KR100938595B1 - The composition for foaming wall paper prepared using polyvinylacetate resin wihtout harmful components - Google Patents

Abstract

PURPOSE: A foamed wallpaper composition is provided to block harmful materials radiated form wallpaper using a polyvinylacetate resin and to create more agreeable residential environment by discharging anions and phytoncide helpful for the human body. CONSTITUTION: An environment-friendly foamed wallpaper composition comprises a polyvinylacetate resin 50 parts by weight, acrylic acid binder 25 parts by weight, zeolite powder 5 parts by weight, sericite powder 5 parts by weight, pine extract 5 parts by weight, oxide ceramic magnetic nanopowder 5 parts by weight as a humidity-controllable antibacterial agent, flame retardant 3 parts by weight and foaming agent 2 parts by weight. The oxide ceramic magnetic nanopowder is selected from Sr-ferrite(Sr-Fe12O19), Ba-(Ba-Fe12O19), magnetite(Fe3O4), maghemite(γ-Fe2O3), nickel ferrite(Ni-Fe2O4) and cobalt ferrite(Co-Fe2O4).

Description

Foam wallpaper using eco-friendly polyvinylacetate resin {THE COMPOSITION FOR FOAMING WALL PAPER PREPARED USING POLYVINYLACETATE RESIN WIHTOUT HARMFUL COMPONENTS}

The present invention relates to a foamed wallpaper composition in which emissions of harmful substances produced using polyvinyl acetate resin are reduced.

In normal foamed wall paper manufacture, PVC-based synthetic resins are mainly used as base resins. However, when the PVC resin is used, an organic solvent harmful to the human body is used in the manufacturing process, and a plasticizer, a stabilizer, etc. are added, thereby causing an environmental inhibitory element such as harmful chemicals are emitted from the manufactured wallpaper. This problem is now known as sick house syndrome. In particular, wallpaper is essential for most buildings, residential or non-residential, and because it is used over almost the entire area of the building, its environmental risks are very large.

At present, as a part to block the harmfulness of the wallpaper, a synthetic leather wallpaper, such as replacing the PVC synthetic resin with PE or PP, etc. (Korean Patent Publication No. 10-0675833), or contains a natural composite mineral on the PVC wallpaper base There has been proposed a method of manufacturing an eco-friendly functional wallpaper top coating a liquid mixture using a filler and an eco-friendly binder (Korean Patent Publication No. 10-0633243).

In addition, Korean Patent Registration Publication No. 10-0633243 discloses a method for manufacturing an eco-friendly functional wallpaper for top coating printing a liquid mixture using a filler containing natural composite minerals and an eco-friendly binder on a PVC gelled wallpaper paper.

However, since PVC resin is also used in the manufacture of these synthetic resin wallpaper, it is not possible to exhibit the effect of blocking the harmful substances inherently, especially in the manufacture of foam wallpaper, PVC resin is still commonly used.

Therefore, the present invention is to develop a foam wallpaper composition that can replace the PVC resin, which is bound to use chemicals harmful to the human body in the manufacturing process with an environmentally friendly resin that does not require the use of organic solvents or other chemical additives.

The present invention is to provide a composition for foam wallpaper that suppressed the use of PVC resin by replacing the PVC resin commonly used in the manufacture of foam wallpaper with an environmentally friendly polyvinyl acetate resin.

In addition, the present invention is to provide a composition for foam wallpaper that can be used to block harmful substances in the harmful substances, while releasing harmful substances to the human body by using a harmful material adsorption material and environmentally friendly materials in the composition components.

In the present invention, because the PVC resin used in the manufacturing process is used for the chemicals harmful to human body is replaced with environmentally friendly polyvinylacetate resin, foam wallpaper manufactured using the composition of the present invention not only reduces the emission of harmful substances, but also pine Since eco-friendly materials such as extracts are included as raw materials, anion and phytoncide which release the body during the wallpaper construction are released, thereby creating a more comfortable environment.

