KR102421063B1 - Method for preparing architecture interior material using sea shell and architecture interior material prepared by the same - Google Patents

Abstract

The present invention relates to a method for manufacturing a building interior material using a shell and to a building interior material manufactured by the method. According to an embodiment of the present invention, a method for manufacturing a building interior material using a shell includes the steps of: preparing a shell; washing and drying the shell; pulverizing the washed and dried shells to prepare shell powder; mixing the shell powder, minerals and solvent to form a mixture; forming a molded article by compression molding the mixture; drying the molding; and post-processing the dried molding.

Description

Method for manufacturing a building interior material using a shell and a building interior material manufactured thereby

The present invention relates to a method for manufacturing a building interior material using a shell and to a building interior material manufactured by the method.

Tiles, which are commonly used as interior materials for construction, are mixed with raw materials such as feldspar, limestone, kaolin, zircon, and zinc oxide, dry and wet crushed, applied to the surface of the unfired tile substrate, dried, and then dried at about 1,000 ℃ to 1,200 ℃ It is produced by firing in a low-heat kiln with a moderate temperature.

As described above, the tile according to the prior art has problems in that the work process is complicated by plastic processing at a high temperature, and secondary environmental pollution and cost increase due to the high heat treatment process during the manufacturing process.

On the other hand, the currently generated shells, which are industrial wastes, are shells of shellfish, and the shells currently generated in Korea are powdered aloe or antacid, and burned shellfish as paints, mordants, fertilizers, etc. It is used in real life for use as primary processing products such as fertilizers and construction materials, and for use as food or medicines by extracting calcium components.

However, despite such consumption, more than 300,000 tons of shells are treated as waste annually, which incurs a lot of maintenance costs for landfilling or stockpiling. Not only does it generate a decomposing odor due to being left alone in the sea, but in particular, the proportion of shells as a major source of pollution in marine wastes reaches about 70%, causing serious environmental problems.

Therefore, the recycling of shells so that they can be used for construction or industry is required as a solution to these problems.

The present invention is to solve the above problems, and an object of the present invention is to recycle discarded shells and use eco-friendly materials, so that high heat treatment process, expensive chemical treatment process and expensive materials are unnecessary, and strength similar to cement To provide a method for manufacturing a building interior material using a shell having a light weight and harmless to the human body and a building interior material manufactured thereby.

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

According to an embodiment of the present invention, a method for manufacturing a building interior material using a shell includes the steps of preparing a shell; washing and drying the shell; pulverizing the washed and dried shells to prepare shell powder; mixing the shell powder, minerals and solvent to form a mixture; forming a molded article by compression molding the mixture; drying the molding; and post-processing the dried molding.

In one embodiment, the shell includes at least one selected from the group consisting of a clam shell, an abalone shell, a conch shell, a sea urchin shell, an oyster shell, and a closed coral, and the shellfish shell is a scallop shell, To include at least one selected from the group consisting of clams, cockle shells, cockle shells, clams shells, cockle shells, clams shells, pearl shells, elephant shells, oyster shells, mussel shells and clams shells can

In one embodiment, the step of washing and drying the shell comprises: an acid washing step; and cleaning the surface residues.

In one embodiment, the acid washing comprises glacial acetic acid (CH ₃ COOH), nitric acid (HNO ₃ ), sulfuric acid (H ₂ SO ₄ ), chromic anhydride (CrO ₇ ) and hydrofluoric acid (HF). It is to be immersed in at least one acidic solution selected from the group for 12 hours to 96 hours, and a mixing ratio of water: acidic solution per 10 kg of the shell may be 5:1 to 20:1.

In one embodiment, the cleaning of the surface residue may be washing the acid-washed shell with water using a brush.

In one embodiment, in the step of washing and drying the shell, the drying may be natural drying or oven drying at a temperature of 180° C. to 200° C. for 20 minutes to 30 minutes.

