CN112040770B - Buoyancy body using environment-friendly material and manufacturing method thereof - Google Patents
Buoyancy body using environment-friendly material and manufacturing method thereof Download PDFInfo
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- CN112040770B CN112040770B CN201980027049.7A CN201980027049A CN112040770B CN 112040770 B CN112040770 B CN 112040770B CN 201980027049 A CN201980027049 A CN 201980027049A CN 112040770 B CN112040770 B CN 112040770B
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- 239000000463 material Substances 0.000 title claims abstract description 105
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000001954 sterilising effect Effects 0.000 claims abstract description 20
- 239000010902 straw Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 239000005445 natural material Substances 0.000 claims abstract description 17
- 238000010298 pulverizing process Methods 0.000 claims abstract description 16
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 14
- 239000011425 bamboo Substances 0.000 claims abstract description 14
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 12
- 240000008042 Zea mays Species 0.000 claims abstract description 12
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 12
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 12
- 235000005822 corn Nutrition 0.000 claims abstract description 12
- 238000004806 packaging method and process Methods 0.000 claims abstract description 7
- 244000082204 Phyllostachys viridis Species 0.000 claims abstract 2
- 239000011148 porous material Substances 0.000 claims description 41
- 238000001035 drying Methods 0.000 claims description 33
- -1 polyethylene Polymers 0.000 claims description 32
- 239000004743 Polypropylene Substances 0.000 claims description 24
- 229920001155 polypropylene Polymers 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 229910001868 water Inorganic materials 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
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- 238000000748 compression moulding Methods 0.000 claims description 13
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- 235000009566 rice Nutrition 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
- A01K75/04—Floats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/20—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/20—Making multilayered or multicoloured articles
- B29C43/203—Making multilayered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
- B29K2001/08—Cellulose derivatives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2231/00—Material used for some parts or elements, or for particular purposes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Animal Husbandry (AREA)
- Marine Sciences & Fisheries (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Combustion & Propulsion (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a buoyant body using an environmentally friendly material and a method for producing the same, and more particularly to a buoyant body using an environmentally friendly material obtained by cutting and pulverizing a light weight natural material (11) such as bamboo, corn stalk, reed, straw, etc., sterilizing the cut material with a sterilizing solution, coating the sterilized material with a silicate solution, and then packaging the coated material with an outer material (4) of a PE-PP material, and a method for producing the buoyant body.
Description
Technical Field
The present invention relates to a buoyant body using an environmentally friendly material and a method for producing the same, and more particularly, to a buoyant body using an environmentally friendly material which is obtained by pulverizing a porous lightweight natural material such as bamboo, corn stalk, reed, or straw, sterilizing, molding, coating a silicate solution thereon, and wrapping the resultant product with an outer material such as a PE-PP material, and a method for producing the same.
Background
Generally, a buoyant body or a buoy is used to float offshore in a separate farm, or a culture structure such as a net or a rope is connected to a main body of the buoy, and is used to culture attached organisms such as sea sedge, kelp, or oyster in seawater.
Floats in use today are broadly classified into those of foam (polystyrene foam) and those of polyethylene foam.
The float made of foamed plastic is widely used because of its light weight, strong buoyancy, non-corrosiveness, easy installation and low cost, but has the problems of fragile material, easy abrasion, and loss of buoyancy by absorbing water for a long time.
Further, since the foamed plastic itself has many pores when it is easily broken by friction with the water surface or collides with an object floating on the water surface, the original function as a float cannot be exerted due to the reduction of buoyancy caused by the coagulation of seawater when it is used in seawater for a long time, and fragments broken by the float on the water surface, which causes pollution.
Further, the float made of the polyethylene foam resin has better fracture resistance and tensile strength than the float made of the foamed plastic material, and thus there is no fear of breakage due to various factors.
As a prior art for improving the above problems, korean registered patent No. 10-1843422 (2018.03.23) discloses a "float using foamed polypropylene and a method for manufacturing the same".
