Carbon-reduced solar street lamp including moss, oyster shell, and recycled resin, and method for producing same

Abstract

The present invention relates to a carbon-reduced solar street lamp including moss, oyster shell, and recycled resin, and a method for producing same. Specifically, the present invention relates to the production of an antibacterial composition comprising metal powder, sea stone, nanocellulose, graphene, oyster shell, and water and provides a street lamp case including the composition.

Description

Carbon-reducing solar streetlight containing moss, moss, and recycled resin, and method for manufacturing the same

[0001] The present invention relates to a carbon-reducing solar street light comprising moss, moss, and recycled resin, and a method for manufacturing the same.

[0002] The Earth's climate system, where we live, is comprised of the atmosphere, hydrosphere, cryosphere, biosphere, and geosphere. Mosses, comprising approximately 23,000 species including algae and phytoplankton, are the first terrestrial plants to adapt to life. Mosses evolved from aquatic algae and migrated to land, and are primarily found in damp areas, such as on rocks near streams and rivers. Despite their small size, mosses play a vital role in many ways. The humus they produce helps other plants establish roots. Mosses have the ability to store and regulate large amounts of water within their cells. Furthermore, they are resistant to toxins, absorbing and removing metallic pollutants, such as lead, found in our environment. They can hold up to 20 times their weight in water, allowing them to withstand drought for extended periods.

[0003] The present invention can have excellent properties in reducing carbon emissions and purifying particulate pollutants such as nitrogen oxides and ozone in the surrounding environment by using moss plants in solar street lights.

[0004] In addition, it optimizes the ability to purify air pollutants and absorb fine dust, and carbon flower moss, which was the first moss in the world to obtain variety protection, has a photosynthetic speed 6 times faster than existing moss and has an average of 27 more leaves than control varieties (common moss varieties such as late frost moss). It has the characteristic of storing water more than 20 times its own volume in its body, and has the ability to adsorb harmful substances in the city (volatile organic compounds, fine dust, etc.) and excellent ability to absorb carbon dioxide, reducing carbon dioxide by more than 65% (700 ppm => 250 ppm). Elemental analysis showed that the carbon content was 44.6% on average. Carbon flower moss can grow at temperatures from +55℃ to -70℃, and is not picky about specific locations. Carbon flower moss, recycled ABS (acrylonitrile butadiene styrene copolymer) resin, polyethylene terephthalate, and moss are used to make solar streetlight cases.

[0005] The present invention aims to provide an environmentally friendly streetlight case with excellent mechanical properties using recycled plastic and waste paper.

[0006] The present invention provides an antibacterial composition comprising metal powder, marine sea rock, nanocellulose, graphene, mollusk shells and water.

[0007] The above metal powder contains one or more selected from gold, silver, titanium, copper, zinc, vanadium, iron, aluminum, magnesium, and calcium powder.

[0008] The above marine rock provides an antimicrobial composition comprising SiO2 10 to 40 wt%, Al2O₃ 10 to 25 wt%, SnO₂ 1 to 10 wt%, Fe2O₃ 0.5 to 10 wt%, MgO 0.1 to 2 wt%, K2O 0.5 to 3 wt%, Na2O 0.3 to 2 wt%, TiO₂ 10 to 40 wt%, ZnO 0.3 to 3 wt%, MnO 0.01 to 0.05 wt%, and P2O5 0.0005 to 0.005 wt%.

[0009] According to one aspect of the present invention, the antimicrobial composition may include 40 to 60 parts by weight of sea rock, 1 to 10 parts by weight of metal powder, 40 to 60 parts by weight of nanocellulose, 1 to 10 parts by weight of graphene, and 0.1 to 50 parts by weight of polyethylene terephthalate, per 100 parts by weight of water.

[0010] According to one aspect of the present invention, the metal powder may have an average particle diameter of 2 to 5 nm.

[0011] According to one aspect of the present invention, the marine stone may be in powder form and include an average particle size of 10 to 30 nm.

