KR100274123B1 - Latent heat-storage flooring and method for the preparation thereof - Google Patents

Abstract

The present invention includes a phase change organic compound latent heat storage material, which is microencapsulated by coating a phase change organic compound such as aliphatic or aromatic compound having latent heat with a polymer material, in one or more layers of the flooring material to heat heat. It relates to a flooring material having a latent heat storage effect to accumulate and release heat when heating is stopped, and a method of manufacturing the same.

Description

Flooring material with latent heat storage effect and manufacturing method thereof

The present invention relates to a flooring material having a latent heat storage effect and a method of manufacturing the same, and more particularly, to actively use energy in accordance with an increase in energy demand due to improved living standards and to actively reduce the heating cost of a house. By using organic compounds such as aliphatic and aromatic compounds as high-efficiency heat storage materials with latent heat accompanying phase change to accumulate heat, it accumulates heat during construction after construction and releases heat continuously for a certain time when heating supply is interrupted. It relates to a flooring material having a latent heat storage effect that can be maintained for a long time and a method of manufacturing the same.

In general, alternative energy sources such as solar energy, waste heat energy, and electrical energy are low-level energy that fluctuates and disperse temporally and qualitatively. In order to stabilize, uniformize, and use them as concentrated high-level energy, it is necessary to develop an energy storage method.

The storage of energy is to store various forms of energy in appropriate forms, and to recover and use them at appropriate levels at the required place and time. The purpose is to effectively utilize natural energy or to manage already produced energy.

Energy storage methods include chemical storage methods using chemical reactions, electromagnetic storage methods, mechanical storage methods, and thermal storage methods.

Among the energy storage methods, thermal storage methods that are emerging as an important development field include sensible heat storage, which is a method of storing thermal energy using sensible heat, and latent heat storage, which is a method of storing thermal energy by using latent heat. An example is Ondol.

Ondol is a traditional method of heating in Korea, and has been a pronoun of floor heating since ancient times, and it is still the main means of heating. In recent years, ondol is transformed and developed in various ways by newly evaluating the pleasant heating effect due to its unique radiant heat. It has a lot of influence on our architectural style and residential life.

Sensible heat storage is a long history of heat storage methods, and the technology is relatively simple and is in a very advanced stage.

Most of the sensible heat storage methods currently used in the ondol structure use crushed stone and gravel as sensible heat storage materials, which require low amounts of heat storage density and low heat storage density to store a large amount of energy. It has a disadvantage that it requires a large space to store them, and in particular, it is difficult to maintain a comfortable indoor environment due to the large change in room temperature and floor temperature.

On the other hand, the latent heat is heat absorbed and released at isothermal temperature during the phase change of a material, such as 80 mW / g of fusion heat absorbed when ice melts and 540 mW / g evaporation heat absorbed when water evaporates.

The latent heat storage using this latent heat can store more heat per unit volume or per unit weight than the sensible heat storage.

In order for phase change material (PCM) to be used as a latent heat storage material, the transition temperature must be the desired temperature range, the heat capacity and latent heat must be large, the supercooling phenomenon must be small, and it is not toxic, flammable, environmental pollution-free and chemically stable. It should be available and reproducible.

The study of latent heat storage using phase change materials has already begun in 1928, and the full-scale study began with the publication of a 1947 manure (glauber's salt: Na ₂ SO ₄ · 10H ₂ O).

In 1975 and 1980, several phase change materials were used in the United States, Japan, and France. Hydrates such as Na ₂ SO ₄ , CaCl ₂ , and NaHSO ₄ were put in plastic containers or high density polyethylene (HDPE). I use it. In addition, companies such as Dow Chemical and Calmac are producing latent heat accumulators.

As interest in latent heat storage materials has increased in Korea, the Korea Institute of Science and Technology has developed a latent heat storage material whose main component is Na ₂ SO ₄ · 10H ₂ O, and the Institute of Power Resources has applied CaCl ₂ · 6H ₂ O to the field of thermal energy storage. Efforts are being made to

However, the inorganic hydrates have various problems, such as the limitation of processing conditions due to heat loss, and the problems of phase separation and severe supercooling. It has been an obstacle in practical use, and the improvement of thermal response was required for practical application.

In order to solve the problems of the inorganic hydrate and to improve the applicability, research has been conducted to prepare the inorganic hydrate into spherical particles and then microencapsulate the latent heat storage material. As a result, the capsule was broken, and thus it was impossible to apply it to a polyvinyl chloride (PVC) flooring material having a processing temperature of 150 ° C or higher.

On the other hand, in order to apply the latent heat storage material to the flooring it is necessary to grasp the current conditions of the domestic heating of the house and the analysis results are as follows.

First, the room temperature distribution of the space on which the ondol is installed shows that the room temperature rapidly increases to the height of about 15 cm from the floor surface during heating, but the temperature is almost constant at the upper part.