In one embodiment, in the step of preparing shell powder by pulverizing the washed and dried shells, the shell powder contains 0.01 mm to 1 mm of low particles, 1 mm to 5 mm of heavy particles, and 5 mm to 15 mm of It may be pulverized to include high particles.

In one embodiment, the step of mixing the shell powder, the mineral and the solvent to form a mixture comprises: a solid mixture comprising the shell powder, silicate mineral, and a complex polysaccharide adhesive; and a solvent; a first mixture comprising; or a solid mixture comprising the shell powder, silicate mineral, clay mineral, sulfate mineral or both, and a complex polysaccharide adhesive; and a solvent; may be to form a second mixture comprising a.

In one embodiment, the solid mixture of the first mixture comprises 55% to 65% by weight of shell powder, 15% to 30% by weight of silicate mineral, and 2% to 5% by weight of complex polysaccharide adhesive, Based on 100 parts by weight of the solid mixture, 40 parts by weight to 60 parts by weight of water and 0.3 parts by weight to 0.5 parts by weight of glycerin may be included.

In one embodiment, the solid mixture in the second mixture is 30% to 50% by weight of shell powder, 8% to 12% by weight of silicate mineral, 30% to 40% by weight of clay mineral, sulfate mineral, or both % and 2 wt% to 5 wt% of the complex polysaccharide adhesive, and may include 40 parts by weight to 60 parts by weight of water and 0.3 parts by weight to 0.5 parts by weight of glycerin based on 100 parts by weight of the solid mixture.

In one embodiment, the step of mixing the shell powder, the mineral, and the solvent to form a mixture may further include a color tint powder, a colorant, or both of the mixture in 1% to 5% by weight of the mixture. can

In one embodiment, the step of compression-molding the mixture to form a molded product may include compression molding at a pressure of 10 kg to 5000 kg after the mixture is placed in a mold and loaded into a press device.

In one embodiment, in the step of drying the molding, the compression-molded molding is placed at room temperature for 30 minutes to 1 hour, then naturally dried at room temperature of 20° C. or higher for 3 to 5 days, or 50° C. to 70° C. It may be dried for 24 hours to 30 hours in a dryer at °C.

In one embodiment, in the post-treatment of the dried molding, after sanding the molding with sandpaper to evenly treat the surface, decoration varnish, acrylic varnish, spa varnish, polyvinyl alcohol, shellac, drying oil, alkyd, It may be finished by applying at least one eco-friendly water-soluble interior finishing material selected from the group consisting of violin and rosin to surface treatment.

A building interior material according to another embodiment of the present invention is manufactured by the method for manufacturing a building interior material using a shell according to an embodiment of the present invention.

The method of manufacturing a building interior material using a shell according to an embodiment of the present invention is a value-upward waste utilization technology that regenerates discarded resources into more valuable uses, conventional high heat treatment of heating to 1000 ° C or more and treating with slaked lime No process, expensive chemical treatment and expensive materials are required. Also, unlike other upcycling companies' methods, it can be used 100% regardless of the quality of the waste. With the addition of design, it is possible to expect triple effects such as creation of high added value with artistry, aesthetics, and functionality of new uses, as well as turning waste into resources, reducing waste treatment costs, and preventing marine pollution.

The building interior material according to an embodiment of the present invention enables efficient recycling of shells, which are thrown away every year in Korea by 300,000 tons. The shell powder particles are naturally scattered and the aesthetic effect of the terrazzo type can be maximized, and the shells classified as garbage can be artistically commercialized. In addition, it is possible to manufacture not only building interior materials and interior decoration tiles, but also emotionally designed interior accessories such as vases, picture frames, decorative trays, lights, and pendants. In addition, since it is compressed using natural ingredients, it is 50% lighter in weight compared to conventional tiles, but similar in strength and harmless to the human body.

