KR102001489B1 - Eco-friendly sofa - Google Patents

Abstract

The present invention relates to an eco-friendly sofa which comprises: a primer layer (200) applied to be formed on a sofa substrate (100); a coating layer (300) applied to be formed on the primer layer (200); and a surface modification layer (400) applied to be formed on the coating layer (300). According to the present invention, the eco-friendly sofa is coated on a sofa surface to have antibiosis and antifungus. Moreover, volatile organic compounds (VOSs) causing environmental pollution can be prevented from being discharged, thereby securing innocuousness to a user body and increasing durability of the sofa surface.

Description

Eco-friendly sofa {ECO-FRIENDLY SOFA}

The present invention relates to an environmentally friendly sofa, and more particularly, to an environmentally friendly sofa which is coated on the surface of a sofa and has antibacterial and antifungal properties and does not emit volatile organic compounds (VOCs) And an eco-friendly sofa that can enhance the durability of the sofa surface.

A sofa is a chair that is used for resting at home or at the office, or for guest use. These sofas have a sofa for sale, which is made in various forms for various people to sit according to the usage environment, and a sofa for one person. The sofa may be integrally formed with the backrest portion for sitting on the back and the seat cushion member to be seated, or may be separated from the backrest portion and the cushion member, and is appropriately disposed in accordance with the space such as the living room or the room.

However, the conventional sofa has a problem in that natural leather or artificial leather constituting the cushion member or the backrest member is damaged by the body discharge such as sweat when the sofa comes into contact with the skin of the human body. In addition, both sides of the cushion member are supported by the armrest frame from the side There is a problem that the deformation amount of the cushion member is not sufficiently absorbed at the time of sitting and the seating feeling is lowered.

Korean Patent Laid-Open No. 10-2015-0123753 (published on Nov. 04, 2015) Domestic Registration No. 10-0978867 (registered on Aug. 24, 2010) Domestic Registration Practice No. 20-0163269 (registered on October 01, 1999)

The present invention relates to a cosmetic composition which is coated on the surface of a sofa and has antimicrobial and antifungal properties and which does not emit volatile organic compounds (VOCs) that cause environmental pollution, is harmless to the user's body, Friendly sofa.

The various problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

The eco-friendly sofa according to the present invention comprises a primer layer 200 formed on a sofa substrate 100, a coating layer 300 formed on the primer layer 200, and a coating layer 300 formed on the coating layer 300 Wherein the primer layer composition comprises 50 to 80 parts by weight of an acrylic monomer, 10 to 15 parts by weight of a reactive monomer, 1 to 3 parts by weight of a coupling agent, 0.1 to 1 part by weight of a catalyst and 10 to 20 parts by weight of water, wherein the acrylic monomer is at least one selected from the group consisting of butyl (meth) acrylate, methyl (meth) acrylate, acrylonitrile and acrylic acid methacrylic acid And at least one selected from the group consisting of aryl methacrylate and glycidyl methacrylate is used as the reactive monomer. (2-aminoethyl) -3-aminopropyltrimethoxysilane or 3-glycidoxypropyltrimethoxysilane (3-aminopropyltrimethoxysilane). Glycidoxypropyl trimethoxysilane), and at least one selected from ammonium persulphate (APS) or benzoyl peroxide (BPO) is used as the catalyst, and the coating layer 300 is formed of a coating layer composition. The coating layer composition 30 to 40 parts by weight of a liquid silicone resin, 10 to 20 parts by weight of an EVA polymer, 3 to 6 parts by weight of germanium, 1 to 3 parts by weight of biotite, 1 to 3 parts by weight of a whiteness wood powder, 1 to 3 parts by weight of a pozzolan 2 to 4 parts by weight of powder and 1 to 3 parts by weight of jade powder, wherein the surface modification layer (400) is formed of a surface modification layer composition, wherein the surface modification layer composition comprises a polyester 50 to 100 parts by weight of a resin, 10 to 20 parts by weight of 1,3,5-triglycidyl isocyanurate, 3 to 8 parts by weight of dodecanedioic acid and 5 to 15 parts by weight of additives By weight of the antioxidant, 1 to 3 parts by weight of the antioxidant, 0.5 to 1.5 parts by weight of the light stabilizer, 0.1 to 1.0 part by weight of the film forming agent and 1 to 3 parts by weight of the phosphorus monomer.