The above prior art includes: a main body part which is provided with an insertion groove inside, is formed in a cylindrical shape, and is composed of expanded polypropylene (EPP) particles; and an insertion part which is combined with the insertion groove, has an expansion force to press the inner side wall of the insertion groove outwards and is composed of expanded polypropylene particles;
the density of the insertion part is lower than that of the main body part, and the insertion part and the main body part are closely combined because the expansion force of the insertion part is higher than that of the main body part in the high-temperature drying process of the insertion part and the main body part.
However, the above-mentioned technology is composed of expanded polypropylene (EPP), and basically has the characteristics of polypropylene, so that it is excellent in heat resistance, strong in pharmaceutical properties, and environmentally friendly, but there is a problem that polypropylene is expensive.
Disclosure of Invention
Problems to be solved
The present invention has been made in view of the above problems, and it is an object of the present invention to provide a buoyant body using an environmentally friendly material, which is economically advantageous and environmentally friendly by pulverizing porous lightweight natural materials such as bamboo, corn stalk, reed, and straw, molding the same using donkey-hide gelatin, and coating the same with a silicate solution as an inner material of a buoy, and which is improved in durability by molding an outer material of the inner material of the buoy using a Polyethylene (PE) or polypropylene (PP) material, and a method for manufacturing the same.
Means for solving the problems
In order to achieve the above objects, the present invention provides a buoyant body using an environmentally friendly material,
a porous material, which is prepared by cutting and mixing a plurality of natural materials selected from bamboo, reed, corn stalk, wheat straw, sawdust and rice straw according to a specified size, sterilizing the natural materials by using a sterilizing solution mixed with sulfur, caustic soda and water, and drying the natural materials at a temperature of 100 ℃ to 120 ℃; a silicate solution applied to the outside of the porous material so as to form the porous material into a predetermined shape; an outer material for wrapping the outer part of the inner material of the float, which is made of porous material coated with the silicate solution;
wherein the external material is made of one of polyethylene or polypropylene.
The polypropylene is composed of an expandable polypropylene.
In addition, the method for manufacturing the buoyant body using the environmentally friendly material of the present invention comprises: a cutting step of cutting a plurality of bamboo, reed, corn stalk, wheat straw, sawdust, and rice straw into predetermined sizes; a sterilization step of adding a sterilization solution comprising 15 to 20 parts by weight of sulfur, 10 to 20 parts by weight of caustic soda, and 60 to 70 parts by weight of water to 100 parts by weight of the natural material cut in the cutting step, and heating the solution for 20 to 30 minutes to produce a sterilized porous material; a drying step of drying the porous material sterilized in the sterilization step in a dryer at a temperature of 100 to 120 ℃ for 30 to 40 minutes; a coating step of coating the porous material dried in the drying step with a coating material obtained by mixing a silicate and 50 parts by weight of water with respect to 100 parts by weight of the silicate, to produce a float interior material; and a packaging step of packaging the exterior of the float interior material produced in the coating step with an exterior material made of one of polyethylene and polypropylene.
The drying process further includes: a pulverization step of pulverizing the porous material dried in the dryer into a powder material in a powder form.
The drying step includes: a compression molding step of mixing the powder material produced in the pulverization step with donkey-hide gelatin, and then compression molding the mixture into a predetermined shape; and a donkey-hide gelatin drying step of drying the porous material molded in the compression molding step in the dryer at a temperature of 100 ℃ for 20 to 30 minutes.