1 is a flowchart illustrating a manufacturing process of a building interior material using a shell according to an embodiment of the present invention.
2 to 4 are actual photos of tiles manufactured according to Example 1 of the present invention.
5 is an actual photograph of a tile manufactured according to Example 1 (left) and Example 2 (right) of the present invention.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes may be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all modifications, equivalents and substitutes for the embodiments are included in the scope of the rights.

Terms used in the examples are used for the purpose of description only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, 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 the embodiment belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are assigned the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In the description of the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms.

Components included in one embodiment and components having a common function will be described using the same names in other embodiments. Unless otherwise stated, descriptions described in one embodiment may be applied to other embodiments as well, and detailed descriptions within the overlapping range will be omitted.

Hereinafter, the manufacturing method of the building interior material using the shell of the present invention and the building interior material manufactured by the method will be described in detail with reference to Examples and drawings. However, the present invention is not limited to these examples and drawings.

According to an embodiment of the present invention, a method for manufacturing a building interior material using a shell includes the steps of preparing a shell; washing and drying the shell; pulverizing the washed and dried shells to prepare shell powder; mixing the shell powder, minerals and solvent to form a mixture; forming a molded article by compression molding the mixture; drying the molding; and post-processing the dried molding.

1 is a flowchart illustrating a manufacturing process of a building interior material using a shell according to an embodiment of the present invention.

Referring to FIG. 1 , the method for manufacturing a building interior material using a shell according to an embodiment of the present invention includes a shell preparation step 110 , a washing and drying step 120 , a shell powder production step 130 , and a mixture forming step (140), forming a molding step (150); and a molding drying step 160 and a molding post-treatment step 170 .

In one embodiment, the shell preparation step 110 is a step of collecting shells.

For example, it may be collecting shells left over from eating at farms, parksinjang and restaurants in the coastal region of Gyeongnam. When the shell is pulverized depending on the type of shell, the texture and color appear very beautiful and diverse, and it has considerable insulation performance due to the porous calcium component that is biochemically composed. It is a hygienic and eco-friendly material that has the ability to adsorb contaminants.

In one embodiment, the shell includes at least one selected from the group consisting of a clam shell, an abalone shell, a conch shell, a sea urchin shell, an oyster shell, and a closed coral, and the shellfish shell is a scallop shell, To include at least one selected from the group consisting of clams, cockle shells, cockle shells, clams shells, cockle shells, clams shells, pearl shells, elephant shells, oyster shells, mussel shells and clams shells can Preferably, the shells may be oyster shells, mussel shells and abalone shells.

In one embodiment, the washing and drying step 120 is a step of washing and drying the shell.

In one embodiment, the step of washing and drying the shell comprises: an acid washing step; and cleaning the surface residues.

In one embodiment, the acid washing comprises glacial acetic acid (CH ₃ COOH), nitric acid (HNO ₃ ), sulfuric acid (H ₂ SO ₄ ), chromic anhydride (CrO ₇ ) and hydrofluoric acid (HF). It may be immersed in at least one acidic solution selected from the group for 12 hours to 96 hours. Preferably, using glacial acetic acid as an acidic solution, it may be immersed for 24 hours to 72 hours. At this time, it may be immersed until the surface is white so that all food residues, other seaweeds, salts and foreign substances generated in the aquaculture process are removed.

In one embodiment, a mixing ratio of water:acid solution per 10 kg of the shell may be 5:1 to 20:1. Preferably, it may be 10:1.

In one embodiment, the cleaning of the surface residue may be washing the acid-washed shell with water using a brush. After the acid washing, the residue on the surface of the shell may be removed using a brush and washing with water to remove the remaining foreign matter.

In one embodiment, in the step of washing and drying the shell, the drying may be natural drying or oven drying at a temperature of 180°C to 200°C for 20 minutes to 30 minutes. Preferably, it may be to increase the overall disinfection effect on the inside and outside of the shell, sterilize microorganisms, and oven drying for easy pulverization of the washed shell.

