KR101044054B1 - water-proof floor coating composition using textile sheet coated with plasma polymer and using method of the same - Google Patents

Abstract

The present invention relates to a waterproof floor using a fiber sheet and a construction method thereof, the synthetic resin such as epoxy easily penetrates into the fiber sheet and is easy to install, high adhesion between the synthetic resin and the fiber of the fiber sheet, high mechanical strength and the surface after construction It is an object of the present invention to provide a waterproof flooring material using a fiber sheet that forms a suitable roughness to prevent running noise and slippage of a vehicle.

30-50% by weight of epoxy resin or acrylic modified epoxy resin having the structure of [Formula 1], 1-10% by weight of epoxy silane, 0.1-1% by weight of antifoaming agent, 2-10% by weight of reactive diluent, and ceramic powder 29-66.9 100 parts by weight of A agent consisting of weight%; 10-30 parts by weight of B agent composed of 60-90% by weight of polyamine and 10-40% by weight of aminosilane; Waterproof flooring using a fiber sheet consisting of 10-30 parts by weight of the fiber sheet coated with plasma polymerized polymer.

[Formula 1]

In the above formula, n is an integer of 1-25.

Plasma Polymerized Polymer, Fiber Sheet, Waterproof Flooring, Running Noise, Anti-Slip, Tensile Strength

Description

Water-proof floor coating composition using textile sheet coated with plasma polymer and using method of the same}

The present invention relates to a waterproof floor using a fiber sheet and a construction method thereof, and more particularly, when running in an underground parking lot as well as waterproofing, the running noise and slip of the vehicle are reduced, and the resin composition is well permeated into the fiber sheet. The present invention relates to a waterproof flooring material using a fiber sheet coated with a plasma polymerized polymer having high mechanical strength due to high adhesion strength between a resin composition and fibers of a fiber sheet, and a method of construction thereof.

Synthetic resin coating materials are coated on the floors of underground parking lots, warehouses, and kitchens.Epoxy resins, in particular, have good water resistance, alkali resistance, high mechanical strength, higher heat resistance, and higher adhesion than other organic paints. It is preferred because it has the advantage of coating.

However, when only synthetic resins such as epoxy are coated, the floor is smooth, and underground parking garages have a squeaky running noise and slip well when driving.In addition, the coating thickness is not constant due to the irregularities of the concrete floor. It has a disadvantage that it prevents cracking of the concrete floor, or if it is cracked, it becomes unrecognizable and unsightly.

Thus, many methods using fiber sheets such as non-woven fabrics as reinforcing materials have been developed. Coating compositions such as epoxy have high viscosity and do not penetrate well between fibers of the fiber sheet, so that they contain bubbles or have poor adhesion, resulting in poor mechanical strength. In addition, the adhesion between the synthetic resin layer and the concrete slab layer is disadvantageous, such as lifting or peeling occurs.

As an invention related to the floor coating used by adding a fiber sheet or the like as a reinforcing material to the flooring materials such as underground parking lot, Korean Patent Laid-Open No. 2000-74352 discloses an acrylic resin primer layer on a concrete slab layer; A background adjustment and reinforcement layer of a thin film polymer composite composed of a polymer base adjustment material comprising a powder such as silica, an acrylic resin of a water-soluble emulsion type, and an epoxy resin; Polyester nonwoven fabric layer; Rubber asphalt coating film waterproof layer formed by hot or cold method; And a method of laminating the protective mortar layer in order, but there are five layers in number, and there is a difficulty in construction that heating is required in the process of laminating a rubber asphalt coating waterproof layer after the polyester nonwoven fabric layer.

In addition, the Republic of Korea Patent Registration 10-0772329 step of applying a primer on the base concrete surface; Disposing a fiber sheet made of warp knitted fabric as a waterproof fiber sheet on a primer layer and connecting the reinforcing tape to form a fiber sheet layer; Fixing a fibrous sheet layer by applying thixotropic urethane having a viscosity of 900,000 to 1 million CP over the fibrous sheet layer; A method of constructing a waterproof flooring material using a thixotropic urethane and a fiber sheet, which comprises forming a coating layer by spraying an ultrafast curing resin composed of a polyurea resin or a urethane rim (RIM) on a thixotropic urethane, is disclosed. It is characterized by the use of thixotropic urethane to infiltrate well and the use of expensive resins.