Second, in the case of apartments, the room temperature varies slightly depending on the heating method, size, and location.

Third, when 55 degrees Celsius hot water is supplied, the bottom surface temperature is maintained at 32 to 38 degrees Celsius on average.

Fourth, seasonal hot water supply temperature conditions for homes with boilers are 50 ℃ in late spring and early autumn, 70 ℃ in early spring and late autumn, and 85 ℃ in winter and hot water.

Accordingly, in the present invention, an aliphatic or aromatic substance having a melting point of 10 to 100 ° C., preferably 30 to 80 ° C., as a phase change material that satisfies the latent heat storage material condition in consideration of the floor temperature in the analysis result of the home heating condition. Organic compounds such as compounds are used as phase change materials and coated with high molecular materials to microencapsulate them to a size of about 0.1 μm or more, eliminating problems of inorganic hydrates, which are conventional phase change materials, and improving thermal response and enabling high temperature processing. The present invention provides a flooring material having a latent heat storage effect and a method of manufacturing the same by incorporating a phase change organic compound latent heat storage material in one or more layers of a PVC flooring material.

At this time, organic compounds such as aliphatic or aromatic compounds are somewhat more expensive and have lower thermal conductivity than inorganic hydrates, but there are many options for heat storage per unit volume and a wide range of melting points. It has the advantages of small size, low vapor pressure of melt, no supercooling phenomenon, easy processing, especially high temperature processing, and wide application range.

1 is a cross-sectional view of the flooring according to the invention.

Figure 2 is a manufacturing process of the flooring according to the present invention.

3 to 9 are cross-sectional views of another flooring according to the present invention.

10 is a cross-sectional view of the latent heat storage material of the phase change organic compound used in the present invention.

11 is a cross-sectional view of Embodiment 1 of the present invention.

12 is a sectional view of Embodiment 2 of the present invention;

(Explanation of symbols for the main parts of the drawing)

10: substrate layer 20: surface layer

21: foam layer 22: non-foaming layer

23: printed layer 24: skin layer

25: UV layer 30: back layer

31 foam layer 32 mechanical foam layer

33: sizing layer 40: phase change organic compound latent heat storage material

41: phase change material particles 42: polymer material coating layer 1

43: polymer coating layer 2

The flooring according to the present invention has a structure in which a plurality of layers are laminated by calendering or sol coating, and is composed of a surface layer and a backing layer mainly on a base layer. It can be subdivided into foam layer, printed layer, skin layer, UV curable coating layer (hereinafter referred to as “UV layer”), and the back layer can be subdivided into foam layer, mechanical foam layer, sizing layer under substrate layer or under substrate layer. In turn, can be subdivided into sizing layers, foam layers or mechanical foam layers. Here, the "foaming layer" refers to a chemically foamed layer, and only the mechanically foamed layer is specifically called a "mechanical foamed layer".

The above subdivided layers in the surface layer and the back layer may be partially omitted as necessary.

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

In FIG. 1, the flooring according to the present invention includes a base layer 10, a surface layer 20 above the base layer 10, and a back layer 30 below the base layer 10.

At this time, the surface layer 20 has a structure in which the foam layer 21 or the non-foaming layer 22, the print layer 23, the skin layer 24 and the UV layer 25 are sequentially stacked on the base layer 10, The layer 30 has a structure in which a foam layer 31, a mechanical foam layer 32, and a sizing layer 33 are sequentially formed below the base layer 10. The foam layer 31, the mechanical foam layer 32, and the sizing layer 33 of the back layer 30 are reversed in order so that the sizing layer 33, the foam layer 31, or the mechanical foam under the substrate layer 10 is in turn. A structure in which the layer 32 is formed is also possible.

Referring to the method of manufacturing a flooring material according to the present invention in Figure 2 first to prepare a base layer 10 to impart dimensional stability of the product.

The base material layer 10 is press-coated and kneaded the composition of the base material layer 10 to a thickness of 0.38 to 0.50 mm on a substrate such as glass fiber, imitation paper, etc. at a speed of 40 to 50 m / min. In an oven at 130 to 200 ° C. The gel is formed by heating for 1 to 2 minutes.

At this time, the composition of the base layer 10 is 20 to 50 parts by weight of dioctylphthalate (DOP: butylbenzylphthalate) as a plasticizer in 100 parts by weight of PVC having a polymerization degree of 1000 to 3000, 15 to 50 parts by weight of butylbenzylphthalate (BBP), 1 to 10 parts by weight of a barium zinc compound as a stabilizer, 1 to 20 parts by weight of titanium oxide as a pigment, 1 to 170 parts by weight of calcium bicarbonate as a filler, and 1 to 5 parts by weight of epoxy resin for long-term low-temperature heat reinforcement as other additives (豆油) is used, so no curing agent is required.