The details of other embodiments are included in the detailed description.

The environmentally friendly sofa according to the present invention is coated on the surface of a sofa and has antimicrobial and antifungal properties. It does not emit volatile organic compounds (VOCs) that cause environmental pollution, is harmless to the user's body, .

It will be appreciated that embodiments of the technical idea of the present invention can provide various effects not specifically mentioned.

1 is a schematic view showing a cross section of an environment-friendly sofa according to the present invention.

Advantages and features of the present invention, and methods of accomplishing the same, will be apparent from and elucidated with reference to the embodiments described hereinafter in detail. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

Hereinafter, an eco-friendly sofa according to the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic view showing a cross section of an environment-friendly sofa according to the present invention.

Referring to FIG. 1, the eco-friendly sofa according to the present invention may be formed of a plurality of layers coated on the surface of a sofa.

The eco-friendly sofa 10 according to the present invention includes a primer layer 200 applied on a sofa base 100, a coating layer 300 formed on the primer layer 200, And a surface modification layer 400 formed by coating.

The primer layer 200 is coated on the sofa substrate 100 and then dried to form a primer layer composition. The primer layer composition is cured on the surface of the sofa substrate 100 to form a coating film, Various kinds of gases (for example, O ₂ , CO _2, etc.) which cause the penetration or corrosion of water (H ₂ O) into contact with the surface of the sofa base material 100 Thereby preventing corrosion of the surface of the sofa substrate 100.

The primer layer composition may comprise an acrylic monomer, a reactive monomer, a coupling agent, a surfactant, a catalyst and water, wherein the primer layer composition comprises 50 to 80 parts by weight of an acrylic monomer, 10 to 15 parts by weight of a reactive monomer, To 3 parts by weight, 0.1 to 1 part by weight of catalyst and 10 to 20 parts by weight of water.

The acrylic monomer may be at least one selected from the group consisting of butyl (meth) acrylate, methyl (meth) acrylate, acrylonitrile, and acrylic acid methacrylic acid.

The reactive monomer may be used to improve the adhesion of the primer layer composition to the brush bristles 210 surface, wherein the reactive monomer may be one or more selected from aryl methacrylate or glycidyl methacrylate have.

The coupling agent may be selected from the group consisting of N- (2-aminoethyl) -3-aminopropyltrimethoxysilane or 3-glycidoxypropyl trimethoxysilane ) May be used.

The catalyst may be used to promote the reaction, and the catalyst may be at least one selected from ammonium persulphate (APS) or benzoyl peroxide (BPO).

The water is used as a solvent and can be used to control the viscosity of the primer layer composition.

The coating layer 300 is formed on the primer layer 200 and then dried to form a coating layer composition. The coating layer composition improves the adhesion to the surface of the primer layer 200 and increases far infrared rays and anions in a large amount 30 to 40 parts by weight of a liquid silicone resin, 10 to 20 parts by weight of an EVA polymer, 3 to 6 parts by weight of germanium, 1 to 3 parts by weight of biotite, 1 to 3 parts by weight of a whiteness wood powder, To 3 parts by weight, nano silver powder to 2 to 4 parts by weight, and gamma powder to 1 to 3 parts by weight.

The liquid silicone resin can be used by heating and liquefying a silicon crystal. However, the present invention is not limited to this, and known liquefied silicon which is liquefied can be used. The liquid silicone resin has a known structure, and a detailed description thereof will be omitted.

The EVA (Ehtylene Vinyl Acetate) polymer may be used to increase the adhesion with the primer layer 200 and to increase the strength of the coating layer 300.

In the present invention, the EVA polymer serves to increase the fluidity and improve the workability of the coating layer composition before curing. In the cured state, the EVA polymer increases surface adhesion, cohesive force, flexural strength, flexural strength and water resistance .

The germanium is a semi-metallic element with an off-white luster and a pharmacological effect of mystery. It is the closest element to earth and the element with high energy. It is a element of mystery. .

These germanium can be divided into organic germanium (Ge132) and inorganic germanium (Ge32). Only organic germanium can be used in the human body. Organic germanium is known to be ingested oxygen and hydrogen-rich oxygen.