In addition, the Republic of Korea Patent Publication No. 10-2003-0065996 is pre-treated with a concrete surface, coated with a supernatant containing an epoxy resin and the same amount of modified acrylic resin on the surface, and as soon as the coating layer is formed, the pressure-sensitive adhesive glass fiber woven layer on the coating layer By hardening and then hardening, and then coated with an epoxy resin mixed with a curing agent and an inorganic filler, cured for 20 to 24 hours, and a two-component resin and an inorganic filler mixed with an epoxy resin and a curing agent and an inorganic accelerator. After coating and curing, the waterproofing method using a reinforcing fiber woven fabric and a synthetic resin reinforcing material to coat the top coat once again in the same method is disclosed, which is a complicated method in which five layers are laminated through a six-step process.

In addition, the Republic of Korea Patent Application Publication No. 10-2005-0113998, the primer is applied to the concrete base, the mineral fiber woven fabric is attached thereon, the rubber asphalt thermal coating film waterproofing agent is applied on the mineral fiber woven fabric, and the waterproof coating layer protective panel is attached There is disclosed a method of paving ascon on a protective panel, which includes five layers including panels on the concrete floor, includes a heating process during construction, and cannot have a beautiful appearance under the premise of using asphalt.

And as an invention for preventing the running noise and slip of the vehicle, Korean Patent Registration 10-0686452 and the epoxy-based primer layer on the concrete floor; A first medium viscosity urethane layer excellent in strength, elasticity, flame retardancy, and breathability laminated on the epoxy primer layer; A second medium viscosity urethane layer excellent in strength, elasticity, flame retardancy, and breathability; A silica sand layer; A third medium viscosity urethane layer excellent in strength, elasticity, flame retardancy, and breathability; A parking lot waterproof floor structure is disclosed in which a high-strength and low-elasticity non-combustible urethane layer, which forms an uneven surface by a specially processed silica sand layer, is sequentially stacked, and the uneven surface is formed on the surface to prevent driving noise and slippage of the vehicle. As many as seven layers are laid on the concrete floor.

As discussed above, in order to increase the mechanical strength of waterproofing, vehicle running noise and anti-slip, and flooring, the prior art is laminating at least five layers including a fiber sheet or even a panel, and allowing the synthetic sheet to penetrate the fiber sheet. Hazardous synthetic resins are used or heating is required during the process.

Thus, it has a complicated structure that cannot be waterproofed in common. The problem is that it is not economical and expensive to use, such as using expensive resin.

[Document 1] Republic of Korea Patent Publication 10-2000-74352

[Document 2] Republic of Korea Patent Registration 10-0772329

[Document 3] Republic of Korea Patent Publication 10-2003-0065996

[Document 4] Republic of Korea Patent Publication 10-2005-0113998

[Document 5] Korea Patent Registration 10-0686452

The object of the present invention is easy to install because the synthetic resin such as epoxy penetrates well into the fiber sheet, high adhesion between the synthetic resin and the fiber of the fiber sheet, high mechanical strength, and forms a suitable surface roughness on the surface after construction to drive the vehicle It is to provide a waterproof flooring material and a construction method thereof using a fiber sheet that is noise and non-slip.

The present invention for achieving the above object,

30-50% by weight of epoxy resin or acrylic modified epoxy resin having the structure of [Formula 1], 1-10% by weight of epoxy silane, 0.1-1% by weight of antifoaming agent, 2-10% by weight of reactive diluent, and ceramic powder 29-66.9 100 parts by weight of A agent consisting of weight%;

10-30 parts by weight of B agent composed of 60-90% by weight of polyamine and 10-40% by weight of aminosilane;

It is a waterproof flooring material using a fiber sheet consisting of 10-30 parts by weight of the fiber sheet coated with plasma polymerized polymer.

In the above formula, n is an integer of 1-25.

Agent A is composed of epoxy resin or acrylic modified epoxy resin and epoxysilane as a core component, and is combined with agent B to form a non-interpenetrating network coating film.

As the epoxy silane of the agent A, for example, γ-glycidoxypropyltriethoxysilane of the following [Formula 2] and γ-glycidoxypropyltrimethoxysilane of [Formula 3] are used.