The conventional method of recycling shells is to heat-treat the shells by high-temperature calcination of 1000 ℃ or more, and mix them with cement mortar and use them as building materials. However, in the method of manufacturing a building interior material using a shell according to an embodiment of the present invention, high heat is not used to remove impurities and smoke from the shell. Because it does not use the method of applying a coating and firing at a high temperature, the manufacturing process is eco-friendly (reduced carbon dioxide emission, reduced use of electric resources), there is no damage from secondary environmental pollution, and there are advantages of cost reduction.

In one embodiment, the shell powder manufacturing step 130 is a step of preparing shell powder by pulverizing the washed and dried shells.

In one embodiment, in the step of preparing shell powder by pulverizing the washed and dried shells, the shell powder contains 0.01 mm to 1 mm of low particles, 1 mm to 5 mm of heavy particles, and 5 mm to 15 mm of It may be pulverized to include high particles. According to the particle of the shell, a terrazzo-shaped surface appears during the molding process, so the aesthetic effect can be maximized.

For example, oysters, mussels and abalone may be pulverized into low particles of 0.01 mm to 1 mm, medium particles of 1 mm to 5 mm, and high particles of 5 mm to 15 mm, respectively, and oyster shells have low particles, The mussel shells may be separated by crushing them into heavy particles and abalone shells into high particles. Oyster shells and mussel shells are discarded in large quantities in Korea, so they are easy to obtain, and the high calcium carbonate ratio increases strength in molding. Various aesthetic effects can be maximized.

In one embodiment, the step of forming the mixture 140 is a step of forming a mixture by mixing the shell powder, the mineral, and the solvent.

In one embodiment, the mixing is done by hand or using a mixer, and the mixture after mixing becomes a clay-like form.

In one embodiment, the step of mixing the shell powder, the mineral and the solvent to form a mixture comprises: a solid mixture comprising the shell powder, silicate mineral, and a complex polysaccharide adhesive; and a solvent; a first mixture comprising; or a solid mixture comprising the shell powder, silicate mineral, clay mineral, sulfate mineral or both, and a complex polysaccharide adhesive; and a solvent; may be to form a second mixture comprising a.

In one embodiment, the first mixture is made of a component that is inexpensive and does not harm nature because there are few materials contained therein. The first mixture is basically suitable for development as an interior accessory.

In one embodiment, the solid mixture in the first mixture comprises 55 wt% to 65 wt% of shell powder, 15 wt% to 30 wt% of silicate mineral, and 2 wt% to 5 wt% of complex polysaccharide adhesive can

In one embodiment, when out of the range of the mixing weight ratio, the molding of the building interior material is not properly formed, and even if formed, cracks may occur during the drying process.

In one embodiment, when the shell powder is less than 55% by weight of the solid mixture of the first mixture, the setting time is delayed, and when it is more than 65% by weight, the solidification rate is fast and uniform mixing cannot be achieved .

In one embodiment, the silicate mineral is not particularly limited as long as it is used in the technical field, but a silica powder containing a silicate-based mineral such as sericite may be preferable. In the present invention, the silicate mineral serving as silica (SiO ₂ ) serves to improve the durability by enhancing the molding strength.

In one embodiment, when the silicate mineral is less than 15% by weight of the solid mixture, it does not contribute to improving the forming strength, and when used in an amount of more than 30% by weight, there is a problem in the formability of the filler particles.

In one embodiment, the silicate mineral may have a particle size of 0.1 mm to 0.5 mm. If the size of the particles is less than the above range, accurate metering operation is difficult due to the influence of dust during operation. Preferably, a particle size of 0.1 mm to 0.3 mm is suitable.

In one embodiment, the composite polysaccharide adhesive is an eco-friendly polysaccharide used as a binder to thicken a mixture of calcium carbonate (CaO) and silica (SiO 2 ) and to increase adhesion. Conventional products are not biodegradable when discarded due to the use of chemical resin binders. However, the building interior materials using the shells of the present invention are all made of natural materials, so if a finishing material is not applied, they are biodegradable when discarded.