In addition, germanium is capable of supplying ionized oxygen, which activates cells, promotes development, converts acidic water into beneficial alkaline water, and emits far infrared rays to enable physiological activity and metabolic enhancement.

The germanium is known to emit much far-infrared rays. The far-infrared rays penetrate deeply into the skin in a wavelength range of 4 to 1000 μm, and are converted into heat. These absorption functions are concentrated in the wavelength range of 5 to 30 μm. When the wavelength of the vibration is absorbed into the human body, atoms and molecules in the living body resonate and change into heat energy, and each cell can be activated and metabolism can be promoted.

In other words, Germanium (Ge) has excellent heat resistance, low thermal expansion property, and is known to emit far infrared rays higher than other oxides. Therefore, it has been used for many researches as a far-infrared radiation material. When germanium comes in contact with skin, It enters into the body and resonates and resonates. When ingested, it is discharged out of the body within 20 ~ 30 hours with various harmful substances. Therefore, there is no poisoning or side effects, and deodorization, anti-mold, dehumidification, air purification, can do.

The biotite powder may be selected from the group consisting of Fe, Mg, Zn, Mn, Cu, Mo, Se, Ge, Si, (V) and strontium (Sr), which can be sterilized by physiologically active substances used for decomposition of active oxygen having strong reducing power.

The soft wood powder is a softwood powder that emits a large amount of phytoncide and can be easily absorbed by the human body and selectively sterilize bacteria that are harmful to the human body. In addition, the phytoncide component contained in the artificial wood powder can perform a number of functions such as antimicrobial action, deodorizing action, sedative action, and stress algae action.

The pozzolan extract can be prepared by crushing the pozzolana formed in a mineral form and then processing the same. The pozzolana contains about 2.0 ppm of germanium and contains a large amount of far-infrared rays and anions. Typically, Clay, silicate and so on. That is, the pozzolan emits a far infrared ray corresponding to about 180 times of the loess, effectively removes the waste attached to the skin of the user, has a humidity control function, emits anion and human active energy, , Deodorization and sterilization effects and heavy metal neutralization effect.

In the present invention, the pozzolan extract may be contained in an amount of 1 to 3 parts by weight based on the whole composition. If the amount of the pozzolan extract is less than 1 part by weight, the effect of adding the pozzolan extract may not be sufficiently exhibited When it is contained in an amount exceeding 3 parts by weight, the production cost is increased and the content of other components is decreased, so that the physical properties may be deteriorated.

In the present invention, the extract of the pozzolan can be prepared by pulverizing the pozzolan in mineral form, followed by heat treatment and centrifugation.

That is, in the present invention, the pozzolan extract can be pulverized using a ball milling apparatus after preparing a mineral pozzolana, wherein the pozzolana has a particle size of 0.1 to 10 mu m and a particle size of 50 to 1500 m ² / g. ≪ / RTI >

The vessel is in this case that 0.1㎛ particle size or pulverized to less than a specific surface area of 50m ² / g, the grinding time of the delay may result in poor workability by dust or fine powder matter, the particle size or 10㎛ 1500m ² / g, the active ingredients contained in the pozzolana may not be easily extracted.

Next, the pulverized pozzolan can be heated and heat-treated.

In the heat treatment step, impurities and residual organics contained in the pulverized pomona may be removed by heating the pulverized pomona, wherein the heat treatment of the pomona is performed at a temperature of 1200 to 1300 DEG C for 30 to 80 minutes .

If the heat treatment of the pseudo-ozone is carried out at a temperature of less than 1200 ° C or less than 30 minutes, impurities or residual organic substances contained in the pseudo-ozone may not be removed sufficiently. If the temperature exceeds 1300 ° C or 80 minutes It is difficult to expect an increase in the further effect.

Next, the heat-treated pozzolana is washed to remove combustion residues attached to the surface of the pozzolan, and then the washed pozzolana is immersed in purified water to be aged.

In the above step, the surface of the pozzolan can be washed using distilled water or purified water. For example, the surface of the pozzolan is washed with purified water at 65 to 75 ° C. .

In addition, the aging of the pozzolana may be carried out by mixing 100 to 200 parts by weight of purified water at a temperature of 60 to 70 DEG C with respect to 100 parts by weight of the washed pozzolana, followed by sealing for 5 to 15 days.