In order to achieve the above object, the present invention is about 50 parts by weight of polyvinylacetate resin, about 25 parts by weight of acrylic acid binder, about 5 parts by weight of zeolite powder, about 5 parts by weight of mica powder, about 5 parts by weight of pine extract, humidity control antimicrobial agent An environmentally friendly polyvinylacetate resin foamed wallpaper composition comprising 5 parts by weight, about 3 parts by weight of flame retardant, and about 2 parts by weight of blowing agent is provided.

Eco-friendly polyvinylacetate resin foam wallpaper composition of the present invention

Mixing about 50 parts by weight of polyvinylacetate resin and about 25 parts by weight of an acrylic acid binder at a high temperature of 80 ° C.-85 ° C. for 1-2 hours to form a first mixture,

Impregnating the first mixture with about 5 parts by weight of zeolite powder and about 5 parts by weight of villus powder and stirring at room temperature at 400 rpm to form a second mixture,

Adding about 5 parts by weight of the pine extract to the second mixture and mixing at room temperature for 1-2 hours to form a third mixture,

Low temperature aging of the third mixture,

Adding about 3 parts by weight of a flame retardant to the third mixture and mixing at room temperature for 1-2 hours to form a fourth mixture,

Adding about 5 parts by weight of a humidifying antimicrobial agent and about 2 parts by weight of a blowing agent to the fourth mixture, and mixing at room temperature for 1-2 hours to form a final mixture, and

Low temperature aging of the final mixture

Is prepared by.

The foamed wallpaper composition thus prepared is coated on a white paper stock, then dried and heat-treated in a high-temperature chamber at 200-230 ° C. for 20-30 seconds to prepare a foamed wallpaper.

Eco-friendly polyvinylacetate resin foam wallpaper composition of the present invention is characterized by using a polyvinyl acetate resin prepared without using an organic solvent or a chemical additive in place of PVC resin. Polyvinylacetate resin is a PVC surrogate resin developed for the manufacture of wallpaper.

The polyvinylacetate resin used in the present invention is prepared by radical polymerization of the raw material vinylacetate using benzoyl peroxide as a radical initiator. Alcohols, such as methanol and ethanol, are used as a solvent of the said polymerization reaction. Therefore, the polyvinylacetate resin used in the present invention is an environmentally friendly resin to which no harmful chemicals are added in the manufacturing process. In addition, the polyvinylacetate resin prepared as described above is suitable for wallpaper because of its good shrinkage property and high strength, so that an excellent wallpaper of high quality can be produced.

The foamed wallpaper composition of the present invention is characterized by fundamentally blocking harmful substances that can be emitted from the wallpaper itself by using the eco-friendly polyvinylacetate resin described above instead of the PVC resin.

In addition, in the foamed wallpaper composition of the present invention, zeolite, mica and pine extract are used as materials beneficial to the human body. Zeolite absorbs and removes harmful substances that may be released by itself, and biotite and pine extract release negative ions to create a pleasant living environment.

In addition, the foamed wallpaper composition of the present invention includes an antibacterial agent and a flame retardant. Therefore, the foamed wallpaper produced using the foamed wallpaper composition of the present invention may exhibit antibacterial and flame retardant properties.

As such, when the foamed wallpaper composition of the present invention is used, not only the harmful substances emitted from the wallpaper itself are blocked, but also have anion release function and antibacterial function, thereby providing a comfortable living environment, and satisfying the firefighting standards. It is possible to produce a multifunctional foam wallpaper.

The eco-friendly polyvinyl acetate resin foamed wallpaper composition of the present invention can be processed into foamed wallpaper by coating or contacting with a variety of synthetic resin wallpaper, other leather wallpaper, or white paper stock, and heat treatment.

The eco-friendly polyvinyl acetate resin foamed wallpaper composition of the present invention uses polyvinylacetate resin developed for wallpaper manufacture instead of the PVC resin used in the manufacture of ordinary foamed wallpaper, thereby preventing the emission of harmful substances from the manufactured wallpaper. Is blocked.

In addition, the zeolite in the foamed wallpaper composition of the present invention can be removed by adsorbing harmful substances by itself, and the mica and pine extract release anions and phytoncide can create a comfortable living environment.

As such, when the foamed wallpaper composition of the present invention is used, not only the harmful substances emitted from the wallpaper itself are blocked, but also release anions and phytoncide beneficial to the human body, thereby providing a more comfortable living environment.