On this base material layer 10, the foam layer 21 which gives a cushion feeling is formed, or the non-foaming layer 22 which gives the hardness of a product is formed.

The foam layer 21 is formed by gel coating the composition of the foam layer 21 to a thickness of 0.1 to 0.3 mm, and then gelling it by heating in an oven at 150 to 200 ° C. at a speed of 40 to 50 m / min. For 1 to 2 minutes. Let's do it.

The composition of the foam layer 21 is 40 to 60 parts by weight of DOP as a primary plasticizer, 10 to 20 parts by weight of paraffinic compound as a secondary plasticizer, and azodicarbonamide as a foaming agent in 100 parts by weight of PVC having a polymerization degree of 1000 to 2000. 2 to 5 parts by weight, 2 to 4 parts by weight of zinc oxide as a foaming accelerator, 1 to 3 parts by weight of barium zinc compound as a foam stabilizer, 1 to 5 parts by weight of titanium oxide as a pigment, 1 to 150 parts by weight of calcium bicarbonate as a filler, and the like. As an additive, 0.2-1.5 weight part of viscosity reducing agents are mixed.

The non-foaming layer 22 is gelled by knife coating the composition of the non-foaming layer 22 to a thickness of 0.1 to 0.3 mm, and then heated in an oven at 150 to 200 ° C. at a rate of 40 to 50 m / min. To form.

The composition of the non-foaming layer 22 is 20 to 40 parts by weight of DOP, which is a primary plasticizer, 10 to 20 parts by weight of BBP, and 10 to 20 parts by weight of a paraffinic compound, which is a secondary plasticizer, in 100 parts by weight of PVC having a polymerization degree of 1000 to 3000. 1 to 150 parts by weight of calcium bicarbonate as a filler, 1 to 5 parts by weight of titanium oxide as a pigment, 1 to 10 parts by weight of barium zinc compound as a heat stabilizer, and 1 to 5 parts by weight of epoxy resin for long-term low temperature heat reinforcement Is used, so no curing agent is required).

A predetermined pattern is printed on the foamed layer 21 or the non-foamed layer 22 by gravure printing, screen printing, or transfer printing to form a printed layer 23 and dried, and then transparency on the printed layer 23. And a skin layer 24 for imparting durability and protecting the pattern of the printing layer 23.

Skin layer 24 is knife-coated a material of the skin layer 24 to a thickness of 0.2 ~ 0.5mm on the printing layer 23, and then 1 ~ at a speed of 10 ~ 30m / min. In an oven at 180 ~ 210 ℃ Form by heating for 2 minutes to gel.

The composition of the skin layer 24 is 30 to 60 parts by weight of DOP, which is a primary plasticizer, 10 to 20 parts by weight of paraffin compound, which is a secondary plasticizer, and barium-zinc, which is a heat stabilizer, in 100 parts by weight of PVC having a polymerization degree of 1500 to 3000. 2 to 10 parts by weight of the compound, 2 to 5 parts by weight of epoxy resin for long-term low temperature heat reinforcement (no curing agent is necessary because soymilk is used) and 0.2 to 5 parts by weight of viscosity reducing agent are mixed.

Next, the foam layer 31 giving a cushioning feeling is formed below the base layer 10, or the mechanical foaming layer 32 which gives a cushioning feeling is also formed.

The foam layer 31 is formed by gel-coating the composition of the foam layer 31 to a thickness of 0.2 to 1.0 mm and then gelled by heating in an oven at 150 to 180 ° C. at a rate of 5 to 50 m / min. For 20 to 90 seconds. .

The composition of the foam layer 31 is 20 to 80 parts by weight of DOP as a primary plasticizer, 10 to 20 parts by weight of BBP, 10 to 20 parts by weight of a secondary plasticizer paraffinic compound, in 100 parts by weight of PVC having a polymerization degree of 500 to 4000, 1 to 20 parts by weight of organic pigment, 1 to 10 parts by weight of azodicarbonamide as a blowing agent, 1 to 4 parts by weight of zincation as a foaming accelerator, 1 to 10 parts by weight of barium zinc compound as a foam stabilizer, and barium-a as a foaming cell regulator 0.2-1.0 weight part of linking compounds, 1-5 weight part of titanium oxides which are pigments, and 1-250 weight part of calcium bicarbonates which are fillers are mixed.

The mechanical foam layer 32 is subjected to knife coating of the composition of the mechanical foam layer 32 to a thickness of 2 to 5 mm and then gelled by heating in an oven at 150 to 200 ° C. at a speed of 10 to 30 m / min. To form.