Effects of the invention
The buoyancy body using the environment-friendly material and the manufacturing method thereof of the present invention have the following effects:
the main materials of the inner materials of the buoy forming the buoyancy body are made of light natural materials such as bamboo, reed, corn stalk, wheat straw, sawdust, rice straw and the like which are commonly used around people, and the buoyancy body is made of the light natural materials, so that the cost is saved;
second, a float inner material for enhancing water resistance by applying a silicate solution to the outer circumferential surface of the natural material, and an outer material for wrapping the outer portion of the float inner material to form a predetermined shape, the outer material being made of a foamable polypropylene, the float inner material being easily molded into a predetermined shape, and buoyancy being enhanced by the porous property of the material;
thirdly, a powder process of pulverizing the porous natural material into a powder material in a powder form, and a compression molding process of mixing the rest of the donkey-hide gelatin and molding the mixture into a predetermined shape, thereby producing a buoyant body having various shapes;
fourth, a porous material mixed with various natural materials is used as an inner material of the float, since a natural material which is easily found is used, economical efficiency is high, and it can be used as a firing material after use.
Drawings
FIG. 1 is a schematic diagram illustrating a buoy utilizing expanded polypropylene according to the prior art;
FIG. 2 is a schematic view of the buoyant body using environmental friendly materials according to the present invention;
fig. 3 is a schematic view illustrating a method for manufacturing a buoyant body using an eco-friendly material according to the present invention.
Description of the reference numerals
10: porous material 11: natural material
20: silicate solution 30: interior material of buoy
40: exterior material
S10: cutting step S20: sterilizing step
S30: drying step S31: grinding process
S32: compression molding step S33: drying process of donkey-hide gelatin
S40: coating step S50: packaging process
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2 to 3, the buoyancy body using the environment-friendly material according to the present invention is a porous material 10 which is prepared by cutting and mixing a plurality of natural materials 11 selected from bamboo, reed, corn stalk, wheat straw, sawdust, and rice straw according to a predetermined size, sterilizing the natural materials with a sterilizing solution containing sulfur, caustic soda, and water, and drying the natural materials at a temperature of 100 to 120 ℃; a silicate solution 20 applied to the outside of the porous material 10 so as to form the porous material 10 into a predetermined shape; the outer material 40 is formed to cover the outer portion of the float inner material 30 made of the porous material 10 coated with the silicate solution 20.
The outer material 40 is made of one of polyethylene and polypropylene.
The natural material 11 can be substituted by a material having pores formed therein, specifically, a material having a cylindrical film such as bamboo inside, such as a wood material of winter jasmine tree, phoenix tree, etc., or a material having a cylindrical film such as chufa, shiba, etc. Bamboo among the natural materials 11 has excellent characteristics of being used as a material of a buoyant body when completely dried due to its low water absorption rate and the formation of a triple film for blocking air.
Further, the polypropylene is made of a foamable polypropylene, and thus has a better water resistance and an improved buoyancy.
In addition, the method for manufacturing the buoyant body using the environmentally friendly material of the present invention comprises: a cutting step S10, cutting various kinds of bamboo, reed, corn stalk, wheat straw, sawdust and rice straw into predetermined sizes; a sterilization step S20 of adding a sterilization solution comprising 15 to 20 parts by weight of sulfur, 10 to 20 parts by weight of caustic soda, and 60 to 70 parts by weight of water to 100 parts by weight of the natural material 11 cut in the cutting step S10, and heating the resultant mixture for 20 to 30 minutes to produce a sterilized porous material 10; a drying step S30 of drying the porous material 10 sterilized in the sterilization step S20 in a dryer at a temperature of 100 to 120 ℃ for 30 to 40 minutes; a coating step S40 of coating the porous material 10 dried in the drying step S30 with a coating material obtained by mixing a silicate and 50 parts by weight of water with respect to 100 parts by weight of the silicate, to produce a float interior material 30; the packaging step S50 is to package the float interior material 30 produced in the coating step S40 with an exterior material 40 made of one of polyethylene and polypropylene.
Here, the cutting step S10 may be determined to have various sizes according to the size of the material to be mixed. The drying step S30 removes moisture existing inside the porous material 10, and the coating step S40 applies the coating material so as to prevent air contained in the internal pores of the porous material 10 from leaking to the outside.