[0012] According to one aspect of the present invention, a molded product comprising the antimicrobial composition and a polymer resin can be provided.

[0013] According to one aspect of the present invention, the molded article may contain 0.1 to 10 parts by weight of the antimicrobial composition per 100 parts by weight of the polymer resin.

[0014] According to one aspect of the present invention, the polymer resin may include a regenerated polymer resin.

[0015] According to one aspect of the present invention, the regenerated polymer resin may include at least one selected from a styrene copolymer, an acrylic copolymer, a polyurethane resin, a terephthalate resin, and an olefin resin.

[0016] According to one aspect of the present invention, the molded product may include a streetlight case.

[0017] According to one aspect of the present invention, the streetlight case may include moss.

[0018] The present invention comprises the steps of S1) preparing an antimicrobial composition comprising metal powder, sea rock, nanocellulose, graphene, mollusk shells, and water; S2) mixing the antimicrobial composition using a ball mill; S3) preparing a master batch by mixing the mixed antimicrobial composition with a polymer resin; S4) A step of mixing the above-mentioned manufactured master batch and polymer resin and manufacturing a molded product by injection or extrusion molding the same, wherein the metal powder includes one or two or more selected from gold, silver, titanium, copper, zinc, vanadium, iron, aluminum, magnesium, and calcium powder, and the sea rock includes 10 to 40 wt% of SiO2, 10 to 25 wt% of Al2O₃, 1 to 10 wt% of SnO₂, 0.5 to 10 wt% of Fe2O₃, 0.1 to 2 wt% of MgO, 0.5 to 3 wt% of K2O, 0.3 to 2 wt% of Na2O, 10 to 40 wt% of TiO₂, 0.3 to 3 wt% of ZnO, 0.01 to 0.05 wt% of MnO, and 0.0005 to 0.005 wt% of P2O5. A method for manufacturing a molded product is provided, which comprises wt%.

[0019] According to one aspect of the present invention, the antimicrobial composition may include 40 to 60 parts by weight of sea rock, 1 to 10 parts by weight of metal powder, 40 to 60 parts by weight of nanocellulose, 1 to 10 parts by weight of graphene, and 0.1 to 50 parts by weight of polyethylene terephthalate, per 100 parts by weight of water.

[0020] According to one aspect of the present invention, the metal powder may have an average particle diameter of 2 to 5 nm.

[0021] According to one aspect of the present invention, the marine stone may be in powder form and have an average particle size of 10 to 30 nm.

[0022] According to one aspect of the present invention, the molded article may contain 0.1 to 10 parts by weight of the antimicrobial composition per 100 parts by weight of the polymer resin.

[0023] According to one aspect of the present invention, the polymer resin may include a regenerated polymer resin.

[0024] According to one aspect of the present invention, the regenerated polymer resin may include at least one selected from a styrene copolymer, an acrylic copolymer, a polyurethane resin, a terephthalate resin, and an olefin resin.

[0025] By mixing and processing the antimicrobial composition according to the present invention with a regenerated polymer, a streetlight case having excellent mechanical properties and an excellent antimicrobial effect can be provided.

[0026] Additionally, by including more moss in the streetlight case, it is effective in controlling humidity and reducing carbon.

[0027] Figure 1 is a schematic diagram of a solar street light of the present invention.

[0028] Figure 2 is an image of the entire panel of the solar street light of the present invention.

[0029] Figure 3 is an image of the upper and lower parts of the lamp device of the solar streetlight of the present invention.

[0030] Figure 4 is an image of the front and side of the moss device of the solar streetlight of the present invention.

[0031] The present invention is further described in detail below through specific examples or embodiments, including the attached drawings. However, the following specific examples or embodiments are merely references for describing the present invention in detail, and the present invention is not limited thereto, and may be implemented in various forms.

[0032] Additionally, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing specific embodiments only and is not intended to be limiting.