The mechanical foam layer 32 is composed of 40 to 70 parts by weight of DOP, a plasticizer, 1 to 10 parts by weight of BOP, and 2 to 5 parts by weight of a barium-zinc compound as a heat stabilizer. And 5 to 20 parts by weight of the silicone resin (dissolved in dioctyl adipate) as the foaming agent, 0.2 to 1.5 parts by weight of the viscosity reducing agent and 1 to 60 parts by weight of calcium bicarbonate as the filler, depending on the processing conditions, and added to the mechanical foam mixer. After blowing the compressed air and foaming by stirring at high speed.

Under the foam layer 31 or the mechanical foam layer 32, a sizing layer 33 for imparting hardness of the product is formed. The sizing layer 33 is formed by gel-coating the composition of the sizing layer 33 to a thickness of 0.5 to 1.0 mm and then gelled by heating in an oven at 170 to 210 ° C. at a rate of 5 to 50 m / min. For 30 to 180 seconds. . At this time, the foam layer 21 and the foam layer 31 is foamed.

The composition of the sizing layer 33 is 20 to 80 parts by weight of DOP as the primary plasticizer, and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate 5 to 30 to 100 parts by weight of PVC having a polymerization degree of 1000 to 3000. Parts by weight, 5 to 20 parts by weight of paraffin-based compound, 1 to 20 parts by weight of titanium oxide as a pigment, 1 to 10 parts by weight of barium zinc compound as a heat stabilizer, 1 to 250 parts by weight of calcium bicarbonate as a filler and other additives as long-term low temperature. 1 to 5 parts by weight of epoxy resin for heat-resistant reinforcement (no curing agent is required because soymilk is used), 2 to 30 parts by weight of yellow soil (soil), and 1 to 10 parts by weight of organic pigment. At this time, the ocher and organic pigments are to give color and functionality and mixed as necessary.

Finally, the UV layer 25 is formed on the skin layer 24 to maintain the surface strength. The UV layer 25 is air knife coated with a composition of the UV layer 25 to a thickness of 15 to 30 μm and then cured with ultraviolet rays.

The composition of the UV layer 25 is 60 to 70 parts by weight of the urethane acrylate oligomer as a main component, 30 to 40 parts by weight of ethylene or propylene acrylate monomers for dilution of the oligomer, viscosity adjustment and adhesion increase, and 2 to 5 parts by weight of ketone as a photoinitiator. In addition, about 1 weight part of silicones as an antifoamer, and 0.5-3 weight part of silicones as a leveling agent are mixed.

The UV layer 25, the foam layer 21 or the non-foaming layer 22, the sizing layer 33 can be omitted in the manufacturing of the flooring according to the present invention by such a manufacturing method and seen in Figures 3 to 9 Another flooring according to the invention omits one or more of these layers. The other flooring material according to the present invention also includes a base layer 10, a surface layer 20 above the base layer 10, and a back layer 30 below the base layer 10.

3 to 5 illustrate a structure in which one of the UV layer 25, the foam layer 21 or the non-foaming layer 22, and the sizing layer 33 is omitted, and FIG. 3 shows the sizing layer 33. 4 shows the flooring material in which the foam layer 21 or the non-foaming layer 22 is omitted, and FIG. 5 omits the UV layer 25.

In FIG. 3, the surface layer 20 is formed by laminating the foam layer 21 or the non-foaming layer 22, the print layer 23, the skin layer 24 and the UV layer 25 on the substrate layer 10 in order. The back layer 30 is a structure in which the foam layer 31 or the mechanical foam layer 32 is formed.

In FIG. 4, the surface layer 20 has a structure in which the print layer 23, the skin layer 24, and the UV layer 25 are laminated on the substrate layer 10 in sequence, and the back layer 30 is the substrate layer 10. The foam layer 31, the mechanical foam layer 32, and the sizing layer 33 are formed in order below.

At this time, the foam layer 31, the mechanical foam layer 32, and the sizing layer 33 of the back layer 30 are reversed in order so that the sizing layer 33, the foam layer 31, or the mechanical layer under the substrate layer 10 is in turn. The structure in which the foam layer 32 is formed is also possible.

In FIG. 5, the surface layer 20 has a structure in which the foam layer 21 or the non-foaming layer 22, the print layer 23, and the skin layer 24 are laminated on the substrate layer 10 in sequence, and the back layer 30 is formed. ) Is a structure in which the foam layer 31 or the mechanical foam layer 32 and the sizing layer 33 are sequentially formed below the base layer 10.

In addition, the foaming layer 31, the mechanical foaming layer 32, and the sizing layer 33 of the back layer 30 are reversed in order so that the sizing layer 33, the foaming layer 31, or the substrate layer 10 is sequentially below. The structure in which the mechanical foam layer 32 is formed is also possible.