The foamed wallpaper composition of the present invention is an eco-friendly foamed wallpaper composition prepared by mixing a polyvinylacetate resin and a base resin of an acrylic acid binder with zeolite, mica, pine extract, humidity control antibacterial agent, flame retardant, and foaming agent.

In the present invention, polyvinylacetate resin is used instead of PVC resin as the base resin. The polyvinylacetate resin used in the present invention is an eco-friendly resin which is produced by radical polymerization of a raw vinylacetate monomer using benzoyl peroxide as a radical initiator and does not use harmful chemicals in the manufacturing process. The water-soluble polyvinylacetate resin thus prepared is suitable for wallpaper because of its good shrinkage property and high strength, and thus an excellent wallpaper of high quality can be produced.

In the present invention, the content of the polyvinylacetate resin in the composition is about 50 parts by weight. If the content is more than 50 parts by weight, the hardness is high, and it is difficult to form the wallpaper. If the content is less than 50 parts by weight, the strength is weak and the formation of the wallpaper is difficult.

In the present invention, an acrylic acid binder is used as the binder material of the foamed wallpaper composition. The acrylic acid binder improves the binding force of each component of the composition to make a uniform mixture and to improve the surface uniformity in forming into wallpaper.

In the present invention, the content of the acrylic acid binder in the composition is about 25 parts by weight. When content exceeds 25 weight part, a viscosity will become high and formation into a wallpaper will be difficult, and when content is less than 25 weight part, the function of a binder will not fully be exhibited.

In addition, zeolite powder and biotite powder are used as the environmentally friendly material in the foamed wallpaper composition of the present invention.

The zeolite powder used in the present invention functions to adsorb particulate matter. The content of zeolite powder in the composition is about 5 parts by weight. When content exceeds 5 weight part, since content of base resin falls, it is difficult to form as a wallpaper, and when content is less than 5 weight part, the function of a zeolite is not fully exhibited.

In the present invention, the zeolite is used to powder the active mordenite in which the sodium (Na) cation is substituted in the mordenite to 1000 mesh in the mesh size by the Tyler standard.

Zeolite is a porous crystal composed of silicon (Si) and aluminum (Al), and its structure is loose, and even though it releases moisture filled at a high temperature, its skeleton remains intact, so it can adsorb other particulate matter. . This property of zeolite can be used as an adsorbent to adsorb particulate materials of different sizes.

Thus, the composition of the present invention by containing the zeolite as a raw material, due to the adsorption properties of the zeolite, the harmful substances such as formaldehyde released from the wallpaper itself is adsorbed and decomposed, so that the emission of harmful substances is reduced, pleasant living environment Can be formulated.

In addition, sericite is a substance that emits 90% or more of far-infrared rays that promote blood circulation and activate cell activity of the human body, and emits strong anions, which is beneficial to the human body and helps to create a comfortable living environment.

In the present invention, the content of the mica powder in the composition is about 5 parts by weight. If the content exceeds 5 parts by weight, the content of the base resin is lowered, so it is difficult to form the wallpaper, and if the content is less than 5 parts by weight, the anion is not sufficiently released.

The average particle size of the mica may be 600 to 1000 mesh so that these minerals can be densely and evenly dispersed in the composition, but preferably about 1000 mesh.

The foamed wallpaper composition of the present invention uses pine extract as an environmentally friendly component that is particularly beneficial to the human body. Pine extract contains abundant phytoncide of terpene and releases negative ions by itself, and it is a material that contains a large amount of vitamins and minerals beneficial to human body.

In addition, phytoncide rich in pine helps to relieve stress and clear the mind, to cleanse indoor air, to relieve insomnia, to stabilize autonomic nerves, to promote blood circulation and metabolism, to remove odors and deodorizes, and to protect forests. Refreshing effect, antibacterial and insect repellent effect, promoting hormone secretion and restoring body rhythm, stabilizing exercise nerve and sensory function, supplying oxygen smoothly, good for skin beauty and brain health, moisture control effect Etc.

In addition, pine extract provides a scent of the final product to enhance the user's satisfaction.