The outer member 40 used in the packaging step S50 may be formed in various shapes and sealed so as to include the float inner member 30 therein.
The drying step S30 further includes a pulverization step S31 of pulverizing the porous material 10 dried in the dryer into a powder material 12 in the form of powder. Even if the porous material 10 is made of a powder form, the air bubbles contained in the natural material 11 have a property of floating on the water surface, and thus can be used as a buoyant body.
The drying step S30 includes: a compression molding step S32 of mixing the powdery material 12 produced in the pulverization step S31 with donkey-hide gelatin, and then compression molding the mixture into a predetermined shape; the donkey-hide gelatin drying step S33 is a step of drying the porous material 10 molded in the compression molding step S32 in the dryer at a temperature of 100 ℃ for 20 to 30 minutes.
The method for manufacturing a buoyant body machine using an environmentally friendly material according to the present invention having the above-described configuration functions as follows:
the buoyancy body using environment-friendly material of the present invention is very environment-friendly because it uses light-weight natural material 11 as the inner material 30 of the buoy and its exterior is packed by the outer material 40 which is also made of one of polyethylene and polypropylene as environment-friendly material, and it is economical because it uses cheap natural material 11, and it can recycle the used buoyancy body as the firing material.
Here, the natural material 11 is formed by cutting a plurality of kinds of bamboo, reed, corn stalk, wheat straw, sawdust, and rice straw into a predetermined size and mixing them, and the natural material 11 is mainly characterized by a lightweight material having pores formed therein. Bamboo, reed, corn stalk, wheat straw, and the like have a characteristic of having a strong surface water resistance.
The porous material 10 obtained by cutting and drying the natural material 11 is coated with the silicate solution 20 to prevent direct contact with water, so that buoyancy can be maintained for a long time at sea.
The porous material 10 coated with the silicate solution 20 is finally packed in the outer material 40 having a strong water-proof property, thereby improving the durability of the buoyant body, and particularly, when the outer material 40 is formed of a foamable polypropylene, the buoyancy is improved, so that the conventional buoyant body having a large volume can be replaced with a buoyant body having a small volume.
The method for manufacturing the buoyant body using the eco-friendly material according to the present invention includes a method of using the porous material 10 cut into a predetermined size as the float interior material 30, and a method of using the powder material 12 obtained by pulverizing the porous material 10 as a main material of the float interior material 30.
According to the cutting step S10 of the method for producing a buoyant body of the present invention, 11 natural materials such as bamboo, reed, corn stalk, wheat straw, sawdust, and rice straw are cut into porous materials 10 having a predetermined size, and in the sterilization step S20, the porous materials 10 are sterilized with a sterilizing solution, and microorganisms remaining in the natural materials 11 are removed. The sterilizing solution is composed of 15 to 20 parts by weight of sulfur, 10 to 20 parts by weight of caustic soda, and 60 to 70 parts by weight of water with respect to 100 parts by weight of the natural material 10.
In the drying step S30, the sterilized porous material 10 is dried in a dryer at a temperature of 100 to 120 ℃ for 30 to 40 minutes to remove the water remaining inside. In the coating step S40, the porous material 10 dried in the drying step S30 is coated with silicate to form the float interior material 30 having a fixed shape. In this case, the silicate solution is prepared by mixing silicate and water in a ratio of about 2: 1 by weight. In the packing step S50, the buoy inner 30 is packed with the outer 40 made of one of polyethylene and polypropylene, and the outer 40 is prevented from being damaged by external impact or first prevented from being invaded. In this case, the outer material 40 may be made of expanded polypropylene to increase buoyancy.
