.

Claims (4)

20 to 38% by weight epoxy resin, 35 to 65.7% coloring and extender pigment, 10 to 15% by weight curing agent, 2 to 5% by weight reactive diluent, 2 to 4% by weight non-reactive diluent, thixotropic as other additives A) wear resistant epoxy flooring composition having an uneven pattern, characterized in that it comprises 0.1 to 1% by weight of an additive, a curing accelerator and an antifoaming agent. According to claim 1, The coloring pigment is an inorganic or organic pigment such as titanium oxide, iron oxide red, iron oxide yellow, chromium oxide green, etc., The sieving pigment is an inorganic material such as silica sand, calcium carbonate, magnesium silicate or ceramic powder, the particle size of the wear-resistant epoxy flooring composition having a concave-convex pattern, characterized in that the use of 30-100㎛. According to claim 1, A wear-resistant epoxy flooring composition having a concave-convex pattern, wherein the epoxy itself forms a concave-convex pattern by setting a ratio of thixotropy at a high shear force and a thixotropy at a low shear force to 2: 3. The flooring composition of claim 1 or 2 is applied to the surface of the concrete 10 using a roller 1 having a protrusion 4 and a groove 5 to form an uneven portion 11 ', followed by a few seconds. After a few minutes (about 2 to 2 minutes) has elapsed, it is stable on the surface of the epoxy flooring material while the uneven portion 11 'is maintained in its shape by a thixotropic additive and an antifoaming agent, one of the fluidity regulators. Abrasion resistant epoxy flooring construction method having a concave-convex pattern, characterized in that the protrusion hardening.

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