In one embodiment, the complex polysaccharide adhesive may be at least one selected from the group consisting of pectin, alginic acid, agar, cellulose, seaweed grass, guar gum, gum arabic, carrageenan and polydextrose.

In one embodiment, based on 100 parts by weight of the solid mixture of the second mixture, 40 parts by weight to 60 parts by weight of water and 0.3 parts by weight to 0.5 parts by weight of glycerin may be included.

In one embodiment, when out of the range of the mixing weight ratio, the molding of the building interior material is not properly formed, and even if formed, cracks may occur during the drying process.

In one embodiment, the second mixture is suitable for industrialization enabling production as interior decoration tiles.

In one embodiment, the solid mixture in the second mixture is 30% to 50% by weight of shell powder, 8% to 12% by weight of silicate mineral, 30% to 40% by weight of clay mineral, sulfate mineral, or both % and 2 wt% to 5 wt% of the complex polysaccharide adhesive.

In one embodiment, when the shell powder is less than 30% by weight of the solid mixture of the second mixture, the setting time is delayed, and when it is more than 50% by weight, the solidification rate is fast and uniform mixing cannot be achieved .

In one embodiment, the sulfate mineral may be to control self-shrinkage and drying shrinkage.

In one embodiment, the sulfate mineral may include gypsum.

In one embodiment, clay minerals and/or sulfate minerals may be added to enhance the industrial properties of the product.

In one embodiment, the clay mineral may include at least one selected from the group consisting of clay, kaolin, bentonite, and illite. When the clay mineral is added, the material has a stable hardness, dries quickly, and the absorption rate is lowered, so it is more suitable for industrialized products that require mass production, such as interior tiles.

In one embodiment, when the amount of the clay mineral and/or sulfate mineral in the solid mixture is less than 30% by weight, it does not contribute to improving the forming strength, and when it is used in an amount of more than 40% by weight, there is a problem in formability.

In one embodiment, the complex polysaccharide adhesive may be at least one selected from the group consisting of pectin, alginic acid, agar, cellulose, seaweed grass, guar gum, gum arabic, carrageenan and polydextrose.

In one embodiment, based on 100 parts by weight of the solid mixture, 40 parts by weight to 60 parts by weight of water and 0.3 parts by weight to 0.5 parts by weight of glycerin may be included.

In one embodiment, when out of the range of the mixing weight ratio, the molding of the building interior material is not properly formed, and even if formed, cracks may occur during the drying process.

In one embodiment, the step of mixing the shell powder, the mineral, and the solvent to form a mixture may further include a color tint powder, a colorant, or both of the mixture in 1% to 5% by weight of the mixture. can Preferably, the color tint powder, colorant, or both may be included within 3% by weight of the total mixture, and the aesthetic effect of building interior materials may be exhibited.

In one embodiment, the colorant may use a natural dye. Natural dyes that can be used in the present invention include red dyes (safflower, safflower, safflower, safflower, etc.), yellow dyes (yellow white, gardenia, turmeric, yellow lily, gooseberry, ginseng vine, marigold, freesia, dandelion, etc.), blue dye (indigo dye, gardenia blue dye, etc.), purple dyes (self-flowering herbs, loquats, etc.), brown dyes (persimmon, chestnut peel, etc.), green dyes (raw indigo plant, amber, mugunghwa pachira, arrowroot, motherwort, mugwort, etc.) can be given as an example.

In one embodiment, the molding forming step 150 is a step of compression molding the mixture to form a molding.

In one embodiment, the step of compression-molding the mixture to form a molded article may include compression molding at a pressure of 10 kg to 5000 kg (5 ton) after loading the mixture into a mold and loading it into a press device.