In the present invention, as described above, the pozzolan is mixed with the purified water and then sealed and stored for a certain period of time, so that the active ingredients contained in the pozzolana can be easily leached into the purified water.

Then, after removing the pozzolana from the purified water, the purified water can be centrifuged.

In the present invention, the pozzolan is aged in purified water so that the effective components of the pozzolan are leached into the purified water. By centrifuging the purified water in which the effective components of the pozzolan have been leached, And the intermediate layer and the upper layer, which are located above the lower layer.

Next, after separating the intermediate layer and the supernatant of the centrifuged purified water, the supernatant and the supernatant may be heated to produce the pozzolan extract.

In the above step, the middle layer liquid and the supernatant of the centrifuged purified water are separated and heated at 110 to 120 ° C to remove moisture, thereby extracting the active ingredients of the pozzolan to produce a gel-form pozzolana extract .

The nano-silver powder functions as a photocatalyst. The photocatalyst (photocatalyst) refers to a substance that absorbs light and promotes a chemical reaction. The photocatalyst is mainly irradiated with light energy having a band gap energy or more Called " photooxidation " reaction, in which electrons and holes are generated and hydroxide radicals (-OH) are generated by the generated holes, and gaseous or liquid organic substances adsorbed on the surface thereof are strongly decomposed by the strong oxidizing power of the hydroxyl radicals, .

In the present invention, the photocatalyst exhibits catalytic activity by absorbing light energy. The strong oxidizing power generated at this time oxidizes and decomposes harmful substances discharged from sweat and waste materials of the human body. These photocatalysts are mainly used to purify organo-turbid water, which decomposes bacteria, microorganisms and organic substances by using their characteristics.

The nano silver (Ag) is added to improve the effect of the antibacterial photocatalyst. By adding the nano silver (Ag), the photooxidation reaction can be promoted, the mixing property and the coating property can be improved, and the antimicrobial property and antifungal property can be enhanced.

The jade powder enhances mutual resonance with the cells of the human body and strengthens the action of the blood vessels of the human body. It also helps to soften the five-ply meat and completely exhaust waste, and it is good for bronchial, asthma, fever, anemia and thirst. It helps the function of the lungs, the function of the vocal cords, the help of the throat, and the shine by affecting the hair. It also helps prevent neurological diseases such as stress and chronic diseases. Jade also helps in the circulatory and respiratory diseases, balances the viscosity of the blood and improves the blood to weak alkalinity.

The surface modification layer 400 is formed on the coating layer 300 and dried to be formed to improve the weatherability of the surface of the sofa 10 and is formed of a surface modification layer composition, Is prepared by mixing 50 to 100 parts by weight of a polyester resin, 10 to 20 parts by weight of 1,3,5-triglycidyl isocyanurate, 3 to 8 parts by weight of dodecanedioic acid, Wherein the additive is included in a weight ratio of 1 to 3 parts by weight of an antioxidant, 0.5 to 1.5 parts by weight of a light stabilizer, 0.1 to 1.0 parts by weight of a film former, and 1 to 3 parts by weight of a phosphorus monomer .

The polyester resin may be prepared by reacting with ethylene glycol, isophthalic acid and terephthalic acid.

That is, the polyester resin used in the present invention can be produced by the following production method.

First, 50 to 70 parts by weight of ethylene glycol, 30 to 40 parts by weight of isophthalic acid, 300 to 400 parts by weight of terephthalic acid and 1 to 5 parts by weight of tetrabutylammonium chloride as a catalyst are introduced into a column equipped with a nitrogen gas pipe and a cooling device, And a heater, and the temperature was gradually raised.

Next, when the temperature of 145 占 폚 to 155 占 폚 is reached, the condensed water is flowed out, and from that time, the temperature is raised to 250 占 폚 to 260 占 폚 while the glycol in the condensed water is controlled, and 1 to 3 parts by weight of tributylphosphite is added, A prepolymer having a hydroxy value of 30 to 32 mg KOH / g, an acid value of 6 to 7 mg KOH / g, a viscosity of 5,000 to 5,500 cPs (175 ° C, Brookfield viscosity) and a number average molecular weight of 2,500 to 3,000 was prepared.