6 to 8 show a structure in which two layers of the UV layer 25, the foam layer 21 or the non-foaming layer 22, and the sizing layer 33 are omitted, and FIG. 6 shows the foam layer 21 or the non-foaming layer. (22) and the sizing layer 33, FIG. 7 omits the UV layer 25 and the sizing layer 33, and FIG. 8 omits the UV layer 25 and the foam layer 21 or the non-foaming layer 22. Looks a flooring.

In FIG. 6, the surface layer 20 has a structure in which the print layer 23, the skin layer 24, and the UV layer 25 are laminated on the substrate layer 10 in sequence, and the back layer 30 has the foam layer 31. Or a mechanical foam layer 32 is formed.

In FIG. 7, the surface layer 20 has a structure in which the foam layer 21 or the non-foaming layer 22, the print layer 23, and the skin layer 24 are stacked on the base layer 10 in turn, and the back layer 30 is formed. ) Is a structure in which the foam layer 31 or the mechanical foam layer 32 is formed.

In FIG. 8, the surface layer 20 has a structure in which the print layer 23 and the skin layer 24 are laminated on the substrate layer 10 in sequence, and the back layer 30 has a foam layer (in order below the substrate layer 10). 31) or the mechanical foam layer 32 and the sizing layer 33 is formed.

At this time, the foam layer 31, the mechanical foam layer 32, and the sizing layer 33 of the back layer 30 are reversed in order so that the sizing layer 33, the foam layer 31, or the mechanical layer under the substrate layer 10 is in turn. The structure in which the foam layer 32 is formed is also possible.

9 is a bottom material omitting all of the UV layer 25, the foam layer 21 or the non-foaming layer 22, and the sizing layer 33. The surface layer 20 is sequentially printed on the substrate layer 10. And a skin layer 24 is laminated, and the back layer 30 is a structure in which the foam layer 31 or the mechanical foam layer 32 is formed.

One layer or two or more layers constituting the flooring according to the present invention contains 1 wt% or more of the phase change organic compound latent heat storage material per layer.

10 is a cross-sectional view of a phase change organic compound latent heat storage material 40 contained in a flooring according to the present invention, with a phase change material particle 41 in the center, and a polymer coating layer 1 (42) and a polymer coating layer 2 around the particles. The latent heat storage material of phase change organic compound consisting of (43) is shown.

The phase change organic compound latent heat storage material 40 is made of organic compounds such as aliphatic or aromatic compounds of Tables 1a and 1b below as phase change materials, and there are fine pores therein, and the surface is smooth spherical particles 41. After manufacturing, using a rotor tangential spray coater (Rotator tangential spray coater) is a polymer material such as polymethylmethacrylate (PMMA: polymethylmethacrylate) or polyurethane (PU: polyurethane) having good heat resistance, chemical resistance and water resistance or It is coated with two layers and microencapsulated. It eliminates the problems of phase separation and supercooling of inorganic hydrates used as phase change materials, improves thermal response, and enables high temperature processing. The diameter is 0.1 to 10.1 mm. .

matter Melting Point (℃) Latent heat of fusion (㎈ / g) Thermal Conductivity × 10 ⁴ (㎈ / cms ℃) Solid (Liquid) Density (g / cm 3) Solid (Liquid) Specific heat (㎈ / g ℃) solid (liquid) Propionamide 84 40.2 1.0 naphthalene 83 35.3 8.3 (3.2) 1.10 (0.97) 0.34 (0.39) Acetamide (5.9) 1.16 Biphenyl 71 28.5 0.98 (0.96) Stearic acid (pure) 69 48.4 7.9 (3.8) 0.48 (0.55) Polyglycol (E6000) 66 45.4 8.5 1.20 (1.08) Wax 64 41.5 8.3 (4.0) 0.88 (0.51) Palmitic acid 63 44.5 (3.9) (0.85) Myristic acid 57 47 (3.2) (0.86) 0.38 (0.54) Stearic acid (tech) 50 to 66 38 Ethyllignocerate 54 51.6 Kampen 50 57 0.87 3­heptadecanone 48 52 Cyanamide 44 49.5 7.9 (4.9) 0.39 (0.51) Lauric acid 42-44 42.38 (3.5) (0.87) 0.38 Caprolone 40 61.6

matter Melting Point (℃) Latent heat of fusion (㎈ / g) Thermal Conductivity × 10 ⁴ (㎈ / cms ℃) Solid (Liquid) Density (g / cm 3) Solid (Liquid) Specific heat (㎈ / g ℃) solid (liquid) 75% lauric acid + 25% stearic acid 34 39 Trimyriline 33 48.7 0.89 Capric acid 31.5 36.43 (3.55) (0.89) Dicylactic acid 21 35.5 0.41 (0.63) Caprylic acid 16.3 35.5 (3.52) 1.05 (0.86) Polyglycol (E400) 8 23.2 7.3 (4.1) 1.12 (1.00) (0.52)

Example 1

On the substrate of glass fiber, imitation paper, etc., 24 parts by weight of plasticizer DOP, 17 parts by weight of BBP, 2.5 parts by weight of barium zinc compound as stabilizer, 2 parts by weight of titanium oxide as pigment, 2 parts by weight of titanium oxide as filler, and calcium bicarbonate as filler. 170 parts by weight and a composition made by mixing 3 parts by weight of epoxy resin as a pressure-sensitive adhesive coating to a thickness of 0.38mm, and then gelled by heating for 1 minute 30 seconds at a speed of 40 m / min. In an oven at 160 ℃ (10) was prepared.