[0033] Additionally, the singular forms used in the specification and the appended claims are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0034] Additionally, when a part is said to "include" a component, this does not mean that it excludes other components, but rather that it may include other components, unless otherwise specifically stated.

[0035] The present invention provides an antibacterial composition comprising metal powder, sea rock, nanocellulose, graphene, molten rock, and water, wherein the metal powder comprises one or more selected from gold, silver, titanium, copper, zinc, vanadium, iron, aluminum, magnesium, and calcium powder, and the sea rock comprises 10 to 40 wt% of SiO2, 10 to 25 wt% of Al2O₃, 1 to 10 wt% of SnO₂, 0.5 to 10 wt% of Fe2O₃, 0.1 to 2 wt% of MgO, 0.5 to 3 wt% of K2O, 0.3 to 2 wt% of Na2O, 10 to 40 wt% of TiO₂, 0.3 to 3 wt% of ZnO, 0.01 to 0.05 wt% of MnO, and 0.0005 to 0.005 wt% of P2O₃. An antimicrobial composition comprising wt% is provided.

[0036] The above antibacterial composition has excellent miscibility when mixed with a polymer resin, and in particular, when the above antibacterial composition is mixed, it has the advantage of having excellent mechanical properties and an excellent antibacterial effect at the same time.

[0037] The above metal powder means a powder containing one or more selected from gold, silver, titanium, copper, zinc, vanadium, platinum, nickel, iron, aluminum, magnesium, and calcium, and specifically, the metal powder may be a powder containing one or more selected from gold, silver, titanium, copper, zinc, and magnesium, and specifically, the metal powder may be a powder containing one or more selected from silver, titanium, copper, and zinc, and specifically, the metal powder may be a powder composed of silver, titanium, copper, and zinc.

[0038] The above metal powder may be, but is not limited to, an oxide or a hydroxide.

[0039] The above metal powder means a mixture of each metal powder, and for example, it may be a mixture of silver, titanium, copper, and zinc powders in equal amounts.

[0040] According to one aspect of the present invention, the metal powder may have an average particle diameter of 1 to 20 nm, specifically 2 to 12 nm, specifically 2 to 10 nm, specifically 2 to 5 nm, but is not limited thereto.

[0041] The above marine rock may mean that it contains 10 to 40 wt% of SiO2, 10 to 25 wt% of Al2O₃, 1 to 10 wt% of SnO₂, 0.5 to 10 wt% of Fe2O₃, 0.1 to 2 wt% of MgO, 0.5 to 3 wt% of K2O, 0.3 to 2 wt% of Na2O, 10 to 40 wt% of TiO₂, 0.3 to 3 wt% of ZnO, 0.01 to 0.05 wt% of MnO, and 0.0005 to 0.005 wt% of P2O5.

[0042] According to one aspect of the present invention, the marine stone may be in powder form and have an average particle size of 1 to 30 nm, but is not limited thereto.

[0043] The above nanocellulose may be, but is not limited to, cellulose nanofibers (CNF) or cellulose nanocrystals.

[0044] The above cellulose nanofibers may have a diameter of 5 to 100 nm and a length of 300 nm to 100 μm, but are not limited thereto. In addition, the cellulose nanocrystals may have a diameter of 2 to 20 nm and a length of 100 to 600 nm, but are not limited thereto.

[0045] According to one aspect of the present invention, the water may be ultrapure water or distilled water, but is not limited thereto.

[0046] The above antimicrobial composition may include a carbon material, and specifically may include at least one selected from carbon nanotubes, carbon black, and graphene, and specifically may include graphene, but is not limited thereto.

[0047] The above-mentioned oyster shell refers to oyster shells, and may be specifically calcium carbonate. By using the above-mentioned oyster shells, waste oyster shells can be reused, making it environmentally friendly.

[0048] As the above-mentioned sea rock, metal powder, cellulose, molasses and graphene are mixed, the antibacterial effect is excellent, and at the same time, when mixed with a polymer resin, the mixing property is excellent and the mechanical strength also increases.