Next, 1500 to 2000 parts by weight of the prepolymer, 100 to 200 parts by weight of trimellitic anhydride and 20 to 30 parts by weight of adipic acid were added to a flask containing a nitrogen gas pipe and a cooling device, a stirrer, a thermometer and a heater, After heating at < RTI ID = 0.0 > 245 C, < / RTI > the reaction temperature was maintained at 235 C to 245 C and reacted while removing condensed water. Finally, in order to increase the degree of polymerization of the resin, condensed water and unreacted materials, which have not been extracted in the polyester resin under a nitrogen atmosphere and a pressure of 50 to 200 mmHg, are removed and 4 to 7 parts by weight of ethyltriphenylphosphonium bromide are added thereto. Resin. The final polyester resin thus obtained exhibited an acid value of 50 to 55 mg KOH / g, a viscosity of 3,500 to 4,000 cPs (200 ° C, Brookfield viscosity), a glass transition temperature of 55 to 60 ° C and a number average molecular weight of 3,800 to 4,200.

The 1,3,5-triglycidyl isocyanurate and dodecanedioic acid are used as a curing agent, and the dodecanedioic acid has a molecular weight of 230 to 280 manufactured by using a crystalline C9 to C12 dicarboxylic acid having a purity of 99% or more By using dodecanedioic acid, physical properties such as adhesion, flexibility, chemical resistance and corrosion resistance can be secured through reaction with the polyester resin, and mechanical properties such as high hardness can be ensured.

Further, by using 1,3,5-triglycidylisocyanurate and dodecanedioic acid in combination, the curing reaction with the polyester resin is ensured to ensure mechanical and chemical properties, and glossiness of the coating film can be secured Do.

In the present invention, the 1,3,5-triglycidylisocyanurate preferably has a glass transition temperature (Tg) of -20 占 폚 or less and a number average molecular weight (Mn) of 1000 to 1300.

The antioxidant may be tetrakis [methylene-3- (dodecylthio) propionate] methane and the light stabilizer may be bis (1,2,2,6,6-pentamethyl-4-piperidinyl) -2-butyl-2- (4-hydroxy-3,5-di-tert-butylbenzyl) propanedioate.

In the present invention, the antioxidant and the light stabilizer are used in the surface modification layer composition to inhibit radical decomposition of the ultraviolet ray shielding and cured coating film, thereby preventing environmental corrosion of the coating film and defects occurring when the line is applied have.

The film former can be used for improving the storage stability of the surface modification layer composition and for improving the minimum temperature (MFFT) for obtaining a uniform film. For example, the film former may be 2,2, 2,2,4-Trimethyl-1,3-pentanediol monoisobutyrate may be used.

The phosphorus monomers may be mono alkyl phosphate or dialkyl phosphate. The phosphorus monomers may be mono alkyl phosphate or dialkyl phosphate, (Methacyloyloxy) ethyl phosphate (DMEP), 2- (methacryloyloxyethyl) phosphate, and the like can be used as the phosphorus monomers. Specific examples of the phosphorus monomers include bis [2- At least one selected from the group consisting of (methacryloyloxy) ethyl phosphate (MMEP) and tris (2-methacryloyloxy) ethyl phosphate (TMEP) May be included.

Hereinafter, embodiments of an environmentally-friendly sofa according to the present invention will be described in more detail with reference to the accompanying drawings.

<Examples>

A primer layer, a coating layer and a surface modifying layer were formed on the surface of the sofa.

The primer layer was prepared by blending 70 parts by weight of an acrylic monomer, 12 parts by weight of a reactive monomer, 2 parts by weight of a coupling agent, 0.7 parts by weight of a catalyst and 15 parts by weight of water. , 15 parts by weight of EVA polymer, 5 parts by weight of germanium, 2 parts by weight of biotite, 2 parts by weight of unbleached wood powder, 2 parts by weight of pozzolana extract, 3 parts by weight of nano silver powder and 2 parts by weight of jade powder, The modified layer contained 75 parts by weight of a polyester resin, 15 parts by weight of 1,3,5-triglycidyl isocyanurate, 5 parts by weight of dodecanedioic acid, and 10 parts by weight of additives , And the additive was prepared by blending 2 parts by weight of an antioxidant, 1 part by weight of a light stabilizer, 0.7 parts by weight of a film former, and 2 parts by weight of a phosphorus monomer.