In the present invention, the content of pine extract in the composition is about 5 parts by weight. If the content exceeds 5 parts by weight, the content of the base resin is lowered, so that it is difficult to form a wallpaper. If the content is less than 5 parts by weight, the function of the pine extract is not sufficiently exhibited.

In the present invention, a humidified antimicrobial magnetic nanopowder is used as a component having an antimicrobial effect. The content of the humidified antimicrobial magnetic nanopowder in the composition is about 5 parts by weight. If the content exceeds 5 parts by weight, it is difficult to form the wallpaper because the content of the base resin is lowered. If the content is less than 5 parts by weight, the antihumidifying antibacterial function is not sufficiently exhibited.

Humidified antibacterial magnetic nanopowder refers to magnetic nanopowder having humidity control and antibacterial function. Magnetic nanopowder is a non-irritating powder in the terminal sphere state of particle size of 30nm-100nm, soluble in water, exhibits aggregation phenomenon. In order to reduce the aggregation phenomenon, a surfactant is used, and for example, oleic soda, dodecylbenzenesulfonic acid soda, dodecylamine, capric acid, lauric acid, myristic acid and the like can be used.

In particular, the magnetic nanopowder emits sperm energy, which is antibacterial and sterile. In addition, sperm energy is known to be beneficial to life. Accordingly, magnetic nanopowder that emits static magnetic energy has been used in various technical fields such as soft and hard pvc plastic moldings, and household goods, construction materials, wallpaper paints, tile floor adhesives, and the like.

Specifically, the magnetic nanopowder that emits static magnetic energy may be divided into a ceramic magnetic material and a rare earth metal magnetic material. In the present invention, it is preferable to use an oxide ceramic magnetic nanopowder which is cheaper and has excellent oxidation resistance. For example, Sr-ferrite (Sr-Fe12O19), Ba-ferrite (Ba-Fe12O19), magnetite (Fe3O4), mag Hematite (γ-Fe2O3), nickel ferrite (Ni-Fe2O4), cobalt ferrite (Co-Fe2O4) and the like can be used.

As described above, the foamed wallpaper composition of the present invention contains the hygroscopic antimicrobial magnetic nanopowder as a raw material, and the magnetic nanopowder can expect humidity control and antibacterial function from the constructed wallpaper due to humidity control and antibacterial properties, and also to the human body. The release of sperm energy, which is known to be beneficial, is expected, thus creating a comfortable living environment.

In addition, in the present invention, a flame retardant is used as one of the wallpaper materials in order to impart flame retardancy to the wallpaper. The content of the flame retardant in the composition is about 3 parts by weight. When content exceeds 3 weight part, since content of base resin falls, it is difficult to form as a wallpaper, and when content is less than 3 weight part, a flameproof function is not fully exhibited.

A flame retardant can use a flame retardant, such as antimony trioxide commercially available on the market. Thus, by using a flame retardant as a wallpaper raw material, the wallpaper of the present invention has a flame retardant function.

In addition, a foaming agent is used for the foamed wallpaper composition of the present invention. As the blowing agent, a blowing agent of isobutane, isopentane or normalpentane is used. The content of the blowing agent in the composition is about 2 parts by weight. If the content exceeds 2 parts by weight, the function of the blowing agent does not increase compared to the added weight, so it is uneconomical. If the content is less than 2 parts by weight, the function of the blowing agent is not sufficiently exhibited.

In order to manufacture the eco-friendly polyvinylacetate resin foamed wallpaper composition of the present invention, first, a polyvinylacetate resin and an acrylic acid binder are mixed. The polyvinylacetate resin used in the present invention is produced by radical polymerization of a raw material vinylacetate monomer using an alcohol solvent and using benzoyl peroxide as a radical initiator. About 50% by weight of the polyvinylacetate resin and about 25% by weight of the acrylic acid binder are mixed to form the base resin based on the total composition. A ratio of 2: 1 of polyvinylacetate resin and acrylic acid binder is suitable for imparting bonding strength and adhesion to the composition of the present invention. If the ratio of the binder to the polyvinyl acetate resin is smaller than this, the adhesiveness of the composition is insufficient, and the excess adhesive resin deteriorates the moldability of the composition.