[0049] According to one aspect of the present invention, the antimicrobial composition may contain 40 to 60 parts by weight of sea rock, 1 to 10 parts by weight of metal powder, 40 to 60 parts by weight of nanocellulose, 1 to 10 parts by weight of graphene, and 0.1 to 50 parts by weight of polystyrene, per 100 parts by weight of water. Specifically, the antimicrobial composition may contain 40 to 60 parts by weight of sea rock, 1 to 10 parts by weight of metal powder, 40 to 60 parts by weight of nanocellulose, 1 to 5 parts by weight of graphene, and 0.1 to 10 parts by weight of polystyrene, per 100 parts by weight of water, but is not limited thereto.

[0050] As the above antimicrobial composition is mixed in the above content, when the above antimicrobial composition is coated on a substrate, it has the advantage of excellent antibacterial and deodorizing effects, and in particular, has the advantage of excellent compatibility with a polymer resin.

[0051] The mixture of the above antibacterial composition and the polymer resin has the advantage of excellent mechanical properties and moldability as each composition is uniformly dispersed, and in particular, also excellent antibacterial properties.

[0052] The above antibacterial composition and polymer resin can be mixed and extruded or injection-molded to provide a molded product.

[0053] The above molded product may contain 0.1 to 10 parts by weight of the antibacterial composition per 100 parts by weight of the polymer resin, but is not limited thereto.

[0054] As it is mixed with the above contents, it has the advantage of excellent physical properties and also excellent antibacterial properties.

[0055] According to one aspect of the present invention, the polymer resin may include a regenerated polymer resin.

[0056] The polymer resin may be, but is not limited to, virgin polymer resin, regenerated polymer resin, or a mixture thereof. When the regenerated polymer resin is used, its physical properties may be deteriorated compared to virgin polymer resin, but by mixing the antimicrobial composition, its physical properties may be relatively improved.

[0057] Accordingly, the molded product of the present invention also helps reduce environmental pollution by recycling molded parts, recycled polymers, etc.

[0058] According to one aspect of the present invention, the regenerated polymer resin may include at least one selected from a styrene copolymer, an acrylic copolymer, a polyurethane resin, a terephthalate resin, and an olefin resin, and specifically, may include a styrene copolymer and a terephthalate resin.

[0059] The styrene-based copolymer may specifically include an acrylonitrile butadiene styrene copolymer (ABS), and the terephthalate-based resin may specifically include a polyethylene terephthalate (PET) resin, but is not limited thereto.

[0060] The above molded product may include a streetlight case. A streetlight case manufactured using the above molded product has excellent durability and water resistance, and thus has the advantage of not deteriorating even when left unattended for a long period of time.

[0061] Additionally, the streetlight case may contain moss, specifically carbonaceous moss. Carbonaceous moss has excellent survivability and can withstand long periods of time, even in dry conditions, making it ideal for grafting onto streetlight cases that are difficult to maintain.

[0062] In addition, by grafting the above carbon flower moss onto streetlights, it has the advantage of absorbing carbon dioxide emitted from cars and other sources, thereby reducing carbon emissions.

[0063] An example of introducing moss into the above streetlight case is described in FIGS. 1 and 2.

[0064] Now, the antibacterial composition of the present invention and its manufacturing method will be described.

[0065] The present invention comprises the steps of S1) preparing an antimicrobial composition comprising metal powder, sea rock, nanocellulose, graphene, mollusk shells, and water; S2) mixing the antimicrobial composition using a ball mill; S3) preparing a master batch by mixing the mixed antimicrobial composition with a polymer resin; S4) A step of mixing the above-mentioned manufactured master batch and polymer resin and manufacturing a molded product by injection or extrusion molding the same, wherein the metal powder includes one or two or more selected from gold, silver, titanium, copper, zinc, vanadium, iron, aluminum, magnesium, and calcium powder, and the sea rock includes 10 to 40 wt% of SiO2, 10 to 25 wt% of Al₂O₃, 1 to 10 wt% of SnO₂, 0.5 to 10 wt% of Fe2O₃, 0.1 to 2 wt% of MgO, 0.5 to 3 wt% of K2O, 0.3 to 2 wt% of Na2O, 10 to 40 wt% of TiO₂, 0.3 to 3 wt% of ZnO, 0.01 to 0.05 wt% of MnO, and 0.0005 to 0.005 wt% of P₂O₃. A method for manufacturing a molded product is provided, which comprises wt%.