50 parts by weight of DOP, which is a primary plasticizer, 15 parts by weight of paraffinic compound, which is a secondary plasticizer, 3 parts by weight of azodicarbonamide, which is a blowing agent, and galvanization 2, which is a foaming accelerator, on 100 parts by weight of PVC having a polymerization degree of 1200 on the base layer 10. Part by weight, 1 part by weight of the barium zinc-based compound as a foam stabilizer, 2 parts by weight of titanium oxide as a pigment, 50 parts by weight of calcium bicarbonate as a filler and 0.3 parts by weight of a viscosity reducing agent as other additives on the base layer 10 Knife-coated to a thickness of 0.20 mm and then heated in a oven at 180 ° C. at a rate of 30 m / min. For 1 minute and 30 seconds to gel and foam to form a foam layer 21. Then, a pattern on the foam layer 21 was formed. After printing to form a printed layer 23 and dried, 25 parts by weight of the primary plasticizer DOP 25 parts by weight of the primary plasticizer, 12 parts by weight of the paraffinic compound of the secondary plasticizer on 100 parts by weight of PVC having a polymerization degree of 1700 on the printed layer 23, 3 parts by weight of a barium-zinc compound, a heat stabilizer, The composition prepared by mixing 3 parts by weight of the epoxy resin and 0.2 parts by weight of the viscosity reducing agent was knife coated with a thickness of 0.2 mm, and then gelled by heating in an oven at 200 ° C. at a rate of 20 m / min. For 1 minute and 20 seconds. ) Was formed.

Thereafter, 60 parts by weight of DOP as a plasticizer, 10 parts by weight of BBP, 3 parts by weight of a barium-zinc compound as a heat stabilizer, and a silicone resin as a blowing agent under 100 parts of PVC having a polymerization degree of 1700 under the base layer 10. Dissolved in pate) 5 parts by weight, 0.2 parts by weight of a viscosity-reducing agent and 10 parts by weight of calcium bicarbonate as a filler were mixed, introduced into a mechanical foam mixer, blown with compressed air and foamed by rapid stirring to form a phase change organic compound. 10 wt% of the compound latent heat storage material was knife-coated to a thickness of 2.7 mm, and then gelled by heating in an oven at 180 ° C. at a rate of 15 m / min. For 2 minutes and 30 seconds to form a mechanical foam layer 32.

Furthermore, a composition made by mixing 65 parts by weight of a urethane acrylate oligomer, 30 parts by weight of propylene acrylate monomer, 3 parts by weight of ketone as a photoinitiator, 1 part by weight of silicon as an antifoaming agent and 0.5 parts by weight of silicon as a leveling agent on the skin layer 24. The flooring having a latent heat effect according to the present invention was prepared by air-knife coating with a thickness of 20 μm and then curing with ultraviolet rays to form a UV layer 25. (Figure 11)

The phase change organic compound latent heat storage material 40 used at this time is made of myristic acid (myristic acid) as a phase change material and manufactured into spherical particles 41 having a size of 0.5 to 1.0 mm and then using a rotating tangential spray coating machine. To form a polymer material layer 1 (42) having a thickness of 5 to 10 탆 with polymethyl methacrylate, and to form a polymer material layer 2 (43) having a thickness of 15 to 20 탆 with polyurethane. ~ 1.03mm, good thermal response to cycle test, and excellent mechanical strength.

Example 2

On the substrate of glass fiber, imitation paper, etc., 24 parts by weight of plasticizer DOP, 17 parts by weight of BBP, 2.5 parts by weight of barium zinc compound as stabilizer, 2 parts by weight of titanium oxide as pigment, 2 parts by weight of titanium oxide as filler, and calcium bicarbonate as filler. 170 parts by weight and a composition made by mixing 3 parts by weight of epoxy resin as a pressure-sensitive adhesive kneading coating to a thickness of 0.40mm and then gelated by heating in an oven at 160 ℃ for 1 minute 30 seconds at a rate of 40 m / min. (10) was prepared.