For example, a clay-like mixture is put into at least one mold selected from the group consisting of rubber, urethane, silicone, aluminum and iron, and the medium and/or high particles of the shell powder are dispersed as intended to give an effect on the surface. After giving, it may be compressed and molded in a press machine. Compressive strength varies depending on the product, but general interior accessories may be compression-molded at a pressure of, for example, 10 kg to 50 kg, and interior decoration tiles may be compression-molded to 1000 kg or more.

Because the mixture is in the form of clay, it is possible to develop various products according to mold molding.

In one embodiment, the drying step 160 of the molding is a step of drying the molding.

In one embodiment, in the step of drying the molding, the compression-molded molding is placed at room temperature for 30 minutes to 1 hour, and then naturally dried at room temperature of 20° C. or higher for 3 to 5 days, or from 50° C. to 70° C. It may be dried for 24 hours to 30 hours in a dryer at °C.

For example, after molding the product, it may be left at room temperature for about 30 minutes to 1 hour until the product surface and the mold naturally fall off, and then naturally dried (cured) at a temperature of 20 ° C. or higher for 3 to 5 days. Alternatively, it may be dried for 24 hours to 30 hours in a dryer at 50°C to 70°C. As the water evaporates during drying, the materials harden. After drying, leave it in the sun for half a day to prevent mold growth.

In one embodiment, the post-treatment step 170 of the molding is a step of post-processing the dried molding.

In one embodiment, in the post-treatment of the dried molding, after sanding the molding with sandpaper to evenly treat the surface, decoration varnish, acrylic varnish, spa varnish, polyvinyl alcohol, shellac, drying oil, alkyd, It may be finished by applying at least one eco-friendly water-soluble interior finishing material selected from the group consisting of violin and rosin to surface treatment.

For example, the molding may be sanded with sandpaper to evenly treat the surface, and depending on the intended use, an eco-friendly water-soluble interior finishing material may be applied to reinforce the surface waterproofing and flame retardant treatment.

For example, the finishing material usable in the present invention may be to use a natural varnish, and for the natural varnish, both water-based or oil-based varnish may be used. For example, at least one selected from the group consisting of drying oil (flaxseed oil, sesame oil, walnut oil, etc.), shellac, alkyd, spa varnish, violin, and rosin may be used. The finishing layer derived from natural varnish may have a thickness of 0.1 mm to 1 mm, but is not limited thereto.

The method of manufacturing a building interior material using a shell according to an embodiment of the present invention is a value-upward waste utilization technology that regenerates discarded resources into more valuable uses, conventional high heat treatment of heating to 1000 ° C or more and treating with slaked lime No process, expensive chemical treatment process and expensive materials are required. Also, unlike other upcycling companies' methods, it can be used 100% regardless of the quality of the waste. With the addition of design, it is possible to expect triple effects such as creation of high added value with artistry, aesthetics, and functionality of new uses, as well as turning waste into resources, reducing waste treatment costs, and preventing marine pollution.

A building interior material according to another embodiment of the present invention is manufactured by the method for manufacturing a building interior material using a shell according to an embodiment of the present invention.

In one embodiment, the building interior material may include not only building interior materials, interior decoration tiles, but also emotional design interior accessories such as vases, picture frames, decorative trays, lights, and pendants.

The building interior material according to an embodiment of the present invention enables efficient recycling of shells, which are thrown away every year in Korea by 300,000 tons. As a shell classified as garbage, it can be artistically commercialized and valued. In addition, since it is pressed using natural ingredients, it is 50% lighter in weight but similar in strength compared to conventional glazed interior tiles and interior tiles made of mortar cement.

In the building interior material according to an embodiment of the present invention, all materials are made of natural resources, so it is possible to manufacture a product with similar strength and appearance to cement, which is the main component of existing cement, but light and harmless to the human body. Therefore, city dwellers with sensitive skin, families with children, and the elderly can all use it without worry.