[0066] The above master batch is generally a composition for uniformly mixing a compound when mixing it into a polymer, and may be a composition in which 0.1 to 50 parts by weight of an antibacterial composition is mixed with respect to 100 parts by weight of the polymer resin, but is not limited thereto as long as the content is included in the molded product described above.

[0067] In addition, the extrusion or injection temperature is not limited to a general polymer melting range, but may be performed at, for example, 200 to 350°C.

[0068] The above polymer resin may have a melting index (190°C, 2.16 kg) of 1 to 20 g / min according to the ASTM D1238 standard measurement method, but is not limited thereto.

[0069] According to one aspect of the present invention, the antimicrobial composition may contain 40 to 60 parts by weight of sea rock, 1 to 10 parts by weight of metal powder, 40 to 60 parts by weight of nanocellulose, 1 to 10 parts by weight of graphene, and 0.1 to 50 parts by weight of stellate per 100 parts by weight of water; however, the contents have been described in detail above, and thus are omitted here.

[0070] According to one aspect of the present invention, the metal powder may have an average particle diameter of 2 to 5 nm, and since the metal powder has been described in detail above, a detailed description thereof is omitted here.

[0071] According to one aspect of the present invention, the marine stone may be in powder form and have an average particle size of 10 to 30 nm, but this has also been described in detail above and is therefore omitted here.

[0072] According to one aspect of the present invention, the molded article may contain 0.1 to 10 parts by weight of the antimicrobial composition per 100 parts by weight of the polymer resin, but this has also been described in detail above and is therefore omitted here.

[0073] According to one aspect of the present invention, the polymer resin may include a regenerated polymer resin, but this has also been described in detail above and is therefore omitted here.

[0074] According to one aspect of the present invention, the regenerated polymer resin may include at least one selected from a styrene copolymer, an acrylic copolymer, a polyurethane resin, a terephthalate resin, and an olefin resin, but this has also been described in detail above and is therefore omitted here.

[0075]

[0076] The present invention will be described in more detail based on the following examples and comparative examples. However, the following examples and comparative examples are merely illustrative examples for further explaining the present invention, and the present invention is not limited by the following examples and comparative examples.

[0077]

[0078] [Measuring Melting Index]

[0079] Measured according to ASTM D1238 standard measurement method.

[0080]

[0081] [Deodorization characteristic test]

[0082] The deodorizing properties of the antibacterial coating solutions of Example 1, Comparative Example 1, and Comparative Example 2 were evaluated as follows for the removal rate of trimethylamine, hydrogen sulfide, and methyl mercaptan, respectively.

[0083]

[0084] [trimethylamine]

[0085] 1) Specimen size: Polyethylene resin film for deodorization test, 2.5Tx50x50㎜

[0086] 2) Antibacterial coating solution application amount: 200~300mg

[0087] 3) Gas bag: 5~7 liters of gas bag

[0088] 4) Lighting: Fluorescent lamp 4,500 ~ 6,000 lx (UV cut)

[0089] 5) Gas: Trimethylamine Initial input amount: 1~3 ppm

[0090] 6) Measurement time: After 5 hours

[0091]

[0092] [hydrogen sulfide]

[0093] 1) Specimen size: Polypropylene resin film for deodorization test, 2.5Tx50x50㎜