As a comparative example, a sofa having no primer layer, a coating layer and a surface modification layer was prepared and used as a sofa according to a comparative example.

1. Deodorization test

Test Items Elapsed time (minutes) Comparative Example Concentration (ppm) Example Concentration (ppm) Deodorization test 30 465 195 90 440 170 150 435 135 300 425 110

Referring to Table 1, it can be seen that the deodorization test result obtained by measuring the gas concentration using the test gas of ammonia and the FTIR, and the deodorization rate of the environmentally friendly sofa produced according to the example, increases with time.

2. Antibacterial test

The antimicrobial test was carried out using the eco-friendly soap prepared according to the above example using Escherichia coil ATCC 25922 and Pseudomonas aeruginosa ATCC 15442, and the results are shown in the following Table 2. [

As a comparative example in the following [Table 2], a soap without a primer layer, a coating layer and a surface modification layer was prepared and an antibacterial test was performed using a sofa according to a comparative example.

Test Items Sample classification Initial concentration After 48 hours the concentration (CFU / 40p) Test with E. coli Comparative Example 540 960 Example 540 210 Examination by longevity Comparative Example 400 840 Example 400 195

Referring to Table 2, the number of bacteria increases with time in the sofa according to the comparative example, but since the number of bacteria decreases in the eco-friendly sofa according to the embodiment, the eco-friendly sofa according to the embodiment has an antibacterial effect .

Here, among the units of concentration, CFU means Colony Forming Unit and 40p means 0.04 mL.

3. Anion emission test

Sample item Anion (ION / cc) Eco-friendly sofa (embodiment) 620

[Table 3] shows the test method of KICM-FIR-1042 and the test equipment of the charge particle measuring device at the Far Infrared Application Evaluation Center of Korea Construction Materials Testing Institute and the test conditions of 24 ℃, 42% humidity and 52EA / cc And the eco-friendly sofa according to the example emits a large amount of natural anions.

4. Far Infrared radiation test

sample Emissivity (5 to 20 탆) Radiant energy (W / m ² ) Eco-friendly sofa (embodiment) 0.920 3.10 x 10 ²

[Table 4] was conducted at the Far Infrared Application Evaluation Center of the Korea Institute of Construction Materials, and the measurement results were compared with BLACK BODY using the FT-IR Spectrometer test equipment at a temperature of 40 ° C. The eco-friendly sofa according to the embodiment had a far- Able to know.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be possible. It is therefore to be understood that one embodiment described above is illustrative in all aspects and not restrictive.

10; Sofa
100; Sofa board
200; Primer layer
300; Coating layer
400; Surface modification layer

Claims (1)