The building interior material according to an embodiment of the present invention enables efficient recycling of shells, which are thrown away every year in Korea by 300,000 tons. The shell powder particles are naturally scattered and the aesthetic effect of the terrazzo type can be maximized, and the shells classified as garbage can be artistically commercialized. In addition, it is possible to manufacture not only building interior materials and interior decoration tiles, but also emotionally designed interior accessories such as vases, picture frames, decorative trays, lights, and pendants. In addition, since it is compressed using natural ingredients, it is 50% lighter in weight compared to conventional tiles, but similar in strength and harmless to the human body.

Hereinafter, the present invention will be described in detail with reference to the following Examples and Comparative Examples. However, the technical spirit of the present invention is not limited or limited thereto.

[Example 1]

1. Shell Preparation

Shell oysters, mussels, and abalone left from eating at farms and restaurants in the coastal region of Gyeongsangnam-do were collected.

2. Wash and dry

The shell was immersed in a water:glacial acetic acid mixing ratio of 10:1 per 10 kg of shells for 3 days until the surface was whitened so that all food debris, salt and foreign matter were removed.

After 3 days, the residues on the surface were brushed, washed with washing water to remove residual foreign substances, and then dried in an oven at 180° C. for 30 minutes.

3. Shell Powder Manufacturing

Oysters, mussels and abalone were pulverized into low particles of 0.01 mm to 1 mm, medium particles of 1 mm to 5 mm, and high particles of 5 mm to 15 mm, respectively.

4. Mixture Formation

The oyster, mussel and abalone shell powder prepared above was prepared as a solid mixture including 65% by weight, 30% by weight of sericite, and 5% by weight of pectin as a complex polysaccharide adhesive. Based on 100 parts by weight of the mixture, 60 parts by weight of water and 0.5 parts by weight of glycerin were added to form a mixture.

5. Formation of moldings

The clay-type mixture was put into a rubber mold, and medium and high particles of oysters, mussels, and abalone were scattered according to the intention to give an effect to the surface, and then the tile was formed by compressing it with a pressure of 120 kg.

6. Tile drying

After forming the tile, it was left at room temperature for 1 hour until the tile surface and the mold came off naturally, and then dried in a dryer at 60° C. for 30 hours. After drying, it was placed in the sun for half a day to prevent mold growth.

7. Post-processing

The surface was treated evenly by sanding the tile with sandpaper, and the surface was treated with shellac to enhance waterproofing.

[Example 2]

In Example 1, the mixture was prepared in the same manner as in Example 1, except that 2% by weight of the pink colorant was mixed in the total ratio.

2 to 4 are actual pictures of tiles manufactured according to Example 1 of the present invention, and FIG. 5 is actual pictures of tiles manufactured according to Example 1 (left) and Example 2 (right) of the present invention. .

According to the present invention, a tile having high strength as well as being environmentally friendly and having excellent aesthetic value was manufactured using shells, which are industrial wastes.

Therefore, it is possible to provide the effect of reducing the local waste treatment cost by solving the environmental problem of the shell and the effect of reducing the raw material cost according to the recycling of industrial waste. In addition, since all materials are made of natural resources, it can be manufactured into a product with similar strength and appearance to cement, but is light and harmless to the human body.

As described above, although the embodiments have been described with reference to the limited drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (15)