[0094] 2) Antibacterial coating solution application amount: 200~300mg

[0095] 3) Gas bag: 5~7 liters of gas bag

[0096] 4) Lighting: Fluorescent lamp 4,500~6,000㏓ (UV cut)

[0097] 5) Gas: Initial hydrogen sulfide input: 1~3 ppm

[0098] 6) Measurement time: After 5 hours

[0099]

[0100] [ammonia]

[0101] 1) Specimen size: Polyurethane resin film for deodorization test, 2.5Tx50x50㎜

[0102] 2) Antibacterial coating solution application amount: 200~300mg

[0103] 3) Gas bag: 5~7 liters of gas bag

[0104] 4) Lighting: Fluorescent lamp 4,500~6,000㏓ (UV cut)

[0105] 5) Gas: Ammonia Initial input amount: 1~3 ppm

[0106] 6) Measurement time: After 5 hours

[0107]

[0108] The above deodorization rate % satisfies the following equation 1.

[0109] [Formula 1]

[0110] Deodorization rate (%) = ((Cb-Cs) / Cb)×100

[0111] Cb: Blank, the concentration of test gas remaining in the test gas bag after 3 hours

[0112] Cs: Sample, concentration of test gas remaining in the test gas bag after 3 hours

[0113]

[0114] [Film bacteriostatic properties test]

[0115] Antibacterial activity values ​​against Staphylococcus aureus and Escherichia coli were measured according to ATCC 6538 (Korea Testing & Research Institute) of Example 2 and Comparative Example 3 above.

[0116] Under the above conditions, the culture time of the sample was 24 hours, and 0.4 ml of the 24-hour pre-culture solution was applied on the antibacterial film specimen (50x50 mm) and then covered with a standard film (acrylic film). After the test, the film was recovered, and the bacteria were recovered according to JIS Z 2801 to confirm the antibacterial activity value and antibacterial effect.

[0117]

[0118] [Tensile strength / Elongation / Impact strength]

[0119] Tensile strength and elongation were measured according to ASTM D638, and Izod impact strength was measured according to ASTM D256.

[0120]

[0121] [Example 1]

[0122] A mixed composition was prepared by mixing 51.17 parts by weight of sea rock, 3.93 parts by weight of mixed powder of silver, titanium, copper, and zinc metals, 51.98 parts by weight of nanocellulose, 4 parts by weight of graphene, and 5 parts by weight of molten iron with 100 parts by weight of water. The mixed composition was wet-ground using a Rotate Mill (RRG-100) device, and milled for 50 minutes so that the average particle size of the raw materials was 25 nm, thereby preparing an antibacterial composition. A deodorizing property test of the prepared antibacterial composition was conducted, and the results are shown in Table 1.

[0123] The above marine stone was purchased from Ace MD Co., Ltd., and as a result of analysis using the KS L 3316 refractory product fluorescence analysis method of the Korea Testing & Research Institute for Chemical Industry, the marine stone was measured to contain 15.3 wt% of SiO₂, 10.2 wt% of Al2O₃, 3.56 wt% of SnO₂, 0.89 wt% of Fe2O₃, 0.41 wt% of MgO, 0.91 wt% of K2O, 0.53 wt% of Na2O, 15.009 wt% of TiO₂, 0.799 wt% of ZnO, 0.02 wt% of MnO, and 0.001 wt% of P2O.

[0124]

[0125] [Comparative Example 1]

[0126] The same procedure was followed as in Example 1 except that graphene was not used.

[0127]

[0128] [Comparative Example 2]

[0129] The same procedure was followed as in Example 1, except that the angle of incidence was not used.

[0130]

[0131] Deodorization rate (%) Trimethylamine hydrogen sulfide methyl mercaptan Example 1989591 Comparative example 1787770 Comparative example 2737177

[0132]

[0133] Tables 2, 3 and 4 were measured according to the test methods described after applying the antimicrobial composition of Example 1 to an iron plate and drying it.