The polyvinylacetate resin works at a high temperature of at least 60-65 ° C. or higher to improve binding and flexibility of the composition and is well mixed.

The base resin prepared above was mixed at a temperature of 60 ° C.-95 ° C., preferably 80 ° C.-85 ° C. for 1 to 2 hours, and then the zeolite powder and the mica powder, which were ground to about 1000 mesh particles, were made based on the total composition. Add 5% by weight. The mixture is stirred well at room temperature at 400 rpm and mixed well.

Next, about 5% by weight of pine extract is added to the mixture, based on the total composition, and mixed at room temperature for 1-2 hours. Pine extract is used after milling pine needles, aged for 10 to 24 hours at 25 ℃ -27 ℃.

Next, a mixture comprising polyvinylacetate resin, acrylic acid binder, zeolite, mica and pine extract is aged at low temperature for 25 minutes at 27 ° C-27 ° C for 3-4 hours.

Next, about 3% by weight of the flame retardant was added to the aged mixture, mixed well at room temperature for 1-2 hours, and finally, about 5% by weight of the humidifying antimicrobial agent and the foaming agent were added, respectively. Mix well for 1-2 hours at room temperature.

The final mixture thus formed is low temperature aged once again at 25 ° C.-27 ° C. for 3-4 hours.

The composition thus prepared is coated on a white paper stock, then dried and heat-treated in a high-temperature chamber at 200-230 ° C. for 20-30 seconds to process the foamed wallpaper.

As described above, since the foamed wallpaper composition of the present invention uses eco-friendly polyvinylacetate resin as a base resin instead of PVC resin in which hazardous chemicals are used in the manufacturing process, and uses various eco-friendly materials, Emission of harmful substances due to chemical additives is reduced, and rather beneficial substances such as anions and phytoncide are released.

Eco-friendly polyvinylacetate resin foam wallpaper composition of the present invention can be processed into foam wallpaper by coating on white paper.

The eco-friendly polyvinyl acetate resin foamed wallpaper composition of the present invention is prepared using zeolite, anion generating mica, pine extract, humidity control antimicrobial agent, and flame retardant, so when used as a building interior material, etc., it can exhibit adsorption of harmful substances, antibacterial and flame retardant properties. In addition, by releasing anions and phytoncide can create a pleasant living environment beneficial to the human body.

In addition, the eco-friendly polyvinylacetate resin foamed wallpaper composition of the present invention does not use harmful chemicals in the manufacturing process, and is subjected to stirring, mixing and low temperature aging, so that even a small amount of harmful substances are decomposed and removed, and thus the organic compound ( TVOC), no harmful chemicals contained in conventional paints, resins, such as formaldehyde, toluene, xylene, styrene, isobutylbenzene, ethylbenzene, etc. are not emitted.

Therefore, using the eco-friendly polyvinyl acetate resin foam wallpaper composition of the present invention, it is possible to produce a multifunctional foam wallpaper having a variety of functions.

Example

In the following examples all percentages refer to weight percent.

Raw materials and additives

Based on 100% of the total composition,

Raw material 1-1> 50% of polyvinylacetate resin prepared by radical polymerization of raw material vinyl acetate using benzoyl peroxide as a radical initiator

Raw material 1-2> acrylic binder 25%

Additive 1> 5% each of zeolite and chorion ground to 1000 mesh

Additive 2> Pine extract 5% prepared by aging pine needle powder at 25 ° C-27 ° C for 10 to 24 hours

Excipient 3> Humidity Magnetic Nanopowder Antibacterial 5%

Additive 4> Flame Retardant 3%

Additive 5> 2% isobutane blowing agent

Preparation of foam wallpaper composition

50% of polyvinylacetate resin and 25% of acrylic acid binder are mixed at 80-85 ° C for 2 hours. Zeolite and sorghum are each ground to a particle size of 1000 mesh, then 5% each to the mixture and mixed well at 400 rpm. 5% pine extract is added to the mixture and mixed well at room temperature for 2 hours. The mixture is aged at 25 ° C. for 3 hours. 3% of the flame retardant was added to the aged mixture and mixed well at room temperature. Finally, 5% of the humidifying antimicrobial agent and 2% of isobutane-based blowing agent were added and mixed at room temperature for 2 hours. The final mixture is aged at low temperature for 2 hours at 25 ° C. to complete the eco-friendly foam wallpaper composition.