A coating layer 300 formed on the primer layer 200 and a surface modification layer 400 formed on the coating layer 300. The primer layer 200 is formed on the base material 100, Respectively,
The primer layer 200 is formed of a primer layer composition, wherein the primer layer composition comprises 50 to 80 parts by weight of an acrylic monomer, 10 to 15 parts by weight of a reactive monomer, 1 to 3 parts by weight of a coupling agent, 0.1 to 1 part by weight of a catalyst, And water in a blending ratio of 10 to 20 parts by weight, and the acrylic monomer is at least one selected from the group consisting of butyl (meth) acryate, methyl (meth) acryate, acrylonitrile and acrylic acid methacrylic acid , The reactive monomer is at least one selected from aryl methacrylate or glycidyl methacrylate, and the coupling agent is selected from the group consisting of N- (2-aminoethyl) -3-aminopropyltrimethoxysilane (N- 2-aminoethyl) -3-aminopropyltrimethoxysilane, or 3-glycidoxypropyl trimethoxysilane. Wherein at least one selected from ammonium persulphate (APS) or benzoyl peroxide (BPO) is used as the catalyst,
The coating layer 300 is formed of a coating layer composition, which comprises 30 to 40 parts by weight of liquid silicone resin, 10 to 20 parts by weight of EVA polymer, 3 to 6 parts by weight of germanium, 1 to 3 parts by weight of biotite, 1 to 3 parts by weight of a powder, 1 to 3 parts by weight of a pozzolan extract, 2 to 4 parts by weight of a nano silver powder and 1 to 3 parts by weight of a jade powder,
Wherein the surface modification layer composition is formed of a surface modification layer composition, wherein the surface modification layer composition comprises 50 to 100 parts by weight of a polyester resin, 1,3,5-triglycidylisocyanurate (1,3,5 10 to 20 parts by weight of dodecanedioic acid, 3 to 8 parts by weight of dodecanedioic acid and 5 to 15 parts by weight of an additive, wherein the additive comprises 1 to 3 parts by weight of an antioxidant, 0.5 to 1.5 parts by weight of a light stabilizer 0.1 to 1.0 part by weight of a film former, and 1 to 3 parts by weight of a phosphorus monomer,
In the coating layer composition, the pozzolan extract is pulverized using a ball milling apparatus after preparing the pozzolana, wherein the pozzolana has a particle size of 0.1 to 10 mu m and has a specific surface area of 50 to 1500 m ² / g Wherein the heat treatment of the pseudo-ozone is performed at a temperature of 1200 to 1300 ° C for 30 to 80 minutes, the heat-treated pseudo-ozone is washed and attached to the surface of the pseudo ozone, And the washed pozzolan is immersed in purified water and aged. The washing of the pozzolana proceeds by washing the surface of the pozzolan with purified water at 65 to 75 DEG C, Is prepared by mixing 100 to 200 parts by weight of purified water at a temperature of 60 to 70 캜 with 100 parts by weight of the washed pozzolana and sealing and storing the mixture for 5 to 15 days, Separating and removing the pozzolan from the purified water, centrifuging the purified water, separating the lower layer liquid in which the fine particles of the pozzolan are located, and the middle layer liquid and the upper layer liquid located above the lower layer liquid, Separating the middle layer liquid and the supernatant of the centrifuged purified water and heating the middle layer liquid and the supernatant liquid to a temperature of 110 to 120 ° C to prepare a gel state,
The polyester resin in the surface modifying layer composition may be prepared by mixing 50 to 70 parts by weight of ethylene glycol, 30 to 40 parts by weight of isophthalic acid, 300 to 400 parts by weight of terephthalic acid and 1 to 5 parts by weight of tetrabutylammonium chloride as a catalyst, The temperature was raised to 145 DEG C to 155 DEG C, the condensed water was flowed out, and the temperature was raised to 250 DEG C to 260 DEG C. Then, tributylphosphite To prepare a prepolymer having a hydroxyl value of 30 to 32 mg KOH / g, an acid value of 6 to 7 mg KOH / g, a viscosity of 5,000 to 5,500 cPs and a number average molecular weight of 2,500 to 3,000, In a flask containing a column equipped with a cooling device, a stirrer, a thermometer and a heater, 1500 to 2000 parts by weight of the prepolymer, trimellitic anhydride 100 200 parts by weight of adipic acid and 20 to 30 parts by weight of adipic acid were charged and heated at 235 DEG C to 245 DEG C and then the reaction was carried out while maintaining the temperature at 235 DEG C to 245 DEG C and removing the condensed water and the reaction was carried out under a nitrogen atmosphere and a pressure of 50 to 200 mmHg The condensed water and the unreacted materials in the polyester resin were removed and 4 to 7 parts by weight of ethyltriphenylphosphonium bromide was added thereto to obtain an acid value of 50 to 55 mg KOH / g, a viscosity of 3,500 to 4,000 cPs, a glass transition temperature of 55 To 60 ° C and a number average molecular weight of 3,800 to 4,200, and the 1,3,5-triglycidyl isocyanurate has a glass transition temperature (Tg) of -20 占 폚 or less, number average molecular weight (Mn) in the range of 1000 to 1300,
Wherein the antioxidant in the additive of the surface modification layer composition is tetrakis [methylene-3- (dodecylthio) propionate] methane, and the light stabilizer is bis (1,2,2,6,6-pentamethyl -4-piperidinyl) -2-butyl-2- (4-hydroxy-3,5-di-tert-butylbenzyl) propanedioate is used, 2,2,4-Trimethyl-1,3-pentanediol monoisobutyrate is used as the phosphorus monomers and bis [2- (methacryloxy) ethyl] phosphate (Bis [ 2-methacryloyloxy ethyl phosphate (DMEP), 2- (methacryloyloxy) ethyl phosphate (MMEP), and tris 2- (methacryloyloxy) ethyl phosphate phosphate, TMEP) is used as the environment-friendly sofa.

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