[0134]

[0135] Test Item Unit Sample Classification Result Test Method Water Permeability (0.3 MPa, 3 hours) - Iron plate 1mm & coating thickness 1mm or more None KS F 4919:2008 - Iron plate 1mm & coating thickness 2mm or more None - Iron plate 1mm & coating thickness 3mm or more None

[0136]

[0137] Test Item Unit Sample Classification Result Test Method Adhesion (X cut) - Iron plate 1mm & coating thickness 1mm or more None KS M ISO16276-2: 2013 - Iron plate 1mm & coating thickness 2mm or more None - Iron plate 1mm & coating thickness 3mm or more None

[0138]

[0139] Test Item Unit Sample Classification Result Test Method Neutral salt water spray test (160h, swelling and rust prevention) - Iron plate 1mm & coating thickness 1mm or more, no KS D 9502: 2009 - Iron plate 1mm & coating thickness 2mm or more, no KS D 9502: 2009 - Iron plate 1mm & coating thickness 3mm or more, no

[0140]

[0141] [Example 2]

[0142] [Master Batch Manufacturing]

[0143] For 100 parts by weight of recycled PET resin (melt index (190°C, 2.16 kg), 10 g / 10 min) as a thermoplastic polymer resin, 20 parts by weight of dried antibacterial powder of the antibacterial composition of Example 1 was added to a masterbatch mixer (AT-50-D, Alicia) to prepare an antibacterial masterbatch.

[0144] Plastic Film Manufacturing

[0145] 100 parts by weight of recycled PET resin (melt index (190℃, 2.16kg), 10g / 10min) as a thermoplastic polymer resin, 100 parts by weight of recycled ABS resin (melt index (190℃, 2.16kg), 11g / 10min), and 20 parts by weight of the master batch manufactured above were included, and the mixture was melt-extruded to manufacture a film having a thickness of 10 mm.

[0146]

[0147] [Comparative Example 3]

[0148] The same procedure was followed as in Example 2 except that the master batch was added.

[0149]

[0150] Test item Test result Comparative example 3 Example 2 JIS Z 2801 Staphylococcus aureus ATCC 6538 (Staphylococcus aureus) Inoculation concentration Initial bacterial count (CFU / cm2) 1.3 x 10⁴ 1.2 x 10⁴ Bacterial count after 24 hours (CFU / cm2) 1.1 x 10 6 <0.62 Antibacterial activity value (%) - 99.9 Antibacterial activity value (log) - 6.4 Escherichia coli ATCC 8739 (E. coli) Concentration of inoculated bacteria (2.2 x 10 5 CFU / ㎖)Initial bacterial count (CFU / ㎠)1.3 x 10⁴1.3 x 10⁴Bacterial count after 24 hours (CFU / ㎠)1.2 x 10 6 6.1 x 10² Antibacterial activity (%) - 99.9 Antibacterial activity (log) - 3.2

[0151] * Antibacterial activity value = log 10 {(control number of bacteria after 24 hours) / (sample number of bacteria after 24 hours)}

[0152]

[0153] Physical property unit Example 2 Comparative example 3 Mechanical properties Tensile strength kg / cm 2 9545 Elongation % 150256 Impact strength kgf·cm / cm 2 46.650.5

[0154]

[0155] As described above, the present invention has been described with specific details and limited examples and drawings, but these are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above examples, and those skilled in the art to which the present invention pertains can make various modifications and variations based on this description.

[0156] Therefore, the idea of ​​the present invention should not be limited to the described embodiments, and all things that are equivalent or equivalent to the following claims as well as the claims are considered to fall within the scope of the idea of ​​the present invention.