On the base layer 10, 100 parts by weight of PVC having a polymerization degree of 1700, 32 parts by weight of DOP as a primary plasticizer, 22 parts by weight of BBP, 16 parts by weight of paraffinic compound as a secondary plasticizer, 90 parts by weight of calcium bicarbonate as a filler, and pigment A composition made by mixing 5 parts by weight of titanium oxide, 2.5 parts by weight of a barium zinc compound as a heat stabilizer, and 3 parts by weight of an epoxy resin was knife-coated to a thickness of 0.20 mm on the substrate layer 10, and then 35 m in an oven at 180 ° C. After heating for 1 minute and 10 seconds at a rate of / min. To form the non-foaming layer 22, a pattern is printed on the non-foaming layer 22 to form a printed layer 23, and then dried. (23) 30 parts by weight of DOP as a primary plasticizer, 8 parts by weight of paraffinic compound as secondary plasticizer, 8 parts by weight of paraffin compound as secondary plasticizer, 2.5 parts by weight of barium-zinc compound as heat stabilizer, 3 parts by weight of epoxy resin, A composition made by mixing 0.3 parts by weight of a viscosity reducing agent to a thickness of 0.20 mm After knife coating, the gel layer was formed by heating for 40 seconds at a rate of 20 m / min. In an oven at 170 ° C. to form a skin layer 24.

Subsequently, under the base layer 10, 100 parts by weight of PVC having a polymerization degree of 1200, 42 parts by weight of a primary plasticizer DOP, 10 parts by weight of BBP, 10 parts by weight of a secondary plasticizer paraffinic compound, 5 parts by weight of an organic pigment, and a foaming agent 3.5 parts by weight of azodicarbonamide, 2.8 parts by weight of zinc oxide as a foaming accelerator, 1.4 parts by weight of barium zinc compound as a foam stabilizer, 0.4 parts by weight of barium-zinc compound as a foaming cell regulator, 2 parts by weight of titanium oxide as a pigment and a filler 85 weight% of the composition prepared by mixing 60 weight parts of calcium bicarbonate and 15 weight% of the latent heat storage material of phase change organic compound was knife-coated to a thickness of 0.5 mm, and then 40 seconds at a speed of 20 m / min in an oven at 180 ° C. After heating and gelling to form the foam layer 31, 35 parts by weight of DOP as a primary plasticizer, 2,2,4-trimethyl-1,3 under 100 parts of PVC having a polymerization degree of 2000 under the foam layer 31 -Pentanediol diisobutyrate 13 parts by weight, paraffinic 17 parts by weight of a compound, 8 parts by weight of titanium oxide as a pigment, 3 parts by weight of a barium zinc compound as a heat stabilizer, 90 parts by weight of calcium bicarbonate as a filler, 3 parts by weight of epoxy resin as an additive, 5 parts by weight of ocher (soil), organic 90% by weight of the composition prepared by mixing 1 part by weight of a pigment containing 10% by weight of the phase change organic compound latent heat storage material was knife coated to a thickness of 0.2 mm, and then subjected to a speed of 20 m / min. In an oven at 200 ° C. for 30 minutes. The foam layer 31 was foamed at the same time as the sizing layer 33 was formed by heating and gelling for a second.

Furthermore, a composition made by mixing 65 parts by weight of a urethane acrylate oligomer, 30 parts by weight of ethylene acrylate monomer, 3 parts by weight of ketone as a photoinitiator, 1 part by weight of silicon as an antifoaming agent and 0.5 parts by weight of silicon as a leveling agent on the skin layer 24. The flooring having a latent heat effect according to the present invention was prepared by air-knife coating with a thickness of 25 μm and then curing with ultraviolet rays to form a UV layer 25. (Figure 12)

At this time, the latent heat storage material 40 was prepared by using stearic acid as a phase change material and made into spherical particles 11 having a size of 0.5 to 0.8 mm, and then polymethyl methacryl using a rotary tangential spray coating machine. A microcapsule was formed by forming a polymer material layer 1 (12) having a thickness of 5 to 10 탆 at a rate and a polymer material layer 2 (13) having a thickness of 15 to 20 탆 with a polyurethane. The size was 0.52 to 0.83 mm and cycled. The thermal response to the test was good and the mechanical strength was good.

The latent heat storage effect of the flooring according to the present invention was confirmed by measuring the heat radiation energy using a heat radiation characteristic test apparatus of the Korea Institute of Energy Research.

The base layer 10 is formed, and the foam layer 21 or the non-foaming layer 22, the print layer 23, and the skin layer 24 are sequentially formed on the base layer 10, and under the base layer 10. In the flooring material in which the UV layer 25 is formed on the skin layer 24 after the mechanical foam layer 32 is formed, myristic acid is used as the phase change material in the mechanical foam layer 32 and polyurethane is used. The flooring according to the present invention containing 10 wt% of the phase change organic compound latent heat storage material obtained by single coating with the same, but the same in the basic structure of the flooring material, but does not contain the phase change organic compound latent heat storage material in the mechanical foam layer 32 After heating the conventional flooring material at 60 degreeC for 30 minutes, the heat radiation energy was measured.