The antifoaming agent of agent A uses, for example, a compound having the structure of [Formula 4], and the reactive diluent uses, for example, aliphatic glycidyl ether of the following [Formula 5]. .

In the above formula, X is -CO- or -CH ₂ CH ₂ NHCO-, R ¹ is a hydrocarbon group of 1 to 30 carbon atoms, R ² O is an oxyalkylene group of 2 to 18 carbon atoms. And n is an integer from 1 to 300, and R ³ is at least one or more carboxyl groups or sulfonyl groups or salts thereof.

The ceramic powder of agent A is exposed to the hardened bottom surface to impart abrasion resistance. For example, alumina (Al ₂ O ₃ ), zirconia (ZrO ₂ ), silica, or the like is used alone or in combination. Denseness is increased.

The aminosilane of agent B is, for example, 3-aminopropyltriethoxysilane of the following [Formula 6], 3-aminopropyltrimethoxysilane of [Formula 7], N- (3-amino of [Formula 8] Phenyl) -3-aminopropyltrimethoxysilane, N- (2-aminoethyl) -3-aminopropyltrimethoxysilane of [Formula 9], or a mixture thereof is used, and the polyamine is, for example, The thing which has a structure of [Formula 10] is used.

In [Formula 8], n is an integer of 1-25.

The fibrous sheet coated with the plasma polymerized polymer is the most characteristic part of the present invention. The plasma polymerized polymer is obtained by plasma polymerizing a hydrocarbon, organosilicon, hydrogen fluoride, or a mixture of organosilicon and oxygen with a polymerizable gas.

Plasma refers to a gaseous state that is partially ionized and electrically neutral as a whole. Placing the fiber sheet in a low pressure gas or vapor causes the polymer film to be coated on the surface of the fiber sheet, thereby changing its surface properties. In other words, regardless of the original surface properties of the object to be coated, the surface properties are changed to hydrophilic or lipophilic.

In the present invention, efforts have been made to find a polymerizable gas that sucks the mixed solution of agent A and agent B. After extensive efforts, it has been found that it is a hydrocarbon, organosilicon, hydrogen fluoride, or a mixture of organosilicon and oxygen.

Fiber sheet can be either woven fabric, non-woven fabric or network structure (net structure), and the ceramic powder contained in agent A forms irregularities on the floor surface to prevent driving noise and slippage of the vehicle and improve the mechanical strength of the flooring material. It prevents the cracks on the concrete floor to some extent.

Although it is not an issue of the present invention, the liquid composition A and B of the waterproof flooring material contain little volatile organic solvent (VOC) and are eco-friendly, and the coating film formed has the advantages of epoxy bonding and high solvent resistance and alkali resistance. In addition, epoxysilane and aminosilane undergo condensation polymerization to increase the density of the coating film and compensate for acid and weather resistance which are disadvantages of epoxy resin.

In particular, the aminosilane maximizes the crosslinking density of the coating film to improve the mechanical strength of the cured coating film, and forms a permeable network with the epoxysilane. In addition, the silanol group of the epoxy silane condensation reaction with the hydroxy group of the concrete increases the adhesion strength to the concrete surface.

Waterproof flooring using the fiber sheet coated with the plasma polymerized polymer of the present invention,

Mixing agent A and agent B on site and primer coating the concrete floor;

Fixing the fiber sheet coated with the plasma polymerized polymer to the primer-coated concrete surface;

Again, the agent A and agent B is mixed in the field, poured over a fiber sheet, spreading and curing through the step of curing.

Agents A and B are made separately and mixed when used in the field, but all processes are completed in just three steps.

In the process of pouring and spreading the mixed solution of agent A and agent B on the fiber sheet in the third step, the ceramic powder contained in agent A penetrates into the fiber sheet, but remains on the surface to enhance surface roughness.

As shown in Fig. 1, the cross section after the construction is a form in which two layers of the primer layer A and the fiber sheet layer B in which the waterproofing floor material is impregnated are stacked on the concrete.

As shown in Fig. 2, the fibrous sheet can be prevented from slipping when driving a vehicle more effectively by using a hole having a circular or other shape.