Claims

1. An antibacterial composition comprising metal powder, marine sea rock, nanocellulose, graphene, mollusc shell, and water, The above metal powder contains one or more selected from gold, silver, titanium, copper, zinc, vanadium, iron, aluminum, magnesium, and calcium powder. An antimicrobial composition, wherein the above marine rock comprises SiO2 10 to 40 wt%, Al2O₃ 10 to 25 wt%, SnO₂ 1 to 10 wt%, Fe2O₃ 0.5 to 10 wt%, MgO 0.1 to 2 wt%, K2O 0.5 to 3 wt%, Na2O 0.3 to 2 wt%, TiO₂ 10 to 40 wt%, ZnO 0.3 to 3 wt%, MnO 0.01 to 0.05 wt%, and P2O5 0.0005 to 0.005 wt%.

2. In paragraph 1, An antimicrobial composition comprising 40 to 60 parts by weight of sea rock, 1 to 10 parts by weight of metal powder, 40 to 60 parts by weight of nanocellulose, 1 to 10 parts by weight of graphene, and 0.1 to 50 parts by weight of sulphate, per 100 parts by weight of water.

3. In paragraph 1, An antimicrobial composition wherein the metal powder has an average particle diameter of 2 to 5 nm.

4. In paragraph 1, An antibacterial composition wherein the above marine stone is in powder form and has an average particle size of 10 to 30 nm.

5. A molded article comprising an antimicrobial composition selected from any one of claims 1 to 4 and a polymer resin.

6. In paragraph 5, A molded product comprising 0.1 to 10 parts by weight of the antibacterial composition per 100 parts by weight of the polymer resin.

7. In paragraph 5, A molded product wherein the polymer resin comprises a recycled polymer resin.

8. In paragraph 7, A molded product, wherein the above-mentioned regenerated polymer resin includes at least one selected from a styrene copolymer, an acrylic copolymer, a polyurethane resin, a terephthalate resin, and an olefin resin.

9. In paragraph 5, The above molded product is a molded product including a streetlight case.

10. In paragraph 9, The above streetlight case is a molded product containing moss. 11.S1) A step of preparing an antibacterial composition comprising metal powder, sea rock, nanocellulose, graphene, mollusc shell and water; S2) A step of mixing the above antibacterial composition using a ball mill; S3) A step of preparing a master batch by mixing the above mixed antimicrobial composition into a polymer resin; S4) A step of mixing the above-mentioned manufactured master batch and polymer resin and manufacturing a molded product by injection or extrusion molding, The above metal powder contains one or more selected from gold, silver, titanium, copper, zinc, vanadium, iron, aluminum, magnesium, and calcium powder. A method for manufacturing a molded product, wherein the above-mentioned marine rock comprises SiO2 10 to 40 wt%, Al2O₃ 10 to 25 wt%, SnO₂ 1 to 10 wt%, Fe2O₃ 0.5 to 10 wt%, MgO 0.1 to 2 wt%, K2O 0.5 to 3 wt%, Na2O 0.3 to 2 wt%, TiO₂ 10 to 40 wt%, ZnO 0.3 to 3 wt%, MnO 0.01 to 0.05 wt%, and P2O5 0.0005 to 0.005 wt%.

12. In paragraph 10, A method for manufacturing a molded product, wherein the antibacterial composition comprises 40 to 60 parts by weight of sea rock, 1 to 10 parts by weight of metal powder, 40 to 60 parts by weight of nanocellulose, 1 to 10 parts by weight of graphene, and 0.1 to 50 parts by weight of sulphate, per 100 parts by weight of water.

13. In paragraph 10, A method for manufacturing a molded product, wherein the above-mentioned sea rock is in powder form and has an average particle size of 10 to 30 nm.

14. In paragraph 10, A method for manufacturing a molded product, wherein the molded product comprises 0.1 to 10 parts by weight of the antibacterial composition per 100 parts by weight of the polymer resin.

15. In paragraph 10, A method for manufacturing a molded product, wherein the polymer resin includes a regenerated polymer resin.

16. In paragraph 15, A method for manufacturing a molded product, wherein the above-mentioned regenerated polymer resin includes at least one selected from a styrene-based copolymer, an acrylic-based copolymer, a polyurethane-based resin, a terephthalate-based resin, and an olefin-based resin.

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