In addition, a method for manufacturing a buoyant body according to another embodiment of the present invention includes: a pulverization step S31 of pulverizing the porous material 10 dried in the drying step S30 into a powder material 12 in the form of powder; the compression molding step S32 is to mix the powder material 12 with donkey-hide gelatin and to perform compression molding. In the donkey-hide gelatin drying step S33, moisture contained in the donkey-hide gelatin mixed with the powder material 12 is removed. After the donkey-hide gelatin drying process S33, a coating process S40 and a packaging process S50 are performed to manufacture a buoyant body.
The present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by those skilled in the art without departing from the gist of the present invention claimed in the claims. It is understood that such changes are within the scope of the claims.
Claims (3)
1. A method for manufacturing a buoyant body using an environmentally friendly material, comprising:
a cutting step (S10) for cutting a plurality of bamboo, reed, corn stalk, wheat straw, sawdust and rice straw into predetermined sizes;
a sterilization step (S20) in which a sterilization solution comprising 15 to 20 parts by weight of sulfur, 10 to 20 parts by weight of caustic soda, and 60 to 70 parts by weight of water per 100 parts by weight of the natural material (11) cut in the cutting step (S10) is added and the resultant mixture is heated for 20 to 30 minutes to produce a sterilized porous material (10);
a drying step (S30) of drying the porous material (10) sterilized in the sterilization step (S20) in a dryer at a temperature of 100 to 120 ℃ for 30 to 40 minutes;
a coating step (S40) in which the porous material (10) dried in the drying step (S30) is coated with a coating material obtained by mixing a silicate and 50 parts by weight of water per 100 parts by weight of the silicate, thereby producing a float interior material (30);
and a packaging step (S50) for packaging the exterior of the float interior material (30) produced in the coating step (S40) with an exterior material (40) made of one of polyethylene and polypropylene.
2. The method for manufacturing a buoyant body using an environmentally friendly material according to claim 1, wherein:
the drying step (S30) further includes: and a pulverization step (S31) for pulverizing the porous material (10) dried in the dryer into a powder material (12) in the form of powder.
3. The method for manufacturing a buoyant body using an environmentally friendly material according to claim 2, wherein:
the drying step (S30) includes: a compression molding step (S32) of mixing the powder material (12) produced in the pulverization step (S31) with donkey-hide gelatin, and then compression molding the mixture into a predetermined shape; and a donkey-hide gelatin drying step (S33) of drying the porous material (10) molded in the compression molding step (S32) in the dryer at a temperature of 100 ℃ for 20 to 30 minutes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180046001A KR102157283B1 (en) | 2018-04-20 | 2018-04-20 | Buoyant body using eco-friendly materials and manufacturing method thereof |
| KR10-2018-0046001 | 2018-04-20 | ||
| PCT/KR2019/004732 WO2019203602A1 (en) | 2018-04-20 | 2019-04-19 | Floating body using eco-friendly material and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN112040770A CN112040770A (en) | 2020-12-04 |
| CN112040770B true CN112040770B (en) | 2022-03-22 |
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| Country | Link |
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| KR (1) | KR102157283B1 (en) |
| CN (1) | CN112040770B (en) |
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| KR102452418B1 (en) * | 2017-12-29 | 2022-10-07 | 대우조선해양 주식회사 | Load regulation device and method in electric propulsion ship |
| KR102445488B1 (en) * | 2019-08-09 | 2022-10-11 | 주식회사 서광 | Eco-friendly buoy |
| KR102355874B1 (en) * | 2020-11-12 | 2022-02-07 | 동세철 | Buoyancy structure with internal space recycling waste spandex resin, sawdust and waste cork |
| CN115140259A (en) * | 2022-07-04 | 2022-10-04 | 中国电建集团华东勘测设计研究院有限公司 | High-environment-tolerance bamboo floating body applied to floating photovoltaic and preparation method thereof |
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| Publication number | Publication date |
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| KR102157283B1 (en) | 2020-09-17 |
| KR20190122352A (en) | 2019-10-30 |
| CN112040770A (en) | 2020-12-04 |
| WO2019203602A1 (en) | 2019-10-24 |
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