According to the present invention, first, the liquid composition containing the epoxy resin and the like easily penetrates into the fiber sheet, so it is easy to be installed at the work site, and bubbles are not included in the fiber sheet, and thus the mechanical strength is high.

Second, the mechanical strength is high because the adhesion between the synthetic resin and the fiber of the fiber sheet is high, and after construction, a suitable surface roughness is formed together with the ceramic powder on the surface to prevent running noise and slippage of the vehicle.

First, the process of coating the plasma polymerized polymer on the fibrous sheet, which is the greatest feature of the present invention, will be described in more detail with reference to Examples.

≪ Example 1 >

Using a polyester nonwoven fabric having a surface density of 90 g / m ² as a fibrous sheet, using the apparatus shown in FIG. 1, after coating the plasma polymerized polymer by changing the polymerizable gas, the polyester nonwoven fabric not coated with the plasma polymerized polymer and A The affinity for the mixed solution of agent B was compared.

A. Coating of Plasma Polymerized Polymer

1) pretreatment

A polyester nonwoven fabric 12 having a side length of 10 cm is placed at the center of the reaction chamber 11 provided with two electrodes 21 connected to the RF (radio frequency) power supply 13, and adsorbed to the fiber sheet. After depressurizing the reactor pressure to 5 millitorr by operating the vacuum pump 20 to degas the gas, the polymerizable gas was flowed into the reactor at an appropriate flow rate while maintaining the internal pressure of the reactor below 5 torr.

The pressure in the reactor was controlled through a throttle valve 19, separate from the control of the flow rate of gas using the flow meter 16.

2) polymerizable gas

Methane was used as the hydrocarbon, dimethylsilane was used as the organosilicon, and tetrafluoroethylene was used as the hydrogen fluoride. A 1: 1 mixture of organosilicon (dimethylsilane) and oxygen was also used. (Otherwise, air, carbon dioxide, and water were carried out, but the affinity for the mixed solution of agent B except A was not good.

3) Plasma Polymerization Polymer Coating

While maintaining the pressure of the polymerizable gas, that is, the internal pressure of the reactor at 5 torr or less, the matching network 14 was operated to supply energy through the power supply 13.

The amount of energy introduced was the product of the energy input per unit mass of the polymerizable gas and the treatment time, that is, W · t / FM (Joule · sec / kg) to be 3 mega Joule sec / kg. Where W is the amount of power input (watts), t is the treatment time, and F and M are the molar flow rates and molecular weights, respectively, and FM is the mass flow rate.

B. Affinity Comparison of Mixed Solution of Agent A and Agent B

100 parts by weight of agent A (79.5% by weight of acrylic modified epoxy resin of Formula 1, 10% by weight of epoxy silane, 0.5% by weight of antifoaming agent, and 10% by weight of reactive diluent) excluding ceramic powder, 80% by weight of polyamine and 20% by weight of aminosilane The solution, mixed with 20 parts by weight of B, was placed in a beaker and the distance of soaking the polyester nonwoven fabric coated with the plasma polymerized polymer in step 3) of A for 10 seconds was measured.

Methane (hydrocarbon) 2.5 cm, dimethylsilane (organosilicon) 3.7 cm, tetrafluoroethylene (hydrogen fluoride) 1.7 cm, 1: 1 mixture of dimethylsilane (organosilicon) oxygen 3.5 cm, coating nothing Polyester nonwoven fabric was only 0.5 cm. (If air, carbon dioxide, or water is used as the polymerizable gas, it will not be sucked up at all.

C. Conclusion

The conclusions that can be drawn from the above experiments can be expected that the coating of the plasma polymerized polymer on the fibrous sheet will result in a very good workability and a good affinity so that it will not contain bubbles.

Subsequently, the waterproof flooring material using the fibrous sheet coated with the plasma polymerized polymer of the present invention will be described with reference to how much the mechanical strength is improved compared to the case of using the non-coated polyester nonwoven fabric.

<Example 2-4>

Next, as shown in Table 1, A and B agents having different compositions were prepared, and dimethylsilane, which was evaluated to have the highest affinity in Example 1, was coated with a plasma polymerized polymer (Example 2 After impregnating and curing the polyester nonwoven fabric (Comparative Example 2-4) with -4) and nothing coated thereon, impact resistance and tensile strength were measured.