preparing the shell;
washing and drying the shell;
pulverizing the washed and dried shells to prepare shell powder;
mixing the shell powder, minerals and solvent to form a mixture;
forming a molded article by compression molding the mixture;
drying the molding; and
post-processing the dried molding;
including,
In the step of preparing the shell powder,
Each shell powder of oysters, mussels and abalone is pulverized to contain low particles of 0.01 mm to 1 mm, medium particles of 1 mm to 5 mm, and high particles of 5 mm to 15 mm,
In the step of forming the molding,
By adjusting the particle ratio and scattering at least one of the shell powder of each of the oysters, mussels and abalone, the shell powder particles are applied to the surface of the molding so that the naturally dispersed terrazzo form appears, and then compressed and molded,
In the step of post-processing the dried molding,
Characterized in forming a finishing layer by sanding the surface of the molding while maintaining the surface effect of the terrazzo form, and then surface-treating the surface of the molding with natural varnish to form a finishing layer,
A method for manufacturing interior materials for buildings using shells.
According to claim 1,
The shell includes at least one selected from the group consisting of clam shells, abalone shells, conch shells, sea urchin shells, oyster shells and closed coral,
The scallop shells are scallop shells, clams shells, scallop shells, cockle shells, cockle shells, clams shells, cockle shells, clams shells, pearl shells, elephant shells, oyster shells, mussel shells and clam shells Which comprises at least any one selected from the group,
A method for manufacturing interior materials for buildings using shells.
According to claim 1,
The step of washing and drying the shell is,
acid washing step; and
Surface Residue Cleaning Steps
which includes,
A method for manufacturing interior materials for buildings using shells.
4. The method of claim 3,
The acid washing is
The shell is in at least one acid solution selected from the group consisting of glacial acetic acid (CH ₃ COOH), nitric acid (HNO ₃ ), sulfuric acid (H ₂ SO ₄ ), chromic anhydride (CrO ₇ ) and hydrofluoric acid (HF). immersion for 12 hours to 96 hours,
The mixing ratio of water: acidic solution per 10 kg of the shell is 5: 1 to 20: 1,
A method for manufacturing interior materials for buildings using shells.
4. The method of claim 3,
The cleaning of the surface residue,
The acid-washed shell is washed with water using a brush,
A method for manufacturing interior materials for buildings using shells.
According to claim 1,
The step of washing and drying the shell is,
The drying is natural drying or oven drying for 20 to 30 minutes at a temperature of 180 ℃ to 200 ℃,
A method for manufacturing interior materials for buildings using shells.
delete According to claim 1,
The step of forming a mixture by mixing the shell powder, minerals and solvent,
a solid mixture comprising said shell powder, a silicate mineral and a complex polysaccharide adhesive; and a solvent; a first mixture comprising; or
a solid mixture comprising the shell powder, silicate mineral, clay mineral, sulfate mineral or both, and a complex polysaccharide adhesive; and a solvent; a second mixture comprising
which forms,
A method for manufacturing interior materials for buildings using shells.
9. The method of claim 8,
The solid mixture of the first mixture,
55% to 65% by weight of shell powder, 15% to 30% by weight of silicate mineral and 2% to 5% by weight of complex polysaccharide adhesive,
40 parts by weight to 60 parts by weight of water and 0.3 parts by weight to 0.5 parts by weight of glycerin based on 100 parts by weight of the solid mixture,
A method for manufacturing interior materials for buildings using shells.
9. The method of claim 8,
The solid mixture of the second mixture,
30% to 50% by weight of shell powder, 8% to 12% by weight of silicate mineral, 30% to 40% by weight of clay mineral, sulfate mineral or both, and 2% to 5% by weight of complex polysaccharide adhesive,
40 parts by weight to 60 parts by weight of water and 0.3 parts by weight to 0.5 parts by weight of glycerin based on 100 parts by weight of the solid mixture,
A method for manufacturing interior materials for buildings using shells.
According to claim 1,
The step of forming a mixture by mixing the shell powder, minerals and solvent,
Further comprising a color tint powder, a colorant, or both in the mixture in an amount of 1% to 5% by weight of the mixture,
A method for manufacturing interior materials for buildings using shells.
According to claim 1,
Compression molding the mixture to form a molded product,
Putting the mixture into a mold, loading it into a press device, and compression molding at a pressure of 10 kg to 5000 kg,
A method for manufacturing interior materials for buildings using shells.
According to claim 1,
The step of drying the molded product,
After leaving the compression-molded molding at room temperature for 30 minutes to 1 hour,
Dry naturally for 3 to 5 days at a room temperature of 20 ° C or higher, or
It will be dried for 24 hours to 30 hours in a dryer at 50 ° C. to 70 ° C.
A method for manufacturing interior materials for buildings using shells.
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