Foam wallpaper

The foamed wallpaper composition thus prepared was coated on a white paper stock, and heat-treated for 30 seconds in a high-temperature chamber at 200-230 ° C. to produce an environmentally friendly polyvinyl acetate resin foamed wallpaper.

Experimental Example  One

In order to investigate the deodorizing performance of the foamed wallpaper composition prepared above, HCHO deodorization test was carried out based on KICM-FIR-1085 which is a deodorizing test method, and the results are shown in Table 1.

Deodorization test results of the foamed wallpaper composition prepared according to the present invention Test Items Deodorization Test (HCHO) Elapsed time (minutes) Blank Concentration (ppm) Sample concentration (ppm) Deodorization rate (%) Test result 0 82 82 - 30 79 12 84.8 60 77 8 89.6 90 75 5 93.3 120 73 3 97.9 Test Methods KICM-FIR-1085: 2006

Table 1 shows that the foamed wallpaper composition of the present invention is excellent in deodorizing function.

Experimental Example  2

As a result of the antimicrobial test (KICM-FIR-1002 test method) over time of the prepared foam wallpaper composition, it was confirmed that the foam wallpaper composition of the present invention shows an antimicrobial activity of 96.8%.

Test Items Test result Test Methods Initial concentration (CFU / 40p) Concentration after 24h (CFU / 40p) Bacterial reduction rate Test by E. coli Blank 424 2888 - KICM-FIR-1002 Foamed wallpaper composition of the present invention 424 4 96.8 * Strains used: Escherichia coli ATCC 25922

Experimental Example  3 (anion release)

Experimental results of the anion release of the prepared foam wallpaper composition was as follows.

Test Items Test result Test Methods Anion (ION / cc) Blank 75 KICM-FIR-1042 Sample 1008

<Test Example 4>

Hazardous Substance Release Test

The results of testing the amount of harmful substances released in the foamed wallpaper composition prepared as follows. From Table 4 it can be seen that the amount of harmful substances released is significantly less.

Test Items result Test Methods Total Volatile Organic Compounds (TVOC, mg / m2h) 0.006 Indoor Air Quality Process Test Criteria (Ministry of Environment Notice No. 2008-73) Toluene (mg / m2h) Tr Formaldehyde (mg / m2h) 0.003

From the test results, it was confirmed that the foam wallpaper composition of the present invention is excellent in reducing harmful substances, deodorizing, antibacterial and anion release performance.

Claims (7)

50 parts by weight of polyvinylacetate resin, 25 parts by weight of acrylic acid binder, 5 parts by weight of zeolite powder, 5 parts by weight of mica powder, 5 parts by weight of pine extract, Sr-ferrite (Sr-Fe12O19), Ba-ferrite (Ba- 5 parts by weight of an oxide ceramic magnetic nanopowder selected from Fe12O19), magnetite (Fe3O4), maghemite (γ-Fe2O3), nickel ferrite (Ni-Fe2O4) and cobalt ferrite (Co-Fe2O4), 3 parts by weight of a flame retardant, and Eco-friendly polyvinyl acetate resin foam wallpaper composition comprising 2 parts by weight of blowing agent. The foam wallpaper composition according to claim 1, wherein the polyvinyl acetate resin is produced by radical polymerization of a raw vinyl acetate monomer (VAM) using benzoyl peroxide as a radical initiator. The foam wallpaper composition according to claim 1, wherein the zeolite powder and the biotite powder each have a particle size of 1000 mesh. The foamed wallpaper composition according to claim 1, wherein the pine extract is aged for 10 to 24 hours at 25 ° C-27 ° C after grinding pine needles. delete The foam wallpaper composition of claim 1, wherein the blowing agent is an isobutane, isopentane, or normal pentane blowing agent. Eco-friendly foam wallpaper formed by coating the foam wallpaper composition of claim 1 on a white paper.