Example 2-4 is different from the type of epoxy silane and polyamine, the composition ratio of each composition was also different.

TABLE 1

division ingredient Example 2 Example 3 Example 4 A made Acrylic Modified Epoxy Resin 35.1 (Formula 1) 35.1 35.1 Epoxysilane 2.0 (Formula 2) 3.0 (Formula 2) 2.0 (Formula 3) Silica 15.4 14.4 15.4 Pigment 2.0 1.0 1.0 Al ₂ O ₃ 20.0 20.0 20.0 ZrO ₂ 20.0 20.0 20.0 Antifoam 0.5 (Formula 4) 0.5 (Formula 4) 0.5 (Formula 4) Reactive diluent 5.0 (Formula 5) 5.0 (Formula 5) 5.0 (Formula 5) B agent Polyamine 85.0 (Formula 10) 85.0 (Formula 10) 80.0 (Formula 10) Aminosilane 15.0 (Formula 6) 15.0 (Formula 8) 20.0 (Formula 9)

The ratio of agent A: agent B was 86: 14 in Example 2, 90: 10 in Example 2, and 94: 6 in Example 3.

The impact resistance, compressive strength, and tensile strength measured by ASTM for each Example and Comparative Example are described in the following [Table 2].

TABLE 2

division Example 2 Comparative Example 2 Example 3 Comparative Example 3 Example 4 Comparative Example 4 Test Items Test Methods 1) Impact resistance (kg-cm) ASTM D 2794 (2004) More than 500 More than 500 More than 500 More than 500 More than 500 More than 500 2) Compressive strength (N / mm ² ) KS M 3015: 2003 126.2 125.1 124.0 124.5 125.8 128.0 3) Tensile strength (N / mm ² ) ASTM D 638-03 130.4 98.0 128.4 87.5 129.8 97.5

Looking at [Table 2], the impact resistance and compressive strength of the polyester nonwoven fabric coated with the plasma polymerized polymer (Example 2-4) and the non-coated polyester nonwoven fabric (Comparative Example 2-4) was almost no difference. In tensile strength, it can be seen that the polyester nonwoven fabric (Example 2-4) coated with the plasma polymerized polymer was significantly higher than the polyester nonwoven fabric (Comparative Example 2-4) without coating anything. That is, it means that the cracks can be prevented to some extent from the bottom.

1 is a cross-sectional view after construction.

2 is an example of a fiber sheet with a circular hole repeatedly.

3 is a schematic diagram of the plasma polymerization reactor used in Example 1.

* Description of the symbols for the main parts of the drawings *

A: Primer layer B: Fiber sheet layer impregnated with resin composition

11 Reaction Chamber 12 Sample

13: RF power supply 14: matching network

15: stop valve 16: flow meter

17 vessel of gas and steam 18 pressure gauge

19: throttle valve 20: vacuum pump

21: electrode

Claims (4)

30-50% by weight of acrylic resin or acrylic modified epoxy resin having the structure of [Formula 1], 1-10% by weight of epoxy silane, 0.1-1% by weight of antifoaming agent, 2-10% by weight of reactive diluent, and ceramic powder 29-66.9 100 parts by weight of A agent consisting of weight%; 10-30 parts by weight of B agent composed of 60-90% by weight of polyamine and 10-40% by weight of aminosilane; Waterproof flooring using a fiber sheet consisting of 10-30 parts by weight of the fiber sheet coated with plasma polymerized polymer. [Formula 1]

In the above formula, n is an integer of 1-25. The waterproof flooring material using a fiber sheet according to claim 1, wherein the polymerizable gas forming the plasma polymerized polymer is selected from hydrocarbon, organosilicon, hydrogen fluoride, or a mixture of organosilicon and oxygen. The waterproof flooring material using a fiber sheet according to claim 1, wherein the fiber sheet repeatedly holes holes in a nonwoven fabric or a woven fabric. Mixing agent A and agent B on site and primer coating the concrete floor; Fixing the fiber sheet coated with the plasma polymerized polymer to the primer-coated concrete surface; A method of constructing a waterproof flooring using a fiber sheet consisting of a step of mixing the agent A and agent B on the site again and pour it onto the fiber sheet and spread it out.

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