The graph below shows the result.

The bottom curve shows the heat radiation energy of the conventional flooring material which does not contain the phase change organic compound latent heat storage material, and all three curves above the phase change according to the present invention differ only in other experimental conditions such as cooling rate. By showing the heat radiation energy of the flooring material containing the latent heat storage material of the organic compound was confirmed that the heat radiation energy of such a conventional flooring material is the smallest and the flooring material according to the present invention shows an excellent latent heat storage effect.

(graph)

Claims (16)

In the flooring consisting of the surface layer 20 composed of several layers, the base layer 10 and the backing layer 30 composed of one or two or more layers, the latent heat storage of the phase change organic compound in one or more layers Flooring having a latent heat storage effect, characterized in that the ash contained at least 1% by weight per layer. The flooring material having a latent heat storage effect according to claim 1, characterized in that the surface layer (20) consists of a printing layer (23) and a skin layer (24) in order from the base layer (10). The flooring material having a latent heat storage effect according to claim 1, wherein the surface layer (20) consists of a printing layer (23), a skin layer (24) and a UV layer (25) sequentially from the base layer (10). The latent heat storage according to claim 1, wherein the surface layer (20) consists of the foam layer (21) or the non-foaming layer (22), the print layer (23), and the skin layer (24) in order from the base layer (10). Flooring with effect. The surface layer (20) according to claim 1, consisting of a foam layer (21) or a non-foaming layer (22), a print layer (23), a skin layer (24), and a UV layer (25) in order from the base layer (10). Flooring having a latent heat storage effect, characterized in that. The flooring material having a latent heat storage effect according to claim 2, 3, 4 or 5, characterized in that the back layer (30) consists of a foam layer (31) or a mechanical foam layer (32). 6. The back surface layer (30) according to claim 2, 3, 4 or 5, in turn from the base layer (10) to the foam layer (31) or the mechanical foam layer (32) and the sizing layer (33). Flooring having a latent heat storage effect, characterized in that made. 6. The back surface layer (30) according to claim 2, 3, 4 or 5, from the base layer (10) to the sizing layer (33) and the foam layer (31) or the mechanical foam layer (32). Flooring having a latent heat storage effect, characterized in that made. The base material layer 10 is compressed and kneaded and heated in an oven to gel to prepare a base material layer 10, and the foam layer 21 composition or the non-foaming layer 22 composition and the print layer (on the base material layer 10). 23) One or two or more of the composition, the skin layer 24 composition, and the UV layer 25 composition are selected and knife-coated in turn, and heated in an oven to gel or foam to form the surface layer 20, and the base layer 10 1) or 2 of the foam layer 31 composition, the mechanical foam layer 32 composition, or the sizing layer 33 composition are selected in turn, and then knife coated and heated in an oven to gel or foam to form the back layer 30. A method of manufacturing a formed flooring material, wherein the one or more layers of the flooring material contains a phase change organic compound latent heat storage material 1% by weight or more per layer, the method for producing a flooring material having a latent heat storage effect. 10. Method according to claim 9, characterized in that the surface layer (20) consists of the printing layer (23) and the skin layer (24) in turn from the base layer (10). 10. The method of claim 9, wherein the surface layer 20 is made from the base layer 10 in order to produce a flooring having a latent heat storage effect, characterized in that consisting of a print layer 23, skin layer 24 and UV layer 25 Way. 10. The latent heat storage according to claim 9, wherein the surface layer (20) consists of the foam layer (21) or the non-foaming layer (22), the print layer (23), and the skin layer (24) in order from the base layer (10). How to manufacture flooring with an effect. 10. The surface layer (20) according to claim 9, consisting of a foam layer (21) or a non-foaming layer (22), a print layer (23), a skin layer (24), and a UV layer (25) in order from the base layer (10). Method for producing a flooring having a latent heat storage effect, characterized in that. The flooring material having a latent heat storage effect according to claim 10, 11, 12 or 13, characterized in that the back layer 30 is made of a foam layer 31 or a mechanical foam layer 32. How to. The method according to claim 10, 11, 12 or 13, wherein the backing layer 30 is sequentially from the base layer 10 to the foam layer 31 or the mechanical foam layer 32 and the sizing layer 33. Method for producing a flooring having a latent heat storage effect, characterized in that made. The method according to claim 10, 11, 12 or 13, wherein the backing layer 30 is in turn from the base layer 10 to the sizing layer 33 and the foam layer 31 or the mechanical foam layer (32). Method for producing a flooring having a latent heat storage effect, characterized in that made.